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Gastric Ultrasound for Airway Management in Emergency Patients

8 de junio de 2026 actualizado por: Raden Besthadi Sukmono, Indonesia University

Airway Management Selection Based on Gastric Content and Residual Volume Assessment in Emergency Patients at RSCM: An Ultrasonography Study

This prospective observational cohort study evaluates the association between gastric residual content and volume, assessed by point-of-care gastric ultrasound (PoCUS), and the choice of airway management technique (Rapid Sequence Intubation vs. non Rapid Sequence Intubation) in adult emergency surgical patients at Rumah Sakit Cipto Mangunkusumo (RSCM). Aspiration risk in emergency patients is a critical concern, and this study examines whether objective ultrasonographic findings change clinical decision-making compared to traditional clinical assessment alone.

Descripción general del estudio

Estado

Terminado

Condiciones

Intervención / Tratamiento

Descripción detallada

Emergency patients frequently have delayed gastric emptying, increasing aspiration risk during airway management. Gastric PoCUS allows non-invasive, bedside assessment of gastric content (empty, liquid, solid, or mixed) and volume. This study quantifies gastric antrum cross-sectional area (CSA) using the Perlas formula (GV = 27.0 + 14.6 × CSA - 1.28 × age) and reports whether USG findings influenced the anesthesiologist's plan (RSI or non-RSI).

Tipo de estudio

De observación

Inscripción (Actual)

43

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

  • Indonesia
    • Jakarta Special Capital Region
      • Jakarta, Jakarta Special Capital Region, Indonesia, 01430
        • RSUPN Cipto Mangunkusumo

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

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Método de muestreo

Muestra no probabilística

Población de estudio

Adult emergency surgical patients (age >18 years) requiring airway management under general anesthesia at the Emergency Operating Room of RSUPN Dr. Cipto Mangunkusumo (RSCM), Jakarta, Indonesia. The population includes both trauma (62.8%) and non-trauma (37.2%) emergency cases. Patients were enrolled consecutively from July to August 2025. Patients with conditions that could confound gastric ultrasound assessment or airway management decisions were excluded.

Descripción

Inclusion Criteria:

  • Emergency patients requiring airway management in the Emergency Operating Room
  • Age >18 years

Exclusion Criteria:

  • Pregnancy
  • Morbid obesity (BMI >40 kg/m²)
  • History of prior gastric or esophageal surgery
  • Duodenal tube in situ
  • Maxillofacial trauma or anticipated difficult airway
  • Inability to adequately visualize the gastric antrum on ultrasound

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

Cohortes e Intervenciones

Grupo / Cohorte
Intervención / Tratamiento
Emergency Surgical Patients
Adult emergency surgical patients (age >18 years) requiring airway management at the Emergency Operating Room of RSUPN Dr. Cipto Mangunkusumo (RSCM), who underwent preoperative gastric point-of-care ultrasound (PoCUS) to assess gastric content type and residual volume prior to anesthetic induction.
Dispositivo: Preoperative Gastric Point-of-Care Ultrasound (PoCUS)
Gastric antrum ultrasound performed using a low-frequency transducer (2-5 MHz; SonoSite M-Turbo or Lumify Philips) in the supine position before anesthetic induction. The antrum cross-sectional area (CSA) was measured during the relaxation phase between two peristaltic contractions, calculating cranio-caudal (CC) and antero-posterior (AP) diameters. Gastric residual volume (GRV) was calculated using the Perlas formula: GV = 27.0 + 14.6 × CSA - 1.28 × age (years). Gastric content was classified as empty, liquid, solid, or mixed. Aspiration risk was categorized as high (GRV ≥1.5 ml/kg or solid content) or low (GRV <1.5 ml/kg or empty).
Otros nombres:
  • Ultrasonido Gástrico
  • Gastric USG
  • Bedside Gastric Sonography

