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Early and mid-term outcomes of minimally invasive mitral valve surgery in high operative risk patients at University Medical Center, Ho Chi Minh City
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Abstract
Introduction: Minimally invasive mitral valve surgery (MIMVS) has seen significant advancement in the past decades, offering numerous benefits to patients. However, there remain cohorts of patients with mitral valve pathologies, deemed at higher surgical risk, who may face rejection for MIMVS due to concerns regarding potential postoperative complications associated with this approach.
Objective: To assess early and midterm outcomes of MIMVS in higher-operative-risk patients at the University Medical Center of Ho Chi Minh City.
Methods: A retrospective descriptive study of the patients meeting our high operative risk criteria, who underwent mitral valve surgery at the University Medical Center of Ho Chi Minh City from January 2017 to March 2023.
Results: A total of 68 eligible cases were included in our study. The male-to-female ratio was 0.6:1. Among these cases, 21 patients underwent valve repair and 47 others underwent mitral valve replacement. 30.9% of cases presented with NYHA class III or above heart failure. The mean cardiopulmonary circulation time and aortic cross-clamp time were 157.4 ± 38.8 minutes and 102.7 ± 26.3 minutes, respectively. Three cases experienced minimally invasive surgery related complications, including one case of limb ischemia requiring fasciotomy, one case of femoral wound seroma, and one case of postoperative wound infection necessitating debridement. No instances of conversion to sternotomy or in-hospital mortality were observed. The mean ICU stay and postoperative length of stay at ward were 4.6 ± 3.5 days and 10.8 ± 5.9 days, respectively. Patients showed rapid recovery during the postoperative period. During ICU care, one patient suffered a non-disabling cerebrovascular accident, one case required continuous renal replacement therapy, three cases necessitated intra-aortic balloon pump placement, and three cases required reoperation due to hemorrhagic pleural effusion. During follow-up period, three patients died within 6 months, and another patient died after their surgery one year. Other patients had favorable outcomes at the time of discharge and at subsequent follow-up.
Conclusion: Minimally invasive mitral valve surgeries highlight the feasibility and safety of minimally mitral valve surgery in higher-operative-risk patients.
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Keywords
minimally invasive, minimally invasive mitral valve surgery, high risk patients
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