Validity of shape memory NiTi colon ring BioDynamix ColonRing™ (or NiTi CAR 27™) to prevent anastomotic colorectal strictures. Preliminary results.
OBJECTIVE
Anastomotic strictures occur in 3-30% of colorectal anastomosis and one of the main causes may be a reaction to the presence of the metal staples used for suturing. The aim of this study was to evaluate the efficacy of a compression anastomosis ring using the memory shaped device in initial, i.e. nickel-titanium alloy (NiTi) for the prevention of colorectal anastomotic strictures.


METHODS
A compression anastomosis ring device (NiTi CAR 27™) was used to perform compression anastomosis in 20 patients underwent left hemicolectomy and anterior resection of the rectum for carcinoma. An endoscopic check of the anastomosis was carried out at one month and at six months after surgery.


RESULTS
In 2 patients (10%) a dehiscence of the anastomosis occurred on the fifth and the eighth postoperative day. No anastomotic strictures were observed in any of the other 18 patients at six months follow-up after surgery.


CONCLUSIONS
Our preliminary results suggest that the use of a compression anastomosis ring might well be a valid method of preventing anastomotic strictures in colorectal surgery. Further studies involving a larger number of patients are needed in order to confirm these preliminary results.
University of Palermo, Italy.
N
N
Grassi
C
C
Cipolla
A
A
Bottino
G
G
Graceffa
L
L
Montana
C
C
Privitera
Roberto
R
Grassi
M A
MA
Latteri
D000714:Anastomosis, Surgical; D003082:Colectomy; D003106:Colon / Q000601:surgery; D003251:Constriction, Pathologic; D006801:Humans; D012007:Rectum / Q000601:surgery