Oscar Frisancho - Academia.edu (original) (raw)
Papers by Oscar Frisancho
Revista De Gastroenterologia Del Peru, Oct 1, 2012
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, 2012
La hemoglobinopatía S es un desorden hereditario resultado de una mutación en el gen beta-S que s... more La hemoglobinopatía S es un desorden hereditario resultado de una mutación en el gen beta-S que se expresa con la sustitución de un aminoácido en la cadena beta de globina. El problema se presenta cuando algún sujeto con hemoglobinopatía S se expone a la hipoxia de altura. La disminución de la saturación de oxígeno forma polímeros de Hb S que deforman al glóbulo rojo en forma de "media luna" (célula falciforme o drepanocito). Las células falciformes (rigidas y frágiles) tienden a adherirse a otros glóbulos rojos incrementando la viscosidad y estásis sanguínea, generando oclusión vascular e infarto en los tejidos. El bazo por su tipo de circulación es un órgano susceptible de la crisis falciforme. El infarto esplénico en la altura -en correspondencia a diferentes circunstancias-puede evolucionar en tres etapas: a) Infarto agudo (focal, no complicado), b) infarto masivo (compromiso de mas del 50% del parénquima) y c) infarto con disrupción capsular. El diagnóstico precoz es fundamental, permite la instauración oportuna de diversas medidas, especialmente una adecuada hidratación, oxigenación y rápida evacuación a localidades de menor altitud. Con estas medidas se atenua el fenómeno falciforme y algunos pacientes pueden superar este trance sin mayores complicaciones. El retardo diagnostico conlleva a tomar medidas que incluso pueden exacerbar la hipoxia tisular. Importantes poblaciones de raza negra y mestiza con ancestro africano viven en la costa peruana, 10% y 2% respectivamente tienen hemoglobinopatía S; sujetos de raza blanca con ancestro mediterráneo también pueden portar esta hemoglobina. Es indispensable difundir el conocimiento de esta entidad para que la tengan presente los médicos que laboran en regiones de altura; asimismo es primordial impulsar medidas preventivas para que los individuos con ancestro africano o mediterráneo conozcan su estatus sickle cell antes de viajar a lugares por encima de 2.500 m.
![Research paper thumbnail of Dolicomegacolon andino y vólvulos intestinales de altura: [revisión]](https://attachments.academia-assets.com/48313213/thumbnails/1.jpg)
](Revista De Gastroenterologia Del Peru, Jul 1, 2008
El vólvulo de sigmoides es una emergencia frecuente en los hospitales del área andina, donde repr... more El vólvulo de sigmoides es una emergencia frecuente en los hospitales del área andina, donde representa mas del 50% de todas las obstrucciones intestinales. El Dolicomegacolon Andino (DCMA) y la mesocolonitis retráctil son los principales factores predisponentes del vólvulo; la mesocolonitis aproxima el segmento proximal y distal del asa sigmoidea, favoreciendo su torsión. La ingesta copiosa de alimentos fermentables constituye el factor precipitante del vólvulo; la mayoría de los pacientes son atendidos durante las épocas de cosecha y siembra, períodos en los que aumenta su consumo. Los andinos que viven sobre los 3,000 metros de altura tienen el colon de mayor longitud y diámetro que los habitantes del llano, ésta característica adquirida la llamamos el Dolicomegacolon Andino (DCMA). El alto contenido de fibra dietaria inhibiría el fenómeno histológico denominado elastogénesis, induciendo -a los largo de los años-el megacolon. Otro factor importante sería la menor presión atmosférica en la altura, y de acuerdo a la ley física de Boyle y Mariotte la expansión de los gases intraluminales podría influir en el incremento de las dimensiones intestinales. El DCMA tiene diversas particularidades anatómicas, clínicas, radiológicas, histológicas y serológicas que lo diferencian del megacolon chagásico. Para el tratamiento del vólvulo de sigmoides se pueden intentar procedimientos de emergencia no cruentos como la desvolvulación endoscópica: la reposición de la rotación colónica es útil para disminuir la compresión abdominal y restaurar la circulación sanguínea enteral. El tratamiento quirúrgico de urgencia debe guiarse por la condición general del paciente y el estado del asa colónica en el acto quirúrgico. La mortalidad mantiene índices aún altos, está relacionada a la edad avanzada de los pacientes, al tiempo de evolución de la enfermedad y el estadío de isquemia intestinal. Otros aspectos terapéuticos novedosos como la sigmoidopexia percutánea, sigmoidectomía laparoscópica y la mesosigmoplastía son revisados, ellos tienen indicaciones precisas, además se necesitan series mas amplias para valorarlos mejor. Gastroenterol Perú; 28: 248-257 ABSTRACT Sigmoid volvulus is a frequent cause of emergencies in hospitals in the Andean area, representing more than 50% of all intestinal obstructions. Andean dolichomegacolon (DCMA) and retractile mesocolonitis are the main contribuiting factors for volvulus. The mesocolonitis nears the proximal and distal segment of the sigmoid handle, favoring its torsion. Copious intake of fermentable food is the precipitating factor for volvulus. The majority of patients are seen during sowing and harvest periods, in which the consumption of this type of food increases. Andean people who live at an altitude of 3,000 m have a larger and thicker colon than coastal residents. We call this acquired characteristic the Andean dolichomegacolon (DCMA). A fiber-rich diet may inhibit the histological phenomenon known as elastogenesis, developing -over the years -the megacolon. Another important factor may be the lower atmospheric pressure in the altitude, and according to Boyle and Mariotte's physical law, the expansion of intraluminal gas may have an influence on intestinal enlargement. DCMA has many special anatomic, clinical, radiological, histological and serological features which make it different from the
