Introduction
Aortic valve disease (AVD) is the most common valvular heart disease in developed countries which accounts for more than 50% of open-heart surgeries in Europe.1,2 In Vietnam, AVD is also a common valvular heart disease. Worldwide, aortic valve replacement surgery using a prosthetic valve remains the standard method to treat patients with aortic valve disease who have indications for surgery.3 However, there are several limitations related to a prosthetic valve, such as lifelong administration of anticoagulants, premature degeneration of biological valve, and pannus formation in sub-valvular area.4,5,6 Therefore, aortic valve repair or reconstruction surgery has been increasingly considered.
Tuffier performed the first surgical commissurotomy of the aortic valve in 1913.7 Since cardiopulmonary bypass was invented and developed in 1954, many repair or reconstruction techniques have been reported with favourable outcomes.8,9 One method that has been applied in many countries with a plethora of successful operations is Ozaki’s procedure.10 This technique reconstructs individual cusps and was firstly performed in April 2007, Tokyo, Japan.11 In Vietnam, aortic valve reconstruction surgery has just been implemented recently with early results of feasibility and advantages have been reported.12,13 Therefore, we conducted this study with 02 objectives: (1) To evaluate the indications of aortic valve reconstruction surgery by Ozaki’s procedure at our hospital, (2) To report the mid-term outcomes of this method.