Browsing by Subject "Myocardial infarction"
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Item 2023 ACC/AHA/ACCP/HRS Guideline for the Diagnosis and Management of Atrial Fibrillation(Elsevier, 2024) Joglar, José A.; Chung, Mina K.; Armbruster, Anastasia L.; Benjamin, Emelia J.; Chyou, Janice Y.; Cronin, Edmond M.; Deswal, Anita; Eckhardt, Lee L.; Goldberger, Zachary D.; Gopinathannair, Rakesh; Gorenek, Bulent; Hess, Paul L.; Hlatky, Mark; Hogan, Gail; Ibeh, Chinwe; Indik, Julia H.; Kido, Kazuhiko; Kusumoto, Fred; Link, Mark S.; Linta, Kathleen T.; Marcus, Gregory M.; McCarthy, Patrick M.; Patel, Nimesh; Patton, Kristen K.; Perez, Marco V.; Piccini, Jonathan P.; Russo, Andrea M.; Sanders, Prashanthan; Streur, Megan M.; Thomas, Kevin L.; Times, Sabrina; Tisdale, James E.; Valente, Anne Marie; Van Wagoner, David R.; Pharmacology and Toxicology, School of MedicineAim: The "2023 ACC/AHA/ACCP/HRS Guideline for the Diagnosis and Management of Patients With Atrial Fibrillation" provides recommendations to guide clinicians in the treatment of patients with atrial fibrillation. Methods: A comprehensive literature search was conducted from May 12, 2022, to November 3, 2022, encompassing studies, reviews, and other evidence conducted on human subjects that were published in English from PubMed, EMBASE, the Cochrane Library, the Agency for Healthcare Research and Quality, and other selected databases relevant to this guideline. Additional relevant studies, published through November 2022, during the guideline writing process, were also considered by the writing committee and added to the evidence tables, where appropriate. Structure: Atrial fibrillation is the most sustained common arrhythmia, and its incidence and prevalence are increasing in the United States and globally. Recommendations from the "2014 AHA/ACC/HRS Guideline for the Management of Patients With Atrial Fibrillation" and the "2019 AHA/ACC/HRS Focused Update of the 2014 AHA/ACC/HRS Guideline for the Management of Patients With Atrial Fibrillation" have been updated with new evidence to guide clinicians. In addition, new recommendations addressing atrial fibrillation and thromboembolic risk assessment, anticoagulation, left atrial appendage occlusion, atrial fibrillation catheter or surgical ablation, and risk factor modification and atrial fibrillation prevention have been developed.Item A Preliminary Study of Short-Term Sexual Function and Satisfaction among Men Post-Myocardial Infarction(Sage, 2022) Smith, Asa B.; Barton, Debra L.; Davis, Matthew; Jackson, Elizabeth A.; Smith, Jacqui; Wittmann, Daniela; School of NursingSexuality is an important component of holistic quality of life, and myocardial infarction (MI) negatively influences many aspects of sexuality, including sexual function. However, there is limited literature that examines sexuality beyond the most basic physical components. This pilot study aimed to describe the relationships between the physical, psychologic, and social domains of holistic sexuality at an early timepoint post-MI. Adult men post-MI were mailed self-report surveys at two weeks post discharge. Physical domains of sexuality were measured with the arousal, orgasm, erection, lubrication, and pain subscales of the Male Sexual Function Index, (MSFI). The social domain utilized the sexual satisfaction subscale of the MSFI. The psychologic domain included the desire subscale of the MSFI and sexual fear (Multidimensional Sexuality Questionnaire (MSQ)). Spearman correlations were estimated to examine associations among the different measurement subscales. Twenty-four men post-MI were analyzed. Average scores on the MSFI were 9.2 (SD 7.7). Desire and satisfaction were the highest scoring subscales among men when compared with other subscales (i.e., erection, lubrication). There was minimal evidence supporting a relationship between sexual fear and function. Additional research is also needed with larger samples, and among women post-MI.Item Absence of cardiomyocyte differentiation following transplantation of adult cardiac-resident Sca-1+ cells into infarcted mouse hearts(American Heart Association, 2018-12-18) Soonpaa, Mark H.; Lafontant, Pascal J.; Reuter, Sean; Scherschel, John A.; Srour, Edward F.; Zaruba, Marc-Michael; Rubart-von der