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D'Alessandro D, Schroder J, Meyer DM, Vidic A, Shudo Y, Silvestry S, Leacche M, Sciortino CM, Rodrigo ME, Pham SM, Copeland H, Jacobs JP, Kawabori M, Takeda K, Zuckermann A. Impact of controlled hypothermic preservation on outcomes following heart transplantation. J Heart Lung Transplant 2024; 43:1153-1161. [PMID: 38503386 DOI: 10.1016/j.healun.2024.03.010] [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: 09/28/2023] [Revised: 02/09/2024] [Accepted: 03/14/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Severe primary graft dysfunction (PGD) is a major cause of early mortality after heart transplant, but the impact of donor organ preservation conditions on severity of PGD and survival has not been well characterized. METHODS Data from US adult heart-transplant recipients in the Global Utilization and Registry Database for Improved Heart Preservation-Heart Registry (NCT04141605) were analyzed to quantify PGD severity, mortality, and associated risk factors. The independent contributions of organ preservation method (traditional ice storage vs controlled hypothermic preservation) and ischemic time were analyzed using propensity matching and logistic regression. RESULTS Among 1,061 US adult heart transplants performed between October 2015 and December 2022, controlled hypothermic preservation was associated with a significant reduction in the incidence of severe PGD compared to ice (6.6% [37/559] vs 10.4% [47/452], p = 0.039). Following propensity matching, severe PGD was reduced by 50% (6.0% [17/281] vs 12.1% [34/281], respectively; p = 0.018). The Kaplan-Meier terminal probability of 1-year mortality was 4.2% for recipients without PGD, 7.2% for mild or moderate PGD, and 32.1%, for severe PGD (p < 0.001). The probability of severe PGD increased for both cohorts with longer ischemic time, but donor hearts stored on ice were more likely to develop severe PGD at all ischemic times compared to controlled hypothermic preservation. CONCLUSIONS Severe PGD is the deadliest complication of heart transplantation and is associated with a 7.8-fold increase in probability of 1-year mortality. Controlled hypothermic preservation significantly attenuates the risk of severe PGD and is a simple yet highly effective tool for mitigating post-transplant morbidity.
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Prusinski C, Yan D, Klasova J, McVeigh KH, Shah SZ, Fermo OP, Kubrova E, Farr EM, Williams LC, Gerardo-Manrique G, Bergquist TF, Pham SM, Engelberg-Cook E, Hare JM, March KL, Caplan AI, Qu W. Multidisciplinary Management Strategies for Long COVID: A Narrative Review. Cureus 2024; 16:e59478. [PMID: 38826995 PMCID: PMC11142761 DOI: 10.7759/cureus.59478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2024] [Indexed: 06/04/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused millions of infections to date and has led to a worldwide pandemic. Most patients had a complete recovery from the acute infection, however, a large number of the affected individuals experienced symptoms that persisted more than 3 months after diagnosis. These symptoms most commonly include fatigue, memory difficulties, brain fog, dyspnea, cough, and other less common ones such as headache, chest pain, paresthesias, mood changes, muscle pain, and weakness, skin rashes, and cardiac, endocrine, renal and hepatic manifestations. The treatment of this syndrome remains challenging. A multidisciplinary approach to address combinations of symptoms affecting multiple organ systems has been widely adopted. This narrative review aims to bridge the gap surrounding the broad treatment approaches by providing an overview of multidisciplinary management strategies for the most common long COVID conditions.
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Alomari M, El-Sayed Ahmed MM, Ali M, Wadiwala IJ, Pham SM, Sareyyupoglu B. Quadricuspid Aortic Valve: Imaging, Diagnosis, and Prognosis. Tex Heart Inst J 2024; 51:e238256. [PMID: 38686682 PMCID: PMC11075509 DOI: 10.14503/thij-23-8256] [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] [Indexed: 05/02/2024]
Abstract
Quadricuspid aortic valve is a rare congenital cardiac anomaly with an incidence of 0.008% to 0.043%. Its clinical course varies depending on cusp anatomy, function, and associated cardiac malformations. It frequently progresses to aortic valve regurgitation that may require surgical valve replacement. Detection has shifted from incidental discovery during autopsies or cardiac surgeries in the early 20th century to various cardiac imaging methods in recent decades. In addition to contributing to the literature, this report supports the use of transesophageal echocardiography more liberally to detect aortic valve abnormalities. The case presents a 48-year-old female patient with an incidentally discovered quadricuspid aortic valve.
