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Takase B, Ikeda T, Shimizu W, Abe H, Aiba T, Chinushi M, Koba S, Kusano K, Niwano S, Takahashi N, Takatsuki S, Tanno K, Watanabe E, Yoshioka K, Amino M, Fujino T, Iwasaki Y, Kohno R, Kinoshita T, Kurita Y, Masaki N, Murata H, Shinohara T, Yada H, Yodogawa K, Kimura T, Kurita T, Nogami A, Sumitomo N. JCS/JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia. J Arrhythm 2024; 40:655-752. [PMID: 39139890 PMCID: PMC11317726 DOI: 10.1002/joa3.13052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 04/22/2024] [Indexed: 08/15/2024] Open
Affiliation(s)
| | - Takanori Ikeda
- Department of Cardiovascular MedicineToho University Faculty of Medicine
| | - Wataru Shimizu
- Department of Cardiovascular MedicineNippon Medical School
| | - Haruhiko Abe
- Department of Heart Rhythm ManagementUniversity of Occupational and Environmental HealthJapan
| | - Takeshi Aiba
- Department of Clinical Laboratory Medicine and GeneticsNational Cerebral and Cardiovascular Center
| | | | - Shinji Koba
- Division of Cardiology, Department of MedicineShowa University School of Medicine
| | - Kengo Kusano
- Department of Cardiovascular MedicineNational Cerebral and Cardiovascular Center
| | - Shinichi Niwano
- Department of Cardiovascular MedicineKitasato University School of Medicine
| | - Naohiko Takahashi
- Department of Cardiology and Clinical Examination, Faculty of MedicineOita University
| | | | - Kaoru Tanno
- Cardiovascular Center, Cardiology DivisionShowa University Koto‐Toyosu Hospital
| | - Eiichi Watanabe
- Division of Cardiology, Department of Internal MedicineFujita Health University Bantane Hospital
| | | | - Mari Amino
- Department of CardiologyTokai University School of Medicine
| | - Tadashi Fujino
- Department of Cardiovascular MedicineToho University Faculty of Medicine
| | - Yu‐ki Iwasaki
- Department of Cardiovascular MedicineNippon Medical School
| | - Ritsuko Kohno
- Department of Heart Rhythm ManagementUniversity of Occupational and Environmental HealthJapan
| | - Toshio Kinoshita
- Department of Cardiovascular MedicineToho University Faculty of Medicine
| | - Yasuo Kurita
- Cardiovascular Center, Mita HospitalInternational University of Health and Welfare
| | - Nobuyuki Masaki
- Department of Intensive Care MedicineNational Defense Medical College
| | | | - Tetsuji Shinohara
- Department of Cardiology and Clinical Examination, Faculty of MedicineOita University
| | - Hirotaka Yada
- Department of CardiologyInternational University of Health and Welfare Mita Hospital
| | - Kenji Yodogawa
- Department of Cardiovascular MedicineNippon Medical School
| | - Takeshi Kimura
- Cardiovascular MedicineKyoto University Graduate School of Medicine
| | | | - Akihiko Nogami
- Department of Cardiology, Faculty of MedicineUniversity of Tsukuba
| | - Naokata Sumitomo
- Department of Pediatric CardiologySaitama Medical University International Medical Center
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2
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Zhang X, Xiao J, Yang F, Qu H, Ye C, Chen S, Guo Y. Identification of sudden cardiac death from human blood using ATR-FTIR spectroscopy and machine learning. Int J Legal Med 2024; 138:1139-1148. [PMID: 38047927 DOI: 10.1007/s00414-023-03118-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/25/2023] [Indexed: 12/05/2023]
Abstract
OBJECTIVE The aim of this study is to identify a rapid, sensitive, and non-destructive auxiliary approach for postmortem diagnosis of SCD, addressing the challenges faced in forensic practice. METHODS ATR-FTIR spectroscopy was employed to collect spectral features of blood samples from different cases, combined with pathological changes. Mixed datasets were analyzed using ANN, KNN, RF, and SVM algorithms. Evaluation metrics such as accuracy, precision, recall, F1-score and confusion matrix were used to select the optimal algorithm and construct the postmortem diagnosis model for SCD. RESULTS A total of 77 cases were collected, including 43 cases in the SCD group and 34 cases in the non-SCD group. A total of 693 spectrogram were obtained. Compared to other algorithms, the SVM algorithm demonstrated the highest accuracy, reaching 95.83% based on spectral biomarkers. Furthermore, by combing spectral biomarkers with age, gender, and cardiac histopathological changes, the accuracy of the SVM model could get 100%. CONCLUSION Integrating artificial intelligence technology, pathology, and physical chemistry analysis of blood components can serve as an effective auxiliary method for postmortem diagnosis of SCD.
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Affiliation(s)
- Xiangyan Zhang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Jiao Xiao
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Fengqin Yang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Hongke Qu
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China
| | - Chengxin Ye
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Sile Chen
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Yadong Guo
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China.
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3
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Scharinger B, Boxhammer E, Rezar R, Hecht S, Wernly S, Widhalm T, Lichtenauer M, Hoppe UC, Hergan K, Wernly B, Strohmer B, Kaufmann R. Cardiac MRI after Sudden Cardiac Arrest: A Systematic Review. Radiol Cardiothorac Imaging 2024; 6:e230216. [PMID: 38634744 PMCID: PMC11056749 DOI: 10.1148/ryct.230216] [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: 06/20/2023] [Revised: 01/08/2024] [Accepted: 03/06/2024] [Indexed: 04/19/2024]
Abstract
Purpose To perform a systematic review to assess the diagnostic and prognostic value of cardiac MRI after sudden cardiac arrest (SCA). Materials and Methods PubMed and Cochrane Library databases were systematically searched for studies investigating cardiac MRI after SCA in adult patients (≥18 years of age). The time frame of the encompassed studies spans from January 2012 to January 2023. The study protocol was preregistered in OSF Registries (www.osf.io/nxaev), and the systematic review was performed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The quality of the included studies was evaluated using the Newcastle-Ottawa quality assessment scale. Results Fourteen studies involving 1367 individuals, 1257 (91.9%) of whom underwent cardiac MRI, were included. Inconsistent findings were reported on the diagnostic value of cardiac MRI-specific findings. The included studies demonstrated the following main findings: (a) cardiac MRI led to a new or alternative diagnosis in patients with SCA; (b) cardiac MRI identified pathologic or arrhythmogenic substrates; (c) cardiac MRI helped detect myocardial edema (potentially reversible); (d) cardiac MRI provided evidence for the occurrence of adverse events; and (e) functional markers or ventricular dimensions were considered prognostically relevant in a few studies. Relevant challenges in this systematic review were the lack of comparators and reference standards relative to cardiac MRI as the index test and patient selection bias. Conclusion Cardiac MRI following SCA can contribute to the diagnostic process and offer supplementary information essential for treatment planning. Limitations of the review include studies with insufficient comparators and potential bias in patient selection. Systematic review registration link: osf.io/nxaev Keywords: Cardiac MRI, Cardiovascular Disease, Cardiomyopathy, Ischemia, Myocardial Edema, Sudden Cardiac Arrest © RSNA, 2024.
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Affiliation(s)
| | | | - Richard Rezar
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
| | - Stefan Hecht
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
| | - Sarah Wernly
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
| | - Tobias Widhalm
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
| | - Michael Lichtenauer
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
| | - Uta C. Hoppe
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
| | - Klaus Hergan
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
| | - Bernhard Wernly
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
| | - Bernhard Strohmer
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
| | - Reinhard Kaufmann
- From the Department of Radiology (B. Scharinger, S.H., K.H., R.K.),
Department of Internal Medicine II, Division of Cardiology (E.B., R.R., T.W.,
M.L., U.C.H., B. Strohmer), and Center for Public Health and Healthcare Research
(B.W.), Paracelsus Medical University, 5110 Oberndorf, 5020 Salzburg, Austria;
and Department of Internal Medicine, General Hospital of Oberndorf, Oberndorf,
Austria (S.W., B.W.)
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De Giorgi F, Scaramuzzo G, Bertini M, Malagù M. A modified approach to percutaneous ultrasound-guided left stellate ganglion block for drug-refractory electrical storm: a case report. Eur Heart J Case Rep 2024; 8:ytae101. [PMID: 38476286 PMCID: PMC10928486 DOI: 10.1093/ehjcr/ytae101] [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: 05/23/2023] [Revised: 11/27/2023] [Accepted: 02/16/2024] [Indexed: 03/14/2024]
Abstract
Background The use of percutaneous stellate ganglion block (SGB) in the management of drug-refractory electrical storm (ES) has been increasingly reported in the last years. Few data are available on the safety, duration, and dosage of local anaesthetic used. Case summary A 66-year-old male patient with a history of ischaemic cardiomyopathy and an implantable cardioverter-defibrillator (ICD) presented to the emergency room complaining several ventricular arrhythmias and ICD shocks received in the last 24 h. He was treated with many lines of anti-arrhythmic drugs but his condition deteriorated with cardiovascular instability and respiratory distress, so he was intubated. The ES still worsened (82 episodes of ventricular arrhythmias), so we performed an ultrasound-guided left SGB, using a modified technique, with success in suppressing the ventricular arrhythmias. The patient was then treated with electrophysiological study and catheter ablation. Discussion The ultrasound approach to SGB is feasible in emergency setting, and it is safe and effective also using a modified and easier technique in patient with difficult sonographic visualization of the neck structures. Moreover, it is possible and safe to use a combination of short-acting rapid-onset local anaesthetic with a long-lasting one with a good outcome.
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Affiliation(s)
- Francesco De Giorgi
- Anesthesia and Intensive Care Unit, Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Gaetano Scaramuzzo
- Anesthesia and Intensive Care Unit, Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Matteo Bertini
- Cardiology Unit, Azienda Ospedaliero-Universitaria di Ferrara, Via Aldo Moro, 8, Ferrara 44124, Italy
| | - Michele Malagù
- Cardiology Unit, Azienda Ospedaliero-Universitaria di Ferrara, Via Aldo Moro, 8, Ferrara 44124, Italy
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Shen T, Li Y, Liu T, Lian Y, Kong L. Association between Mycoplasma pneumoniae infection, high‑density lipoprotein metabolism and cardiovascular health (Review). Biomed Rep 2024; 20:39. [PMID: 38357242 PMCID: PMC10865299 DOI: 10.3892/br.2024.1729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/09/2024] [Indexed: 02/16/2024] Open
Abstract
The association between Mycoplasma pneumoniae (M. pneumoniae) infection, high-density lipoprotein metabolism and cardiovascular disease is an emerging research area. The present review summarizes the basic characteristics of M. pneumoniae infection and its association with high-density lipoprotein and cardiovascular health. M. pneumoniae primarily invades the respiratory tract and damages the cardiovascular system through various mechanisms including adhesion, invasion, secretion of metabolites, production of autoantibodies and stimulation of cytokine production. Additionally, the present review highlights the potential role of high-density lipoprotein for the development of prevention and intervention of M. pneumoniae infection and cardiovascular disease, and provides suggestions for future research directions and clinical practice. It is urgent to explore the specific mechanisms underlying the association between M. pneumoniae infection, high-density lipoprotein metabolism, and cardiovascular disease and analyze the roles of the immune system and inflammatory response.
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Affiliation(s)
- Tao Shen
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Yanfang Li
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Tingting Liu
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Yunzhi Lian
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Luke Kong
- Department of Clinical Laboratory, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
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Aggarwal K, Boyapati SP, Valecha J, Noor A, Kanwal F, Jain R, Kanagala SG. Arrhythmias and Hypertrophic Cardiomyopathy: Unravelling the Connection. Curr Cardiol Rev 2024; 20:39-48. [PMID: 38279754 PMCID: PMC11327833 DOI: 10.2174/011573403x279223231227111737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/15/2023] [Accepted: 11/30/2023] [Indexed: 01/28/2024] Open
Abstract
Hypertrophic cardiomyopathy (HCM) results from gene mutations affecting cardiac sarcomeres and is inherited in an autosomal dominant manner. With a prevalence of 1:200-1:500 in the general population, HCM is characterised by a hypertrophied and non-dilated left ventricle with predominant involvement of the interventricular septum. The myocardium's structural and intracellular factors, combined with triggers such as physical exertion, autonomic dysfunction, and ischemia, can lead to reentry events, and atrial and ventricular arrhythmias, including atrial fibrillation (AF) which is common among HCM patients. To manage the increased risk of mortality arising from congestive heart failure and thromboembolism, in patients with AF long-term anticoagulation and antiarrhythmic drugs are employed. HCM patients may also encounter supraventricular and ventricular arrhythmias, such as nonsustained ventricular tachycardia and ventricular premature beats, which can potentially lead to sudden cardiac death and necessitate treatment with implanted defibrillators. Physicians must comprehensively analyse clinical, anatomical, hemodynamic, rhythmic, functional, and genetic characteristics to identify HCM patients at high risk of sudden death. This article aims to discuss the pathophysiology of arrhythmia in HCM and clinical recommendations for various ventricular and atrial fibrillation including catheter ablation and implantable cardioverter-defibrillator (ICD).
