Vivekh critical, on ECMO support Updated: Updated: Health Secy., doctors say cardiac event not linked to vaccine Share Article AAA Health Secy., doctors say cardiac event not linked to vaccine Actor Vivekh, who suffered a heart attack on Friday, is in a critical condition and is on ECMO (Extracorporeal membrane oxygenation) support at SIMS Hospital in Chennai. Raju Sivasamy, vice-president, SIMS Hospital, told reporters that he was brought to the hospital in an unconscious state at 11 a.m. by his family members. An emergency team, along with cardiologists, resuscitated him. “He was shifted to the Cath lab, after an emergency coronary angiogram showed 100% blockage in his left anterior descending artery (LAD). He underwent angioplasty and is currently in the intensive care unit on ECMO support,” he said.