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Raavi L, Garg P, Alomari M, Celik NB, Makey IA, Thomas M, Nassar A, Sareyyupoglu B, Jacob S, Pham SM, El-Sayed Ahmed MM. Outcome of lung transplantation in patients with pulmonary alveolar microlithiasis in the era of COVID-19 infection. J Surg Case Rep 2024; 2024:rjae211. [PMID: 38605700 PMCID: PMC11008913 DOI: 10.1093/jscr/rjae211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 03/15/2024] [Indexed: 04/13/2024] Open
Abstract
Lung transplant recipients are at higher risk of developing COVID-19 infection compared to other solid organ transplants. The risk further increases in the unvaccinated patients. We present a case of a 43-year-old male who underwent bilateral sequential lung transplantation for pulmonary alveolar microlithiasis (PAM) and had an uneventful recovery. However, two years post-transplantation, the patient developed chronic lung allograft dysfunction (CLAD) with bronchiolitis obliterans syndrome and two episodes of COVID-19 infection. During the second episode of COVID-19 infection, the patient developed sepsis and multi-organ dysfunction ultimately resulting in death. Our case report highlights the increased susceptibility of PAM patients' post-lung transplant to COVID-19 infection. Continuous follow-up of PAM patients' post-lung transplantation is necessary to prevent unfavorable outcomes.
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Celik NB, Alomari M, Garg P, Sareyyupoglu B, Pham SM. Reduction aortoplasty of donor ascending aorta aneurysm during heart transplant: A case report. JTCVS Tech 2024; 24:117-120. [PMID: 38835561 PMCID: PMC11145378 DOI: 10.1016/j.xjtc.2024.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/27/2024] [Accepted: 01/31/2024] [Indexed: 06/06/2024] Open
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Das I, Pham SM, Perry DK, Croome KP. The Use of Ex Situ Normothermic Machine Perfusion in Combined Cardiac and Liver Transplantation Procedures. Transplant Direct 2024; 10:e1574. [PMID: 38274474 PMCID: PMC10810592 DOI: 10.1097/txd.0000000000001574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/05/2023] [Accepted: 10/24/2023] [Indexed: 01/27/2024] Open
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Alomari M, Garg P, Wadiwala I, Pham SM, Sareyyupoglu B. Septal myectomy for hypertrophic obstructive cardiomyopathy using a pulsed radiofrequency energy soft tissue dissection instrument. JTCVS Tech 2023; 22:220-222. [PMID: 38152217 PMCID: PMC10750430 DOI: 10.1016/j.xjtc.2023.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/29/2023] [Accepted: 07/05/2023] [Indexed: 12/29/2023] Open
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Martin AK, Fritz AV, Pham SM, Landolfo KP, Sareyyupoglu B, Brown TE, Logvinov I, Li Z, Narula T, Makey IA, Thomas M. Initial experience and outcomes with a hybrid extracorporeal membrane oxygenation and cardiopulmonary bypass circuit for lung transplantation. JTCVS OPEN 2023; 16:1029-1037. [PMID: 38204698 PMCID: PMC10775128 DOI: 10.1016/j.xjon.2023.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 08/24/2023] [Accepted: 09/21/2023] [Indexed: 01/12/2024]
Abstract
Background The utilization of extracorporeal life support (ECLS) for intraoperative support during lung transplantation has increased over the past decade. Although veno-arterial extracorporeal membrane oxygenation (VA-ECMO) has recently emerged as the preferred modality over cardiopulmonary bypass (CPB), many centers continue to use both forms of ECLS during lung transplantation. Our novel hybrid VA-ECMO/CPB circuit allows for seamless transition from VA-ECMO to CPB at a significant cost savings compared to a standalone VA-ECMO circuit. This study describes our initial experience and outcomes in the first 100 bilateral lung transplantations using this novel hybrid VA-ECMO/CPB circuit. Methods Medical records from September 2017 to May 2021 of the first 100 consecutive patients undergoing bilateral lung transplantation with intraoperative hybrid VA-ECMO support were examined retrospectively. We excluded patients with single lung transplants, retransplantations, preoperative ECLS bridging, and veno-venous (VV) ECMO and those supported with CPB only. Perioperative recipient, anesthetic, perfusion variables, and outcomes were assessed. Results Of the 100 patients supported with VA-ECMO, 19 were converted intraoperatively to CPB. Right ventricular dysfunction was seen in 37% of patients, and the median mean pulmonary artery pressure was 28 mm Hg. No oxygenator clotting was observed with a median heparin dose of 13,000 units in the VA-ECMO group. Primary graft dysfunction grade 3 at 72 hours was observed in 10.1% of all patients and observed 1-year mortality was 4%. Conclusions The use of a hybrid VA-ECMO/CPB circuit in our institution allows for rapid conversion to CPB with acceptable outcomes across a diverse recipient group at a significantly reduced cost compared to standalone VA-ECMO circuits.