Lohe, Michael; Field, Loren J.; Medicine, School of MedicineAlthough several lines of evidence suggest that the glycosyl phosphatidylinositol-anchored cell surface protein Sca-1 marks cardiac-resident stem cells, a critical analysis of the literature raises some concerns regarding their cardiomyogenic potential.1 Here, isolated adult cardiac-resident Sca-1+ cells were engrafted into infarcted hearts and monitored for cardiomyogenic differentiation. Donor cells were prepared from ACT-EGFP; MHC-nLAC double-transgenic mice ([C57/Bl6J x DBA/2J]F1 genetic background; all procedures followed were in accordance with Institutional Guidelines). The ACT-EGFP transgene targets ubiquitous expression of an enhanced green fluorescent protein reporter, and the MHC-nLAC transgene targets cardiomyocyte-restricted expression of a nuclear-localized β-galactosidase reporter. Donor cell survival was monitored via EGFP fluorescence, while cardiomyogenic differentiation was monitored by reacting with the chromogenic β-galactosidase substrate 5-bromo-4-chloro-3-indolyl-β-D-galactoside (X-GAL), which gives rise to a blue product.2 Double-transgenic hearts were dispersed with Blendzyme and the resulting cells reacted with an APC-conjugated anti-Sca-1 antibody and a PE-conjugated cocktail of antibodies recognizing hematopoietic lineage markers.3 Sca-1+, EGFP+, lineage- cells were then isolated via fluorescence-activated cell sorting (FACS; characterization of the donor cells is provided in Figure 1A), and 100,000 cells were injected into the infarct border zone of non-transgenic [C57/Bl6J x DBA/2J]F1 mice immediately following permanent coronary artery occlusion.Item Anti-Ferroptotic Treatment Deteriorates Myocardial Infarction by Inhibiting Angiogenesis and Altering Immune Response(MDPI, 2024-06-26) Stairley, Rebecca A.; Trouten, Allison M.; Li, Shuang; Roddy, Patrick L.; DeLeon-Pennell, Kristine Y.; Lee, Kyu-Ho; Sucov, Henry M.; Liu, Chun; Tao, Ge; Pediatrics, School of MedicineMammalian cardiomyocytes have limited regenerative ability. Cardiac disease, such as congenital heart disease and myocardial infarction, causes an initial loss of cardiomyocytes through regulated cell death (RCD). Understanding the mechanisms that govern RCD in the injured myocardium is crucial for developing therapeutics to promote heart regeneration. We previously reported that ferroptosis, a non-apoptotic and iron-dependent form of RCD, is the main contributor to cardiomyocyte death in the injured heart. To investigate the mechanisms underlying the preference for ferroptosis in cardiomyocytes, we examined the effects of anti-ferroptotic reagents in infarcted mouse hearts. The results revealed that the anti-ferroptotic reagent did not improve neonatal heart regeneration, and further compromised the cardiac function of juvenile hearts. On the other hand, ferroptotic cardiomyocytes played a supportive role during wound healing by releasing pro-angiogenic factors. The inhibition of ferroptosis in the regenerating mouse heart altered the immune and angiogenic responses. Our study provides insights into the preference for ferroptosis over other types of RCD in stressed cardiomyocytes, and guidance for designing anti-cell-death therapies for treating heart disease.Item Aortic root thrombosis leading to STEMI in a Heartmate 3 patient(Springer, 2023-03) Ilonze, Onyedika J.; Torabi, Asad; Guglin, Maya; Saleem, Kashif; Rao, Roopa; Medicine, School of MedicineDespite left ventricular assist device (LVAD) therapy becoming established for end-stage heart failure (HF), complications remain. Thromboembolic complications are rare with the newest iteration of LVADs. We managed a case of a continuous-flow LVAD-related thromboembolic event that presented as an acute myocardial infarction. A 64-year-old male who underwent Heartmate III® LVAD implantation had crushing substernal chest pain and ventricular tachycardia with acute anterolateral myocardial infarction on electrocardiogram on post-operative day 9. Echocardiography showed closed aortic valve and mild aortic regurgitation, but CT angiography showed thrombus within the left coronary cusp despite full anticoagulation. Continuous suction of blood from the left ventricle despite pulsatile flow into the ascending aorta resulted in a