Abstract:
BACKGROUND:Recent studies have shown that the Tp-e interval, which on an electrocardiogram (ECG) is the interval between the peak and the end of the T wave, can be used as an index of transmural dispersion of ventricular repolarisation (TDR). Both Tp-e/QT and Tp-e/QTc ratios have also been used in that capacity. However, these novel repolarisation indices have not previously been studied in children with acute rheumaticcarditis (ARC). METHODS:A hundred and thirty-nine children who were diagnosed with ARC and 153 age- and gender-matched healthy controls were retrospectively reviewed. Twelve-lead ECGs were used to evaluate P-wave, QT and QTc dispersions, Tp-e interval, and Tp-e/QT and Tp-e/QT ratios. RESULTS:The mean age of the patients was 10.9 ± 2.4 years. The P-wave, QT and QTc dispersions were significantly higher in patients compared to the healthy control subjects. The Tp-e interval, and Tp-e/QT and Tp-e/QTc ratios were also significantly increased in patients compared to the controls. When the patients were compared in terms of either one- or two-valve involvement, we found no difference between the groups regarding P-wave, QTd and QTc dispersions, Tp-e interval, and Tp-e/QT and Tp-e/QT c ratios. There was no correlation between acute-phase reactants, white blood cell count and these repolarisation parameters. CONCLUSIONS:This study showed that the new transmural dispersion of ventricular repolarisation parameters, Tp-e interval, Tp-e/QT ratios and QTd were increased in children with ARC. Prolongation of the Tp-e interval and an increased Tp-e/QT ratio might be useful markers for predicting myocardial involvement in children with ARC.
journal_name
Cardiovasc J Afrjournal_title
Cardiovascular journal of Africaauthors
Kucuk M,Karadeniz C,Ozdemir R,Meşe Tdoi
10.5830/CVJA-2018-043subject
Has Abstractpub_date
2018-11-01 00:00:00pages
362-365issue
6eissn
1995-1892issn
1680-0745journal_volume
29pub_type
杂志文章abstract::Pulmonary hypertension (PH) has progressively moved from an orphan disease to a significant global health problem with a major disease burden in limited7hyphen;resource countries, where over 97% of patients live. The aetiologies of PH differ between high- and low-income nations, but PH due to left heart disease is cre...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,评审
doi:10.5830/CVJA-2018-042
更新日期:2019-01-01 00:00:00
abstract::Acute type II aortic dissection and aortic coarctation are rare combined disorders. This report is of a patient with coarctation, a bicuspid aortic valve and type II dissection, who underwent emergency repair for the dissection, with aortic valve preservation. Repair of the coarctation was planned for a future occasio...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2013-064
更新日期:2013-09-23 00:00:00
abstract::Surgical repair or replacement of the mitral valve is currently the only recommended therapy for severe primary mitral regurgitation. The chronic elevation of wall stress caused by the resulting volume overload leads to structural remodelling of the muscular, vascular and extracellular matrix components of the myocard...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,评审
doi:10.5830/CVJA-2017-009
更新日期:2018-01-01 00:00:00
abstract::This review discusses the 1987 article by Wyndham, Seftel, Pilcher and Baker on familial hypercholesterolaemia (FH) and myocardial infarction (MI) in young Afrikaners, in terms of the significance at the time of publication, as well as the relevance of their findings versus current observations on hypercholesterolaemi...