Rev Gastroenterol Peru, Dec 1, 1998
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, 2012
The hemoglobin S is a consequence of the substitution of valine for glutamic acid at position 6 o... more The hemoglobin S is a consequence of the substitution of valine for glutamic acid at position 6 of beta globin chain. The problem arises when some individuals with Hb S is moved to the mountains and exposed to hypoxia. The decrease in oxygen saturation distorts the red blood cell with HbS-shaped crescent (sickle cell). Sickle cell (rigid and fragile) tends to adhere to the other red blood cells, generating a series of intravascular alterations that can lead to tissue ischemia or infarction. The spleen by type of movement and lack of lateral communications between the branches of the splenic artery was the most susceptible to sickle cell crisis. Splenic infarction at altitude corresponding to different circumstances can evolve in three stages: a) Acute (focal, uncomplicated), b) massive attack (more than 50% of parenchyma) and c) spontaneous rupture.Early diagnosis is crucial, allowing the quick and timely introduction of various measures, including adequate hydration and oxygenation continues until its evacuation to lower altitude locations. These measures would reduce the phenomenon of sickle and some patients may overcome this acute trance without major complications. The delay in diagnosis leads to action that can exacerbate tissue hypoxia and cause ischemia or infarction of various organs. A large population of black and mixed race of African descent living in the Peruvian coast, 10% and 2% respectively have hemoglobin S; Caucasian subjects with Mediterranean ancestry this hemoglobin also can carry. It is therefore essential to disseminate within the clinicians working in regions of high status and to thus prevent potentially fatal complications in patients with Hb S; is also essential to promote preventive measures for individuals with African or Mediterranean ancestry know their sickle cell status before traveling to places above 2,500 m.
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, Oct 1, 2012
OBJECTIVE: To determine the clinical, radiological, histopathological manifestations and survival... more OBJECTIVE: To determine the clinical, radiological, histopathological manifestations and survival of patients with gastrointestinal stromal tumor (GIST) in the National Hospital Edgardo Rebagliati Martins (HNERM) from Lima, Perú.MATERIAL AND METHODS: This is a descriptive and retrospective study, which was based on the medical records of 103 patients with confirmed GIST with immunohistochemical. All the patients were evaluated and treated at the HNERM, from January 2002 until December 2010.RESULTS: In 103 patients between 30 and 88 years the average age was 64 years. The tumor was more frequent in females (52%). The mean disease duration was 7 months. The most frequent form of presentation was gastrointestinal bleeding (48.3%). The diagnosis was made more by endoscopy (50.5%). The prevalence of GISTs by organs was more frequent in stomach (56.3%). The average size of the tumors was 98 mm, 49% had a size between 50 mm and 100 mm, the largest tumor was 260 mm. Tumor stage more frequent was localized (70:9%). GIST associated with another cancer was 9.7% of patients. The predominant histologic pattern was fusiform (73.8%). The 84.5% had low mitotic index. Immunohistochemistry showed expression KIT (CD 117) was 94.17%, CD34 77.5%, Vimentin 96.6%, NSE 84.9%, alpha actin 52.7%, CD56 44.4%, S-100 32.3% and Actin 20%. The tomographic characteristic more frequent was heterogeneous tumor (43.6%).The distribution according to risk classification was: very low risk 3.9%, low risk 28.2, intermediate risk 37.7% and high risk 30.1%. Complete surgical resection was performed in 87.4% of patients and 4.9% of patients received imatinib. The cumulative overall survival at 5 years was 31.07%. In bivariate analysis statistical association was found between surviving with: no presence of cancer associated p = 0.004, CD 34 p = 0.01, low mitotic index p = 0.00 and received surgical treatment p = 0.000. In multivariate analysis one found statistical association of longer survival with smaller tumor size p = 0.015 (CI -3.67, -0.41), localized tumor stage p = 0.036 (CI -5.83, -0.19), lower mitotic index p = 0.038 (CI -0.86, 0.02), asymptomatic patient p=0.009 (CI 1.25, 8.62), no tumor recurrence p = 0.01 (CI -8.49, -1.17), and no metastasis p = 0.001 (CI 2.66, 10.62).CONCLUSIONS: The results of our study were similar to what was reported in international literature. Factors that were associated with longer survival were receiving surgical treatment, patients with smaller tumor size, tumor stage localized, low mitotic index, asymptomatic patient, not tumor recurrence, not metastasis and no cancer associated.
