Revista ABCd (São Paulo). 30 jan, 2018

DRAIN AMYLASE ON THE FIRST POSTOPERATIVE DAY OF WHIPPLE SURGERY: WHAT VALUE IS THE BEST PREDICTOR FOR EARLY DRAIN REMOVAL?

Enio Campos AMICO
Ítalo Medeiros de AZEVEDO
Marcos Vinicius de Lira FERNANDES
Mariane Albuquerque REIS
Samir Assi JOÃO
DOI: 10.1590/0102-672020180001e1345

Background:

The value of drain amylase on the first postoperative day after pancreatic resections has been described as an efficient predictor of pancreatic fistula. In spite of this, the cut-off point below which the drains can be removed early remains controversial.

Aim:

Validate the use of the amylase on the 1st postoperative day in the correlation with pancreatic fistula and define the value at which early drain removal is safe.

Method:

Were included patients undergoing Whipple surgery in the period of 2007 to 2016. Group 1 enrolled the ones who did not develop fistula and those who developed biochemical fistula for less than seven days postoperatively and group 2 included patients who developed persistent biochemical fistula between seven and 21 days and those with grade B and C fistula.

Results:

Sixty-one patients were included, 41 comprised group 1 and 20 group 2. The incidence of abdominal collections, need for reoperation and time of hospitalization were for group 1 and 2, respectively: 17.1%, 17.1% and 9.5 days, and 65%, 40% and 21.1 days. The median of the amylase from the drain at 1st postoperative day was in group 1 and 2, respectively: 175 U/l and 3172.5 U/l (p=0.001). Using a cut-off of 180 to predict the group to which the patient would belong there was obtained sensitivity, specificity, positive predictive value and negative predictive value of 100%, 48.8%, 50% and 100% respectively.

Conclusion:

It was validated the cut-off value of 180 U/l as appropriate to early drain removal.


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ABCD – BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY is a periodic with a single annual volume in continuous publication, official organ of the Brazilian College of Digestive Surgery - CBCD. Technical manager: Dr. Francisco Tustumi | CRM: 157311 | RQE: 77151 - Cirurgia do Aparelho Digestivo

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