Unusual malpositioning of hemodialysis catheter into the hepatic veins.

Malpositioning of long-term hemodialysis catheter is a known complication that may lead to a gradual decline in blood flow. We report two rare catheter malpositions in the hepatic veins in two patients with end-stage renal disease in whom a dialysis catheter was inserted through the left external jugular vein and the right external jugular vein. Because of gradual reduction of catheters' blood flow, an angiography was performed, which confirmed catheters' tip positioning into the hepatic veins.

Metformin induced severe hypophosphatemia in a patient on hemodialysis.

A 67-year-old diabetic and hypertensive woman presented to us with very low serum phosphate levels (PO₄⁻ =1.1 mg/dL) about 40 days after initiation of hemodialysis (HD). The phosphate binders were discontinued, because they were thought to be the cause of hypophosphatemia.

Insertion of long-term tunneled cuffed hemodialysis catheters via the external jugular vein by using a simple, safe and reliable surgical technique.

Objective: Description of our technique for the insertion of long-term tunneled cuffed hemodialysis (HD) catheters via the external jugular vein.

Methods: From December 1999 to August 2006, 357 long-term tunneled cuffed HD catheters were inserted in 308 patients, who were referred to us from various hospitals and clinics in Greece. About half of them (168, or 47%) were inserted via the external jugular vein.

Dose-related effects of prolonged NaHCO3 ingestion during high-intensity exercise.

Purpose: Sodium bicarbonate (NaHCO3) ingestion may prevent exercise-induced perturbations in acid-base balance, thus resulting in performance enhancement. This study aimed to determine whether different levels of NaHCO3 intake influences acid-base balance and performance during high-intensity exercise after 5 d of supplementation.

Methods: Twenty-four men (22 +/- 1.

The red blood cell deformability in patients suffering from end stage renal failure on hemodialysis or continuous ambulatory peritoneal dialysis.

Anemia is the main problem for patients suffering from end stage renal disease (ESRD). This study aimed to determine whether the index of rigidity (IR), that shows red blood cells (RBCs) deformability and the possible IR disturbances can provide an explanation about the cause of anemia, in patients undergoing maintenance hemodialysis (HD) or on peritoneal dialysis. The IR was determined in 39 hemodialyzed patients, who were already in dialysis for a period of time ranging from 16 to 120 months (mean+/-SD=41.