Revista de gastroenterología del Perú : órgano oficial de la Sociedad de Gastroenterología del Perú
Gastrointestinal Stromal Tumors (GIST) are lesions which origin from Intersticial Cells of Cajal ... more Gastrointestinal Stromal Tumors (GIST) are lesions which origin from Intersticial Cells of Cajal that may be asymptomatic or cause complications like digestive bleeding or malignant transformation. To determine the clinical, endoscopic and histological profile, as well as the main demographic features of patients with GIST in Hospital Edgardo Rebagliati (Lima-Perú) from January 2002 to December 2004. Descriptive, transversal and retrospective study in which we reviewed clinical and anatomopathological archives from 34 patients with GIST during the above mentioned period. The collected data were placed on a sheet of recollection. There was male predominance (58.82%).The most affected age group was 71-80 years old (26.47%). The average age was 64.7 years old. The most frequent clinical presentation was abdominal pain (47.06%) followed by melena (44.12%). Diagnosis was made by endoscopic method in 58.82%. The main histological type was spindle (47.06%). There was high risk of malignanc...
Revista de gastroenterología del Perú : órgano oficial de la Sociedad de Gastroenterología del Perú
Sigmoid volvulus is a frequent cause of emergencies in hospitals in the Andean area, representing... more Sigmoid volvulus is a frequent cause of emergencies in hospitals in the Andean area, representing more than 50% of all intestinal obstructions. Andean dolichomegacolon (DCMA) and retractile mesocolonitis are the main contributing factors for volvulus. The mesocolonitis nears the proximal and distal segment of the sigmoid handle, favoring its torsion. Copious intake of fermentable food is the precipitating factor for volvulus. The majority of patients are seen during sowing and harvest periods, in which the consumption of this type of food increases. Andean people who live at an altitude of 3,000 m have a larger and thicker colon than coastal residents. We call this acquired characteristic the Andean dolichomegacolon (DCMA). A fiber-rich diet may inhibit the histological phenomenon known as elastogenesis, developing--over the years--the megacolon. Another important factor may be the lower atmospheric pressure in the altitude, and according to Boyle and Mariotte's physical law, th...
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, Feb 1, 1998
INTRODUCTION: Tuberculosis is a common disease in Peru.Although there is evidence of the decrease... more INTRODUCTION: Tuberculosis is a common disease in Peru.Although there is evidence of the decrease in lung infections, abdominaltuberculosis and other extrapulmonary varieties show an increase in incidence. This study was performed in order lo determine incidence, clinical picture, diagnostic methods and procedures, compromised tissues and organs and treatment given to patients with Digestive Tuberculosis in the Hospitalization Area of the Digestive Disease Department of the Peruvian "Edgard Rebagliati Martins" Hospital in Lima-Peru, a 1-500 bed Center. METHODS: 77 clinical records were reviewed, of patients discharged and diagnosed with Abdominal or Digestive Tuberculosis between January 1993 to May 1998. Fifty eight of these records fuifilled the requirements. Results: The mean duration of symptoms was 5.49 months. The clinical characteristics are unspecific. The most frequent symptoms were weight loss, chronic diarrhea, abdominal pain and fever (over 70% of cases). The most common signs were abdominal pain, ascites and cachexia in more than 50% of the cases. The Laboratory tests are typical for chronic diseases and emphasize the erythrocite sedimentation rate that was high in 98% of cases. Adenosin Deaminase Assay (ADA) in ascific fluid was high in 95% of cases when peritoneal compromise was present and fluid could be obtained. The Radiology tests such as barium colon enema and intestinal transit tests were helpful together with Ultrasound and Computerized Tomography in detecting the intestinal location of the disease, the organs that had been affected as well assisting as to the decision to perform further invasive tests. We found 27.58% with gastrointestinal location, 43% with only peritoneal affection and 27.58% of mixed forms (gastrointestinal plus peritoneal). The endoscopic procedures have been decisive for the diagnosis of up to 90% of cases and Laparascopy has been of value, in up to 70% of the cases, for the detection of peritoneal affection. Six patients of our series have required exploratory Laparascopy for diagnosis. Treatment has been effective in 86% of cases. CONCLUSION: The diagnosis of Digestive Tuberculosis continues to be long, tedious and expensive. The incidence of this disease has increased in our Hospitalization Center since 1993. All cases reviewed require invasive procedures (endoscopic) or surgery for their final diagnosis. We emphasize the use of Laparoscopy tests for the evaluation of p0eritoneal affection.
