Evidence map›Paper›PMID 26951410›Full record

ArticleJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2016

Nocturnal Hot Flashes: Relationship to Objective Awakenings and Sleep Stage Transitions.

Matt T Bianchi, Semmie Kim, Thania Galvan, David P White, Hadine Joffe

Erratum issued Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT01116401 (Impact of Experimentally Induced Hot Flashes on Sleep and Mood Disturbance), which is not on this map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.0field-weighted citation impact, top 15% 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.

NCT01116401 phase4completednot on this map

Impact of Experimentally Induced Hot Flashes on Sleep and Mood Disturbance

TypeinterventionalSponsorMassachusetts General HospitalRan2009 to 2012Enrolled29ConditionsMenopause, Depression, Hot FlashesArmsleuprolide
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 38 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Effects of menopause on temperature regulation.Temperature (Austin, Tex.) · 2025
    Review
  9. Review
  10. Article
  11. Optimizing sleep across the menopausal transition.Climacteric : the journal of the International Menopause Society · 2023
    Article
  12. Hot flashes, insomnia, and the reproductive stages: a cross-sectional observation of women from the EPISONO study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021
    Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Matt T BianchiSleep Division, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
Semmie KimWomen's Hormones and Aging Research Program, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Thania GalvanWomen's Hormones and Aging Research Program, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
David P WhiteBrigham and Women's Hospital, Harvard Medical School, Boston, MA.
Hadine JoffeWomen's Hormones and Aging Research Program, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Brigham and Women's Hospital · USHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesWhile women report sleep interruption secondary to nighttime hot flashes, the sleep disrupting impact of nocturnal hot flashes (HF) is not well characterized. We utilized a model of induced HF to investigate the relationship of nighttime HF to sleep architecture and sleep-stage transitions.

methodsTwenty-eight healthy, premenopausal volunteers received the depot gonadotropin-releasing hormone agonist (GnRHa) leuprolide to rapidly induce menopause, manifesting with HF. Sleep disruption was measured on 2 polysomnograms conducted before and after 4-5 weeks on leuprolide, when HF had developed.

results165 HF episodes were recorded objectively during 48 sleep studies (mean 3.4 HF/night). After standardizing to sleep-stage time distribution, the majority of HF were recorded during wake (51.0%) and stage N1 (18.8%). Sixty-six percent of HF occurred within 5 minutes of an awakening, with 80% occurring just before or during the awakening. Objective HF were not associated with sleep disruption as measured by increased transitions to wake or N1, but self-reported nocturnal HF correlated with an increase from pre- to post-leuprolide in the rate of transitions to wake (p = 0.01), and to N1 (p = 0.008).

conclusionsBy isolating the effect of HF on sleep in women without the confound of age-related sleep changes associated with natural menopause, this experimental model shows that HF arise most commonly during N1 and wake, typically preceding or occurring simultaneously with wake episodes. Perception of HF, but not objective HF, is linked to increased sleep-stage transitions, suggesting that sleep disruption increases awareness of and memory for nighttime HF events. CLINICAL

trial registrationClinicalTrials.gov Identifier: NCT01116401.

Indexed as

AdolescentAdultFemaleHot FlashesHumansLeuprolideMenopauseMiddle AgedPolysomnographyPremenopauseSleep Initiation and Maintenance DisordersSleep StagesWakefulnessYoung AdultLeuprolidehot flashesmenopausepolysomnographysleepsleep architecturesleep disruptionsleep stagessleep-wake stagesvasomotor symptom

Identifiers

PMID26951410
PMCPMC4918982
OpenAlexW2463338183

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.