Dr. Sam Zeraatian

    Managing complex congenital anomalies during multi-organ donor procurement requires precise surgical tailoring to preserve the structural integrity of the heart. When faced with a donor harboring both a Double Aortic Arch (a complete vascular ring) and a Bovine Arch configuration (where the left common carotid artery arises from..

  Oxygenated Cardioplegia (OCP) using a blood-based vehicle represents a significant shift from traditional cold crystalloid preservation during multi-organ heart and lung procurements. By leveraging a mixture of oxygenated donor blood and cold cardioplegic crystalloid substrate, this technique minimizes the profound metabolic shock of initial ischemia by maintaining aerobic cellular..

    Navigating the Anatomical Storm: Complex Heart-Lung Procurement and Back-Table Reconstruction   In the high-stakes arena of cardiothoracic transplantation, procurement surgery is often treated as a standardized exercise. Surgeons rely on predictable anatomy to efficiently protect and harvest donor organs. However, when a donor presents with a cluster of..

      Procuring organs from a complex donor presenting with a double Azygos system, anatomically corrected malposition of the great arteries (ACMGA), a hypoplastic left hemithorax, and severe kyphoscoliosis requires meticulous anatomical mapping and tailored surgical access. Given the severe chest wall and spinal deformity, a standard midline sternotomy..

    Dr.Sam Zeraatian Nejad Davani,  Cardiovascular and Transplant surgeon. Advanced Fellow of Thoracic Organs Transplantation Chicago Illinois.                                    

Technical Draft and Procedural Overview Introduction Retrograde priming during TransMedics Organ Care System (OCS) Heart cardiac procurement is an advanced perfusion maneuver designed to optimize coronary de-airing, improve myocardial washout, reduce embolic burden, and establish controlled myocardial reperfusion prior to normothermic ex vivo perfusion. The technique is particularly valuable in..

  Conceptual Framework: Bilateral Pneumonectomy + Lung Transplant with Dynamic ECMO Support (DREAM-style strategy) 1. Clinical Context & Rationale This scenario typically applies to: * End-stage bilateral lung malignancy confined to thorax (selected cases only) * No viable native lung preservation strategy * Need for complete cardiopulmonary support during en..

    The reversed valved Potts shunt is an advanced surgical strategy for patients with severe Pulmonary Hypertension, designed to create a controlled extracardiac communication between the left pulmonary artery and descending aorta using a unidirectional valved conduit. Its mechanism relies on suprasystemic pulmonary artery pressures, which drive right-to-left shunting..

  1. Preoperative Planning & Coordination •Multidisciplinary alignment (cardiac surgery, transplant hepatology, anesthesia, perfusion) •Donor organ assessment and synchronized timing of procurement •Hemodynamic optimization and coagulation planning •blood products (massive transfusion readiness)   ⸻   2. Surgical Exposure •Median sternotomy + laparotomy (simultaneous or staged) •Establish invasive monitoring (TEE, PA..

      Dr.Sam Zeraatian Nejad Davani, Cardiovascular and Transplant surgeon. Advanced Fellow of Thoracic Organs Transplantation Chicago Illinois.