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Affiliation(s)
| | | | | | - Amna Noor
- Services Hospital Center, Lahore, Pakistan
| | - Fnu Kanwal
- Chandka Medical College, Larkana, Sindh, Pakistan
| | - Rohit Jain
- Penn State Milton S Hershey Medical Center, Hershey, Pennsylvania, USA
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López-Millán Infantes JM, Coca-Gamito C, Cámara-Faraig A, Díaz-Infante E, García-Rubira JC. Stellate ganglion block for the management of electrical storm: An observational study. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2024; 71:1-7. [PMID: 37666452 DOI: 10.1016/j.redare.2023.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 01/11/2023] [Indexed: 09/06/2023]
Abstract
INTRODUCTION Electrical storm is a life-threatening emergency with a high mortality rate. When acute conventional treatment is ineffective, stellate ganglion block can help control arrhythmia by providing a visceral cervicothoracic sympathetic block. The objective of this study is to assess the effectiveness and safety of stellate ganglion block in the management of refractory arrhythmic storm. METHOD Follow-up of a cohort of patients with refractory electrical storm that met the criteria for performing stellate ganglion block. The block was ultrasound-guided at C6 using local anaesthetic and a steroid - left unilateral first, bilateral if no response, followed by fluoroscopy-guided radiofrequency ablation at C7 if there was a favourable response but subsequent relapse. RESULTS Seven patients were included. The in-hospital mortality rate was 14.29%. Four patients received unilateral and 3 bilateral stellate ganglion block. Six were ablated and 1 received an implantable cardioverter-defibrillator. Electrical storm was controlled temporarily beyond the effect of the local anaesthetic in all patients. Three patients underwent radiofrequency ablation and 2 underwent surgical thoracic sympathectomy. The only side effect was Horner's syndrome, which was observed in all cases after administering a stellate ganglion block with local anaesthetic. Two patients died after discharge and 4 are alive at the time of writing, 3 of them have not been re-admitted for ventricular events for more than 2 years. CONCLUSION Ultrasound-guided stellate ganglion block is an effective and safe complement to standard cardiological treatment of refractory electrical storm.
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Affiliation(s)
- J M López-Millán Infantes
- Department of Anaesthesiology, Critical Care and Pain Medicine, Virgen Macarena University Hospital, Seville, Spain.
| | - C Coca-Gamito
- Department of Anaesthesiology, Critical Care and Pain Medicine, Virgen Macarena University Hospital, Seville, Spain
| | - A Cámara-Faraig
- Department of Anaesthesiology, Critical Care and Pain Medicine, Virgen Macarena University Hospital, Seville, Spain
| | - E Díaz-Infante
- Department of Cardiology, Arrhythmia Unit, Virgen Macarena University Hospital, Seville, Spain
| | - J C García-Rubira
- Department of Cardiology, Coronary Unit, Virgen Macarena University Hospital, Seville, Spain
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Borchert W, Grady ST, Chen J, DeVille NV, Roscoe C, Chen F, Mita C, Holland I, Wilt GE, Hu CR, Mehta U, Nethery RC, Albert CM, Laden F, Hart JE. Air Pollution and Temperature: a Systematic Review of Ubiquitous Environmental Exposures and Sudden Cardiac Death. Curr Environ Health Rep 2023; 10:490-500. [PMID: 37845484 PMCID: PMC11016309 DOI: 10.1007/s40572-023-00414-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2023] [Indexed: 10/18/2023]
Abstract
PURPOSE OF REVIEW Environmental exposures have been associated with increased risk of cardiovascular mortality and acute coronary events, but their relationship with out-of-hospital cardiac arrest (OHCA) and sudden cardiac death (SCD) remains unclear. SCD is an important contributor to the global burden of cardiovascular disease worldwide. RECENT FINDINGS Current literature suggests a relationship between environmental exposures and cardiovascular disease, but their relationship with OHCA/SCD remains unclear. A literature search was conducted in PubMed, Embase, Web of Science, and Global Health. Of 5138 studies identified by our literature search, this review included 30 studies on air pollution, 42 studies on temperature, 6 studies on both air pollution and temperature, and 1 study on altitude exposure and OHCA/SCD. Particulate matter air pollution, ozone, and both hot and cold temperatures are associated with increased risk of OHCA/SCD. Pollution and other exposures related to climate change play an important role in OHCA/SCD incidence.
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Affiliation(s)
- William Borchert
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA.
- Harvard Kenneth C. Griffin Graduate School of Arts and Sciences, Cambridge, MA, USA.
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
| | - Stephanie T Grady
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Jie Chen
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Nicole V DeVille
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
- Department of Epidemiology and Biostatistics, School of Public Health, University of Nevada, Las Vegas, NV, USA
| | - Charlotte Roscoe
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Futu Chen
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA
- Harvard Kenneth C. Griffin Graduate School of Arts and Sciences, Cambridge, MA, USA
| | - Carol Mita
- Countway Library, Harvard Medical School, Boston, MA, USA
| | - Isabel Holland
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Grete E Wilt
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA
- Harvard Kenneth C. Griffin Graduate School of Arts and Sciences, Cambridge, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Cindy R Hu
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA
- Harvard Kenneth C. Griffin Graduate School of Arts and Sciences, Cambridge, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Unnati Mehta
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA
- Harvard Kenneth C. Griffin Graduate School of Arts and Sciences, Cambridge, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Rachel C Nethery
- Department of Biostatistics, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Christine M Albert
- Department of Cardiology, Smidt Heart Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA
- Division of Preventative Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Francine Laden
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
| | - Jaime E Hart
- Department of Environmental Health, Harvard TH Chan School of Public Health, 665 Huntington Avenue, Building 1, Room 1301, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
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9
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Wauchop M, Rafatian N, Zhao Y, Chen W, Gagliardi M, Massé S, Cox BJ, Lai P, Liang T, Landau S, Protze S, Gao XD, Wang EY, Tung KC, Laksman Z, Lu RXZ, Keller G, Nanthakumar K, Radisic M, Backx PH. Maturation of iPSC-derived cardiomyocytes in a heart-on-a-chip device enables modeling of dilated cardiomyopathy caused by R222Q-SCN5A mutation. Biomaterials 2023; 301:122255. [PMID: 37651922 PMCID: PMC10942743 DOI: 10.1016/j.biomaterials.2023.122255] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/17/2023] [Accepted: 07/23/2023] [Indexed: 09/02/2023]
Abstract
To better understand sodium channel (SCN5A)-related cardiomyopathies, we generated ventricular cardiomyocytes from induced pluripotent stem cells obtained from a dilated cardiomyopathy patient harbouring the R222Q mutation, which is only expressed in adult SCN5A isoforms. Because the adult SCN5A isoform was poorly expressed, without functional differences between R222Q and control in both embryoid bodies and cell sheet preparations (cultured for 29-35 days), we created heart-on-a-chip biowires which promote myocardial maturation. Indeed, biowires expressed primarily adult SCN5A with R222Q preparations displaying (arrhythmogenic) short action potentials, altered Na+ channel biophysical properties and lower contractility compared to corrected controls. Comprehensive RNA sequencing revealed differential gene regulation between R222Q and control biowires in cellular pathways related to sarcoplasmic reticulum and dystroglycan complex as well as biological processes related to calcium ion regulation and action potential. Additionally, R222Q biowires had marked reductions in actin expression accompanied by profound sarcoplasmic disarray, without differences in cell composition (fibroblast, endothelial cells, and cardiomyocytes) compared to corrected biowires. In conclusion, we demonstrate that in addition to altering cardiac electrophysiology and Na+ current, the R222Q mutation also causes profound sarcomere disruptions and mechanical destabilization. Possible mechanisms for these observations are discussed.
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Affiliation(s)
- Marianne Wauchop
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Naimeh Rafatian
- Division of Cardiology and Peter Munk Cardiac Center, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - Yimu Zhao
- Toronto General Hospital Research Institute, Toronto, ON, M5G 2C4, Canada; Institute of Biomedical Engineering, University of Toronto, Toronto, ON, M5S 3G9, Canada
| | - Wenliang Chen
- Division of Cardiology and Peter Munk Cardiac Center, University Health Network, Toronto, ON, M5G 1L7, Canada; Department of Biology, York University, Toronto, ON, M3J 1P3, Canada
| | - Mark Gagliardi
- McEwen Stem Cell Institute, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - Stéphane Massé
- Division of Cardiology and Peter Munk Cardiac Center, University Health Network, Toronto, ON, M5G 1L7, Canada; Toronto General Hospital Research Institute, Toronto, ON, M5G 2C4, Canada; The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, Toronto, ON, M5G 2C4, Canada
| | - Brian J Cox
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada; Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Patrick Lai
- Division of Cardiology and Peter Munk Cardiac Center, University Health Network, Toronto, ON, M5G 1L7, Canada; Toronto General Hospital Research Institute, Toronto, ON, M5G 2C4, Canada; The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, Toronto, ON, M5G 2C4, Canada
| | - Timothy Liang
- Division of Cardiology and Peter Munk Cardiac Center, University Health Network, Toronto, ON, M5G 1L7, Canada; Toronto General Hospital Research Institute, Toronto, ON, M5G 2C4, Canada; The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, Toronto, ON, M5G 2C4, Canada
| | - Shira Landau
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON, M5S 3G9, Canada
| | - Stephanie Protze
- McEwen Stem Cell Institute, University Health Network, Toronto, ON, M5G 1L7, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Xiao Dong Gao
- Department of Biology, York University, Toronto, ON, M3J 1P3, Canada
| | - Erika Yan Wang
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON, M5S 3G9, Canada
| | - Kelvin Chan Tung
- McEwen Stem Cell Institute, University Health Network, Toronto, ON, M5G 1L7, Canada
| | - Zachary Laksman
- Department of Medicine, University of British Columbia, Vancouver, BC, V6E 1M7, Canada
| | - Rick Xing Ze Lu
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON, M5S 3G9, Canada
| | - Gordon Keller
- McEwen Stem Cell Institute, University Health Network, Toronto, ON, M5G 1L7, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada
| | - Kumaraswamy Nanthakumar
- Division of Cardiology and Peter Munk Cardiac Center, University Health Network, Toronto, ON, M5G 1L7, Canada; Toronto General Hospital Research Institute, Toronto, ON, M5G 2C4, Canada; The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, Toronto, ON, M5G 2C4, Canada.
| | - Milica Radisic
- Toronto General Hospital Research Institute, Toronto, ON, M5G 2C4, Canada; Institute of Biomedical Engineering, University of Toronto, Toronto, ON, M5S 3G9, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada, M5S 3E5.
| | - Peter H Backx
- Division of Cardiology and Peter Munk Cardiac Center, University Health Network, Toronto, ON, M5G 1L7, Canada; Department of Biology, York University, Toronto, ON, M3J 1P3, Canada; Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, ON, M5S 3E1, Canada.
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10
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Alkhalaileh F, Wazni OM, Kiang A, Parker J, Ellis S, Kanj M, Farwati M, Menon V, Callahan T, Baranowski B, Nakhla S, Taigen T, Santangeli P, Kewan T, Cantillon D, Sroubek J, Rickard J, Zmaili M, Bhargava M, Saliba WI, Nakagawa H, Hussein AA. Ischemic or Coronary Evaluations in Patients With Monomorphic VT Electrical Storm Undergoing VT Ablation. JACC Clin Electrophysiol 2023; 9:1890-1899. [PMID: 37542488 DOI: 10.1016/j.jacep.2023.04.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 04/05/2023] [Accepted: 04/27/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND Monomorphic ventricular tachycardia (VT) electrical storm (ES) in patients with coronary artery disease is dependent on scarred myocardium. The role of routine ischemic or coronary evaluations before ablation in patients presenting with monomorphic VT storm, without acute coronary syndrome (ACS), remains unknown. OBJECTIVES This study sought to assess the impact of ischemic or coronary evaluations on procedural outcomes and post-ablation mortality in monomorphic VT storm patients. METHODS All patients undergoing VT ablation at the Cleveland Clinic from 2014 to 2020 after presenting with monomorphic VT storm were enrolled in a prospectively maintained registry. The associations among ischemic or coronary evaluations and short-term procedural efficacy, acute outcomes, and mortality during follow-up were assessed. RESULTS A total of 97 consecutive patients with monomorphic VT storm in the absence of ACS underwent VT ablations. This cohort was characterized by severe LV systolic dysfunction (mean left ventricular ejection fraction 30.3%, 67% with known ischemic cardiomyopathy) with moderately severe heart failure (median NYHA functional class II); 45% of patients underwent ischemic or coronary evaluations via coronary angiography (10%), noninvasive myocardial perfusion (26%), or both (9%). The yield of these evaluations was low: No acute coronary occlusions were identified. There was no association between ischemic evaluation and acute ablation outcomes or mortality during follow-up. Similarly, in a secondary analysis, the yield of ischemic or coronary evaluations in patients with monomorphic VT storm and known coronary disease (regardless of ablation status) was found to be low. CONCLUSIONS Ischemic evaluations in patients with monomorphic VT storm without ACS may not improve procedural outcomes or mortality after ablation.
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Affiliation(s)
- Feras Alkhalaileh
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Oussama M Wazni
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Alan Kiang
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Joshua Parker
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Stephen Ellis
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Mohamed Kanj
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Medhat Farwati
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Venugopal Menon
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Thomas Callahan
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Bryan Baranowski
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Shady Nakhla
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Tyler Taigen
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Pasquale Santangeli
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Tariq Kewan
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Daniel Cantillon
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jakub Sroubek
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - John Rickard
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Mohammad Zmaili
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Mandeep Bhargava
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Walid I Saliba
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Hiroshi Nakagawa
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ayman A Hussein
- Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, USA.
