Preoperative and post-operative intensive interventions improved symptoms of depression and anxiety , quality of life , diastolic blood pressure , and resting heart rate but not lipids or glycaemic measures .
This systematic review and meta- analysis of intervention studies aims to evaluate the effect of preoperative and /or post-operative support for adults who elect bariatric surgery delivered by a multidisciplinary team ( MDT )  on post-operative body composition , mental health , co-morbidities , quality of life , and side effects .
Effects of a very low calorie diet in the preoperative stage of bariatric surgery: a randomized trial.
BACKGROUND Preoperative bariatric patients can follow very low calorie diets ( VLCD ) , reducing surgical risks . However , possible advantages of a liquid diet over one of normal consistency are controversial . This study investigated the effect of a liquid VLCD compared with one of normal consistency considering visceral fat ( VF ) loss and metabolic profile in preoperative clinical ly severe obese patients . METHODS This was a r and omized , open-labeled , controlled clinical trial . Patients were divided into 2 groups : liquid diet and normal diet . Data were collected at baseline and 7 and 14 days after intervention . Information gathered was analyzed for loss of weight and VF , biochemical data , anthropometric data , and energy intake . RESULTS Fifty-seven patients consumed the liquid diet and 47 consumed the normal consistency diet . The liquid diet group lost significantly more weight ( P<.0290 ) and VF ( P<.0410 ) than the normal diet group . An inverse correlation occurred between VF loss and surgical time among the liquid diet group ( r2=-.1302 , P=.001 ) . Additionally , there was a positive correlation between the percentage of excess weight loss and ketonuria ( P=.0070 ) . No between-group difference occurred regarding calorie intake . CONCLUSION Patients that consumed a liquid diet presented a positive effect on reducing VF and greater weight loss than the normal diet group . Both VLCDs presented benefits offering a protective effect during the preoperative stage
Preoperative and post-operative intensive interventions improved symptoms of depression and anxiety , quality of life , diastolic blood pressure , and resting heart rate but not lipids or glycaemic measures .
This systematic review and meta- analysis of intervention studies aims to evaluate the effect of preoperative and /or post-operative support for adults who elect bariatric surgery delivered by a multidisciplinary team ( MDT )  on post-operative body composition , mental health , co-morbidities , quality of life , and side effects .