scholarly journals 9 ASSESSMENT OF LEFT VENTRICULAR HYPERTROPHY IN HYPERTENSIVE ADOLESCENTS USING ECHO, ECG, AND X-RAY

1978 ◽  
Vol 12 ◽  
pp. 365-365
Author(s):  
W Pennock Laird ◽  
David E Fixler ◽  
F Doug Huffines
Keyword(s):  
Left Ventricular Hypertrophy ◽  
Ventricular Hypertrophy ◽  
Left Ventricular ◽  
X Ray

scholarly journals Low QRS Voltage in Limb Leads Indicates Accompanying Precordial Voltage Attenuation Resulting in Underestimation of Left Ventricular Hypertrophy

2021 ◽  
Vol 18 (24) ◽  
pp. 12867
Author(s):  
Hye-Bin Gwag ◽  
Su-Hyun Lee ◽  
Hyeon-Jun Kim ◽  
June-Soo Kim ◽  
Young-Keun On ◽  
...  
Keyword(s):  
Left Ventricular Hypertrophy ◽  
Ventricular Hypertrophy ◽  
Structural Heart Disease ◽  
Left Ventricular ◽  
Healthy Population ◽  
Primary Analysis ◽  
X Ray ◽  
Function Test ◽  
Chest X Ray ◽  
Voltage Attenuation

Low QRS voltage (LQRSV) in electrocardiography (ECG) often occurs in limb leads without apparent cause. However, its clinical significance is obscure in healthy populations. We reviewed patients aged over 60 who were scheduled for non-cardiac surgery in two hospitals. Patients underwent pre-operative ECG, echocardiography, pulmonary function test, and chest X-ray. Patients with LQRSV isolated to limb leads and patients without LQRSV were selected from separate hospitals. Among the 9832 patients screened in one hospital, 292 (3.0%) showed LQRSV in limb leads. One-hundred and ninety-four without LQRSV were selected as the control from the 216 patients screened at the other hospital. For primary analysis, patients with structural heart disease or classic etiologies of LQRSV were excluded. Patients with LQRSV had a higher proportion of male and a greater body mass index. Precordial QRS voltages were smaller, whereas left ventricular mass index and the prevalence of echocardiographic left ventricular hypertrophy (LVH) was higher in patients with LQRSV than in those without. Consequentially, diagnostic performance of precordial voltage criteria for LVH was particularly poor in patients with LQRSV in limb leads. LQRSV in limb leads frequently occurs without apparent etiologies. ECG voltage criteria may underestimate LVH in a relatively healthy population with LQRSV in limb leads.

Occurrence of intramitochondrial Ca2+ granules in a hypertrophied heart exposed to adriamycin

1984 ◽  
Vol 62 (9) ◽  
pp. 1239-1244 ◽  
Author(s):  
Pawan K. Singal ◽  
Michael S. Forbes ◽  
Nick Sperelakis
Keyword(s):  
Left Ventricular Hypertrophy ◽  
Ventricular Hypertrophy ◽  
Cell Damage ◽  
Myocardial Cell ◽  
Left Ventricular ◽  
Sham Control ◽  
Hypertrophied Heart ◽  
X Ray ◽  
Myocardial Cell Damage ◽  
Increased Susceptibility

Left ventricular hypertrophy was produced in rabbits by narrowing the abdominal aorta in the subdiaphragmatic region. Six weeks after the surgery, sham control as well as hypertrophied animals were treated with adriamycin. Myocardial cell damage resulting from a total cumulative dose of 5 mg/kg of adriamycin was seen only in hypertrophied hearts. Alterations in muscle cells of these hearts included prominent "contraction bands" and perinuclear edema. Mitochondria were characterized by swelling and accumulation of electron-opaque granules. Energy-dispersive x-ray analysis of the mitochondria revealed the presence of calcium in these granules. The study confirms that the hypertrophied heart is more vulnerable to adriamycin-induced cell damage and this may be due to an increased susceptibility of these hearts to the occurrence of Ca2+ overload in the cell.