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11
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Kaya E, Otten M, Theuns DAMJ, Veen K, Yap SC, Schinkel AFL, Constantinescu AA, Michels M, Manintveld OC, Szili-Torok T, Caliskan K. Long-Term Outcome of ICD Therapy in Patients With Noncompaction Cardiomyopathy Compared With DCM and HCM. JACC Clin Electrophysiol 2023; 9:1368-1378. [PMID: 37141904 DOI: 10.1016/j.jacep.2023.01.011] [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: 06/03/2022] [Revised: 01/12/2023] [Accepted: 01/18/2023] [Indexed: 05/06/2023]
Abstract
BACKGROUND Implantable cardioverter-defibrillators (ICDs) are frequently used for primary and secondary prevention in patients with cardiomyopathies due to different etiologies. However, long-term outcome studies in patients with noncompaction cardiomyopathy (NCCM) are scarce. OBJECTIVES This study summarizes the long-term outcome of ICD therapy in patients with NCCM compared with those with dilated cardiomyopathy (DCM) or hypertrophic cardiomyopathy (HCM). METHODS Prospective data from our single-center ICD registry were used to analyze the ICD interventions and survival in patients with NCCM (n = 68) compared with patients with DCM (n = 458) and patients with HCM (n = 158) from January 2005 to January 2018. RESULTS This NCCM population with an ICD for primary prevention comprised 56 (82%) patients with a median age of 43 years and 52% males, compared with 85% in patients with DCM and 79% in patients with HCM (P = 0.20). During a median follow-up of 5 years (IQR: 2.0-6.9 years), appropriate and inappropriate ICD interventions were not significantly different. Nonsustained ventricular tachycardia during Holter monitoring in patients with NCCM was the only significant risk factor for appropriate ICD therapy in patients with NCCM, with a HR of 5.29 (95% CI: 1.12-24.96). The long-term survival was significantly better in the univariable analysis in the NCCM group. However, there was no difference in multivariable Cox regression analyses between the cardiomyopathy groups. CONCLUSIONS At 5 years of follow-up, the rate of appropriate and inappropriate ICD interventions in NCCM was comparable to that in DCM or HCM. In multivariable analysis, no differences in survival were found between the cardiomyopathy groups.
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Affiliation(s)
- Emrah Kaya
- Department of Cardiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands; Department of Cardiology, St. Antonius Hospital Nieuwegein, the Netherlands
| | - Martijn Otten
- Department of Cardiology, Amsterdam University Medical Center, the Netherlands
| | - Dominic A M J Theuns
- Department of Cardiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Kevin Veen
- Department of Cardio-Thoracic Surgery, Erasmus Medical Center, University Medical Center Rotterdam, the Netherlands
| | - Sing-Chien Yap
- Department of Cardiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Arend F L Schinkel
- Department of Cardiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Alina A Constantinescu
- Department of Cardiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Michelle Michels
- Department of Cardiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Olivier C Manintveld
- Department of Cardiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Tamas Szili-Torok
- Department of Cardiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Kadir Caliskan
- Department of Cardiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands.
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12
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Zeng B, Zhang X, Schimpf R, Powers A, Glikson M, Antzelevitch C, Hu D, Barajas-Martinez H. Functional identification of hot-spot mutations in cardiac calcium channel genes associated with the J wave syndromes. Philos Trans R Soc Lond B Biol Sci 2023; 378:20220286. [PMID: 37122210 PMCID: PMC10150203 DOI: 10.1098/rstb.2022.0286] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 03/22/2023] [Indexed: 05/02/2023] Open
Abstract
J wave syndrome (JWS) is an inherited cardiac channelopathy associated with malignant ventricular arrhythmias and sudden cardiac death (SCD), which comprises early repolarization syndrome and Brugada syndrome. Here, we explore the association between variants in the L-type calcium channel gene subunits, α1C (CACNA1C) and β2b (CACNB2b), and the JWS phenotype. Using next-generation genetic sequencing of 402 JWS probands and their family members, we identified a CACNA1C-G37R (p.Gly37Arg) mutation in five individuals in four families, two of which had a family history of SCD as well as a CACNB2b-S143F (p.Ser143Phe) mutation in seven individuals in three families, two of which had a family history of SCD. The variants were located in exon 2 in CACNA1C and exon 5 in CACNB2b; both were in highly conserved amino acid residues. Whole-cell patch-clamp results showed that compared with the wild-type group, calcium current density of CACNB2b-S143F and CACNA1C-G37R were significantly lower displaying a dominant-negative effect. Our findings provide further support for the hypothesis that variants in CACNA1C and CACNB2b are associated with JWS. The results suggest that mutations in these two genes lead to loss-of-function of the cardiac calcium channel current warranting their inclusion in genetic screening protocols. This article is part of the theme issue 'The heartbeat: its molecular basis and physiological mechanisms'.
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Affiliation(s)
- Bin Zeng
- Department of Cardiology and Cardiovascular Research Institute, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, People's Republic of China
- Hubei Key Laboratory of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, People's Republic of China
| | - Xiang Zhang
- Department of Cardiology and Cardiovascular Research Institute, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, People's Republic of China
- Hubei Key Laboratory of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, People's Republic of China
| | - Rainer Schimpf
- Cardiology Practice Clinic, Ludwig-Guttmann-Str. 11, Ludwigshafen, Ludwigshafen-Neustadt, 67071, Germany
| | - Andrew Powers
- Department of Biology, University at Albany, State University of New York, Albany, NY, 12222, USA
| | - Michael Glikson
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center and Hebrew University Faculty of Medicine, Jerusalem, 91031, Israel
| | - Charles Antzelevitch
- Lankenau Institute for Medical Research, and Lankenau Heart Institute, Wynnwood, Pennsylvania, PA, 19096, USA
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Dan Hu
- Department of Cardiology and Cardiovascular Research Institute, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, People's Republic of China
- Hubei Key Laboratory of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, People's Republic of China
| | - Hector Barajas-Martinez
- Department of Cardiology and Cardiovascular Research Institute, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, People's Republic of China
- Hubei Key Laboratory of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, People's Republic of China
- Lankenau Institute for Medical Research, and Lankenau Heart Institute, Wynnwood, Pennsylvania, PA, 19096, USA
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA
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13
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Théry G, Faroux L, Boyer F, Nazeyrollas P, Chabert JP, Metz D, Lesaffre F. Relationship between Exercise Test Parameters, Device-Delivered Electric Shock and Adverse Clinical Events in Patients with an Implantable Cardioverter Defibrillator for Primary Prevention. J Pers Med 2023; 13:589. [PMID: 37108975 PMCID: PMC10143101 DOI: 10.3390/jpm13040589] [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: 03/01/2023] [Revised: 03/24/2023] [Accepted: 03/25/2023] [Indexed: 03/30/2023] Open
Abstract
(1) Background: Receiving the first internal electric shock is a turning point for patients with an implantable cardioverter defibrillator (ICD) for primary prevention. However, no study has investigated whether patients who receive a first device-delivered electric shock have a poor prognosis even at the time of ICD implantation. (2) Methods: We retrospectively identified 55 patients with ischemic (n = 31) or dilated (n = 24) cardiomyopathy who underwent ICD implantation for primary prevention with exercise test at the time of implantation. We recorded baseline characteristics, exercise test parameters, and clinical events. (3) Results: After a median follow-up of 5 years, we observed an association between an appropriate device-delivered electric shock, the occurrence of death or heart transplant, and the occurrence of the composite endpoint. There was also a significant relation between a VE/VCO2 slope >35 and the occurrence of the composite endpoint. Conversely, there was no significant association between negative outcomes on the exercise test and the occurrence of a device-delivered electric shock. (4) Conclusions: The exercise test performed at the time of ICD implantation do not predict the occurrence of device-delivered electric shock. The exercise test and the first electric shock are two independent markers of poor prognosis.
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Affiliation(s)
- Guillaume Théry
- Department of Cardiology, Reims University Hospital, 51100 Reims, France
- Intensive Care Unit, Reims University Hospital, 51100 Reims, France
| | - Laurent Faroux
- Department of Cardiology, Reims University Hospital, 51100 Reims, France
| | - Fanny Boyer
- Department of Cardiology, Reims University Hospital, 51100 Reims, France
| | - Pierre Nazeyrollas
- Department of Cardiology, Reims University Hospital, 51100 Reims, France
| | | | - Damien Metz
- Department of Cardiology, Reims University Hospital, 51100 Reims, France
| | - François Lesaffre
- Department of Cardiology, Reims University Hospital, 51100 Reims, France
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14
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Romain J, Marie CL, Daniel J, Stéphane T. Bolus intravenous potassium chloride for recurrent ventricular fibrillation. Am J Emerg Med 2023:S0735-6757(23)00073-6. [PMID: 36797168 DOI: 10.1016/j.ajem.2023.01.055] [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: 01/02/2023] [Revised: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 02/11/2023] Open
Abstract
We report the feasibility and recommend the potential efficacy of a bolus intravenous potassium chloride during out-of-hospital cardiac arrest with recurrent ventricular fibrillation following an acute coronary syndrome in a man in his 40's.
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Affiliation(s)
- Jouffroy Romain
- Paris Fire Brigade, Emergency Medicine department, 1 place Jules Renard, 75017 Paris, France.
| | - Couetoux Louis Marie
- Paris Fire Brigade, Emergency Medicine department, 1 place Jules Renard, 75017 Paris, France
| | - Jost Daniel
- Paris Fire Brigade, Emergency Medicine department, 1 place Jules Renard, 75017 Paris, France
| | - Travers Stéphane
- Paris Fire Brigade, Emergency Medicine department, 1 place Jules Renard, 75017 Paris, France
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15
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Kuwabara Y, Howard-Quijano K, Salavatian S, Yamaguchi T, Saba S, Mahajan A. Thoracic dorsal root ganglion stimulation reduces acute myocardial ischemia induced ventricular arrhythmias. Front Neurosci 2023; 17:1091230. [PMID: 36793544 PMCID: PMC9922704 DOI: 10.3389/fnins.2023.1091230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/09/2023] [Indexed: 02/03/2023] Open
Abstract
Background Dorsal root ganglion stimulation (DRGS) may serve as a novel neuromodulation strategy to reduce cardiac sympathoexcitation and ventricular excitability. Objective In this pre-clinical study, we investigated the effectiveness of DRGS on reducing ventricular arrhythmias and modulating cardiac sympathetic hyperactivity caused by myocardial ischemia. Methods Twenty-three Yorkshire pigs were randomized to two groups, which was control LAD ischemia-reperfusion (CONTROL) or LAD ischemia-reperfusion + DRGS (DRGS) group. In the DRGS group (n = 10), high-frequency stimulation (1 kHz) at the second thoracic level (T2) was initiated 30 min before ischemia and continued throughout 1 h of ischemia and 2 h of reperfusion. Cardiac electrophysiological mapping and Ventricular Arrhythmia Score (VAS) were assessed, along with evaluation of cFos expression and apoptosis in the T2 spinal cord and DRG. Results DRGS decreased the magnitude of activation recovery interval (ARI) shortening in the ischemic region (CONTROL: -201 ± 9.8 ms, DRGS: -170 ± 9.4 ms, p = 0.0373) and decreased global dispersion of repolarization (DOR) at 30 min of myocardial ischemia (CONTROL: 9546 ± 763 ms2, DRGS: 6491 ± 636 ms2, p = 0.0076). DRGS also decreased ventricular arrhythmias (VAS-CONTROL: 8.9 ± 1.1, DRGS: 6.3 ± 1.0, p = 0.038). Immunohistochemistry studies showed that DRGS decreased % cFos with NeuN expression in the T2 spinal cord (p = 0.048) and the number of apoptotic cells in the DRG (p = 0.0084). Conclusion DRGS reduced the burden of myocardial ischemia-induced cardiac sympathoexcitation and has a potential to be a novel treatment option to reduce arrhythmogenesis.
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Affiliation(s)
- Yuki Kuwabara
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Kimberly Howard-Quijano
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Siamak Salavatian
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA, United States
- Division of Cardiology, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Tomoki Yamaguchi
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Samir Saba
- Division of Cardiology, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Aman Mahajan
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
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16
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Tóth P, Komlósi F, Vámosi P, Arnóth B, Szegedi N, Salló Z, Piros K, Perge P, Osztheimer I, Ábrahám P, Széplaki G, Merkely B, Gellér L, Nagy KV. Sex differences in one-year recurrence and all-cause mortality following catheter ablation of ventricular tachycardia in structural heart disease. Front Cardiovasc Med 2022; 9:1061471. [PMID: 36561769 PMCID: PMC9763270 DOI: 10.3389/fcvm.2022.1061471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
Aims We aimed to establish sex-specific predictors for 1-year VT recurrence and 1-year all-cause mortality in patients with structural heart disease undergoing catheter ablation. Methods We analyzed data of 299 patients recorded in our structured registry. These included medical history, echocardiography parameters, laboratory results, VT properties, procedural data. Results Out of the 299 patients, 34 (11%) were female. No significant difference was found between women and men in terms of VT recurrence (p = 0.74) or mortality (p = 0.07). In females, severe mitral regurgitation (MR), tricuspid regurgitation (TR), presentation with incessant VT, and preprocedural electrical storm (ES) were associated with increased risk of VT recurrence. Diabetes, implanted CRT, VT with hemodynamic instability, ES and advanced MR were the risk factors of mortality in women. ACEi/ARB use predicted a favorable outcome in both endpoints among females. In men, independent predictors of VT recurrence were the composite parameter of ES and multiple ICD therapies, presentation with incessant VT, severe MR, while independent predictors of mortality were age, LVEF, creatinine and previously implanted CRT. Conclusion According to our investigation, there are pronounced sex differences in predictors of recurrence and mortality following VT ablation.