Rev. gastroenterol. …, 1986
Rev. gastroenterol. …, 1994
Medical Journal Armed Forces India, 2003
We present the case of a 63 year male patient, natural from Lima. He has been in a cattle zone se... more We present the case of a 63 year male patient, natural from Lima. He has been in a cattle zone seven years ago. His illness had an insidious start and a progressive course; from a month ago he had malaise associated with nausea, abdominal distention and occasional vomiting; denies weight loss. In the clinical examination was lucid and stable, and without jaundice. The abdomen was soft without signs of peritoneal irritation; in the left flank there was a large mass with defined limits, painless, attached to deeper layers. Auxiliary tests: CBC: eosinophils 5.74%; the levels coagulation, biochemistry and electrolytes were normal. Total protein, albumin, bilirubin levels, aminotransferasas (ALT an AST) and alkaline phosphatase were normals. Arco V: 248 (N<22) and positive Inmunoblot to Echinococcus granulosus. Abdominal ultrasound showed two cystic formations of 161 x 95 mm and 146 x 130 mm, that moving the left kidney and spleen. Axial tomography was interpreted as a large ovoid formation (12 x 18 x 27 cm) dependent on spleen, lobed, hypodense, with rounded focal areas with less attenuation in the peripheral area; without contrast enhancement, compatible with hydatid cyst Gharbi III. The surgical intervention was a partial cystectomy plus external drainage; the surgeon found a giant splenic hydatid cyst, occupied the left hypochondrium and the left flank; had thick walls, daughter vesicles and clear liquid inside. The cystic lesion was attached to the descending colon, stomach, and left diaphargm. We present this case because the splenic hydatid cyst is rare, even less as a single site, and their prevalence does not exceed 1 %.
Rev Gastroenterol Peru, Mar 1, 1987
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, Apr 1, 2012
A 39-year-old woman was admitted to our hospital with an eight-month history of dyspnea on exerti... more A 39-year-old woman was admitted to our hospital with an eight-month history of dyspnea on exertion, weakness and increasing fatigue. She reported repeated episodes of menometrorrhagia and underwent a myomectomy. She is not a vegetarian. Her menstrual bleeding: 3-5 days per month. Two months ago, she complained of burning sensation of the tongue upon swallowing food and noted brittle nails. She tolerated soft foods. On physical examination, she was pale; her nails were very thin, fragile and somewhat concave. Her oral examination showed angular stomatitis, depapillated tongue and glossitis. The clinical diagnosis was anemia and dysphagia. Laboratory tests were: Hb: 7.0g/dL, MCV: 57.42fL, MCH: 15.82 pg; leukocytes: 4,980; reticulocytes: 2.18%, reticulocyte index: 0.1%, serum iron: 21ug/dl, total iron binding capacity (TIBC): 286, transferrin saturation: 7% and serum ferritin: 27ng/ml. The peripheral blood smear showed anisocytosis and hypochromic microcytic cells. Thevenon test was negative. Abdominal ultrasound: uterine myoma. A barium swallow X-ray showed a 2-mm linear filling defect between the 4th and 5th cervical vertebrae in the anteroposterior and lateral view; it protruded from the anterior wall and reduced esophageal lumen by 60%. In the endoscopy, we found a fibrous web in the cricopharyngeal area. Serial dilatations were performed over a guidewire using Savary-Gilliard dilators with diameter up to 14 mm, improving dysphagia. She was treated with transfusional therapy and parenteral iron. She was discharged with ferrous sulfate and folic acid. The Plummer-Vinson syndrome, Paterson-Brown-Kelly or sideropenic dysphagia is characterized by dysphagia, irondeficiency anemia and upper esophageal web. The syndrome is described as very rare.
