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Robotic-assisted colorectal surgery in obese patients: a case-matched series

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Abstract

Background

Reports demonstrate laparoscopic colorectal surgery in obese patients is associated with higher conversion to laparotomy and complication rates. While several advantages of robotic-assisted surgery have been reported, outcomes in obese patients have not been adequately studied. Therefore, this study compares outcomes of robotic-assisted surgery in non-obese and obese patients.

Methods

A retrospective review of 331 consecutive robotic procedures performed at a single institution between 2009 and 2015 was performed. Patients were divided into non-obese (BMI <30 kg/m2) and obese (BMI ≥30 kg/m2) groups, and were clinically matched by gender, age, and procedure performed. Intraoperative and postoperative complications, operative time, estimated blood loss, and length of stay were examined.

Results

Following matching, each group included 108 patients comprised of 50 men and 58 women. Mean BMI was 24.6 ± 3.15 and 36.2 ± 5.67 kg/m2 (p < 0.0001), and the mean age was 59.2 ± 11.28 years for non-obese patients and 57.1 ± 12.44 for obese patients (p = 0.18). Surgeries included low anterior resection, right colectomy, left colectomy, sigmoid colectomy, excision of rectal endometriosis, total proctocolectomy, APR, subtotal colectomy, ileocecectomy, proctectomy, rectopexy, transanal excision of rectal mass, and colostomy site hernia repair. The mean operative time was 272.69 ± 115.43 and 282.42 ± 120.51 min (p = 0.55), estimated blood loss 195.23 ± 230.37 and 289.19 ± 509.27 mL (p = 0.08), conversion to laparotomy 6.48 and 9.26 % (p = 0.45), and length of stay 5.38 ± 4.94 and 4.56 ± 4.04 days (p = 0.18) for the non-obese and obese groups, respectively. Twenty of the non-obese patients had postoperative complications as compared to 27 of the obese patients (p = 0.30). However, the prevalence of wound complications was higher in obese patients (1.9 vs 9.3 %; p = 0.03).

Conclusion

There is no difference in conversion to laparotomy and overall complication rates in non-obese and obese patients undergoing robotic-assisted colorectal surgery. However, obesity is associated with a higher prevalence of wound complications. Robotic-assisted surgery may minimize conversion to laparotomy and complications typically seen in obese patients due to improved visualization, instrumentation, and ergonomics.

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Authors and Affiliations

  1. Department of Surgery, The George Washington University Medical Center, 2150 Pennsylvania Ave, NW, Suite 6B, Washington, DC, 20037, USA

    Jeffrey N. Harr, Samuel Luka, Yen-Yi Juo, Samir Agarwal & Vincent Obias

  2. University of Maryland at College Park, College Park, MD, USA

    Aman Kankaria

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  1. Jeffrey N. Harr
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  2. Samuel Luka
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  3. Aman Kankaria
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  4. Yen-Yi Juo
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  5. Samir Agarwal
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  6. Vincent Obias
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Correspondence to Vincent Obias.

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Disclosures

Drs. Harr, Luka, Kankaria, Juo, and Agarwal have nothing to disclose and have no financial relationships with device companies. Dr. Obias is a consultant for Intuitive Surgical and teaches courses on robotic-assisted colorectal surgery.

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Harr, J.N., Luka, S., Kankaria, A. et al. Robotic-assisted colorectal surgery in obese patients: a case-matched series. Surg Endosc 31, 2813–2819 (2017). https://doi.org/10.1007/s00464-016-5291-1

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  • DOI: https://doi.org/10.1007/s00464-016-5291-1

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