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Affiliation(s)
- Patrik Tóth
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Ferenc Komlósi
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Péter Vámosi
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Bence Arnóth
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary,Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Nándor Szegedi
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Zoltán Salló
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Katalin Piros
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Péter Perge
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | | | - Pál Ábrahám
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Gábor Széplaki
- Mater Private Hospital, Dublin, Ireland,Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Béla Merkely
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - László Gellér
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Klaudia Vivien Nagy
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary,*Correspondence: Klaudia Vivien Nagy
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Long-term Outcomes of Catheter Ablation for Ventricular Arrhythmias in Post-Myocarditis Patients: Insights from a Meta-Analysis of Current Data. SN COMPREHENSIVE CLINICAL MEDICINE 2022; 4:62. [PMID: 35224448 PMCID: PMC8857528 DOI: 10.1007/s42399-022-01137-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 02/07/2022] [Indexed: 11/17/2022]
Abstract
Background In the past decade, catheter ablation (CA) has become a rapidly expanding treatment option for ventricular tachycardia (VT); however it is not commonly utilised for patients with post-myocarditis VT. We aimed to systematically review up-to-date evidence regarding feasibility, effectiveness, and safety of CA, with a specific focus on long-term relapse rate and procedural complications. Methods A structured electronic database search (PubMed, Embase, Cochrane) of the scientific literature was performed according to PRISMA guidelines for studies describing outcomes at up to 7.3 years after CA. The primary outcome measured was VT recurrence post-ablation. Procedural success was defined as freedom of ventricular arrhythmias (at the end of follow-up after an ablation procedure). The secondary outcome was significant procedural complications which included procedural death, stroke, cardiac tamponade, acute myocardial infarction, major vascular complications, and major bleeding, assessed on a study-by-study basis. Results A total of 186 patients were included in analysis with most patients (88%) being male. Over the follow-up period, there was a 18% relapse rate (n = 34) (confidence interval (CI); 0.12–0.24, I2≈0, p = 0.77) with the majority of patients remaining VT free for the duration of follow-up. The overall procedural complication rate was 3.0% (n = 7) (CI; 0.01–0.07, I2≈0, p = 0.44), and of note, there were no peri-procedural deaths or heart transplant surgeries reported. However, a single study reported a mortality of 10% (n = 2) during the follow-up period. Conclusions CA is an effective and durable long-term therapeutic strategy for post-myocarditis VT patients with limited relapse rate and very low complication rates based on these non-randomised data. Larger randomised-controlled trials with standardised treatment and long follow-up are required to compare CA versus conventional treatment in the post-acute myocardial phase. Supplementary Information The online version contains supplementary material available at 10.1007/s42399-022-01137-w.
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18
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Next-generation sequencing of postmortem molecular markers to support for medicolegal autopsy. FORENSIC SCIENCE INTERNATIONAL: REPORTS 2022. [DOI: 10.1016/j.fsir.2022.100300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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19
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Interventions in the Diagnosis and Adoption of Pacemaker Therapy in Sinus Node Dysfunction Patients: Results from the IMPROVE Brady study. Indian Heart J 2022; 74:351-356. [PMID: 36130635 PMCID: PMC9647663 DOI: 10.1016/j.ihj.2022.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022] Open
Abstract
Aims IMPROVE Brady assessed whether a process improvement intervention could increase adoption of guideline-based therapy in sinus node dysfunction (SND) patients. Methods /Results: IMPROVE Brady was a sequential, prospective, quality improvement initiative conducted in India and Bangladesh. Patients with symptomatic bradycardia were enrolled. In Phase I, physicians assessed and treated patients per standard care. Phase II began after implementing educational materials for physicians and patients. Primary objectives were to evaluate the impact of the intervention on SND diagnosis and pacemaker (PPM) implant. SF-12 quality of life (QoL) and Zarit burden surveys were collected pre- and post-PPM implant. A total of 978 patients were enrolled (57.7 ± 14.8 years, 75% male), 508 in Phase I and 470 in Phase II. The diagnosis of SND and implantation of PPM increased significantly from Phase I to Phase II (72% vs. 87%, P < 0.001 and 17% vs. 32%, P < 0.001, respectively). Pacemaker implantation was not feasible in 41% of patients due to insurance/cost barriers which was unaltered by the intervention. Both patient QoL and caregiver burden improved at 6-months post-PPM implant (P < 0.001). Conclusions A process improvement initiative conducted at centers across India and Bangladesh significantly increased the diagnosis of SND and subsequent treatment with PPM therapy despite the socio-economic constraints.
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20
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Lindekilde N, Skov O, Skovbakke SJ, Johansen JB, Nielsen JC, Pedersen SS. Anxiety and depression as risk factors for ICD shocks and mortality in patients with an implantable cardioverter defibrillator - A systematic review. Gen Hosp Psychiatry 2022; 78:96-107. [PMID: 35933929 DOI: 10.1016/j.genhosppsych.2022.07.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 07/14/2022] [Accepted: 07/19/2022] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To examine associations between baseline anxiety and depression and occurrence of ICD shocks and risk of mortality in patients with an implantable cardioverter defibrillator (ICD). METHOD We systematically searched EMBASE, PubMed, PsycINFO, and CINAHL for eligible studies fulfilling the predefined criteria. RESULTS We included 37 studies based on 25 different cohorts following 35,003 participants for up to seven years. We observed no association between baseline anxiety nor depression and the occurrence of ICD shocks. More than half of the identified studies (respectively 56% and 60%) indicated a significant association between baseline anxiety or depression and increased risk of mortality (anxiety: n = 5, ranging from Hazard ratios (HR):1.02 [Confidence intervals (CI) 95% 1.00-1.03] to HR:3.45 [CI 95% 1.57-7.60]; depression: n = 6, ranging from HR:1.03 [CI 95% 1.00-1.06] to HR:2.10 [CI 95% 1.44-3.05]). We found a significant association between high methodological quality of the primary study and the detection of a significant association (p < 0.01). CONCLUSIONS Baseline anxiety and depression are associated with increased risk of mortality in patients with an ICD, but not with occurrence of ICD shocks. Inclusion of baseline anxiety and depression in risk stratification of mortality may be warranted.
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Affiliation(s)
- Nanna Lindekilde
- Department of Psychology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
| | - Ole Skov
- Department of Psychology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Søren J Skovbakke
- Department of Psychology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Jens B Johansen
- Department of Cardiology, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
| | - Jens C Nielsen
- Department of Cardiology, Aarhus University Hospital, Brendstrupgårdsvej, 8200 Aarhus, Denmark & Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200 Aarhus N, Denmark
| | - Susanne S Pedersen
- Department of Psychology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark; Department of Cardiology, Odense University Hospital, J. B. Winsløws Vej 4, 5000 Odense C, Denmark
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21
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Trends in Sudden Death Following Admission for Acute Heart Failure. Am J Cardiol 2022; 178:89-96. [PMID: 35831216 DOI: 10.1016/j.amjcard.2022.05.024] [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: 02/10/2022] [Revised: 05/07/2022] [Accepted: 05/10/2022] [Indexed: 11/23/2022]
Abstract
Few studies on sudden death (SD) after admission for acute heart failure (AHF) have been published. A total of 1,664 patients with AHF were enrolled in this study, and 1,261 patients who were successfully followed up during the first year after admission were analyzed. The primary end point was SD, which was defined as out-of-hospital cardiac arrest. The median follow-up period from admission was 1,008 days (range 408 to 2,132). In total, 505 patients (40.0%) died: 341 (67.5%) died of cardiovascular causes and 55 (10.9%) died of other causes. Of the 505 who died, 80 (15.8%) experienced SD. The proportion of SDs increased in the later phases of follow-up (0 to 1 year, 10.3%; 1 to 2 years, 18.0%; 2 to 5 years, 18.8%; ≥5 years, 28.2%; p <0.001). A multivariate logistic regression model showed that younger age was independently associated with SD (60 to 69 years: odds ratio 2.249, 95% confidence interval 1.060 to 4.722; <60 years: odds ratio 3.863, 95% confidence interval 1.676 to 8.905). Kaplan-Meier curves showed that the incidence of cardiovascular death was highest during the acute phase, whereas the incidence of SD increased gradually over the entire follow-up period. In conclusion, the incidence of SD was surprisingly high in patients with AHF, accounting for 16% of long-term mortality. The proportion of SDs increased during the very late follow-up phases.
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22
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Tayal U, Gregson J, Buchan R, Whiffin N, Halliday BP, Lota A, Roberts AM, Baksi AJ, Voges I, Jarman JWE, Baruah R, Frenneaux M, Cleland JGF, Barton P, Pennell DJ, Ware JS, Cook SA, Prasad SK. Moderate excess alcohol consumption and adverse cardiac remodelling in dilated cardiomyopathy. Heart 2022; 108:619-625. [PMID: 34380661 PMCID: PMC8961767 DOI: 10.1136/heartjnl-2021-319418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/12/2021] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVE The effect of moderate excess alcohol consumption is widely debated and has not been well defined in dilated cardiomyopathy (DCM). There is need for a greater evidence base to help advise patients. We sought to evaluate the effect of moderate excess alcohol consumption on cardiovascular structure, function and outcomes in DCM. METHODS Prospective longitudinal observational cohort study. Patients with DCM (n=604) were evaluated for a history of moderate excess alcohol consumption (UK government guidelines; >14 units/week for women, >21 units/week for men) at cohort enrolment, had cardiovascular magnetic resonance and were followed up for the composite endpoint of cardiovascular death, heart failure and arrhythmic events. Patients meeting criteria for alcoholic cardiomyopathy were not recruited. RESULTS DCM patients with a history of moderate excess alcohol consumption (n=98, 16%) had lower biventricular function and increased chamber dilatation of the left ventricle, right ventricle and left atrium, as well as increased left ventricular hypertrophy compared with patients without moderate alcohol consumption. They were more likely to be male (alcohol excess group: n=92, 94% vs n=306, 61%, p=<0.001). After adjustment for biological sex, moderate excess alcohol was not associated with adverse cardiac structure. There was no difference in midwall myocardial fibrosis between groups. Prior moderate excess alcohol consumption did not affect prognosis (HR 1.29, 95% CI 0.73 to 2.26, p=0.38) during median follow-up of 3.9 years. CONCLUSION DCM patients with moderate excess alcohol consumption have adverse cardiac structure and function at presentation, but this is largely due to biological sex. Alcohol may contribute to sex-specific phenotypic differences in DCM. These findings help to inform lifestyle discussions for patients with DCM.
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Affiliation(s)
- Upasana Tayal
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - John Gregson
- London School of Hygiene and Tropical Medicine, London, UK
| | - Rachel Buchan
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Nicola Whiffin
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Brian P Halliday
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Amrit Lota
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Angharad M Roberts
- Medical Research Council Clinical Sciences Centre, Imperial College London, London, UK
| | - A John Baksi
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | | | - Julian W E Jarman
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | | | | | - John G F Cleland
- National Heart and Lung Institute, Imperial College London, London, UK
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Paul Barton
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Dudley J Pennell
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - James S Ware
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
- Medical Research Council Clinical Sciences Centre, Imperial College London, London, UK
| | - Stuart A Cook
- Medical Research Council Clinical Sciences Centre, Imperial College London, London, UK
- Duke NUS, Singapore
| | - Sanjay K Prasad
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
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23
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Sudden Cardiac Death Risk over Time in HCM Patients with Implantable Cardioverter-Defibrillator. J Clin Med 2022; 11:jcm11061633. [PMID: 35329959 PMCID: PMC8954740 DOI: 10.3390/jcm11061633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/03/2022] [Accepted: 03/11/2022] [Indexed: 12/07/2022] Open
Abstract
Background: In patients with HCM at high risk of SCD, an ICD should be considered as a standard of care. Current risk approximation algorithms recommended by ESC 2014 criteria indicate that SCD risk is not stable. The aim of the study was to investigate how the calculated SCD risk in HCM patients with an ICD implanted in the past changed over time. Methods: We analyzed 64 HCM patients with ICD for primary prevention, referred for ICD re-implantation, and 32 HCM patients referred for a first-time ICD placement during the same period. The 5-year-SCD risk was assessed for suitable patients using the recommended ESC calculator. Results: The first-time group had a higher 5-year-SCD risk than those referred for ICD re-implantation: 7.50 (IQR 5.98−10.46) vs. 4.88 (IQR 3.42−7.25), p < 0.05. Out of the patients with an initial calculated risk below 4%, the risk increased in 22% of cases, reaching the 4−6% range. In 78% of patients, the risk remained stable and low. In 31% of patients with an initial calculated SCD risk ≥ 6%, the risk decreased over time to below 6%, and in 14% of the cases, below 4%. Conclusions: SCD risk in HCM patients is usually stable or gets lower. Our data suggest it is important to re-evaluate the risk profile for patients with HCM when ICD re-implantation is considered.
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Warming PE, Ågesen FN, Lynge TH, Jabbari R, Smits RL, van Valkengoed IG, Welten SJ, van der Heijden AA, Elders PJ, Blom MT, Jouven X, Schwartz PJ, Albert CM, Beulens JW, Rutters F, Tan HL, Empana JP, Tfelt-Hansen J. Harmonization of the definition of sudden cardiac death in longitudinal cohorts of the European Sudden Cardiac Arrest network - towards Prevention, Education, and New Effective Treatments (ESCAPE-NET) consortium. Am Heart J 2022; 245:117-125. [PMID: 34936862 DOI: 10.1016/j.ahj.2021.12.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 11/16/2021] [Accepted: 12/10/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND The burden of sudden cardiac death (SCD) in the general population is substantial and SCD frequently occurs among people with few or no known risk factors for cardiac disease. Reported incidences of SCD vary due to differences in definitions and methodology between cohorts. This study aimed to develop a method for adjudicating SCD cases in research settings and to describe uniform case definitions of SCD in an international consortium harmonizing multiple longitudinal study cohorts. METHODS The harmonized SCD definitions include both case definitions using data from multiple sources (eg, autopsy reports, medical history, eyewitnesses) as well as a method using only information from registers (eg, cause of death registers, ICD-10 codes). Validation of the register-based method was done within the consortium using the multiple sources definition as gold standard and presenting sensitivity, specificity, accuracy and positive predictive value. RESULTS Consensus definitions of "definite," "possible" and "probable" SCD for longitudinal study cohorts were reached. The definitions are based on a stratified approach to reflect the level of certainty of diagnosis and degree of information. The definitions can be applied to both multisource and register-based methods. Validation of the method using register-information in a cohort comprising 1335 cases yielded a sensitivity of 74%, specificity of 88%, accuracy of 86%, and positive predictive value of 54%. CONCLUSIONS This study demonstrated that a harmonization of SCD classification across different methodological approaches is feasible. The developed classification can be used to study SCD in longitudinal cohorts and to merge cohorts with different levels of information.
