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Orthotopic Heart Transplant

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https://www.readbyqxmd.com/read/29305032/concomitant-aortic-valve-replacement-with-orthotopic-heart-transplantation
#1
Ibrahim Sultan, Laura Seese, Luigi Lagazzi, Thomas G Gleason
No abstract text is available yet for this article.
November 9, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29296586/atrial-fibrillation-originating-from-recipient-left-atrium-after-an-orthotopic-heart-transplantation
#2
Auroa Badin, Jaret Tyler, Steven J Kalbfleisch
No abstract text is available yet for this article.
December 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/29277952/a-tale-of-two-cases-of-pulmonary-arteriovenous-malformation-how-they-fared-after-cardiac-transplantation
#3
Bethany L Wisotzkey, Dari L Magyar, Thomas K Jones, Robert J Boucek, Lester C Permut, Mariska S Kemna, Yuk M Law
BACKGROUND: In single ventricle patients, aorticopulmonary collaterals (APCs) and pulmonary arteriovenous malformations (PAVMs) following superior cavopulmonary shunt (CPS) can complicate orthotopic heart transplant (OHT) by cyanosis and hemoptysis. Though PAVMs can regress with restoration of hepatic venous flow to the pulmonary circulation, the effects of hypoxemia on the "unconditioned" allograft are not known. CASES: Two patients with significant PAVMs after CPS were cyanotic following OHT...
December 26, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29246321/blockade-of-inflammation-and-apoptosis-pathways-by-sirna-prolongs-cold-preservation-time-and-protects-donor-hearts-in-a-porcine-model
#4
Jia Wei, Shiyou Chen, Song Xue, Qiangru Zhu, Sha Liu, Li Cui, Xiuguo Hua, Yongyi Wang
In donor hearts from mini pigs, overtime cold preservation and ischemia-reperfusion injury cause poor graft quality and impaired heart function. Blockage of complement, apoptosis, and inflammation is considered a strategy for attenuating ischemia-reperfusion injury and protecting cardiac function. Minipig donor hearts were perfused and preserved in Celsior solution or transfection reagent containing Celsior solution with scramble siRNA or siRNAs targeting complement 3, caspase-8, caspase-3, and nuclear factor κB-p65 genes at 4°C and subsequently hemo-reperfused ex vivo (38°C) or transplanted into recipients...
December 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/29238731/porcine-to-human-heart-transplantation-is-clinical-application-now-appropriate
#5
REVIEW
Christopher G A McGregor, Guerard W Byrne
Cardiac xenotransplantation (CXTx) is a promising solution to the chronic shortage of donor hearts. Recent advancements in immune suppression have greatly improved the survival of heterotopic CXTx, now extended beyond 2 years, and life-supporting kidney XTx. Advances in donor genetic modification (B4GALNT2 and CMAH mutations) with proven Gal-deficient donors expressing human complement regulatory protein(s) have also accelerated, reducing donor pig organ antigenicity. These advances can now be combined and tested in life-supporting orthotopic preclinical studies in nonhuman primates and immunologically appropriate models confirming their efficacy and safety for a clinical CXTx program...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29236988/diagnostic-and-prognostic-value-of-myocardial-blood-flow-quantification-as-non-invasive-indicator-of-cardiac-allograft-vasculopathy
#6
Paco E Bravo, Brian A Bergmark, Tomas Vita, Viviany R Taqueti, Ankur Gupta, Sara Seidelmann, Thomas E Christensen, Michael T Osborne, Nishant R Shah, Nina Ghosh, Jon Hainer, Courtney F Bibbo, Meagan Harrington, Fred Costantino, Mandeep R Mehra, Sharmila Dorbala, Ron Blankstein, Akshay Desai, Lynne Stevenson, Michael M Givertz, Marcelo F Di Carli
Aims: Cardiac allograft vasculopathy (CAV) is a leading cause of death in orthotopic heart transplant (OHT) survivors. Effective non-invasive screening methods are needed. Our aim was to investigate the added diagnostic and prognostic value of myocardial blood flow (MBF) to standard myocardial perfusion imaging (MPI) with positron emission tomography (PET) for CAV detection. Methods and results: We studied 94 OHT recipients (prognostic cohort), including 66 who underwent invasive coronary angiography and PET within 1 year (diagnostic cohort)...
