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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
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[Pulmonary complications after minimally invasive aortic valve replacement surgery - a propensity score matching

Jarosław Stoliński, Dariusz Plicner, Michał Mędrzycki

    Przeglad Lekarski
    |April 27, 2018
    PubMed
    Abstract

    Insights

    Minimally invasive aortic valve replacement (RT-AVR) did not increase pulmonary complications compared to conventional aortic valve replacement (AVR). This study found similar rates of respiratory issues between the two surgical approaches.

    Area of Science:

    • Cardiovascular Surgery
    • Thoracic Surgery
    • Minimally Invasive Procedures

    Background:

    • Aortic valve replacement (AVR) is a common cardiac procedure.
    • Minimally invasive techniques, such as right anterior minithoracotomy (RT-AVR), are increasingly adopted.
    • The impact of RT-AVR on postoperative pulmonary complications requires thorough investigation.

    Purpose of the Study:

    • To compare the incidence of postoperative pulmonary complications between RT-AVR and conventional AVR.
    • To evaluate differences in outcomes such as hospital stay, ICU stay, and specific respiratory events.

    Main Methods:

    • Retrospective analysis of 424 patients (212 RT-AVR, 212 AVR) between January 2011 and December 2014.
    • Propensity score matching was used to ensure comparable patient groups.
    • Analysis focused on respiratory system complications, blood drainage, and length of hospital/ICU stay.

    Main Results:

    • No significant difference in the overall rate of pulmonary complications (13.7% RT-AVR vs. 17.0% AVR, p=0.364).
    • RT-AVR group showed significantly lower postoperative blood drainage (353±249 ml vs. 524±325 ml, p<0.001) and shorter hospital (5.7±1.6 vs. 8.5±4.3 days, p<0.001) and ICU stays (1.3±1.2 vs. 2.6±2.8 days, p<0.001).
    • Lower incidence of mediastinitis (0.0% vs. 2.8%, p=0.020) and higher phrenic nerve dysfunction (3.8% vs. 0.0%, p=0.006) were noted in RT-AVR.

    Conclusions:

    • Minimally invasive RT-AVR does not lead to an increased rate of postoperative pulmonary complications compared to conventional AVR.
    • RT-AVR offers significant benefits in reduced blood loss and shorter hospital and ICU stays.
    • COPD and increased postoperative blood loss are identified risk factors for pulmonary complications.

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