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25
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Guo Q, Lai Y, Chu J, Chen X, Gao M, Sang C, Dong J, Pu J, Ma C. LRP6 Polymorphisms Is Associated With Sudden Cardiac Death in Patients With Chronic Heart Failure in the Chinese Han Population. Front Cardiovasc Med 2022; 8:815595. [PMID: 35187114 PMCID: PMC8854291 DOI: 10.3389/fcvm.2021.815595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 12/15/2021] [Indexed: 11/13/2022] Open
Abstract
Low-density lipoprotein receptor-related protein 6 (LRP6) plays a critical role in cardiovascular homeostasis. The deficiency of LRP6 is associated with a high risk of arrhythmias. However, the association between genetic variations of LRP6 and sudden cardiac death (SCD) remains unknown. This study aims to explore the association between common variants of LRP6 and the prognosis of chronic heart failure (CHF) patients. From July 2005 to December 2009, patients with CHF were enrolled from 10 hospitals in China. The single-nucleotide polymorphism (SNP) rs2302684 was selected for the evaluation of the effect of LRP6 polymorphisms on the survival in patients with CHF. A total of 1,437 patients with CHF were finally included for the analysis. During a median follow-up of 61 months (range 0.4–129 months), a total of 546 (38.0%) patients died, including 201 (36.8%) cases with SCD and 345 (63.2%) cases with non-SCD. Patients carrying A allele of rs2302684 had an increased risk of all-cause death (adjusted HR 1.452, 95% CI 1.189–1.706; P < 0.001) and SCD (adjusted HR 1.783, 95% CI 1.337–2.378; P < 0.001). Therefore, the SNP rs2302684 T>A in LRP6 indicated higher risks of all-cause death and SCD in patients with CHF. LRP6 could be added as a novel predictor of SCD and might be a potential therapeutic target in the prevention of SCD in the CHF population.
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Affiliation(s)
- Qi Guo
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yiwei Lai
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jianmin Chu
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuhua Chen
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mingyang Gao
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Caihua Sang
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jianzeng Dong
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jielin Pu
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of Cardiology, Shanghai East Hospital, Tongji University, Shanghai, China
- *Correspondence: Jielin Pu
| | - Changsheng Ma
- Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
- Changsheng Ma
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Abstract
Cancer and cardiovascular diseases (CVD) are among the leading causes of death worldwide. In response to the growing population of cancer patients and survivors with CVD, the sub-specialty of cardio-oncology has been developed to better optimise their care. Palpitations are one of the most common presenting complaints seen in the emergency room or by the primary care provider or cardiologist. Palpitations are defined as a rapid pulsation or abnormally rapid or irregular beating of the heart and present a complex diagnostic entity with no evidence-based guidelines currently available. Palpitations are a frequent occurrence in people with cancer, and investigations and treatment are comparable to that in the general population although there are some nuances. Cancer patients are at a higher risk of arrhythmogenic causes of palpitations and non-arrhythmogenic causes of palpitations. This review will appraise the literature with regards to the development and management of palpitations in the cancer patient.
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Affiliation(s)
- Hani Essa
- Liverpool Centre for Cardiovascular Science, University of Liverpool, Liverpool Heart and Chest Hospital Liverpool, UK
| | - Gregory Yh Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool, Liverpool Heart and Chest Hospital Liverpool, UK.,Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University Aalborg, Denmark
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27
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Kim WC, Lemire E, Nosib S, Nosib S. A Novel Frameshift Mutation, KCNH2 [p.Asp896ArgfsX79], Leading to Malignant Ventricular Arrhythmia, Identified After Treatment of Gastrointestinal Bleeding. CJC Open 2021; 3:1383-1387. [PMID: 34901807 PMCID: PMC8640589 DOI: 10.1016/j.cjco.2021.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/01/2021] [Indexed: 11/13/2022] Open
Abstract
A novel frameshift mutation in the KCNH2 gene for long QT syndrome type 2 (LQTS2) was identified after torsades des pointes ventricular tachycardia in a 49-year-old patient managed with octreotide and nadolol for an acute variceal bleed. In spite of removal of offending medications, and correction of underlying electrolyte abnormalities, the patient’s QT interval remained prolonged—at 521 ms—raising the suspicion of an underlying channelopathy. Genetic studies confirmed heterozygosity for a novel frameshift mutation for the KCNH2 gene, D896Rfs X79. We explore the pathogenicity and clinical impact of this variant mutation.
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Affiliation(s)
- Wan Cheol Kim
- Department of Medicine, University of Dalhousie, Halifax, Nova Scotia, Canada
| | - Edmond Lemire
- Division of Medical Genetics, University of Saskatchewan, Royal University Hospital, Saskatoon, Saskatchewan, Canada
| | - Siddarth Nosib
- College of Medicine, University of Central Lancashire, Preston, United Kingdom
| | - Shravankumar Nosib
- Department of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, Saskatchewan, Canada
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Lewandowski M. A Review of the Commercially Available ECG Detection and Transmission Systems-The Fuzzy Logic Approach in the Prevention of Sudden Cardiac Arrest. MICROMACHINES 2021; 12:1489. [PMID: 34945338 PMCID: PMC8705604 DOI: 10.3390/mi12121489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 12/24/2022]
Abstract
Sudden cardiac death (SCD) constitutes a major clinical and public health problem, whose death burden is comparable to the current worldwide pandemic. This comprehensive review encompasses the following topics: available rescue systems, wearable electrocardiograms (ECG), detection and transmission technology, and a newly developed fuzzy logic algorithm (FA) for heart rhythm classification which is state-of-the art in the field of SCD prevention. Project "PROTECTOR", the Polish Rapid Transtelephonic ECG to Obtain Resuscitation for development of a rapid rescue system for patients at risk of sudden cardiac arrest (SCA), is presented. If a lethal arrhythmia is detected on the basis of FA, the system produces an alarm signal audible for bystanders and transmits the alarm message along with location to the emergency medical center. Phone guided resuscitation can be started immediately because an automated external defibrillator (AED) localization map is available. An automatic, very fast diagnosis is a unique feature of the PROTECTOR prototype. The rapid detection of SCA is based on a processor characterized by 100% sensitivity and 97.8% specificity (as measured in the pilot studies). An integrated circuit which implements FA has already been designed and a diagnosis is made within few seconds, which is extremely important in ischemic brain damage prophylaxis. This circuit could be implemented in smart implants (Sis).
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Affiliation(s)
- Michał Lewandowski
- 2nd Department of Arrhythmia, National Institute of Cardiology, 04-628 Warsaw, Poland
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29
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Abstract
The paper presents basic morphological criteria of the diagnosis of sudden cardiac death related to different diseases in young people. Attention is drawn to cardiomyopathies, channelopathies, connective tissue dysplasias, Marfan syndrome with cystic medial necrosis, sudden arrhythmic death. Initiating events in sudden cardiac death are discussed. Besides morphological manifestations, the paper dwells upon major genetic events and clinical presentation of the diseases. It is based on both existing publications and own data.
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Affiliation(s)
- L B Mitrofanova
- V.A. Almazov National Medical Research Center, St. Petersburg, Russia
| | - M G Rybakova
- I.P. Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
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30
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Zhou L, Wang X, Zhan X, Feng X, Wang N, Peng F, Wen Y, Wu X. Serum Chloride and Mortality in patients on continuous ambulatory peritoneal dialysis: A multi-center retrospective study. EClinicalMedicine 2021; 41:101133. [PMID: 34585124 PMCID: PMC8452795 DOI: 10.1016/j.eclinm.2021.101133] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Lower serum chloride is associated with a higher risk of mortality in the general population. However, the association has received little attention in peritoneal dialysis patients. The study aimed to examine the association between serum chloride and mortality in peritoneal dialysis patients. METHODS In this multicenter retrospective cohort study, 2376 Chinese incident patients on peritoneal dialysis between January 1, 2005, and March 31, 2020, were included. Patients were grouped according to quartiles of serum chloride at baseline. The associations of baseline serum chloride and cardiovascular mortality and all-cause mortality were evaluated using cause-specific hazards models. FINDINGS Of 2376 patients, the mean age was 45.9 (45.3,46.5) years, 50.1% of patients were men. The median serum chloride levels were 103.0 (99.0,106.9) mmol/L. During 9304.5 person-years of follow-up, 462 patients died, of which 235 deaths were caused by cardiovascular disease. The highest quartile group was associated with a higher risk of cardiovascular mortality (adjusted hazards ratio [HR], 2.95; 95% confidence interval [CI], 1.80 to 4.95) and all-cause mortality (adjusted HR, 2.03; 95% CI, 1.45 to 2.83) compared with the lowest quartile. The similar trend was also found when serum chloride levels were deal as continuous variable. INTERPRETATION Higher serum chloride at the initial of peritoneal dialysis was associated with a higher risk of cardiovascular mortality and all-cause mortality in patients on peritoneal dialysis. FUNDING This work was supported by Shanghai Municipal Health Commission (2019SY018).
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Affiliation(s)
- Lei Zhou
- Evergreen Tree Nephrology Association, Guangzhou, China
| | - Xiaoyang Wang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaojiang Zhan
- Department of Nephrology, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaoran Feng
- Department of Nephrology, Jiujiang No. 1 People's Hospital, Jiujiang, China
| | - Niansong Wang
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Clinical Research Center for Chronic Kidney Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Fenfen Peng
- Department of Nephrology, Zhujiang Hospital of Southern Medical University, Guangzhou, China
| | - Yueqiang Wen
- Department of Nephrology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xianfeng Wu
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Clinical Research Center for Chronic Kidney Disease, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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31
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Pooranachandran V, Nicolson W, Vali Z, Li X, Ng GA. Non-invasive markers for sudden cardiac death risk stratification in dilated cardiomyopathy. Heart 2021; 108:998-1004. [PMID: 34670824 DOI: 10.1136/heartjnl-2021-319971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/23/2021] [Indexed: 11/03/2022] Open
Abstract
Dilated cardiomyopathy (DCM) is a common yet challenging cardiac disease. Great strides have been made in improving DCM prognosis due to heart failure but sudden cardiac death (SCD) due to ventricular arrhythmias remains significant and challenging to predict. High-risk patients can be effectively managed with implantable cardioverter defibrillators (ICDs) but because identification of what is high risk is very limited, many patients unnecessarily experience the morbidity associated with an ICD implant and many others are not identified and have preventable mortality. Current guidelines recommend use of left ventricular ejection fraction and New York Heart Association class as the main markers of risk stratification to identify patients who would be at higher risk of SCD. However, when analysing the data from the trials that these recommendations are based on, the number of patients in whom an ICD delivers appropriate therapy is modest. In order to improve the effectiveness of therapy with an ICD, the patients who are most likely to benefit need to be identified. This review article presents the evidence behind current guideline-directed SCD risk markers and then explores new potential imaging, electrophysiological and genetic risk markers for SCD in DCM.
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Affiliation(s)
- Vivetha Pooranachandran
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK.,NIHR Leicester Biomedical Research Centre, Leicester, UK
| | - Will Nicolson
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK.,Department of Cardiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Zakariyya Vali
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK.,Department of Cardiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Xin Li
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK.,School of Engineering, University of Leicester College of Science and Engineering, Leicester, UK
| | - G Andre Ng
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK .,NIHR Leicester Biomedical Research Centre, Leicester, UK.,Department of Cardiology, University Hospitals of Leicester NHS Trust, Leicester, UK
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32
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Wess G. Screening for dilated cardiomyopathy in dogs. J Vet Cardiol 2021; 40:51-68. [PMID: 34732313 DOI: 10.1016/j.jvc.2021.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 09/16/2021] [Accepted: 09/22/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Dilated cardiomyopathy (DCM) is the most common cardiac disease in large breed dogs. The disease can start with arrhythmias or with systolic dysfunction of the myocardium. OBJECTIVE To describe screening methods for DCM in various breeds and provide a new, modified staging system. RECOMMENDATIONS Screening for occult DCM should start at three years of age and use Holter monitoring in Boxers and Dobermans and might be useful also in other breeds. Single ventricular premature complexes (VPCs) can be detected in many healthy dogs, but healthy animals typically have <50 VPCs in 24 h and demonstrate minimal complexity most often occurring only as single ectopic beats. In general, >100 VPCs in 24 h was recommended as the cut-off value for establishing a diagnosis of DCM. However, there are breed-specific recommendations related to Holter recording diagnosis of DCM in Dobermans and Boxers. Yearly screening over the life of a dog is recommended, as a one-time screening is not sufficient to rule out the future development of DCM. Several echocardiographic methods such as M-mode derived measurements, the measurement of the left ventricular (LV) volume by Simpson's method of discs (SMOD), and E-point to septal separation (EPSS) are recommended for screening purposes. The value of additional tests such as cardiac biomarkers (troponin I and N-terminal pro-B-type natriuretic peptide) as well as a 5-min resting electrocardiogram (ECG) or newer echocardiographic methods such as strain measurements is discussed. CONCLUSION This review suggests some guidelines for screening for DCM in various breeds.
