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Hoevelmann J, Sliwa K, Schaar JM, Briton O, Böhm M, Meyer MR, Viljoen C. Adherence to heart failure treatment in patients with peripartum cardiomyopathy. ESC Heart Fail 2024. [PMID: 38439175 DOI: 10.1002/ehf2.14712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 01/08/2024] [Accepted: 01/18/2024] [Indexed: 03/06/2024] Open
Abstract
AIMS Peripartum cardiomyopathy (PPCM) is characterized by left ventricular (LV) dysfunction developing towards the end of pregnancy or in the first months postpartum. Although about 60% of women with PPCM (the majority of which are prescribed evidence based heart failure [HF] medications) show LV recovery within 6 to 12 months, others remain with persistently impaired LV function. Poor adherence to medical therapy represents a major cause of avoidable hospitalizations, disability, and death in other cardiovascular conditions. In this study, we aimed to determine drug adherence to HF therapy among women with PPCM and to identify possible associations between drug adherence and LV recovery, functional status and psychological well-being. METHODS AND RESULTS In this single-centre, prospective, observational study, we included 36 consecutive women with PPCM. Adherence to HF treatment was assessed by (i) verifying the collection of pharmacy refills and (ii) using liquid chromatography high-resolution mass spectrometry (LC-HRMS). Participants were thereby classified as 'adherent' (i.e. all prescribed HF drugs were detectable by LC-HRMS), 'partially adherent' (i.e. at least one prescribed drug detectable) or 'non-adherent' (i.e. none of the prescribed drugs detectable). Health state index scores were assessed by EQ-5D-5L and HADS-A/D (for anxiety/depression). Patients' median age was 32.4 years (IQR 27.6-36.1). At the adherence visit (which occurred at a median of 16 months [IQR 5-45] after PPCM diagnosis), prescription included beta-blockers (77.8%), angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers (75%), mineralocorticoid receptor antagonists (47.2%) and loop diuretics (95.2%). Less than two thirds of patients (63.9%) collected all their pharmacy refills in the 6 months prior to adherence visit. According to LC-HRMS, 23.5% participants were classified as adherent, 53.0% as partially adherent, and 23.5% as non-adherent. Adherence was associated with significantly lower LVEDD at follow-up (47 mm [IQR 46-52), vs. 56 mm [IQR 49-64] with partial adherence, and 62 mm [IQR 55-64] with non-adherence, P = 0.022), and higher LVEF at follow-up (60% [IQR 41-65]), vs. partially adherence (46% [IQR 34-50]) and non-adherence (41.0% [IQR 29-47], P = 014). Adherent patients had a lower overall EQ- 5D score (5.5 [IQR 5-7.5], vs. 6 [IQR 5-7] in partially adherent, and 10 [IQR 8-15] in non-adherent patients, P = 0.032) suggestive of a better self-rated health status. CONCLUSIONS Adherence to HF therapy was associated with favourable LV reverse remodelling in PPCM and better self-rated health status. Our study highlights the importance of drug adherence for functional recovery. Drug adherence should be an important component of patient communication and specific interventions in PPCM.
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Affiliation(s)
- Julian Hoevelmann
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Saarland University Hospital, Homburg (Saar), Germany
| | - Karen Sliwa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Division of Cardiology, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Juel Maalouli Schaar
- Department of Experimental and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Homburg (Saar), Germany
| | - Olivia Briton
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Michael Böhm
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Saarland University Hospital, Homburg (Saar), Germany
| | - Markus R Meyer
- Department of Experimental and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Homburg (Saar), Germany
| | - Charle Viljoen
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Division of Cardiology, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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2
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Sliwa K, van der Meer P, Viljoen C, Jackson AM, Petrie MC, Mebazaa A, Hilfiker-Kleiner D, Maggioni AP, Laroche C, Regitz-Zagrosek V, Tavazzi L, Roos-Hesselink JW, Hamdan R, Frogoudaki A, Ibrahim B, Farhan HAF, Mbakwem A, Seferovic P, Böhm M, Pieske B, Johnson MR, Bauersachs J. Socio-economic factors determine maternal and neonatal outcomes in women with peripartum cardiomyopathy: A study of the ESC EORP PPCM registry. Int J Cardiol 2024; 398:131596. [PMID: 37979788 DOI: 10.1016/j.ijcard.2023.131596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 09/20/2023] [Accepted: 11/14/2023] [Indexed: 11/20/2023]
Abstract
BACKGROUND Peripartum cardiomyopathy (PPCM) is a global disease with substantial morbidity and mortality. The aim of this study was to analyze to what extent socioeconomic factors were associated with maternal and neonatal outcomes. METHODS In 2011, >100 national and affiliated member cardiac societies of the European Society of Cardiology (ESC) were contacted to contribute to a global PPCM registry, under the auspices of the ESC EORP Programme. We investigated the characteristics and outcomes of women with PPCM and their babies according to individual and country-level sociodemographic factors (Gini index coefficient [GINI index], health expenditure [HE] and human developmental index [HDI]). RESULTS 739 women from 49 countries (Europe [33%], Africa [29%], Asia-Pacific [15%], Middle East [22%]) were enrolled. Low HDI was associated with greater left ventricular (LV) dilatation at time of diagnosis. However, baseline LV ejection fraction did not differ according to sociodemographic factors. Countries with low HE prescribed guideline-directed heart failure therapy less frequently. Six-month mortality was higher in countries with low HE; and LV non-recovery in those with low HDI, low HE and lower levels of education. Maternal outcome (death, re-hospitalization, or persistent LV dysfunction) was independently associated with income. Neonatal death was significantly more common in countries with low HE and low HDI, but was not influenced by maternal income or education attainment. CONCLUSIONS Maternal and neonatal outcomes depend on country-specific socioeconomic characteristics. Attempts should therefore be made to allocate adequate resources to health and education, to improve maternal and fetal outcomes in PPCM.