minimally opening aortic valve and stagnation of blood leading to thrombosis on the coronary cusp. Apart from post-operative ventricular tachycardia and right ventricular failure, he had adequate body size (body surface area 2.13 m2) and no post-operative or coagulopathy which could predispose him to thrombosis. Coronary angiography revealed stable severe three-vessel disease and thrombus in left main and proximal circumflex artery, and he had aspiration thrombectomy, and international normalized ratio target was increased to 3–3.5 with aspirin 325 mg daily. He survived to discharge but died 60 days after LVAD implant with multiple low flow alarms, and cardiac arrest. We review the literature and propose a management algorithm for patients with impaired AV opening and aortic root thrombosis.Item Atypical depression and double depression predict new-onset cardiovascular disease in U.S. adults(Wiley, 2018-01) Case, Stephanie M.; Sawhney, Manisha; Stewart, Jesse C.; Psychology, School of ScienceBACKGROUND: Although depression is a risk factor for cardiovascular disease (CVD), it is unknown whether this risk varies across depressive disorder subtypes. Thus, we investigated atypical major depressive disorder (MDD) and double depression as predictors of new-onset CVD in a nationally representative sample of U.S. adults. METHODS: Prospective data from 28,726 adults initially free of CVD who participated in Wave 1 (2001-2002) and Wave 2 (2004-2005) of the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC) were examined. Lifetime depressive disorder subtypes (Wave 1) and incident CVD (Wave 2) were determined by structured interviews. RESULTS: We identified 1,116 incident CVD cases. In demographics adjusted models, the atypical MDD group had a higher odds of incident CVD than the no depression history (OR = 2.19, 95% CI: 1.71-2.81, P < .001), dysthymic disorder only (OR = 1.61, 95% CI: 1.08-2.39, P = .019), and nonatypical MDD (OR = 1.46, 95% CI: 1.11-1.91, P = .006) groups. Likewise, the double depression group had a higher odds of incident CVD than the no depression history (OR = 2.17, 95% CI: 1.92-2.45, P < .001), dysthymic disorder only (OR = 1.59, 95% CI: 1.16-2.19, P = .004), and MDD only (OR = 1.46, 95% CI: 1.20-1.77, P < .001) groups. Relationships were similar but attenuated after adjustment for CVD risk factors and anxiety disorders. CONCLUSIONS: Adults with atypical MDD or double depression may be subgroups of the depressed population at particularly high risk of new-onset CVD. Thus, these subgroups may (a) be driving the overall depression-CVD relationship and (b) be in need of earlier and/or more intense CVD primary prevention efforts to reduce their excess CVD burden.Item Chronic heart failure following hemorrhagic myocardial infarction: mechanism, treatment and outlook(Shared Science Publishers, 2023-02-13) Chan, Shing Fai; Vora, Keyur; Dharmakumar, Rohan; Medicine, School of MedicineMyocardial infarction (MI), the blockage of arterial blood supply of the heart, is among the most common causes of death worldwide. Even when patients receive immediate treatment by re-opening blocked arteries, they often develop chronic heart failure (CHF) in the aftermath of MI events. Yet, the factors that contribute to the development of MI-associated CHF are poorly understood. In our recent study (Nat Commun 13:6394), we link intramyocardial hemorrhage, an injury which can occur during reperfusion of areas affected by MI, to an increased risk of CHF. Mechanistically, our data suggest that an iron-induced adverse cascade of events after hemorrhagic MI drives fatty degeneration of infarcted tissue, which ultimately contributes to negative cardiac remodeling. In this Microreview, we discuss the implications of our findings regarding the molecular mechanism, more targeted treatment options as well as perspectives in the clinical care of CHF after hemorrhagic MI.Item Clopidogrel Pharmacogenomics: Validation in a Population of South-Asian Ancestry(Elsevier, 2023-08-21) Kreutz, Rolf P.; Medicine, School of MedicineItem Depression and Anxiety Screens as Predictors of 8-Year Incidence of Myocardial Infarction and Stroke in Primary Care Patients(American Psychosomatic Society, 2016-06) Stewart, Jesse C.; Hawkins, Misty