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Affiliation(s)
- G Wess
- Clinic of Small Animal Medicine, LMU University, Veterinärstrasse 13, Munich, 80539, Germany.
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33
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Bilmakhanbetova A, Zhakhina G, Beisenbay M, Marat D. Diagnostics of Torsade de Pointes in an oncohematology patient: A case report. Clin Case Rep 2021; 9:e04292. [PMID: 34194796 PMCID: PMC8223891 DOI: 10.1002/ccr3.4292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 04/12/2021] [Accepted: 04/27/2021] [Indexed: 11/11/2022] Open
Abstract
Complex heart rhythm disturbances due to cardiotoxicity may not be identified in time, and this may have an unfavorable outcome for patients. Holter monitoring can be a solution to prevent sudden cardiac death of oncohematology patients.
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Affiliation(s)
- Ainur Bilmakhanbetova
- Center of Radiation and Functional DiagnosticsNational Research Oncology CenterNur‐SultanKazakhstan
| | | | - Meruyert Beisenbay
- Center of Radiation and Functional DiagnosticsNational Research Oncology CenterNur‐SultanKazakhstan
| | - Daulet Marat
- Center Multidisciplinary TherapyNational Research Oncology CenterNur‐SultanKazakhstan
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34
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Galcerá-Jornet E, Consuegra-Sánchez L, Galcerá-Tomás J, Melgarejo-Moreno A, Gimeno-Blanes JR, Jaulent-Huertas L, Wasniewski S, de Gea-García J, Vicente-Gilabert M, Padilla-Serrano A. Association between new-onset right bundle branch block and primary or secondary ventricular fibrillation in ST-segment elevation myocardial infarction. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2021; 10:918-925. [PMID: 33993235 DOI: 10.1093/ehjacc/zuab026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 04/08/2021] [Indexed: 11/13/2022]
Abstract
AIMS New-onset right bundle branch block (RBBB) in myocardial infarction (MI) is often associated with ventricular fibrillation (VF) but the nature of this relationship has not been determined. METHODS AND RESULTS Between 1998 and 2014, among other data, incidence and duration of RBBB and VF occurrence were prospectively collected in 5301 patients with ST-segment elevation MI (STEMI) admitted to two University Hospitals in Murcia (Spain). Multinomial adjusted logistic regression analyses were used to examine the association between RBBB, attending to its duration, and VF according to its primary VF (PVF) or secondary VF (SVF) character. Among 284 (5.4%) patients with new-onset RBBB, 158 were transient and 126 permanent. VF occurred in 339 (6.4%) patients, 201 PVF and 138 SVF, documented within the first 2 h of symptoms-onset in 78% and 60%, respectively. New-onset RBBB was more frequent in PVF (11.4%) and SVF (20.3%), than in non-VF (4.7%). Transient RBBB incidence was higher in PVF (9.0%) and SVF (9.4) than in non-VF (2.6%), whereas permanent RBBB was higher in SVF (10.9%) than PVF (2.5%) and non-VF (2.1%). New-onset RBBB 1.83 [95% confidence interval (CI): 1.07-3.11] and new-onset transient RBBB 2.39 (95% CI: 1.32-4.32) were independently associated with PVF. New-onset 3.03 (95% CI: 1.83-5.02), transient 2.40 (95% CI: 1.27-4.55), and permanent 2.99 (95% CI: 1.52-5.86) RBBB were independently associated with SVF. CONCLUSION New-onset RBBB and VF in STEMI are independently associated and show particularities based on the duration of the conduction disturbance and/or the primary or secondary character of the arrhythmia.
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Affiliation(s)
- Emilio Galcerá-Jornet
- Department of Cardiology, Hospital de Denia, Av. Marina Alta, s/n, 03700 Dénia, Alicante, Spain
| | - Luciano Consuegra-Sánchez
- Department of Cardiology, Hospital Universitario Santa Lucía de Cartagena, Calle Minarete, s/n, 30202 Cartagena, Murcia, Spain
| | - José Galcerá-Tomás
- Coronary Care Unit, Department of Intensive Care Medicine, Hospital Clínico Universitario Virgen de la Arrixaca, Ctra. Madrid-Cartagena, s/n, 30120 El Palmar, Murcia, Spain
| | - Antonio Melgarejo-Moreno
- Coronary Care Unit, Department of Intensive Care Medicine, Hospital Universitario Santa Lucía de Cartagena, Calle Minarete, s/n, 30202 Cartagena, Murcia, Spain
| | - Juan Ramón Gimeno-Blanes
- Department of Cardiology, Hospital Clínico Universitario Virgen de la Arrixaca, Ctra. Madrid-Cartagena, s/n, 30120 El Palmar, Murcia, Spain
| | - Leticia Jaulent-Huertas
- Department of Cardiology, Hospital Universitario Santa Lucía de Cartagena, Calle Minarete, s/n, 30202 Cartagena, Murcia, Spain
| | - Samantha Wasniewski
- Department of Cardiology, Hospital Universitario Santa Lucía de Cartagena, Calle Minarete, s/n, 30202 Cartagena, Murcia, Spain
| | - José de Gea-García
- Coronary Care Unit, Department of Intensive Care Medicine, Hospital Clínico Universitario Virgen de la Arrixaca, Ctra. Madrid-Cartagena, s/n, 30120 El Palmar, Murcia, Spain
| | - Marta Vicente-Gilabert
- Emergency Department, Hospital Clínico Universitario Virgen de la Arrixaca, Ctra. Madrid-Cartagena, s/n, 30120 El Palmar, Murcia, Spain
| | - Antonio Padilla-Serrano
- Coronary Care Unit, Department of Intensive Care Medicine, Hospital Clínico Universitario Virgen de la Arrixaca, Ctra. Madrid-Cartagena, s/n, 30120 El Palmar, Murcia, Spain
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Shah NH, Ross SJ, Njapo SAN, Merritt J, Kolarich A, Kaufmann M, Miles WM, Winchester DE, Burkart TA, McKillop M. Better Than You Think—Appropriate Use of Implantable Cardioverter-Defibrillators at a Single Academic Center: A Retrospective Review. CARDIOVASCULAR INNOVATIONS AND APPLICATIONS 2021. [DOI: 10.15212/cvia.2021.0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: Implantable cardioverter-defibrillators (ICDs) can be life-saving devices, although they are expensive and may cause complications. In 2013, several professional societies published joint appropriate use criteria (AUC) assessing indications for ICD implantation. Data
evaluating the clinical application of AUC are limited. Previous registry-based studies estimated that 22.5% of primary prevention ICD implantations were “non-evidence-based” implantations. On the basis of AUC, we aimed to determine the prevalence of “rarely appropriate”
ICD implantation at our institution for comparison with previous estimates.Methods: We reviewed 286 patients who underwent ICD implantation between 2013 and 2016. Appropriateness of each ICD implantation was assessed by independent review and rated on the basis of AUC.Results:
Of 286 ICD implantations, two independent reviewers found that 89.5% and 89.2%, respectively, were appropriate, 5.6% and 7.3% may be appropriate, and 1.8% and 2.1% were rarely appropriate. No AUC indication was found for 3.5% and 3.4% of ICD implantations, respectively. Secondary prevention
ICD implantations were more likely rarely appropriate (2.6% vs. 1.2% and 3.6% vs. 1.1%) or unrated (6.0% vs. 1.2% and 2.7% vs. 0.6%). The reviewers found 3.5% and 3.4% of ICD implantations, respectively, were non-evidence-based implantations. The difference in rates between reviewers was not
statistically significant.Conclusion: Compared with prior reports, our prevalence of rarely appropriate ICD implantation was very low. The high appropriate use rate could be explained by the fact that AUC are based on current clinical practice. The AUC could benefit from additional
secondary prevention indications. Most importantly, clinical judgement and individualized care should determine which patients receive ICDs irrespective of guidelines or criteria.
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Affiliation(s)
- Nikhil H. Shah
- UF Division of Cardiovascular Medicine, 1600 SW Archer Rd, PO Box 100277, Gainesville, FL 32610, USA
| | - Steven J. Ross
- UF Division of Cardiovascular Medicine, 1600 SW Archer Rd, PO Box 100277, Gainesville, FL 32610, USA
| | - Steve A. Noutong Njapo
- UVA Division of Cardiovascular Medicine, PO Box 800158 1215 Lee St. Charlottesville, VA 22908-0158, USA
| | - Justin Merritt
- UF Division of Cardiovascular Medicine, 1600 SW Archer Rd, PO Box 100277, Gainesville, FL 32610, USA
| | - Andrew Kolarich
- The Johns Hopkins Hospital Department of Radiology, 601 N Caroline St, Baltimore, MD 21287, USA
| | - Michael Kaufmann
- The Heart Center, 930 Franklin Street SE, Huntsville, AL, 358015, USA
| | - William M. Miles
- UF Division of Cardiovascular Medicine, 1600 SW Archer Rd, PO Box 100277, Gainesville, FL 32610, USA
| | - David E. Winchester
- UF Division of Cardiovascular Medicine, 1600 SW Archer Rd, PO Box 100277, Gainesville, FL 32610, USA
| | - Thomas A. Burkart
- Intermountain Medical Center, 1380 E Medical Center Dr, Ste 1500, St. George, UT 847906, USA
| | - Matthew McKillop
- Carolina Cardiology Consultants, Prisma Health, 1005 Grove Road, Greenville, SC 29605, USA
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Wang M, Fan R, Gu T, Zou C, Zhang Z, Liu Z, Qiao C, Sun L, Gong M, Li H, Zhang H. Short-term outcomes of acute coronary involvement in type A aortic dissection without myocardial ischemia: a multiple center retrospective cohort study. J Cardiothorac Surg 2021; 16:107. [PMID: 33892753 PMCID: PMC8063355 DOI: 10.1186/s13019-021-01469-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 04/05/2021] [Indexed: 12/24/2022] Open
Abstract
Background To evaluate the early prognosis and management of acute coronary involvement (ACI) in type A aortic dissection (ATAAD) patients without myocardial ischemia (MI). Methods We conducted a retrospective cohort study on a multicenter database. A total of 931 ATAAD patients without MI underwent thoracic aortic surgery between 2018 and 2019 in the Acute Aortic Syndrome Cooperation Network (AASCN) and were enrolled in our study. Patients were divided into two groups: ACI group and non-ACI group. Results There were 139 ACI patients (14.9%) and 792 non-ACI patients (85.1%) in our cohort. ACI group had higher 30-day mortality after surgery than non-ACI group (log-rank test: P = 0.028,Cox regression: hazard ratio [HR], 2.3; 95% confidence interval [95% CI], 1.1–5.39; P = 0.047), especially in sub-group of advanced age (53–80 years; HR, 4.0; 95% CI, 1.3–12.8; P = 0.017), low diastolic blood pressure (29-69 mmHg, HR, 3.8; 95% CI, 1.3–11.2; P = 0.018), low systolic blood pressure (51–119 mmHg, HR, 3.6; 95% CI, 1.1–12.4; P = 0.040), high body mass index (BMI;27.25–47.52 kg/m2; HR, 3.7; 95% CI, 1.3–10.7; P = 0.015) and high hemoglobin (>145 g/L; HR, 4.3; 95% CI, 1.2–16.0; P = 0.030). Acute renal failure was significant more in ACI group than non-ACI group (24.5% vs. 15.9%; P = 0.014). Conclusions ACI increases the short-term postoperative mortality and acute renal failure in ATAAD patients without MI. ATAAD patients with ACI may need a narrower control range of blood pressure even if without myocardial ischemia. Trial registration ChiCTR1900022637. Retrospectively registered 19 April 2019.
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Affiliation(s)
- Maozhou Wang
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital Medical University, 8 South Road of Workers Stadium, Chaoyang District, Beijing, China.,Present address: Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Ruixin Fan
- Guangdong General Hospital, Guangzhou, Guangdong, China
| | - Tianxiang Gu
- China Medical University First Hospital, China Medical University, Shenyang, Liaoning, China
| | - Chengwei Zou
- Shandong Provincial Hospital, Jinan, Shandong, China
| | - Zonggang Zhang
- People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, Uygur Autonomous Region, China
| | - Zhonghong Liu
- First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Chenhui Qiao
- Zhengzhou University First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan, China
| | - Lizhong Sun
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Road, Beijing, Chaoyang District, China
| | - Ming Gong
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Road, Beijing, Chaoyang District, China.
| | - Haiyang Li
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital Medical University, 8 South Road of Workers Stadium, Chaoyang District, Beijing, China.
| | - Hongjia Zhang
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Road, Beijing, Chaoyang District, China.