December 8, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29233199/hypoplastic-left-heart-in-turner-s-syndrome-a-primary-indication-for-transplant
#7
Joseph Philip, Dipankar Gupta, Mark S Bleiweis, Biagio A Pietra, Himesh V Vyas
Survival for hypoplastic left heart syndrome patients following the Norwood procedure is 71-90%. Mortality in patients with Turner's syndrome and hypoplastic left heart syndrome after conventional palliation (Norwood operation) has been reported as high as 80%. This questions the approach of traditional staged palliation. Here, we report a patient with hypoplastic left heart syndrome and Turner's syndrome bridged to orthotopic heart transplantation following a hybrid procedure.
December 13, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29229262/heart-transplantation-in-patients-%C3%A2-60-years-importance-of-relative-pulmonary-hypertension-and-right-ventricular-failure-on-midterm-survival
#8
Juan C Bianco, Santiago Mc Loughlin, André Y Denault, Ricardo G Marenchino, Juan I Rojas, Francisco C Bonofiglio
OBJECTIVES: To determine the impact of recipient age and perioperative risk factors on midterm survival after orthotopic heart transplantation (OHT). The authors hypothesized that perioperative variables are more important as predictors of mortality than is a recipient's age. DESIGN: Retrospective study. SETTING: Tertiary care university hospital. PARTICIPANTS: The study comprised 126 consecutive adults who underwent OHT...
September 18, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29198634/intraoperative-administration-of-4-factor-prothrombin-complex-concentrate-reduces-blood-requirements-in-cardiac-transplantation
#9
Gina H Sun, Visal Patel, Ingrid Moreno-Duarte, Farhad Zahedi, Eric Ursprung, Greg Couper, Fred Y Chen, Ian J Welsby, Raymond Comenzo, Grace Kao, Frederick C Cobey
OBJECTIVE: Assessing the efficacy of intraoperative 4-factor prothrombin complex concentrate (4F-PCC) use in blood product utilization, time to chest closure, intensive care unit (ICU) and hospital length of stay (LOS), thromboembolic complications, renal injury and mortality in left ventricular assist device (LVAD) patients on home anticoagulation therapy with warfarin, undergoing orthotopic heart transplantation (OHT). DESIGN: Retrospective analysis of OHT patients at Tufts Medical Center from May 2013 to October 2016...
August 3, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29197470/morphologic-findings-in-donor-transplanted-hearts-at-necropsy-early-and-late-after-orthotopic-heart-transplantation
#10
William C Roberts, Nitin Kondapalli, Joseph M Guileyardo
Little necropsy information is available on donor hearts in place in recipients for varying periods. Necropsy studies were performed in 79 patients who had survived from 1 day to 17 years after orthotopic heart transplantation (OHT). At OHT, the 79 patients ranged in age from 3 to 70 years (mean 51), and at death, from 20 to 76 years (mean 54). The native hearts tended to be larger than the donor hearts in the 22 patients surviving ≤60 days and the donor hearts tended to be larger in the 57 patients surviving >60 days, suggesting that the donor hearts increased in weight with time...
October 20, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29187090/outcomes-of-patients-with-familial-transthyretin-amyloidosis-after-liver-transplantation
#11
Dipti Banerjee, Lindsey E Roeker, Martha Grogan, Paul Swiecicki, John Poterucha, Julie Heimbach, Steve Zeldenrust, Morie Gertz, Brooks Edwards, Richard Daly, Kyle W Klarich, Angela Dispenzieri
BACKGROUND: Familial transthyretin amyloidosis is a disease caused by misfolded transthyretin aggregates that can impair multiple organ systems. Liver transplantation is the first-line treatment for familial transthyretin amyloidosis. RESEARCH QUESTION: Our objective is to study outcomes and survival among patients with familial transthyretin amyloidosis after transplantation. DESIGN: All patients undergoing orthotopic liver transplant for familial transthyretin amyloidosis at Mayo Clinic between 1997 and 2012 were reviewed...