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Castillo-Larios R, Pollak PM, Chaudhary S, Case JB, Guru PK, Alomari M, Song Z, Johnson JL, Narula T, Pham SM, Makey IA. Percutaneous Transseptal Extracorporeal Membrane Oxygenation to Rescue a Failing Right Ventricle in an Animal Model. INNOVATIONS-TECHNOLOGY AND TECHNIQUES IN CARDIOTHORACIC AND VASCULAR SURGERY 2023; 18:583-588. [PMID: 37968876 DOI: 10.1177/15569845231208187] [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] [Indexed: 11/17/2023]
Abstract
OBJECTIVE We tested the feasibility and effectiveness of a percutaneous atrial transseptal extracorporeal membrane oxygenation (ECMO) cannulation strategy in a right ventricular failure (RVF) model. METHODS We performed 4 nonsurvival porcine experiments. Percutaneous transseptal access was achieved using a steerable introducer. For guidance, we used fluoroscopy, transesophageal echocardiogram (TEE), and intracardiac echocardiography (ICE). A ProtekDuo rapid deployment cannula (LivaNova, London, UK) was advanced across the septum into the left atrium by 2 to 3 cm. Pulmonary hypertension (PH) was induced by partially clamping the pulmonary artery. ECMO flow was cycled from high (2 to 3 L/min) to low (0.2 to 0.3 L/min) over 2 to 3 hours. RESULTS Transseptal access using TEE and fluoroscopy was successful in 1 animal and unsuccessful in 1 animal. ICE provided optimal visualization for the remaining 2 animals. Mean arterial pressure (MAP) was associated immediately and consistently with high versus low ECMO flow rate (mean difference: 29 ± 3.1 mm Hg, P = 0.004) but was not restored to baseline values. RV pressure values were dynamic. Given time to equilibrate, mean RV pressure was restored to a baseline level. CONCLUSIONS Percutaneous right atrium to left atrium transseptal cannulation relieved PH-RVF. MAP was restored to a viable level, and mean RV pressure was restored to a baseline level. Transseptal ECMO shows promise as a cannulation strategy to bridge patients with PH-RVF to lung transplant.
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Shourav MMI, Goswami RM, Pham SM, Anisetti B, Markovic D, Lin MP. Trends and predictors of intracranial hemorrhage in patients with advanced heart failure on left ventricular assist device from 2005 to 2014 in the United States. J Stroke Cerebrovasc Dis 2023; 32:107340. [PMID: 37683528 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107340] [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: 04/20/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
OBJECTIVES Left ventricular assist devices are known to extend survival in patients with advanced heart failure; however, their association with intracranial hemorrhage is also well-known. We aimed to explore the risk trend and predictors of intracranial hemorrhage in patients with left ventricular assist devices. MATERIAL AND METHODS We included patients aged 18 years or older with left ventricular assist devices hospitalized in the US from 2005 to 2014 using the National Inpatient Sample. We computed the survey-weighted percentages with intracranial hemorrhage across the 10-year study period and assessed whether the proportions changed over time. Predictors of intracranial hemorrhage were evaluated using multivariable logistic regression model. RESULTS Of 33,246 hospitalizations, 568 (1.7%) had intracranial hemorrhage. The number of left ventricular assist devices placements increased from 873 in 2005 to 5175 in 2014. However, the risk of intracranial hemorrhage remained largely unchanged (1.7% to 2.3%; linear trend, P = 0.604). The adjusted odds of intracranial hemorrhage were increased with the presence of one of the following variables: female sex (odds ratio [OR], 1.58; 95% CI, 1.03-2.43), history of ischemic stroke (OR, 3.13; 95% CI, 1.86-5.28), or Charlson Comorbidity Index score of 3 or more (OR, 77.40; 95% CI, 10.03-597.60). CONCLUSIONS Over the last decade, the risk of intracranial hemorrhage has remained relatively unchanged despite an increase in the use of left ventricular assist devices in patients with advanced heart failure. Women, higher Charlson Comorbidity Index scores, and history of ischemic stroke were associated with higher odds of intracranial hemorrhage in patients with left ventricular assist devices.
