Marie Babkine - Academia.edu (original) (raw)
Papers by Marie Babkine
American Association of Bovine Practitioners Conference Proceedings
Otitis media is a common disease in calves. Clinical diagnosis can be confirmed by diagnostic ima... more Otitis media is a common disease in calves. Clinical diagnosis can be confirmed by diagnostic imaging such as radiography and computed tomography. Early diagnosis of otitis media by a field veterinarian with the aid of a practical diagnostic tool could prevent the condition from becoming chronic and the prognosis from worsening. Ultrasonography of the tympanic bulla (TB) has been described in dogs, cats, and rabbits. The objective of this study was to establish an ultrasonographic approach to the TB and adjacent structures in calves and to describe their ultrasonographic appearance.
Journal of the American Veterinary Medical Association
OBJECTIVE To determine the prognostic value of lactate concentration measurements at admission in... more OBJECTIVE To determine the prognostic value of lactate concentration measurements at admission in cattle with long-bone fractures. ANIMALS 43 cattle with long-bone fractures between July 2016 and Dec 2018. PROCEDURES In this prospective cohort study, lactate concentration was measured in systemic venous blood and locally in capillary blood sampled from the fractured and contralateral limbs of cattle and assessed for outcome prediction. The cutoff value was determined by maximizing the Youden index from receiver-operating characteristic curves. Multivariable logistic regression was employed to verify whether higher lactate concentrations compared with the cutoff value were an independent risk factor for poor outcomes at 30 days or 3 years after admission. RESULTS Poor outcome was associated with higher capillary lactate concentration in the fractured limb (P < .001) and greater difference with systemic blood (P = .005). A cutoff value of lactate difference ≥ 2.4 mmol/L (sensitivit...
The Canadian veterinary journal = La revue veterinaire canadienne, Dec 1, 2021
The purpose of this study was to develop a method for identification of the pylorus, in lactating... more The purpose of this study was to develop a method for identification of the pylorus, in lactating Holstein cows, based on ultrasound examination and the use of external anatomical landmarks such as the mammary vein (anulus venae subcutaneae abdominis). An ultrasound method based on successive identification of 4 internal anatomical landmarks was developed. The procedure was performed 157 times, on clinically healthy lactating Holstein cows, with a portable ultrasound machine equipped with a 3.5 MHz curvilinear probe. The pylorus was identified with a success rate of 98.7% (155 times out of 157 procedures). The average position of the pylorus was noted near the entrance of the right mammary vein, with a craniocaudal and dorsoventral dispersion. This ultrasound method of identifying the pylorus is simple, effective, and rapid.
Journal of Veterinary Internal Medicine, 2021
Abstract Background Downer cow syndrome, a common problem in dairy cattle, represents a diagnosti... more Abstract Background Downer cow syndrome, a common problem in dairy cattle, represents a diagnostic and therapeutic challenge for the attending veterinarian. Identifying prognostic indicators and assessing the odds of survival may improve the accuracy of the clinician's prognosis at the time of diagnosis. Objective To describe a population of downer dairy cows referred to a hospital and investigate predictors of outcome. Animals Recumbent adult dairy cows (cows unable or unwilling to stand without help) treated at a referral hospital. Methods Data at the time of admission were collected from medical records of downer dairy cows treated at the Centre Hospitalier Universitaire Vétérinaire between 1994 and 2016. Simple and multivariable logistic regression analyses were performed to assess the association of predictors with the outcome. Results Among 1318 cows included, 727 (55%) cows were discharged, and 591 (45%) cows died or were euthanized. Cows with longer time of recumbency before referral (odds ratio [OR] = 3.6), tachycardia (100‐120 beats per minute [bpm], OR = 1.93; >120 bpm, OR = 2.92), tachypnea (OR = 1.76), hypothermia (OR = 2.08), anemia (OR = 3.30), neutropenia (OR = 1.7), high aspartate aminotransferase activity (500‐1000 U/L, OR = 2.16; >1000 U/L, OR = 6.69), and increased serum creatinine concentration (OR = 1.75) had higher odds of nonsurvival. Conclusions and Clinical Importance These findings may help the practitioner to consider treatment options and decide if referral is likely beneficial based on the odds of success. Early recognition of low chance of survival may facilitate an early decision for euthanasia.
