The Impact of Telemedicine, Using the Caller's Mobile Phone Camera, on the Quality of Care Provided to Adult Patients Contacting the 15 Centre for Acute Dyspnea (TELEDYS)
Video-assisted TELEmedecine for Medical Dispatch of Adult Patients Calling to an Emergency Medical Communication Centre for Acute DYSpnea: a Multicentre Stepped-wedge Cluster Randomised Controlled Study
Dyspnea is the subjective sensation of difficult or uncomfortable breathing. It accounts for approximately 10% of emergency department visits and 8% of calls to Emergency Medical Communication Centers. Nearly half of patients presenting with dyspnea require hospital admission, 15% require ventilatory support, and approximately 5% die. Early recognition of signs of respiratory severity is therefore essential to accurately assess clinical urgency, guide diagnostic evaluation, and inform appropriate management decisions.
In France, patients are encouraged to contact an Emergency Medical Communication Centers before presenting to an emergency department. Calls are managed by an emergency physician responsible for medical regulation, who performs a remote clinical assessment and determines the most appropriate level of care. Depending on the clinical evaluation, the physician may provide medical advice, refer the patient to an emergency department, dispatch emergency medical services, or send a physician-staffed mobile intensive care unit for life-threatening emergencies.
The remote assessment of patients presenting with dyspnea is particularly challenging. The inability to directly observe or examine the patient, combined with the caller's difficulty in accurately describing the clinical situation, may impair the recognition of disease severity and result in inappropriate triage decisions, including under-triage and over-triage :
Under-triage, characterized by failure to dispatch appropriate emergency resources or to refer the patient to an emergency department when indicated, may delay treatment and increase the risk of adverse outcomes, including mortality.
Conversely, over-triage, defined as unnecessary referral to primary care or emergency departments or inappropriate dispatch of emergency resources, contributes to emergency department overcrowding, inefficient use of prehospital resources, and increased healthcare costs.
In a previous study, the investigators demonstrated that video-assisted medical triage improved emergency physicians' ability to assess the severity of patients presenting with acute dyspnea. This telemedicine tool enables real-time transmission of a live video stream from the caller's smartphone camera to the emergency physician through a secure digital platform, providing direct visualization of the patient's clinical condition. By enhancing remote clinical assessment, video-assisted triage has the potential to reduce both under-triage and over-triage.
In the present stepped-wedge cluster randomized trial, the investigators hypothesized that incorporating real-time video support into the medical regulation of adult patients contacting an Emergency Medical Communication Centers for acute dyspnea would improve the quality of medical decision-making compared with standard telephone triage alone.
Tutkimuksen yleiskatsaus
Tila
Tila
Ehdot
Ehdot
Interventio / Hoito
Interventio / Hoito
Opintotyyppi
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Ilmoittautuminen
Vaihe
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Opiskeluyhteys
Opiskeluyhteys
- Nimi: Nicolas MARJANOVIC
- Puhelinnumero: +33549441873
- Sähköposti: nicolas.marjanovic@chu-poitiers.fr
Tutki yhteystietojen varmuuskopiointi
- Nimi: Sabrina SEGUIN
- Puhelinnumero: +33549443229
- Sähköposti: sabrina.seguin@chu-poitiers.fr
Opiskelupaikat
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Angers, Ranska, 49933
- Rekrytointi
- University Hospital of Angers
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Ottaa yhteyttä:
- Dominique SAVARY
- Puhelinnumero: +33665807179
- Sähköposti: dominique.savary@chu-angers.fr
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Bayonne, Ranska, 64100
