Hypogastric artery bypass in open repair of abdominal aortoiliac aneurysm: a safe procedure.
OBJECTIVE
The aim of this study is to assess the immediate and mid-term results of hypogastric artery bypass (HAB) in open repair of abdominal aortic aneurysm (AAA).


METHODS
The clinical data of 24 patients with an average age of 70.4 years [standard deviation (S.D.)+/-8.1 years] with AAA treated between January 2005 and December 2008 with HAB during open repair of aortoiliac aneurysm were reviewed. Eighteen patients received unilateral and six bilateral hypogastric bypasses, using a segment of Dacron graft prosthesis. Concomitant hypogastric eversion endarterectomy was associated in six cases (25%). Follow-up was complete in all the 24 patients and averaged 16.2 months (range 1-35). Postoperative imaging protocol involved a conventional Echocolordoppler and CT-scan. With respect to the operating time, the blood loss, the intensive care unit (ICU) and the length of ward admission (LWA) stay, we compared the 24 patients who underwent hypogastric bypass (group A) with the 50 patients who had bifurcated graft without hypogastric bypass (group B).


RESULTS
Between the two groups, statistically different results were demonstrated only with respect to the duration of operation (h) (group A 5.19+/-1.38 vs. group B 4.39+/-1.32, P=0.0195). No statistical differences were noted for ICU stay (h) (group A median 21.50 vs. group B median 21.3, range 1 degrees -3 degrees quartile 19.75-23.50) and LWA stay (days) (group A median 8.50, range 1 degrees -3 degrees quartile 7.00-11.50 vs. group B median 8.0, range 1 degrees -3 degrees quartile 7.00-9.00). There were no operative deaths, bowel or intestinal ischemia in the early postoperative period between the two groups. In group A, one patient had transient renal failure and one patient had an acute coronary syndrome. In group B, one patient had a peripheral ischemia who required tibioperoneal embolectomy. The patency of the hypogastric grafts was demonstrated in all cases.


CONCLUSIONS
In our experience, direct revascularization of the hypogastric artery to ensure pelvic vascularization in aortoiliac surgery appears a safe procedure.
Milite
Domenico
D
Operative Unit of Vascular and Endovascular Surgery, San Bortolo Hospital, Vicenza, Italy.
Campanile
Francesco
F
Tosato
Federico
F
Pilon
Fabio
F
Zaramella
Massimiliano
M
D000368:Aged; D000792:Angiography / Q000379:methods; D017130:Angioplasty / Q000009:adverse effects / Q000379:methods*; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000379:methods*; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D017543:Iliac Aneurysm / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012189:Retrospective Studies; D018570:Risk Assessment; D012720:Severity of Illness Index; D013270:Stomach / Q000098:blood supply; D015996:Survival Rate; D016896:Treatment Outcome; D014654:Vascular Patency / Q000502:physiology