Evidence map›Paper›PMID 24869911›Full record

ArticleCongenital heart disease

Comparison of echocardiographic and pressure-volume loop indices of systolic function in patients with single ventricle physiology: a preliminary report.

Ryan J Butts, Shahryar M Chowdhury, Jason Buckley, Anthony M Hlavacek, Tain Yen Hsia, Sachin Khambadkone, G Hamilton Baker, MOCHA investigators

Open access · greenAbstract readComparative StudyMulticenter StudyValidation Study
In one paragraph

Article in Congenital heart disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.5field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Echocardiographic Detection of Increased Ventricular Diastolic Stiffness in Pediatric Heart Transplant Recipients: A Pilot Study.Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography · 2018
    Article
  4. Article
  5. Article
  6. Article
  7. Clinical Applications of Pressure-Volume Assessment in Congenital Heart Disease.Journal of the Society for Cardiovascular Angiography & Interventions
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Ryan J ButtsDepartment of Pediatrics, Division of Cardiology, Medical University of South Carolina, Charleston, SC, USA.
Shahryar M Chowdhury
Jason Buckley
Anthony M Hlavacek
Tain Yen Hsia
Sachin Khambadkone
G Hamilton Baker
MOCHA investigators
Medical University of South Carolina · USGreat Ormond Street Hospital · GB

Funding

Research Training in Pediatric CardiologyT32HL007710 · NHLBI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI GRAHAM, ERIC M. · 1994 to 2014
$3.6M
British Heart Foundation FS/12/35/29566NHLBI NIH HHS L40 HL120025NHLBI NIH HHS T32 HL007710
6 · The paper itself

Abstract

backgroundDifferences in ventricular geometry and physiology of patients with single ventricle anatomy complicate the application of traditional, noninvasive measurements of systolic function. We compared noninvasive measures of ventricular systolic function in single ventricle patients with invasive measures to evaluate their validity in this population.

methodsA secondary analysis of patients with single ventricle physiology enrolled in the multi-institutional research project, "multi-scale modeling of single ventricle hearts," was performed. Pressure-volume loops (PVLs) were recorded using microconductance catheters. Transthoracic echocardiogram and cardiac magnetic resonance imaging were performed on the same day. PVL indices of systolic function including end-systolic elastance (Ees), maximal rate of pressure increase (dP/dTmax), and stroke work indexed to end-diastolic volume (SW/EDV) were compared with noninvasive measures, including echocardiographic myocardial performance index (MPI), rate of pressure rise (AV valve dP/dT), isovolumic acceleration, longitudinal shortening fraction (longSF), and fractional area change (FAC).

resultsFifteen patients had PVLs available for analysis. Eleven had a dominant right ventricle, three were status poststage 1 repair, five had superior cavopulmonary anastomosis, and seven had a total cavopulmonary anastomosis. FAC correlated with Ees (r = 0.69, P < .01), SW/EDV (r = 0.64, P = .01), and dP/dTmax (r = 0.59, P = .03). LongSF correlated with dP/dTmax (r = 0.61, P = .02) MPI, AV valve dP/dT, and isovolumic acceleration did not correlate with pressure-volume loop indices of systolic function.

conclusionsObtaining PVLs via microconductance catheters can reliably be performed in the single ventricle population and serve as a method to validate echocardiographic indices in this high-risk population. Of the echocardiographic variables, FAC showed the best correlation with PVL indices. Future studies controlling for stage of palliation should be performed to further validate echocardiographic measures of systolic function in this patient population.

Indexed as

Cardiac CatheterizationEchocardiography, DopplerVentricular Function, LeftVentricular Function, RightAdolescentCardiac CathetersCardiac Surgical ProceduresChildChild, PreschoolEquipment DesignHeart Defects, CongenitalHeart VentriclesHumansInfantMagnetic Resonance Imaging, CineMaleEchocardiographyPressure-volume LoopSingle VentricleSystolic FunctionVentricular Mechanics

Identifiers

PMID24869911
PMCPMC4373647
OpenAlexW1612168258

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.