- Rekrytointi
- Bayonne Hospital Center
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Ottaa yhteyttä:
- Xavier PEREIRA
- Puhelinnumero: +33559443108
- Sähköposti: xpereira@ch-cotebasque.fr
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La Roche-sur-Yon, Ranska, 85925
- Rekrytointi
- La Roche sur Yon Hospital
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Ottaa yhteyttä:
- Julie BERGER LAILLET
- Puhelinnumero: +33251446205
- Sähköposti: julie.berger-maillet@ght85.fr
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La Rochelle, Ranska, 17000
- Rekrytointi
- La Rochelle Hospital
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Ottaa yhteyttä:
- Maxime JONCHIER
- Puhelinnumero: +33546455050
- Sähköposti: maxime.jonchier@ght-atlantique17.fr
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Montpellier, Ranska, 34090
- Rekrytointi
- University Hospital of Montpellier
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Ottaa yhteyttä:
- Hamza GHOMRANI
- Puhelinnumero: +33467339505
- Sähköposti: samu-sec@chu-montpellier.fr
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Nancy, Ranska, 54000
- Rekrytointi
- University Hospital of Nancy
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Ottaa yhteyttä:
- Tahar CHOUIHED
- Puhelinnumero: +33383851496
- Sähköposti: t.chouihed@chru-nancy.fr
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Poitiers, Ranska, 86021
- Rekrytointi
- University Hospital of Poitiers
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Ottaa yhteyttä:
- Nicolas MARJANOVIC
- Puhelinnumero: +33549441873
- Sähköposti: nicolas.marjanovic@chu-poitiers.fr
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Rennes, Ranska, 35000
- Rekrytointi
- University Hospital of Rennes
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Ottaa yhteyttä:
- Paul-Georges REUTER
- Puhelinnumero: +33661884684
- Sähköposti: paul-georges.reuter@chu-rennes.fr
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Strasbourg, Ranska, 67097
- Rekrytointi
- University Hospital of Strasbourg
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Ottaa yhteyttä:
- Raphaël CLERE-JEHL, MD
- Puhelinnumero: +33369551335
- Sähköposti: sabrina.garnier-kepka@chru-strasbourg.fr
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Toulouse, Ranska, 31058
- Rekrytointi
- University Hospital of Toulouse
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Ottaa yhteyttä:
- Frédéric BALEN
- Puhelinnumero: +33561772579
- Sähköposti: balen.f@chu-toulouse.fr
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Osallistumiskriteerit
Kelpoisuusvaatimukset
Kelpoisuusvaatimukset
Opintokelpoiset iät
Hyväksyy terveitä vapaaehtoisia
Sukupuolet, jotka voivat opiskella
Kuvaus
Inclusion Criteria:
- Patients aged 18 or over
- Contacting the Emergency Medical Communication Center regarding acute dyspnea, respiratory distress or shortness of breath, as the main reason for the call, regardless of the underlying cause
- The patient or a bystander must have a mobile phone equipped with a camera and capable of making video calls
- Emergency inclusion authorized by the emergency physician responsible for medical regulation in accordance with the emergency consent procedure applicable at the time of the call
Non-inclusion Criteria:
- An immediate life-threatening emergency justifying the dispatch of an emergency response team on an automatic basis in accordance with local protocols
- Patient at the end of life or where a decision to limit treatment is known at the time of the call.
- Refusal to use telemedicine
- Lack of a telephone network enabling video consultation.
- Patient already included in the study.
- Individuals requiring enhanced protection, namely minors, pregnant or breastfeeding women, persons deprived of their liberty by a judicial or administrative decision, and adults under legal guardianship known at the time of the call
Exclusion criteria (post-inclusion):
- Refusal to pursue the study (patient or relative consent withdrawal).
- Patient not benefiting from a social security system.
- Free subject, without guardianship nor subordination.
