PRIMARY OUTCOMES OF ROSS-KONNO OPERATION AT VIETNAM NATIONAL CHILDREN’S HOSPITAL
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Abstract
Objective: Evaluation of the short-term outcomes of Ross-Konno operation at Heart Center, Vietnam National Children’s Hospital. Methods: From August 2016 to May 2022, 20 consecutive patients underwe22nt Ross-Konno operation at Heart Center, Vietnam National Children’s Hospital was retrospectively reviewed. Results: The median age and median weight of the patients in our study were 1.02 years (0.14 - 6.07 years) and 7.75 kg (3.7 - 26 kg), respectively. There were 15 males and 5 females. Preoperative diagnosis was: severe aortic valve stenosis (8 patients), severe aortic valve insufficiency (4 patients), and coarctation of the aorta-ventricular septal defect-left ventricular outflow tract obstruction (4 patients). The preoperative median Z-score of the aortic valve was -4.53 (-10.5, 0.75) in 16 patients who have aortic valve stenosis of left ventricular outflow tract obstruction. The mean aortic cross-clamp time was 131 ± 39.7 minutes, the mean bypass time was 190 ± 44 minutes, and the ventilation time was 168 hours (16.5 – 2420 hours). In-hospital mortality was 5% (1 patient) and late mortality was 5% (1 patient). The latest echocardiography showed 1 patient have mild-moderate aortic valve insufficiency, and all survivor have none or trivial aortic valve insufficiency. The median time of follow-up was 12 months (0.5 – 60 months), with 1 patient requiring reintervention due to right pulmonary stenosis. The survival of these patients was 88.2% at 5 years of follow-up. Conclusions: Primary results of the Ross-Konno operation at Heart Center, Vietnam National Children Hospital were good and effective. Another study with longer follow-up and a bigger number of patients was essential.
Article Details
Keywords
Ross-Konno operation, aortic valve stenosis, left ventricular outflow tract obstruction
References
2. Mallios DN, Gray WH, Cheng AL, Wells WJ, Starnes VA, Kumar SR. Biventricular Repair in Interrupted Aortic Arch and Ventricular Septal Defect With a Small Left Ventricular Outflow Tract. Ann Thorac Surg. 2021 Feb;111(2):637–44.
3. Alsoufi B, Al-Halees Z, Manlhiot C, Awan A, Al-Ahmadi M, McCrindle BW, et al. Intermediate results following complex biventricular repair of left ventricular outflow tract obstruction in neonates and infants☆. Eur J Cardiothorac Surg. 2010 Oct;38(4):431–8.
4. Mookhoek A, Charitos EI, Hazekamp MG, Bogers AJJC, Hörer J, Lange R, et al. Ross Procedure in Neonates and Infants: A European Multicenter Experience. Ann Thorac Surg. 2015 Dec;100(6):2278–84.
5. Herrmann JL, Clark AJ, Colgate C, Rodefeld MD, Hoyer MH, Turrentine MW, et al. Surgical Valvuloplasty Versus Balloon Dilation for Congenital Aortic Stenosis in Pediatric Patients. World J Pediatr Congenit Heart Surg. 2020 Jul;11(4):444–51.
6. Reddy VM, Rajasinghe HA, Teitel DF, Haas GS, Hanley FL. Aortoventriculoplasty with the pulmonary autograft: The “Ross-Konno” procedure. J Thorac Cardiovasc Surg. 1996 Jan; 111(1):158–67.
7. Donald JS, Wallace FRO, Naimo PS, Fricke TA, Brink J, Brizard CP, et al. Ross Operation in Children: 23-Year Experience From a Single Institution. Ann Thorac Surg. 2020 Apr;109(4):1251–9.