Organ care system

The Organ Care System (OCS) is a medical device designed by Transmedics to allow donor organs to be maintained for longer periods of time prior to transplant. The system mimics the elements of human physiology and keeps organs in an environment and temperature similar to the human body. The system allows for organ preservation that last longer than the standard organ preservation method of putting organs on ice, static cold storage, which can cause cold ischemia. When put on ice, organs begin to deteriorate about three to four hours after retrieval.[1][2] On the other hand, the Paragonix SherpaPak Cardiac Transport System can offer uniform cooling by suspending the donor heart in a preservation solution and provides continuous temperature monitoring.[3]

## Organ Care System Heart[edit]

A portable system designed for “extracorporeal heart perfusion, assessment, and resuscitation”, the system allows for the heart to remain beating though a process of retrograde perfusion. The process involves oxygenated donor blood moves through the coronary arteries via the aorta and returns to the circuit through the pulmonary artery.[4] Organ Care system has been successfully used in clinical practice and has demonstrated that is able to prolong the ischemic time of donors' hearts by perfusing the organ in a beating state in normothermia while allowing the surgeon to assess the quality of the donor heart before surgery.[5] Recently, it has been successfully used in high-risk heart recipients.[6]

## Organ Care System Lung[edit]

Referred to colloquially as “lung-in-a-box,” the OCS Lung System, designed to mimic the human system, keeps the lungs “breathing,” blood pumping through the vessels, and is kept at a human body-regulated temperature while in transportation to a donor patient.[7]

## Organ Care System Liver[edit]

The OCS Liver System was granted pre-market approval by the FDA in September 2021.[8] The system is designed to preserve the organ by keeping it at temperatures similar to a human body and maintains its function by perfusing the liver with blood, oxygen, and vital nutrients like bile salts. The device also assists in monitoring and regulating the pressure and flow of the perfusion.[9]

## References[edit]

1. ^ Batcheldor, Matt. "Four heart transplants performed in whirlwind 48 hours". Vanderbilt University. Retrieved 2022-10-25.
2. ^ Alomari, Mohammad; Garg, Pankaj; Yazji, John H; Wadiwala, Ishaq J; Alamouti-fard, Emad; Hussain, Md Walid Akram; Elawady, Mohamed S; Jacob, Samuel (2022). "Is the Organ Care System (OCS) Still the First Choice With Emerging New Strategies for Donation After Circulatory Death (DCD) in Heart Transplant?". Cureus. 14 (6): e26281. doi:10.7759/cureus.26281. ISSN 2168-8184. PMC 9229932. PMID 35754437.
3. ^ Mohite, PN; Sef, D; Umakumar, K; Maunz, O; Smail, H; Stock, U (16 June 2021). "Utilization of Paragonix SherpaPak for human donor heart preservation". Multimedia manual of cardiothoracic surgery : MMCTS. 2021. doi:10.1510/mmcts.2021.035. PMID 34143579.
4. ^ "Improving Heart Transplantation by Expanding the Donor Pool". American College of Cardiology. Retrieved 2022-10-25.
5. ^ Sunjaya, AF; Sunjaya, AP (2019). "Combating Donor Organ Shortage: Organ Care System Prolonging Organ Storage Time and Improving the Outcome of Heart Transplantations". Cardiovascular therapeutics. 2019: 9482797. doi:10.1155/2019/9482797. PMID 31772620.
6. ^ Verzelloni Sef, A; Sef, D; Garcia Saez, D; Trkulja, V; Walker, C; Mitchell, J; McGovern, I; Stock, U (1 August 2021). "Heart Transplantation in Adult Congenital Heart Disease with the Organ Care System Use: A 4-Year Single-Center Experience". ASAIO journal (American Society for Artificial Internal Organs : 1992). 67 (8): 862–868. doi:10.1097/MAT.0000000000001482. PMID 34039886.
7. ^ "'Lung-in-a-Box' Offers Hope, Options for Patients Awaiting Lung Transplants". UKNow. 2022-04-22. Retrieved 2022-11-02.
8. ^ Chang, Donald D. (November 15, 2022). "The TrnsMedics Organ Care System for the liver receives FDA pre-market approval". Artificial Organs. 46 (1): 25–26. doi:10.1111/aor.14115. PMID 34802155. S2CID 244481677.
9. ^ Health, Center for Devices and Radiological (2021-11-08). "Organ Care System (OCS) Liver – P200031". FDA.

## External links[edit]

* Transmedics homepage

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