Journal of Veterinary Internal Medicine, 2020
Abstract Background Abomasitis is a syndrome affecting young milk‐fed calves. The current veterin... more Abstract Background Abomasitis is a syndrome affecting young milk‐fed calves. The current veterinary literature describes mainly its necropsy findings. Objectives To describe the clinical presentation, complementary tests, treatments, and case‐fatality rate of calves with a clinical diagnosis of abomasitis and to identify potential factors associated with outcome. Methods Observational retrospective cohort study (2006‐2016). Review of the medical records of calves <3 months of age presented with abdominal and abomasal distension for <7 days that were clinically diagnosed with abomasitis at the Faculty of Veterinary Medicine of the Université de Montréal. A follow‐up examination was conducted by telephone interview. Animals Twenty‐three calves clinically diagnosed with abomasitis. Results Median age of presentation was 3 days (range, 0‐62 days). The typical duration of the clinical course was <24 hours (15/23). On admission, the 2 most common clinical signs were anorexia (13/14) and positive succussion (13/14). Hyper‐l‐lactatemia (15/16) and increased γ‐glutamyl‐transferase activity (13/14) were the most common laboratory abnormalities. Hypoproteinemia (19/22) and a left shift (15/18) of the neutrophils also were observed. The short‐term case‐fatality rate was 52% (12/23). The clinical diagnosis was confirmed on all necropsied calves. Clostridium spp. and Escherichia coli were the most frequently isolated bacteria. Based on univariate statistical analysis, the surviving calves were significantly (P < .05) less hypothermic, less acidemic, less hyper‐l‐lactatemic, and had lower serum creatinine concentrations on admission than did the deceased calves. Conclusions and Clinical Importance In our study, abomasitis was associated with a guarded prognosis.
Veterinary and Comparative Orthopaedics and Traumatology, 2018
Objectives (1) To develop an evaluation grid to provide a systematic interpretation of calves'... more Objectives (1) To develop an evaluation grid to provide a systematic interpretation of calves' articular radiographs, (2) to describe radiographic lesions of septic arthritis in dairy calves less than 6 months of age, (3) to investigate potential associations between demographic data or synovial bacteriological culture results and radiographic lesions (4) to determine whether an association is present between radiographic lesions, their severity and the long-term outcome. Methods Medical records of 54 calves less than 180 days old treated for septic arthritis between 2009 and 2014 with radiographic images performed in the first 2 days after admission were reviewed. Results Most common radiographic findings were increased articular joint space height (n = 49), irregularity of the articular surfaces (n = 24) and subchondral bone lysis (n = 24). The number of lesions observed and their severity were associated with older calves (p = 0.02), increased time between onset of clinical s...
Journal of the American Veterinary Medical Association, 2018
OBJECTIVE To describe clinical findings and diagnostic test results and identify potential progno... more OBJECTIVE To describe clinical findings and diagnostic test results and identify potential prognostic indicators for calves with septic arthritis. DESIGN Retrospective case series. ANIMALS 64 calves with septic arthritis. PROCEDURES The medical record database for a veterinary teaching hospital was searched to identify calves ≤ 6 months old that were treated for septic arthritis between 2009 and 2014. Data evaluated included signalment, history, physical examination and diagnostic test results, treatment, and outcome. Descriptive data were generated, and calves were assigned to 2 groups (neonatal [≤ 28 days old] or postneonatal [29 to 180 days old]) on the basis of age at hospital admission for comparison purposes. RESULTS 64 calves had 92 infected joints; 17 calves had polyarthritis. Carpal joints were most frequently affected followed by the stifle and tarsal joints. Forty-nine bacterial isolates were identified from synovial specimens for 38 calves, and the most commonly identifi...
Journal of Veterinary Internal Medicine, 2019
Background: Characterization of the clinical signs, response to treatment and prognosis can be us... more Background: Characterization of the clinical signs, response to treatment and prognosis can be useful information for decision-making when evaluating cattle with pharyngeal trauma. Objective: To describe the signalment, history, clinicopathologic, endoscopic, ultrasonographic, radiographic, and postmortem findings as well as treatments and outcomes of cattle diagnosed with pharyngeal perforation/trauma. Animals: Review of medical records of cattle >1 month of age admitted to a Veterinary Teaching Hospital from 1995 to 2017. Methods: Retrospective study. Review of medical records of cattle with pharyngeal perforation/trauma identified by oral or endoscopic examination in hospital setting. Results: Twenty-seven out of 7550 (0.36%) cases met the inclusion criteria. Pharyngeal perforation/trauma was associated with the administration of a bolus in 24 (89%) cows and a magnet in 3 (11%) cases. The boluses contained monensin (n = 12), calcium salts (n = 5), iodine (n = 1), aspirin (n = 1), vitamins (n = 1), and an unknown product (n = 4). The primary clinical signs were dysphagia, swelling of the throatlatch, subcutaneous emphysema, swelling, and pain on palpation of the throatlatch. Seventeen (63%) cows were discharged whereas 10 (37%) were euthanized. Median time between the suspected traumatic event and hospital admission was 1 day (range: 0.5-3 days) and 2 days (range: 0.5-15) for surviving and nonsurviving cattle, respectively. All 5 cows that suffered pharyngeal trauma associated with administration of calcium salt bolus were euthanized. Conclusions and Clinical Importance: Pharyngeal trauma is a rare condition in cattle. Case fatality rate increases if not diagnosed and treated promptly. The nature of the penetrating foreign body influences the outcome.
