Background: Obesity surgery has shown to decrease the carotid intima-media thickness (IMT), but studies that compare different surgical techniques are scarce, especially in men.
Objective: To evaluate the changes in IMT in men after laparoscopic Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) and its association with circulating testosterone.
Setting: Academic Hospital.
Methods: We studied 40 men with severe obesity, of whom 20 were submitted to laparoscopic RYGB and 20 to SG. Twenty control men matched for age and degree of obesity were also included. Both patients and controls were evaluated at baseline and 6 months after surgery or conventional treatment with diet and exercise, respectively.
Results: The mean carotid IMT decreased after surgery irrespective of the surgical technique whereas no changes were observed in the control men submitted to conventional therapy (Wilks' λ = 0.745, P < 0.001 for the interaction, P < 0.001 for RYGB vs. controls, P = 0.001 for SG vs. controls, P = 0.999 for RYGB vs. SG). The decrease in the carotid IMT correlated with the increase in total testosterone (r = 0.428, P = 0.010) and lost BMI (r = 0.486, P < 0.001). Multivariate linear regression retained only the decrease in BMI (β = 0.378, P = 0.003) after adjustment (R = 0.245, F = 9.229, P = 0.001).
Conclusion: Both RYGB and SG decrease carotid IMT in men with obesity compared with conventional treatment with diet and exercise.
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