Evidence map›Paper›PMID 34952881›Full record

ArticleBMJ open2021

Melatonin for prevention of postoperative delirium after lower limb fracture surgery in elderly patients (DELIRLESS): study protocol for a multicentre randomised controlled trial.

Stéphanie Sigaut, Camille Couffignal, Marina Esposito-Farèse, Vincent Degos, Serge Molliex, Jacques Boddaert, Agathe Raynaud-Simon, Isabelle Durand-Zaleski, Estelle Marcault, Madalina Jacota and 3 more

Registry-linked trialOpen access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04335968 (Melatonin for Prevention of Postoperative Delirium After Lower Limb Fracture Surgery in Elderly Patients), which is not on this map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 29% 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.

NCT04335968 phase3completednot on this map

Melatonin for Prevention of Postoperative Delirium After Lower Limb Fracture Surgery in Elderly Patients: a Randomized Controlled Trial

TypeinterventionalSponsorAssistance Publique - Hôpitaux de ParisRan2021 to 2025Enrolled357ConditionsOrthopedic SurgeryArmsMelatonin 4 mg, Placebo oral tablet
3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
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

13 authors at 7 institutions in 1 country.

Stéphanie SigautAnesthesiology and Intensive Care, Hôpital Beaujon, Clichy, France stephanie.sigaut@aphp.fr.ORCID 0000-0002-4888-7769
Camille CouffignalUnité de recherche Clinique, Hôpital Bichat - Claude-Bernard, Paris, Île-de-France, France.
Marina Esposito-FarèseUnité de recherche Clinique, Hôpital Bichat - Claude-Bernard, Paris, Île-de-France, France.
Vincent DegosAnesthesiology and Intensive Care, University Hospital Pitié Salpêtrière, Paris, Île-de-France, France.
Serge MolliexAnesthesie Reanimation, Centre Hospitalier Universitaire de Saint-Etienne, Saint-Etienne, Rhône-Alpes, France.
Jacques BoddaertFaculty of Health, Sorbonne Universite, Paris, Île-de-France, France.
Agathe Raynaud-SimonGeriatric Medicine, Hôpital Bichat - Claude-Bernard, Paris, Île-de-France, France.
Isabelle Durand-ZaleskiURC Eco, Hôpital Hôtel-Dieu de Paris, Paris, Île-de-France, France.
Estelle MarcaultUnité de recherche Clinique, Hôpital Bichat - Claude-Bernard, Paris, Île-de-France, France.
Madalina JacotaURC HUPIFO, Hopital Ambroise-Pare, Boulogne-Billancourt, Île-de-France, France.
Souhayl DahmaniFaculty of Health, Université de Paris, Paris, Île-de-France, France.
Catherine Paugam-BurtzFaculty of Health, Université de Paris, Paris, Île-de-France, France.
Emmanuel WeissAnesthesiology and Intensive Care, Hôpital Beaujon, Clichy, France.
Université Paris Cité · FRHôpital Bichat-Claude-Bernard · FRSorbonne Université · FRCentre Hospitalier Universitaire de Saint-Étienne · FRHôpital Ambroise-Paré · FRHôtel-Dieu de Paris · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPostoperative delirium (POD) is one of the most frequent complication after surgery in elderly patients, and is associated with increased morbidity and mortality, prolonged length of stay, cognitive and functional decline leading to loss of autonomy, and important additional healthcare costs. Perioperative inflammatory stress is a key element in POD genesis. Melatonin exhibits antioxidative and immune-modulatory proprieties that are promising concerning delirium prevention, but in perioperative context literature are scarce and conflicting. We hypothesise that perioperative melatonin can reduce the incidence of POD. METHODS AND ANALYSIS: The DELIRLESS trial is a prospective, national multicentric, phase III, superiority, comparative randomised (1:1) double-blind clinical trial. Among patients aged 70 or older, hospitalised and scheduled for surgery of a severe fracture of a lower limb, 718 will be randomly allocated to receive either melatonin 4 mg per os or placebo, every night from anaesthesiologist preoperative consultation and up to 5 days after surgery. The primary outcome is POD incidence measured by either the French validated translation of the Confusion Assessment Method (CAM) score for patients hospitalised in surgery, or CAM-ICU score for patients hospitalised in ICU (Intensive Care Unit). Daily delirium assessment will take place during 10 days after surgery, or until the end of hospital stay if it is shorter. POD cumulative incidence function will be compared at day 10 between the two randomised arms in a competing risks framework, using the Fine and Grey model with death as a competing risk of delirium. ETHICS AND DISSEMINATION: The DELIRLESS trial has been approved by an independent ethics committee the Comité de Protection des Personnes (CPP) Sud-Est (ref CPP2020-18-99 2019-003210-14) for all study centres. Participant recruitment begins in December 2020. Results will be published in international peer-reviewed medical journals. TRIAL REGISTRATION NUMBER: NCT04335968, first posted 7 April 2020. PROTOCOL VERSION IDENTIFIER: N°3-0, 3 May 2021.

Indexed as

DeliriumHip FracturesMelatoninAgedDouble-Blind MethodEquivalence Trials as TopicHumansLower ExtremityMulticenter Studies as TopicProspective StudiesRandomized Controlled Trials as TopicMelatoninanaesthesia in orthopaedicsdelirium & cognitive disordersgeriatric medicinehip

Identifiers

PMID34952881
PMCPMC8713016
OpenAlexW4200444963

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.