Left Ventricular Hypertrophy

2014 ◽  
Vol 19 (2) ◽  
pp. 11-15
Author(s):  
Steven L. Demeter
Keyword(s):  
Risk Factors ◽  
Left Ventricular Hypertrophy ◽  
Ventricular Hypertrophy ◽  
Left Ventricular Mass Index ◽  
Medical Science ◽  
Careful Analysis ◽  
Left Ventricular ◽  
Hypertensive Disease ◽  
Accurate Analysis ◽  
Clear Explanation

Abstract The fourth, fifth, and sixth editions of the AMA Guides to the Evaluation of Permanent Impairment (AMA Guides) use left ventricular hypertrophy (LVH) as a variable to determine impairment caused by hypertensive disease. The issue of LVH, as assessed echocardiographically, is a prime example of medical science being at odds with legal jurisprudence. Some legislatures have allowed any cause of LVH in a hypertensive individual to be an allowed manifestation of hypertensive changes. This situation has arisen because a physician can never say that no component of LVH was not caused by the hypertension, even in an individual with a cardiomyopathy or valvular disorder. This article recommends that evaluators consider three points: if the cause of the LVH is hypertension, is the examinee at maximum medical improvement; is the LVH caused by hypertension or another factor; and, if apportionment is allowed, then a careful analysis of the risk factors for other disorders associated with LVH is necessary. The left ventricular mass index should be present in the echocardiogram report and can guide the interpretation of the alleged LVH; if not present, it should be requested because it facilitates a more accurate analysis. Further, if the cause of the LVH is more likely independent of the hypertension, then careful reasoning and an explanation should be included in the impairment report. If hypertension is only a partial cause, a reasoned analysis and clear explanation of the apportionment are required.

The association of ankle brachial index with left ventricular hypertrophy and left ventricular mass index: the Dong-gu study

VASA ◽  
2013 ◽  
Vol 42 (4) ◽  
pp. 284-291 ◽  
Author(s):  
Seong-Woo Choi ◽  
Hye-Yeon Kim ◽  
Hye-Ran Ahn ◽  
Young-Hoon Lee ◽  
Sun-Seog Kweon ◽  
...  
Keyword(s):  
Left Ventricular Hypertrophy ◽  
Left Ventricular Mass ◽  
Ventricular Hypertrophy ◽  
Left Ventricular Mass Index ◽  
Ankle Brachial Index ◽  
Intima Media Thickness ◽  
Left Ventricular ◽  
Baseline Survey ◽  
Ventricular Mass Index ◽  
Ventricular Mass

Background: To investigate the association between ankle-brachial index (ABI), left ventricular hypertrophy (LVH) and left ventricular mass index (LVMI) in a general population. Patients and methods: The study population consisted of 8,246 people aged 50 years and older who participated in the baseline survey of the Dong-gu Study conducted in Korea between 2007 and 2010. Trained research technicians measured LV mass using mode M ultrasound echocardiography and ABI using an oscillometric method. Results: After adjustment for risk factors and common carotid artery intima-media thickness (CCA-IMT) and the number of plaques, higher ABIs (1.10 1.19, 1.20 - 1.29, and ≥ 1.30) were significantly and linearly associated with high LVMI (1.10 - 1.19 ABI: β, 3.33; 95 % CI, 1.72 - 4.93; 1.20 - 1.29 ABI: β, 6.51; 95 % CI, 4.02 - 9.00; ≥ 1.30 ABI: β, 14.83; 95 % CI, 6.18 - 23.48). An ABI of 1.10 - 1.19 and 1.20 - 1.29 ABI was significantly associated with LVH (1.10 - 1.19 ABI: OR, 1.35; 95 % CI, 1.19 - 1.53; 1.20 - 1.29 ABI: OR, 1.59; 95 % CI, 1.31 - 1.92) and ABI ≥ 1.30 was marginally associated with LVH (OR, 1.73; 95 % CI, 0.93 - 3.22, p = 0.078). Conclusions: After adjustment for other cardiovascular variables and CCA-IMT and the number of plaques, higher ABIs are associated with LVH and LVMI in Koreans aged 50 years and older.

Sign in / Sign up

Export Citation Format

Share Document