Ps. Powers et al., OUTCOME OF GASTRIC RESTRICTION PROCEDURES - WEIGHT, PSYCHIATRIC DIAGNOSES, AND SATISFACTION, Obesity surgery, 7(6), 1997, pp. 471-477
Background: Weight losses following bariatric surgery have varied wide
ly, depending on length of follow-up and various pre-surgical characte
ristics of patients undergoing surgery. Methods: One hundred thirty on
e patients had a detailed presurgical psychiatric evaluation. Patients
were assessed clinically for 2 years after surgery and at follow-up a
mean of 5.7 years after surgery. Results: Mean presurgical body mass
index (BMI) was 52.9 kg/m(2); therefore, many patients had 'super obes
ity'. Two-thirds of the patients were located a mean of 5.7 years afte
r surgery. The mean change in BMI at follow-up was 25% and the mean we
ight loss was 27%. One-third had excellent or good weight outcomes usi
ng the Griffen criteria. Five patients had died by follow-up. There wa
s no relationship between age, gender, or fat content presurgically an
d weight loss at follow-up, although presurgical weight was associated
with greater weight loss at follow-up. Weight regain began 2 years af
ter surgery. There was no relationship between the presence or absence
of a presurgical psychiatric diagnosis and weight loss at follow-up.
There was also no relationship between the presence of a presurgical p
sychiatric diagnosis and various mental health parameters at follow-up
. Satisfaction with the surgery was marginally associated with weight
loss but significantly associated with improved mental and physical he
alth. Conclusions: Mean weight losses were less than have been previou
sly reported with gastric restriction procedures but the follow-up was
longer than usually reported and many patients had 'super obe-sity' p
rior to surgery. The implications of 'super obesity' for weight loss a
re discussed.