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Función cardíaca en edema pulmonar inducido por natación (SIPE)

30 de septiembre de 2026 actualizado por: Maria Hårdstedt, Dalarna County Council, Sweden

Función cardíaca en el edema pulmonar inducido por la natación (SIPE): un estudio de casos y controles

Acute or chronic cardiac dysfunction could be a contributing factor to swimming-induced pulmonary edema (SIPE). Knowledge on cardiac function in SIPE is limited and recommendations for cardiac evaluation of patients with SIPE are lacking. The present study was designed to assess cardiac function in patients with SIPE and in asymptomatic swimmers.

Descripción general del estudio

Descripción detallada

Swimming induced pulmonary edema (SIPE) is an unusual condition occuring during swimming in cold open water. SIPE is characterized by acute onset of dyspnea and cough, excessive sputum and occasionally hemoptysis. Reversible myocardial dysfunction has been described in swimmers with SIPE and divers with immersion pulmonary edema (IPE). Cardiac dysfunction has also been discussed as a contributing factor triggering SIPE. However, prevalence, severity and prognosis of myocardial dysfunction in patients with SIPE is unknown. Official recommendations for cardiac evaluation of patients after an acute episode of SIPE is lacking.

This case-control-study intends to assess cardiac function in patients with SIPE and in asymptomatic swimmers. 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 of about 0,4%. Cardiac function is evaluated after swimming as well as at rest by echocardiography, 12-lead electrocardiogram and cardiac biomarkers (Troponin I, NT-pro-BNP).

Tipo de estudio

De observación

Inscripción (Estimado)

120

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

      • Falun, Suecia, 79182
        • Reclutamiento
        • Center of Clinical Research Dalarna
        • Contacto:

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

Sí

Géneros elegibles para el estudio

Todos

Método de muestreo

Muestra de probabilidad

Población de estudio

All adults (age ≥18 years) that participate in a swimming race during Vansbrosimningen open water swimming event.

Descripción

Inclusion Criteria:

for patients:

  • respiratory symptoms during or after swimming at the Vansbrosimningen open water swimming event
  • diagnosis SIPE by signs of pulmonary edema on lung ultrasound
  • peripheral oxygen saturation ≤95%

for controls:

  • completion of a swimming race of the Vansbrosimningen open water swimming event.
  • no respiratory symptoms during or after swimming
  • no signs of pulmonary edema on lung ultrasound
  • matched to patients with SIPE regarding sex and age

Exclusion criteria:

  • declined consent
  • hemodynamic instability or decreased consciousness

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Modelos observacionales: CASE_CONTROL
  • Perspectivas temporales: PROSPECTIVE

Cohortes e Intervenciones

Grupo / Cohorte
Intervención / Tratamiento
patients with SIPE

Adult patients (age ≥18 years) with SIPE-diagnosis during "Vansbrosimningen" and peripheral oxygen saturation ≤95%. SIPE-diagnosis based on pulmonary edema on lung ultrasound.

Echocardiography after swimming (acute) and at rest (baseline)

Electrocardiogram (ECG) after swimming (acute) and at rest (baseline)

high sensitive (hs)-Troponin I and N-terminal pro-brain natriuretic peptide (NT-pro-BNP) after swimming (acute) and at rest (baseline)

control group

Swimmers completing "Vansbrosimningen" without respiratory symptoms or signs of pulmonary edema on lung ultrasound. Matched to patients with SIPE for age and gender.

Echocardiography after swimming (acute) and at rest (baseline)

Electrocardiogram (ECG) after swimming (acute) and at rest (baseline)

high sensitive (hs)-Troponin I and N-terminal pro-brain natriuretic peptide (NT-pro-BNP) after swimming (acute) and at rest (baseline)

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Acute Echocardiography
Periodo de tiempo: within 4 hours after termination of swimming

Transthoracic echocardiography with parasternal, apical and subcostal views. Including measurement of ventricular wall size, left ventricular strain, ejection fraction according to the modified Simpson method, diastolic function (using tissue doppler, mitral flow and pulmonary vein flow), right ventricular tricuspid annular plane systolic excursion (TAPSE), pressure gradient over the tricuspid valve, assessment of valve dysfunction, size and respiratory variation of the inferior vena cava, assessment of pericardial fluid.

