Evidence map›Paper›PMID 36639209›Full record

ArticleBMJ open2023

Differences in patient characteristics, clinical practice and outcomes of cardiac implantable electric device therapy between Japan and the USA: a cross-sectional study using data from nationally representative administrative databases.

Reina Tonegawa-Kuji, Yuko Y Inoue, Michikazu Nakai, Koshiro Kanaoka, Yoko Sumita, Yuichiro Miyazaki, Akinori Wakamiya, Keiko Shimamoto, Nobuhiko Ueda, Kenzaburo Nakajima and 10 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 30% 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

4 citing papers in PubMed, 3 citations in OpenAlex.

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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

20 authors at 1 institution in 1 country.

Reina Tonegawa-KujiDepartment of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.ORCID 0000-0001-7998-939X
Yuko Y Inoue *Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan kusanokengo@hotmail.com yuko@ncvc.go.jp.
Michikazu NakaiDepartment of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Koshiro KanaokaDepartment of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.ORCID 0000-0001-7900-7835
Yoko SumitaDepartment of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Yuichiro MiyazakiDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Akinori WakamiyaDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Keiko ShimamotoDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.ORCID 0000-0001-6296-150X
Nobuhiko UedaDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Kenzaburo NakajimaDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Mitsuru WadaDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Tsukasa KamakuraDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.ORCID 0000-0002-3055-7913
Kenichiro YamagataDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Kohei IshibashiDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Koji MiyamotoDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Satoshi NagaseDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Takeshi AibaDepartment of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.ORCID 0000-0003-1779-7282
Yoshihiro MiyamotoDepartment of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Yoshitaka IwanagaDepartment of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Kengo Kusano *Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan kusanokengo@hotmail.com yuko@ncvc.go.jp.ORCID 0000-0002-5760-9285
National Cerebral and Cardiovascular Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo identify differences in patient characteristics, clinical practice and outcomes of cardiac implantable electronic device (CIED) therapy between Japan and the USA.

designA cross-sectional study.

settingNationally representative administrative databases from Japan and the USA containing hospitalisations with first-time implantations of pacemakers, implantable cardioverter-defibrillators (ICD) and cardiac-resynchronisation therapy with or without defibrillators (CRTP/CRTD).

participantsPatients hospitalised with first-time implantations of CIEDs. OUTCOME MEASURES: In-hospital mortality, in-hospital complication and 30-day readmission rates.

resultsOverall, 107 339 (median age 78 (71-84), 48 415 women) and 295 584 (age 76 (67-83), 127 349 women) records with CIED implantations were included from Japan and the USA, respectively. Proportion of women in defibrillator recipients was lower in Japan than in the USA (ICD, 21% vs 28%, p<0.001; CRTD, 24% vs 29%, p<0.001). Length of stay after CIED implantation was longer in Japan than in the USA for all device types (conventional pacemaker, 8(7-11) vs 1 (1-3) days, p<0.001; leadless pacemaker, 5 (3-9) vs 2 (1-5) days, p<0.001; ICD, 8 (7-11) vs 1 (1-3) days, p<0.001, CRTP, 9 (7-13) vs 2 (1-4) days, p<0.001; CRTD, 9 (8-14) vs 2 (1-4) days, p<0.001). In-hospital mortality after CIED implantation was similar between Japan and the USA ((OR) (95% CI), conventional pacemaker 0.58 (0.83 to 1.004); ICD 0.77 (0.57 to 1.03); CRTP 0.85 (0.51 to 1.44); CRTD 1.11 (0.81 to 1.51)), except that after leadless pacemaker implantation in Japan was lower than that in the USA (0.32 (0.23 to 0.43)). 30-day readmission rates were lower in Japan than in the USA for all device types (conventional pacemaker 0.55 (0.53 to 0.57); leadless pacemaker 0.50 (0.43 to 0.58); ICD 0.54 (0.49 to 0.58); CRTP 0.51 (0.42 to 0.62); CRTD 0.57 (0.51 to 0.64)).

conclusionsInternational variations in patient characteristics, practice and outcomes were observed. In-hospital mortality after CIED implantation was similar between Japan and the USA, except in cases of leadless pacemaker recipients.

Indexed as

Cardiac Resynchronization TherapyDefibrillators, ImplantablePacemaker, ArtificialAgedCross-Sectional StudiesFemaleHumansJapanRisk FactorsCardiac EpidemiologyCARDIOLOGYPacing & electrophysiology

Identifiers

PMID36639209
PMCPMC9843182
OpenAlexW4316174780

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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.