Evidence map›Paper›PMID 32267224›Full record

ArticleJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2020

Pulmonary artery hemodynamics are associated with duration of nocturnal desaturation but not apnea-hypopnea index.

Bilal Samhouri, Mrinalini Venkatasaburamini, Hugo Paz Y Mar, Manshi Li, Reena Mehra, Neal F Chaisson

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Observational
  5. Article
  6. Sensitivity to remifentanil and its predictive factor in male patients with moderate to severe obstructive sleep apnea syndrome.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2023
    Article
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  8. Obstructive sleep apnea and pulmonary hypertension: the pendulum swings again.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2023
    Article
  9. Article
  10. Article
  11. Review
  12. PAP therapy in patients with idiopathic pulmonary fibrosis and obstructive sleep apnea: multum non multa.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021
    Article
  13. Response to "Sleep apnea and pulmonary hypertension: connecting the dots".Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021
    Article
  14. Sleep apnea and pulmonary hypertension: connecting the dots.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021
    Article
  15. Obstructive sleep apnea and pulmonary hypertension: a bidirectional relationship.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2020
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Bilal SamhouriMedicine Institute, Cleveland Clinic, Cleveland, Ohio.
Mrinalini VenkatasaburaminiMedicine Institute, Cleveland Clinic, Cleveland, Ohio.
Hugo Paz Y MarPulmonary, Critical Care and Sleep Medicine Division, MetroHealth Medical Center, Cleveland, Ohio.
Manshi LiDepartment of Health Sciences, Cleveland Clinic, Cleveland, Ohio.
Reena MehraSleep Disorders Center, Neurologic Institute, Respiratory Institute, Heart and Vascular Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio.
Neal F ChaissonRespiratory Institute, Cleveland Clinic, Cleveland, Ohio.
Cleveland Clinic · USCleveland Clinic Lerner College of Medicine · USMetroHealth · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesSleep-disordered breathing and nocturnal hypoxia are prevalent among patients with precapillary pulmonary hypertension (PAH). The rationale for these associations remains unclear and these relationships have not been well studied in other forms of pulmonary hypertension (PH). We hypothesized that severity of sleep-disordered breathing and nocturnal hypoxia are associated with worsening pulmonary hemodynamics, regardless of hemodynamic profile.

methodsFour hundred ninety-three patients were divided into 4 groups: 1) no PH, 2) postcapillary pulmonary hypertension, 3) PAH, and 4) mixed PAH/postcapillary pulmonary hypertension. The relationship between right heart catheterization measurements and apnea-hypopnea index or the percentage of sleep time spent with oxygen saturation < 90% (T90) was calculated using multiple linear regression. Analysis of variance was used for between-group comparisons. Statistical models were adjusted for known confounders.

resultsApnea-hypopnea index did not differ between hemodynamic subgroups (P = .27) and was not associated with right atrial pressure (.11 ± .19, P = .55), cardiac index (.25 ± 1.64, P = .88), mean pulmonary artery pressure (-.004 ± .09, P = .97), or pulmonary artery occlusion pressure (.16 ± .14, P = .26). While patients with PH had a higher T90 than those without (mean 24.2% vs 11.7%, P < .001), there was no difference in T90 between individual PH subgroups (P = .70). T90 was associated with mean pulmonary artery pressure (.55 ± .10, P < .0001), PVR (1.61 ± .49, P = .001), and right atrial pressure (.50 ± .20, P = .01), but not cardiac index (-.76 ± 1.73, P = .66), or pulmonary artery occlusion pressure (.23 ± .15, P = .13).

conclusionsIncreased PH severity was associated with longer duration of nocturnal hypoxia regardless of hemodynamic subgroup.

Indexed as

Hypertension, PulmonarySleep Apnea SyndromesHemodynamicsHumansHypoxiaPulmonary Arteryhemodynamicspulmonary hypertensionsleep apnea syndromes

Identifiers

PMID32267224
PMCPMC7446085
OpenAlexW3015009817

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.