G. Labarca - Academia.edu (original) (raw)
Papers by G. Labarca
Jornal Brasileiro de Pneumologia, 2015
Revista Española de Cirugía Ortopédica y Traumatología (English Edition), 2011
IntroductionThere is no consensus on the optimal treatment of partial tears in the anterior cruci... more IntroductionThere is no consensus on the optimal treatment of partial tears in the anterior cruciate ligaments (ACL). Radiofrequency (RF) has been used to treat ACL partial tears. This treatment can be detrimental to ACL strength.
INVESTIGACIÓN Efecto de la radiofrecuencia en roturas parciales del ligamento cruzado anterior: e... more INVESTIGACIÓN Efecto de la radiofrecuencia en roturas parciales del ligamento cruzado anterior: estudio experimental ex vivo en cerdos Recibido el 16 de noviembre de 2010; aceptado el 20 de marzo de 2011 Disponible en Internet el 2 de junio de 2011 PALABRAS CLAVE LCA; Roturas parciales; Radiofrecuencia; Punto de fallo
Although in most patients the diagnosis of cystic fibrosis (CF) is made during their first years ... more Although in most patients the diagnosis of cystic fibrosis (CF) is made during their first years of life, a proportion of patients is diagnosed during adulthood. To describe the features of adult patients diagnosed with CF. Analysis of medical records of patients diagnosed with CF in a public hospital devoted to respiratory diseases. Demographic, clinical, laboratory and microbiological data were recorded. Fifty eight patients aged 25.4 ± 6.5 years were included. In 40% of them, CF was diagnosed after 15 years of age. The most common mutation found was AF508. Among clinical characteristics, lung involvement, mainly bronchiectasis, was found in 93%. The mean forced expiratory volume in the first second (FEV,) was 65,7 ± 27,1%. Fifteen patients were colonized with Pseudomonas aeruginosa. The main complication seen was hemoptysis, in 12% of patients. Five patients died, mostly due to respiratory distress associated with sepsis, while three were subjected to bilateral lung transplantation. Patients in whom the diagnosis of CF was made after 15 years of age, had lower frequency of AF508 mutation, were most commonly women and had a lower rate of pancreatic involvement. CF is a disease that is increasingly reaching adult population. CF must be suspected in adolescents and young adults who suffer chronic lung diseases such as bronchiectasis, particularly when they are colonized by Pseudomonas aeruginosa, or in patients who develop infections by uncommon organisms.
Respiratory Medicine Case Reports, 2012
A 74 year old female presented with fever, associated with papules and plaque in her upper and lo... more A 74 year old female presented with fever, associated with papules and plaque in her upper and lower extremities. Exams revealed blood leukocytosis and a positive urine culture. Antibiotic therapy was initiated with no clinical response. After 1 week, chest X-ray showed right upper lobe alveolar infiltrate. A skin biopsy of the lesion showed infiltration by neutrophils, consistent with Sweet's Syndrome. Patient's condition progressively worsened, requiring oxygentherapy. Bronchoscopy and bronchoalveolar lavage were normal, transbronchial biopsies suggested lung involvement of Sweet 's syndrome. Antibiotic therapy was stopped. Corticosteroid were started. Therapy resulted in rapid clinical and radiological improvement.
Respiratory Care, 2014
Dendriform pulmonary ossification is a rare condition often diagnosed by either surgery or postmo... more Dendriform pulmonary ossification is a rare condition often diagnosed by either surgery or postmortem examination. We report a 43-y-old man with a history of nonproductive cough for 1 y. His physical examination was unremarkable. Chest computed tomography showed multiple bilateral micronodules in both lower lobes; however, the patient's pulmonary function was normal. Flexible bronchoscopy with transbronchial biopsies revealed branching ossification. Pulmonary ossification is a chronic process characterized by progressive metaplastic ossification. We reviewed a total of 42 cases of dendriform pulmonary ossification reported in the medical literature: most of these cases were diagnosed by autopsy. Despite its rarity, dendriform pulmonary ossification should be considered in the differential diagnosis of diffuse lung disease. Bronchoscopy with transbronchial biopsies must be considered as a potential diagnostic procedure.
Revista ANACEM
Abstract: INTRODUCTION: Acromioclavicular dislocation is a traumaticinjury of the shoulder. The s... more Abstract: INTRODUCTION: Acromioclavicular dislocation is a traumaticinjury of the shoulder. The surgical options include the use of screws, sutures or anchors. The use of sutures type FiberTape™ is a frequently used alternative, having no current consensus on the ...
