Andraus

About Dr Wellington Andraus

This author Dr Wellington Andraus has created 62 entries.

Hypoxia among patients on the liver-transplant waiting list

INTRODUCTION Hepatopulmonary syndrome (HPS) is defined as clinical triad of liver disease, intrapulmonary vascular dilatation and hypoxemia. It is present in 4-32% of patients with cirrhosis. Its pathogenesis is not well defined, but it is speculated that a combination of factors, such as an imbalance in the response of vascular endothelin receptors, pulmonary microvascular remodeling and genetic predisposition, leads to intrapulmonary vascular dilatation and bacterial translocation14 Initially the hypoxemia in these patients responds to low-flow supplemental

Atividade da mieloperoxidase está aumentada na síndrome hepatopulmonar em ratos

INTRODUÇÃO Síndrome hepatopulmonar (SHP) é formada pela entidade clínica composta por uma tríade: doença hepática crônica, dilatação vascular intrapulmonar e alteração nos gases arteriais. Esta condição está presente em 4% a 32% dos pacientes com cirrose. A sua fisiopatogênese não está bem definida, mas especula-se uma combinação de fatores, tais como o desequilíbrio na resposta dos receptores de endotelina, a remodelação microvascular pulmonar e predisposição genética, levando à dilatação vascular intrapulmonar e translocação

End-to-End Renal Vein Anastomosis to Preserve Renal Venous Drainage Following Inferior Vena Cava Radical Resection due to Leiomyosarcoma

Background When retrohepatic inferior vena cava (IVC) resection is required, for example, for IVC leiomyosarcoma, reconstruction is recommended. This is particularly true when the renal vein confluence is resected to preserve venous outflow, including that of the right kidney. Methods Two patients with retrohepatic IVC leiomyosarcoma involving renal vein confluences underwent hepatectomy with en bloc IVC resection below the renal vein confluence. IVC reconstruction was not performed, but end-to-end renal vein anastomoses were, including a prosthetic graft in 1 case. Results The postoperative course was

Simultaneous laparoscopic resection of primary colorectal cancer and associated liver metastases: a systematic review

As many as 25 % of colorectal cancer (CRC) patients have liver metastases at presentation. However, the optimal strategy for resectable synchronous colorectal liver metastasis remains controversial. Despite the increasing use of laparoscopy in colorectal and liver resections, combined laparoscopic resection of the primary CRC and synchronous liver metastasis is rarely performed. The potential benefits of this approach are the possibility to perform a radical operation with small incisions, earlier recovery, and reduction in costs. The aim of this study was

Tumor growth pattern as predictor of colorectal liver metastasis recurrence

Background Surgical resection is the gold standard therapy for the treatment of colorectal liver metastases (CRM). The aim of this study was to investigate the impact of tumor growth patterns on disease recurrence. Methods We enrolled 91 patients who underwent CRM resection. Pathological specimens were prospectively evaluated, with particular attention given to tumor growth patterns (infiltrative vs pushing). Results Tumor recurrence was observed in 65 patients (71.4%). According to multivariate analysis, 3 or more lesions (P = .05) and the infiltrative tumor margin type (P

Chronic Pancreatitis Associated with Chylous Ascites Simulating Liver Cirrhosis

Abstract Purpose. Ascites, esophageal varicose veins, and acute digestive bleeding are unusual in the clinical presentation of chronic pancreatitis; however, these symptoms are frequently observed in patients with liver cirrhosis. Moreover, it is unlikely to observe chylous ascites in both presentations. Method. We report a patient who presented with chronic pancreatitis with splenic vein thrombosis, necrosis of the pancreatic neck and tail, esophageal varicose veins with previous bleeding, and chylous ascites. After partial pancreatectomy, his treatment was based on low-fat oral

Dimensão da margem cirúrgica nas ressecções de metástase hepática de câncer colorretal: impacto na recidiva e sobrevida

INTRODUÇÃO O câncer de cólon e reto é a terceira neoplasia maligna mais comum no ocidente, sendo o tumor do aparelho digestivo mais frequente. Aproximadamente 50% dos pacientes com tumor colorretal apresentam metástase hepática em algum momento durante o curso de sua doença20 O fígado é frequentemente o primeiro local da doença metastática, sendo o único sítio de metástase em 30 a 40% dos pacientes com doença avançada17. A cirurgia

Sciatic Hernia Mimicking Perianal Abscess in a Cirrhotic Patient

1. Introduction Pelvic hernias are very rare, and sciatic is the rarest between them [1]. These hernias occur in the sciatic foramina formed by the sacrospinous ligament. The rarity makes the diagnosis a challenge and also increases the chance of a misdiagnosis. On the other hand, abdominal hernias are frequent in cirrhotic patients with ascites. However, these patients can also develop uncommon hernias such as pelvic hernias because of pelvic floor weakness and high abdominal pressure due to ascites [2]. The presence

Agenesis of the Right Hepatic Lobe

Abstract Introduction. Agenesis of the right lobe of the liver is a rare finding and was defined as the absence of liver tissue on the right side, with preservation of the middle hepatic vein, without previous disease or surgery. It is usually an incident finding reveled by imaging exams or during abdominal surgery. Case Report. A 32-year-old male patient was admitted to the hospital for abdominal discomfort and loss of appetite. Imaging studies revealed the absence of the right hepatic lobe

×