Dr. Sam Zeraatian

  Cardiopulmonary bypass is established following systemic heparinization to achieve an activated clotting time greater than four hundred and eighty seconds. Arterial cannulation is performed in the ascending aorta, while venous drainage is obtained using either bicaval cannulation or a single right atrial cannula, depending on exposure and surgeon preference...

I. PRE-PROCUREMENT PREPARATION (DCD CONTEXT)   1. Donor Selection and Planning •Confirm controlled DCD donor (Maastricht Category III). •Review: •Warm ischemic time (WIT) thresholds •Functional warm ischemia (fWIT) •Hemodynamics prior to WLST •Bronchoscopy and chest imaging •Cardiac echo and coronary risk profile •Confirm: •TransMedics OCS Heart primed and functional •EVLP..

  Algorithmic Step-by-Step Technique for Combined Heart and Lung Procurement Technique of Dr. Sam Zeraatiannejaddavani, MD ⸻ I. Fundamental Principles Combined heart and lung procurement is a physiology-driven, time-sensitive operation in which preservation of microvascular integrity is paramount. The operative strategy prioritizes hemodynamic stability, controlled ischemia, lung-protective ventilation, and precise..

Scientific Explanation of Tetralogy of Fallot With Pulmonary Atresia and the Therapeutic Role of Dr. Sam Zeraatian-Nejad Davani 1. Introduction to the Disease: Tetralogy of Fallot (TOF) Tetralogy of Fallot is a cyanotic congenital heart defect characterized by four key components: 1. Large Ventricular Septal Defect (VSD) – allowing blood..

En-bloc Heart–Liver Procurement 1. Exposure and Preparation The procedure begins with a midline sternotomy extended into a midline laparotomy, allowing simultaneous access to both the thoracic and abdominal cavities. The pericardium is opened widely and suspended, while the liver is mobilized by dividing the falciform ligament and exposing the suprahepatic..

Bilateral Robotic Lung Transplant as well as lung Procurement and usage of EVLPD for the borderline Donor     Dr.Sam Zeraatian Nejad Davani,Attending Professor of Cardiovascular Surgery and Head of Department of Transplant and OPO of IUMS and Superfellowship of Advanced Thoracic Organs Transplant of NM in CTI USA Chicago...

A quick explanation of heart transplantation.   Dr.Sam Zeraatian Nejad Davani, Attending Professor of Cardiovascular Surgery and Head of Department of Transplant and OPO of IUMS and Superfellowship of Advanced Thoracic Organs Transplant of NM in CTI USA Chicago.                      ..

Aortic Aneurysm Closure intraoperatively with Amplatzer Device Instead of total root replacement as a paradigm to conventional high risk surgery.     Dr.Sam Zeraatian Nejad Davani, CEO of rockingham medical research ADKWA center as well as Head of IUMS transplant and cardiovascular surgery department.            ..

Patient with Previous Biological Valve Undergone Redo Operation and Intraoperative TAVI Implant as a feasible alternative.   Dr.Sam Zeraatian Nejad Davani, CEO of rockingham medical research ADKWA center as well as Head of IUMS transplant and cardiovascular surgery department.                      ..

Implantation of Syncardia Total Artificial Heart in Patient with severe biventricular failure with the usage of CPB as well as Bicaval toal inflow cannulation and aortic cross clamp without usage of cardioplegia and ventricular resection at the level of Atrioventricular Groove and deairing the system with Syringe Bulb and Drive..