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Regression of electrocardiographic left ventricular hypertrophy during antihypertensive therapy and reduction in sudden cardiac death: the LIFE Study
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2007 (Engelska)Ingår i: Circulation, ISSN 0009-7322, E-ISSN 1524-4539, Vol. 116, nr 7, s. 700-705Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background: Sudden cardiac death (SCD) occurs more often in patients with ECG left ventricular (LV) hypertrophy. However, whether LV hypertrophy regression is associated with a reduced risk of SCD remains unclear.

Methods and Results: The Losartan Intervention for End Point Reduction in Hypertension (LIFE) study included 9193 patients 55 to 80 years of age with essential hypertension and ECG LV hypertrophy by gender-adjusted Cornell product (CP) (RaVL+SV3 [+6 mm in women]) · QRS duration>2440 mm · ms) and/or Sokolow-Lyon voltage (SLV) (SV1+RV5/6>38 mm). During follow-up (mean, 4.8 years), 190 patients (2%) experienced SCD. In time-dependent Cox analyses, absence of in-treatment LV hypertrophy was associated with a decreased risk of SCD: every 1-SD-lower in-treatment CP (1050 mm · ms) was associated with a 28% lower risk of SCD (hazard ratio [HR], 0.72; 95% CI, 0.66 to 0.79) and 1-SD-lower SLV (10.5 mm) with a 26% lower risk (HR, 0.74; 95% CI, 0.65 to 0.84). After adjustment for time-varying systolic and diastolic blood pressures, treatment allocation, age, gender, baseline Framingham risk score, ECG strain, heart rate, urine albumin/creatinine ratio, smoking, diabetes, congestive heart failure, coronary heart disease, atrial fibrillation, and occurrence of myocardial infarction, atrial fibrillation, heart failure, and noncardiovascular death, both in-treatment CP and SLV remained predictive of SCD: each 1-SD-lower CP was associated with a 19% lower risk of SCD (HR, 0.81; 95% CI, 0.73 to 0.90) and 1-SD-lower SLV with an 18% lower risk (HR, 0.82; 95% CI, 0.70 to 0.98). Absence of in-treatment LV hypertrophy by both SLV and CP was associated with a 30% lower risk of SCD (HR, 0.70; 95% CI, 0.54 to 0.92).

Conclusions: Absence of in-treatment ECG LV hypertrophy is associated with reduced risk of SCD independently of treatment modality, blood pressure reduction, prevalent coronary heart disease, and other cardiovascular risk factors in hypertensive patients with LV hypertrophy.

Ort, förlag, år, upplaga, sidor
Lippincott Williams & Wilkins, 2007. Vol. 116, nr 7, s. 700-705
Nyckelord [en]
death, sudden, electrocardiography, hypertension, hypertrophy, mortality
Nationell ämneskategori
Kardiologi
Identifikatorer
URN: urn:nbn:se:umu:diva-6283DOI: 10.1161/CIRCULATIONAHA.106.666594ISI: 000248724900005PubMedID: 17664372Scopus ID: 2-s2.0-34547868157OAI: oai:DiVA.org:umu-6283DiVA, id: diva2:145952
Tillgänglig från: 2007-12-08 Skapad: 2007-12-08 Senast uppdaterad: 2021-03-22Bibliografiskt granskad

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Lindholm, Lars H

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