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El-Sayed Ahmed MM, Shah SZ, Zhang N, Jarmi T, Jacob S, Makey IA, Thomas M, Sareyyupoglu B, Landolfo KP, Erasmus DB, Pham SM. Survival Outcomes of Lung Transplant Recipients From Donors With Abnormal Kidney Function. Ann Thorac Surg 2023; 116:1071-1078. [PMID: 36404446 DOI: 10.1016/j.athoracsur.2022.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/19/2022] [Accepted: 10/17/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Recovering lungs with pulmonary edema due to abnormal kidney function is considered one of the expanded selection criteria for lung transplant. The aim of this study is to assess lung transplant recipients' survival from donors with abnormal kidney function and to determine differences in lung recovery rates from donors with and donors without abnormal kidney function. METHODS We reviewed the United Network for Organ Sharing registry for first-time adult lung transplant donors and recipients from June 2005 to March 2017. Donor kidney function was categorized into three groups based on estimated glomerular filtration rate: group I, greater than 60 mL/min; group II, 15 to 59 mL/min; and group III, less than 15 mL/min. Recipient survival was stratified based on estimated glomerular filtration rate using Kaplan-Meier. A multivariate Cox Regression model with known risk factors that affect survival was used to compare survival among groups. Comparison of lung recovery among the three groups was also performed. RESULTS Lung recovery rates were 29.7% (15,670 of 52,747), 19.4% (3879 of 20,040), and 18.1% (704 of 3898) for groups I, II, and III, respectively. The 1-, 3-, and 5-year recipient survival rates were 86.2%, 69.2%, and 55.7% for group I; 84.9%, 66.9%, and 53.8% for group II; and 85.5%, 65.3%, and 50.3% for group III, respectively (adjusted P = .25; multivariate Cox regression method). When group I was used as reference, the adjusted hazard ratio for group II was 1.04 (95% CI, 0.98-1.10) and for group III, it was 1.08 (95% CI, 0.96-1.23), after adjusting with the multivariate Cox regression model. CONCLUSIONS There was no significant difference in lung recipient survival. The lung recovery rate from donors with abnormal kidney function was lower compared with that of donors with normal kidney function.
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Shudo Y, Leacche M, Copeland H, Silvestry S, Pham SM, Molina E, Schroder JN, Sciortino CM, Jacobs JP, Kawabori M, Meyer DM, Zuckermann A, D’Alessandro DA. A Paradigm Shift in Heart Preservation: Improved Post-transplant Outcomes in Recipients of Donor Hearts Preserved With the SherpaPak System. ASAIO J 2023; 69:993-1000. [PMID: 37678260 PMCID: PMC10602216 DOI: 10.1097/mat.0000000000002036] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023] Open
Abstract
Traditional ice storage has been the historic standard for preserving donor's hearts. However, this approach provides variability in cooling, increasing risks of freezing injury. To date, no preservation technology has been reported to improve survival after transplantation. The Paragonix SherpaPak Cardiac Transport System (SCTS) is a controlled hypothermic technology clinically used since 2018. Real-world evidence on clinical benefits of SCTS compared to conventional ice cold storage (ICS) was evaluated. Between October 2015 and January 2022, 569 US adults receiving donor hearts preserved and transported either in SCTS (n = 255) or ICS (n = 314) were analyzed from the Global Utilization And Registry Database for Improved heArt preservatioN (GUARDIAN-Heart) registry. Propensity matching and a subgroup analysis of >240 minutes ischemic time were performed to evaluate comparative outcomes. Overall, the SCTS cohort had significantly lower rates of severe primary graft dysfunction (PGD) ( p = 0.03). When propensity matched, SCTS had improving 1-year survival ( p = 0.10), significantly lower rates of severe PGD ( p = 0.011), and lower overall post-transplant MCS utilization ( p = 0.098). For patients with ischemic times >4 hours, the SCTS cohort had reduced post-transplant MCS utilization ( p = 0.01), reduced incidence of severe PGD ( p = 0.005), and improved 30-day survival ( p = 0.02). A multivariate analysis of independent risk factors revealed that compared to SCTS, use of ice results in a 3.4-fold greater chance of severe PGD ( p = 0.014). Utilization of SCTS is associated with a trend toward increased post-transplant survival and significantly lower severe PGD and MCS utilization. These findings fundamentally challenge the decades-long status quo of transporting donor hearts using ice.
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Wadiwala IJ, Garg P, Pham V, Taner CB, Farres H, Krishna M, Pham SM. Iatrogenic Acute Ascending Aortic Dissection During Combined Heart/Liver Transplant for Amyloidosis. Transplant Proc 2023; 55:1978-1980. [PMID: 37652784 DOI: 10.1016/j.transproceed.2023.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 07/31/2023] [Indexed: 09/02/2023]
Abstract
We report a case of iatrogenic acute type A aortic dissection (ATAAD) during a combined heart-liver transplant in a patient with amyloid-associated cardiac and hepatic failure. The patient developed ATAAD of the recipient's aorta during the heart transplantation. Because there was no sign of malperfusion or proximal extension into the donor aorta, we proceeded with the liver transplantation and continued medical management for ATAAD. The patient was discharged uneventfully 30 days after the transplant, and computed tomography coronary angiogram after 4 months showed stable dissection. During a heart transplant, ATAAD of the native aorta without malperfusion syndrome can be managed conservatively with close progress monitoring.