Bol Soc Peru Med Interna, 1995
Revista De Gastroenterologia Del Peru, 2010
Rev Gastroenterol Peru, Mar 1, 1987
Rev Gastroenterol Peru, Mar 1, 1985
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, Jul 1, 2011
Revista De Gastroenterologia Del Peru, Oct 1, 2012
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, 2012
La hemoglobinopatía S es un desorden hereditario resultado de una mutación en el gen beta-S que s... more La hemoglobinopatía S es un desorden hereditario resultado de una mutación en el gen beta-S que se expresa con la sustitución de un aminoácido en la cadena beta de globina. El problema se presenta cuando algún sujeto con hemoglobinopatía S se expone a la hipoxia de altura. La disminución de la saturación de oxígeno forma polímeros de Hb S que deforman al glóbulo rojo en forma de "media luna" (célula falciforme o drepanocito). Las células falciformes (rigidas y frágiles) tienden a adherirse a otros glóbulos rojos incrementando la viscosidad y estásis sanguínea, generando oclusión vascular e infarto en los tejidos. El bazo por su tipo de circulación es un órgano susceptible de la crisis falciforme. El infarto esplénico en la altura -en correspondencia a diferentes circunstancias-puede evolucionar en tres etapas: a) Infarto agudo (focal, no complicado), b) infarto masivo (compromiso de mas del 50% del parénquima) y c) infarto con disrupción capsular. El diagnóstico precoz es fundamental, permite la instauración oportuna de diversas medidas, especialmente una adecuada hidratación, oxigenación y rápida evacuación a localidades de menor altitud. Con estas medidas se atenua el fenómeno falciforme y algunos pacientes pueden superar este trance sin mayores complicaciones. El retardo diagnostico conlleva a tomar medidas que incluso pueden exacerbar la hipoxia tisular. Importantes poblaciones de raza negra y mestiza con ancestro africano viven en la costa peruana, 10% y 2% respectivamente tienen hemoglobinopatía S; sujetos de raza blanca con ancestro mediterráneo también pueden portar esta hemoglobina. Es indispensable difundir el conocimiento de esta entidad para que la tengan presente los médicos que laboran en regiones de altura; asimismo es primordial impulsar medidas preventivas para que los individuos con ancestro africano o mediterráneo conozcan su estatus sickle cell antes de viajar a lugares por encima de 2.500 m.
Revista De Gastroenterologia Del Peru, Jul 1, 2008
El vólvulo de sigmoides es una emergencia frecuente en los hospitales del área andina, donde repr... more El vólvulo de sigmoides es una emergencia frecuente en los hospitales del área andina, donde representa mas del 50% de todas las obstrucciones intestinales. El Dolicomegacolon Andino (DCMA) y la mesocolonitis retráctil son los principales factores predisponentes del vólvulo; la mesocolonitis aproxima el segmento proximal y distal del asa sigmoidea, favoreciendo su torsión. La ingesta copiosa de alimentos fermentables constituye el factor precipitante del vólvulo; la mayoría de los pacientes son atendidos durante las épocas de cosecha y siembra, períodos en los que aumenta su consumo. Los andinos que viven sobre los 3,000 metros de altura tienen el colon de mayor longitud y diámetro que los habitantes del llano, ésta característica adquirida la llamamos el Dolicomegacolon Andino (DCMA). El alto contenido de fibra dietaria inhibiría el fenómeno histológico denominado elastogénesis, induciendo -a los largo de los años-el megacolon. Otro factor importante sería la menor presión atmosférica en la altura, y de acuerdo a la ley física de Boyle y Mariotte la expansión de los gases intraluminales podría influir en el incremento de las dimensiones intestinales. El DCMA tiene diversas particularidades anatómicas, clínicas, radiológicas, histológicas y serológicas que lo diferencian del megacolon chagásico. Para el tratamiento del vólvulo de sigmoides se pueden intentar procedimientos de emergencia no cruentos como la desvolvulación endoscópica: la reposición de la rotación colónica es útil para disminuir la compresión abdominal y restaurar la circulación sanguínea enteral. El tratamiento quirúrgico de urgencia debe guiarse por la condición general del paciente y el estado del asa colónica en el acto quirúrgico. La mortalidad mantiene índices aún altos, está relacionada a la edad avanzada de los pacientes, al tiempo de evolución de la enfermedad y el estadío de isquemia intestinal. Otros aspectos terapéuticos novedosos como la sigmoidopexia percutánea, sigmoidectomía laparoscópica y la mesosigmoplastía son revisados, ellos tienen indicaciones precisas, además se necesitan series mas amplias para valorarlos mejor. Gastroenterol Perú; 28: 248-257 ABSTRACT Sigmoid volvulus is a frequent cause of emergencies in hospitals in the Andean area, representing more than 50% of all intestinal obstructions. Andean dolichomegacolon (DCMA) and retractile mesocolonitis are the main contribuiting factors for volvulus. The mesocolonitis nears the proximal and distal segment of the sigmoid handle, favoring its torsion. Copious intake of fermentable food is the precipitating factor for volvulus. The majority of patients are seen during sowing and harvest periods, in which the consumption of this type of food increases. Andean people who live at an altitude of 3,000 m have a larger and thicker colon than coastal residents. We call this acquired characteristic the Andean dolichomegacolon (DCMA). A fiber-rich diet may inhibit the histological phenomenon known as elastogenesis, developing -over the years -the megacolon. Another important factor may be the lower atmospheric pressure in the altitude, and according to Boyle and Mariotte's physical law, the expansion of intraluminal gas may have an influence on intestinal enlargement. DCMA has many special anatomic, clinical, radiological, histological and serological features which make it different from the