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Affiliation(s)
- Karen Sliwa
- Cape Heart Institute, Department of Medicine and Cardiology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
| | - Peter van der Meer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Charle Viljoen
- Cape Heart Institute, Department of Medicine and Cardiology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Alice M Jackson
- Institute of Cardiovascular and Medical Sciences, Glasgow University, Glasgow, United Kingdom
| | - Mark C Petrie
- Institute of Cardiovascular and Medical Sciences, Glasgow University, Glasgow, United Kingdom
| | - Alexandre Mebazaa
- Department of Anaesthesia and Critical Care, University Hospitals Saint Louis-Lariboisière Paris, University Paris Diderot, Paris, France
| | | | - Aldo P Maggioni
- ANMCO Research Centre, Firenze, Italy; EURObservational Research Programme, European Society of Cardiology, Sophia Antipolis, France
| | - Cecile Laroche
- EURObservational Research Programme, European Society of Cardiology, Sophia Antipolis, France
| | - Vera Regitz-Zagrosek
- Berlin Institute of Gender in Medicine (GiM), Charité - Universitätsmedizin, Berlin, Germany
| | - Luigi Tavazzi
- Maria Cecilia Hospital, GVM Care & Research, Cotignola, Italy
| | | | - Righab Hamdan
- Cardiology Department, Al Qassimi Hospital, Sharjah, United Arab Emirates
| | | | | | - Hasan Ali Farhan Farhan
- Iraqi Board for Medical Specializations, Scientific Council of Cardiology, College of Medicine, University of Baghdad, Baghdad Heart Center, Baghdad, Iraq
| | - Amam Mbakwem
- Department of Medicine, College of Medicine and Lagos University Teaching Hospital, Lagos, Nigeria
| | - Petar Seferovic
- University of Belgrade Faculty of Medicine, Belgrade, Serbia
| | - Michael Böhm
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Homburg, Germany
| | - Burkert Pieske
- Department of Cardiology, Charité-Universitätsmedizin, Berlin, Germany
| | - Mark R Johnson
- Department of Obstetrics, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, United Kingdom
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Medical School Hannover, Hannover, Germany
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Affiliation(s)
- Charle Viljoen
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, 4th Floor, Chris Barnard Building, Anzio Road, Observatory, 7925 Cape Town, South Africa
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, South Africa
| | - Julian Hoevelmann
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, 4th Floor, Chris Barnard Building, Anzio Road, Observatory, 7925 Cape Town, South Africa
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Saarland University, Homburg, Germany
| | - Karen Sliwa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, 4th Floor, Chris Barnard Building, Anzio Road, Observatory, 7925 Cape Town, South Africa
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, South Africa
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Kodogo V, Viljoen C, Hoevelmann J, Chakafana G, Tromp J, Farhan HA, Goland S, van der Meer P, Karaye K, Kryczka K, Hilfiker-Kleiner D, Jackson A, Mebazaa A, Böhm M, Pieske B, Bauersachs J, Bell L, Sliwa K. Proteomic Profiling in Patients With Peripartum Cardiomyopathy: A Biomarker Study of the ESC EORP PPCM Registry. JACC Heart Fail 2023; 11:1708-1725. [PMID: 37804308 DOI: 10.1016/j.jchf.2023.07.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/14/2023] [Accepted: 07/25/2023] [Indexed: 10/09/2023]
Abstract
BACKGROUND Peripartum cardiomyopathy (PPCM) remains an important cause of maternal morbidity and mortality globally. The pathophysiology remains incompletely understood, and the diagnosis is often missed or delayed. OBJECTIVES This study explored the serum proteome profile of patients with newly diagnosed PPCM, as compared with matched healthy postpartum mothers, to unravel novel protein biomarkers that would further an understanding of the pathogenesis of PPCM and improve diagnostic precision. METHODS Study investigators performed untargeted serum proteome profiling using data-independent acquisition-based label-free quantitative liquid chromatography-tandem mass spectrometry on 84 patients with PPCM, as compared with 29 postpartum healthy controls (HCs). Significant changes in protein intensities were determined with nonpaired Student's t-tests and were further classified by using the Boruta algorithm. The proteins' diagnostic performance was evaluated by area under the curve (AUC) and validated using the 10-fold cross-validation. RESULTS Patients with PPCM presented with a mean left ventricular ejection fraction of 33.5% ± 9.3% vs 57.0% ± 8.8% in HCs (P < 0.001). Study investigators identified 15 differentially up-regulated and 14 down-regulated proteins in patients with PPCM compared with HCs. Seven of these proteins were recognized as significant by the Boruta algorithm. The combination of adiponectin, quiescin sulfhydryl oxidase 1, inter-α-trypsin inhibitor heavy chain, and N-terminal pro-B-type natriuretic peptide had the best diagnostic precision (AUC: 0.90; 95% CI: 0.84-0.96) to distinguish patients with PPCM from HCs. CONCLUSIONS Salient biologic themes related to immune response proteins, inflammation, fibrosis, angiogenesis, apoptosis, and coagulation were predominant in patients with PPCM compared with HCs. These newly identified proteins warrant further evaluation to establish their role in the pathogenesis of PPCM and potential use as diagnostic markers.
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Affiliation(s)
- Vitaris Kodogo
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, South Africa
| | - Charle Viljoen
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, South Africa; Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, South Africa
| | - Julian Hoevelmann
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, South Africa; Department of Internal Medicine III-Cardiology, Angiology and Intensive Care Medicine, Saarland University Hospital, Homburg, Germany
| | - Graham Chakafana
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, South Africa; Department of Chemistry and Biochemistry, Hampton University, Hampton, Virginia, USA
| | - Jasper Tromp
- Saw Swee Hock School of Public Health, National University of Singapore and the National University Health System, Singapore; Duke-National University of Singapore Medical School, Singapore
| | | | - Sorel Goland
- Heart Institute, Kaplan Medical Center, Rehovot, affiliated with the Hebrew University, Jerusalem, Israel
| | - Peter van der Meer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, the Netherlands
| | - Kamilu Karaye
- Department of Medicine, Bayero University, Kano, Nigeria
| | | | | | - Alice Jackson
- Institute of Cardiovascular and Medical Sciences, Glasgow University, Glasgow, United Kingdom
| | - Alexandre Mebazaa
- Paris Cité University, French National Institute of Health and Medical Research (INSERM) Cardiovascular MArkers in Stress Conditions (MASCOT), Paris, France; Department of Anesthesiology and Critical Care, Saint Louis Lariboisière Hospitals, Public Assistance Hospital of Paris, Paris, France
| | - Michael Böhm
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, South Africa; Internal Medicine Clinic III -Cardiology, Angiology, and Internist Intensive Medicine, Saarland University Hospital, Saarland University, Homburg, Germany
| | - Burkert Pieske
- Department of Cardiology, Charité-Universitätsmedizin, Berlin, Germany
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - Liam Bell
- Centre for Proteomic and Genomic Research, Cape Town, South Africa, Cape Town, South Africa
| | - Karen Sliwa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, South Africa; Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, South Africa.
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Hoevelmann J, Sliwa K, Briton O, Ntsekhe M, Chin A, Viljoen C. Effectiveness of implantable loop recorder and Holter electrocardiographic monitoring for the detection of arrhythmias in patients with peripartum cardiomyopathy. Clin Res Cardiol 2023; 112:379-391. [PMID: 36131137 PMCID: PMC9998321 DOI: 10.1007/s00392-022-02101-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 09/02/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Patients with peripartum cardiomyopathy (PPCM) are at increased risk of sudden cardiac death (SCD). However, the exact underlying mechanisms of SCD in PPCM remain unknown. By means of extended electrocardiographic monitoring, we aimed to systematically characterize the burden of arrhythmias occurring in patients with newly diagnosed PPCM. METHODS AND RESULTS Twenty-five consecutive women with PPCM were included in this single-centre, prospective clinical trial and randomised to receiving either 24 h-Holter ECG monitoring followed by implantable loop recorder implantation (ILR; REVEAL XT, Medtronic®) or 24 h-Holter ECG monitoring alone. ILR + 24 h-Holter monitoring had a higher yield of arrhythmic events compared to 24 h-Holter monitoring alone (40% vs 6.7%, p = 0.041). Non-sustained ventricular tachycardia (NSVT) occurred in four patients (16%, in three patients detected by 24 h-Holter, and multiple episodes detected by ILR in one patient). One patient deceased from third-degree AV block with an escape rhythm that failed. All arrhythmic events occurred in patients with a severely impaired LV systolic function. CONCLUSIONS We found a high prevalence of potentially life-threatening arrhythmic events in patients with newly diagnosed PPCM. These included both brady- and tachyarrhythmias. Our results highlight the importance of extended electrocardiographic monitoring, especially in those with severely impaired LV systolic function. In this regard, ILR in addition to 24 h-Holter monitoring had a higher yield of VAs as compared to 24 h-Holter monitoring alone. In settings where WCDs are not readily available, ILR monitoring should be considered in patients with severely impaired LV systolic dysfunction, especially after uneventful 24 h-Holter monitoring. TRIAL REGISTRATION Pan African Clinical Trials Registry: PACTR202104866174807. Extended electrocardiographic monitoring for the detection of arrhythmias in PPCM. (CHB, complete heart block/third degree AV block; ECG, electrocardiogram; ILR, implantable loop recorder; NSVT, non-sustained ventricular tachycardia; PPCM, peripartum cardiomyopathy).
