Evidence map›Paper›PMID 19552745›Full record

ArticleBritish journal of clinical pharmacology2009

Amiodarone concentrations in plasma and fat tissue during chronic treatment and related toxicity.

Carmelo Lafuente-Lafuente, Jean-Claude Alvarez, Antoine Leenhardt, Stéphane Mouly, Fabrice Extramiana, Charles Caulin, Christian Funck-Brentano, Jean-François Bergmann

Open access · bronzeAbstract read
In one paragraph

Article in British journal of clinical pharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 10% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.

  1. Pooled it
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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 5 institutions in 2 countries.

Carmelo Lafuente-LafuenteAP-HP, Hôpital Lariboisière, Department of Internal Medicine A, Paris, France. lafuente@nodo3.net
Jean-Claude Alvarez
Antoine Leenhardt
Stéphane Mouly
Fabrice Extramiana
Charles Caulin
Christian Funck-Brentano
Jean-François Bergmann
Hôpital Lariboisière · FRAssistance Publique – Hôpitaux de Paris · FRHôpital Raymond-Poincaré · FRInserm · FRUniversité Sorbonne Paris Nord · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo determine if amiodarone, highly lipophilic, accumulates in excess with respect to dose in fat tissue during long-term administration, and study if plasma and fat tissue concentrations are correlated with adverse effects.

methodsTrough concentrations of amiodarone and N-desethyl-amiodarone were measured simultaneously in plasma and fat tissue, in 30 consecutive patients treated with amiodarone for 3 months to 12 years. Subcutaneous adipose tissue was obtained by needle aspiration from lumbar and abdominal areas. Concentrations were measured by liquid chromatography-tandem mass spectrometry.

resultsPlasma levels of amiodarone and N-desethyl-amiodarone were significantly correlated with daily maintenance doses (R= 0.52, P= 0.003). Amiodarone concentrations in fat tissue were four to 226 times (mean 55) higher than in plasma, and well correlated with plasma levels (R= 0.68, P < 0.001). Concentrations of amiodarone and N-desethyl-amiodarone in adipose tissue did not significantly increase with higher total cumulated doses or longer treatment duration. Nine of 12 patients who had received amiodarone for > or =2 years developed clinically important adverse effects, predominantly hypothyroidism (n= 6), compared with two of 18 patients treated for less time (relative risk 6.75; 95% confidence interval 1.8, 26). The incidence of those adverse effects was not significantly associated with amiodarone concentrations, whether in plasma or in adipose tissue.

conclusionsWe found no evidence of excessive or unexpected accumulation of amiodarone in fat tissue on long-term administration. Late amiodarone adverse effects, particularly hypothyroidism, are associated with longer exposure times, but do not seem to be explained by higher concentrations in plasma or in fat tissue.

Indexed as

Adipose TissueAdultAgedAged, 80 and overAmiodaroneAnti-Arrhythmia AgentsFemaleHeart DiseasesHumansMaleMiddle AgedPlasmaRisk FactorsAmiodaroneAnti-Arrhythmia Agents

Identifiers

PMID19552745
PMCPMC2686067
OpenAlexW2165824122

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.