BACKGROUND: The lengthening and the contractility of the digestive tract were studied. METHODS: The stretched length of specimens was measured under pull weights of 500 g and 1000 g; the contracted length was measured in natural status and in 10% formalin fixation in vitro. The lengthening or contractility rate was calculated as the length difference divided by the natural length in vivo. RESULTS: The esophagus lengthened 16.5% at 500 g and 30.5% at 1,000 g, stomach 15% and 22.6%, small intestine 66.4% and 120%, large intestine 36% and 56%. In natural status in vitro, the esophagus contracted 44.5%, stomach 13.6%, small intestine 11.4%, and large intestine 15.6%; they continued to contract 12 to 24 hours after formalin fixation. CONCLUSIONS: The lengthening and contractility of the digestive tract should be considered in evaluating the resection margin at surgery. The length of different conditions can be converted by the formula: Y = alphaX.
BACKGROUND: The lengthening and the contractility of the digestive tract were studied. METHODS: The stretched length of specimens was measured under pull weights of 500 g and 1000 g; the contracted length was measured in natural status and in 10% formalin fixation in vitro. The lengthening or contractility rate was calculated as the length difference divided by the natural length in vivo. RESULTS: The esophagus lengthened 16.5% at 500 g and 30.5% at 1,000 g, stomach 15% and 22.6%, small intestine 66.4% and 120%, large intestine 36% and 56%. In natural status in vitro, the esophagus contracted 44.5%, stomach 13.6%, small intestine 11.4%, and large intestine 15.6%; they continued to contract 12 to 24 hours after formalin fixation. CONCLUSIONS: The lengthening and contractility of the digestive tract should be considered in evaluating the resection margin at surgery. The length of different conditions can be converted by the formula: Y = alphaX.
Authors: Peter S Czajkowski; Nicola M Parry; Carrie A Wood; Sue A Casale; Whitney E Phipps; Jennifer A Mahoney; Daniel I Spector; Lori Lyn Price; John Berg Journal: Front Vet Sci Date: 2022-06-27
Authors: Orhan Üreyen; Cemal Ulusoy; Atahan Acar; Fazıl Sağlam; İlker Kızıloğlu; Ali Alemdar; Kemal Murat Atahan; Emrah Dadalı; Serkan Karaisli; Mehmet Can Aydın; Enver İlhan; Hakan Güven Journal: Turk J Surg Date: 2020-03-18