Study of some biochemical and hormonal changes in cases of recurrent and delayed healing duodenal ulcer

ABSTRACT

Subclavian vein cannulation by double lumen catheters as a vascular access for hemodialysis was reported to be associated with several acute and delayed complications. Double lumen Maborker subclavian catheters has been fixed for 60 cases in the last six months. There was difficult introduction in 9 cases with initial cannulation of the internal jugular vein instead of the superior vena cava [SVC] in 4 of them. One case was resuscitated from cardiac arrest during introduction and 3 cases were treated for septicemia as a result of infection at the catheter site. The tip of the catheter assessed by plain chest films was most in the right atrium in 34 cases, in the SVC in 24 cases and in the inferior vena cava in 2 cases. The mean dwelling time of the catheters was 4.68 +/- 1.8 weeks. Follow-up venography was done for 20 cases 3-6 months after removal of the catheter. It revealed the occurrence of subclavian vein thrombosis in 8 cases and stenosis in 2 of these 8 cases. Subclavian venography on the side of the fistula done for 20 patients on regular dialysis treatment for more than 3 years was normal. It was concluded that the subclavian vein as a route of vascular access for hemodialysis is a potential risk and should be approached only when obligatory