Journal of Veterinary Internal Medicine, 2018
Background: Threshold values for total nucleated cell count (TNCC) and protein concentration in c... more Background: Threshold values for total nucleated cell count (TNCC) and protein concentration in cerebrospinal fluid (CSF) of downer dairy cows suggestive of a spinal cord lesion were recently published. Objectives: Determine short-and long-term survival of downer cows that underwent CSF analysis using the reported threshold values. Evaluate the prognostic value of these threshold values to predict short-and long-term survival. Animals: Two hundred and fourteen downer adult dairy cows that underwent CSF analysis during hospitalization at the Centre Hospitalier Universitaire Vétérinaire (CHUV) of the Université de Montréal. Methods: Retrospective study. Medical records of downer adult dairy cows presented to the hospital between January 2006 and October 2014 for which CSF analysis results were available were studied. Short-term (discharge from hospital) and long-term (completion of lactation) survival were determined and compared in accordance with CSF TNCC and protein concentration, using a Chi-square test. Results: Cows with CSF TNCC and/or protein concentration above the threshold values had a significantly lower short-term survival rate (P = .02). The odds of nonsurvival of cows with one or both CSF values above the threshold values was 2.16 times higher than the odds for cows with values under the threshold values. CSF TNCC >4.5 cells/μL had sensitivity and specificity of 17.3% (95% CI: 10.7%-25.7%) and 92.3% (95% CI: 85.4%-96.6%), respectively, for predicting short-term nonsurvival. CSF protein concentration >0.39 g/L had sensitivity and specificity of 20.9% (95% CI: 13.7%-29.7%) and 91.4% (95% CI: 84.2%-96.0%), respectively. Conclusions: CSF analysis above threshold values used in this study is associated with increased odds of short-term nonsurvival.
Journal of Veterinary Internal Medicine, 2017
Background: Diagnosis of central nervous system (CNS) lesions in recumbent dairy cattle (RDC) is ... more Background: Diagnosis of central nervous system (CNS) lesions in recumbent dairy cattle (RDC) is challenging because neurologic examination is limited and medical imaging often is challenging or unrewarding. Cerebrospinal fluid (CSF) analysis is useful in the diagnosis of CNS disorders in cattle. However, its utility in identifying spinal cord lesions in RDC remains to be evaluated. Hypothesis/Objectives: We hypothesized that CSF analysis would discriminate between RDC with and without spinal cord lesions. Animals: Twenty-one RDC with spinal cord lesions (RDC+) and 19 without (RDCÀ) were evaluated. Methods: Spinal cord lesions were confirmed at necropsy. Signalment, clinical findings, and CSF results were compared retrospectively. Total nucleated cell count and differential, protein concentration, and red blood cell count in RDC+ and RDCÀ were compared. Results: Neoplasia, trauma, and infectious processes were the most frequent spinal cord lesions identified. Cerebrospinal fluid protein concentrations and TNCC were significantly higher in RDC+ compared to RDCÀ (P = .0092 and P = .0103, respectively). Additionally, CSF protein concentrations and TNCC in RDCÀ were lower than previously published reference ranges. Using an interpretation rule based on CSF protein concentration and TNCC, it was possible to accurately identify 13 RDC with spinal cord lesions and 6 RDC without lesions. It was not possible to determine spinal cord status in the remaining 18 RDC. Conclusions and Clinical Importance: Cerebrospinal fluid analysis is valuable in the evaluation of spinal cord status in RDC. The prognosis associated with these findings remains to be determined.
The Canadian veterinary journal = La revue veterinaire canadienne, 2016
This study evaluated the long-term prognosis of return to normal mechanical milking after reconst... more This study evaluated the long-term prognosis of return to normal mechanical milking after reconstructive teat surgery and determined the factors that have an impact on the outcome. A retrospective study of 67 dairy cows with teat lacerations was performed. Milking status at discharge and at long-term follow-up was adequate for 83% and 75% of the cows, respectively. No statistically significant differences were detected between the long-term prognosis and the age of the cow, the stage of lactation at presentation, or the configuration of the laceration. Lacerations repaired more than 24 hours after the trauma were more frequently associated with a negative outcome (P = 0.05). Mastitis was the most frequent complication (n = 17) and had a statistically significant negative impact on long-term prognosis (P = 0.02). Reconstructive surgery of lacerated teat in dairy cows can help establish return to normal mechanical milking.