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Affiliation(s)
- Julian Hoevelmann
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, 4th Floor Chris Barnard Building, Observatory, Private Bag X3, Cape Town, 7935, South Africa. .,Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Saarland University Hospital, Homburg (Saar), Deutschland.
| | - Karen Sliwa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, 4th Floor Chris Barnard Building, Observatory, Private Bag X3, Cape Town, 7935, South Africa.,Division of Cardiology, Faculty of Health Sciences, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Olivia Briton
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, 4th Floor Chris Barnard Building, Observatory, Private Bag X3, Cape Town, 7935, South Africa
| | - Mpiko Ntsekhe
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, 4th Floor Chris Barnard Building, Observatory, Private Bag X3, Cape Town, 7935, South Africa.,Division of Cardiology, Faculty of Health Sciences, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Ashley Chin
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, 4th Floor Chris Barnard Building, Observatory, Private Bag X3, Cape Town, 7935, South Africa.,Division of Cardiology, Faculty of Health Sciences, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Charle Viljoen
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, 4th Floor Chris Barnard Building, Observatory, Private Bag X3, Cape Town, 7935, South Africa.,Division of Cardiology, Faculty of Health Sciences, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
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Pinto-Filho MM, Paixão GM, Gomes PR, Soares CPM, Singh K, Rossi VA, Thienemann F, Viljoen C, Mohan B, Sarrafzadegan N, Chowdhury AW, Ntusi N, Deora S, Perel P, Prabhakaran D, Sliwa K, Ribeiro ALP. Electrocardiographic findings and prognostic values in patients hospitalised with COVID-19 in the World Heart Federation Global Study. Heart 2022; 109:668-673. [PMID: 36428092 DOI: 10.1136/heartjnl-2022-321754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/09/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND COVID-19 affects the cardiovascular system and ECG abnormalities may be associated with worse prognosis. We evaluated the prognostic value of ECG abnormalities in individuals with COVID-19. METHODS Multicentre cohort study with adults hospitalised with COVID-19 from 40 hospitals across 23 countries. Patients were followed-up from admission until 30 days. ECG were obtained at each participating site and coded according to the Minnesota coding criteria. The primary outcome was defined as death from any cause. Secondary outcomes were admission to the intensive care unit (ICU) and major adverse cardiovascular events (MACE). Multiple logistic regression was used to evaluate the association of ECG abnormalities with the outcomes. RESULTS Among 5313 participants, 2451 had at least one ECG and were included in this analysis. The mean age (SD) was 58.0 (16.1) years, 60.7% were male and 61.1% from lower-income to middle-income countries. The prevalence of major ECG abnormalities was 21.3% (n=521), 447 (18.2%) patients died, 196 (8.0%) had MACE and 1115 (45.5%) were admitted to an ICU. After adjustment, the presence of any major ECG abnormality was associated with a higher risk of death (OR 1.39; 95% CI 1.09 to 1.78) and cardiovascular events (OR 1.81; 95% CI 1.30 to 2.51). Sinus tachycardia (>120 bpm) with an increased risk of death (OR 3.86; 95% CI 1.97 to 7.48), MACE (OR 2.68; 95% CI 1.10 to 5.85) and ICU admission OR 1.99; 95% CI 1.03 to 4.00). Atrial fibrillation, bundle branch block, ischaemic abnormalities and prolonged QT interval did not relate to the outcomes. CONCLUSION Major ECG abnormalities and a heart rate >120 bpm were prognostic markers in adults hospitalised with COVID-19.
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Affiliation(s)
- Marcelo Martins Pinto-Filho
- Cardiology, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Telehealth Center, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Gabriela Miana Paixão
- Telehealth Center, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Internal Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Paulo Rodrigues Gomes
- Telehealth Center, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Carla P M Soares
- Telehealth Center, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Kavita Singh
- Research, Public Health Foundation of India, New Delhi, Haryana, India.,Institute of Global Health, Heidelberg University, Heidelberg, Germany
| | - Valentina Alice Rossi
- Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland
| | - Friedrich Thienemann
- Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Charle Viljoen
- Division of Cardiology, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Bishav Mohan
- Cardiology, Unit Hero DMC Heart Institute, Ludhiana, India
| | - Nizal Sarrafzadegan
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Isfahan, Iran (the Islamic Republic of)
| | | | - Ntobeko Ntusi
- Division of Cardiology, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | - Pablo Perel
- Department of Non-communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK.,World Heart Federation, Geneva, Switzerland
| | | | - Karen Sliwa
- Division of Cardiology, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Antonio Luiz Pinho Ribeiro
- Cardiology, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil .,Telehealth Center, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Internal Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil
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7
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Sliwa-Hahnle K, Van Der Meer P, Viljoen C, Jackson AM, Petrie MC, Maggioni AP, Laroche C, Regitz-Zagrosek V, Tavazzi L, Roos-Hesselink JW, Seferovic P, Frogoudaki A, Ibrahim B, Al-Farham H, Bauersachs J. Socio-economic factors determine maternal and noenatal outcomes in women with peripartum cardiomyopathy: a study of the ESC EORP PPCM registry. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Peripartum cardiomyopathy (PPCM) is a global disease associated with substantial morbidity and mortality.
Purpose
The aim of this study was to analyse to what extent country- and individual-level socioeconomic factors were associated with maternal and neonatal outcomes.
Methods
In 2011, >100 national and affiliated member cardiac societies of the European Society of Cardiology (ESC) were contacted to contribute to a global registry on PPCM, under the auspices of the ESC EORP Programme. Country-level sociodemographic factors were Gini coefficient (GINI), health expenditure (HE) and human developmental index (HDI). Individual-level sociodemographic factors were income and educational attainment. We investigated the characteristics and outcomes of women with PPCM and their babies according to individual and country-specific socioeconomic status.
Results
739 women from 49 countries were enrolled (Europe [33%], Africa [29%], Asia-Pacific [15%], Middle East [22%]). Overall, 142 (19%) of women were from countries with low HDI, 307 (42%) medium HDI and 290 (39%) high HDI. Patients of Black African ethnicity were almost all from low HDI countries (99.3%), Middle Eastern and Asian patients from medium HDI (37.7% and 26.2%), and Caucasian patients were mostly from high HDI (72%, p<0.001). Women from countries with low HDI had lower income and educational attainment. They also underwent fewer Caesarian sections, but breastfed for longer (20 versus 6 months, p<0.001). Low HDI and low GINI were associated with greater LV dilatation at time of diagnosis (p<0.001), but LV ejection fraction (LVEF) did not differ according to HDI, HE or GINI. Countries with low HE prescribed guideline-directed heart failure therapy less frequently. Low HE was associated with more frequent mortality (p<0.002), whereas HDI and GINI were not. Women from countries with low HDI and low HE had significantly less recovery of LV function. Analysis of maternal outcome as per highest level of educational attainment (i.e., primary [n=154], secondary [n=342], tertiary [n=126]), showed significant differences in LVEF at 6 months (43.7+12.9, 46.5+13.0 and 48.9+11.7 respectively, p=0.022). Low maternal income, irrespective of region of origin, was independently associated with poor outcome (composite of maternal death, re-hospitalization, or LV non-recovery). Neonatal death was more prevalent in countries with low HE (p=0.009) and low HDI (p=0.023) but was not influenced by maternal sociodemographic parameters.
Conclusion
Maternal and neonatal outcomes depended on country-specific socioeconomic characteristics, with a greater prevalence of maternal and neonatal deaths in women from countries with low HE. Globally, women with low income and lower levels of educational attainment had poorer outcomes, irrespective of region. Attempts should be made to improve patient education, and allocation of adequate health resources to improve maternal and neonatal outcomes in PPCM.
Funding Acknowledgement
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): 1. EurObservational Research Programme in conjunction with the Heart Failure Association of the European Society of Cardiology Study Group on Peripartum Cardiomyopathy2. Cape Heart Institute, University of Cape Town, Cape Town, South Africa
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Affiliation(s)
| | - P Van Der Meer
- University Medical Centre Groningen , Groningen , The Netherlands
| | - C Viljoen
- University of Cape Town , Cape Town , South Africa
| | - A M Jackson
- Cardiovascular Research Centre of Glasgow , Glasgow , United Kingdom
| | - M C Petrie
- Cardiovascular Research Centre of Glasgow , Glasgow , United Kingdom
| | | | - C Laroche
- European Society of Cardiology , Sophia-Antipolis , France
| | - V Regitz-Zagrosek
- Charite Universitatsmedizin Berlin, Berlin Institute of Gender in Medicine (GiM) , Berlin , Germany
| | - L Tavazzi
- Maria Cecilia Hospital, GVM Care & Research , Cotignola , Italy
| | | | - P Seferovic
- University Belgrade Medical School , Belgrade , Serbia
| | | | - B Ibrahim
- North Cumbria University Hospitals NHS Trust , Carlisle , United Kingdom
| | - H Al-Farham
- Iraqi Board for Medical Specializations, Baghdad Heart Center , Baghdad , Iraq
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8
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Viljoen C, Al-Naili M, Noubiap JJ, Jackson A, Hyun K, Neves A, Nkoke C, Mondo C, Nabbaale J, Dragus A, Perel P, Banerjee A, Cupido BJ, Sliwa K, Hoevelmann J. Point-of-care NT-proBNP for the screening of PREGnancy-related Heart Failure – the PREG-HF study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Cardiovascular disease is an important cause of maternal mortality worldwide. However, diagnosing heart failure (HF) during pregnancy remains challenging. Patients with HF present with symptoms that are often attributed to the physiological changes of pregnancy. Although the measurement of natriuretic peptides (such as NT-proBNP) has been recommended as a cost-effective screening test for HF, its value in predicting underlying structural heart disease on echocardiography during pregnancy is unclear.
