| Risk Factors Affecting Survival
Rates in Patients with Ruptured Abdominal Aortic Aneurysm(New
Factor, Shock Time Index) |
| Mitsunori Maeda |
Naoki Konagai |
Hiromi Yano |
| Masaharu Misaka |
Tatsuhiko Kudo |
Shin Ishimaru* |
(Department of Cardiovascular, Hachioji Medical
Center, Tokyo Medical University, Tokyo, Japan and Second Department
of Surgery, Tokyo Medical University*, Tokyo, Japan)
|
We tried to identify the risk factors
affecting the high mortality rates associated with ruptured abdominal
aortic aneurysm (AAA). The subjects consisted of 18 patients,
operated on for ruptured AAA, who were admitted to our hospital
between 1992 and 1999. The preoperative factors, which were hemoglobin
levels less than 9.0g/dl, creatinine levels higher than 2.1mg/dl,
type 4 on the Fitzgerald classification, shock state lasting
longer than 6h and a shock time index (the time from shock state
onset to the beginning of operation divided by the time from
complaint of abdominal pain to the beginning of operation) higher
than 0.3, were associated with increased intraoperative and overall
mortality rates. The postoperative factors, which were bleeding
and blood transfusion more than 6,000ml and an operating time
of more than 400 min, were associated with increased intraoperative
and overall mortality rates. It is concluded that these risk
factors were predictors of mortality and it is necessary to operate
early because of the risk factors.
Jpn. J. Cardiovasc. Surg. 31：24-28 (2002) |
|