Rev Gastroenterol Peru, Dec 1, 1998
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, 2012
The hemoglobin S is a consequence of the substitution of valine for glutamic acid at position 6 o... more The hemoglobin S is a consequence of the substitution of valine for glutamic acid at position 6 of beta globin chain. The problem arises when some individuals with Hb S is moved to the mountains and exposed to hypoxia. The decrease in oxygen saturation distorts the red blood cell with HbS-shaped crescent (sickle cell). Sickle cell (rigid and fragile) tends to adhere to the other red blood cells, generating a series of intravascular alterations that can lead to tissue ischemia or infarction. The spleen by type of movement and lack of lateral communications between the branches of the splenic artery was the most susceptible to sickle cell crisis. Splenic infarction at altitude corresponding to different circumstances can evolve in three stages: a) Acute (focal, uncomplicated), b) massive attack (more than 50% of parenchyma) and c) spontaneous rupture.Early diagnosis is crucial, allowing the quick and timely introduction of various measures, including adequate hydration and oxygenation continues until its evacuation to lower altitude locations. These measures would reduce the phenomenon of sickle and some patients may overcome this acute trance without major complications. The delay in diagnosis leads to action that can exacerbate tissue hypoxia and cause ischemia or infarction of various organs. A large population of black and mixed race of African descent living in the Peruvian coast, 10% and 2% respectively have hemoglobin S; Caucasian subjects with Mediterranean ancestry this hemoglobin also can carry. It is therefore essential to disseminate within the clinicians working in regions of high status and to thus prevent potentially fatal complications in patients with Hb S; is also essential to promote preventive measures for individuals with African or Mediterranean ancestry know their sickle cell status before traveling to places above 2,500 m.
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, Oct 1, 2012
OBJECTIVE: To determine the clinical, radiological, histopathological manifestations and survival... more OBJECTIVE: To determine the clinical, radiological, histopathological manifestations and survival of patients with gastrointestinal stromal tumor (GIST) in the National Hospital Edgardo Rebagliati Martins (HNERM) from Lima, Perú.MATERIAL AND METHODS: This is a descriptive and retrospective study, which was based on the medical records of 103 patients with confirmed GIST with immunohistochemical. All the patients were evaluated and treated at the HNERM, from January 2002 until December 2010.RESULTS: In 103 patients between 30 and 88 years the average age was 64 years. The tumor was more frequent in females (52%). The mean disease duration was 7 months. The most frequent form of presentation was gastrointestinal bleeding (48.3%). The diagnosis was made more by endoscopy (50.5%). The prevalence of GISTs by organs was more frequent in stomach (56.3%). The average size of the tumors was 98 mm, 49% had a size between 50 mm and 100 mm, the largest tumor was 260 mm. Tumor stage more frequent was localized (70:9%). GIST associated with another cancer was 9.7% of patients. The predominant histologic pattern was fusiform (73.8%). The 84.5% had low mitotic index. Immunohistochemistry showed expression KIT (CD 117) was 94.17%, CD34 77.5%, Vimentin 96.6%, NSE 84.9%, alpha actin 52.7%, CD56 44.4%, S-100 32.3% and Actin 20%. The tomographic characteristic more frequent was heterogeneous tumor (43.6%).The distribution according to risk classification was: very low risk 3.9%, low risk 28.2, intermediate risk 37.7% and high risk 30.1%. Complete surgical resection was performed in 87.4% of patients and 4.9% of patients received imatinib. The cumulative overall survival at 5 years was 31.07%. In bivariate analysis statistical association was found between surviving with: no presence of cancer associated p = 0.004, CD 34 p = 0.01, low mitotic index p = 0.00 and received surgical treatment p = 0.000. In multivariate analysis one found statistical association of longer survival with smaller tumor size p = 0.015 (CI -3.67, -0.41), localized tumor stage p = 0.036 (CI -5.83, -0.19), lower mitotic index p = 0.038 (CI -0.86, 0.02), asymptomatic patient p=0.009 (CI 1.25, 8.62), no tumor recurrence p = 0.01 (CI -8.49, -1.17), and no metastasis p = 0.001 (CI 2.66, 10.62).CONCLUSIONS: The results of our study were similar to what was reported in international literature. Factors that were associated with longer survival were receiving surgical treatment, patients with smaller tumor size, tumor stage localized, low mitotic index, asymptomatic patient, not tumor recurrence, not metastasis and no cancer associated.
