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[Post-operative respiratory management of patients with ventricular septal defect with pulmonary hypertension
1Department of Anesthesia and Cardiovascular Surgery, Akane-kai Tsuchiya General Hospital, Hiroshima.
Insights
Younger infants with VSD+PH require longer mechanical ventilation (MV) after surgery. Cardiopulmonary bypass duration impacts post-operative pulmonary function in these vulnerable patients.
Area of Science:
- Pediatric Cardiology
- Thoracic Surgery
- Respiratory Medicine
Background:
- Ventricular Septal Defect (VSD) with Pulmonary Hypertension (PH) presents complex post-operative challenges.
- Optimizing respiratory management is crucial for improving outcomes in affected infants and children.
Purpose of the Study:
- To compare post-operative respiratory management between younger infants and older children with VSD+PH.
- To identify factors influencing the duration of mechanical ventilation (MV) post-surgery.
Main Methods:
- Retrospective analysis of 16 patients with VSD+PH undergoing surgical repair.
- Group I: 6 patients under 6 months; Group II: 10 patients 6 months or older.
- Comparison of oxygenation and mechanical ventilation duration between groups.
Main Results:
- Group I patients exhibited poorer oxygenation and required significantly longer MV.
- In Group I, MV duration correlated with cardiopulmonary bypass time.
- Group II patients demonstrated shorter MV requirements.
Conclusions:
- Immature pulmonary function and severe PH in younger infants contribute to prolonged MV needs.
- Cardiopulmonary bypass duration is a potential factor influencing post-operative pulmonary function and recovery.
- Age-specific respiratory management strategies are essential for VSD+PH patients.
Abstract:
Post-operative respiratory management was evaluated in patients with VSD+PH. Comparison was made between Group I (6 patients under 6 months) and Group II (10 patients 6 months or above). Oxygenation after surgical operation in Gp I was poor and the patients needed longer period of mechanical ventilation (MV), while Gp II patients required shorter duration of MV. In Gp I, the duration of MV after the cardiac surgery correlated with the length of cardiopulmonary bypass. In conclusion, cardiopulmonary bypass may influence the post-operative pulmonary function and patients who require longer period of MV are younger infants or newborns whose pulmonary function is immature and PH is severe.