Veterinary Surgery, 2016
OBJECTIVE To describe the clinical findings, surgical treatment, and long-term outcome of dairy c... more OBJECTIVE To describe the clinical findings, surgical treatment, and long-term outcome of dairy cattle undergoing partial hysterectomy with or without unilateral ovariectomy. STUDY DESIGN Retrospective case series. ANIMALS Dairy cattle (n = 7). METHODS Medical records (June 2007-June 2014) of dairy cattle that had partial hysterectomy with or without ipsilateral ovariectomy were reviewed. Follow-up data were obtained by telephone interviews with owners and referring veterinarians between 6 months and 7 years following discharge. RESULTS Seven dairy cattle met the inclusion criteria. Diagnoses made intra- or postoperatively were ovarian abscess with multiorgan adhesions (4 cows), segmental aplasia of the uterus (2 cows), and uterine lymphosarcoma (1 cow). Partial hysterectomy with or without unilateral ovariectomy was performed without surgical complications by standing flank approach. All cows were successfully discharged from the hospital (short-term prognosis). Five cows became pregnant, and 4 delivered live calves and had a satisfactory productive life without long-term complications. CONCLUSION Partial hysterectomy by standing flank approach should be considered as a viable treatment option for unilateral ovarian or uterine problems in dairy cattle. Cattle undergoing partial hysterectomy with or without ipsilateral ovariectomy are capable of satisfactory reproduction and milk production after surgery with no short- or long-term complications.
Point Veterinaire, 2010
La chirurgie correctrice des deplacements de caillette a gauche represente l'indication majeu... more La chirurgie correctrice des deplacements de caillette a gauche represente l'indication majeure de la laparoscopie dans l'espece bovine. La procedure est facile a apprendre et offre d'excellents resultats, tout en limitant les temps de retrait de lait lies a l'administration des antibiotiques. L'achat du materiel necessaire a la realisation de laparoscopies represente un investissement (environ 4 500 €). Toutefois, son utilisation dans le cadre de plusieurs indications diagnostiques amortit le cout. Les affections decrites dans cet article illustrent l'utilite de cet outil dans l'arsenal diagnostique des veterinaires praticiens.
The Canadian veterinary journal. La revue vétérinaire canadienne, 2014
A Holstein cow was presented for inspiratory dyspnea. Endoscopic evaluation revealed swollen aryt... more A Holstein cow was presented for inspiratory dyspnea. Endoscopic evaluation revealed swollen arytenoids and a presumptive diagnosis of bilateral arytenoidal chondritis was made. A partial arytenoidectomy was performed, the right arytenoid was submitted for histopathology, and a diagnosis of laryngeal lymphoma was made. Due to the poor prognosis, the cow was euthanized.
The Canadian veterinary journal. La revue vétérinaire canadienne, 2000
Animal cloning is becoming a useful technique for producing transgenic farm animals and is likely... more Animal cloning is becoming a useful technique for producing transgenic farm animals and is likely to be used to produce clones from valuable adults. Other applications will also undoubtedly be discovered in the near future, such as for preserving endangered breeds and species. Although cloning promises great advantages for commerce and research alike, its outcome is not always certain due to high pregnancy losses and high morbidity and mortality during the neonatal period. Research into the mechanisms involved in the reprogramming of the nucleus is being conducted throughout the world in an attempt to better understand the molecular and cellular mechanisms involved in correcting these problems. Although the cause of these anomalies remains mostly unknown, similar phenotypes have been observed in calves derived through in vitro fertilization, suggesting that culture conditions are involved in these phenomena. In the meantime, veterinarians and theriogenologists have an important role...
The Canadian veterinary journal. La revue vétérinaire canadienne, 2012
Epidemiological data, clinical findings, laboratory data, medical imaging, and outcomes were revi... more Epidemiological data, clinical findings, laboratory data, medical imaging, and outcomes were reviewed in 29 dairy calves with otitis media/interna. Age at admission ranged from 1 to 24 wk. The majority of calves were referred during winter. Clinical signs included drooping ear, ptosis, head tilt, abnormal nystagmus, strabismus, dysphagia, regurgitation, stiff neck, opisthotonos, facial hyperesthesia, and purulent aural discharge. Intranasal endoscopic examination of 5 animals revealed nasopharyngeal collapse in 4. Cerebrospinal fluid (CSF) was abnormal in all of 7 cases. Mycoplasma bovis was cultured from all but 1 case with external ear or tympanic bullae samples (n = 12), and Mycoplasma arginini was cultured from the remaining ear sample. Radiographs of the tympanic bullae were performed in 24 calves, tomodensitometry (CT) in 3 calves and ultrasound in 4 calves. According to medical imaging techniques or necropsy, 69% of the cases were classified as chronic. Mean duration of treat...
The Canadian veterinary journal. La revue vétérinaire canadienne, 2011
A 3-month-old, female Holstein calf was examined because of marked perineal swelling and tenesmus... more A 3-month-old, female Holstein calf was examined because of marked perineal swelling and tenesmus of 4-days duration. A congenitally enlarged urethral diverticulum was diagnosed using fluoroscopic and ultrasonographic imaging techniques. The urethral diverticulum was surgically resected and the perineal area was reconstructed.
The Canadian veterinary journal. La revue vétérinaire canadienne, 2010
A 17-month-old Holstein heifer was presented for persistent enlargement above the right hind fetl... more A 17-month-old Holstein heifer was presented for persistent enlargement above the right hind fetlock of 1-month's duration. Diffuse plantar soft tissue swelling was present on the radiographs and ultrasonography revealed the presence of multiple porcupine quill extremities embedded in the subcutaneous tissue within the flexor tendon sheath wall. Surgical removal was performed.