Revista de gastroenterología del Perú : órgano oficial de la Sociedad de Gastroenterología del Perú
Gastrointestinal Stromal Tumors (GIST) are lesions which origin from Intersticial Cells of Cajal ... more Gastrointestinal Stromal Tumors (GIST) are lesions which origin from Intersticial Cells of Cajal that may be asymptomatic or cause complications like digestive bleeding or malignant transformation. To determine the clinical, endoscopic and histological profile, as well as the main demographic features of patients with GIST in Hospital Edgardo Rebagliati (Lima-Perú) from January 2002 to December 2004. Descriptive, transversal and retrospective study in which we reviewed clinical and anatomopathological archives from 34 patients with GIST during the above mentioned period. The collected data were placed on a sheet of recollection. There was male predominance (58.82%).The most affected age group was 71-80 years old (26.47%). The average age was 64.7 years old. The most frequent clinical presentation was abdominal pain (47.06%) followed by melena (44.12%). Diagnosis was made by endoscopic method in 58.82%. The main histological type was spindle (47.06%). There was high risk of malignanc...
Revista de gastroenterología del Perú : órgano oficial de la Sociedad de Gastroenterología del Perú
Sigmoid volvulus is a frequent cause of emergencies in hospitals in the Andean area, representing... more Sigmoid volvulus is a frequent cause of emergencies in hospitals in the Andean area, representing more than 50% of all intestinal obstructions. Andean dolichomegacolon (DCMA) and retractile mesocolonitis are the main contributing factors for volvulus. The mesocolonitis nears the proximal and distal segment of the sigmoid handle, favoring its torsion. Copious intake of fermentable food is the precipitating factor for volvulus. The majority of patients are seen during sowing and harvest periods, in which the consumption of this type of food increases. Andean people who live at an altitude of 3,000 m have a larger and thicker colon than coastal residents. We call this acquired characteristic the Andean dolichomegacolon (DCMA). A fiber-rich diet may inhibit the histological phenomenon known as elastogenesis, developing--over the years--the megacolon. Another important factor may be the lower atmospheric pressure in the altitude, and according to Boyle and Mariotte's physical law, th...
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, Feb 1, 1998
INTRODUCTION: Tuberculosis is a common disease in Peru.Although there is evidence of the decrease... more INTRODUCTION: Tuberculosis is a common disease in Peru.Although there is evidence of the decrease in lung infections, abdominaltuberculosis and other extrapulmonary varieties show an increase in incidence. This study was performed in order lo determine incidence, clinical picture, diagnostic methods and procedures, compromised tissues and organs and treatment given to patients with Digestive Tuberculosis in the Hospitalization Area of the Digestive Disease Department of the Peruvian "Edgard Rebagliati Martins" Hospital in Lima-Peru, a 1-500 bed Center. METHODS: 77 clinical records were reviewed, of patients discharged and diagnosed with Abdominal or Digestive Tuberculosis between January 1993 to May 1998. Fifty eight of these records fuifilled the requirements. Results: The mean duration of symptoms was 5.49 months. The clinical characteristics are unspecific. The most frequent symptoms were weight loss, chronic diarrhea, abdominal pain and fever (over 70% of cases). The most common signs were abdominal pain, ascites and cachexia in more than 50% of the cases. The Laboratory tests are typical for chronic diseases and emphasize the erythrocite sedimentation rate that was high in 98% of cases. Adenosin Deaminase Assay (ADA) in ascific fluid was high in 95% of cases when peritoneal compromise was present and fluid could be obtained. The Radiology tests such as barium colon enema and intestinal transit tests were helpful together with Ultrasound and Computerized Tomography in detecting the intestinal location of the disease, the organs that had been affected as well assisting as to the decision to perform further invasive tests. We found 27.58% with gastrointestinal location, 43% with only peritoneal affection and 27.58% of mixed forms (gastrointestinal plus peritoneal). The endoscopic procedures have been decisive for the diagnosis of up to 90% of cases and Laparascopy has been of value, in up to 70% of the cases, for the detection of peritoneal affection. Six patients of our series have required exploratory Laparascopy for diagnosis. Treatment has been effective in 86% of cases. CONCLUSION: The diagnosis of Digestive Tuberculosis continues to be long, tedious and expensive. The incidence of this disease has increased in our Hospitalization Center since 1993. All cases reviewed require invasive procedures (endoscopic) or surgery for their final diagnosis. We emphasize the use of Laparoscopy tests for the evaluation of p0eritoneal affection.
