Background: Women are advised to primarily use non-oral contraceptive alternatives after Roux-en-Y gastric bypass since it is not known if the surgery affects the pharmacokinetics of oral contraceptives.
Methods: This is a multi-center, open label, phase 2 pharmacokinetic study performed at the University Hospital of Linköping and the Clinical Trials Center, Department of Obstetrics and Gynecology, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden. Fifteen women aged 18-40 years who had previously undergone Roux-en-Y gastric bypass surgery and reached a BMI < 30 were included.
Eur J Contracept Reprod Health Care
June 2019
This study aimed to explore the prescription of different contraceptive methods to Swedish women with obesity and to compare the pattern of prescription and adherence to treatment between this group and normal-weight women. This study included 371 women with obesity and 744 matched normal-weight women, aged 18-40. Medical records were scrutinised for the period 1 January 2010 to 31 December 2014.
View Article and Find Full Text PDFObjective: To investigate whether Roux-en-Y gastric bypass (RYGB) affects oral desogestrel (etonogestrel) pharmacokinetics.
Design: Single centre, open label, phase-2 pharmacokinetic study.
Setting: University hospital of Linköping, Sweden.
Background: At present, women are recommended to avoid pregnancy 12-18 months after bariatric surgery. Our aim in this study was to describe patterns of contraceptive use before and after gastric bypass in Sweden, and to describe the contraceptive counseling given preoperatively to women undergoing gastric bypass.
Methods: In October 2012, a questionnaire was sent to 1000 Swedish women who all had undergone gastric bypass during 2010.