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PEP-anordning til behandling af svømning-induceret lungeødem (SIPE)

30. september 2026 opdateret af: Maria Hårdstedt, Dalarna County Council, Sweden

Evaluering af positiv ekspiratorisk trykanordning (PEP-anordning) til behandling af svømningsinduceret lungeødem (SIPE) - en randomiseret enkeltblindet kontrolleret undersøgelse

In swimming induced pulmonary edema (SIPE), there is a lack of knowledge regarding optimal treatment. The present study was designed to assess the benefit of treatment with positive expiratory pressure device (PEP-device) compared to spontaneous recovery in patients with SIPE without hypoxia in the out-of-hospital environment.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Swimming induced pulmonary edema (SIPE) is an unusual condition affecting otherwise healthy swimmers. SIPE is characterized by acute onset of dyspnea and cough, excessive sputum and occasionally hemoptysis when swimming in open water. The condition usually resolves spontaneously within 48 hours, but may result in serious illness and require emergency care. Case reports describe acute treatment with or without oxygen in combination with diuretics, beta-agonist-inhalation or continuous positive airway pressure (CPAP). Evidence for optimal treatment strategy is lacking. Oxygen treatment might not be appropriate for patients with SIPE presenting without hypoxia. It is unknown if positive airway pressure accelerates recovery in SIPE.

This study intends to determine whether treatment with positive expiratory pressure (PEP) applied by PEP-device accelerates increase of oxygen saturation compared to spontaneous recovery in patients presenting with SIPE without hypoxia. The aim is to treat patients on site without involving hospital care. We study a large cohort of approximately 12 000 swimmers during Vansbrosimningen, Sweden's biggest annual open water event with a yearly incidence of SIPE about 0,4%.

Adult patients clinically diagnosed with SIPE and oxygen saturation ≥92% are randomly assigned to 2 groups: (1) PEP-device for 20 minutes or (2) control group with spontaneous recovery without active treatment for 20 minutes. Assessment with outcome measures is taken 10 minutes after intervention/control. Primary endpoint: oxygen saturation (%) by pulse oxymetry.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

40

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

      • Falun, Sverige, 79182
        • Rekruttering
        • Center of Clinical Research Dalarna
        • Kontakt:
          • Maria Hårdstedt, MD/PhD

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • clinical diagnosis of swimming induced pulmonary edema (SIPE) with need of acute treatment
  • peripheral oxygen saturation ≥92%
  • 18 years or older
  • informed consent

Exclusion Criteria:

  • declined consent
  • suspected acute coronary syndrome
  • severe asthma diagnosed together with pulmonary edema with requirement of beta-agonist-inhalation prior to treatment of pulmonary edema
  • hemodynamic instability or decreased consciousness

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: PEP-device

Positive expiratory pressure device: continuous treatment with PEP-device breathing air for 20 minutes followed by 10 minutes rest and assessment. Inspiration through nose/mouth, expiration through device.

PEP-device

Ingen indgriben: spontaneous recovery

Control group: Resting and breathing air for 20 + 10 minutes.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Absolute peripheral oxygen saturation (%) after treatment
Tidsramme: after 20 min treatment followed by 10 min rest

Peripheral oxygen saturation % (continuous variable) measured by peripheral pulse oximetry

after 20 min treatment followed by 10 min rest

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in absolute peripheral oxygen saturation (%) before and after treatment
Tidsramme: change before versus after 20 min treatment followed by 10 min rest

Change in peripheral oxygen saturation % (continuous variable) measured by pulse oximetry before and after treatment

change before versus after 20 min treatment followed by 10 min rest
Recovery (yes/no) after treatment
Tidsramme: after 20 min treatment followed by 10 min rest

Recovery, defined by "peripheral oxygen saturation >95% after treatment" or no recovery, defined by "peripheral oxygen saturation ≤95% after treatment"

after 20 min treatment followed by 10 min rest
Interstitial syndrome assessed by lung ultrasound (yes/no) after treatment
Tidsramme: after 20 min treatment followed by 10 min rest

Four chest regions for both lungs are scanned by lung ultrasound; a positive region defined by the presence of three or more B-line artifacts. Bilateral or unilateral presence of two or more positive regions define positive interstitial syndrome

after 20 min treatment followed by 10 min rest
Absolute number of regions presenting B-lines on lung ultrasound after treatment
Tidsramme: after 20 min treatment followed by 10 min rest

Four chest regions for both lungs are scanned by lung ultrasound; a positive region defined by the presence of three or more B-line artifacts. Assessment of the total number of positive regions.

after 20 min treatment followed by 10 min rest
Change in absolute number of regions presenting B-lines on lung ultrasound before and after treatment
Tidsramme: change before versus after 20 min treatment followed by 10 min rest

Four chest regions for both lungs are scanned by lung ultrasound; a positive region defined by the presence of three or more B-line artifacts. Assessment of the total number of positive regions. Change in absolute number of regions presenting B-lines on lung ultrasound before and after treatment

change before versus after 20 min treatment followed by 10 min rest
Change in patient reported outcome measures before and after treatment
Tidsramme: change before versus after 20 min treatment followed by 10 min rest

Six different patient reported outcome measures assessed by numerical rating scale (NRS; min-max 0-10): cough, sputum, air hunger, breathing effort, tightness in chest, anxiousness. The patients will assess symptoms prior to and after treatment

change before versus after 20 min treatment followed by 10 min rest
Admission to hospital (yes/no)
Tidsramme: 1 hour

Admission to hospital within or after a maximal treatment time of 1 hour

1 hour
Total treatment time
Tidsramme: 1 hour

Total treatment time until oxygen saturation ≥96% is reached

1 hour

Samarbejdspartnere og efterforskere

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Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

2. juli 2022

Primær færdiggørelse (Anslået)

15. juli 2027

Studieafslutning (Anslået)

15. juli 2027

Datoer for studieregistrering

Først indsendt

26. januar 2022

Først indsendt, der opfyldte QC-kriterier

26. januar 2022

Først opslået (Faktiske)

7. februar 2022

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

5. oktober 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

30. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • SIPE PEP-device001

Plan for individuelle deltagerdata (IPD)

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