Impact of Preoperative Nutritional Status on Outcomes in Acute Type A Aortic Dissection

P0159 

Abstract Submission 

Takagi Yuki (1), Toshihito Gomibuchi (2), Tatsuichiro Seto (3)

(1) N/A, N/A, (2) Suwa red cross hospital, Matsumoto, Japan, (3) PhD, Matsumoto, NA

Takagi Yuki    -  Contact Me
N/A

Toshihito Gomibuchi    -  Contact Me
Suwa red cross hospital

Tatsuichiro Seto    -  Contact Me
PhD

Takagi Yuki    -  Contact Me
N/A

Abstract:
Although preoperative nutritional status is used to predict morbidity and mortality, its effect on the outcomes of acute type A aortic dissection (ATAAD) has not been examined. Thus, the objective was to evaluate the role of preoperative nutritional status in predicting postoperative morbidity and mortality in ATAAD.
Method:
A retrospective analysis of a prospectively maintained database was undertaken for all patients (580) undergoing emergency aortic surgery between May 2004 and February 2023. Preoperative nutritional status was evaluated using Geriatric Nutritional Risk Index (GNRI= 14.89 x serum albumin (g/dL) + 41.7 x body weight (kg) / ideal body weight (kg)). We classified into two groups, GNRI≧92 (group A), GNRI< 92 (group B).
Results:
Of all patients, 410 (70.5%), 170 (29.5%) were classified into group A, group B, respectively. In-hospital mortality rates were not significantly different (8.7% vs. 7.1%, respectively; P=0.69). About incidence of postoperative major morbidities were also not statistically different.
As for 5-year survival rates, 82.4%, 68.9%, were found in groups A and B, respectively, showing a significant difference between the groups (p=0.001). Independent risk factors of late mortality were preoperative nutritional status, preoperative cardiopulmonary resuscitation, previous cardiac surgery, elderly (>80 years), preoperative shock status, myocardial malperfusion, visceral malperfusion.
Conclusion:
Preoperative assessment of nutritional status using GNRI is an independent factor in the long-term prognosis of acute aortic dissection. This assessment method is simple to perform preoperatively and may provide useful information for predicting the postoperative mortality and morbidity in elderly patients.

Aortic Surgery Forum (Basic Aortic Research, Venue for Residents, Fellows, Junior Attendings)