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Right ventricular outflow tract obstruction after bilateral lung transplantation
F Chen1, N Hanaoka, S Hasegawa
1Thoracic Surgery, Kyoto University, Kyoto, Japan.
The Thoracic and Cardiovascular Surgeon
|January 27, 2009
Summary
Successful treatment for right ventricular outflow tract obstruction was achieved in a primary pulmonary hypertension patient post-lung transplant using atelenol and disopyramide. Long-term follow-up confirmed no significant obstruction, suggesting potential cardiac structural changes from prior hypertension.
Area of Science:
- Cardiology
- Pulmonary Medicine
- Transplantation Surgery
Background:
- Primary pulmonary hypertension presents significant challenges, often necessitating advanced interventions like lung transplantation.
- Right ventricular outflow tract (RVOT) obstruction is a potential post-transplant complication that requires careful monitoring and management.
Observation:
- A 31-year-old female with primary pulmonary hypertension underwent successful bilateral lung transplantation.
- One week post-transplant, the patient exhibited a 30 mmHg pressure gradient across the RVOT.
Findings:
- The RVOT obstruction was effectively treated with a combination of atelenol and disopyramide.
- Subsequent cardiac catheterization revealed no significant residual RVOT obstruction, indicating a successful therapeutic outcome.
Implications:
- This case highlights a viable pharmacological approach for managing RVOT obstruction in lung transplant recipients.
- Longstanding pulmonary hypertension may induce irreversible structural cardiac changes, contributing to post-transplant complications.
- Further research is warranted to elucidate the precise mechanisms causing RVOT obstruction in this context.
