What does this research mean for the field?

The graded treadmill exercise test is highly sensitive for detecting severe obstruction and increased left ventricular end-diastolic pressure in nonoperated children with aortic stenosis, but its diagnostic utility is substantially reduced in postoperative patients. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

October 1, 1983Clinical CardiologyOpen Access

Value of treadmill exercise test in pre‐ and postoperative children with valvular aortic stenosis

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Why the study?

Does graded treadmill exercise test accurately estimate the severity of obstruction in postoperative children with valvular aortic stenosis compared to nonoperated children?

Population

Children with valvular aortic stenosis, including both postoperative and nonoperated patients.

Comparison

Graded treadmill exercise test (ETT) vs Nonoperated aortic stenosis group versus…

Design

Cross-sectional

Follow-up

7.5 years post-surgery for the postoperative group

Authors

CBCatherine W. BartonUniversity of California, Los Angeles BKBradley J. KatzUniversity of Utah MSM. Anthony SchorkGSI Helmholtz Centre for Heavy Ion Research

Discussion

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Implication

ETT shows lower sensitivity postoperatively, warranting caution in assessing obstruction; leaves open optimal noninvasive strategies in pediatric aortic stenosis.

Structured PICO

Does graded treadmill exercise test accurately estimate the severity of obstruction in postoperative children with valvular aortic stenosis compared to nonoperated children?

Population

Children with valvular aortic stenosis, including both postoperative and nonoperated patients.

Intervention

Graded treadmill exercise test (ETT)

Comparator

Nonoperated aortic stenosis group versus postoperative aortic stenosis group

Outcome

Sensitivity and specificity of ETT in estimating severity of obstruction (Peak systolic ejection gradient ≥50 mmHg and LVEDP ≥12 mmHg)surrogate

Treadmill exercise testing is less sensitive for estimating the severity of obstruction and elevated left ventricular end-diastolic pressure in postoperative children with aortic stenosis compared to nonoperated children.

Cite This Study

Barton et al. (1983) studied this question.

synapsesocial.com/papers/6a189553d654b1eb0d4aa394 https://doi.org/10.1002/clc.4960061002

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Implication

ETT shows lower sensitivity postoperatively, warranting caution in assessing obstruction; leaves open optimal noninvasive strategies in pediatric aortic stenosis.

Value of treadmill exercise test in pre‐ and postoperative children with valvular aortic stenosis

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Value of treadmill exercise test in pre‐ and postoperative children with valvular aortic stenosis

Discussion

Member takes

Implication

Structured PICO

Cite This Study

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