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. 2020 Sep 15;4(6):1109-1116.
doi: 10.1002/bjs5.50334. Online ahead of print.

Effect of different limb lengths on quality of life, eating patterns and gastrointestinal symptoms after Roux-en-Y gastric bypass in superobese patients: randomized study

Affiliations

Effect of different limb lengths on quality of life, eating patterns and gastrointestinal symptoms after Roux-en-Y gastric bypass in superobese patients: randomized study

B J Nergård et al. BJS Open. .

Abstract

Background: Distal Roux-en-Y gastrojejunal bypass (DRYGJB) gives better weight reduction than standard Roux-en-Y gastric bypass (RYGB) but at the risk of increased malnutrition side-effects. This study compared the effects of RYGB and DRYGJB on gastrointestinal symptoms, eating patterns and health-related quality of life (QoL).

Methods: This was a single-blind RCT from a university-affiliated obesity centre. Patients with a BMI of 50 kg/m2 or above were invited to participate. Treatment arms were standard gastric bypass with an alimentary limb of 150 cm and a biliopancreatic limb of 60 cm, with a variable common channel length, or DRYGJB with biliopancreatic limb of 200 cm, common channel limb of 150 cm and variable alimentary limb length. Baseline and follow-up data to 5 years on quality of life, obesity-related problems and gastrointestinal symptoms were collected using prospectively created and validated questionnaires.

Results: Some 140 patients were included. Those with a DRYGJB had better weight loss at 5 years (mean(s.d.) 68·3(21·8) kg versus 55·7(19·8) kg for standard RYGB; P = 0·011). Eating patterns improved, with no difference between the groups. Gastrointestinal symptoms (diarrhoea, indigestion) worsened significantly in both groups, but only patients with DRYGJB had significantly worse diarrhoea at the end of the study than at baseline (P = 0·006). Both groups had improved perceived generic QoL over baseline, and obesity-related problems were markedly reduced.

Conclusion: Standard RYGB and both improved generic and disease-specific QoL and eating behavioural pattern. Diarrhoea was increased more following DRYGJB than after RYGB. Registration number: NCT01514799 (https://clinicaltrials.gov).

Antecedentes: El bypass gastroyeyunal distal (distal gastrojejunal bypass, DRYGB) proporciona una mejor pérdida de peso que el RYGB estándar, pero con el riesgo de aumentar los efectos secundarios de malnutrición. El presente estudio comparó los efectos de RYGB y DRYGJB en los síntomas gastrointestinales, patrón alimentario y calidad de vida relacionada con la salud. MÉTODOS: Estudio aleatorizado simple-ciego y controlado efectuado en un centro de obesidad con afiliación universitaria. Se invitó a participar a pacientes con un IMC de ≥ 50 kg/m2 . Las ramas del tratamiento fueron el bypass gástrico estándar con asa alimentaria (alimentary lim, AL) de 150 cm y asa biliopancreática (biliopancreatic, BP) de 60 cm, con asa común (common cannel, CC) de longitud variable, o DRYGJB con asa BP de 200 cm, asa CC de 150 cm y AL variable. Se recogieron datos basales y de seguimiento a los 5 años respecto a la calidad de vida, problemas relacionados con la obesidad y síntomas gastrointestinales utilizando cuestionarios prospectivos creados y validados.

Resultados: Se incluyeron un total de 140 pacientes. Los pacientes con DRYGJB tuvieron una mayor pérdida de peso a los 5 años (media (DE) 68,3 kg (21,9) versus 55,7 (19,8); P = 0,011)). Los patrones alimentarios mejoraron sin diferencia entre grupos. Los síntomas gastrointestinales (diarrea, indigestión) empeoraron significativamente en ambos grupos, pero solo los pacientes con DRYGJB presentaron diarrea al final del estudio significativamente peor en comparación con la situación basal (P = 0,006). Ambos grupos presentaron una mejor percepción de la QoL genérica en comparación con el estado basal, y los problemas relacionados con la obesidad se redujeron considerablemente. CONCLUSIÓN: El bypass gástrico estándar (RYGB) y el bypass gastroyeyunal distal (DRYGJB) mejoraron la QoL, tanto genérica como la específica de la enfermedad, así como el patrón de comportamiento alimentario. El DRYGJB aumentó la diarrea más que el RYGJB.

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Figures

Fig. 1
Fig. 1
CONSORT diagram showing enrolment of patients in the study RYGB, Roux‐en‐Y gastric bypass; DRYGJB, distal Roux‐en‐Y gastrojejunal bypass; SF‐36®, Short Form 36; OP‐9, Obesity‐related Problems scale; TFEQ, Three‐Factor Eating Questionnaire; GSRS, Gastrointestinal Symptom Rating Scale.
Fig. 2
Fig. 2
Change over time in the domains of the Gastrointestinal Symptom Rating Scale for the two treatment groups a Distal Roux‐en‐Y gastrojejunal bypass (DRYGJB); b Roux‐en‐Y gastric bypass (RYGB). Increases over baseline scores for diarrhoea and indigestion were statistically significant for the DRYGJB group (P = 0·006 and P = 0·031 respectively, Wilcoxon test).
Fig. 3
Fig. 3
Change over time in Three‐Factor Eating Questionnaire scores for the two treatment groups a Distal Roux‐en‐Y gastrojejunal bypass (DRYGJB); b Roux‐en‐Y gastric bypass (RYGB). Each variable within the Three‐Factor Eating Questionnaire was compared between patient groups at four points in time using the Mann–Whitney U‐test. RYGB patient values were higher (P = 0·018) at 2 years, but did not differ between groups at any other time point. There were no differences between groups for the other variables.
Fig. 4
Fig. 4
Developments over time in the various domains of the Short Form 36 questionnaire for the two treatment groups a Distal Roux‐en‐Y gastrojejunal bypass (DRYGJB); b Roux‐en‐Y gastric bypass (RYGB). Higher values indicate better quality of life.
Fig. 5
Fig. 5
Compound scores for the Obesity‐related Problems scale for the two treatment groups Lower values indicate fewer problems (higher quality of life). OP, Obesity‐related Problems scale. Reduction from baseline values to 1‐, 2‐ and 5‐year scores was highly significant. There were no differences between distal Roux‐en‐Y gastrojejunal bypass (DRYGJB) and standard Roux‐en‐Y gastric bypass (RYGB) groups at any time point.

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