Purpose
To evaluate the accuracy of point-of-care (POC) NT-proBNP to predict echocardiographic evidence of structural heart disease in pregnant women.
Methods
All consecutive consenting pregnant women with symptoms of HF (New York Heart Association functional class [NYHA FC] II–IV), who underwent echocardiography at Groote Schuur Hospital (a tertiary hospital in South Africa) between 1 March 2021 and 15 March 2022 were recruited and compared with asymptomatic pregnant women (NYHA FC I). Demographic and obstetric data were collected, as well as clinical and echocardiographic parameters. POC NT-proBNP was measured; a receiver operating characteristic (ROC) curve was used to determine the level of NT-proBNP that would have the best predictive value for detecting structural heart disease on echocardiography.
Results
We included 121 women with a median age of 31.3 years (IQR 24.9–36.4) and a median gravidity of 3 (2–4), mostly in their third trimester of pregnancy (75.2%). Symptomatic women (66.1%) presented mainly with dyspnoea (92.5%) and fatigue (73.8%). Most common signs of HF were peripheral oedema (46.8%), jugular venous distension (17.7%) and pulmonary crackles (17.7%). Overall, the median POC NT-proBNP was 98pg/ml (60–506) but was not statistically different between symptomatic and asymptomatic participants. However, NT-proBNP levels were significantly elevated in those with left ventricular (LV) dilatation (376 [86–744] vs 65 [60–191], p=0.001), left atrial enlargement (395 [65–744] vs 60 [59–108], p<0.001), LV systolic dysfunction (510 [113–1668] vs 65 [60–210], p<0.001), diastolic dysfunction (300 [77–1450] vs 78 [60–257], p=0.031), mitral regurgitation (167 [60–672] vs 78 [60–243], p=0.038) and pericardial effusion (440 [81–1031] vs 71 [60–243], p=0.011) (Figure 1). An NT-proBNP of <200pg/ml had the highest negative predictive value (83%) to rule out structural heart disease (AUC 0.68 [0.59–0.77]). Patients with NT-proBNP of ≥200pg/ml were at increased risk of having echocardiographic evidence of structural heart disease (diagnostic odds ratio 4.9 [95% confidence interval 2.0–11.7]).
Conclusion
In this cohort of pregnant women with symptoms suggestive of HF, POC NT-proBNP identified those with structural heart disease with acceptable discrimination. POC NT-proBNP testing might be particularly useful as a screening test in settings where pregnant women do not readily have access to echocardiography.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): World Heart Federation Salim Yusuf Emerging Leaders Programme
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Affiliation(s)
- C Viljoen
- University of Cape Town, Division of Cardiology , Cape Town , South Africa
| | - M Al-Naili
- University of Cape Town, Division of Cardiology , Cape Town , South Africa
| | - J J Noubiap
- University of Adelaide, Centre for Heart Rhythm Disorders , Adelaide , Australia
| | - A Jackson
- Cardiovascular Research Centre of Glasgow , Glasgow , United Kingdom
| | - K Hyun
- ANZAC Research Institute, Cardiology Department , Sydney , Australia
| | - A Neves
- Hospital Geral José Macamo, Gynecology and Obstetrics , Maputo , Mozambique
| | - C Nkoke
- Buea Regional Hospital, Department of Internal Medicine , Buea , Cameroon
| | - C Mondo
- St. Francis Hospital Nsambya , Kampala , Uganda
| | - J Nabbaale
- Uganda Heart Institute , Kampala , Uganda
| | - A Dragus
- World Heart Federation , Geneva , Switzerland
| | - P Perel
- World Heart Federation , Geneva , Switzerland
| | - A Banerjee
- World Heart Federation , Geneva , Switzerland
| | - B J Cupido
- University of Cape Town, Division of Cardiology , Cape Town , South Africa
| | - K Sliwa
- University of Cape Town, Cape Heart Institute , Cape Town , South Africa
| | - J Hoevelmann
- University of Cape Town, Cape Heart Institute , Cape Town , South Africa
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9
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Kodogo V, Viljoen C, Chakafana G, Hoevelmann J, Jackson A, Al-Farhan H, Goland S, Tromp J, Van Der Meer P, Karaye K, Kryczka K, Mebazaa A, Bauersachs J, Bell L, Sliwa K. Exploratory proteome profiling in patients with peripartum cardiomyopathy – a biomarker study on the EORP cohort. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The diagnosis of peripartum cardiomyopathy (PPCM) remains challenging as heart failure symptoms may also occur during normal pregnancy. This is further aggravated by the absence of biomarkers specific for diagnosis or prognosis of women with PPCM. Indeed, current evidence from the EURObservational Research Programme (EORP) Registry, an ongoing prospective, international, multicentre, observational registry for women with PPCM, report that the time to diagnosis after symptom onset varies from 19.4 to 38.3 days.
Aims
We performed exploratory serum proteome profiling on patients with PPCM, as compared with healthy postpartum mothers, to uncover novel protein biomarkers that would further our understanding of the pathogenesis of the disease and enhance diagnostic evaluation.
Methods
Demographic and clinical data, as well as serum samples were collected from 84 patients with PPCM from seven EORP participating countries and 29 healthy controls (HC) from South Africa. Serum proteomic profiling was conducted using DIA-based label-free quantitative (LFQ) LC-MS at the time of diagnosis from depleted serum samples. Mass spectrometry data were analyzed by Spectronaut v15 using a study-specific spectral library. Proteomic statistical analysis was performed using Perseus version 2.0.3.0 (FDR=0.05; S=0.1).
Results
Patients with PPCM had advanced heart failure (50% had New York Heart Association functional classes III/IV, mean left ventricular ejection fraction [LVEF] of 33.5%±9.3 [vs 57.0±8.8 in HC, p<0.001]). Amongst the 329 proteins that were identified in the serum samples, 17 proteins were significantly differentially upregulated and 18 downregulated in patients with PPCM as compared to the HC (all p<0.05; Figure 1). Adiponectin (log fold change 1.378, p=0.001), pregnancy-specific beta-1-glycoprotein 1 (1.207, p=0.022), disintegrin metalloproteinase domain-containing protein 12 (1.185, p=0.039), peptidyl-prolyl cis-trans isomerase (1.182, p=0.031) and sulfhydryl oxidase 1 (1.101, p=0.004) were among the upregulated proteins, whilst immunoglobulin kappa variable 2–29 (0.856, p=0.029), ficolin-3 (0.898, p=0.001), platelet basic protein (0.917, p=0.006) and thrombospondin-1 (0.930, p=0.043) were among the downregulated. Gene ontology indicated that thrombospondin receptor activity, fibronectin-binding, and vascular endothelial growth factor receptor 2 binding among the most significant regulated molecular functions. The area under the curve (AUC) of the top 10 up-regulated biomarkers ranged from 0.61–0.68 (p<0.05).
Conclusion
Salient biological themes related to immune response proteins, inflammation, fibrosis, angiogenesis, apoptosis, and blood coagulation were identified to be predominant in PPCM versus HC. This indicates the complex pathophysiological mechanisms of PPCM. The newly identified proteins warrant further studies to evaluate their potential use as diagnostic and prognostic markers for PPCM.
