Ultrasound-Guided Regional Anesthesia in a Patient with Complex Congenital Heart Disease and Acquired Valvular Heart Disease: A Case Report. - Kaasat, Ankita; Thakore, Sakshi; Padhiyar, Jinkal Bharatkumar; Kaushik, Suman (Medical Journal of Dr. D.Y. Patil Vidyapeeth, 2025)