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Association between aspiration risk based on gastric ultrasound findings and airway management technique selection
Periodo de tiempo: At time of pre-induction assessment (single time point, intraoperative)
Proportion of patients in whom airway management technique (Rapid Sequence Intubation vs. non Rapid Sequence Intubation) was associated with aspiration risk category (high vs. low) determined by preoperative gastric Point-of-Care Ultrasound (PoCUS) findings. Aspiration risk classified as high if Gastric Residual Volume (GRV) ≥1.5 ml/kg or solid gastric content; low if GRV <1.5 ml/kg or empty stomach. Analyzed using chi-square test.
At time of pre-induction assessment (single time point, intraoperative)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Change in Airway Management Plan After Gastric USG
Periodo de tiempo: Before and immediately after gastric USG, prior to anesthetic induction
Comparison of airway management plan (RSI vs. non-RSI) before and after disclosure of gastric USG findings to the treating anesthesiologist. Analyzed using McNemar's paired categorical test.
Before and immediately after gastric USG, prior to anesthetic induction
Gastric Residual Volume
Periodo de tiempo: At pre-induction assessment
Gastric residual volume calculated using the Perlas formula: GV = 27.0 + 14.6 × CSA - 1.28 × age (years), based on antrum cross-sectional area (CSA) measured from cranio-caudal (CC) and antero-posterior (AP) diameters. Reported as mean ± SD or median (range).
At pre-induction assessment
Gastric Content Type
Periodo de tiempo: At pre-induction assessment
Proportion of patients with each gastric content category: empty, liquid only, solid, or mixed (solid and liquid), as identified by gastric PoCUS.
At pre-induction assessment
Fasting Duration and Its Relationship to Gastric Residual Volume
Periodo de tiempo: At pre-induction assessment
Fasting duration categorized as <8 hours, 8-12 hours, or >12 hours since last solid food intake, and its relationship to gastric residual volume and aspiration risk classification on USG.
At pre-induction assessment
American Society of Anesthesiologists (ASA) Physical Status Classification as a factor in airway management decision
Periodo de tiempo: At pre-induction assessment
Proportion of patients in each American Society of Anesthesiologists (ASA) class (I, II, III, IV) and its association with airway management technique selection (RSI vs. non-RSI) after gastric USG, analyzed using chi-square test.
At pre-induction assessment
Trauma Severity Score (ISS) as a factor in airway management decision
Periodo de tiempo: At pre-induction assessment
Injury Severity Score (ISS) categorized as severe (ISS ≥15) or mild-moderate (ISS <15) and its association with airway management technique selection (RSI vs. non-RSI) after gastric USG, analyzed using chi-square test.
At pre-induction assessment
Glasgow Coma Scale (GCS) score as a factor in airway management decision
Periodo de tiempo: At pre-induction assessment
GCS score recorded at pre-induction assessment and its association with airway management technique selection (RSI vs. non-RSI) after gastric USG.
At pre-induction assessment
Presence of clinical risk factors (sepsis, shock, GERD/gastritis) as a factor in airway management decision
Periodo de tiempo: At pre-induction assessment
Proportion of patients with each clinical risk factor (sepsis, hemorrhagic shock, GERD/gastritis) and its association with airway management technique selection (RSI vs. non-RSI) after gastric USG, analyzed using chi-square or Fisher's exact test.
At pre-induction assessment

Colaboradores e Investigadores

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

Patrocinador

Indonesia University

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)

5 de junio de 2025

Finalización primaria (Actual)

13 de agosto de 2025

Finalización del estudio (Actual)

13 de septiembre de 2025

Fechas de registro del estudio

Enviado por primera vez

2 de junio de 2026

Primero enviado que cumplió con los criterios de control de calidad

8 de junio de 2026

Publicado por primera vez (Actual)

10 de junio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

10 de junio de 2026

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

8 de junio de 2026

Última verificación

1 de junio de 2026

Más información

Términos relacionados con este estudio

Palabras clave

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • GastricUSG

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

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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