Evidence map›Paper›PMID 22438019›Full record

Trial reportPediatric nephrology (Berlin, Germany)2012

Carnitine supplementation improves cardiac strain rate in children on chronic hemodialysis.

Kristen Sgambat, Lowell Frank, Ahmad Ellini, Craig Sable, Asha Moudgil

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Pediatric nephrology (Berlin, Germany), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 2 pooled it
0.8field-weighted citation impact, top 25% 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, 2 syntheses or guidelines pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. The role of carnitine in maintenance dialysis therapy.Pediatric nephrology (Berlin, Germany) · 2021
    Review
  4. Article
  5. Article
  6. Review
  7. Article
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

5 authors at 1 institution in 1 country.

Kristen SgambatDepartment of Nephrology, Children's National Medical Center, 111 Michigan Ave NW, Washington, DC 20010, USA. ksgambat@childrensnational.org
Lowell Frank
Ahmad Ellini
Craig Sable
Asha Moudgil
Children's National · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCarnitine plays a key role in energy production in the myocardium. Carnitine deficiency commonly occurs in patients on chronic hemodialysis (HD) and may contribute to cardiomyopathy.

methodsCarnitine levels and cardiac function of nine children on HD were assessed before and after 6 months of intravenous levocarnitine supplementation. Standard echocardiographic (ECHO) measures of left ventricular (LV) function as well as strain and strain rate analysis using novel speckle-tracking echocardiography were performed and the results compared to those of a control group of children on chronic HD.

resultsFollowing carnitine supplementation, total (49.0 ± 1.67 vs. 298.0 ± 31.8 μmol/L) and free carnitine (29.0 ± 1.20 vs. 180.4 ± 19.2 μmol/L) increased (p < 0.0001), and the acyl:free (A:F) carnitine ratio improved (0.73 ± 0.04 vs. 0.65 ± 0.05; p = 0.02). There were no changes in standard ECHO measures of LV function, including end diastolic dimension, mass index, ejection fraction, and fractional shortening. There was significant (p = 0.017) improvement in the longitudinal strain rate (-1.48 ± 0.11 vs -1.91 ± 0.12) after carnitine supplementation in the study group. No improvements in LV function, strain, or strain rate occurred in controls.

conclusionsLevocarnitine supplementation improved carnitine levels, the A:F ratio, and longitudinal strain rate in children on HD.

Indexed as

AdolescentCardiomyopathiesCarnitineChildEchocardiographyFemaleHumansMaleRenal DialysisVentricular Function, LeftVitamin B ComplexYoung AdultCarnitineVitamin B Complex

Identifiers

PMID22438019
OpenAlexW2016711076

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.