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Diagnostiikka
- Jako: Satunnaistettu
- Inventiomalli: Peräkkäinen tehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseiden lukumäärä
Aseet ja interventiot
Osallistujaryhmä / ArmOsallistujaryhmä / Arm |
Interventio / HoitoInterventio / Hoito |
|---|---|
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Ei väliintuloa: Standard medical dispatching process (Control group)
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Kokeellinen: Addition of telemedecine to standard medical dispatching process (Experimental group)
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Patients included during the intervention phase will undergo video-assisted medical triage. Video-assisted triage will be performed using a secure web-based telemedicine hosted on a certified health data server. The emergency physician responsible for medical regulation will send a secure web link via SMS to the caller's smartphone or, when appropriate, to the smartphone of a relative or bystander. Once the link has been activated, a live video stream captured by the smartphone camera will be securely transmitted in real time to the physician's workstation at the Emergency Medical Communication Center, enabling direct visualization of the patient's clinical condition during the remote assessment. |
Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Proportion of inappropriate medical dispatch decisions (under-triage or over-triage)
Aikaikkuna: 24 hours
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Under-triage is defined as the assignment of a level of response that is insufficient for the patient's actual clinical needs. Under-triage is defined: 1) either as a patient receiving a medical advice alone at the initial call and within 24 hours; referred to an ED after a second call to EMCC or non-scheduled hospitalization or death or secondary EMS unit dispatched; 2) either as a patient initially dispatched to an ED (not with an EMS) and within 3 hours; required ventilatory support or cardiac arrest or death or secondary EMS unit dispatched. Over-triage is defined as the assignment of a level of response that exceeds the patient's actual clinical needs. Over-triage is defined as an EMS unit being dispatched or a patient being referred to an ED after the initial call to an EMCC and, at the end of emergency management, no additional examination, no specific treatment , no hospitalization being required within 24 hours following the call to the EMCC. |
24 hours
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Toissijaiset tulostoimenpiteet
Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Proportion of patients in under-triage situation
Aikaikkuna: 24 hours
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Definition of under-triage is given in the primary outcome. |
24 hours
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Proportion of patients in over-triage situation
Aikaikkuna: 24 hours
|
Definition of over-triage is given in the primary outcome |
24 hours
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Proportion of patients requiring advanced respiratory support (defined as any oxygenation or ventilatory support beyond conventional oxygen therapy)
Aikaikkuna: 3 hours, 24 hours, 28 days
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3 hours, 24 hours, 28 days
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Proportion of patients admitted to an intensive care unit
Aikaikkuna: 24 hours
|
24 hours
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Proportion of patients experiencing cardiac arrest
Aikaikkuna: 3 hours, 24 hours, 28 days
|
3 hours, 24 hours, 28 days
|
|
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Proportion of deceased patients
Aikaikkuna: 3 hours, 24 hours, 28 days
|
3 hours, 24 hours, 28 days
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|
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Duration of the medical regulation process
Aikaikkuna: Immediately after the call to the EMCC
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Duration of the call to the EMCC is defined as the time between the beginning of the call and the medical decision (assessed in minutes) |
Immediately after the call to the EMCC
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Incremental cost-effectiveness ratio
Aikaikkuna: 28 days
|
The incremental cost-effectiveness ratio is defined as the difference in mean costs divided by the difference in mean effectiveness. Effectiveness critrion will be the proportion of patients without serious complication (institution of in-hospital ventilatory support, occurence of cardiac arrest, or death from any cause). |
28 days
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Yhteistyökumppanit ja tutkijat
Sponsori
Sponsori
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Todellinen)
Opiskelun aloitus
Ensisijainen valmistuminen (Arvioitu)
Ensisijainen valmistuminen
Opintojen valmistuminen (Arvioitu)
Opintojen valmistuminen
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Ensimmäinen Lähetetty
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin päivitys julkaistu
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Avainsanat
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
Muut tutkimustunnusnumerot
- TELEDYS
- 2026-A00879-42 (Muu tunniste: French Ethics Committee Number (ID-RCB))
Yksittäisten osallistujien tietojen suunnitelma (IPD)
Aiotko jakaa yksittäisten osallistujien tietoja (IPD)?
Lääke- ja laitetiedot, tutkimusasiakirjat
Tutkii yhdysvaltalaista FDA sääntelemää lääkevalmistetta
Tutkii yhdysvaltalaista FDA sääntelemää laitetuotetta
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