Gastric Ultrasound for Airway Management in Emergency Patients
2026年6月8日 更新者: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.
調査の概要
詳細な説明
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).
研究の種類
観察的
入学 (実際)
43
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究場所
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Jakarta Special Capital Region
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Jakarta、Jakarta Special Capital Region、インドネシア、01430
- RSUPN Cipto Mangunkusumo
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参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
いいえ
サンプリング方法
非確率サンプル
調査対象母集団
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.
説明
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
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
研究はどのように設計されていますか?
デザインの詳細
コホートと介入
グループ/コホート |
介入・治療 |
|---|---|
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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.
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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).
他の名前:
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Association between aspiration risk based on gastric ultrasound findings and airway management technique selection
時間枠:At time of pre-induction assessment (single time point, intraoperative)
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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.
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At time of pre-induction assessment (single time point, intraoperative)
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change in Airway Management Plan After Gastric USG
時間枠:Before and immediately after gastric USG, prior to anesthetic induction
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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.
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Before and immediately after gastric USG, prior to anesthetic induction
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Gastric Residual Volume
時間枠:At pre-induction assessment
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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).
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At pre-induction assessment
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Gastric Content Type
時間枠:At pre-induction assessment
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Proportion of patients with each gastric content category: empty, liquid only, solid, or mixed (solid and liquid), as identified by gastric PoCUS.
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At pre-induction assessment
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Fasting Duration and Its Relationship to Gastric Residual Volume
時間枠:At pre-induction assessment
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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.
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At pre-induction assessment
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American Society of Anesthesiologists (ASA) Physical Status Classification as a factor in airway management decision
時間枠:At pre-induction assessment
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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.
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At pre-induction assessment
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Trauma Severity Score (ISS) as a factor in airway management decision
時間枠:At pre-induction assessment
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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.
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At pre-induction assessment
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Glasgow Coma Scale (GCS) score as a factor in airway management decision
時間枠:At pre-induction assessment
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GCS score recorded at pre-induction assessment and its association with airway management technique selection (RSI vs. non-RSI) after gastric USG.
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At pre-induction assessment
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Presence of clinical risk factors (sepsis, shock, GERD/gastritis) as a factor in airway management decision
時間枠:At pre-induction assessment
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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.
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At pre-induction assessment
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協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
スポンサー
研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始 (実際)
2025年6月5日
一次修了 (実際)
2025年8月13日
研究の完了 (実際)
2025年9月13日
試験登録日
最初に提出
2026年6月2日
QC基準を満たした最初の提出物
2026年6月8日
最初の投稿 (実際)
2026年6月10日
学習記録の更新
投稿された最後の更新 (実際)
2026年6月10日
QC基準を満たした最後の更新が送信されました
2026年6月8日
最終確認日
2026年6月1日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- GastricUSG
個々の参加者データ (IPD) の計画
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いいえ
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