Journal of Bone and Joint Surgery - British Volume, 2012
We tested four types of surgical repair for load to failure and distraction in a bovine model of ... more We tested four types of surgical repair for load to failure and distraction in a bovine model of Achilles tendon repair. A total of 20 fresh bovine Achilles tendons were divided transversely 4 cm proximal to the calcaneal insertion and randomly repaired using the Dresden technique, a Krackow suture, a triple-strand Dresden technique or a modified oblique Dresden technique, all using a Fiberwire suture. Each tendon was loaded to failure. The force applied when a 5 mm gap was formed, peak load to failure, and mechanism of failure were recorded. The resistance to distraction was significantly greater for the triple technique (mean 246.1 N (205 to 309) to initial gapping) than for the Dresden (mean 180 N (152 to 208); p = 0.012) and the Krackow repairs (mean 101 N (78 to 112; p < 0.001). Peak load to failure was significantly greater for the triple-strand repair (mean 675 N (453 to 749)) than for the Dresden (mean 327.8 N (238 to 406); p < 0.001), Krackow (mean 223.6 N (210 to 252); p < 0.001) and oblique repairs (mean 437.2 N (372 to 526); p < 0.001). Failure of the tendon was the mechanism of failure for all specimens except for the tendons sutured using the Krackow technique, where the failure occurred at the knot.
![Research paper thumbnail of [Immediate complications following flexible bronchoscopy: retrospective analysis of 1079 procedures]](https://attachments.academia-assets.com/44005057/thumbnails/1.jpg)
](Revista médica de Chile, 2014
Flexible bronchoscopy is a useful diagnostic tool with a relative low rate of complications. To a... more Flexible bronchoscopy is a useful diagnostic tool with a relative low rate of complications. To analyze post procedure risk of complications after flexible bronchoscopy with transbronchial or bronchial biopsy. The electronic database of a bronchoscopy unit at a general Hospital was analyzed. All procedures performed between 2009 and 2011 were reviewed and complications recorded. The primary outcome measure was the risk for complications defined as the percentage of procedures complicated by hemorrhage, pneumothorax, desaturation < 80% and other complications. We used a logistic regression model to explore the association between each procedure characteristic and complication. One thousand seventy nine procedures were included in the analysis. Eight percent had complications. Among these, the frequency of hemorrhage was 5.9% and pneumothorax was 0.3%. Factors associated with complications were exclusive use of topical anesthesia with an odds ratio (OR) of 1.72 (confidence interval...
Jornal Brasileiro de Pneumologia, 2015
Revista Española de Cirugía Ortopédica y Traumatología (English Edition), 2011
IntroductionThere is no consensus on the optimal treatment of partial tears in the anterior cruci... more IntroductionThere is no consensus on the optimal treatment of partial tears in the anterior cruciate ligaments (ACL). Radiofrequency (RF) has been used to treat ACL partial tears. This treatment can be detrimental to ACL strength.
INVESTIGACIÓN Efecto de la radiofrecuencia en roturas parciales del ligamento cruzado anterior: e... more INVESTIGACIÓN Efecto de la radiofrecuencia en roturas parciales del ligamento cruzado anterior: estudio experimental ex vivo en cerdos Recibido el 16 de noviembre de 2010; aceptado el 20 de marzo de 2011 Disponible en Internet el 2 de junio de 2011 PALABRAS CLAVE LCA; Roturas parciales; Radiofrecuencia; Punto de fallo
Although in most patients the diagnosis of cystic fibrosis (CF) is made during their first years ... more Although in most patients the diagnosis of cystic fibrosis (CF) is made during their first years of life, a proportion of patients is diagnosed during adulthood. To describe the features of adult patients diagnosed with CF. Analysis of medical records of patients diagnosed with CF in a public hospital devoted to respiratory diseases. Demographic, clinical, laboratory and microbiological data were recorded. Fifty eight patients aged 25.4 ± 6.5 years were included. In 40% of them, CF was diagnosed after 15 years of age. The most common mutation found was AF508. Among clinical characteristics, lung involvement, mainly bronchiectasis, was found in 93%. The mean forced expiratory volume in the first second (FEV,) was 65,7 ± 27,1%. Fifteen patients were colonized with Pseudomonas aeruginosa. The main complication seen was hemoptysis, in 12% of patients. Five patients died, mostly due to respiratory distress associated with sepsis, while three were subjected to bilateral lung transplantation. Patients in whom the diagnosis of CF was made after 15 years of age, had lower frequency of AF508 mutation, were most commonly women and had a lower rate of pancreatic involvement. CF is a disease that is increasingly reaching adult population. CF must be suspected in adolescents and young adults who suffer chronic lung diseases such as bronchiectasis, particularly when they are colonized by Pseudomonas aeruginosa, or in patients who develop infections by uncommon organisms.
