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Study to assess dissonance-based intervention post RYGB

Patients are attending sessions held at the hospitals and topics discussed are PA, eating behaviour, social and intimate relationships

Researchers in Sweden are investigating whether the effects of a dissonance-based intervention on health-related quality of life (HRQoL), physical activity (PA)and other health-related behaviours in female RYGB patients 24 months after surgery. The ‘WELL-GBP’ trial (wellbeing after gastric bypass), is a dissonance-based intervention for female RYGB patients conducted at five hospitals in Sweden. The participants are randomised to either control group receiving usual follow-up care or to receive an intervention consisting of four group sessions three months post-surgery during which a modified version of the Stice dissonance-based intervention model is used.

The study outline, ‘A dissonance-based intervention for women post roux-en-Y gastric bypass surgery aiming at improving quality of life and physical activity 24 months after surgery: study protocol for a randomized controlled trial’, was published in the journal BMC Surgery.

Patients are attending sessions held at the hospitals and topics discussed are PA, eating behaviour, social and intimate relationships. All participants are asked to complete questionnaires measuring HRQoL and other health-related behaviours and wear an accelerometer for seven days before surgery and at six months, one year and two years after surgery.

The intention-to-treat and per protocol analysis will focus on differences between the intervention and control group from pre-surgery assessments to follow-up assessments at 24 months after RYGB. Patients’ baseline characteristics are presented in this protocol paper.

In total, 259 RYGB female patients have been enrolled in the trial, of which 156 women have been randomised to receive the intervention and 103 women to control group. The trial is conducted within a Swedish health care setting where female RYGB patients from diverse geographical areas are represented.

In total, 66% (n=103) of the women in the intervention group attended at least one of the intervention sessions. Pre-RYGB measures were: mean age of 44.2±10.5 years (intervention: 43.6±10.7; control: 45.1±10.1), a mean BMI of 40.9±4.7 (intervention: 40.7±4.3; control: 41.2±5.2), a mean weight of 110.9 ± 15.5 kg (intervention: 110.8±14.0; control: 111.0±17.6), and 21% (n=32) in the intervention group and 22% (n=23) in the control group had diabetes type 2.

To reduce the problems associated with drop-out, the authors noted that a larger proportion (60%) of the participants were randomised to intervention, although 34% (n=53) of the women in the intervention group did not attend any of the intervention sessions, even though they agreed to participate when invited and had completed the baseline assessments.

In this trial 103 women (66%) in the intervention group completed the baseline assessments and attended at least one of the intervention session. Even so, the authors noted that the results may not be representative to the general Swedish women who undergo RYGB surgery. However, they added that if the intervention is effective, implementation within the Swedish health care system is possible within the near future.

To access this paper, please click here

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