Table 1. Disease progression and treatment response.

Timeline	Patient’s condition
Initial procedure	Successful CTO-PCI was performed but with septal hematoma formation, which was treated conservatively
1 h post-procedure	Echocardiogram with obstruction of the right ventricle
Day 10 post-procedure	Discharged from the hospital
2 weeks after discharge	Seen in follow-up clinic with no anginal symptoms or limitations
One month after the procedure	MCE with complete resolution of a septal hematoma

CTO-PCI, chronic total occlusion percutaneous coronary intervention; MCE, myocardial contrast echocardiography.