Meta-analysis of drain amylase content on postoperative day 1 as a predictor of pancreatic fistula following pancreatic resection.

BACKGROUND: Drain amylase content in the days immediately after major pancreatic resection has been investigated previously as a predictor of postoperative pancreatic fistula (POPF). Its accuracy, however, has not been determined conclusively. The purpose of this study was to evaluate the accuracy of drain amylase content on the first day after major pancreatic resection in predicting the occurrence of POPF. METHODS: A literature search of the MEDLINE, Embase and Scopus(®) databases to 13 May 2015 was performed to identify studies evaluating the accuracy of drain amylase values on day 1 after surgery in predicting the occurrence of POPF. The area under the hierarchical summary receiver operating characteristic (ROC) curve (AUChSROC ) was calculated as an index of accuracy, and pooled estimates of accuracy indices (sensitivity and specificity) were calculated at different cut-off levels. Subgroup and meta-regression analyses were performed to test the robustness of the results. RESULTS: Thirteen studies involving 4416 patients were included. The AUChSROC was 0·89 (95 per cent c.i. 0·86 to 0·92) for clinically significant POPF and 0·88 (0·85 to 0·90) for POPF of any grade. Pooled estimates of sensitivity and specificity were calculated for the different cut-offs: 90-100 units/l (0·96 and 0·54 respectively), 350 units/l (0·91 and 0·84) and 5000 units/l (0·59 and 0·91). Accuracy was independent of the type of operation, type of anastomosis performed and octreotide administration. CONCLUSION: Evaluation of drain amylase content on the first day after surgery is highly accurate in predicting POPF following major pancreatic resection. It may allow early drain removal and institution of an enhanced recovery pathway.

Neoadjuvant chemotherapy and primary-first approach for rectal cancer with synchronous liver metastases.

AIM: Up to a quarter of patients with rectal cancer have synchronous liver metastases at the time of diagnosis. This is a predictor of poor outcome. There are no standardized guidelines for treatment. We reviewed the outcomes of our patients with synchronous rectal liver metastases treated with a curative intent by neoadjuvant chemotherapy with or without chemoradiotherapy followed by resection of the primary tumour and then liver metastases. METHOD: Between 2004 and 2012, patients who presented with rectal cancer and synchronous liver metastasis were treated with curative intent with peri-operative systemic chemotherapy as the first line of treatment. Responders to chemotherapy underwent resection of the primary tumour with or without preoperative chemoradiotherapy followed by hepatic resection. RESULTS: Fifty-three rectal cancer patients with 152 synchronous liver lesions were identified. After a median follow-up of 29.6 months, the median survival was 41.4 months. Overall survival was 59.0% at 3 years and 39.0% at 5 years. CONCLUSION: Rectal resection before hepatic resection combined with neoadjuvant chemotherapy is associated with promising clinical outcome. It allows downstaging of liver lesions and removal of the primary tumour before the progression of further micrometastases. Furthermore, patients who do not respond to chemotherapy can be identified and may avoid major surgical intervention.

Surgical resection of hepatic and cardiac neuroendocrine metastases from a caecal primary tumour.

A 66-year-old patient had an incidentally detected caecal neuroendocrine tumour that had metastasised to the liver and left atrium. He was asymptomatic with regard to this tumour and did not have carcinoid syndrome. Resection of the primary tumour and the metastatic deposits (with the ablation of one lesion) is thought to be curative.

Pancreas-sparing distal duodenectomy for infrapapillary neoplasms.

INTRODUCTION: For neoplasms that arise in the third and fourth parts of the duodenum (D(3), D(4)), a duodenectomy that preserves the pancreas can provide adequate tumour clearance while avoiding the additional dissection and risk of the common alternative, pancreatoduodenectomy. PATIENTS AND METHODS: Pancreas-sparing distal duodenectomy (PSDD) was performed in 14 patients with infrapapillary duodenal neoplasms between 1991-2002, and the clinical outcome is reviewed. The operation entails careful separation of the lower pancreatic head from D(3), complete mobilisation of the ligament of Treitz and end-to-end duodenojejunal anastomosis 1-3 cm below the major duodenal papilla. RESULTS: There were 9 men and 5 women of median age 56 years, who presented with iron-deficiency anaemia (n = 8), gastric outlet obstruction (n = 4), anaemia and gastric outlet obstruction (n = 1), epigastric pain or mass (1 each). There were 11 malignant neoplasms (adenocarcinoma 5, stromal tumour 4, recurrent seminoma 1, plasmacytoma 1), 2 benign neoplasms (villous adenoma, lipoma) and 1 patient with steroid-induced ulceration. In addition to D(3) and D(4), resection included the distal part of D(2) in 5 patients, while 4 required concomitant partial colectomy. Median operation time was 240 min and median blood loss 1197 ml, being greater for malignant than benign lesions (1500 ml versus 700 ml). There was one death from gangrenous cholecystitis, one early re-operation for anastomotic bleeding and one late re-operation for delayed gastric emptying secondary to anastomotic stricture, but no pancreatic complications. At a median follow-up of 47 months, three patients had died of recurrent disease while the other 10 were alive and well with no upper gastrointestinal symptoms. CONCLUSIONS: Provided there is a minimum 1-cm clearance at the papilla, PSDD is a useful alternative to formal pancreatoduodenectomy in patients with unusual neoplasms arising from the third and fourth parts of the duodenum. Although a major undertaking in its own right, it avoids the extra time of a pancreatic resection and the extra risk of a pancreatic anastomosis.