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Wadiwala IJ, Fernandez-Bussy S, Garg P, Ali M, Feinglass NG, Thomas M, Pham SM. Novel treatment of bronchopleural fistula in a lung transplant recipient with endobronchial sealant and endobronchial valve placement via robotic-assisted bronchoscopy. J Surg Case Rep 2023; 2023:rjad383. [PMID: 37434719 PMCID: PMC10331800 DOI: 10.1093/jscr/rjad383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 06/15/2023] [Indexed: 07/13/2023] Open
Abstract
Bronchopleural fistulas (BPFs) are a dreaded complication following pulmonary surgery. Endobronchial valves (EVs), with endobronchial sealant (ES), instilled with robotic bronchoscopy (RB), allow occlusion of BPF, avoiding surgery. The patient was a 71-year-old woman with a history of chronic obstructive pulmonary disease and bronchiectasis who underwent bilateral lung transplantation and wedge resection of the right middle lobe and left lingula. A BPF was discovered on postoperative day (POD) 21. Conservative measures with chest tubes failed, and robotic-assisted bronchoscopy aided in reaching the bronchial segment and instilling ES, and EV was deployed with the conventional bronchoscope. The pneumothorax was cleared 12 days later, and on POD 56, she was discharged. The RB procedure was successful, with no pneumothorax or BPF symptoms after a median follow-up of POD 284. Robotic endobronchial closure of BPF with EV and ES is an effective treatment option avoiding invasive surgeries.
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Schroder JN, Patel CB, DeVore AD, Bryner BS, Casalinova S, Shah A, Smith JW, Fiedler AG, Daneshmand M, Silvestry S, Geirsson A, Pretorius V, Joyce DL, Um JY, Esmailian F, Takeda K, Mudy K, Shudo Y, Salerno CT, Pham SM, Goldstein DJ, Philpott J, Dunning J, Lozonschi L, Couper GS, Mallidi HR, Givertz MM, Pham DT, Shaffer AW, Kai M, Quader MA, Absi T, Attia TS, Shukrallah B, Sun BC, Farr M, Mehra MR, Madsen JC, Milano CA, D'Alessandro DA. Transplantation Outcomes with Donor Hearts after Circulatory Death. N Engl J Med 2023; 388:2121-2131. [PMID: 37285526 DOI: 10.1056/nejmoa2212438] [Citation(s) in RCA: 61] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND Data showing the efficacy and safety of the transplantation of hearts obtained from donors after circulatory death as compared with hearts obtained from donors after brain death are limited. METHODS We conducted a randomized, noninferiority trial in which adult candidates for heart transplantation were assigned in a 3:1 ratio to receive a heart after the circulatory death of the donor or a heart from a donor after brain death if that heart was available first (circulatory-death group) or to receive only a heart that had been preserved with the use of traditional cold storage after the brain death of the donor (brain-death group). The primary end point was the risk-adjusted survival at 6 months in the as-treated circulatory-death group as compared with the brain-death group. The primary safety end point was serious adverse events associated with the heart graft at 30 days after transplantation. RESULTS A total of 180 patients underwent transplantation; 90 (assigned to the circulatory-death group) received a heart donated after circulatory death and 90 (regardless of group assignment) received a heart donated after brain death. A total of 166 transplant recipients were included in the as-treated primary analysis (80 who received a heart from a circulatory-death donor and 86 who received a heart from a brain-death donor). The risk-adjusted 6-month survival in the as-treated population was 94% (95% confidence interval [CI], 88 to 99) among recipients of a heart from a circulatory-death donor, as compared with 90% (95% CI, 84 to 97) among recipients of a heart from a brain-death donor (least-squares mean difference, -3 percentage points; 90% CI, -10 to 3; P<0.001 for noninferiority [margin, 20 percentage points]). There were no substantial between-group differences in the mean per-patient number of serious adverse events associated with the heart graft at 30 days after transplantation. CONCLUSIONS In this trial, risk-adjusted survival at 6 months after transplantation with a donor heart that had been reanimated and assessed with the use of extracorporeal nonischemic perfusion after circulatory death was not inferior to that after standard-care transplantation with a donor heart that had been preserved with the use of cold storage after brain death. (Funded by TransMedics; ClinicalTrials.gov number, NCT03831048.).
