Browsing by Author "Llanos, Osvaldo"

Now showing 1 - 7 of 7
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    Bouveret syndrome.: Report of four cases
    (2008) Iniguez, Armando; Butte, Jean Michel; Zuniga, Jose Miguel; Crovari, Fernando; Llanos, Osvaldo
    Background: Bouveret sYndrome is a duodenal obstruction caused by a biliary stone, Aim: To report patients with Bouveret syndrome. Material and Methods: Retrospective review of medical records of patients with Bouveret syndrome treated between. 1976 and 2006. Results. We report three women and one man with a mean age of 62.5 years. None bad a previous diagnosis of cholelithiasis. All presented with colicky pain in the right upper quadrant and vomiting, suggesting gastric retention. The diagnosis was suspected after a barium meal in two patients and with a CT scan or. the other two. Tbe endoscopical extraction or fragmentation of stones was attempted in three patients but was succesful only in one. Three patients were operated and a stone impacted in the first portion of the duodenum was identified, along with a cholecystodudenal fistula. A duodenostomy and stone extraction was performed. One patient was subjected to a cholecystectomy, fistula repair and gastrojejunoanastomosis. No patient died and all were discharged within. 8 to 12 days after surgery. Conclusions: Bouveret sYndrome is an uncommon complication of cholelithiasis. Endoscopy can be diagnostic and therapeutic. Surgery is the other therapeutic option.
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    Cervical metastases of glucagonoma in a patient with multiple endocrine neoplasia type 1: Report of a case
    (2008) Butte, Jean M.; Montero, Pablo H.; Solar, Antonieta; Torres, Javiera; Olmos, Pablo R.; Goni, Ignacio; Quintana, Juan C.; Martinez, Jorge; Llanos, Osvaldo
    Multiple endocrine neoplasia type 1 (MEN 1) is a syndrome characterized by tumors of the parathyroid glands, pancreatic islet cells, duodenum, and pituitary gland. We report a case of cervical metastases of glucagonoma with MEN 1. The patient was a 34-year-old woman admitted to our hospital with epigastric pain. Her medical history included two resections of prolactinoma and two upper GI hemorrhages secondary to duodenal ulcers. Computed tomography (CT) showed two hypervascular lesions in the tail of the pancreas and cervical ultrasound showed multiple hypoechogenic ovoid images in the neck. A cervical CT scan confirmed two 15-mm lymph nodes in the left cervical region and 111In-DOTATOC imaging showed focal abnormal somatostatin expression in the pancreatic tail and the cervical nodes. The patient had asymptomatic hypoglycemic episodes, with blood sugar levels as low as 30 mg/dl, which raised our suspicion of MEN 1 associated with pancreatic insulinoma. Thus, we performed a distal pancreatectomy with bilateral cervical dissection and parathyroid gland resection. Histopathological examination revealed 12 pancreatic tumors as well as metastases in four cervical lymph nodes. The resected parathyroid glands had normal structure, suggesting parathyroid hyperplasia. A follow-up CT scan, 18 months after surgery, showed new tumors in the head of the pancreas and in the duodenal wall. A pancreatoduodenectomy was performed and histopathological examination revealed nine nonfunctioning endocrine tumors in the pancreas, one tumor in the duodenal wall, and metastases in two peripancreatic lymph nodes. The patient recovered well and remains asymptomatic.
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    Effects of Prone Positioning on Lung Protection in Patients with Acute Respiratory Distress Syndrome
    (2013) Cornejo, Rodrigo A.; Díaz, Juan C.; Tobar, Eduardo A.; Bruhn, Alejandro; Ramos, Cristóbal A.; González, Roberto A.; Repetto, Claudia A.; Romero, Carlos M.; Gálvez, Luis R.; Llanos, Osvaldo; Arellano, Daniel H.; Neira, Wilson R.; Díaz Ulloa, Gonzalo Alberto; Zamorano, Aníbal J.; Pereira, Gonzalo L.
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    Intra-abdominal hypertension: Incidence and association with organ dysfunction during early septic shock
    (W B SAUNDERS CO-ELSEVIER INC, 2008) Regueira, Tomas; Bruhn, Alejandro; Hasbun, Pablo; Aguirre, Marcia; Romero, Carlos; Llanos, Osvaldo; Castro, Ricardo; Bugedo, Guillermo; Hernandez, Glenn
    Purpose: The objective of this article is to study the cumulative incidence of intra-abdominal hypertension (IAH) in septic shock (SS) patients during the first 72 hours of intensive care unit (ICU) admission and to determine if the presence and severity of IAH are associated with sepsis morbidity and mortality.
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    Long-term survival in carcionoid tumour of the appendix. An analysis of 8903 appendectomies
    (ELSEVIER DOYMA SL, 2009) Michel Butte, Jean; Angelica Garcia Huidobro, Maria; Torres, Javiera; Duarte, Ignacio; Zuniga, Alvaro; Llanos, Osvaldo
    Introduction: Appendiceal carcinoids are the most frequent tumors of the appendix and are usually detected as an incidental finding in the final pathology report. The aim of this study was to evaluate the clinical and pathological characteristics, surgical treatment and long-term survival in patients with an appendiceal carcinoid tumor.
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