Swagata Tripathy1, Sheila Nainan Myatra2. 1. Department of Anesthesia and Intensive Care, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India. tripathyswagata@gmail.com. 2. Department of Anesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India.