Respiratory Medicine Case Reports, 2012
A 74 year old female presented with fever, associated with papules and plaque in her upper and lo... more A 74 year old female presented with fever, associated with papules and plaque in her upper and lower extremities. Exams revealed blood leukocytosis and a positive urine culture. Antibiotic therapy was initiated with no clinical response. After 1 week, chest X-ray showed right upper lobe alveolar infiltrate. A skin biopsy of the lesion showed infiltration by neutrophils, consistent with Sweet's Syndrome. Patient's condition progressively worsened, requiring oxygentherapy. Bronchoscopy and bronchoalveolar lavage were normal, transbronchial biopsies suggested lung involvement of Sweet 's syndrome. Antibiotic therapy was stopped. Corticosteroid were started. Therapy resulted in rapid clinical and radiological improvement.
Respiratory Care, 2014
Dendriform pulmonary ossification is a rare condition often diagnosed by either surgery or postmo... more Dendriform pulmonary ossification is a rare condition often diagnosed by either surgery or postmortem examination. We report a 43-y-old man with a history of nonproductive cough for 1 y. His physical examination was unremarkable. Chest computed tomography showed multiple bilateral micronodules in both lower lobes; however, the patient's pulmonary function was normal. Flexible bronchoscopy with transbronchial biopsies revealed branching ossification. Pulmonary ossification is a chronic process characterized by progressive metaplastic ossification. We reviewed a total of 42 cases of dendriform pulmonary ossification reported in the medical literature: most of these cases were diagnosed by autopsy. Despite its rarity, dendriform pulmonary ossification should be considered in the differential diagnosis of diffuse lung disease. Bronchoscopy with transbronchial biopsies must be considered as a potential diagnostic procedure.
Revista ANACEM
Abstract: INTRODUCTION: Acromioclavicular dislocation is a traumaticinjury of the shoulder. The s... more Abstract: INTRODUCTION: Acromioclavicular dislocation is a traumaticinjury of the shoulder. The surgical options include the use of screws, sutures or anchors. The use of sutures type FiberTape™ is a frequently used alternative, having no current consensus on the ...
Journal of Bone and Joint Surgery - British Volume, 2012
We tested four types of surgical repair for load to failure and distraction in a bovine model of ... more We tested four types of surgical repair for load to failure and distraction in a bovine model of Achilles tendon repair. A total of 20 fresh bovine Achilles tendons were divided transversely 4 cm proximal to the calcaneal insertion and randomly repaired using the Dresden technique, a Krackow suture, a triple-strand Dresden technique or a modified oblique Dresden technique, all using a Fiberwire suture. Each tendon was loaded to failure. The force applied when a 5 mm gap was formed, peak load to failure, and mechanism of failure were recorded. The resistance to distraction was significantly greater for the triple technique (mean 246.1 N (205 to 309) to initial gapping) than for the Dresden (mean 180 N (152 to 208); p = 0.012) and the Krackow repairs (mean 101 N (78 to 112; p < 0.001). Peak load to failure was significantly greater for the triple-strand repair (mean 675 N (453 to 749)) than for the Dresden (mean 327.8 N (238 to 406); p < 0.001), Krackow (mean 223.6 N (210 to 252); p < 0.001) and oblique repairs (mean 437.2 N (372 to 526); p < 0.001). Failure of the tendon was the mechanism of failure for all specimens except for the tendons sutured using the Krackow technique, where the failure occurred at the knot.
Revista médica de Chile, 2014
Flexible bronchoscopy is a useful diagnostic tool with a relative low rate of complications. To a... more Flexible bronchoscopy is a useful diagnostic tool with a relative low rate of complications. To analyze post procedure risk of complications after flexible bronchoscopy with transbronchial or bronchial biopsy. The electronic database of a bronchoscopy unit at a general Hospital was analyzed. All procedures performed between 2009 and 2011 were reviewed and complications recorded. The primary outcome measure was the risk for complications defined as the percentage of procedures complicated by hemorrhage, pneumothorax, desaturation < 80% and other complications. We used a logistic regression model to explore the association between each procedure characteristic and complication. One thousand seventy nine procedures were included in the analysis. Eight percent had complications. Among these, the frequency of hemorrhage was 5.9% and pneumothorax was 0.3%. Factors associated with complications were exclusive use of topical anesthesia with an odds ratio (OR) of 1.72 (confidence interval...