Rev. gastroenterol. …, 1986
Rev. gastroenterol. …, 1994
Medical Journal Armed Forces India, 2003
We present the case of a 63 year male patient, natural from Lima. He has been in a cattle zone se... more We present the case of a 63 year male patient, natural from Lima. He has been in a cattle zone seven years ago. His illness had an insidious start and a progressive course; from a month ago he had malaise associated with nausea, abdominal distention and occasional vomiting; denies weight loss. In the clinical examination was lucid and stable, and without jaundice. The abdomen was soft without signs of peritoneal irritation; in the left flank there was a large mass with defined limits, painless, attached to deeper layers. Auxiliary tests: CBC: eosinophils 5.74%; the levels coagulation, biochemistry and electrolytes were normal. Total protein, albumin, bilirubin levels, aminotransferasas (ALT an AST) and alkaline phosphatase were normals. Arco V: 248 (N<22) and positive Inmunoblot to Echinococcus granulosus. Abdominal ultrasound showed two cystic formations of 161 x 95 mm and 146 x 130 mm, that moving the left kidney and spleen. Axial tomography was interpreted as a large ovoid formation (12 x 18 x 27 cm) dependent on spleen, lobed, hypodense, with rounded focal areas with less attenuation in the peripheral area; without contrast enhancement, compatible with hydatid cyst Gharbi III. The surgical intervention was a partial cystectomy plus external drainage; the surgeon found a giant splenic hydatid cyst, occupied the left hypochondrium and the left flank; had thick walls, daughter vesicles and clear liquid inside. The cystic lesion was attached to the descending colon, stomach, and left diaphargm. We present this case because the splenic hydatid cyst is rare, even less as a single site, and their prevalence does not exceed 1 %.
Rev Gastroenterol Peru, Mar 1, 1987
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, Apr 1, 2012
A 39-year-old woman was admitted to our hospital with an eight-month history of dyspnea on exerti... more A 39-year-old woman was admitted to our hospital with an eight-month history of dyspnea on exertion, weakness and increasing fatigue. She reported repeated episodes of menometrorrhagia and underwent a myomectomy. She is not a vegetarian. Her menstrual bleeding: 3-5 days per month. Two months ago, she complained of burning sensation of the tongue upon swallowing food and noted brittle nails. She tolerated soft foods. On physical examination, she was pale; her nails were very thin, fragile and somewhat concave. Her oral examination showed angular stomatitis, depapillated tongue and glossitis. The clinical diagnosis was anemia and dysphagia. Laboratory tests were: Hb: 7.0g/dL, MCV: 57.42fL, MCH: 15.82 pg; leukocytes: 4,980; reticulocytes: 2.18%, reticulocyte index: 0.1%, serum iron: 21ug/dl, total iron binding capacity (TIBC): 286, transferrin saturation: 7% and serum ferritin: 27ng/ml. The peripheral blood smear showed anisocytosis and hypochromic microcytic cells. Thevenon test was negative. Abdominal ultrasound: uterine myoma. A barium swallow X-ray showed a 2-mm linear filling defect between the 4th and 5th cervical vertebrae in the anteroposterior and lateral view; it protruded from the anterior wall and reduced esophageal lumen by 60%. In the endoscopy, we found a fibrous web in the cricopharyngeal area. Serial dilatations were performed over a guidewire using Savary-Gilliard dilators with diameter up to 14 mm, improving dysphagia. She was treated with transfusional therapy and parenteral iron. She was discharged with ferrous sulfate and folic acid. The Plummer-Vinson syndrome, Paterson-Brown-Kelly or sideropenic dysphagia is characterized by dysphagia, irondeficiency anemia and upper esophageal web. The syndrome is described as very rare.
Bol Soc Peru Med Interna, 1995
Revista De Gastroenterologia Del Peru, 2010
Rev Gastroenterol Peru, Mar 1, 1987
Rev Gastroenterol Peru, Mar 1, 1985
Revista De Gastroenterologia Del Peru Organo Oficial De La Sociedad De Gastroenterologia Del Peru, Jul 1, 2011