Obesity Surgery

, Volume 28, Issue 4, pp 1025–1030 | Cite as

The Factors Affecting Lower Urinary Tract Functions in Patients Undergoing Laparoscopic Sleeve Gastrectomy

  • Haci Murat Cayci
  • Sedat Oner
  • Umut Eren Erdogdu
  • İdris Nas
  • Evren Dilektasli
  • Murat Demirbas
Original Contributions



We prospectively assessed changes in the lower urinary system functions of women with morbid obesity following laparoscopic sleeve gastrectomy and the factors affecting these changes.


Data from 40 females who had undergone laparoscopic sleeve gastrectomy due to morbid obesity (body mass index, BMI ≥ 40 kg/m2) between January 2014–2016 at S.B.U. Bursa Yuksek Ihtisas Training and Research Hospital were prospectively evaluated. The presence of comorbidities, onset of obesity, smoking, American Society of Anesthesiologists (ASA) score, pre and 12-month postoperative weights and BMIs, fasting blood glucose (FBG), blood urea nitrogen, creatinine, insulin, homeostatic model assessment-insulin resistance (HOMA-IR) test results, overactive bladder survey (OAB-Q) scores, volume of urination, and Qmax values obtained from uroflowmetry studies were recorded and assessed.


Statistically significant differences in weight, BMI, FBG, insulin, HOMA-IR score and creatinine values pre-operation, and the corresponding values obtained at 12 months post-operation were observed (all, p < 0.001). OAB-Q scores were observed to be statistically significantly lower in the postoperative period relative to those in the preoperative period (p < 0.001). Urination volume was statistically significantly higher during the postoperative period (p = 0.048) than during the preoperative period. Non-smoking patients showed a reduction in OAB-Q score and a statistically significant increase in urination volume during the postoperative period (p < 0.001, p = 0.011, respectively); smoking patients indicated a statistically significant reduction in OAB-Q score only during the postoperative period; however, urination volume was not statistically significant between two groups (p = 0.013, p = 0.303). In patients with an ASA score of 1, preoperative OAB-Q scores were statistically significantly lower (p = 0.035) than those obtained post-operation. Patients with childhood-onset obesity showed statistically significantly increased urination volumes during postoperative period in comparison with values obtained pre-operation (p = 0.042).


Improvements in lower urinary system functions were affected by patient-related factors, such as comorbidity, obesity onset, smoking, ASA score, and weight loss, following laparoscopic sleeve gastrectomy.


Morbid obesity Laparoscopic sleeve gastrectomy Lower urinary system functions 


Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.

Ethical Approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed Consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Haci Murat Cayci
    • 1
  • Sedat Oner
    • 2
  • Umut Eren Erdogdu
    • 1
  • İdris Nas
    • 2
  • Evren Dilektasli
    • 1
  • Murat Demirbas
    • 2
  1. 1.Department of General Surgery, Bursa Yuksek Ihtisas Teaching and Research HosiptalBursaTurkey
  2. 2.Department of UrologyBursa Yuksek Ihtisas Teaching and Research HospitalBursaTurkey

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