Which of the following statements about pancreatic ascites is/are correct?
- Patients typically present with painful ascites, reflecting the release of toxic pancreatic enzymes into the peritoneal cavity.
- The standard evaluation of a patient with new-onset ascites includes abdominal paracentesis. In cases of pancreatic ascites, the peritoneal fluid contains high concentrations of both amylase and protein.
- Pancreatic ascites can follow an episode of acute pancreatitis.
- Patients with pancreatic ascites may fail to improve with nonoperative therapy and require surgical procedures. At abdominal exploration an acceptable approach to the pancreatic duct disruption involves suture ligation with omental patching.
B. The standard evaluation of a patient with new-onset ascites includes abdominal paracentesis. In cases of pancreatic ascites, the peritoneal fluid contains high concentrations of both amylase and protein.
C. Pancreatic ascites can follow an episode of acute pancreatitis.
DISCUSSION: Pancreatic ascites typically occurs because of a pancreatic duct disruption, most commonly involving alcohol abuse and resultant acute pancreatitis. In pancreatic ascites, pancreatic exocrine secretions exit a pancreatic duct disruption and drain anteriorly into the peritoneal cavity. Patients typically present with painless massive ascites, as the pancreatic enzymes that extravasate into the peritoneal cavity are typically nonactivated. The diagnosis of pancreatic ascites is best made by paracentesis, in which the analysis of the ascites fluid reveals it to be high in amylase (more than 1000 U. per dl.) and high in albumin (more than 3 gm. per dl.). Nonoperative treatment is initially indicated in most patients with pancreatic ascites. Should nonoperative therapy fail, surgical therapy is directed to closure of the pancreatic duct disruption. Preoperative pancreatography is useful in directing surgical therapy. Distal pancreatic duct disruption may be treated with distal pancreatectomy or with Roux-en-Y pancreaticojejunostomy. Pancreatic leaks in the more proximal aspects of the gland are treated with Roux-en-Y pancreaticojejunostomy. Suture ligation of the pancreatic duct with omental patching is not considered appropriate therapy for pancreatic duct disruptions.
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