Abstract

Background & aim: Adherence is the degree of patient's success to do the health experts recommendations. The aim of present research was to study the effects of motivational interviewing on adherence to in obese patients undergoing sleeve gastrectomy surgery.

Methods: The design of present semi- experimental study was pre-test, post-test with control group. The statistical population included all obese patients (BMI≥35) that undergone laparoscopic sleeve gastrectomy surgery in Shiraz Ghadir Mother & Child Hospital during the winter of 2015 and the spring of 2016. 30 of them were selected by using available sampling method and they randomly were asssigned to experimental (n=15) and control groups (n=15). The post bariatic surgery self-management behaviors questionnaire was used to collect data in two steps (pre-test and post-test). Motivational interviewing was implemented for the experimental group in four weeks (each week a 1.5 hour session). Data were analysed by using multivariate covariance analysis (MANCOVA).

Results: MANCOVA results show that motivational interviewing led to a statistically significant difference between pre-test and post-test BSSQ total scores (P<0.0001) and subscales eating behaviors (P<0.0001), fluid intake (P<0.03), vitamin and mineral supplement intake (P<0.01), fruit, vegitable, whole grain intake and protein (P<0/01) & dumping syndrome management (P<0.002). But there was no significant difference in the score of physical activity (P>0.07).

Conclusion: According to the results of the present study, implementation of motivational interviewing in order to enhance adherence and self-management behaviors, achieve favorable weight loss and reduce postoperative complications in obese patients undergoing sleeve gastrectomy surgery, but it appears that longer interventions are necessary to increase the rate of physical activity.