Chylous ascites in colorectal surgery: A systematic review

Table 5 Risk factors identified for the occurrence of chylous ascites in colorectal surgery

Ref.	Risk factor	Not risk factor
Lu et al[35], 2010	Right colectomy	-
Sun et al[36], 2012	Tumour size; Tumour location; Number of lymph nodes harvested harvested	-
Nishigori et al[1], 2012	Tumour location; Tumours fed by SMA; D3 Dissection	-
Matsuda et al[2], 2013	-	Blood loss; Operative time; Extent of lymph node dissection; Number of lymph nodes harvested; Region of lymph node dissection
Baek et al[13], 2013	Older age; Right colectomy; Transverse segmental colectomy; Shorter operative time; Lower blood loss; Operator difference	-
Lee et al[17], 2016	Shorter operative time; Positive lymph node metastasis; Number of lymph node harvested; Tumour size	Tumour location; Type of surgery

SMA: Superior mesenteric artery.