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Khan FW, Pham V, Garg P, Hussain MWA, Pham SM. A novel technique for insertion of left ventricular assist device in a patient with severely calcified left ventricle apex. JTCVS Tech 2023; 19:61-63. [PMID: 37324359 PMCID: PMC10267860 DOI: 10.1016/j.xjtc.2023.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 06/17/2023] Open
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Haddad O, Sareyyupoglu B, Goswami RM, Bitargil M, Patel PC, Jacob S, El-Sayed Ahmed MM, Leoni Moreno JC, Yip DS, Landolfo K, Pham SM. Short-term outcomes of heart transplant patients bridged with Impella 5.5 ventricular assist device. ESC Heart Fail 2023. [PMID: 37137732 PMCID: PMC10375168 DOI: 10.1002/ehf2.14391] [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: 05/03/2022] [Revised: 01/15/2023] [Accepted: 03/30/2023] [Indexed: 05/05/2023] Open
Abstract
AIMS We sought to investigate the outcomes of heart transplant patients supported with Impella 5.5 temporary mechanical circulatory support. METHODS AND RESULTS Patient demographics, perioperative data, hospital timeline, and haemodynamic parameters were followed during initial admission, Impella support, and post-transplant period. Vasoactive-inotropic score, primary graft failure, and complications were recorded. Between March 2020 and March 2021, 16 advanced heart failure patients underwent Impella 5.5 temporary left ventricular assist device support through axillary approach. Subsequently, all these patients had heart transplantation. All patients were either ambulatory or chair bound during their temporary mechanical circulatory support until heart transplantation. Patients were kept on Impella support median of 19 days (3-31) with the median lactate dehydrogenase level of 220 (149-430). All Impella devices were removed during heart transplantation. During Impella support, patients had improved renal function with median creatinine serum level of 1.55 mg/dL decreased to 1.25 (P = 0.007), pulmonary artery pulsatility index scores increased from 2.56 (0.86-10) to 4.2 (1.3-10) (P = 0.048), and right ventricular function improved (P = 0.003). Patients maintained improved renal function and favourable haemodynamics after their heart transplantation as well. All patients survived without any significant morbidity after their heart transplantation. CONCLUSIONS Impella 5.5 temporary left ventricular assist device optimizes care of heart transplant recipients providing superior haemodynamic support, mobility, improved renal function, pulmonary haemodynamics, and right ventricular function. Utilizing Impella 5.5 as a direct bridging strategy to heart transplantation resulted in excellent outcomes.
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Shah SZ, Alvarez FG, Sanghavi DK, Moreno Franco P, Isha S, Marquez CP, Libertin C, Guru PK, Sareyyupoglu B, Pham SM. Coronavirus Disease 2019 Causing Infection of Transplanted Lung Allograft: A Pitfall of Prolonged Shedding of Severe Acute Respiratory Syndrome Coronavirus-2 Pretransplant. Mayo Clin Proc Innov Qual Outcomes 2023; 7:93-98. [PMID: 36644594 PMCID: PMC9829600 DOI: 10.1016/j.mayocpiqo.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/25/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) pandemic has led to considerable morbidity and mortality across the world. Lung transplant is a viable option for a few with COVID-19-related lung disease. Whom and when to transplant has been the major question impacting the transplant community given the novelty of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We describe a pitfall of presumed prolonged shedding of SARS-CoV-2 in a patient with COVID-19 associated acute respiratory distress syndrome leading to COVID-19 pneumonia after lung transplant. This raises concerns that replication-competent SARS-CoV-2 virus can persist for months post-infection and can lead to re-infection of grafts in the future.
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Key Words
- BAL, bronchoalveolar lavage
- BSL-3, Biosafety level-3
- COVID-19, coronavirus disease 2019
- CP, convalescent plasma
- CT, computed tomography
- LT, lung transplant
- NPS, nasopharyngeal swab
- RT-PCR, reverse transcriptase–polymerase chain reaction
- SARS-CoV-2, severe acute respiratory syndrome coronavirus 2
- VV-ECMO, veno-venous extracorporeal membrane oxygenation
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Franco-Mesa C, Erben Y, Perez AF, Ball CT, Barrett KM, Pham SM, Pochettino A, Fox WC, Miller DA, Sandhu SJS, Brott TG, Meschia JF. No Sex Differences in the Prevalence of Intracranial Aneurysms in Patients with Ascending Thoracic Aortic Aneurysms: A Multi-Center Experience. Ann Vasc Surg 2023:S0890-5096(23)00061-4. [PMID: 36773931 DOI: 10.1016/j.avsg.2023.01.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/15/2023] [Accepted: 01/24/2023] [Indexed: 02/11/2023]
Abstract
