 At this point, attention was diverted to the patient's tubes, a Babcock clamp grasped the isthmic portion of each tube and approximately 1-cm knuckle on either side was tied off with two lengths of 0 plain catgut. 
At this point , attention was diverted to the patient 's tubes , a Babcock clamp grasped the isthmic portion of each tube and approximately 1 - cm knuckle on either side was tied off with two lengths of 0 plain catgut .