Funding Acknowledgement
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): 1. EurObservational Research Programme in conjunction with the Heart Failure Association of the European Society of Cardiology Study Group on Peripartum Cardiomyopathy2. Cape Heart Institute, University of Cape Town, South Africa
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Affiliation(s)
- V Kodogo
- University of Cape Town, Cape Heart Institute , Cape Town , South Africa
| | - C Viljoen
- University of Cape Town, Division of Cardiology, Department of Medicine , Cape Town , South Africa
| | - G Chakafana
- Stanford University Medical Center , Stanford , United States of America
| | - J Hoevelmann
- University of Cape Town, Cape Heart Institute , Cape Town , South Africa
| | - A Jackson
- Institute of Cardiovascular and Medical Sciences , Glasgow , United Kingdom
| | - H Al-Farhan
- University of Baghdad College of Medicine , Baghdad , Iraq
| | - S Goland
- Hadassah-Hebrew University, Heart Institute, Kaplan Medical Center, Rehovot , Jerusalem , Israel
| | - J Tromp
- University Medical Center Groningen, Department of Cardiology , Groningen , The Netherlands
| | - P Van Der Meer
- University Medical Center Groningen, Department of Cardiology , Groningen , The Netherlands
| | - K Karaye
- Aminu Kano Teaching Hospital, Department of Medicine , Kano , Nigeria
| | - K Kryczka
- Institute of Cardiology in Anin , Warsaw , Poland
| | - A Mebazaa
- Lariboisiere APHP Site of Saint Louis University Hospital, Department of Anesthesiology , Paris , France
| | - J Bauersachs
- Hannover Medical School, 11. Department of Cardiology and Angiology , Hannover , Germany
| | - L Bell
- University of Cape Town, 12. Centre for Proteomic and Genomic Research, Cape Town, South Africa , Cape Town , South Africa
| | - K Sliwa
- University of Cape Town, Cape Heart Institute , Cape Town , South Africa
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10
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Hoevelmann J, Engel ME, Muller E, Hohlfeld A, Böhm M, Sliwa K, Viljoen C. A global perspective on the management and outcomes of peripartum cardiomyopathy: a systematic review and meta-analysis. Eur J Heart Fail 2022; 24:1719-1736. [PMID: 35778990 DOI: 10.1002/ejhf.2603] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 06/03/2022] [Accepted: 06/25/2022] [Indexed: 11/10/2022] Open
Abstract
AIMS Peripartum cardiomyopathy (PPCM) remains a major contributor to maternal morbidity and mortality worldwide. The disease is associated with various complications occurring mainly early during its course. Reported adverse outcomes include decompensated heart failure, thromboembolic complications, arrhythmias and death. We sought to systematically and comprehensively review published literature on the management, and outcome of women with PPCM across different geographical regions and to identify possible predictors of adverse outcomes. METHODS AND RESULTS We performed a comprehensive search of relevant literature (2000 to June 2021) across a number of electronic databases. Cohort, case-control and cross-sectional studies, as well as control arms of randomised controlled trials reporting on six- and/or twelve-month outcomes of PPCM were considered eligible (PROSPERO registration: CRD42021255654). Forty-seven studies (4875 patients across 60 countries) met the inclusion criteria. Haemodynamic and echocardiographic parameters were similar across all continents. All-cause mortality was 8.0% [95% CI 5.5-10.8, I2 =79.1%) at six months and 9.8% [95% CI 6.2-14.0], I2 =80.5%) at twelve months, respectively. All-cause mortality was highest in Africa and Asia/Pacific. Overall, 44.1% ([95% CI 36.1-52.2], I2 =91.7%) of patients recovered their LV function within six months and 58.7% ([95% CI 48.1-68.9], I2 =75.8%) within twelve months, respectively. Europe and North America reported the highest prevalence of LV recovery. Frequent prescription of beta-blocker, ACE-I/ARB and bromocriptine/cabergoline were associated with significantly lower all-cause mortality and better LV recovery. CONCLUSION We identified significant global differences in six- and twelve-month outcomes in women with PPCM. Frequent prescription of guideline-directed heart failure therapy was associated with better LV recovery and lower all-cause mortality. Timely initiation and up-titration of heart failure therapy should therefore be strongly encouraged to improve outcome in PPCM. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Julian Hoevelmann
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Saarland University Hospital, Homburg (Saar), Deutschland
| | - Mark E Engel
- Division of Cardiology, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Elani Muller
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Ameer Hohlfeld
- South African Medical Research Council, Cape Town, South Africa
| | - Michael Böhm
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Saarland University Hospital, Homburg (Saar), Deutschland
| | - Karen Sliwa
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Charle Viljoen
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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11
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Lilien C, Baranello G, Coratti G, Edel L, Germanenko O, Krstic M, Mazurkiewicz-Bełdzińska M, Ray S, Shatillo A, Taytard J, Vlodavets D, Vuillerot C, Cruz L, Tachibana G, Viljoen C, Servais L. SMA – OUTCOME MEASURES AND REGISTRIES. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Affiliation(s)
- Charle Viljoen
- Cardiology, University of Cape Town, Cape Town, South Africa
| | - Karen Sliwa
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Ashley Chin
- University of Cape Town, Cape Town, South Africa
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13
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Mbakwem AC, Bauersachs J, Viljoen C, Hoevelmann J, van der Meer P, Petrie MC, Mebazaa A, Goland S, Karaye K, Laroche C, Sliwa K. Electrocardiographic features and their echocardiographic correlates in peripartum cardiomyopathy: results from the ESC EORP PPCM registry. ESC Heart Fail 2021; 8:879-889. [PMID: 33453082 PMCID: PMC8006717 DOI: 10.1002/ehf2.13172] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 11/06/2020] [Accepted: 12/03/2020] [Indexed: 12/17/2022] Open
Abstract
AIMS In peripartum cardiomyopathy (PPCM), electrocardiography (ECG) and its relationship to echocardiography have not yet been investigated in large multi-centre and multi-ethnic studies. We aimed to identify ECG abnormalities associated with PPCM, including regional and ethnic differences, and their correlation with echocardiographic features. METHODS AND RESULTS We studied 411 patients from the EURObservational PPCM registry. Baseline demographic, clinical, and echocardiographic data were collected. ECGs were analysed for rate, rhythm, QRS width and morphology, and QTc interval. The median age was 31 [interquartile range (IQR) 26-35] years. The ECG was abnormal in > 95% of PPCM patients. Sinus tachycardia (heart rate > 100 b.p.m.) was common (51%), but atrial fibrillation was rare (2.27%). Median QRS width was 82 ms [IQR 80-97]. Left bundle branch block (LBBB) was reported in 9.30%. Left ventricular (LV) hypertrophy (LVH), as per ECG criteria, was more prevalent amongst Africans (59.62%) and Asians (23.17%) than Caucasians (7.63%, P < 0.001) but did not correlate with LVH on echocardiography. Median LV end-diastolic diameter (LVEDD) was 60 mm [IQR 55-65] and LV ejection fraction (LVEF) 32.5% [IQR 25-39], with no significant regional or ethnic differences. Sinus tachycardia was associated with an LVEF < 35% (OR 1.85 [95% CI 1.20-2.85], P = 0.006). ECG features that predicted an LVEDD > 55 mm included a QRS complex > 120 ms (OR 11.32 [95% CI 1.52-84.84], P = 0.018), LBBB (OR 4.35 [95% CI 1.30-14.53], P = 0.017), and LVH (OR 2.03 [95% CI 1.13-3.64], P = 0.017). CONCLUSIONS PPCM patients often have ECG abnormalities. Sinus tachycardia predicted poor systolic function, whereas wide QRS, LBBB, and LVH were associated with LV dilatation.