American Association of Bovine Practitioners Conference Proceedings
Otitis media is a common disease in calves. Clinical diagnosis can be confirmed by diagnostic ima... more Otitis media is a common disease in calves. Clinical diagnosis can be confirmed by diagnostic imaging such as radiography and computed tomography. Early diagnosis of otitis media by a field veterinarian with the aid of a practical diagnostic tool could prevent the condition from becoming chronic and the prognosis from worsening. Ultrasonography of the tympanic bulla (TB) has been described in dogs, cats, and rabbits. The objective of this study was to establish an ultrasonographic approach to the TB and adjacent structures in calves and to describe their ultrasonographic appearance.
Journal of the American Veterinary Medical Association
OBJECTIVE To determine the prognostic value of lactate concentration measurements at admission in... more OBJECTIVE To determine the prognostic value of lactate concentration measurements at admission in cattle with long-bone fractures. ANIMALS 43 cattle with long-bone fractures between July 2016 and Dec 2018. PROCEDURES In this prospective cohort study, lactate concentration was measured in systemic venous blood and locally in capillary blood sampled from the fractured and contralateral limbs of cattle and assessed for outcome prediction. The cutoff value was determined by maximizing the Youden index from receiver-operating characteristic curves. Multivariable logistic regression was employed to verify whether higher lactate concentrations compared with the cutoff value were an independent risk factor for poor outcomes at 30 days or 3 years after admission. RESULTS Poor outcome was associated with higher capillary lactate concentration in the fractured limb (P < .001) and greater difference with systemic blood (P = .005). A cutoff value of lactate difference ≥ 2.4 mmol/L (sensitivit...
The Canadian veterinary journal = La revue veterinaire canadienne, Dec 1, 2021
The purpose of this study was to develop a method for identification of the pylorus, in lactating... more The purpose of this study was to develop a method for identification of the pylorus, in lactating Holstein cows, based on ultrasound examination and the use of external anatomical landmarks such as the mammary vein (anulus venae subcutaneae abdominis). An ultrasound method based on successive identification of 4 internal anatomical landmarks was developed. The procedure was performed 157 times, on clinically healthy lactating Holstein cows, with a portable ultrasound machine equipped with a 3.5 MHz curvilinear probe. The pylorus was identified with a success rate of 98.7% (155 times out of 157 procedures). The average position of the pylorus was noted near the entrance of the right mammary vein, with a craniocaudal and dorsoventral dispersion. This ultrasound method of identifying the pylorus is simple, effective, and rapid.
Journal of Veterinary Internal Medicine, 2021
Abstract Background Downer cow syndrome, a common problem in dairy cattle, represents a diagnosti... more Abstract Background Downer cow syndrome, a common problem in dairy cattle, represents a diagnostic and therapeutic challenge for the attending veterinarian. Identifying prognostic indicators and assessing the odds of survival may improve the accuracy of the clinician's prognosis at the time of diagnosis. Objective To describe a population of downer dairy cows referred to a hospital and investigate predictors of outcome. Animals Recumbent adult dairy cows (cows unable or unwilling to stand without help) treated at a referral hospital. Methods Data at the time of admission were collected from medical records of downer dairy cows treated at the Centre Hospitalier Universitaire Vétérinaire between 1994 and 2016. Simple and multivariable logistic regression analyses were performed to assess the association of predictors with the outcome. Results Among 1318 cows included, 727 (55%) cows were discharged, and 591 (45%) cows died or were euthanized. Cows with longer time of recumbency before referral (odds ratio [OR] = 3.6), tachycardia (100‐120 beats per minute [bpm], OR = 1.93; >120 bpm, OR = 2.92), tachypnea (OR = 1.76), hypothermia (OR = 2.08), anemia (OR = 3.30), neutropenia (OR = 1.7), high aspartate aminotransferase activity (500‐1000 U/L, OR = 2.16; >1000 U/L, OR = 6.69), and increased serum creatinine concentration (OR = 1.75) had higher odds of nonsurvival. Conclusions and Clinical Importance These findings may help the practitioner to consider treatment options and decide if referral is likely beneficial based on the odds of success. Early recognition of low chance of survival may facilitate an early decision for euthanasia.
