Evidence map›Paper›PMID 36314431›Full record

ArticleAnnals of clinical and translational neurology2022

Effects of pregnancy on neuromyelitis optica spectrum disorder and predictors of related attacks.

Qin Du, Ziyan Shi, Hongxi Chen, Ying Zhang, Yuhan Qiu, Yanlin Lang, Lingyao Kong, Hongyu Zhou

Open access · goldAbstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 24% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Guideline
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
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 1 country.

Qin DuDepartment of Neurology, West China Hospital, Sichuan University, Guo Xuexiang #37, Chengdu, 610041, China.
Ziyan ShiDepartment of Neurology, West China Hospital, Sichuan University, Guo Xuexiang #37, Chengdu, 610041, China.
Hongxi ChenDepartment of Neurology, West China Hospital, Sichuan University, Guo Xuexiang #37, Chengdu, 610041, China.
Ying ZhangDepartment of Neurology, West China Hospital, Sichuan University, Guo Xuexiang #37, Chengdu, 610041, China.
Yuhan QiuDepartment of Neurology, West China Hospital, Sichuan University, Guo Xuexiang #37, Chengdu, 610041, China.
Yanlin LangDepartment of Neurology, West China Hospital, Sichuan University, Guo Xuexiang #37, Chengdu, 610041, China.
Lingyao KongDepartment of Neurology, West China Hospital, Sichuan University, Guo Xuexiang #37, Chengdu, 610041, China.
Hongyu ZhouDepartment of Neurology, West China Hospital, Sichuan University, Guo Xuexiang #37, Chengdu, 610041, China.ORCID 0000-0002-7637-1305
Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveOur study aimed to investigate the influence of pregnancy on the course of neuromyelitis optica spectrum disorders (NMOSD) and to explore the independent predictors of pregnancy-related attacks.

methodsWe performed a retrospective study of patients with NMOSD based on the Wingerchuk 2006 or the revised Wingerchuk 2015 criteria. Demographic, clinical, and pregnancy data were recorded. We compared the annualized relapse rate (ARR) before, during, and after pregnancy. The Expanded Disability Status Scale (EDSS) score was used to assess the degree of disability. Multivariate Cox proportional hazards models were used to identify the independent risk factors that predict pregnancy-related attacks.

resultsThere were 202 informative pregnancies following symptom onset in 112 women with NMOSD. The ARR in the first-trimester postpartum period (1.44 ± 2.04) was higher than that before pregnancy (0.23 ± 0.48; p < 0.001) and during pregnancy. The EDSS score increased from 1.40 ± 1.38 before pregnancy to 1.99 ± 1.78 postpartum (p = 0.004). Multivariate Cox proportional hazards models indicated that increased disease activity 1 year before conception (HR = 1.79, 95% CI 1.09-2.92, p = 0.021) and lack of immunotherapy during pregnancy and the postpartum period (HR = 5.25, 95% CI 1.91-14.42, p = 0.001) were independent risk factors that predicted pregnancy-related attacks.

interpretationThe postpartum period is a particularly high-risk time for the onset and relapse of NMOSD. Pregnancy exerted detrimental effects on the disease courses of NMOSD. Immunotherapy during pregnancy and the postpartum period might be recommended to decrease the risk of pregnancy-related attacks. Larger-scale prospective studies are warranted to confirm our findings.

Indexed as

Neuromyelitis OpticaDisease ProgressionFemaleHumansPostpartum PeriodPregnancyRecurrenceRetrospective Studies

Identifiers

PMID36314431
PMCPMC9735372
OpenAlexW4307687734

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.