Pericardial tamponade after chronic total occlusion revascularization: a case report and literature review.
2021
Pericardial tamponade is a complication of percutaneous coronary intervention (PCI) with extremely high mortality. The rupture of coronary artery causes hypotension and shock, eventually resulting in death due to pericardial tamponade. Because of the complex operation in revascularization of chronic total occlusion (CTO-PCI) lesion, the incidence of pericardial tamponade increases. Usually, we use coronary angiogram to identify the rupture of coronary artery after PCI by the contrast agent. We presented a 67-year-old woman with pericardial tamponade after CTO revascularization. She had chest pain and out of breath for nearly two years. The coronary angiogram showed three branch lesion and CTO lesion of the right coronary artery (RCA). After revascularization of the RCA CTO lesion, the pericardial effusion and low blood pressure occurred, but we didn't find the leak of contrast agents during the final angiography. Then the patient was transferred to cardiac surgery department for emergency thoracotomy. They found the hematoma on the surface of the RCA and finally discharged without any symptoms. Our case approved: (I) there was still the possibility of coronary artery rupture even the coronary angiogram showed no contrast agent leakage from the coronary artery after PCI; (II) the combined use of IVUS and coronary angiogram may improve the accuracy and safety of CTO revascularization procedure.
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