BACKGROUND Previous studies suggest a coprevalence of intracranial aneurysms (IA) in patients with infrarenal abdominal aortic aneurysms (AAA). We reviewed our multicenter experience in the detection/treatment of IAs in patients with ascending thoracic aortic aneurysms (ATAA) relative to patients without ATAA. METHODS Surgical cases of ATAA repaired at 3 sites from January 1998 to December 2018 were retrospectively reviewed. Out of these patients, those with intracranial vascular imaging were selected for our study, and these individuals were concurrently randomly matched with a control group of patients who underwent intracranial vascular imaging without an ATAA in a 1:1 ratio by age, sex, smoking history, and year of intracranial vascular imaging. Conditional logistic regression was used to calculate odds ratios (OR). RESULTS We reviewed 2176 ATAA repairs. 74% (n = 1,615) were men. Intracranial vascular imaging was available in 298 (13.7%) patients. Ninteen patients were found to have 22 IAs for a prevalence of 6.4%. Mean size of IA was 4.6 ± 3.3 mm; mean age at IA detection, 63.4 ± 12.1 years. IA was present on head imaging in 4.7% of male and 12.5% of female patients. Eleven (58%) patients were men. The OR of having IA in female versus male patients is 2.90, 95% confidence interval [CI] [1.08-7.50], P = 0.029. Time from IA diagnosis to ATAA repair was 1.7 ± 116.2 months. Two patients underwent treatment for IA, one ruptured and one unruptured. All were diagnosed before ATAA repair. Treatment included 1 clipping and 1 coiling with subsequent reintervention of the coiling using a flow diversion device. In the matched group of patients who had intracranial vascular imaging without ATAA, the rate of IA is 5.0%. IA was detected in 3.8% of males and 9.4% of female patients for an OR of 2.59, 95% CI [0.84-7.47], P = 0.083. Association within our study and matched groups, the OR of developing an IA with and without ATAA was not statistically significant 1.29, 95% CI [0.642.59], P = 0.48. There was also no evidence of sex differences in the association of ATAA with IA (interaction P = 0.88). The OR for the association of ATAA with IA was 1.33, 95% CI [0.46-3.84], P = 0.59 in females and 1.25, 95% CI [0.49-3.17], P = 0.64 in males. CONCLUSIONS Our study found that IA was present in 6.4% of patients with ATAA who had intracranial vascular imaging available. The odds of IA were 1.29 times higher than a matched cohort of patients who had intracranial vascular imaging without ATAA but this failed to achieve statistical significance. We found that the odds of IA were more than 2 times higher in females than males for both those with ATAA (OR = 2.90) and those without ATAA (OR = 2.59); however, it only reached statistical significance in those with ATAA.
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Garg P, Wadiwala IJ, Raavi L, Mateen N, Crestanello J, Pham SM, Jacob S. Transesophageal echocardiography: a tool for intraoperative assessment of coronary blood flow. J Surg Case Rep 2023; 2023:rjac603. [PMID: 36636654 PMCID: PMC9831647 DOI: 10.1093/jscr/rjac603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 12/11/2022] [Indexed: 01/11/2023] Open
Abstract
Transesophageal echocardiography (TEE) has become an indispensable part of cardiac surgery, but its potential for assessing coronary anatomy and blood flow remains underutilised. This case report presents a case of acute iatrogenic left main coronary artery obstruction following re-operative aortic valve replacement that was promptly diagnosed by intraoperative TEE and managed successfully by Bentall operation. We also emphasise the technique of TEE for coronary evaluation, its caveats and its clinical application during cardiac surgery.
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21
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El-Sayed Ahmed MM, Makey IA, Thomas M, Jacob S, Landolfo KP, Pham SM. Incidentally Discovered Cor Triatriatum Sinistrum Anomaly During Heart Transplant. Tex Heart Inst J 2022; 49:488990. [PMID: 36472916 PMCID: PMC9809093 DOI: 10.14503/thij-20-7453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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22
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Wadiwala IJ, Garg P, Alomari M, Elawady MS, Alamouti‐Fard E, Raavi L, Mateen N, Khan F, Hussain MWA, Pham SM, Jacob S. Accelerated LVAD pump thrombosis in COVID-19 patient: Case report and mini review. J Card Surg 2022; 37:5313-5319. [PMID: 36345681 PMCID: PMC9878257 DOI: 10.1111/jocs.17097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 10/08/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Coronavirus (COVID-19) infection exposes patients with heart failure specially who are on mechanical support to a higher risk of morbidity and mortality. AIMS To investigate the impact of COVID-19 infection on left ventricular assist device (LVAD) thrombosis in heart failure patients. MATERIALS & METHODS We searched the medical electronic records, Medline, PubMed and Cochrane databases for; (LVAD) AND (thrombosis)) AND (covid-19)) AND (heart failure). We divided cases reported into, LVAD thrombosis with COVID-19 infection and compare them with LVAD thrombosis without COVID-19 infection. Demographic data, LVAD device, presentation, treatment and outcomes were reviewed in all the LVAD thrombosis patients. RESULTS In addition to our case, 8 other cases of LVAD thrombosis associated with COVID and 9 cases of LVAD thrombosis without covid infection were found. Patients with Covid infection had worse presentation and outcomes (3 deaths VS. 1 death in non-covid group). DISCUSSION In LVAD patients, pump malfunction due to thrombus development in the inflow cannula, device body, or outflow graft can result in hemodynamic instability, hemolysis and other life-threatening complications. COVID infection significantly increases the risk of mortality in LVAD patient by accelerating the pump thrombosis due to elevated levels of endothelial protein C receptor and thrombomodulin along with procoagulants such as factor VIII, P-selectin, and von Willebrand factor. CONCLUSION Significant morbidity and mortality are attributed to LVAD thrombosis, which are exasperated by prothrombotic conditions created in COVID-19 infections.