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Affiliation(s)
- Amam C Mbakwem
- Department of Medicine, College of Medicine, University of Lagos, Idi Araba, Lagos, Nigeria
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - Charle Viljoen
- Division of Cardiology, Department of Medicine, University of Cape Town, Cape Town, South Africa.,Hatter Institute for Cardiovascular Research in Africa and Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Julian Hoevelmann
- Hatter Institute for Cardiovascular Research in Africa and Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Saarland University Hospital, Homburg/Saar, Germany
| | - Peter van der Meer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Mark C Petrie
- Institute of Cardiovascular & Medical Sciences, University of Glasgow, Glasgow, UK
| | - Alexandre Mebazaa
- UMR 942 Inserm - MASCOT; University of Paris; Department of Anesthesia-Burn-Critical Care, APHP Saint Louis Lariboisière University Hospitals, Paris, France
| | - Sorel Goland
- Department of Cardiology, Hebrew University and Hadassah Medical School, Jerusalem, Israel
| | - Kamilu Karaye
- Department of Cardiology, Bayero University, Kano, Nigeria
| | - Cécile Laroche
- ESC, EURObservational Research Programme, Sophia-Antipolis, France
| | - Karen Sliwa
- Division of Cardiology, Department of Medicine, University of Cape Town, Cape Town, South Africa.,Hatter Institute for Cardiovascular Research in Africa and Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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14
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Abstract
Anterior ST-segment depression encompasses important differential diagnoses, including ST-segment elevation myocardial infarction, non-ST-segment elevation myocardial infarction and pulmonary embolism. Diagnostic accuracy is crucial, as this has important therapeutic implications. This ECG case report reviews the electrocardiographic changes seen in patients with chest pain and anterior ST-segment depression.
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Affiliation(s)
- Lina Hähnle
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa
| | - Charle Viljoen
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa; Division of Cardiology, University of Cape Town, Cape Town, South Africa.
| | - Julian Hoevelmann
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa; Department of Internal Medicine III, Klinik Für Innere Medizin III, Kardiologie, Angiologie, Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Saarland University, Homburg, Germany
| | - Robert Gill
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Ashley Chin
- Division of Cardiology, University of Cape Town, Cape Town, South Africa
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15
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Abstract
Peripartum cardiomyopathy (PPCM) is an idiopathic dilated cardiomyopathy, in which previously healthy women present with heart failure secondary to left ventricular (LV) systolic dysfunction during the last months of pregnancy or up to 5 months postpartum. PPCM occurs worldwide. The incidence seems to be increasing, possibly due to increasing awareness of the condition and diagnosis thereof. Women diagnosed with PPCM present with symptoms and signs of heart failure, thromboembolism or arrhythmia. Although the incidence of arrhythmias in this condition is not well documented, patients with PPCM often have rhythm disturbances. Indeed, life-threating arrhythmias contribute significantly to sudden cardiac death (SCD) in this population, especially when patients have poor systolic function. In this review, we summarize the evidence on atrial and ventricular arrhythmias in PPCM, as detected by various diagnostic modalities. Furthermore, we summarize the management of arrhythmias in PPCM, as recommended by contemporary guidelines.
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Affiliation(s)
- Julian Hoevelmann
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa.,Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - Lina Hähnle
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa
| | - Julia Hähnle
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa
| | - Karen Sliwa
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa.,Division of Cardiology, University of Cape Town, Cape Town, South Africa
| | - Charle Viljoen
- Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa.,Division of Cardiology, University of Cape Town, Cape Town, South Africa
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16
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Sliwa K, Azibani F, Johnson MR, Viljoen C, Baard J, Osman A, Briton O, Ntsekhe M, Chin A. Effectiveness of Implanted Cardiac Rhythm Recorders With Electrocardiographic Monitoring for Detecting Arrhythmias in Pregnant Women With Symptomatic Arrhythmia and/or Structural Heart Disease: A Randomized Clinical Trial. JAMA Cardiol 2020; 5:458-463. [PMID: 32074256 PMCID: PMC7042843 DOI: 10.1001/jamacardio.2019.5963] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 12/01/2019] [Indexed: 12/21/2022]
Abstract
Importance Arrhythmias are an important cause of maternal morbidity and mortality but remain difficult to diagnose. Objective To compare implantable loop recorder (ILR) plus 24-hour Holter electrocardiographic (ECG) monitoring with standard 24-hour Holter ECG monitoring alone in terms of acceptability, ability to identify significant arrythmias, and effect on management and pregnancy outcome in women who were symptomatic or at high risk of arrythmia because of underlying structural heart disease. Design, Setting, and Participants This single-center, prospective randomized clinical trial recruited 40 consecutive patients from the Cardiac Disease and Maternity Clinic at Groote Schuur Hospital in Cape Town, South Africa. Pregnant patients with symptoms of arrhythmia and/or structural heart disease at risk of arrhythmia were included. Intervention Patients were randomized to standard care (SC; 24-hour Holter ECG monitoring [n = 20]) or standard care plus ILR (SC-ILR; 24-hour Holter ECG monitoring plus ILR [n = 20]). Only 17 consented to ILR insertion, and the 3 who declined ILR were allocated to the SC group. Main Outcomes and Measures Arrhythmias considered included atrial fibrillation, atrial flutter, premature ventricular complexes, supraventricular tachycardia, ventricular tachycardia, or ventricular fibrillation. Results Among the 40 women in this trial, the mean (SD) age was 28.4 (5.5) years. Holter monitoring detected arrhythmias in 3 of 23 patients (13%) in the SC group and 4 of 17 patients (24%) in the SC-ILR group compared with 9 of 17 patients (53%) patients who had arrhythmias detected by ILR. Seven patients (4 with supraventricular tachycardia, 1 with premature ventricular complexes, and 2 with paroxysmal atrial fibrillation recorded by ILR) did not have arrhythmias detected by 24-hour Holter monitoring. Three of these 7 patients (43%) had a change in management as a result of their ILR recordings. There were no maternal deaths. However, the SC group had a significantly lower mean (SD) gestational stage at delivery (35 [5] weeks vs 38 [2], P = .04). Conclusions and Relevance The ILR was better than 24-hour Holter monitoring in detecting arrhythmias, which led to a change in management for a significant proportion of patients. Our findings suggest that ILR may be beneficial for pregnant women at risk of arrhythmia. Trial Registration ClinicalTrials.gov Identifier: NCT02249195.
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Affiliation(s)
- Karen Sliwa
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Feriel Azibani
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Mark R. Johnson
- Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Charle Viljoen
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Johann Baard
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Ayesha Osman
- Division of Obstetrics and Gynecology, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Olivia Briton
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Mpiko Ntsekhe
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Ashley Chin
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
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17
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Viljoen C, Dladla K, Francis I, Wainwright H, Meintjes G. A Diffuse Fine Papular and Pustular Rash in a Man With Advanced Human Immunodeficiency Virus and Diabetes. Clin Infect Dis 2020; 66:477-478. [PMID: 29361018 PMCID: PMC5850318 DOI: 10.1093/cid/cix710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Charle Viljoen
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, South Africa
| | - Khanyisile Dladla
- Division of Dermatology, Groote Schuur Hospital and University of Cape Town, South Africa
| | - Innocent Francis
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, South Africa
| | - Helen Wainwright
- Division of Anatomical Pathology, National Health Laboratory Service, Groote Schuur Hospital and University of Cape Town, South Africa
| | - Graeme Meintjes
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, South Africa
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18
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Asukile M, Viljoen C, Pan EL, Eastman R, Tucker L. Online EEG teaching – Identifying the most effective and preferred learning methods on a web-based EEG training course. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mbakwem AC, Bauersachs J, Viljoen C, Van Der Meer P, Petrie M, Mebazaa A, Goland S, Karaye K, Hovelmann J, Sliwa K. 2371Electrocardiographic features and their echocardiographic correlates in peripartum cardiomyopathy based on the EURObservational registry on PPCM. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Cardiac disease remains an important cause of maternal morbidity and mortality globally. Peripartum cardiomyopathy (PPCM), defined as heart failure secondary to left ventricular (LV) systolic dysfunction in previously healthy women towards the end of pregnancy or up to five months following delivery, can result in cardiogenic shock due to severe LV dysfunction or arrhythmias leading to sudden cardiac death. Cardiac electrical activity and its relationship to cardiac dysfunction have not yet been interrogated in large multi-centre studies.