Journal of Veterinary Internal Medicine, 2020
Abstract Background Abomasitis is a syndrome affecting young milk‐fed calves. The current veterin... more Abstract Background Abomasitis is a syndrome affecting young milk‐fed calves. The current veterinary literature describes mainly its necropsy findings. Objectives To describe the clinical presentation, complementary tests, treatments, and case‐fatality rate of calves with a clinical diagnosis of abomasitis and to identify potential factors associated with outcome. Methods Observational retrospective cohort study (2006‐2016). Review of the medical records of calves <3 months of age presented with abdominal and abomasal distension for <7 days that were clinically diagnosed with abomasitis at the Faculty of Veterinary Medicine of the Université de Montréal. A follow‐up examination was conducted by telephone interview. Animals Twenty‐three calves clinically diagnosed with abomasitis. Results Median age of presentation was 3 days (range, 0‐62 days). The typical duration of the clinical course was <24 hours (15/23). On admission, the 2 most common clinical signs were anorexia (13/14) and positive succussion (13/14). Hyper‐l‐lactatemia (15/16) and increased γ‐glutamyl‐transferase activity (13/14) were the most common laboratory abnormalities. Hypoproteinemia (19/22) and a left shift (15/18) of the neutrophils also were observed. The short‐term case‐fatality rate was 52% (12/23). The clinical diagnosis was confirmed on all necropsied calves. Clostridium spp. and Escherichia coli were the most frequently isolated bacteria. Based on univariate statistical analysis, the surviving calves were significantly (P < .05) less hypothermic, less acidemic, less hyper‐l‐lactatemic, and had lower serum creatinine concentrations on admission than did the deceased calves. Conclusions and Clinical Importance In our study, abomasitis was associated with a guarded prognosis.
Veterinary and Comparative Orthopaedics and Traumatology, 2018
Objectives (1) To develop an evaluation grid to provide a systematic interpretation of calves'... more Objectives (1) To develop an evaluation grid to provide a systematic interpretation of calves' articular radiographs, (2) to describe radiographic lesions of septic arthritis in dairy calves less than 6 months of age, (3) to investigate potential associations between demographic data or synovial bacteriological culture results and radiographic lesions (4) to determine whether an association is present between radiographic lesions, their severity and the long-term outcome. Methods Medical records of 54 calves less than 180 days old treated for septic arthritis between 2009 and 2014 with radiographic images performed in the first 2 days after admission were reviewed. Results Most common radiographic findings were increased articular joint space height (n = 49), irregularity of the articular surfaces (n = 24) and subchondral bone lysis (n = 24). The number of lesions observed and their severity were associated with older calves (p = 0.02), increased time between onset of clinical s...
Journal of the American Veterinary Medical Association, 2018
OBJECTIVE To describe clinical findings and diagnostic test results and identify potential progno... more OBJECTIVE To describe clinical findings and diagnostic test results and identify potential prognostic indicators for calves with septic arthritis. DESIGN Retrospective case series. ANIMALS 64 calves with septic arthritis. PROCEDURES The medical record database for a veterinary teaching hospital was searched to identify calves ≤ 6 months old that were treated for septic arthritis between 2009 and 2014. Data evaluated included signalment, history, physical examination and diagnostic test results, treatment, and outcome. Descriptive data were generated, and calves were assigned to 2 groups (neonatal [≤ 28 days old] or postneonatal [29 to 180 days old]) on the basis of age at hospital admission for comparison purposes. RESULTS 64 calves had 92 infected joints; 17 calves had polyarthritis. Carpal joints were most frequently affected followed by the stifle and tarsal joints. Forty-nine bacterial isolates were identified from synovial specimens for 38 calves, and the most commonly identifi...
Journal of Veterinary Internal Medicine, 2019
Background: Characterization of the clinical signs, response to treatment and prognosis can be us... more Background: Characterization of the clinical signs, response to treatment and prognosis can be useful information for decision-making when evaluating cattle with pharyngeal trauma. Objective: To describe the signalment, history, clinicopathologic, endoscopic, ultrasonographic, radiographic, and postmortem findings as well as treatments and outcomes of cattle diagnosed with pharyngeal perforation/trauma. Animals: Review of medical records of cattle >1 month of age admitted to a Veterinary Teaching Hospital from 1995 to 2017. Methods: Retrospective study. Review of medical records of cattle with pharyngeal perforation/trauma identified by oral or endoscopic examination in hospital setting. Results: Twenty-seven out of 7550 (0.36%) cases met the inclusion criteria. Pharyngeal perforation/trauma was associated with the administration of a bolus in 24 (89%) cows and a magnet in 3 (11%) cases. The boluses contained monensin (n = 12), calcium salts (n = 5), iodine (n = 1), aspirin (n = 1), vitamins (n = 1), and an unknown product (n = 4). The primary clinical signs were dysphagia, swelling of the throatlatch, subcutaneous emphysema, swelling, and pain on palpation of the throatlatch. Seventeen (63%) cows were discharged whereas 10 (37%) were euthanized. Median time between the suspected traumatic event and hospital admission was 1 day (range: 0.5-3 days) and 2 days (range: 0.5-15) for surviving and nonsurviving cattle, respectively. All 5 cows that suffered pharyngeal trauma associated with administration of calcium salt bolus were euthanized. Conclusions and Clinical Importance: Pharyngeal trauma is a rare condition in cattle. Case fatality rate increases if not diagnosed and treated promptly. The nature of the penetrating foreign body influences the outcome.