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Macaione F, Meloni A, Positano V, Barison A, Todiere G, Pistoia L, Di Lisi D, Novo G, Novo S, Pepe A. The prognostic role of CMR using global planimetric criteria in patients with excessive left ventricular trabeculation. Eur Radiol 2021; 31:7553-7565. [PMID: 33821336 DOI: 10.1007/s00330-021-07875-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 02/01/2021] [Accepted: 03/11/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Although cardiovascular magnetic resonance (CMR) is widely used in the assessment of left ventricular non-compaction (LVNC), there are no universally accepted diagnostic criteria and limited data regarding their prognostic value. We assessed the long-term prognostic role of the planimetric global Grothoff's criteria and of the CMR findings in predicting adverse cardiovascular events (CE). METHODS We prospectively enrolled 78 patients (46.7 ± 18.7 years, 33.3% females) with documented positive Jenni's echocardiographic criteria for LVNC. Cine images were used to quantify function parameters and to assess for the presence of all four quantitative Grothoff's criteria (global Grothoff's criteria). Late gadolinium enhancement (LGE) images were acquired to detect the presence of replacement myocardial fibrosis. RESULTS Petersen's CMR criterion for LVNC (NC/C ratio > 2.3 in at least one myocardial segment) was fulfilled in the whole population. Twenty-six patients fulfilled the global Grothoff's criteria (four out of four). The mean duration of the follow-up was 44.2 ± 27.4 months and 28 CE were registered: 10 ventricular tachycardias, 12 episodes of heart failure (HF), four strokes, and two cardiac deaths. In the multivariate analysis, the independent predictive factors for CE were positive global Grothoff's criteria (hazard ratio, HR = 3.33, 95% CI = 1.52-7.29; p = 0.003) and myocardial fibrosis (HR = 2.41, 95% CI = 1.08-5.36; p = 0.032). CONCLUSIONS Positive global Grothoff's criteria and myocardial fibrosis were powerful predictors of CE in patients with a diagnosis of LVNC by CMR Petersen's criterion. Thus, we strongly suggest a step approach confirming the diagnosis of LVNC by using the global planimetric Grothoff's criteria, which showed a prognostic impact. KEY POINTS • Positive global Grothoff's criteria and replacement myocardial fibrosis were powerful predictors of cardiovascular events in patients with a diagnosis of LVNC by CMR Petersen's criterion. • Positive global Grothoff's criteria were associated with a higher frequency of ventricular arrhythmias in patients with a diagnosis of LVNC by CMR Petersen's criterion.
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Affiliation(s)
- Francesca Macaione
- MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, Via Moruzzi 1, 56124, Pisa, Italy.,Department of Cardiology, Policlinico "P. Giaccone", Palermo, Italy
| | - Antonella Meloni
- MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, Via Moruzzi 1, 56124, Pisa, Italy
| | - Vincenzo Positano
- MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, Via Moruzzi 1, 56124, Pisa, Italy
| | - Andrea Barison
- MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, Via Moruzzi 1, 56124, Pisa, Italy
| | - Giancarlo Todiere
- MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, Via Moruzzi 1, 56124, Pisa, Italy
| | - Laura Pistoia
- MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, Via Moruzzi 1, 56124, Pisa, Italy
| | | | - Giuseppina Novo
- Department of Cardiology, Policlinico "P. Giaccone", Palermo, Italy
| | - Salvatore Novo
- Department of Cardiology, Policlinico "P. Giaccone", Palermo, Italy
| | - Alessia Pepe
- MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, Via Moruzzi 1, 56124, Pisa, Italy.
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Cardiac Arrhythmias in Survivors of Sudden Cardiac Death Requiring Impella Assist Device Therapy. J Clin Med 2021; 10:jcm10071393. [PMID: 33807208 PMCID: PMC8037009 DOI: 10.3390/jcm10071393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/17/2021] [Accepted: 03/24/2021] [Indexed: 11/16/2022] Open
Abstract
In this retrospective single-center trial, we analyze 109 consecutive patients (female: 27.5%, median age: 69 years, median left ventricular ejection fraction: 20%) who survived sudden cardiac death (SCD) and needed hemodynamic support from an Impella assist device between 2008 and 2018. Rhythm monitoring is investigated in this population and associations with hospital survival are analyzed. Hospital mortality is high, at 83.5%. Diverse cardiac arrhythmias are frequently registered during Impella treatment. These include atrial fibrillation (AF, 21.1%) and ventricular tachycardia (VT, 18.3%), as well as AV block II°/III° (AVB, 7.3%), while intermittent asystole (ASY) is the most frequently observed arrhythmia (42.2%). Nevertheless, neither ventricular nor supraventricular tachycardias are associated with patients' survival. In patients who experience intermittent asystole, a trend towards a fatal outcome is noted (p = 0.06). Conclusions: Mortality is high in these severely sick patients. While cardiac arrhythmias were frequent, they did not predict hospital mortality in this population. The hemodynamic support of the pump seems to counterbalance the adverse effects of these events.
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Petersen SE, Friebel R, Ferrari V, Han Y, Aung N, Kenawy A, Albert TSE, Naci H. Recent Trends and Potential Drivers of Non-invasive Cardiovascular Imaging Use in the United States of America and England. Front Cardiovasc Med 2021; 7:617771. [PMID: 33575273 PMCID: PMC7870990 DOI: 10.3389/fcvm.2020.617771] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/18/2020] [Indexed: 12/30/2022] Open
Abstract
Background: Non-invasive Cardiovascular imaging (NICI), including cardiovascular magnetic resonance (CMR) imaging provides important information to guide the management of patients with cardiovascular conditions. Current rates of NICI use and potential policy determinants in the United States of America (US) and England remain unexplored. Methods: We compared NICI activity in the US (Medicare fee-for-service, 2011-2015) and England (National Health Service, 2012-2016). We reviewed recommendations related to CMR from Clinical Practice Guidelines, Appropriate Use Criteria (AUC), and Choosing Wisely. We then categorized recommendations according to whether CMR was the only recommended NICI technique (substitutable indications). Reimbursement policies in both settings were systematically collated and reviewed using publicly available information. Results: The 2015 rate of NICI activity in the US was 3.1 times higher than in England (31,055 vs. 9,916 per 100,000 beneficiaries). The proportion of CMR of all NICI was small in both jurisdictions, but nuclear cardiac imaging was more frequent in the US in absolute and relative terms. American and European CPGs were similar, both in terms of number of recommendations and proportions of indications where CMR was not the only recommended NICI technique (substitutable indications). Reimbursement schemes for NICI activity differed for physicians and hospitals between the two settings. Conclusions: Fee-for-service physician compensation in the US for NICI may contribute to higher NICI activity compared to England where physicians are salaried. Reimbursement arrangements for the performance of the test may contribute to the higher proportion of nuclear cardiac imaging out of the total NICI activity. Differences in CPG recommendations appear not to explain the variation in NICI activity between the US and England.
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Affiliation(s)
- Steffen E. Petersen
- Barts Heart Centre St Bartholomew's Hospital, Barts Health National Health Service (NHS) Trust, London, United Kingdom
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Rocco Friebel
- Department of Health Policy, The London School of Economics and Political Science, London, United Kingdom
- Center for Global Development, London, United Kingdom
| | - Victor Ferrari
- Division of Cardiovascular Medicine, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, United States
| | - Yuchi Han
- Division of Cardiovascular Medicine, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, United States
| | - Nay Aung
- Barts Heart Centre St Bartholomew's Hospital, Barts Health National Health Service (NHS) Trust, London, United Kingdom
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Asmaa Kenawy
- Barts Heart Centre St Bartholomew's Hospital, Barts Health National Health Service (NHS) Trust, London, United Kingdom
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | | | - Huseyin Naci
- Department of Health Policy, The London School of Economics and Political Science, London, United Kingdom
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40
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Ducharme-Smith A, Chahal CAA, Sawatari H, Podboy A, Sherif A, Scott CG, Brady PA, Gersh BJ, Somers VK, Nkomo VT, Pellikka PA. Relationship Between Anemia and Sudden Cardiac Death in Patients With Severe Aortic Stenosis. Am J Cardiol 2020; 136:107-114. [PMID: 32946861 DOI: 10.1016/j.amjcard.2020.09.007] [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: 06/30/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 10/23/2022]
Abstract
Aortic stenosis (AS) is associated with significant morbidity and mortality, including sudden cardiac death (SCD). Anemia is a known risk factor for mortality in patients with AS. We sought to understand the prognostic implications between anemia and SCD in severe AS. The Mayo Clinic AS database includes 8,357 adults with severe AS (mean gradient ≥40 mm Hg, aortic valve area ≤1 cm2, or peak aortic jet velocity ≥4 m/s) enrolled between January 1, 1995 and April 30, 2015. Survival and cause of death were ascertained from the National Death Index and SCD from medical records. We excluded patients with multiple valvular abnormalities, leaving 7,292 subjects. The median (interquartile range, [IQR]) age was 76 (68, 82) years with 56% male, and median (IQR) hemoglobin level was 12.9 (11.6, 14.1) g/dl. The frequency of anemia (hemoglobin <13.0g/dl for men, <12.0 g/dL for women) was 40%. During median (IQR) follow up of 4.4 (1.8, 8.1) years, 4,056 died (10-year survival 38%) including 225 with SCD (10-year cumulative incidence 5%). In a multivariate model including age, sex, body-mass index, hypertension, diabetes mellitus, myocardial infarction, estimated glomerular filtration rate, and time dependent aortic valve replacement, anemia was associated with increased all-cause mortality (hazard ratios 1.75, 95%CI 1.64, 1.87; p < 0.001) and increased SCD mortality (hazard ratios 1.42, 95%CI 1.07, 1.86; p = 0.01). In conclusions, anemia is a frequent finding in patients with severe AS and independently associated with increased all-cause mortality and SCD. Anemia may be a useful prognostic marker and a modifiable therapeutic target in managing patients with severe AS.
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Family-Based Whole Genome Sequencing Identified Novel Variants in ABCA5 Gene in a Patient with Idiopathic Ventricular Tachycardia. Pediatr Cardiol 2020; 41:1783-1794. [PMID: 32939586 DOI: 10.1007/s00246-020-02446-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/30/2020] [Indexed: 10/23/2022]
Abstract
Idiopathic ventricular tachycardia (IVT) is the major cause of sudden cardiac death. Patients with IVT were usually manifested without structural heart disease. In this present study, we performed family-based whole genome sequencing (WGS) and Sanger sequencing for a 5-year-old Chinese boy with IVT and all the unaffected family members in order to identify the candidate gene and disease-causing mutation underlying the disease phenotype. Results showed that a novel heterozygous single-nucleotide duplication (c.128dup) and a novel heterozygous missense (c.3328A > G) variant in ABCA5 gene were identified in the proband. The single-nucleotide duplication (c.128dupT), inherited from his father and patrilineal grandfather, leads to a frameshift which results into the formation of a truncated ABCA5 protein of 50 (p.Leu43Phefs*8) amino acids. Hence, it is a loss-of-function mutation. The missense (c.3328A > G) variant, inherited from his mother, leads to the replacement of isoleucine by valine at the position of 1110 (p.Ile1110Val) of the ABCA5 protein. Multiple sequence alignment showed that p.Ile1110 is evolutionarily conserved among several species indicating both the structural and functional significance of the p.Ile1110 residue in the wild-type ABCA5 protein. Quantitative RT-PCR showed that the ABCA5 mRNA expression levels were decreased in the proband. These two novel variants of ABCA5 gene were co-segregated well among all the members of this family. Our present study also strongly supports the importance of using family-based whole genome sequencing for identifying novel candidate genes associated with IVT.
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Clinical Implications and Gender Differences of KCNQ1 p.Gly168Arg Pathogenic Variant in Long QT Syndrome. J Clin Med 2020; 9:jcm9123846. [PMID: 33256261 PMCID: PMC7760054 DOI: 10.3390/jcm9123846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/19/2020] [Accepted: 11/24/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Long QT syndrome (LQTS) is an inheritable arrhythmogenic disorder associated with life-threatening arrhythmic events (LAEs). In general, patients with LQTS2 (KCNH2) and LQTS3 (SCN5A) are considered to be a greater risk of LAEs than LQTS1 (KCNQ1) patients. Gender differences are also important. Series analyzing families with the same pathogenic variants may help in the progress of elaborating strong specific genotype-phenotype management strategies. In this manuscript, we describe the phenotype of seven unrelated families, carriers of the KCNQ1 G168R pathogenic variant. METHODS we identified all consecutive index cases referred for genetic testing with LQTS diagnosis carriers of KCNQ1 G168R variant. Genetic and clinical screening for all available relatives was performed. RESULTS we evaluated seven unrelated families, with a total 34 KCNQ1 G168R carriers (two obligated carriers died without available EKGs to evaluate the phenotype). All index cases but one were women and three of them presented with aborted sudden cardiac death (SCD) or syncope. The presence of sudden death in these families is notable, with a total of nine unexplained sudden deaths and four aborted SCD. Phenotype penetrance was 100% in women and 37.5% in men. CONCLUSIONS KCNQ1 G168R is a pathogenic variant, with a high penetrance among women and mild penetrance among men. Risk for LAEs in this variant seems not negligible, especially among woman, and risk stratification should always be carefully evaluated.
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Hmiel L, Nemeth A. An Interesting Case of a Cold Left Arm. Cureus 2020; 12:e11524. [PMID: 33354468 PMCID: PMC7746329 DOI: 10.7759/cureus.11524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Inter-arm variability in blood pressure readings typically signifies arterial disease between the aortic arch and the subclavian artery. The differential diagnosis includes thoracic aortic dissection, atherosclerosis, thoracic outlet syndrome, and subclavian artery stenosis and thrombosis. In patients with prior coronary artery bypass grafting, including the internal mammary artery, several of those conditions can compromise coronary blood flow and lead to myocardial ischemia. Here we discuss a case of left subclavian artery thrombosis, which compromised left internal mammary artery blood flow and led to ischemic ventricular tachycardia.
