Evidence map›Paper›PMID 30497293›Full record

ArticleJournal of cardiovascular pharmacology and therapeutics2019

Intravenous Amiodarone and Sotalol Impair Contractility and Cardiac Output, but Procainamide Does Not: A Langendorff Study.

Charles Mackin, Elizabeth S DeWitt, Katherine J Black, Xiaoqi Tang, Brian D Polizzotti, Sarah J van den Bosch, Mark E Alexander, John N Kheir

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of cardiovascular pharmacology and therapeutics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.5field-weighted citation impact, top 29% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
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  4. Pediatric antiarrhythmics and toxicity: A clinical review.Journal of the American College of Emergency Physicians open · 2024
    Review
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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 1 institution in 2 countries.

Charles Mackin1 Department of Cardiology at Boston Children's Hospital and the Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
Elizabeth S DeWitt1 Department of Cardiology at Boston Children's Hospital and the Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
Katherine J Black1 Department of Cardiology at Boston Children's Hospital and the Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
Xiaoqi Tang1 Department of Cardiology at Boston Children's Hospital and the Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
Brian D Polizzotti1 Department of Cardiology at Boston Children's Hospital and the Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
Sarah J van den Bosch1 Department of Cardiology at Boston Children's Hospital and the Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
Mark E Alexander1 Department of Cardiology at Boston Children's Hospital and the Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
John N Kheir1 Department of Cardiology at Boston Children's Hospital and the Department of Pediatrics, Harvard Medical School, Boston, MA, USA.ORCID 0000-0001-6080-8739
Boston Children's Hospital · US

Funding

RESEARCH METHODS IN PEDIATRICS HEART DISEASET32HL007572 · NHLBI · CHILDREN'S HOSPITAL BOSTON · PI Sarah D DE FERRANTI, Jane W. Newburger · 1985 to 2026
$13.0M
NHLBI NIH HHS T32 HL007572
6 · The paper itself

Abstract

introductionDirect comparison of the effects of antiarrhythmic agents on myocardial performance may be useful in choosing between medications in critically ill patients. Studies directly comparing multiple antiarrhythmic medications are lacking. The use of an experimental heart preparation permits examination of myocardial performance under constant loading conditions.

methodsHearts of Sprague Dawley rats (n = 35, 402-507 g) were explanted and cannulated in working heart model with fixed preload and afterload. Each heart was then exposed to a 3-hour infusion of procainamide (20 µg/kg/min), esmolol (100 or 200 µg/kg/min), amiodarone (10 or 20 mg/kg/d), sotalol (80 mg/m

resultsCompared with placebo, sotalol decreased contractility by an average of 24% ( P < .001) over the infusion period, as did amiodarone (low dose by 13%, P = .029; high dose by 14%, P = .013). Compared with placebo, mean cardiac output was significantly lower in animals treated with sotalol (by 22%, P = .016) and esmolol 200 μg/kg/min (by 23%, P = .012). Over time, amiodarone decreased cardiac output (20 mg/kg/d, β = -89 [-144, -33] μL/min

conclusionsIn isolated hearts, amiodarone and sotalol depressed myocardial contractility, cardiac output, and diastolic function. However, procainamide did not negatively affect myocardial performance and represents a favorable agent in settings of therapeutic equivalence.

Indexed as

AmiodaroneAnimalsAnti-Arrhythmia AgentsCardiac OutputDose-Response Relationship, DrugInfusions, IntravenousIsolated Heart PreparationMyocardial ContractionProcainamideRats, Sprague-DawleyRisk AssessmentSotalolVentricular Function, LeftAmiodaroneAnti-Arrhythmia AgentsProcainamideSotalolantiarrhythmiccontractilityintensive care

Identifiers

PMID30497293
PMCPMC6980379
OpenAlexW2902989496

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.