Journal of Veterinary Internal Medicine, 2018
Background: Threshold values for total nucleated cell count (TNCC) and protein concentration in c... more Background: Threshold values for total nucleated cell count (TNCC) and protein concentration in cerebrospinal fluid (CSF) of downer dairy cows suggestive of a spinal cord lesion were recently published. Objectives: Determine short-and long-term survival of downer cows that underwent CSF analysis using the reported threshold values. Evaluate the prognostic value of these threshold values to predict short-and long-term survival. Animals: Two hundred and fourteen downer adult dairy cows that underwent CSF analysis during hospitalization at the Centre Hospitalier Universitaire Vétérinaire (CHUV) of the Université de Montréal. Methods: Retrospective study. Medical records of downer adult dairy cows presented to the hospital between January 2006 and October 2014 for which CSF analysis results were available were studied. Short-term (discharge from hospital) and long-term (completion of lactation) survival were determined and compared in accordance with CSF TNCC and protein concentration, using a Chi-square test. Results: Cows with CSF TNCC and/or protein concentration above the threshold values had a significantly lower short-term survival rate (P = .02). The odds of nonsurvival of cows with one or both CSF values above the threshold values was 2.16 times higher than the odds for cows with values under the threshold values. CSF TNCC >4.5 cells/μL had sensitivity and specificity of 17.3% (95% CI: 10.7%-25.7%) and 92.3% (95% CI: 85.4%-96.6%), respectively, for predicting short-term nonsurvival. CSF protein concentration >0.39 g/L had sensitivity and specificity of 20.9% (95% CI: 13.7%-29.7%) and 91.4% (95% CI: 84.2%-96.0%), respectively. Conclusions: CSF analysis above threshold values used in this study is associated with increased odds of short-term nonsurvival.
Journal of Veterinary Internal Medicine, 2017
Background: Diagnosis of central nervous system (CNS) lesions in recumbent dairy cattle (RDC) is ... more Background: Diagnosis of central nervous system (CNS) lesions in recumbent dairy cattle (RDC) is challenging because neurologic examination is limited and medical imaging often is challenging or unrewarding. Cerebrospinal fluid (CSF) analysis is useful in the diagnosis of CNS disorders in cattle. However, its utility in identifying spinal cord lesions in RDC remains to be evaluated. Hypothesis/Objectives: We hypothesized that CSF analysis would discriminate between RDC with and without spinal cord lesions. Animals: Twenty-one RDC with spinal cord lesions (RDC+) and 19 without (RDCÀ) were evaluated. Methods: Spinal cord lesions were confirmed at necropsy. Signalment, clinical findings, and CSF results were compared retrospectively. Total nucleated cell count and differential, protein concentration, and red blood cell count in RDC+ and RDCÀ were compared. Results: Neoplasia, trauma, and infectious processes were the most frequent spinal cord lesions identified. Cerebrospinal fluid protein concentrations and TNCC were significantly higher in RDC+ compared to RDCÀ (P = .0092 and P = .0103, respectively). Additionally, CSF protein concentrations and TNCC in RDCÀ were lower than previously published reference ranges. Using an interpretation rule based on CSF protein concentration and TNCC, it was possible to accurately identify 13 RDC with spinal cord lesions and 6 RDC without lesions. It was not possible to determine spinal cord status in the remaining 18 RDC. Conclusions and Clinical Importance: Cerebrospinal fluid analysis is valuable in the evaluation of spinal cord status in RDC. The prognosis associated with these findings remains to be determined.
The Canadian veterinary journal = La revue veterinaire canadienne, 2016
This study evaluated the long-term prognosis of return to normal mechanical milking after reconst... more This study evaluated the long-term prognosis of return to normal mechanical milking after reconstructive teat surgery and determined the factors that have an impact on the outcome. A retrospective study of 67 dairy cows with teat lacerations was performed. Milking status at discharge and at long-term follow-up was adequate for 83% and 75% of the cows, respectively. No statistically significant differences were detected between the long-term prognosis and the age of the cow, the stage of lactation at presentation, or the configuration of the laceration. Lacerations repaired more than 24 hours after the trauma were more frequently associated with a negative outcome (P = 0.05). Mastitis was the most frequent complication (n = 17) and had a statistically significant negative impact on long-term prognosis (P = 0.02). Reconstructive surgery of lacerated teat in dairy cows can help establish return to normal mechanical milking.
Veterinary Surgery, 2016
OBJECTIVE To describe the clinical findings, surgical treatment, and long-term outcome of dairy c... more OBJECTIVE To describe the clinical findings, surgical treatment, and long-term outcome of dairy cattle undergoing partial hysterectomy with or without unilateral ovariectomy. STUDY DESIGN Retrospective case series. ANIMALS Dairy cattle (n = 7). METHODS Medical records (June 2007-June 2014) of dairy cattle that had partial hysterectomy with or without ipsilateral ovariectomy were reviewed. Follow-up data were obtained by telephone interviews with owners and referring veterinarians between 6 months and 7 years following discharge. RESULTS Seven dairy cattle met the inclusion criteria. Diagnoses made intra- or postoperatively were ovarian abscess with multiorgan adhesions (4 cows), segmental aplasia of the uterus (2 cows), and uterine lymphosarcoma (1 cow). Partial hysterectomy with or without unilateral ovariectomy was performed without surgical complications by standing flank approach. All cows were successfully discharged from the hospital (short-term prognosis). Five cows became pregnant, and 4 delivered live calves and had a satisfactory productive life without long-term complications. CONCLUSION Partial hysterectomy by standing flank approach should be considered as a viable treatment option for unilateral ovarian or uterine problems in dairy cattle. Cattle undergoing partial hysterectomy with or without ipsilateral ovariectomy are capable of satisfactory reproduction and milk production after surgery with no short- or long-term complications.
