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Heart failure in the elderly: characteristics of a Swedish primary health care population
Linköpings universitet, Institutionen för medicin och hälsa, Kardiologi. Linköpings universitet, Hälsouniversitetet.
Department of Medicine, Sahlgrenska Univ. Hosp.-Östra, Gothenburg, Sweden.
Linköpings universitet, Institutionen för medicin och hälsa, Klinisk fysiologi. Linköpings universitet, Hälsouniversitetet.
Linköpings universitet, Institutionen för medicin och hälsa, Kardiologi. Linköpings universitet, Hälsouniversitetet.ORCID-id: 0000-0001-6353-8041
2002 (engelsk)Inngår i: Heart Drug, ISSN 1422-9528, E-ISSN 1424-0556, Vol. 2, nr 5, s. 211-220Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background: Heart failure (HF) is a challenge to diagnose and treat according to guidelines. Few studies have been performed in elderly subjects with symptoms that might be associated with HF in primary health care.

Objective: To study elderly patients presenting with symptoms possibly associated with HF, with respect to systolic and diastolic function, B-type natriuretic peptide (BNP) levels and treatment.

Methods: A cardiologist examined 415 elderly (65–82 years) patients with symptoms of dyspnoea, fatigue and/or peripheral oedema. All patients underwent echocardiography and plasma BNP determination. Systolic function was determined semiquantitatively, and ejection fraction (EF) <40% was considered to be reduced. Abnormal diastolic function was defined as a reduced ratio of peak early diastolic filling velocity to peak filling velocity at atrial contraction (E/A ratio; age adjusted) or an abnormal pattern of pulmonary venous flow.

Results: Forty-eight percent of the patients showed abnormal systolic (26%) or diastolic function (22%). A majority of the patients with diastolic HF had relaxation abnormalities and neither pseudonormal nor restrictive filling patterns. Increased levels of BNP were found in the group with impaired systolic function. More than half of those with EF <40% were not receiving angiotensin-converting enzyme inhibitions at all, or were on a suboptimal dose, whereas others were on treatment for an HF diagnosis despite normal cardiac function.

Conclusion: Diagnostic tools that are more objective than clinical examination are needed for the diagnosis of HF.

sted, utgiver, år, opplag, sider
2002. Vol. 2, nr 5, s. 211-220
Emneord [en]
Elderly patients, Heart failure, Primary health care
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-46849DOI: 10.1159/000067723OAI: oai:DiVA.org:liu-46849DiVA, id: diva2:267745
Tilgjengelig fra: 2009-10-11 Laget: 2009-10-11 Sist oppdatert: 2017-12-13bibliografisk kontrollert
Inngår i avhandling
1. Heart failure in primary health care: special emphasis on natriuretic peptides in the elderly
Åpne denne publikasjonen i ny fane eller vindu >>Heart failure in primary health care: special emphasis on natriuretic peptides in the elderly
2003 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Background: This thesis focuses on heart failure among elderly patients in the community who usually are not included in studies on heart failure. The heart failure syndrome is an increasing problem in Western society. Severe heart failure is often easy to diagnose compared with light to moderate heart failure, which is more frequent in patients in the community,

Doppler echocardiography is the most commonly used method to objectively verify an abnormal cardiac function, mostly the systolic function. One goal of this thesis was to evaluate both the systolic and diastolic functions. Another goal was a study of the possible utility of the B-type natriuretic peptide, BNP (brain natriuretic peptide), and the amino terminal fragment of its precursor, proBNP (N-terminal proBNP) as tools in the diagnosis of heart failure in elderly patients.

Methods: In a primary health care setting, 510 elderly patients (age range 65-82 years) with symptoms and signs possibly associated with heart failure were examined concerning patient history, ongoing pharmacological treatment, clinical examination, chest x-ray, electrocardiogram, Doppler echo cardiography, and selected biochemical measurements of blood samples. Additionally, the natriuretic peptide BNP and the aminoterminal fragment of proBNP were analyzed for a possible influence of gender, age, impaired cardiac function assessed using Doppler echocardiography, other diseases, and phannacological treatment. We followed our study population for six years, carefully registering mortality with death certificates. This information was used in analyzing the risk of cardiovascular death based on Cox proportional hazard regression. We present a model for estimating the risk of cardiovascular death in the individual patient.

Results: Almost half of our study population [mean age 73 (SD 6) years] with symptoms of possible heart failure had signs of impaired cardiac function on Doppler echocardiography. Half of these individuals had isolated impairment of the diastolic function. Almost two thirds of the elderly patients who had an ejection fraction of less than 40% did not receive treatment with ACE inhibitors, one of the cornerstones in the treatment of heart failure.

BNP and N-terminal proBNP were equally effective in detecting impaired cardiac function. As a response to increased filling pressure they probably provide earlier information on the haemodynamic situation than Doppler echocardiography does.

In these elderly patients, functional class (NYHA class III: 7 times increased risk), in vivo examination by Doppler echo cardiography (EF<30%: 8 times increased risk) and the in vitro measurement of plasma BNP (>27.8 pmol/L: 11 times increased risk) and N-terminal proBNP (>109 pmol/L: 7 times increased risk) could be used as prognostic determinants in assessing the risk of cardiovascular death.

Conclusion: The results indicate that a focused patient history and clinical examination provides important information that is often sufficient for the prognostic evaluation of a patient with heart failure symptoms. Additional information may be obtained with Doppler echo cardiographic examination and measurement of plasma BNP or N-terminal proBNP. The relationship between BNPIN-terminal proBNP concentration and risk of cardiovascular death may be analysed to define decision limits for the concentrations of these peptides as regards further diagnostic procedures and/or phannaceutical treatment.

sted, utgiver, år, opplag, sider
Linköping: Linköping University Electronic Press, 2003. s. 111
Serie
Linköping University Medical Dissertations, ISSN 0345-0082 ; 819
HSV kategori
Identifikatorer
urn:nbn:se:liu:diva-27454 (URN)12107 (Lokal ID)91-7373-508-6 (ISBN)12107 (Arkivnummer)12107 (OAI)
Disputas
2003-11-06, Hälsans Hus, Hälsouniversitetet, Campus US, Linköpings Universitet, Linköping, 13:00 (engelsk)
Opponent
Tilgjengelig fra: 2009-10-08 Laget: 2009-10-08 Sist oppdatert: 2012-10-17bibliografisk kontrollert

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