The Effect of Prophylactic Pre Operative Probiotic Therapy on Endotoxin Levels in Cardiac Surgery Patients

Overview

The primary hypothesis for the study is that pre-operative prophylactic probiotic Lactobacilli tablets will reduce the severity and incidence of endotoxin rise in post cardiopulmonary bypass in cardiac surgery patients. Endotoxins are large heat stable lipopolysaccharides, which are found in the cell wall of gram negative bacteria. It has been assumed that the intestinal bacteria are the primary source of the plasma endotoxin in cardiac surgery patients.Lactobacilli have been reported as effective in counteracting gram negative bacteria in the gut.Thus Lactobacilli may be effective in reducing the endotoxin rise associated with cardiopulmonary bypass, which may potentially reduce the incidence of the syndrome of generalised inflammation and low systemic vascular resistance post cardiopulmonary bypass.

The study compare endotoxin levels of post operative cardiac surgery patients who have received pre operative prophylactic probiotic Lactobacillus tablets. Compared to patients who have received a placebo. Two different lactobacillus strains will be assessed in the study: Lactobacillus Acidophilus and Lactobacillus Fermentum. There are 4 treatment groups in this study. Lactobacillus Acidophilus,Lactobacillus Fermentum, Lactobacillus Fermentum and Lactobacillus Acidophilus and Placebo. The probiotic/placebo will be given to the patient 2 a dy for between 2-7 days preoperatively. Participation in this study requires 6 separate blood tests commencing at the start of surgery and continuing for 24 hours immediately post operatively.A total of 30 mls of blood is required.

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Eligibility

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