Apart from his vast experience in coronary intervention, he is also trained in the U.S, in cardiac electro physiology for treating cardiac arrhythmias with radio frequency ablation.
He has implanted various devices for cardiac arrhythmias and Heart failures. He has rich experience in non-coronary interventions and percutaneously treated many patients with structural heart disease, including endovascular repair for aortic aneurism. He has to his credit various papers in national and international journals and features regularly in national meetings as faculty.

Publication
• Peripheral Vascular disease in Behcet’s syndrome, a case report. The journal of invasive cardiology. Vol 11, No 9, September 1999. Ramdas H Nayak, Latchumana Dhas, Ajith S Mullasari

Paper Presentation
• Lipoprotien (a) and Coronary Artery Disease. Abstract presented at Annual conference, Cardiological Society of India, December 1999. Ramdas H Nayak, S Suvaini, Latchumana Dhas, Ajit S. Mullasari – Institute of cardiovascular diseases, Chennai.
• Corrected trans-position of the great arteries: Clinical profile and outcome after surgey. Abstract presented at annual conference, Cardiological Society of India, Decemeber 1999. Ramdas H Nayak, Usha S Krishnan, Puja Handa, Sharadha Srinivas, S Sudha, K M Cherian –Institute of Cardiovascular Diseases, Chennai.
• Haemodynamic profile and surgical outcome of anuerysim of sinus of Valsalva. Abstract presented at annual conference, Cardiological Society of India, December 1998. Latchumana Dhas, Ramdas H Nayak, S Selvi Rani, Usha Krishnan, Pramod K Jaiswal, Ajith S Mullasari, KM Cherian – Institute of Cardiovascular Diseases, Chennai.
• Intermediate and long term follow up of patients after valve replacement. Abstract presented at annual conference, Cardiological Society of India, December 1998. Ali Faizal, Latchumana Dhas, C Thahaseen, Ramdas H Nayak, Pramod K Jaiswal, Ajith S Mullasari, K M Cherian – Institute of Cardiovascular Diseases, Chennai.
• Practice pattern and intermediate follow up results with Paclitaxel – Eluting stents for coronary artery diseases. Ramdas H Nayak, Nirmal Kumar, Sonya, P G Pai, Mahesh Krishna Kumar, Prasanna Kumar, Vijaya Kumar, T Rajesh, K U Natarajan, Prakash Kamath, B V Pai, KK Haridas – Amrita Institute of Medical Sciences, Kochi. Abstract presented at annual conference, Cardiological Society of India.