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Prevalence and determinants of left ventricular hypertrophy in acromegaly: impact of different methods of indexing left ventricular mass.

Abstract：

BACKGROUND:Left ventricular hypertrophy (LVH) is the most common cardiac abnormality in acromegaly. Left ventricular mass (LVM) is an important parameter measured to detect LVH, but the relationship with body size should be considered by correcting LVM to body surface area (BSA), height or height2.7. All trials concerning acromegaly have detected LVH on the basis of LVM indexed for BSA, but have been criticized for disregarding the effects of obesity. PATIENTS AND MEASUREMENTS:97 patients with active acromegaly and a control group of 97 nonacromegalic subjects, were compared for the prevalence of LVH, calculated with different corrections of LVM for BSA, height and height2.7. In addition, we evaluated determinants of LVH in acromegalic group. RESULTS:In controls, the prevalence of LVH, determined by correcting LVM for BSA (10.3%) was significantly lower than correcting by LVM/height (21.6%, P = 0.05) and LVM/height2.7 (33%, P < 0.0001). Similarly, in the acromegalic population the prevalence of LVH was significantly higher when measured by LVM/height (86.6%) or LVM/height2.7 (89.7%), than by LVM/BSA (67%) (P = 0.002 and P < 0.0001, respectively). A lower prevalence of LVH detected by LVM/BSA than LVM/height and LVM/height2.7 has been observed in an acromegalic overweight group, while in patients with normal weight there was no significant differences using different corrections. In acromegalic patients with disease duration of 10 years. By separate multiple regression analyses systolic blood pressure was the only independent determinant of LVM/BSA or LVM/height, while systolic blood pressure and GH levels were both predictors of LVM/height2.7. CONCLUSIONS:LVM indexed for height2.7 appears to be the most appropriate method to identify LVH in acromegaly, particularly in overweight patients and those with shorter disease duration.

journal_name

Clin Endocrinol (Oxf)

journal_title

Clinical endocrinology

authors

Vitale G,Galderisi M,Pivonello R,Spinelli L,Ciccarelli A,de Divitiis O,Lombardi G,Colao A

doi

10.1111/j.1365-2265.2004.01985.x

keywords:

subject

Has Abstract

pub_date

2004-03-01 00:00:00

pages

343-9

issue

eissn

0300-0664

issn

1365-2265

pii

1985

journal_volume

pub_type

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Prevalence and determinants of left ventricular hypertrophy in acromegaly: impact of different methods of indexing left ventricular mass.