What question did this study set out to answer?

To evaluate the efficacy of gated radionuclide cardiac blood pool scanning in visualizing the interventricular septum and left ventricular dynamics in hypertrophic cardiomyopathy.

January 1, 1977Circulation

Hypertrophic cardiomyopathy. Evaluation by gated cardiac blood pool scanning.

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Why the study?

Does gated cardiac blood pool scanning accurately evaluate structural abnormalities in patients with hypertrophic cardiomyopathy?

Population

22 patients with hypertrophic cardiomyopathy, 9 with valvular aortic stenosis, and 6 normal controls.

Comparison

Gated radionuclide cardiac blood pool scan and… vs Findings in patients with valvular aortic…

Design

Cross-sectional

Authors

GPG M PohostHarvard University PVPaul A. VignolaAventura Hospital and Medical Center KMK E McKusick

Discussion

Member takes

Implication

GCS may complement echocardiography for HCM structural assessment; leaves open accuracy versus contemporary imaging in prospective studies.

Key Points

To evaluate the efficacy of gated radionuclide cardiac blood pool scanning in visualizing the interventricular septum and left ventricular dynamics in hypertrophic cardiomyopathy.
Evaluated 22 patients with hypertrophic cardiomyopathy, 9 with valvular aortic stenosis, and 6 healthy normal controls.
Performed both standard echocardiography and gated radionuclide cardiac blood pool scanning to image septal anatomy and ventricular contraction patterns.
In hypertrophic cardiomyopathy (n=22), blood pool scanning demonstrated cavity obliteration in 17, septal flattening in 16, outflow tract filling defects in 16, and upper septal thickening in 11 patients.
In valvular aortic stenosis (n=9), scanning revealed septal flattening, cavity obliteration, and outflow defects in 2 patients each, while none displayed upper septal thickening.
Echocardiography showed asymmetric septal hypertrophy in all 22 hypertrophic cardiomyopathy patients and resting systolic anterior motion of the mitral valve in 14 of 22.

Structured PICO

Does gated cardiac blood pool scanning accurately evaluate structural abnormalities in patients with hypertrophic cardiomyopathy?

Population

22 patients with hypertrophic cardiomyopathy, 9 with valvular aortic stenosis, and 6 normal controls (total n=37).

Intervention

Gated radionuclide cardiac blood pool scan (GCS) and echocardiography

Comparator

Findings in patients with valvular aortic stenosis and normal controls

Outcome

Visualization of structural abnormalities including disproportionate upper septal thickening, septal flattening, cavity obliteration, and filling defect in the left ventricular outflow tractsurrogate

Gated cardiac blood pool scanning is a useful atraumatic technique that complements echocardiography in evaluating structural abnormalities in hypertrophic cardiomyopathy.

Cite This Study

Pohost et al. (1977) studied this question.

synapsesocial.com/papers/6a8ada5fc12eaf65c8b1ea03 https://doi.org/10.1161/01.cir.55.1.92

Topics

Echocardiography Cardiomyopathy Cardiac amyloidosis

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Implication

GCS may complement echocardiography for HCM structural assessment; leaves open accuracy versus contemporary imaging in prospective studies.

Hypertrophic cardiomyopathy. Evaluation by gated cardiac blood pool scanning.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

Hypertrophic cardiomyopathy. Evaluation by gated cardiac blood pool scanning.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Topics

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