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Affiliation(s)
- Laura Hmiel
- Internal Medicine, University Hospitals Cleveland Medical Center, Cleveland, USA.,Internal Medicine, Louis Stokes Cleveland VA Medical Center/Case Western Reserve University School of Medicine, Cleveland, USA
| | - Attila Nemeth
- Internal Medicine, Louis Stokes Cleveland VA Medical Center/Case Western Reserve University School of Medicine, Cleveland, USA
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El Masri I, Kayali SM, Blount C, Kirolos I, Khouzam JP, Kabra R. Is Exercise Helpful or Harmful in Dealing With Specific Arrhythmia. Curr Probl Cardiol 2020; 46:100740. [PMID: 33213943 DOI: 10.1016/j.cpcardiol.2020.100740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 10/04/2020] [Indexed: 10/23/2022]
Abstract
Exercise is universally known to benefit health by lowering risk for cardiovascular disease and mortality. However, in patients with pre-existing cardiac conditions, including channelopathies, cardiomyopathies and coronary artery disease, exercise can cause sudden cardiac death (SCD). In this review, we explore exercise related risks and current recommendations for specific conditions. The risk of myocardial infarction (MI) during strenuous exercise in asymptomatic individuals with coronary artery disease is decreased with habitual exercise, especially if they have a normal ejection fraction and no ischemia. Furthermore, cardiac rehabilitation has been shown to be beneficial in heart failure. On the other hand, surgery is recommended for certain anomalous coronaries prior to engaging in vigorous activity. In addition, both exercise-induced disease progression and SCD in arrhythmogenic cardiomyopathy restrict ability to engage in competitive sports, as is the case in hypertrophic cardiomyopathy. Other diseases, like myocarditis only cause temporary risk for SCD. Previously considered benign, common conditions like early repolarization do increase SCD risk. Finally, certain gear including thicker chest protectors for athletes engaging in sports with hard, small spherical objects decrease risk of commotio cordis. While significant advances have been achieved in diagnosing and treating previously unrecognized conditions that predispose to sudden cardiac death, more research is needed to further tailor recommendations to allow beneficial exercise in those with rarer conditions that are under-represented in large systemic studies.
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45
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Liu P, Wang L, Han D, Sun C, Xue X, Li G. Acquired long QT syndrome in chronic kidney disease patients. Ren Fail 2020; 42:54-65. [PMID: 31878817 PMCID: PMC6968512 DOI: 10.1080/0886022x.2019.1707098] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 11/30/2019] [Accepted: 12/01/2019] [Indexed: 12/19/2022] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in chronic kidney disease (CKD) patients. QT interval prolongation is a congenital or acquired condition that is associated with an increased risk of torsade de pointes (TdP), sudden cardiac death (SCD), and all-cause mortality in the general population. The prevalence of acquired long QT syndrome (aLQTS) is high, and various acquired conditions contribute to the prolonged QT interval in patients with CKD. More notably, the prolonged QT interval in CKD is an independent risk factor for SCD and all-cause mortality. In this review, we focus on the epidemiological characteristics, risk factors, underlying mechanisms and treatments of aLQTS in CKD, promoting the management of aLQTS in CKD patients.
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Affiliation(s)
- Peng Liu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, P.R. China;
| | - Lu Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, P.R. China;
- Department of Endocrinology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Dan Han
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, P.R. China;
| | - Chaofeng Sun
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, P.R. China;
| | - Xiaolin Xue
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, P.R. China;
| | - Guoliang Li
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, P.R. China;
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46
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Diagnostic findings and follow-up outcomes in relatives to young non-autopsied sudden death victims. Int J Cardiol 2020; 318:61-66. [DOI: 10.1016/j.ijcard.2020.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/02/2020] [Accepted: 06/09/2020] [Indexed: 12/20/2022]
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47
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Sanders JL, Koestenberger M, Rosenkranz S, Maron BA. Right ventricular dysfunction and long-term risk of death. Cardiovasc Diagn Ther 2020; 10:1646-1658. [PMID: 33224778 DOI: 10.21037/cdt-20-450] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Sudden cardiac death (SCD), or sudden loss of life-sustaining systemic and cerebral perfusion, is most often due to left ventricular (LV) dysfunction secondary to ischemic or structural cardiac disease or channelopathies. Degeneration of sinus rhythm into ventricular tachycardia and ultimately ventricular fibrillation is the final common pathway for most heart failure patients. Right ventricular (RV) dysfunction is recognized as an independent contributor to worsening heart failure. There is emerging evidence that RV dysfunction may also be an independent predictor of SCD. This review examines the role of RV dysfunction on modifying long term risk of SCD, and explores possible mechanisms that may underlie SCD. The RV has unique anatomy and physiology compared to the LV. Subsequently, we begin with a review of cardiac embryology, focusing on the chambers, valves, coronary arteries, and cardiac conduction system to understand the origins of RV dysfunction. Static and dynamic physiology of the RV is contrasted with that of the LV. Particular emphasis is placed on ventriculo-arterial coupling, mechanical cardiac constraint, and ventricular interdependence. The epidemiology of SCD is briefly reviewed to highlight how causes of SCD are age-specific. In turn, the age-specific causes of RV dysfunction are presented, including those which predominate in childhood and adolescence [arrhythmogenic RV dysplasia (ARVD) and hypertrophic cardiomyopathy (HCM)] and older adulthood (cardiac ischemia, chronic congestive heart failure and post-capillary pulmonary hypertension, and pulmonary hypertension). There is a clear need for additional studies on the independent contribution of RV dysfunction to overall functional capacity, SCD-associated mortality, and non-SCD-associated mortality. Discovery would be aided by the development of prospective cohorts with excellent RV phenotyping, coupled with deeper biologic measurements linking mechanisms to clinically relevant outcomes.
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Affiliation(s)
- Jason L Sanders
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Martin Koestenberger
- Divison of Pediatric Cardiology, Department of Pediatrics, Medical University Graz, Graz, Austria
| | - Stephan Rosenkranz
- Clinic III for Internal Medicine (Cardiology) and Cologne Cardiovascular Research Center, Heart Center at the University of Cologne, Cologne, Germany
| | - Bradley A Maron
- Division of Cardiovascular Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
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Vijayaraman P, Dandamudi G, Subzposh FA, Shepard RK, Kalahasty G, Padala SK, Strobel JS, Bauch TD, Ellenbogen KA, Bergemann T, Hughes L, Harris ML, Fagan DH, Yang Z, Koneru JN. Imaging-Based Localization of His Bundle Pacing Electrodes: Results From the Prospective IMAGE-HBP Study. JACC Clin Electrophysiol 2020; 7:73-84. [PMID: 33478715 DOI: 10.1016/j.jacep.2020.07.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/20/2020] [Accepted: 07/23/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVES This study sought to evaluate the correlation between His bundle (HB) pacing (HBP) implantation characteristics, lead-tip location, and association of intraprocedural His recordings with approximated HB anatomic landmarks using computed tomography (CT) imaging. BACKGROUND HBP continues to grow in clinical practice due to offering true physiological pacing. However, a clear understanding of HB anatomy and the lead-tip location's influence on pacing characteristics is lacking. METHODS The IMAGE-HBP study (Imaging Study of Lead Implant for His Bundle Pacing) was a prospective, multicenter study designed to assess implantation characteristics of the SelectSecure Model 3830 lead placed at the HB, evaluate protocol-specified HBP success (His recording present on electrogram and HBP threshold ≤2.5 V at 1 ms), and correlation between lead-tip location by CT imaging and HBP characteristics as well as lead-related complications through 12 months. RESULTS Sixty-nine patients underwent a lead implantation attempt at the HB. Of these, 61 patients (88%) had a lead successfully implanted at the HB, and 52 patients (75%) met the pre-specified definition of successful HBP. In 51 patients with CT imaging, 11 leads (22%) were placed in the atrial aspect of the HB region (36% selective HBP), and 40 leads (78%) were placed in the ventricular aspect (28% selective HBP). Four of the 51 patients had P-wave oversensing, all with leads in the atrium. Freedom from lead-related complication at 12 months was 93%. CONCLUSIONS Successful HBP could be achieved at lead-tip locations in the atrium or ventricle but is preferable in the ventricle to eliminate risk of oversensing. The IMAGE-HBP study offers better insight into approximated HB anatomic landmarks, lead-tip location, and correlation with pacing characteristics. (Imaging Study of Lead Implant for His Bundle Pacing [IMAGE-HBP]; NCT03294317).
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Affiliation(s)
| | - Gopi Dandamudi
- Division of Cardiology, Division of Cardiac Electrophysiology, Indiana University, Indianapolis, Indiana, USA
| | | | - Richard K Shepard
- Department of Cardiology, Division of electrophysiology Virginia Commonwealth University, Richmond, Virginia, USA
| | - Gautham Kalahasty
- Department of Cardiology, Division of electrophysiology Virginia Commonwealth University, Richmond, Virginia, USA
| | - Santosh K Padala
- Department of Cardiology, Division of electrophysiology Virginia Commonwealth University, Richmond, Virginia, USA
| | - John S Strobel
- Division of Cardiology, Division of Cardiac Electrophysiology, Indiana University, Indianapolis, Indiana, USA
| | - Terry D Bauch
- Geisinger Heart Institute, Wilkes-Barre, Pennsylvania, USA
| | - Kenneth A Ellenbogen
- Department of Cardiology, Division of electrophysiology Virginia Commonwealth University, Richmond, Virginia, USA
| | | | - Lisa Hughes
- Medtronic, Inc., Mounds View, Minnesota, USA
| | | | | | | | - Jayanthi N Koneru
- Department of Cardiology, Division of electrophysiology Virginia Commonwealth University, Richmond, Virginia, USA
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Shah NN, Ayyadurai P, Saad M, Kosmas CE, Dogar MU, Patel U, Vittorio TJ. Galactin-3 and soluble ST2 as complementary tools to cardiac MRI for sudden cardiac death risk stratification in heart failure: A review. JRSM Cardiovasc Dis 2020; 9:2048004020957840. [PMID: 33088496 DOI: 10.1177/2048004020957840] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 11/17/2022] Open
Abstract
Heart failure (HF) is recognized as one of the leading causes of morbidity and mortality worldwide. Every year about 500,000 new cases of HF are diagnosed in the United States. The predominant etiology of death in HF patients include sudden cardiac death (SCD) and pump failure. Prediction of mode of death may help in devising management decisions. In patients with HF, the presence of myocardial fibrosis has been a known risk factor for SCD and thus it could be used as a criterion in risk stratification for SCD. However, the underlying pathophysiology of SCD is uncertain and controversial, which makes it necessary to develop newer tools to enhance SCD risk stratification. The newer tools should be innovative enough either to complement or to replace the currently available tools. In this scoping review, we highlighted the utilization of novel biomarkers galectin-3 (gal-3) and soluble ST2 (sST2) and discussed that how they might complement currently available tools such as, cardiac MRI (CMR) for SCD risk stratification in HF patients.
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Affiliation(s)
- Niel N Shah
- Department of Medicine, BronxCare Health System/BronxCare Hospital Center, Bronx, NY, USA
| | - Puvanalingam Ayyadurai
- Department of Medicine, BronxCare Health System/BronxCare Hospital Center, Bronx, NY, USA
| | - Muhammad Saad
- Department of Medicine, BronxCare Health System/BronxCare Hospital Center, Bronx, NY, USA
| | - Constantine E Kosmas
- Department of Medicine, Division of Cardiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Muhammad U Dogar
- Department of Medicine, SUNY Downstate Medical Center, Brooklyn, NY, USA
| | - Upen Patel
- Department of Medicine, Nassau University Medical Center, East Meadow, NY, USA
| | - Timothy J Vittorio
- Department of Medicine, BronxCare Health System/BronxCare Hospital Center, Bronx, NY, USA
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50
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Alhakak A, Østergaard L, Butt JH, Vinther M, Philbert BT, Jacobsen PK, Yafasova A, Torp-Pedersen C, Køber L, Fosbøl EL, Mogensen UM, Weeke PE. Cause-specific death and risk factors of one-year mortality after implantable cardioverter-defibrillator implantation: a nationwide study. EUROPEAN HEART JOURNAL. QUALITY OF CARE & CLINICAL OUTCOMES 2020; 8:39-49. [PMID: 32956442 DOI: 10.1093/ehjqcco/qcaa074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/06/2020] [Accepted: 09/09/2020] [Indexed: 11/13/2022]
Abstract
AIMS Current treatment guidelines recommend implantable cardioverter-defibrillators (ICDs) in eligible patients with an estimated survival beyond one year. There is still an unmet need to identify patients who are unlikely to benefit from an ICD.We determined cause-specific one-year mortality after ICD implantation and identified associated risk factors. METHODS AND RESULTS Using Danish nationwide registries (2000-2017), we identified 14,516 patients undergoing first-time ICD implantation for primary or secondary prevention. Risk factors associated with one-year mortality were evaluated using multivariable logistic regression. The median age was 66 years, 81.3% were male, and 50.3% received an ICD for secondary prevention. The one-year mortality rate was 4.8% (694/14,516). ICD recipients who died within one year were older and more comorbid compared to those who survived (72 vs. 66 years, p < 0.001). Risk factors associated with increased one-year mortality included dialysis (OR:3.26, CI:2.37-4.49), chronic renal disease (OR:2.14, CI:1.66-2.76), cancer (OR:1.51, CI:1.15-1.99), age 70-79 years (OR:1.65, CI:1.36-2.01), and age ≥80 years (OR:2.84, CI:2.15-3.77). The one-year mortality rates for the specific risk factors were: dialysis (13.8%), chronic renal disease (13.1%), cancer (8.5%), age 70-79 years (6.9%), and age ≥80 years (11.0%). Overall, the most common causes of mortality were related to cardiovascular diseases (62.5%), cancer (10.1%), and endocrine disorders (5.0%). However, the most common cause of death among patients with cancer was cancer-related (45.7%). CONCLUSION Among ICD recipients, mortality rates were low and could be indicative of relevant patient selection. Important risk factors of increased one-year mortality included dialysis, chronic renal disease, cancer, and advanced age.
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Affiliation(s)
- Amna Alhakak
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Lauge Østergaard
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Jawad H Butt
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Michael Vinther
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Berit T Philbert
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Peter K Jacobsen
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Adelina Yafasova
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | | | - Lars Køber
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Emil L Fosbøl
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Ulrik M Mogensen
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
| | - Peter E Weeke
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Denmark
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