Transanal minimally invasive surgery for benign and malignant rectal neoplasia.
BACKGROUND
Transanal minimally invasive surgery (TAMIS), an alternative technique to transanal endoscopic microsurgery, was developed in 2009. Herein, we describe our initial experience using TAMIS for benign and malignant rectal neoplasia.


METHODS
This is an institutional review board approved, retrospective case series report.


RESULTS
TAMIS was performed in 32 patients for rectal adenoma (13), adenocarcinoma (16), and carcinoid (3). There were 14 women, with mean age 62 ± 15 years and body mass index 28 ± 5 kg/m(2). Lesion size ranged from .5 to 8.5 cm, distance from the dentate line 1 to 11 cm, and circumference of the lesion 10% to 100%. The mean operative time was 123 ± 62 minutes. Mean hospital length of stay was 2.5 ± 2 days. Complications included urinary tract infection (1), Clostridium difficile diarrhea (1), atrial fibrillation (1), rectal stenosis (1), and rectal bleeding (1).


CONCLUSIONS
TAMIS using a disposable transanal access platform is a safe and effective method to remove rectal lesions in this case series.
Department of Surgery, University of California, San Diego, CA, USA. Electronic address: emclemore@ucsd.edu.
Elisabeth C
EC
McLemore
Department of Surgery, Scripps Health Systems, San Diego, CA, USA.
Lynn A
LA
Weston
Department of Surgery, University of California, San Diego, CA, USA.
Alisa M
AM
Coker
Department of Surgery, University of California, San Diego, CA, USA.
Garth R
GR
Jacobsen
Department of Surgery, University of California, San Diego, CA, USA.
Mark A
MA
Talamini
Department of Surgery, University of California, San Diego, CA, USA.
Santiago
S
Horgan
Department of Surgery, University of California, San Diego, CA, USA.
Sonia L
SL
Ramamoorthy
D000230:Adenocarcinoma / Q000601:surgery*; D000236:Adenoma / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001003:Anal Canal / Q000601:surgery*; D002276:Carcinoid Tumor / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods*; D011183:Postoperative Complications; D012004:Rectal Neoplasms / Q000601:surgery*; D012007:Rectum / Q000601:surgery*; D012189:Retrospective Studies; D016896:Treatment Outcome
Endoscope; Rectal Mass; Rectal adenoma; Rectal cancer; Rectal carcinoid; Transanal endoscopic microsurgery; Transanal minimally invasive surgery