[Endovascular repair of abdominal aortic aneurysm: a clinical report of 81 cases].
OBJECTIVE
To evaluate the efficacy and safety of endovascular aneurysm repair (EVAR) for abdominal aortic aneurysm (AAA), and to compare the prognosis between patients of different ages.


METHODS
The hospitalization and follow-up data of 81 AAA patients treated by EVAR from May 2005 to May 2011 were retrospectively analyzed. All the patients were divided into advanced age group (age ≥ 75 years, 24 cases) and relatively young group (age < 75 years, 57 cases). General conditions, comorbidity, procedure, in-hospital complications, and follow-up were compared between these two groups.


RESULTS
All covered stents were successfully deployed, a technical success rate of 91.4% (74/81) was achieved. There was no intraoperative death. In-hospital mortality was 1.2% (1/81). The follow-up rate was 91.4% (74/81), with a mean follow-up of 47.5 months. Twelve deaths were recorded during follow-up, 1, 2, 3, 4, and 5-year survival rates were 98.6%, 92.2%, 80.8%, 58.7%, and 44.1%, respectively. When compared with relatively young group, the advanced age group had a lower rate of abdominal pain as the major symptom, but a higher rates of renal diseases and coronary artery diseases. Furthermore, the advanced age group had a longer stay in intensive care unit and higher morbidity of endoleaks, and also tended to have increased rates of pulmonary infection and access site hematoma, while the other parameters were similar between the two groups.


CONCLUSIONS
EVAR of AAA is less invasive, safe, and effective during short to mid-tern follow-up. The patients of advanced age suffer from higher rates of some complications, thus careful perioperative preparation and intensive monitor are mandatory for preventing or treating potential complications and improving prognosis for these patients.
Department of Vascular Surgery, the First Affiliated Hospital, Sun Yat-sen University, Research Center of Vascular Surgery, Sun Yat-sen University, Guangzhou 510008, China.
Guang-qi
GQ
Chang
Zi-lun
ZL
Li
Song-qi
SQ
Li
Cai-sheng
CS
Ye
Xiao-xi
XX
Li
Chen
C
Yao
Heng-hui
HH
Yin
Shen-ming
SM
Wang
D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects* / Q000379:methods; D057867:Endoleak / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate; D016896:Treatment Outcome