Prevalence of first-degree atrioventricular block and the associated risk factors: a cross-sectional study in rural Northeast China

Du, Zhi; Xing, Liying; Lin, Min; Tian, Yuqing; Li, Jing; Yan, Han; Zhang, Boqiang; Liu, Shuang; Yu, Shiwen; Sun, Yingxian

doi:10.1186/s12872-019-1202-4

Cited by 10 publications

(11 citation statements)

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“…There is only one study investigated the prevalence of first-degree AV block in China prior to our study. However, this study only focus on the residents aged ≥ 40 years in rural Northeast China [ 8 ]. Our study is the first study investigated the prevalence of first-degree AV block among adults aged ≥ 18 years across mainland China (except Tibet).…”

Section: Discussionmentioning

confidence: 99%

“…The prevalence of first-degree AV block was reported to be 2% among Finnish general population aged 30–59 years (mean age, 44 years) [ 5 ] and 1.6% among Framingham general population aged ≥ 20 years (mean age, 47 years) [ 3 ]. Besides, in Asia, it reported to be 1.9% among Japanese general population aged 30–95 years (mean age, 49.9 years) (PR interval greater than 0.22 s) [ 14 ] and 3.4% among residents aged ≥ 40 years (mean age, 59.8 years) in rural Northeast China [ 8 ]. In our study, the prevalence of first-degree AV block was 0.68% which is relatively lower than those above-mentioned studies.…”

Section: Discussionmentioning

confidence: 99%

“…Only one study investigated the prevalence of first-degree AV block among 10,926 participants in China. Nevertheless, the study conduct among residents aged ≥ 40 years in rural Northeast China [ 8 ]. Moreover, no Chinese data on the prevalence of second and third-degree AV block are available among ostensibly healthy population.…”

Section: Introductionmentioning

confidence: 99%

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Prevalence and risk factors of atrioventricular block among 15 million Chinese health examination participants in 2018: a nation-wide cross-sectional study

Shan

Ning

Ma³

et al. 2021

BMC Cardiovasc Disord

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Background Nationwide data on the prevalence of atrioventricular (AV) block are currently unavailable in China. Thus, we aimed to assess the prevalence and risk factors of AV block among Chinese health examination adults. Methods A total of 15,181,402 participants aged ≥ 18 years (mean age 41.5 ± 13.4 years, 53.2% men) who underwent an electrocardiogram as a part of routine health examination in 2018 were analyzed. AV block was diagnosed by physicians using 12-lead electrocardiogram. Overall and stratified prevalence (by age, sex, and city size) of all, first-, second- and third-degree AV block were calculated. Multivariable logistic regression analyses were performed to explore risk factors associated with AV block. Results AV block was observed in 88,842 participants, including 86,153 with first-degree, 2249 with second-degree and 440 with third-degree AV block. The age- and sex-standardized prevalence rate [95% confidence interval (CI)] of all, first-, second- and third-degree AV block were 7.06‰ (7.01–7.11), 6.84‰ (6.79–6.89), 0.18‰ (0.17–0.18) and 0.04‰ (0.03–0.04) respectively. After multivariable adjustment, the risk of AV block was positively associated with older age, being male, lower heart rate, higher body mass index, hypertension, diabetes and low high-density lipoprotein cholesterol. High total cholesterol was associated with a lower risk of AV block. Conclusion First-degree AV block is relatively common while severe AV block is rare in health examination adults. Besides, AV block was highly prevalent among the elderly. The risk of AV block was associated with older age, being male and metabolic factors.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Prevalence and risk factors of atrioventricular block among 15 million Chinese health examination participants in 2018: a nation-wide cross-sectional study

Shan

Ning

Ma³

et al. 2021

BMC Cardiovasc Disord

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“…First-degree AV block is not only the most prevalent among the three subtypes but also the most benign and amenable to treatment [ 23 ]. There were no mortalities in this subgroup of AV blocks.…”

Section: Discussionmentioning

confidence: 99%

Arrhythmia in Acute Myocardial Infarction: A Six-Month Retrospective Analysis From the National Institute of Cardiovascular Diseases

