Preoperative Weight Loss via Very Low Caloric Diet (VLCD) and Its Effect on Outcomes After Bariatric Surgery

Tan, Sarah Ying Tse; Loi, Pooi Ling; Lim, Chin Hong; Ganguly, Sonali; Syn, Nicholas; Tham, Kwang Wei; Tan, Hong Chang; Chan, Weng Hoong; Wong, Hui Mei; Lee, Phong Ching

doi:10.1007/s11695-020-04446-y

Cited by 24 publications

(13 citation statements)

References 23 publications

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“…In most subjects, nearly all the weight loss was achieved six months after the surgery. However, since the maximum weight loss was observed 12 to 24 months after the surgery, a few more subjects could reach the treatment goal [25]. The results in this study are in accordance with larger studies with six month to ten year follow-up periods [2,3,[25][26][27][28].…”

Section: Discussionsupporting

confidence: 88%

“…Comparisons with other studies are difficult because the behavioural weight loss regimens vary in length and content and are not always completely described. In large, the weight reduction was as reported in other studies [25,27,28].…”

Section: Discussionsupporting

confidence: 77%

“…The purpose is to evaluate compliance with the necessary dietary changes before and after surgery, reduce complications and improve the outcomes [8]. The benefit from this mandatory weight loss before surgery is at best dubious [25,27,28]. In this study, neither the reduction in BMI nor the %EBMIL in the two treatment periods were significantly associated.…”

Section: Discussionmentioning

confidence: 65%

“…Short-and long-term weight loss after bariatric surgery has been thoroughly studied [2][3][4][25][26][27][28]. The results after the second treatment period are in accordance with studies with the same surgical procedures and observation time [25][26][27][28]. Comparisons are, however, difficult because not all studies specify if the preoperative weight loss is included in surgically induced weight loss.…”

Section: Discussionmentioning

confidence: 81%

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Are the Results of a Combined Behavioural and Surgical Treatment of Morbid Obesity Satisfactory and Predictable?

Farup

2020

Nutrients

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Treatment of subjects with morbid obesity (Body Mass Index (BMI) > 40 kg/m2 or > 35 kg/m2 with obesity-related complications) often fails. This study explored the biopsychosocial predictors of dropout and weight loss during a combined behavioural and surgical weight-reduction program. Behavioural treatment for six months was followed by bariatric surgery and a visit six months after surgery. The success criterion was the loss of ≥50% of excess BMI above 25 kg/m2 (%EBMIL). Thirty-one men and 113 women with BMI 43.5 kg/m2 (SD 4.3) and 41.8 kg/m2 (SD 3.6), respectively, were included; 115 underwent bariatric surgery (Gastric sleeve: 23; Roux-en-Y gastric bypass: 92), and 98 had a follow-up visit six months after surgery. The mean %EBMIL at follow-up was 71.2% (SD 18.5). Treatment success was achieved in 86 subjects. Assuming success in 17 subjects who did not attend the follow-up visit (best possible outcome), 103 out of 144 subjects (72%) achieved successful weight reduction. Cohabitation was the only predictor of accomplishing surgery. Neither weight loss during behavioural therapy nor biopsychosocial factors were found to be clinically significant predictors of weight loss after surgery. The success rate of less than three in four subjects was unsatisfactory. There is a need to improve the regimen and to determine effective alternative interventions.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 81%

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Are the Results of a Combined Behavioural and Surgical Treatment of Morbid Obesity Satisfactory and Predictable?

Farup

2020

Nutrients

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“…We conducted a chart review of patients who had undergone laparoscopic sleeve gastrectomy (LSG), one anastomosis gastric bypass (OAGB) or Roux-en-Y gastric bypass (RYGB) at a Singapore-based tertiary centre from 2008 to 2018 (19). All patients met local criteria for surgery (BMI ≥ 37.5kg/m 2 , or BMI ≥ 32.5kg/m 2 with comorbidities), and were included if they had completed an intake questionnaire on their medical and social history (routinely administered to patients during their first pre-operative visit).…”

Section: Methodsmentioning

confidence: 99%

Examining spousal and family support as predictors of long-term weight loss and remission of type 2 diabetes following bariatric surgery

Tan

et al. 2021

Preprint

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Background: Postoperative outcomes vary considerably across bariatric patients and may be related to psychosocial factors. In this study, we examined whether a patients family support predicts weight loss and the remission of type 2 diabetes (T2DM) up to 5 years following surgery. Methods: Between 2008 to 2018, 359 patients completed a pre-surgical questionnaire before undergoing gastric bypass or sleeve gastrectomy. As part of the questionnaire, patients described their family support in terms of structure (marital status, number of family members in the household) and function (marriage satisfaction, family emotional support, family practical support). These were applied as predictors to percent total weight loss (%TWL) and T2DM remission at 1, 2, 3, 4, and 5 years following surgery. Results: Marital satisfaction was found to be a significant predictor of post-surgical weight trajectories. Namely, patients who reported higher marital satisfaction were more likely to sustain weight loss than patients who reported lower marital satisfaction. Conclusions: Given the link between marital support and long-term weight outcomes, providers could consider asking patients about their spousal relationships during pre-surgical counselling.

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Pre‐bariatric surgery acute kidney injury: Can this be prevented?

Leelaviwat,

Yingchoncharoen,

Thongpiya

et al. 2023

Clinical Case Reports

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Key Clinical MessagePre‐bariatric surgery dietary recommendations should take into account daily protein intake and other risk factors for kidney injury. This is important because a high protein intake can potentially lead to kidney injury.AbstractBariatric surgery has been shown to be a highly effective intervention for achieving weight loss and reducing obesity related‐comorbidities. Acute kidney injury (AKI) is considered one of the common complications in perioperative and post‐bariatric surgery. However, pre‐bariatric surgery AKI has never been reported. Several studies demonstrated that pre‐bariatric surgery weight loss improved surgical outcomes and decrease postoperative complications. Some diet regimens have been introduced including low‐caloric diet (LCD), very‐low caloric diet (VLCD), and very‐low caloric ketogenic diet (VLCKD). We present a patient who develops AKI after 10 days of having a high‐protein diet from a pre‐bariatric weight loss strategy.

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Preoperative Weight Loss via Very Low Caloric Diet (VLCD) and Its Effect on Outcomes After Bariatric Surgery

Cited by 24 publications

References 23 publications

Are the Results of a Combined Behavioural and Surgical Treatment of Morbid Obesity Satisfactory and Predictable?

Are the Results of a Combined Behavioural and Surgical Treatment of Morbid Obesity Satisfactory and Predictable?

Examining spousal and family support as predictors of long-term weight loss and remission of type 2 diabetes following bariatric surgery

Pre‐bariatric surgery acute kidney injury: Can this be prevented?

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