Weight Loss & Gallstones Study Results
For Introduction, see Gallstones
& Weight Loss
Gallstones & Weight Loss Study -
Results
Forty-one (68.3 percent, 8 male, 33 female) of the original 60 patients
completed all phases of the study (15 urso, 15 ibuprofen, 11 placebo).
The average weight loss was 98.5 +/- 7.2 lb over the 12-month period following
bariatric surgery. Twenty-nine (71 percent) of 41 patients who completed
the study developed GS. Of those who formed stones, 12 (41 percent) developed
symptomatic GS and 8/12 (67 percent) underwent cholecystectomy (4 refused
operation). Preoperative gallbladder emptying studies showed no differences
in emptying between groups (urso 29 percent, ibuprofen 32 percent, and
placebo 30 percent). There was no correlation found between the cholesterol
saturation index (CSI mean 205.15, range 67-360) and the incidence of
GS. There was a statistical difference (P < 0.01) between the ursodeoxycholic
acid group and the ibuprofen group with respect to the incidence of stone
formation. There was correlation between weight loss (mean 99 lb, range
21-278 lb) and GS formation, in that patients who lost more weight had
a greater tendency to form gallstones. Complete medical compliance was
achieved in only 17/60 (28 percent) of patients originally enrolled.
Gallstones & Weight Loss Study -
Conclusions
This pilot study confirms the high incidence of gallstone formation (71
percent of assessed patients) associated with rapid weight loss in patients
undergoing gastric bypass. Despite active enrollment in a supervised prevention
trial, the two therapies investigated to reduce gallstone formation were
not efficacious, likely because compliance with medical therapy was poor.
These findings highlight the significant risk of gallstone formation in
this patient cohort even when prevention strategies are utilized.
Source: Wudel LJ Jr, Wright JK, Debelak
JP, Allos TM, Shyr Y, Chapman WC. Department of Surgery, Vanderbilt University
Medical Center, Nashville, Tennessee. 2002
Weight Loss News
Theories about how to lose weight, how to reduce obesity and general weight
management are constantly changing along with ideas about which weight
loss diet program is best and so forth. At present, however, a balanced
diet combined with regular exercise remains the favorite weight loss strategy
of most dietitians and weight loss experts. Return to Weight Loss Data
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