Evidence map›Paper›PMID 34292506›Full record

ArticleInternational journal of hematology2021

Strong association between insufficient plasma exchange and fatal outcomes in Japanese patients with immune-mediated thrombotic thrombocytopenic purpura.

Michinori Kayashima, Kazuya Sakai, Kazuki Harada, Jun Kanetake, Masayuki Kubo, Eriko Hamada, Masaki Hayakawa, Kinta Hatakeyama, Masanori Matsumoto

Abstract read
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Article in International journal of hematology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. How We Interpret Thrombosis with Thrombocytopenia Syndrome?International journal of molecular sciences · 2024
    Review
  7. Review
  8. 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

9 authors.

Michinori Kayashima *Department of Blood Transfusion Medicine, Nara Medical University, 840 Shijo-Cho, Kashihara, 634-8522, Japan.
Kazuya Sakai *Department of Blood Transfusion Medicine, Nara Medical University, 840 Shijo-Cho, Kashihara, 634-8522, Japan.
Kazuki HaradaDepartment of Forensic Medicine, National Defense Medical College, Tokorozawa, Japan.
Jun KanetakeDepartment of Forensic Medicine, National Defense Medical College, Tokorozawa, Japan.
Masayuki KuboDepartment of Blood Transfusion Medicine, Nara Medical University, 840 Shijo-Cho, Kashihara, 634-8522, Japan.
Eriko HamadaDepartment of Blood Transfusion Medicine, Nara Medical University, 840 Shijo-Cho, Kashihara, 634-8522, Japan.
Masaki HayakawaDepartment of Blood Transfusion Medicine, Nara Medical University, 840 Shijo-Cho, Kashihara, 634-8522, Japan.
Kinta HatakeyamaDepartment of Pathology, National Cerebral and Cardiovascular Center, Suita, Japan.
Masanori MatsumotoDepartment of Blood Transfusion Medicine, Nara Medical University, 840 Shijo-Cho, Kashihara, 634-8522, Japan. mmatsumo@naramed-u.ac.jp.ORCID http://orcid.org/0000-0002-7243-3126

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plasma exchange (PEX) using fresh frozen plasma has considerably reduced the mortality rate in patients with immune-mediated thrombotic thrombocytopenic purpura (iTTP). However, some patients still do not survive even with treatment, but little information is available regarding which treatment these patients received. This study was conducted to obtain this information in 240 patients who met the current iTTP diagnostic criteria and completed at least 30 days of follow-up except for deceased cases. These patients were divided into three groups: survivors (n = 195), TTP-related deaths (n = 32), and other cause of death (n = 13). In the TTP-related death group, 26 of 32 patients experienced sudden death, mostly following radical hypotension and bradycardia. The median follow-up time after admission was 5.0 days, and the median number of PEX sessions was 2.5. Nine patients underwent autopsy and had cardiac microvascular thrombi in arterioles. Levels of lactate dehydrogenase, total bilirubin, serum creatinine, and D-dimer were significantly higher in the TTP-related death group than in the survivors group. Frequent PEX (> 20 sessions) was not associated with TTP-related death. In the acute phase of iTTP, patients with substantial organ damage caused by microthrombi have a greater mortality risk, even after just a few PEX sessions.

Indexed as

Plasma ExchangeBiomarkersBlood CoagulationBlood Coagulation TestsCause of DeathHealth Care SurveysHumansImmunohistochemistryJapanMortalityPatient CompliancePrognosisPurpura, Thrombotic ThrombocytopenicTreatment OutcomeBiomarkersAutopsyFatal outcomePlasma exchangeSudden deathThrombotic thrombocytopenic purpura

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Registered trials

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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.