[Effects of bariatric surgery not affected by psychiatric comorbidity: a systematic review of studies of morbidly obese patients].
OBJECTIVE
To review the literature on the predictive value of psychiatric comorbidity for weight loss following bariatric surgery in patients with morbid obesity.


METHODS
Systematic review.


METHODS
PubMed databases were searched for literature comparing weight loss following bariatric surgery in morbidly obese patients with and without preoperative psychiatric symptoms. General psychiatric disorders were distinguished from eating disorders.


RESULTS
The search yielded 204 references, 6 of which complied with inclusion criteria. 2 studies were retrospective (169 patients in total; the other 4 were prospective (1140 patients in total). The average follow-up period varied between 12 and 60 months. In 2 studies (n = 528 patients), the influence of eating disorders on the outcome of bariatric surgery was specifically studied. The quality of the studies was low. Psychiatric disorders and eating disorders did not influence the outcome of bariatric surgery. In 1 study, weight loss was less after surgery in patients diagnosed with more than 2 psychiatric disorders.


CONCLUSIONS
In 5 of the 6 studies, psychiatric comorbidity was not related to the weight loss following bariatric surgery. In view of the differences in design and the poor quality of the studies, definite conclusions cannot be drawn. There is no indication that routine psychiatric screening should form part of the work-up for bariatric surgery. We advise that note should be taken of the psychiatric history and any current psychiatric treatment.
Vergouwen
A C M Ton
AC
Sint Lucas Andreas Ziekenhuis, Afd. Psychiatrie, Amsterdam, the Netherlands. a.vergouwen@slaz.nl
Aajoud
Samira
S
van Wagensveld
Bart A
BA
van Tets
Willem F
WF
Honig
Adriaan
A
D050110:Bariatric Surgery / Q000523:psychology; D015897:Comorbidity; D006801:Humans; D008403:Mass Screening; D001523:Mental Disorders / Q000453:epidemiology*; D009767:Obesity, Morbid / Q000453:epidemiology* / Q000523:psychology* / Q000601:surgery; D016896:Treatment Outcome; D015431:Weight Loss / Q000502:physiology*