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Karimov JH, Such KA, Dessoffy R, Fukamachi K. Lumbar muscle atrophy caused by harness replacement in a chronic calf model of total artificial heart implantation. J Artif Organs 2018; 21:482-485. [PMID: 29761298 DOI: 10.1007/s10047-018-1048-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 05/11/2018] [Indexed: 11/26/2022]
Abstract
The postoperative care of animals implanted with mechanical circulatory support devices is complex. The standard of care requires continuous monitoring of hemodynamic parameters post implant, wound care, and maintenance of the animal's well-being, but also includes controlling the animal's biomechanics under conditions of continuous restraint and harnessing. In such studies, a harness provides secure fixation of the exteriorized device driveline and pressure lines and aids animal handling (lifting, position adjustment, and assistance with standing up). Harnessing is a key element in large-animal surgery. It affects the animal's conditions, safety, and post-procedure troubleshooting and thus may drastically worsen postoperative outcomes if improperly handled. Here we report a case associated with an unplanned harness replacement in a chronic animal model implanted with the Cleveland Clinic continuous-flow total artificial heart. Inadvertent changes to the harness resulted in posture change caused by muscular atrophy of the calf's spine that had been under long-term harness support.
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Affiliation(s)
- Jamshid H Karimov
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
| | - Kimberly A Such
- Biological Resources Unit, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Raymond Dessoffy
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Kiyotaka Fukamachi
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
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Fukamachi K, Karimov JH, Byram NA, Sunagawa G, Dessoffy R, Miyamoto T, Horvath DJ. Anatomical study of the Cleveland Clinic continuous-flow total artificial heart in adult and pediatric configurations. J Artif Organs 2018; 21:383-386. [DOI: 10.1007/s10047-018-1039-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 03/27/2018] [Indexed: 12/21/2022]
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Abstract
In this Editor's Review, articles published in 2016 are organized by category and briefly summarized. We aim to provide a brief reflection of the currently available worldwide knowledge that is intended to advance and better human life while providing insight for continued application of technologies and methods of organ Replacement, Recovery, and Regeneration. As the official journal of The International Federation for Artificial Organs, The International Faculty for Artificial Organs, the International Society for Mechanical Circulatory Support, the International Society for Pediatric Mechanical Cardiopulmonary Support, and the Vienna International Workshop on Functional Electrical Stimulation, Artificial Organs continues in the original mission of its founders "to foster communications in the field of artificial organs on an international level." Artificial Organs continues to publish developments and clinical applications of artificial organ technologies in this broad and expanding field of organ Replacement, Recovery, and Regeneration from all over the world. We were pleased to publish our second Virtual Issue in April 2016 on "Tissue Engineering in Bone" by Professor Tsuyoshi Takato. Our first was published in 2011 titled "Intra-Aortic Balloon Pumping" by Dr. Ashraf Khir. Other peer-reviewed Special Issues this year included contributions from the 11th International Conference on Pediatric Mechanical Circulatory Support Systems and Pediatric Cardiopulmonary Perfusion edited by Dr. Akif Ündar and selections from the 23rd Congress of the International Society for Rotary Blood Pumps edited by Dr. Bojan Biocina. We take this time also to express our gratitude to our authors for offering their work to this journal. We offer our very special thanks to our reviewers who give so generously of time and expertise to review, critique, and especially provide meaningful suggestions to the author's work whether eventually accepted or rejected. Without these excellent and dedicated reviewers the quality expected from such a journal could not be possible. We also express our special thanks to our Publisher, John Wiley & Sons for their expert attention and support in the production and marketing of Artificial Organs. We look forward to reporting further advances in the coming years.
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Karimov JH, Grady P, Sinkewich M, Sunagawa G, Dessoffy R, Byram N, Moazami N, Fukamachi K. Moderate hypothermia technique for chronic implantation of a total artificial heart in calves. J Artif Organs 2017; 20:182-185. [PMID: 28238150 DOI: 10.1007/s10047-017-0946-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 01/17/2017] [Indexed: 10/20/2022]
Abstract
The benefit of whole-body hypothermia in preventing ischemic injury during cardiac surgical operations is well documented. However, application of hypothermia during in vivo total artificial heart implantation has not become widespread because of limited understanding of the proper techniques and restrictions implied by constitutional and physiological characteristics specific to each animal model. Similarly, the literature on hypothermic set-up in total artificial heart implantation has also been limited. Herein we present our experience using hypothermia in bovine models implanted with the Cleveland Clinic continuous-flow total artificial heart.
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Affiliation(s)
- Jamshid H Karimov
- Department of Biomedical Engineering/ND20, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
| | - Patrick Grady
- Perfusion Services, Cardiac Surgery, Cleveland Clinic, Cleveland, OH, USA
| | - Martin Sinkewich
- Perfusion Services, Cardiac Surgery, Cleveland Clinic, Cleveland, OH, USA
| | - Gengo Sunagawa
- Department of Biomedical Engineering/ND20, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Raymond Dessoffy
- Department of Biomedical Engineering/ND20, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Nicole Byram
- Department of Biomedical Engineering/ND20, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Nader Moazami
- Department of Biomedical Engineering/ND20, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.,Department of Thoracic and Cardiovascular Surgery, Kaufman Center for Heart Failure, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Kiyotaka Fukamachi
- Department of Biomedical Engineering/ND20, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
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Karimov JH, Horvath DJ, Okano S, Goodin M, Sunagawa G, Byram N, Moazami N, Golding LAR, Fukamachi K. Thrombotic Depositions on Right Impeller of Double-Ended Centrifugal Total Artificial Heart In Vivo. Artif Organs 2016; 41:476-481. [PMID: 27878837 DOI: 10.1111/aor.12778] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 03/22/2016] [Accepted: 05/11/2016] [Indexed: 12/26/2022]
Abstract
The development of total artificial heart devices is a complex undertaking that includes chronic biocompatibility assessment of the device. It is considered particularly important to assess whether device design and features can be compatible long term in a biological environment. As part of the development program for the Cleveland Clinic continuous-flow total artificial heart (CFTAH), we evaluated the device for signs of thrombosis and biological material deposition in four animals that had achieved the intended 14-, 30-, or 90-day durations in each respective experiment. Explanted CFTAHs were analyzed for possible clot buildup at "susceptible" areas inside the pump, particularly the right pump impeller. Depositions of various consistency and shapes were observed. We here report our findings, along with macroscopic and microscopic analysis post explant, and provide computational fluid dynamics data with its potential implications for thrombus formation.
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Affiliation(s)
- Jamshid H Karimov
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic
| | - David J Horvath
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic
| | - Shinji Okano
- Department of General Surgery, Transplant Center, Cleveland Clinic, Cleveland, OH
| | | | - Gengo Sunagawa
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic
| | - Nicole Byram
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic
| | - Nader Moazami
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic.,Department of Thoracic and Cardiovascular Surgery, Kaufman Center for Heart Failure, Cardiac Transplantation and Mechanical Circulatory Support, Miller Family Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Leonard A R Golding
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic
| | - Kiyotaka Fukamachi
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic
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