Point Veterinaire, 2010
La chirurgie correctrice des deplacements de caillette a gauche represente l'indication majeu... more La chirurgie correctrice des deplacements de caillette a gauche represente l'indication majeure de la laparoscopie dans l'espece bovine. La procedure est facile a apprendre et offre d'excellents resultats, tout en limitant les temps de retrait de lait lies a l'administration des antibiotiques. L'achat du materiel necessaire a la realisation de laparoscopies represente un investissement (environ 4 500 €). Toutefois, son utilisation dans le cadre de plusieurs indications diagnostiques amortit le cout. Les affections decrites dans cet article illustrent l'utilite de cet outil dans l'arsenal diagnostique des veterinaires praticiens.
The Canadian veterinary journal. La revue vétérinaire canadienne, 2014
A Holstein cow was presented for inspiratory dyspnea. Endoscopic evaluation revealed swollen aryt... more A Holstein cow was presented for inspiratory dyspnea. Endoscopic evaluation revealed swollen arytenoids and a presumptive diagnosis of bilateral arytenoidal chondritis was made. A partial arytenoidectomy was performed, the right arytenoid was submitted for histopathology, and a diagnosis of laryngeal lymphoma was made. Due to the poor prognosis, the cow was euthanized.
The Canadian veterinary journal. La revue vétérinaire canadienne, 2000
Animal cloning is becoming a useful technique for producing transgenic farm animals and is likely... more Animal cloning is becoming a useful technique for producing transgenic farm animals and is likely to be used to produce clones from valuable adults. Other applications will also undoubtedly be discovered in the near future, such as for preserving endangered breeds and species. Although cloning promises great advantages for commerce and research alike, its outcome is not always certain due to high pregnancy losses and high morbidity and mortality during the neonatal period. Research into the mechanisms involved in the reprogramming of the nucleus is being conducted throughout the world in an attempt to better understand the molecular and cellular mechanisms involved in correcting these problems. Although the cause of these anomalies remains mostly unknown, similar phenotypes have been observed in calves derived through in vitro fertilization, suggesting that culture conditions are involved in these phenomena. In the meantime, veterinarians and theriogenologists have an important role...
The Canadian veterinary journal. La revue vétérinaire canadienne, 2012
Epidemiological data, clinical findings, laboratory data, medical imaging, and outcomes were revi... more Epidemiological data, clinical findings, laboratory data, medical imaging, and outcomes were reviewed in 29 dairy calves with otitis media/interna. Age at admission ranged from 1 to 24 wk. The majority of calves were referred during winter. Clinical signs included drooping ear, ptosis, head tilt, abnormal nystagmus, strabismus, dysphagia, regurgitation, stiff neck, opisthotonos, facial hyperesthesia, and purulent aural discharge. Intranasal endoscopic examination of 5 animals revealed nasopharyngeal collapse in 4. Cerebrospinal fluid (CSF) was abnormal in all of 7 cases. Mycoplasma bovis was cultured from all but 1 case with external ear or tympanic bullae samples (n = 12), and Mycoplasma arginini was cultured from the remaining ear sample. Radiographs of the tympanic bullae were performed in 24 calves, tomodensitometry (CT) in 3 calves and ultrasound in 4 calves. According to medical imaging techniques or necropsy, 69% of the cases were classified as chronic. Mean duration of treat...
The Canadian veterinary journal. La revue vétérinaire canadienne, 2011
A 3-month-old, female Holstein calf was examined because of marked perineal swelling and tenesmus... more A 3-month-old, female Holstein calf was examined because of marked perineal swelling and tenesmus of 4-days duration. A congenitally enlarged urethral diverticulum was diagnosed using fluoroscopic and ultrasonographic imaging techniques. The urethral diverticulum was surgically resected and the perineal area was reconstructed.
The Canadian veterinary journal. La revue vétérinaire canadienne, 2010
A 17-month-old Holstein heifer was presented for persistent enlargement above the right hind fetl... more A 17-month-old Holstein heifer was presented for persistent enlargement above the right hind fetlock of 1-month's duration. Diffuse plantar soft tissue swelling was present on the radiographs and ultrasonography revealed the presence of multiple porcupine quill extremities embedded in the subcutaneous tissue within the flexor tendon sheath wall. Surgical removal was performed.