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NEIGRIHMS performs first-of-its-kind surgery in NE, constructs RAA derived Neo Pulmonary Valve for Pulmonary Valve Stenosis

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Shillong, June 30: The North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS) has achieved a significant milestone in the field of cardiac surgery by successfully conducting an Autologous Right Atrial Appendage (RAA) derived Neo Pulmonary Valve Construction surgery for a patient suffering from Pulmonary Valve Stenosis.

This groundbreaking surgery marks the first of its kind in the northeastern region of India.

Pulmonary valve stenosis is a form of heart valve disease characterized by the narrowing of the pulmonary valve, which regulates blood flow from the heart’s right ventricle to the lungs. The severity of symptoms varies depending on the extent of blood flow obstruction. Mild cases may be asymptomatic, while moderate to severe stenosis can cause fatigue, shortness of breath (especially during physical exertion), chest pain, and fainting.

Various techniques have been employed to replace a faulty pulmonary valve, utilizing the patient’s own tissue, donor tissue, or synthetic materials. However, these approaches often have limited durability.

In contrast, the newly developed valve using the patient’s own right atrial appendage (RAA) demonstrates superior longevity and effectiveness due to its unique properties. The RAA valve is made from the patient’s own tissue and does not need to be chemically treated. It is stretchable, flexible, and thin. Moreover, it is living tissue capable of growth alongside the patient, potentially eliminating the need for future valve replacements.


The intricate surgery was performed by a multidisciplinary team comprising doctors, nurses, and technical staff from the Cardiothoracic and Vascular Surgery (CTVS) department. Dr. Reuben Lamiaki Kynta, Associate Professor of CTVS, led the team, with support from Dr. Mercyful Lyngdoh and the CTVS OT staff. Dr. Sunny, Assistant Professor of Anaesthesiology, and his team provided anaesthesia support, while Dr. Amit Malviya, Associate Professor of Cardiology, and his team offered intraoperative cardiology and echocardiography assistance. Perfusion support was expertly managed by Mrinal Mandal, Sr. Perfusionist, and L Dkhar. Specialist postoperative cardiac care was provided by the Nursing staff of the CTVS-ICU and CTVS Ward.

The patient has been discharged and is currently symptom-free during the follow-up period.

NEIGRIHMS said this groundbreaking achievement as a major breakthrough in the treatment of pulmonary valve stenosis in the region, which will benefit many patients in the future.

Also read: Aminda Rangsa Village prepares to launch Garo Hills’ first zip-line spot


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