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El-Sayed Ahmed MM, Landolfo KP, Jacob S, Sareyyupoglu B, Thomas M, Pham SM, Makey IA. Safe heart flush technique during recovery from donors after circulatory death. J Card Surg 2022; 37:5646-5648. [PMID: 36229938 PMCID: PMC10092136 DOI: 10.1111/jocs.17023] [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: 06/28/2022] [Accepted: 08/24/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND Donation after circulatory death is the donation after cardiac arrest. This technique has been employed and adopted by clinicians to overcome the shortage of available hearts for transplant. Warm ischemia time plays a pivotal role in the survival outcome of the heart recipients. AIM OF THE STUDY To assess the efficacy of using the Foley catheter to flush the heart during procurement from donation after circulatory death donors. METHODS We utilized a 2-WAY Foley catheter to flush the heart during procurement. The catheter was prepared and modified on the back table. RESULTS We were successfully able to flush the heart within 3 minutes from skin incision with a good recipient outcome. CONCLUSIONS Using the Foley catheter to flush the heart during recovery from donation after circulatory death donors was both efficient and fast.
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Jacob S, Ahmed MMES, Haddad OK, Orlando D, Landolfo C, Thomas M, Makey IA, Sareyyupoglu B, Landolfo K, Pham SM. Regression of Tricuspid Valve Regurgitation After Lung Transplant: A Single-Center Experience. Transplant Proc 2022; 54:2325-2328. [PMID: 36058747 DOI: 10.1016/j.transproceed.2022.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/07/2022] [Accepted: 08/02/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Although tricuspid regurgitation (TR) is common in candidates for lung transplant, no data or established guidelines exist regarding the need for surgical repair at the time of transplant. We aimed to evaluate the natural course of TR by assessing the incidence and extent of TR regression among patients who did not undergo tricuspid valve repair (TVR) concomitantly with lung transplant. METHODS We retrospectively identified adult patients who underwent lung transplant without TVR at our institution from 2001 through 2017. Pretransplant and posttransplant echocardiograms were reviewed to assess severity of TR, tricuspid annular plane systolic excursion, central venous pressure, mean pulmonary arterial pressure, and right ventricular size and function. RESULTS Among 553 included patients, 324 (58.7%) were men, the mean (SD) age was 61.9 years (12.7), and 417 (75.4%) had a double lung transplant. TR before transplant was reported as trivial in 265 patients (47.9%), mild in 235 (42.5%), moderate in 40 (7.2%), and severe in 13 (2.4%). After transplant, TR improved significantly overall (P < .001). TR improved in 193 patients: 158 patients (81.9%) by 1 grade and 35 patients (18.1%) by 2 or more grades. Additionally, of 53 patients with pretransplant moderate or severe TR, 44 (83%) had improvement to mild, trivial, or no TR. After transplant, 12 patients (2.2%) had no remaining TR. CONCLUSION The severity of TR improved or showed no change in most patients after lung transplant, which obviates the need for TVR among most lung transplant recipients.
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Shah SZ, Abdelmoneim Y, Pham SM, Elrefaei M. Association between SARS-CoV-2 infection and de novo HLA donor specific antibody production in lung transplant recipients: Single-center study. Hum Immunol 2022; 83:749-754. [PMID: 35987702 PMCID: PMC9376302 DOI: 10.1016/j.humimm.2022.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 07/08/2022] [Accepted: 07/18/2022] [Indexed: 11/04/2022]
Abstract
The COVID-19 pandemic has led to significant morbidity and mortality in lung transplant recipients. Respiratory viral infections may be associated with de-novo HLA donor-specific antibody production and impact lung transplant outcome. Since one of the immunomodulation strategies post-SARS-CoV-2 infection in lung transplant recipients include decreasing or holding anti-metabolites, concerns have been raised for higher incidence of de-novo HLA donor specific antibody production in lung transplant recipients. We performed a retrospective chart review of 24 consecutive lung transplant recipients diagnosed with COVID-19 to investigate this concern. We observed no significant differences in the CPRA or MFI levels of HLA class I and II antibodies pre- COVID-19 compared to 1 and 6 months post-COVID-19 diagnosis in 11/24 (45.8 %) LTR (p = 0.98 and p = 0.63 respectively). HLA class I and II DSA were detected in 5/24 LTR pre-COVID-19 diagnosis and persisted with no significant differences in the median MFI levels at 1 and 6 months post-COVID-19 diagnosis (p = 0.89). De-novo HLA class I and II DSA were detected in 1/24 (4.2 %) LTR at one month post-COVID-19 diagnosis and persisted with no significant differences in the median MFI levels at 1 and 6 months post-COVID-19 diagnosis (p = 0.54). Our results suggest that there was no significant association between SARS-CoV-2 infection and immunomodulation on pre-existing or de novo HLA donor specific antibodies.
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