September 2017: Progress in Transplantation
https://www.readbyqxmd.com/read/29186382/a-modified-technique-for-orthotopic-heart-transplantation-to-minimize-warm-ischaemic-time
#12
Yasuhiro Shudo, Hanjay Wang, Y Joseph Woo
Prolonged allograft ischaemic time in heart transplantation adversely impacts the performance of the donor heart in the immediate postoperative period and ultimately results in decreased post-transplant survival. Therefore, optimal surgical technique for heart transplantation should aim to minimize allograft ischaemic time. Here, we report a case of successful orthotopic heart transplantation using a modified technique to reduce allograft ischaemic time and warm ischaemic time.
November 27, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29172240/disseminated-mucormycosis-masquerading-as-rejection-early-after-orthotopic-heart-transplantation
#13
Lindsay Margoles, David DeNofrio, Ayan Patel, Yoav Golan, Amanda Vest, Knarik Arkun, Helen Boucher, Michael Kiernan, Jenica Upshaw
Mucorales organisms are an uncommon cause of invasive fungal infections after solid organ transplantation but are associated with great morbidity and mortality. We report a fatal case of disseminated Cunninghamella infection early after heart transplantation. The patient developed graft dysfunction and elevated markers of myocyte injury and autopsy revealed fulminant fungal myocarditis. This case highlights the need for a high index of suspicion in immunocompromised patients who are not improving with standard antimicrobial therapy...
November 24, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29162358/heart-transplantation-for-chagas-cardiomyopathy
#14
Ana Rita Ramalho, David Prieto, Fátima Franco, Manuel J Antunes
Chagas disease is an endemic disease in Latin America that is increasingly found in non-endemic areas all over the world due to the flow of migrants from Central and South America. We present the case of a Brazilian immigrant in Portugal who underwent orthotopic heart transplantation for end-stage Chagas cardiomyopathy. Immunosuppressive therapy included prednisone, mycophenolate mofetil and tacrolimus. Twelve months after the procedure she is asymptomatic, with good graft function, and with no evidence of complications such as graft rejection, opportunistic infections, neoplasms or reactivation of Trypanosoma cruzi infection...
November 18, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29150986/memory-t-cells-are-significantly-increased-in-rejecting-liver-allografts-of-rhesus-monkeys
#15
Hwajung Kim, Hyeyoung Kim, Sun-Kyung Lee, Xue-Li Jin, Tae Jin Kim, Chanho Park, Jae-Il Lee, Hyo-Sin Kim, Suk Kyun Hong, Kyung Chul Yoon, Sung Woo Ahn, Kyoung-Bun Lee, Nam-Joon Yi, Jaeseok Yang, Kwang-Woong Lee, Wayne J Hawthorne, Kyung-Suk Suh
INTRODUCTION: The Rhesus monkey (RM) is an excellent preclinical model in kidney, heart and islet transplantation that has provided the basis for new immunosuppressive protocols for clinical studies. However, there remain relatively few liver transplantation (LT) models in nonhuman primates. In this study, we analyzed the immune cell populations of PBMCs and secondary lymphoid organs along with livers of normal rhesus monkeys and compared them to those of rejecting liver transplanted recipient's following withdrawal of immunosuppression...