A. W.; Khambaty, Tasneem; Perkins, Anthony J.; Callahan, Christopher M.; Psychology, School of ScienceBecause depression and anxiety are typically studied in isolation, our purpose was to examine the relative importance of these overlapping emotional factors in predicting incident cardiovascular disease (CVD). Methods We examined depression and anxiety screens, and their individual items, as predictors of incident hard CVD events, myocardial infarction, and stroke over eight years in a diverse sample of 2,041 older primary care patients initially free of CVD. At baseline, participants completed self-report depression and anxiety screens. Data regarding CVD events were obtained from an electronic medical record system and the Centers for Medicare and Medicaid Services analytic files. Results During follow-up, 683 (33%) experienced a CVD event. Cox proportional hazards models – adjusted for demographic and CVD risk factors – revealed that a positive anxiety screen, but not a positive depression screen, was associated with an increased risk of a hard CVD event in separate models (Years 0–3: Anxiety HR=1.54, p<.001; Years 3+: Anxiety HR=0.99, p=.93; Depression HR=1.10, p=.41), as well as when entered into the same model (Years 0–3: Anxiety HR=1.53, p<.001; Years 3+: Anxiety HR=0.99, p=.99; Depression HR=1.03, p=.82). Analyses examining individual items and secondary outcomes showed that the anxiety-CVD association was largely driven by the feeling anxious item and the myocardial infarction outcome. Conclusions Anxiety, especially feeling anxious, is a unique risk factor for CVD events in older adults, independent of conventional risk factors and depression. Anxiety deserves increased attention as a potential factor relevant to CVD risk stratification and a potential target of CVD primary prevention efforts.Item Differences in Prognostic Value of Myocardial Perfusion SPECT using High-Efficiency Solid-State Detector Between Men and Women in a Large International Multi-Center Study(American Heart Association, 2022) Tamarappoo, Balaji K.; Otaki, Yuka; Sharir, Tali; Hu, Lien-Hsin; Gransar, Heidi; Einstein, Andrew J.; Fish, Mathews B.; Ruddy, Terrence D.; Kaufmann, Philipp; Sinusas, Albert J.; Miller, Edward J.; Bateman, Timothy M.; Dorbala, Sharmila; Di Carli, Marcelo; Eisenberg, Evann; Liang, Joanna X.; Dey, Damini; Berman, Daniel S.; Slomka, Piotr J.; Medicine, School of MedicineBackground: Semiquantitative assessment of stress myocardial perfusion defect has been shown to have greater prognostic value for prediction of major adverse cardiac events (MACE) in women compared with men in single-center studies with conventional single-photon emission computed tomography (SPECT) cameras. We evaluated sex-specific difference in the prognostic value of automated quantification of ischemic total perfusion defect (ITPD) and the interaction between sex and ITPD using high-efficiency SPECT cameras with solid-state detectors in an international multicenter imaging registry (REFINE SPECT [Registry of Fast Myocardial Perfusion Imaging With Next-Generation SPECT]). Methods: Rest and exercise or pharmacological stress SPECT myocardial perfusion imaging were performed in 17 833 patients from 5 centers. MACE was defined as the first occurrence of death or myocardial infarction. Total perfusion defect (TPD) at rest, stress, and ejection fraction were quantified automatically by software. ITPD was given by stressTPD-restTPD. Cox proportional hazards model was used to evaluate the association between ITPD versus MACE-free survival and expressed as a hazard ratio. Results: In 10614 men and 7219 women, with a median follow-up of 4.75 years (interquartile range, 3.7-6.1), there were 1709 MACE. In a multivariable Cox model, after adjusting for revascularization and other confounding variables, ITPD was associated with MACE (hazard ratio, 1.08 [95% CI, 1.05-1.1]; P<0.001). There was an interaction between ITPD and sex (P<0.001); predicted survival for ITPD<5% was worse among men compared to women, whereas survival among women was worse than men for ITPD≥5%, P<0.001. Conclusions: In the international, multicenter REFINE SPECT registry, moderate and severe ischemia as quantified by ITPD from high-efficiency SPECT is associated with a worse prognosis in women compared with men.