Purpose
This study aimed to identify the ECG abnormalities associated with PPCM; their relationship with echocardiographic structural and functional abnormalities and explore regional and ethnic differences in ECG features.
Methods
We included the first 411 patients enrolled into the EURObservational PPCM registry (EORP). Baseline demographic, clinical and echocardiographic data were collected. ECGs were analysed for rate; rhythm; QRS width, axis and morphology; and QTc interval.
Results
Mean age of the women (from >40 countries) was 30.7±6.4 years. More than two thirds of patients presented with NYHA class III or IV (with no regional differences). The median QRS rate was 102bpm (IQR 87–117). More than half presented with sinus tachycardia (QRS rate >100bpm), whereas atrial fibrillation was rare (2.27%). The mean QRS width was 90.1ms ±21.5, with regional differences (ESC 93.8ms ±21.7 vs. non-ESC 86.8ms ±20.8, P<0.001). Left bundle branch block (LBBB) was reported in 9.30% with no regional or ethnic differences. Left ventricular hypertrophy (LVH) was present in a quarter of the cohort, and more prevalent amongst African (59.62%) and Asian (23.17%) than Caucasians (7.63%, P<0.001). The median QTc by Bazett was 456.7ms (IQR 409–490.7) and almost half (47.11%) had prolonged QTc (>460ms). The median LVEDD was 60mm (IQR 55–65) on echocardiography. Compared with their Asian and Caucasian counterparts, African patients were more likely to have LV dilatation (LVEDD>53mm: 70.11%, 79.31% and 89.42% respectively; P=0.004). The median LV ejection fraction (LVEF) was 32.50% (IQR 25–39) with no significant regional or ethnic differences. Sinus tachycardia predicted poor systolic function (OR 1.85 [95% CI 1.20–2.85], p=0.006). LVEF <35% was associated with a significantly higher QRS rate (median rate 107 vs. 98bpm, p=0.002). Women with LVEDD ≥53mm had a longer mean QRS duration (92.0±22.4 vs. 82.4±15.4ms, p<0.001) and frequency of LBBB (11.15% vs 1.54%, p=0.016). LBBB was a predictor of LVEDD >53mm (sensitivity 11.15%; specificity 98.46%; PPV 97.14%; NPV 19.10%; OR 8.02 [95% CI 1.08–59.66], p=0.042).
Conclusion
Patients with PPCM commonly present with sinus tachycardia, LVH, and/or prolonged QTc interval on their ECG. Wide QRS and/or LBBB, were associated with LVEDD>53mm. Sinus tachycardia, however, was associated with LVEF<35%. Risk of arrhythmia in those with prolonged QTc remains to be ascertained.
Acknowledgement/Funding
Heart Failure Association of the ESC
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Affiliation(s)
| | | | - C Viljoen
- University of Cape Town, Cardiology, Cape Town, South Africa
| | - P Van Der Meer
- University Medical Center Groningen, Cardiology and Thorax, Groningen, Netherlands (The)
| | - M Petrie
- Golden Jubilee National Hospital, Glasgow, United Kingdom
| | - A Mebazaa
- Hospital Lariboisiere, Anaesthesia and Critical care, Paris, France
| | - S Goland
- Hadassah-Hebrew University, Cardiology, Jerusalem, Israel
| | - K Karaye
- Aminu Kano Teaching Hospital, Cardiology, Kano, Nigeria
| | - J Hovelmann
- University of Cape Town, Cardiology, Cape Town, South Africa
| | - K Sliwa
- University of Cape Town, Cardiology, Cape Town, South Africa
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Viljoen C, Schoeman M, Brandt C, Patricios J, Van Rooyen C. Concussion knowledge and attitudes among amateur South African rugby players. S Afr j sports med 2017. [DOI: 10.17159/2078-516x/2017/v29i1a2993] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: The South African Rugby Union’s BokSmart programme currently educates coaches and referees on concussion. Rugby players are often more familiar with their teammates than the coach or referee. Therefore they are well-positioned to play a pivotal role in rugby safety if they have adequate knowledge to identify subtle signs and abnormal behaviour displayed by a concussed teammate. However, no programme focuses on concussion education among South African rugby players and there is a dearth of literature on concussion education programmes among rugby players which could lead to safer return to play (RTP) habits.Objectives: To evaluate South African rugby players’ concussion knowledge and attitudes/behaviours regarding RTP following a concussion.Methods: A descriptive, cross-sectional study was used. Participants (n=294) were divided into junior amateur high school (JAHS) (n=216) and senior amateur club (SAC) (n=78) players. The modified RoCKAS-ST questionnaire was used to evaluate their concussion knowledge index (CKI) and concussion attitudes/behaviours index (CAI) regarding RTP.Results: On average, 62% (JAHS) and 60% (SAC) of the CKI questions were answered correctly. JAHS participants correctly identified 66% of concussion symptoms, similarly to the SAC participants (63%), rendering similar (p=0.37) overall CKI scores when comparing the two groups. The CAI questions yielded similar (p=0.98) results between the groups, reporting safe responses in 66% (JAHS) and 67% (SAC) of the items.Discussion and conclusion: Junior and senior South African amateur rugby players lacked approximately one-third of essential concussion knowledge, which may lead to a display of unsafe attitudes/behaviours to concussion and RTP. Further research is warranted to inform educational programmes on concussion among rugby players.
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Viljoen C, Schoeman M, Brandt C, Patricios J, Van Rooyen C. Concussion knowledge and attitudes among amateur South African rugby players. SA J Sports Med 2017. [DOI: 10.17159/2078-516x/2017/v29i0a1942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: The South African Rugby Union’s BokSmart programme currently educates coaches and referees on concussion. Rugby players are often more familiar with their teammates than the coach or referee. Therefore they are well-positioned to play a pivotal role in rugby safety if they have adequate knowledge to identify subtle signs and abnormal behaviour displayed by a concussed teammate. However, no programme focuses on concussion education among South African rugby players and there is a dearth of literature on concussion education programmes among rugby players which could lead to safer return to play (RTP) habits.Objectives: To evaluate South African rugby players’ concussion knowledge and attitudes/behaviours regarding RTP following a concussion.Methods: A descriptive, cross-sectional study was used. Participants (n=294) were divided into junior amateur high school (JAHS) (n=216) and senior amateur club (SAC) (n=78) players. The modified RoCKAS-ST questionnaire was used to evaluate their concussion knowledge index (CKI) and concussion attitudes/behaviours index (CAI) regarding RTP.Results: On average, 62% (JAHS) and 60% (SAC) of the CKI questions were answered correctly. JAHS participants correctly identified 66% of concussion symptoms, similarly to the SAC participants (63%), rendering similar (p=0.37) overall CKI scores when comparing the two groups. The CAI questions yielded similar (p=0.98) results between the groups, reporting safe responses in 66% (JAHS) and 67% (SAC) of the items.Discussion and conclusion: Junior and senior South African amateur rugby players lacked approximately one-third of essential concussion knowledge, which may lead to a display of unsafe attitudes/behaviours to concussion and RTP. Further research is warranted to inform educational programmes on concussion among rugby players.
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Abstract
The electrocardiographic term 'pause' refers to the prolonged R-R interval that represents the interruption in ventricular depolarisation. This article presents a case of sinus node dysfunction and provides a diagnostic approach to pauses on the ECG.