Mueed

Khatti

Ashraf

et al. 2020

Cureus

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Introduction Acute myocardial infarction (AMI) is a devastating medical emergency that requires immediate pharmacological and radiological intervention. With the advent of techniques such as percutaneous coronary intervention (PCI), pacemakers, and percussion pacing, survival rates have improved significantly. However, there are certain factors and complications associated with AMI that still lead to a high mortality rate, such as old age, advanced heart disease, diabetes mellitus (DM), and arrhythmias. Factors such as the type of arrhythmia, the heart rate, and the level at which dissociation occurs between atrial and ventricular rhythm all influence mortality and morbidity rates. Outcomes are further influenced by the sex of the patient, the type of AMI [ST-elevation myocardial infarction (STEMI) or non-ST-elevation myocardial infarction (NSTEMI)], history of smoking, arrival times at the hospital, presence of hyperglycemia, previous history of cardiac surgery, and the need for a temporary pacemaker or a permanent pacemaker. As with most scientific studies, local data from Pakistan is hard to find on this topic as well. With this study, we hope to contribute valuable information and updates to the study of a developing problem from the developing world. Objective We aimed to analyze the frequency and outcomes of different types of arrhythmia in AMI. Methods This study involved a retrospective observational cohort. It was conducted at the National Institute of Cardiovascular Diseases (NICVD), Karachi from January 2019 to July 2019 (six months). All data were retrieved from the online database at the NICVD. Written consent was obtained from all patients. Patient confidentiality was ensured at all times. Results A total of 500 patients were included in the study. The mean age of our cohort was 56.17 ±14.01 years. NSTEMI was more prevalent than STEMI. Sinus arrhythmia (SA) was the most frequently recorded arrhythmia and had the best survival rates. Atrioventricular (AV) nodal blocks and ventricular tachycardia (VT) had the worst outcomes. The overall mortality rate was 11.4%, and the mean in-hospital length of stay was 2.07 ±1.54 days. Smoking increased mortality in all cases. Conclusions AMI is complicated by several types of arrhythmia. SA is the most common arrhythmia in AMI. Mortality in AMI is largely due to AV nodal blocks and VT. Smoking increases mortality in all cases.

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“…Bradyarrhythmias are rare in children and generally asymptomatic. First-degree heart block, recorded on ECG as a PR interval prolongation 0.2 seconds and more, is considered a benign finding in children with a prevalence of about 1%; although uncommon, it can be complicated by atrial fibrillation [Cheng S, Keyes MJ et al 2009-Zhi Du, Liying Xing, et al 2019. The incidence of sudden death in children is about 0.8-6.2 per 100000 live births and 65% of these deaths result from cardiac causes [Robert M. Kliegman, MD, Nelson Textbook of Pediatrics 20th edition 2016].…”

Section: Introductionmentioning

confidence: 99%

Arrhythmias in Children with Normal Heart in Albaha, Saudi Arabia

Almawazini¹,

Ghamdi²,

Hassan³

et al. 2021

jhms

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Introduction: Arrhythmias in children with structurally normal hearts are common and reported as the causes of many hospital admissions. Generally, the risk of death is low. Physical examination is important in children with arrhythmias. Objectives: This study aimed to review the common types and clinical presentations of arrhythmias in children with normal heart structures in Albaha, Saudi Arabia. Methodology: In this hospital-based retrospective cross-sectional study, the medical records of children were reviewed from January 2010 to December 2020. Results: Overall, 214 children were included in this study. The prevalence of arrhythmias was 27.10% in children aged 5-8 years; 18.7%, 8-12 years; 16.82%, 3-5 years; 16.35%, 1-3 years; 13.55%, 12-14 years; and 7.48%, <1 year. Arrhythmias were more frequent in females aged <5 years and in males aged >5 years; however, overall, there was no significant difference between females (47.20%) and males (52.80%). Supraventricular arrhythmias were the commonest and found in 85% of the children and ventricular arrhythmias were found in 15%. Sinus tachycardia was the most common type of arrhythmia, reported in 25% of the children. Conclusion: In general, arrhythmias in the children are asymptomatic. History, clinical examination, and electrocardiography are important for the diagnosis. Supraventricular arrhythmias are the most common. There is no significant difference between females and males with respect to the prevalence of arrhythmias.

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Prevalence of first-degree atrioventricular block and the associated risk factors: a cross-sectional study in rural Northeast China

Cited by 10 publications

References 30 publications

Prevalence and risk factors of atrioventricular block among 15 million Chinese health examination participants in 2018: a nation-wide cross-sectional study

Prevalence and risk factors of atrioventricular block among 15 million Chinese health examination participants in 2018: a nation-wide cross-sectional study

Arrhythmia in Acute Myocardial Infarction: A Six-Month Retrospective Analysis From the National Institute of Cardiovascular Diseases

Arrhythmias in Children with Normal Heart in Albaha, Saudi Arabia

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