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Transanal Pull‐Through Rectal Amputation for Treatment of Colorectal Carcinoma in 11 Dogs
Author(s) -
MORELLO EMANUELA,
MARTANO MARINA,
SQUASSINO CHIARA,
IUSSICH SELINA,
CACCAMO ROBERTA,
SAMMARTANO FEDERICA,
ZABARINO SARA,
BELLINO CLAUDIO,
PISANI GUIDO,
BURACCO PAOLO
Publication year - 2008
Publication title -
veterinary surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 79
eISSN - 1532-950X
pISSN - 0161-3499
DOI - 10.1111/j.1532-950x.2008.00404.x
Subject(s) - medicine , rectum , surgery , colorectal cancer , amputation , adenocarcinoma , colorectal adenocarcinoma , descending colon , cancer
Objective— To evaluate outcome after transanal rectal pull‐through amputation of single colorectal adenocarcinoma and in situ carcinoma (T is ) in dogs. Study Design— Retrospective case series. Animals— Dogs (n=11) with colorectal cancer. Methods— Full‐thickness colorectal amputation by either simple transanal (7 dogs) or combined abdominal–transanal (4) pull‐through technique. Results— Adenocarcinoma (8) and T is (2) were removed with 3–6 cm of grossly normal tissue, cranial and caudal to the tumor, or in 1 T is with 2 cm grossly normal tissue, cranial and caudal. Two dogs that had a combined abdominal–transanal approach died within 4 days. In the other dogs, postoperative complications included short‐term tenesmus (6 dogs), rectal bleeding (11), rectal stricture (3), and long‐term fecal incontinence (1). Postoperative recurrence and metastatic rates for adenocarcinoma were 18.2% and 0%, respectively. Median disease‐free interval and survival time were not reached. Mean disease‐free and overall survival times were 44.3 and 44.6 months (range, 0–75 months), respectively. Conclusion— En bloc excision of colorectal T is and adenocarcinoma may be followed by a long survival. Complications of the transanal approach are usually moderate and self‐limiting, but complications are more common and severe when more extensive resections are performed through a combined abdominal–transanal approach. Clinical Relevance— Transanal rectal pull‐through amputation is suitable for en bloc resection of colorectal neoplasia. A combined abdominal–transanal approach should be reserved for tumors extending from the mid‐cranial region of the rectum to the descending colon.