Evidence map›Paper›PMID 23319325›Full record

ArticleSleep & breathing = Schlaf & Atmung2013

Genetics correlates with lung function and nocturnal ventilation in myotonic dystrophy.

Regina Monteiro, João Bento, Miguel R Gonçalves, Tiago Pinto, João Carlos Winck

Abstract read
PubMed Publisher
In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
0.7field-weighted citation impact, top 33% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. A systematic review of the frequency of sleep evaluations, sleep disorders, and treatments among individuals with muscular dystrophy.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026
    Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Predictors of prognosis in type 1 myotonic dystrophy (DM1): longitudinal 18-years experience from a single center.Acta myologica : myopathies and cardiomyopathies : official journal of the Mediterranean Society of Myology · 2020
    Observational
  12. Article
  13. Review
  14. 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

5 authors at 3 institutions in 1 country.

Regina MonteiroPulmonology Department, Hospital Center of Vila Nova de Gaia/Espinho, Unidade 1, 4434-502 Vila Nova de Gaia, Portugal.
João Bento
Miguel R Gonçalves
Tiago Pinto
João Carlos Winck
Hospital de São João · PTCentro Hospitalar de Vila Nova de Gaia · PTIPO Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDystrophia myotonica (DM) is the most frequent adult-onset muscular dystrophy. Type 1 is caused by the cytosine-thymine-guanine (CTG) repeat expansion in the DM protein kinase gene. Respiratory muscle weakness and altered central ventilatory control lead to hypercapnia and lung volume restriction. PURPOSE: This study aims to review the respiratory involvement in DM patients and study its relation with genetics.

methodsRetrospective study of patients with DM referred for respiratory assessment was made. Noninvasive ventilation (NIV) was considered to daytime hypercapnia or symptoms of nocturnal hypoventilation.

resultsForty-two consecutive patients (37.9 ± 13.6 years) were evaluated. Mean CTG length was 642.8 ± 439.2 repeats. In the first evaluation, mean forced vital capacity (FVC) was 74.4 ± 20.2 %, maximal expiratory pressure (MEP) 35 ± 16 %, maximal inspiratory pressure 52 ± 23 %, peak cough flow (PCF) 327.3 ± 97.7 L/min, arterial pressure of oxygen 79.7 ± 11.3 mmHg, arterial pressure of carbon dioxide 45.5 ± 6.2 mmHg, overnight minimal peripheral oxygen saturation (SpO2) 79.6 ± 11.6 %, and apnea-hypopnea index 13.9 ± 9.9. CTG length was found to be related with MEP (r = -0.67; p = 0.001) and SpO2 (r = -0.37; p = 0.039). NIV was started in 25 patients. Ventilated patients had lower FVC (2.19 to 3.21 L; p < 0.001) and PCF (285.3 to 388.5 L/min; p = 0.003) and more CTG repeats (826.6 to 388.5 repeats; p = 0.02). NIV compliance was poor in seven patients (28 %) and related with hypercapnia (r = 0.87; p = 0.002) and inspiratory positive airway pressure setting (r = 0.65; p = 0.009). Ventilation improved symptoms and nocturnal hypoventilation. Comparing the first and last evaluations, only PCF was significantly lower (275.0 to 310.8 L/min; p = 0.019).

conclusionsVentilatory insufficiency is very common in patients with DM and CTG length may be useful to predict it. Prolonged NIV improves symptoms, nocturnal hypoventilation and maintains daily blood gases. Routine evaluation of PCF should not be forgotten and assisted coughing training provided.

Indexed as

Lung Volume MeasurementsAdolescentAdultAgedCarbon DioxideFemaleHumansMaleMiddle AgedMyotonic DystrophyMyotonin-Protein KinaseOxygenPrognosisProtein Serine-Threonine KinasesRespiratory InsufficiencyRetrospective StudiesCarbon DioxideDMPK protein, humanMyotonin-Protein KinaseOxygenProtein Serine-Threonine Kinases

Identifiers

PMID23319325
OpenAlexW2119790098

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.