Thrombelastographic changes and early rebleeding in cirrhotic patients with variceal bleeding.
GUT(1998)
Abstract
Background-Routine coagulation tests do not necessarily reflect haemostasis in vivo in cirrhotic patients, particularly those who have bleeding varices. Thrombelastography (TEG) can provide a global assessment of haemostatic function from initial clot formation to clot dissolution. Aim-To evaluate TEG changes in cirrhotic patients with variceal bleeding and their association with early rebleeding. Patients/Methods-Twenty cirrhotic patients with active variceal bleeding had serial TEG and routine coagulation tests daily for seven days. The TEG variables before the day of rebleeding (n = 6) were compared with those of patients without rebleeding (n = 14). Results-Baseline characteristics rebleeding and non-rebleeding groups were comparable apart from a higher incidence of uncontrolled infection on the day of rebleeding in the rebleeding group (p = 0.007). The patients in the rebleeding group were more hypocoagulable before the day of rebleeding as shown by longer r (42 v 24 mm, p<0.001) and k (48 v 13 mm, p<0.001) and smaller a (12 v 38 degrees, p<0.001) compared with the mean of daily results of the non-rebleeding group. Routine coagulation tests, however, showed no significant differences between the two groups. Conclusion-The results of serial TEG measurements suggest that hypocoagulability may be associated with early rebleeding in cirrhotic patients.
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Key words
thrombelastography,variceal bleeding,early rebleeding,cirrhosis
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