within 4 hours after termination of swimming
Acute Electrocardiogram (ECG) - Rytm analysis
Periodo de tiempo: within 4 hours after termination of swimming

12-lead electrocardiogram (ECG). Rytm analysis and frequency (beats per minute)

within 4 hours after termination of swimming
Acute Electrocardiogram (ECG) - Heart axis
Periodo de tiempo: within 4 hours after termination of swimming

12-lead electrocardiogram (ECG). Assessment of QRS-axis (degrees)

within 4 hours after termination of swimming
Acute Electrocardiogram (ECG) - Amplitudes and intervals
Periodo de tiempo: within 4 hours after termination of swimming

12-lead electrocardiogram (ECG). Duration of PQ-interval (ms), QRS-complex (ms), QT-interval (ms), QRS amplitude (mV)

within 4 hours after termination of swimming
Acute Electrocardiogram (ECG) - Signs of myocardial ischemia
Periodo de tiempo: within 4 hours after termination of swimming

12-lead electrocardiogram (ECG). ST-elevation, ST-depression, T-wave inversion, Q wave.

within 4 hours after termination of swimming
Acute cardiac biomarkers - Troponin I
Periodo de tiempo: 4-6 hours after termination of swimming

Venous samples. Measurement of hs-Troponin I (ng/L).

4-6 hours after termination of swimming
Acute cardiac biomarkers - NT-pro-BNP
Periodo de tiempo: 4-6 hours after termination of swimming

Venous samples. Measurement of NT-pro-BNP (ng/L)

4-6 hours after termination of swimming

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Baseline Echocardiography
Periodo de tiempo: within 12 months after swimming

Transthoracic echocardiography with parasternal, apical and subcostal views. Examination at rest. Including measurement of ventricular wall size, left ventricular strain, ejection fraction according to the modified Simpson method, diastolic function (using tissue doppler, mitral flow and pulmonary vein flow), right ventricular tricuspid annular plane systolic excursion (TAPSE), pressure gradient over the tricuspid valve, assessment of valve dysfunction, size and respiratory variation of the inferior vena cava, assessment of pericardial fluid.

within 12 months after swimming
Baseline Electrocardiogram (ECG) - Rytm analysis
Periodo de tiempo: within 12 months after swimming

12-lead Electrocardiogram (ECG). Examination at rest. Rytm analysis and frequency (beats per minute)

within 12 months after swimming
Baseline Electrocardiogram (ECG)- Heart axis
Periodo de tiempo: within 12 months after swimming

12-lead Electrocardiogram (ECG). Examination at rest. Assessment of QRS-axis (degrees)

within 12 months after swimming
Baseline Electrocardiogram (ECG) - Amplitudes and intervals
Periodo de tiempo: within 12 months after swimming

12-lead Electrocardiogram (ECG). Examination at rest. Duration of PQ-interval (ms), QRS-complex (ms), QT-interval (ms), QRS amplitude (mV)

within 12 months after swimming
Baseline Electrocardiogram (ECG) - Signs of myocardial ischemia
Periodo de tiempo: within 12 months after swimming

12-lead Electrocardiogram (ECG). Examination at rest. ST-elevation, ST-depression, T-wave inversion, Q wave.

within 12 months after swimming
Baseline cardiac biomarkers - Troponin I
Periodo de tiempo: within 12 months after swimming

Venous samples. Measurement of hs-Troponin I (ng/L). Examination at rest

within 12 months after swimming
Baseline cardiac biomarkers - NT-pro-BNP
Periodo de tiempo: within 12 months after swimming

Venous samples. Measurement of NT-pro-BNP (ng/L). Examination at rest

within 12 months after swimming

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Publicaciones y enlaces útiles

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Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

6 de julio de 2022

Finalización primaria (Estimado)

1 de diciembre de 2027

Finalización del estudio (Estimado)

1 de diciembre de 2027

Fechas de registro del estudio

Enviado por primera vez

17 de mayo de 2022

Primero enviado que cumplió con los criterios de control de calidad

20 de mayo de 2022

Publicado por primera vez (Actual)

26 de mayo de 2022

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

5 de octubre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

30 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

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