APPROPRIATE TIMING TO CLOSE THE SESSION OF BALLOON PULMONARY ANGIOPLASTY FOR PATIENTS WITHCHRONIC THROMBOEMBOLIC PULMONARY HYPERTENSION

The safety of balloon pulmonary angioplasty (BPA) for chronic thromboembolic pulmonary hypertension (CTEPH) has been dramatically improved for a decade but is still an emerging treatment. Usually, 4-6 sessions are required to complete the treatment, but the timing for closing each session is under