Music Composer Mikis Theodoraakis has successfully undergone surgery after doctors implanted a pacemaker.

The Athens Medical Clinic released a press statement on the surgical procedure and the course of the 94-year-old’s health.

The world-famous composer is spending his 11th day in hospital undergoing treatment at the Athens Medical Centre clinic after he was diagnosed with suffering from an irregular heart rate known as atrial fibrillation.

According to the official statement released by the hospital, “Music composer Mikis Theodorakis was admitted to the hospital on Tuesday, February 26 after an episode of dyspnoea and tachyarrhythmia, a condition of fast heart rates. From that moment on, he was provided intravenous treatment as doctors ascertained the “aggravating condition of recurrent atrial fibrillation”.

“He continues to undergo treatment”, the statement read.