50歲劉先生因胃癌,1個半月前接受根除性次全胃切除手術(radical subtotal gastrectomy & Billroth-II gastrojejunostomy, ante-colic,病理檢查為T2b N1M0。恢復過程順利,術後10天出院。兩天前腹部不適,3小時前開始腹痛加劇及嘔吐,急診時生命徵象穩定,但冒冷汗。身體檢查上腹部有明顯壓痛,疑似觸摸到腹部腫塊,腸蠕動增加,除serum amylase 867 U/L,WBC 16290 /mm3外,血液檢查正常。放入鼻胃管後只有少量胃液回流,此時最可能的診斷為何?
- gastric cancer recurrence
- anastomotic leakage
- acute pancreatitis
- afferent loop syndrome