Debulking of Advanced Gastrointestinal Stromal Tumor With Peritoneal Carcinomatosis Refractory to Imatinib and Sunitinib: A Case Report.

Gastrointestinal stromal tumors (GISTs) are non-epithelial stromal tumors that arise in the gastrointestinal tract. Pharmacological treatments for GIST are tyrosine kinase inhibitors. For metastatic disease, debulking may be helpful in reducing the tumor burden, thus increasing the effectiveness of tyrosine kinase inhibitors. Debate on whether resection would benefit the patient is still present. Here is a case of a 52-year-old African American male presenting with metastatic malignant GIST with peritoneal carcinomatosis refractory to imatinib and sunitinib. Since this patient had stage IV metastasis it was ultimately decided to proceed with a therapeutic debulking procedure. For this patient, the procedure increased the effectiveness of the medication and reduced mass effect symptoms, improving quality of life.

Decreasing the burden: An unusual GIST presentation, a case report.

INTRODUCTION: Gastrointestinal stromal tumours (GIST) are notoriously one of the most common mesenchymal tumours of the alimentary canal. Most commonly originating from the gastric stroma, they are recognized by their mass effects on the abdominal cavity. Recurrence frequently occurs with GIST and these tumours may become refractory to tyrosine kinase inhibitors (TKIs). Therefore, resection may be indicated for improved outcomes. PRESENTATION OF CASE: We present a 52-year-old African American male with a surgical history of GIST resection with recurrence that came to the emergency room with worsening diffuse abdominal pain. The tumour was refractory to two TKIs, Imatinib and Sunitinib. Computed tomography (CT) of the abdomen and pelvis was done which showed severe metastatic disease with carcinomatosis, multiple dilated loops of small bowel in the left hemiabdomen without discrete transition point. After seventeen days on nasogastric tube, antiemetics, the patient worsened, and it was decided to go to surgery. In this report, attention is focused on the surgical approach of tumour debulking with subsequent Regorafenib therapy for decreased obstructive symptoms and improved quality of life. CONCLUSION: This case serves as an example of the importance of surgical debulking in addition to molecular therapy for patients with severely extensive GISTs. Tumour debulking is important to decrease tumour burden, improve chemotherapeutic response and improve quality of life especially in persons refractory to pharmacological therapy.

Making liver transection even safer: a novel use of microwave technology.

Hepatic surgery has evolved significantly in the past decade. The current article describes the largest series of patients in United States undergoing liver resective therapy with the use of microwave technology for liver precoagulation. Glisson's capsule was incised after securing inflow and outflow control. Two antennae, 2 cm apart, connected to a 915-MHz generator, were inserted 5 cm into liver parenchyma at a 130° angle. Once the parenchyma was firm and changed its color to gray, the antennae were advanced along the line of transection. The parenchyma was divided with electrocautery. Intra- and postoperative data were analyzed. Thirty-five patients (24 men) underwent liver resections. Diseases treated were colorectal metastases (n = 9), hepatic adenoma (n = 3), gallbladder cancer (n = 3), hepatocellular carcinoma (n = 4), neuroendocrine tumor (n = 2), cholangiocarcinoma (n = 5), hemangioma (n = 2), focal nodular hyperplasia (n = 2), metastatic gastrointestinal stromal tumor (n = 1), hydatid cyst (n = 1), hepatoid carcinoma (n = 1), hepatolithiasis (n = 1), and suspected metastatic breast cancer (n = 1). Resections done were right hepatectomy (n = 19), segmental resection (n = 5), left hepatectomy (n = 4), extended right hepatectomy (n = 4), Segment IVb and Segment V resections during radical cholecystectomy (n = 2), and left lateral sectionectomy (n = 1). Median operative time for major resection was 188 and 251 minutes for minor resection. There was one postoperative mortality. Bile leak needing stenting occurred in one patient. Median blood loss for major resection was 500 mL and 265 mL for minor resection. Intraoperative transfusion was required in nine major and one minor resections. Other complications were ileus in four, deep vein thrombosis in two, intra-abdominal abscess in one, and cardiac events in two patients. Liver precoagulation with microwave technology is a novel and efficient technique with minimal morbidity and mortality for liver transection.

Surgical management of gastric varices and morbid obesity: a novel approach.

BACKGROUND: Morbid obesity is a growing pandemic. The greater prevalence of chronic conditions such as diabetes, hypertension, and heart and liver disease has made management of obesity challenging. Many surgical techniques are in practice, each with some elements of restrictive or malabsorptive components. Nonalcoholic steatohepatitis can lead to portal hypertension, which can further manifest as upper gastrointestinal bleeding. METHODS: We performed sleeve gastrectomy at a nonuniversity tertiary care center, as a novel approach for the management of isolated gastric varices, in a morbidly obese cirrhotic patient. RESULTS: The operating time was 142 minutes. The estimated blood loss was 150 mL. The patient did not receive intraoperative or postoperative transfusions. The length of stay was prolonged to 10 days because of an ischemic cardiac event that was managed by coronary angioplasty on postoperative day 7. The patient did not develop any other complications. During the next couple of months, the patient lost significant weight and had no complaints. CONCLUSION: Sleeve gastrectomy with devascularization is a durable approach that will address the problems of both portal hypertension and morbid obesity, with the desired effect of weight reduction and treatment of gastric varices using a single surgical approach.

Current status of antireflux surgery.

This article summarizes the historical aspects of antireflux surgery,including the initial techniques and subsequent modifications. Appropriate patient selection is essential to the success of antireflux procedures. The authors review the diagnostic evaluation, the technical details of the procedure, and how to manage surgical failures.