journal_title:Cardiovascular journal of Africa
pub_type: 历史文章,杂志文章
doi:
更新日期:2009-01-01 00:00:00
abstract::We present a case of the native valve used to complete closure of a ruptured aneurysm of the sinus of Valsalva. Aneurysm of the sinus of Valsalva is rare and a non-coronary artery is affected in only 20% of cases. To close the rupture, we decided to use a non-coronary leaflet in a young patient with moderate aortic st...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2014-020
更新日期:2014-08-23 00:00:00
abstract:BACKGROUND:The South African National Development Plan (SANDP) vision for 2030 highlights key recommendations for reducing the prevalence of non-communicable diseases (NCDs) by 28% by 2030. These are mirrored by the World Heart Federation, although it focuses on reducing the NCD prevalence by 25% by 2025. The targeted ...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2018-059
更新日期:2019-01-01 00:00:00
abstract:INTRODUCTION:Rheumatic heart disease (RHD) continues to cause gross distortions of the heart and the associated complications of heart failure and thromboembolic phenomena in this age of numerous high-efficacy drugs and therapeutic interventions. Due to the lack of contemporary local data, there is no national strategy...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2012-076
更新日期:2013-03-01 00:00:00
abstract::Coronavirus disease 2019 (COVID-19) is a recently recognised pandemic spreading rapidly from Wuhan, Hubei, to other provinces in China and to many countries around the world. The number of COVID-19-related deaths is steadily increasing. Acute ST-segment elevation myocardial infarction (STEMI) is a disease with high mo...
journal_title:Cardiovascular journal of Africa
pub_type:
doi:10.5830-CVJA-2020-016
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:Pulmonary embolism (PE) is a potentially fatal disease. In Angola, few data are available on its occurrence. The aim of the study was to characterise the clinical profile, management and outcomes of patients with PE. METHODS:A retrospective observational study was conducted at the Girassol Clinic in Luanda, ...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2017-017
更新日期:2017-11-01 00:00:00
abstract:INTRODUCTION:The functional significance of coronary artery collateral (CAC) vasculature in humans has been debated for decades and this has been compounded by the lack of a standard, systematic, objective method of grading and documenting CAC flow in man. CACs serve as alternative conduits for blood in obstructive cor...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2016-054
更新日期:2017-03-01 00:00:00
abstract:INTRODUCTION:Coronary artery bypass grafting (CABG) results in higher morbidity and mortality rates in end-stage renal disease (ESRD) patient populations than in patients with normal renal function. This study aimed to identify the early results of CABG performed on ESRD patients, and the factors that affected the mort...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2016-066
更新日期:2017-03-01 00:00:00
abstract:INTRODUCTION:A coronary artery anomaly precludes the use of a trans-annular patch in right ventricular outflow tract (RVOT) reconstruction. Herein we present three patients with coronary artery anomalies who underwent total corrective operations without using a conduit. METHODS:Between 2007 and 2010, 84 patients with ...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2011-004
更新日期:2012-03-12 00:00:00
abstract:BACKGROUND:Cardiac complications of human immunodeficiency virus (HIV) infection are important causes of morbidity and mortality. We set out to determine the electrocardiographic (ECG) abnormalities in treatment-naïve HIV-positive patients in Enugu, south-east Nigeria. METHODS:This was a cross-sectional study involvin...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2017-013
更新日期:2017-09-01 00:00:00
abstract:BACKGROUND:Guidelines advise early angiography in non-ST elevation myocardial infarction (NSTEMI) to ensure an optimal outcome. Resource limitations in secondary hospitals in the Western Cape dictate a local guideline to treat NSTEMIs medically with out-patient assessment for angiography, unless mandatory indications f...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,多中心研究
doi:10.5830/CVJA-2013-017
更新日期:2013-05-01 00:00:00
abstract::We present the case of a 57-year-old female who experienced iatrogenic left main-stem (LMS) dissection during elective coronary angiography. The dissection immediately affected the circumflex artery (Cx), causing its total distal occlusion, and the left anterior descending artery (LAD), in which a metal stent, implant...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2015-060
更新日期:2015-11-23 00:00:00
abstract::Resistant hypertension is a common clinical problem in South Africa and is frequently associated with low renin and aldosterone levels, especially in black Africans. In South Africa, novel variants in the epithelial sodium channel (ENaC) have been described to be associated with varying degrees of hypokalaemia and hyp...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2017-012
更新日期:2017-09-23 00:00:00
