Incidence and Impact of Patient-Prosthesis Mismatch in Isolated Aortic Valve Surgery.
OBJECTIVE
The mains topics of this work are the incidence of patient-prosthesis mismatch and the influence in the early results of isolated aortic valve surgery.


METHODS
In 193 patients isolated aortic valve surgery was performed. The study population was divided in three subgroups: 20 patients with severe, 131 patients with moderate and 42 patients without patient-prosthesis mismatch. The indexed effective orifice area was used to define the subgroups. Operative mortality and perioperative complications were considered the indicators of the early results of aortic valve surgery.


RESULTS
The incidence of severe and moderate patient-prosthesis mismatch was respectively 10.3% and 67.8%. Hospital mortality and perioperative complications were: mortality 5% vs. 3.1% vs. 2.4% (p = 0.855), low cardiac output 5% vs. 6.9% vs. 4.8% (p = 0.861); pulmonary complications 5% vs. 3.1 vs. 0.0% (p = 0.430); exploration for bleeding 5% vs. 0.8% vs. 2.4% (p = 0.319); atrial fibrillation 30% vs. 19.8% vs. 11.9% (p = 0.225); wound infection 5% vs. 0.8% vs. 0.00% (p = 0.165), respectively for the group with severe, moderate and without patient-prosthesis mismatch.


CONCLUSIONS
Patient-prosthesis mismatch is a common occurrence in aortic valve surgery. This phenomenon does not affect the early results of aortic valve surgery.
Service of Cardiac Surgery, University Hospital Center "Mother Theresa", Tirana, Albania.
Selman
S
Dumani
Service of Cardiac Surgery, University Hospital Center "Mother Theresa", Tirana, Albania.
Ermal
E
Likaj
Service of Cardiac Surgery, University Hospital Center "Mother Theresa", Tirana, Albania.
Andi
A
Kacani
Service of Cardiac Surgery, University Hospital Center "Mother Theresa", Tirana, Albania.
Laureta
L
Dibra
Service of Statistics, University Hospital Center "Mother Theresa", Tirana, Albania.
Elizana
E
Petrela
Obstetrics and Gynecology Hospital "Queen Geraldine", Tirana, Albania.
Vera
V
Beca
Service of Cardiac Surgery, University Hospital Center "Mother Theresa", Tirana, Albania.
Ali
A
Refatllari
aortic valve; patient-prosthesis mismatch; valve prosthesis