Evidence map›Paper›PMID 36311697›Full record

Observational studyFrontiers in immunology2022

Clinical characteristics of hepatitis flares during pregnancy and postpartum in Chinese chronic hepatitis B virus carriers-a prospective cohort study of 417 cases.

Xiaoxiao Wang, Aixin Song, Xiao Lin, Junfeng Lu, Sujun Zheng, Lina Ma, Shan Ren, Yanhong Zheng, Xinyue Chen

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Frontiers in immunology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. [Chinese practice guidelines for the prevention and treatment of mother-to-child transmission of hepatitis B virus (version 2024)].Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology · 2024
    Guideline
  2. Article
  3. Article
  4. Observational
  5. Article
  6. Article
  7. Article
  8. Article
  9. Phenotypes of peripheral CD4Frontiers in cellular and infection microbiology · 2023
    Article
  10. 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 at 2 institutions in 1 country.

Xiaoxiao WangFirst Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Aixin SongFirst Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Xiao LinFirst Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Junfeng LuFirst Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Sujun ZhengFirst Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Lina MaFirst Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Shan RenFirst Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Yanhong ZhengFirst Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Xinyue ChenFirst Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Capital Medical University · CNBeijing YouAn Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: In China, it is common for pregnant women with a high load of hepatitis B virus (HBV) to take nucleos(t)ide analogue (NA) to prevent maternal-to-child transmission of HBV. However, the impact of NA intervention on virological and biochemical parameters in pregnant and postpartum women and the safety of drug cessation remain unclear. A prospective observational cohort was established in this study to analyze the clinical characteristics of hepatitis flares in pregnant and postpartum chronic HBV carriers, with or without NA intervention. Methods: Pregnant women who were chronic HBV carriers were enrolled in this study and divided into an NA intervention group and a non-intervention group according to their preferences. Liver function, HBV DNA level, and HBV serological markers were regularly measured during pregnancy and at approximately 6 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks postpartum. Results: A total of 417 patients were enrolled, including 303 in the NA intervention group and 114 in the non-intervention group. The incidence rates of postpartum hepatitis flares in both groups were higher than that of during pregnancy (45.7% vs 10.9%, p < 0.001; 41.2% vs 17.7%, p < 0.001). The second trimester was the peak of the incidence of flares during pregnancy and the incidence peak of postpartum flares was about 6 weeks postpartum. A total of 98% (145/148) of postpartum flares occurred within 24 weeks postpartum. After drug cessation, the incidence rate of flares was 34.1% (44/129). Conclusion: In pregnant chronic HBV carriers, a certain proportion of hepatitis flares occurred during pregnancy and postpartum regardless of whether NA intervention was used, and the incidence of postpartum flares (44.6%) was significantly higher than that (12.8%) of during pregnancy. The flare incidence peaked at approximately 6 weeks postpartum, which may be the time period suitable for treatment. Since 98% of postpartum flares occurred within 24 weeks postpartum, the follow-up after drug cessation should be at least 24 weeks postpartum.

Indexed as

Hepatitis B, ChronicPregnancy Complications, InfectiousAntiviral AgentsDNA, ViralFemaleHepatitis B virusHumansPostpartum PeriodPregnancyProspective StudiesSymptom Flare UpAntiviral AgentsDNA, Viralchronic HBV carriersdrug cessationhepatitis flarespostpartumpregnant women

Identifiers

PMID36311697
PMCPMC9606458
OpenAlexW4304822865

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.