Seasonal variation in admission for heart failure, hypertension and stroke in Uyo, South-Eastern Nigeria

Ansa, VO; Ekott, JU; Essien, I. O.; Bassey, EA

doi:10.4103/1596-3519.55679

Cited by 30 publications

(15 citation statements)

References 13 publications

(14 reference statements)

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“…These result are in agreement with various studies performed either in the Northern Hemisphere15–23 and in the Southern Hemisphere 24–29. These similarities occurred despite the fact that there can be considerable differences between climates due to on‐site variability or between sites.…”

Section: Discussionsupporting

confidence: 93%

Seasonal Variation in Heart Failure Hospitalization

Gallerani

Boari

Manfredini

et al. 2011

Clinical Cardiology

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Background: A seasonal variation has been reported for occurrence of acute cardiovascular events, such as myocardial infarction, sudden death, and rupture/dissection of aortic aneurysms. Hypothesis: The aim of this study was to determine whether a seasonal variation exists for heart failure (HF) hospitalization. Methods:The study included all cases of HF admissions to Ferrara Hospital between January 2002 and December 2009. The sample was divided into subgroups by gender, age, cardiovascular risk factors, patients' outcome, and order of ICD-9 codes (first diagnosis, accessory diagnosis). On the basis of date of admission, cases have been analyzed for seasonal variation and annual frequency. For seasonal analysis, monthly cases were categorized into four 3-month intervals by seasons. Moreover, monthly admissions have been also adjusted for number of days, and the average number of admissions per month has been used. Results: The database included 15 954 patients with the ICD-9-CM codes of HF (420-429). Hospital admissions for HF were most frequent in winter (28.4%) and least in summer (20.4%). Chronobiological analysis yielded a significant peak in January for total cases and all subgroups considered. No differences were found for subgroups by gender, age, fatal cases, presence of hypertension and diabetes mellitus, patients' outcome, and order of ICD-9 codes (first diagnosis, accessory diagnosis). Conclusions: A seasonal periodicity for HF hospitalization was demonstrated, with a peak in winter months, independent of gender, age, major cardiovascular risk factor, and patients' outcome. These data could be useful for practitioners to improve causative prevention measures, therapeutic management, and educational strategies.

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Section: Discussionsupporting

confidence: 93%

Seasonal Variation in Heart Failure Hospitalization

Gallerani

Boari

Manfredini

et al. 2011

Clinical Cardiology

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“…In Niteroi, Brazil, in 1996–2004 (Jorge et al 2009 ), the peak season for heart failure seemed to be late autumn. In the University of Uyo Hospital located in Southeastern Nigeria in 1998–2001 (Ansa et al 2008 ), excess admissions due to heart failure were also recorded in the rainy season when the cold days came. In all hospitals within the Ninohe district, Japan, in 2002–2005 (Ogawa et al 2007 ), however, more heart failure admissions were found to be in spring and winter.…”

Section: Discussionmentioning

confidence: 99%

Relationships of physiologically equivalent temperature and hospital admissions due to I30–I51 other forms of heart disease in Germany in 2009–2011

Shiue

Perkins

Bearman

2015

Environ Sci Pollut Res

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We aimed to understand relationships of the weather as biometeorological and hospital admissions due to other forms of heart disease by subtypes, which have been paid less attention, in a national setting in recent years. This is an ecological study. Ten percent of daily hospital admissions of the included hospitals (n = 1618) across Germany that were available between 1 January 2009 and 31 December 2011 (n = 5,235,600) were extracted from Statistisches Bundesamt, Germany. We identified I30–I51 other forms of heart disease by the International Classification of Diseases version 10 as the study outcomes. Daily weather data from 64 weather stations that have covered 13 German states, including air temperature, humidity, wind speed, cloud cover, radiation flux and vapour pressure, were obtained and generated into physiologically equivalent temperature (PET). Admissions due to other diseases of pericardium, nonrheumatic mitral valve disorders, nonrheumatic aortic valve disorders, cardiomyopathy, atrioventricular and left bundle-branch block, other conduction disorders, atrial fibrillation and flutter, and other cardiac arrhythmias peaked when PET was between 0 and 10 °C. Complications and ill-defined descriptions of heart disease admissions peaked at PET 0 °C. Cardiac arrest and heart failure admissions peaked when PET was between 0 and −10 °C while the rest did not vary significantly. A common drop of admissions was found when PET was above 10 °C. More medical resources could have been needed for heart health on days when PETs were <10 °C than on other days. Adaptation to such weather change for medical professionals and the general public would seem to be imperative.

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“…The greater incidence and severity of heart failure (HF) leading to hospitalization during the winter is also widely reported [6,7,21-23]. A patient with HF has little physiological reserve to deal with an increase in cardiac workload.…”

Section: Discussionmentioning

confidence: 99%

Effect of seasonal variation on hospital admission due to cardiovascular disease - findings from an observational study in a divisional hospital in Bangladesh

Khan

Halder

2014

BMC Cardiovasc Disord

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BackgroundSeasonal variation in the hospital admission due to cardiovascular disease (CVDs) has been widely reported. However, very limited data on Bangladesh is available regarding this matter. The aim of the current study was to investigate the effect of seasonal variation on hospital admission due to CVDs in a leading hospital of Bangladesh.MethodsOver a period of two years (from May 2010 to April 2012), the number of patients hospitalized due to various CVDs and number of death among these hospitalized patients were recorded on a day-to-day basis. The data were recorded according to the chief reason of hospital admission such as myocardial infarction or MI (acute, old and non-ST elevation), unstable angina (UA), exaggeration of stable angina, acute left ventricular failure (LVF), cardiomyopathy (ischemic and dilated) or heart failure, syncope and arrhythmia. The data were cumulated and analyzed on month-wise and season-wise manner.ResultsA total of 8371 patients were admitted over the study period (5909 male and 2462 female; M/F ratio - 2.4:1). The highest number of patients were admitted during winter (n = 2839, 33.9%) and lowest during summer (n = 1648, 19.7%). The hospital admission was also significantly higher in winter compared to other seasons (p-value versus summer, autumn and spring was 0.018, 0.020 and 0.023 respectively). Acute MI (n = 2374), Acute LVF (n = 1582) and UA (n = 1277) were the top three reasons for hospitalization. Number of death also significantly higher in winter compared to other seasons (p-value versus summer, winter and spring was 0.044, 0.050 and 0.014 respectively).ConclusionA seasonal variation in the hospital admission due to CVDs with a peak in winter was clearly demonstrated in the study. These data could be useful to improve causative prevention measures, therapeutic management, and educational strategies.

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Seasonal variation in admission for heart failure, hypertension and stroke in Uyo, South-Eastern Nigeria

Cited by 30 publications

References 13 publications

Seasonal Variation in Heart Failure Hospitalization

Seasonal Variation in Heart Failure Hospitalization

Relationships of physiologically equivalent temperature and hospital admissions due to I30–I51 other forms of heart disease in Germany in 2009–2011

Effect of seasonal variation on hospital admission due to cardiovascular disease - findings from an observational study in a divisional hospital in Bangladesh

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