• Peripheral Vascular intervention
• Balloon valvuloplasty, Pacemaker implantation, Coronary intervention

• Venkateswararao S, Rajendiran G, Shanmuga Sundaram R, Mounika G. Kounis syndrome secondary to intravenous cephalosporin administration. J Pharmacol Pharmacother. 2015 Oct-Dec;6(4):225-7
• Shanmuga Sundaram Rathakrishnan, Murali Alagesan, Tamilarasu Kaliappan, Rajendiran Gopalan. Recurrent Iodinated Contrast Material-Induced Sialadinitis: Heart India 2015 Oct – Dec ;3(4)
• Shanmuga sundaram rathakrishnan, Tamilarasu,Rajendiran Beware of Venous Anomalies in Young Patients with Sick Sinus Syndrome: A Report of Two Cases of Sick Sinus Syndrome with Systemic Venous Anomalies. Heart Views 2015;16:107-10
• R Shanmuga sundaram, G Rajendiran, MB Pranesh, E Prasanna Venkatesan Transient memory steal: A rare phenomenon of subclavian steal syndrome. Journal of postgraduate medicine 2015.Jan-Mar; 61 (1):54
• Shanmuga sundaram Rathakrishnan, Rajendiran Gopalan, Tamilarasu Kaliappan All Breathlessness in Mitral Stenosis is Not Pulmonary Edema- A Case of Mitral Stenosis with Cardio Respiratory Arrest. Journal of Cardiovascular Disease Research 2014 .Oct-Dec; 5(4):57-9
• Shanmuga sundaram Rathakrishnan, Murali alagesan, Rajendiran.G Therapeutic dilemma- Acute coronary syndrome in the presence of severe mitral stenosis Journal of Indian College of Cardiology 2014. June;4(2):128
• Joseph G, Thomson VS, Shanmuga sundaram.R. Corsair microcatheter for retrograde coronary chronic total occlusion recanalization: early experience outside the realm of dedicated recanalization specialists. Indian Heart J. 2012 Jul-Aug; 64 (4): 388-93
• Shanmuga Sundaram R, Tamilarasu K, Rajendiran G, Murali A An uncommon presentation of a rare disease – high-degree AV block with takotsubo cardiomyopathy. Indian Heart J. 2012 Sep-Oct; 64 (5): 511-4

Research activities

• Conducted a project work on “Clinical and angiographic profile of patients presented with aortoarteritis” at Institute of Internal Medicine, Madras Medical College, Chennai. (2004)
• Conducted a study on “Assessment of Usefulness of various pacing methods in differentiating AVNRT from AVRT with septal bypass tracts” at Sri Chitra Tirunal Institute of Medical Sciences and Technology, Trivandrum, Kerala. (2006)
• Conducted a study on “Assessment of vascular function in patients with post coarctation repair by brachial artery flow mediated dilatation” at Sri Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala. (2006)
• Uterine AV malformation: Case series and literature review Dr.Lalitha, Dr.Seetha paniker, Dr.R.Shanmuga sundaram, Dr.Rajendiran G poster at RCOG World Congress 2014 Hyderabad

• Cardiological Society of India
• CSI – Coimbatore Chapter