November 18, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/29149978/perioperative-prophylaxis-for-total-artificial-heart-transplantation
#16
H E Chambers, P Pelish, F Qiu, D F Florescu
BACKGROUND: Practice variation regarding perioperative antimicrobial prophylaxis in total artificial heart transplantations (TAH-t) across institutions is unknown. The aim of our survey was to assess the current practices for prevention of infection in TAH-t recipients among different programs. METHODS: An electronic survey was sent to programs that implant Syncardia TAH (Syncardia Systems, Tuscon, Ariz, USA). Proportions were analyzed for categorical variables; means and SDs were analyzed for continuous variables...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29141071/usefulness-of-total-12-lead-qrs-voltage-as-a-clue-to-diagnosis-of-patients-with-cardiac-sarcoidosis-severe-enough-to-warrant-orthotopic-heart-transplant
#17
William C Roberts, Tiffany M Becker, Shelley A Hall
Importance: Severe heart failure caused by cardiac sarcoidosis is difficult to diagnosis without biopsy. Objective: To assess whether total electrocardiographic 12-lead QRS voltage may be a clue to diagnosis. Design, Setting, Participants: Case-series study with cases collected at Baylor University Medical Center at Dallas, Dallas, Texas, from January 13, 2005, to January 24, 2017. The clinical records of 16 patients with severe heart failure caused by cardiac sarcoidosis were studied...
November 15, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/29110791/preanesthetic-evaluation-of-the-patient-with-end-stage-heart-failure
#18
REVIEW
Michele Sumler, Ratna Vadlamudi
Heart failure (HF) currently affects more than 5 million patients in the United States [1]. Advanced HF is associated with high mortality and poor quality of life. It is estimated that between 5% and 10% of all patients with HF have an advanced form of the disease [1]. Orthotopic heart transplantation (OHT) is an accepted therapy for stage D HF [3] (Fig. 1). Unfortunately, the number of patients with the disease exceeds the number of available organs. This makes appropriate patient selection vital in the field of heart transplantation...
June 2017: Best Practice & Research. Clinical Anaesthesiology
https://www.readbyqxmd.com/read/29110789/long-term-management-of-end-stage-heart-failure
#19
REVIEW
Marlena V Habal, A Reshad Garan
End-stage heart failure manifests as severe and often relentless symptoms that define the clinical syndrome of heart failure, namely congestion and hypoperfusion. These patients suffer from dyspnea, fatigue, abdominal discomfort, and ultimately cardiac cachexia. Renal and hepatic dysfunction frequently further complicates the process. Recurrent hospitalizations, cardiac arrhythmias, and intolerance to standard heart failure therapies are common as the disease progresses. Management focuses on controlling symptoms, correcting precipitants, avoiding triggers, and maximizing therapies with demonstrable survival benefit...
June 2017: Best Practice & Research. Clinical Anaesthesiology
https://www.readbyqxmd.com/read/29106559/outcome-of-heart-transplantation-after-bridge-to-transplant-strategy-using-various-mechanical-circulatory-support-devices
#20
Daisuke Yoshioka, Boyangzi Li, Hiroo Takayama, Reshad A Garan, Veli K Topkara, Jiho Han, Paul Kurlansky, Melana Yuzefpolskaya, Paolo C Colombo, Yoshifumi Naka, Koji Takeda
OBJECTIVES: Orthotopic heart transplantation (OHT) is limited by a chronic shortage of donors. With the evolution of technology, more patients have been bridged to transplant (BTT) through various pathways using various types of mechanical circulatory support. We compared short- and long-term outcomes among these various strategies of BTT. METHODS: We retrospectively reviewed 410 patients who had OHT between January 2009 and April 2015. Patients were divided into 4 groups according to BTT status: primary OHT without bridging (Group A, n  = 246); bridge with implantable continuous-flow left ventricular assist device (CF-LVAD) (Group B, n  = 130); bridge with short-term mechanical circulatory support (Group C, n  = 16) and bridge with multiple mechanical circulatory supports, including short-term mechanical circulatory support and CF-LVAD (Group D, n  = 18)...
July 4, 2017: Interactive Cardiovascular and Thoracic Surgery
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