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Affiliation(s)
- Charle Viljoen
- Division of Cardiology, Groote Schuur Hospital and the University of Cape Town, South Africa.
| | - Robert Smith
- Department of Medicine, Groote Schuur Hospital and the University of Cape Town, South Africa
| | - Ashley Chin
- Division of Cardiology, Groote Schuur Hospital and the University of Cape Town, South Africa
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Chin A, Ntsekhe M, Viljoen C, Rossouw J, Pennel T, Schwartz PJ. Rationale and design of a prospective study to assess the effect of left cardiac sympathetic denervation in chronic heart failure. Int J Cardiol 2017; 248:227-231. [PMID: 28864134 DOI: 10.1016/j.ijcard.2017.08.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 08/04/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND The main causes of mortality in patients with chronic heart failure include sudden cardiac death (SCD) and progressive heart failure. Autonomic dysfunction plays a detrimental role in the progression of chronic heart failure. Left cardiac sympathetic denervation (LCSD) is an inexpensive and safe procedure which modifies autonomic innervation of the heart and is associated with a significant antifibrillatory effect. Whether LCSD reduces the risk of SCD, delays progression of heart failure and improves quality of life in patients with heart failure with reduced ejection fraction (HFrEF) is not known. METHODS AND DESIGN This is a 2-phased prospective, randomized trial to test the efficacy and safety of LCSD as an adjunct to guideline recommended medical therapy for patients with HFrEF. Once the safety and feasibility of conducting a large LCSD study have been demonstrated in the pilot phase, a phase III efficacy trial to assess the impact on ventricular arrhythmias, heart failure outcomes, and mortality will be completed. Outcome data from the pilot study will remain blinded and added to the results of phase III study for analysis. RESULTS To date the study has received approval from local and national ethics and regulatory bodies and recruitment has commenced, and 4 patients have been randomized so far. CONCLUSION If LCSD is proven to be safe, feasible and effective in this first ever study using this novel approach in patients with HFrEF it may be a cost-effective alternative to the implantable cardioverter defibrillator therapy especially in regions where ICDs and cardiac transplantation are unavailable.
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Affiliation(s)
- Ashley Chin
- Division of Cardiology, Department of Medicine, University of Cape Town, Groote Schuur Hospital, Cape Town, South Africa
| | - Mpiko Ntsekhe
- Division of Cardiology, Department of Medicine, University of Cape Town, Groote Schuur Hospital, Cape Town, South Africa
| | - Charle Viljoen
- Division of Cardiology, Department of Medicine, University of Cape Town, Groote Schuur Hospital, Cape Town, South Africa
| | - Johan Rossouw
- Christiaan Barnard Division of Cardiothoracic Surgery, Faculty of Health Sciences, University of Cape Town, 7925, Observatory, Cape Town, South Africa
| | - Tim Pennel
- Christiaan Barnard Division of Cardiothoracic Surgery, Faculty of Health Sciences, University of Cape Town, 7925, Observatory, Cape Town, South Africa
| | - Peter J Schwartz
- Division of Cardiology, Department of Medicine, University of Cape Town, Groote Schuur Hospital, Cape Town, South Africa; IRCCS Istituto Auxologico Italiano, Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics, Milan, Italy.
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Viljoen C, Szymanski P, Osman N, Henning KL, Scholtz P, Rayner B, Naidoo N. Intimomedial mucoid degeneration causing aortic and renal artery aneurysms in a young adult. Cardiovasc J Afr 2016; 27:49-52. [PMID: 26956498 PMCID: PMC4817203 DOI: 10.5830/cvja-2015-079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 10/04/2015] [Indexed: 11/23/2022] Open
Abstract
Intimomedial mucoid degeneration (IMMD) is characterised by aneurysm formation following mucin deposition in the intima and media, with elastic tissue degeneration of the arterial wall. We present a case of a young adult who developed a diffusely aneurysmal aorta and its major branches, which was histopathologically confirmed as intimomedial mucoid degeneration, and a review of the literature. This case report attempts to raise the awareness of the reader to this rare cause of aortic aneurysm and to the bleeding diathesis associated with IMMD that may complicate surgery.
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Affiliation(s)
- Charle Viljoen
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, South Africa.
| | - Patryk Szymanski
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, South Africa
| | - Naeem Osman
- Division of Anatomical Pathology, National Health Laboratory Service, Groote Schuur Hospital and University of Cape Town, South Africa
| | | | - Paul Scholtz
- Division of Radiology, Groote Schuur Hospital and University of Cape Town, South Africa
| | - Brian Rayner
- Division of Nephrology and Hypertension, Groote Schuur Hospital and University of Cape Town, South Africa
| | - Nadraj Naidoo
- Division of Vascular Surgery, Groote Schuur Hospital and University of Cape Town
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Scriven J, Cirota J, Viljoen C, Black M, Meintjes G. MRSA bacteraemia complicating amphotericin B treatment of cryptococcal meningitis. South Afr J HIV Med 2013. [DOI: 10.4102/sajhivmed.v14i3.70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Intravenous amphotericin B is a key component of the antifungal therapy for cryptococcal meningitis recommended in South African and international guidelines. Unfortunately, its use is associated with significant toxicity including deterioration in renal function, electrolyte disturbance, anaemia and infusion reactions. Chemical phlebitis is common following administration via peripheral cannulae. This can be complicated by bacterial infection, resulting in localised cellulitis or bacterial sepsis. Here we describe two patients with cryptococcal meningitis who developed methicillin-resistant Staphylococcus aureus (MRSA) bacteraemia during, or shortly after treatment with amphotericin B. These cases illustrate the dangers of line-related sepsis in hospitalised individuals and some of the difficulties encountered during treatment of this condition.
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Kedda MA, Stevens G, Manga P, Viljoen C, Jenkins T, Ramsay M. The tyrosinase-positive oculocutaneous albinism gene shows locus homogeneity on chromosome 15q11-q13 and evidence of multiple mutations in southern African negroids. Am J Hum Genet 1994; 54:1078-84. [PMID: 8198130 PMCID: PMC1918206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Tyrosinase-positive oculocutaneous albinism (ty-pos OCA) is an autosomal recessive disorder of the melanin pigmentary system. South African ty-pos OCA individuals occur with two distinct phenotypes, with or without darkly pigmented patches (ephelides, or dendritic freckles) on exposed areas of the skin. These phenotypes are concordant within families, suggesting that there may be more than one mutation at the ty-pos OCA locus. Linkage studies carried out in 41 families have shown linkage between markers in the Prader-Willi/Angelman syndrome (PWS/AS) region on chromosome 15q11-q13 and ty-pos OCA. Analysis showed no obligatory crossovers between the alleles at the D15S12 locus and ty-pos OCA, suggesting that the D15S12 locus is very close to or part of the disease locus, which is postulated to be the human homologue, P, of the mouse pink-eyed dilution gene, p. Unlike caucasoid "ty-pos OCA" individuals, negroid ty-pos OCA individuals do not show any evidence of locus heterogeneity. Studies of allelic association between the polymorphic alleles detected at the D15S12 locus and ephelus status suggest that there was a single major mutation giving rise to ty-pos OCA without ephelides. There may, however, be two major mutations causing ty-pos OCA with ephelides, one associated with D15S12 allele 1 and the other associated with D15S12 allele 2. The two loci, GABRA5 and D15S24, flanking D15S12, are both hypervariable, and many different haplotypes were observed with the alleles at the three loci on both ty-pos OCA-associated chromosomes and "normal" chromosomes.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- M A Kedda
- Department of Human Genetics, School of Pathology, South African Institute for Medical Research, Johannesburg
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Bowcock AM, Barnes RI, White RL, Kruse TA, Tsipouras P, Sarfarazi M, Jenkins T, Viljoen C, Litt M, Kramer PL. The CEPH consortium linkage map of human chromosome 15q. Genomics 1992; 14:833-40. [PMID: 1478662 DOI: 10.1016/s0888-7543(05)80101-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The CEPH consortium map of chromosome 15q is presented. The map contains 41 loci defined by genotypes generated from CEPH family DNAs with 45 different probe and restriction enzyme combinations contributed by 10 laboratories. A total of 29 loci have been placed on the map with likelihood support of at least 1000:1. The map extends from 15q13 to 15q25-qter. Multipoint linkage analyses provided estimates that the male, female, and sex-averaged maps extend for 127, 190, and 158 cM, respectively. The largest interval is 21 cM and is between D15S37 and D15S74. The on-average locus spacing is 5.6 cM and the mean genetic distance between the 21 uniquely placed loci is 8 cM.
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Affiliation(s)
- A M Bowcock
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas 75235-9063
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