abstract::Type 2 diabetic patients treated with statins but still experiencing elevated serum levels of triglycerides (2.3 mmol/l or higher) and low HDL cholesterol (0.8 mmol/l or lower), a pre-specified subgroup, benefited from the addition of fenofibrate to their treatment regimen. Risk of cardiovascular events was reduced by...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:
更新日期:2010-03-01 00:00:00
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. ...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2017-041
更新日期:2017-07-01 00:00:00
abstract::Cardiovascular disease (CVD) is the frontrunner in the disease spectrum of sub-Saharan Africa, with stroke and ischaemic heart disease ranked seventh and 14th as leading causes of death, respectively, on this sub-continent. Unfortunately, this region is also grappling with many communicable, maternal, neonatal and nut...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,评审
doi:10.5830/CVJA-2016-082
更新日期:2017-07-01 00:00:00
abstract:INTRODUCTION:Growing evidence has demonstrated that diastolic heart failure occurs in about half of heart failure (HF) patients. We investigated the effects of perindopril on echocardiographic parameters, New York Heart Association (NYHA) functional class and serum N-terminal pro B-type natriuretic peptide (NT-proBNP) ...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,随机对照试验
doi:10.5830/CVJA-2019-022
更新日期:2019-07-01 00:00:00
abstract::This study examined the effects of quercetin on spontaneously contracting portal veins isolated from healthy young adult male and female Wistar rats (250-300 g). Quercetin (10(-7)-10(-4) M) always produced significant biphasic effects, comprising an initial brief stimulant effect (rise in basal tone), followed by a su...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:
更新日期:2010-05-01 00:00:00
abstract::We are deeply saddened by the loss of our great teacher Donald Ross, a truly global mentor in cardiac surgery, a friend, a respectful colleague, an admirer, and custodian of our profession, who passed away on July 7, 2014. ...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:Although many reports have detailed the advantages and disadvantages between femoral and subclavian arterial cannulations for acute aortic dissection type A (AADA), the confounding factors caused by disease severity and surgical procedures could not be completely eliminated. We compared femoral and subclavia...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2015-056
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVE:The aims of this study were to report on our experience with upper limb ischaemia (ULI), to define the pattern and distribution of disease, describe key demographic features and report on conventional clinical outcomes. METHODS:This was a single-centre, retrospective, descriptive study. All patients (n = 64)...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2017-049
更新日期:2018-03-01 00:00:00
abstract:INTRODUCTION:This prospective study was planned to investigate the frequency and relationship of acquired von Willebrand syndrome (AVWS) with aortic and pulmonary stenosis in patients. METHODS:A total of 84 children, ranging from two to 18 years of age, were enrolled in this study. Of these, 28 had isolated aortic ste...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2015-093
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:To identify socio-demographic and lifestyle determinants of weight gain in a sample of premenopasual black South African (SA) women. METHODS:Changes in body composition (dual-energy X-ray absorptiometry, computerised tomography), socio-economic status (SES) and behavioural/lifestyle factors were measured in ...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2016-038
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:Dyslipidaemia is a major modifiable risk factor for atherosclerotic cardiovascular disease. At the time the study was conducted, guidelines recommended a low-density lipoprotein cholesterol (LDL-C) target of less than 1.8 mmol/l and a reduction of at least 50% if the baseline LDL-C was between 1.8 and 3.5 mm...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,多中心研究
doi:10.5830/CVJA-2020-010
更新日期:2020-09-01 00:00:00
abstract:AIM:To investigate the osteogenic differentiation of vascular smooth muscle cells (VSMCs) in mice with chronic kidney disease (CKD) and to evaluate the effects of p53 on the osteogenic differentiation of the VSMCs. METHODS:Experimental models of CKD-associated vascular calcification generated by five-sixth (5/6) nephr...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2011-069
更新日期:2012-07-12 00:00:00
abstract::Behcet's syndrome is a systemic inflammatory disease associated with vasculitis, and arterial, venous and cardiac disorders. Thirty-eight Behcet's disease patients were examined prospectively with echocardiography, ultrasonography and computed tomography, and coagulation parameters were determined. Deep venous insuffi...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2014-003
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND:A four-amino acid deletion was identified within the alpha 2C-adrenergic receptor (alpha 2C Del322-325) that, when homozygous, increases the risk of heart failure in African-Americans nearly six-fold. We hypothesised that homozygosity for the alpha 2C Del322-325 polymorphism may be a risk factor for heart fa...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00