A Clinical Application Study Of Endovascular Repair Of Abdominal Aortic Aneurysm

Objective: Discussions on the difference in the risk factors between asymptomaticabdominal aortic aneurysm and symptomatic abdominal aortic aneurysm, andevaluations about the effects of endovascular repair of abdominal aortic aneurysm.Materials and methods: Retrospective analysis the clinical data about75cases withAAA, who have been treated in First Affiliated Hospital of Dalian Medical Universityfrom January2008to December2013, all of them were treated by endovascular repairmethod. We divided them into two teams asymptomatic abdominal aortic aneurysmteam and symptomatic abdominal aortic aneurysm team, collected, summarized andanalysis their clinical data in these aspects: preoperative examination and evaluation,operation technique, postoperative treatment and follow-up.Results: Their average (±SD) age was70±8years,the oldest one was81yearsold,the youngest one was41years old,64of the patients(85%) are men,patients werefollowed until April2014,9patients were lost to follow up in term of mortality.30-dayoperative mortality was6.7%(5cases),6-year all-cause mortality was24%(16cases),6-year aneurysm-related mortality was12%(9cases),30-day reintervention rate was4%(3cases),6-year reintervention rate was17.3%,(13cases),30-day rate of graft-relatedcomplications was24%(18cases),6-year rate of graft-related complications was37%(28cases).Among75patients,47patients were symptomatic abdominal aortic aneurysm28patients were asymptomatic abdominal aortic aneurysm. The two groups haddifference in their age, the prevalence rate of hypertension, diabetes, ischemiccerebrovascular diseases, peripheral arterial disease, the extent of mural thrombus,reintervention rate and the rate of graft-related complications. Afore-mentioned difference had statistical sense.Conclusions: The onset age and gender of abdominal aortic aneurysm have acharacteristic distribution, the morbidity of AAA is positively related with age. Themorbidity of male patients was much higher than that of female patients, for more than60years old person (especially men), especially with hypertension and hyperlipidemia,should strengthen the population screening and the related physical examination,tohave benefit for the early diagnosis and treatment.The extent of systemic arteriosclerosisof symptomatic abdominal aortic aneurysm was lower than that of control group. Thedifference in the extent of aneurysm mural thrombus, the blood cell test beforeoperation and immunological index indicates that the reason may be related to theinflammation effect and the hemodynamic factors of AAA. As to the symptomaticabdominal aortic aneurysm, we should strengthen the postoperative follow-up and dealwith the complications as soon as possible. Endovascular repair of abdominal aorticaneurysm is a safe and effective treatment with small trauma and rapid recovery.