PREDICTORS FOR WEIGHT LOSS FAILURE FOLLOWING ROUX-EN-Y
					GASTRIC BYPASS

It is a retrospective cohort which enrolled 187 subjects who underwent RYGB. Comparisons were made between patients’ features at baseline and 24 months after surgery.

Results

A weight loss failure rate of 11.2% was found. Advanced age and diabetes were statistically associated with failure.

Conclusions

The results found were close to previous reports. As weight loss failure represents an important concern, there is the possibility to perform revisional surgeries, which may emphasize the restrictive or malabsorptive characteristics of RYGB, leading to varied results. It is reinforced that weight loss cannot be used as the unique outcome to evaluate the success of surgery.

Bariatric surgery; Gastric bypass; Weight loss; Obesity; Biliopancreatic diversion

Age (years)	40 ± 10.3 (range, 18-66)
Gender
Masculine	33 (17.7%)
Female	154 (82.3%)
BMI (kg/m²)	38.5 ± 3 (range, 35-46.2)
T2DM	94 (50.3%)
Hypertension	110 (58.8%)
Insulin usage	21 (11.2%)

	Failure	Non-failure	P-Value
Age (years)	45.1 ± 9.8 (range, 25-58)	39.1 ± 10.1 (range, 18-65)	0.0209
Gender			0.8582
Male	4 (19.1%)	29 (17.5%)
Female	17 (80.9%)	137 (82.5%)
Preoperative BMI (kg/m²)	37.8 ± 2.8 (range, 35-45.3)	38.8 ± 3 (range, 35-46.2)	0.2090
%EWL	37.6 ± 12.6% (range, 3-49.3)	87.3% ± 23 (range, 50.5-166.6)	<0.0001
T2DM	15 (71.4%)	79 (47.6%)	0.0460
Hypertension	15 (71.4%)	95 (57.3%)	0.2184
Insulin usage	5 (23.8%)	16 (9.6%)	0.0619

Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia e Outras Especialidades - IBEPEGE. Rua Dr. Seng, 320, 01331-020 São Paulo - SP Brasil, Tel./Fax: +55 11 3147-6227 - São Paulo - SP - Brazil
E-mail: secretariaarqgastr@hospitaligesp.com.br

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[1] Correspondence: Everton Cazzo. Dept. de Cirurgia - UNICAMP. R. Alexander Fleming, s/n; 13083-887, Campinas, SP, Brasil. E-mail: notrevezzo@yahoo.com.br