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Case-Based Learning for Bedside Lung Ultrasound Teaching in ICU

14. Mai 2026 aktualisiert von: Qiancheng Xu, First Affiliated Hospital of Wannan Medical College

CBL Mode in Clinical Teaching of Bedside Lung Ultrasound in Intensive Care Unit: A Randomized Controlled Study

This single-center randomized controlled study aims to evaluate the effectiveness of Case-Based Learning (CBL) compared with traditional teaching in clinical training of bedside lung ultrasound (BLUE) for emergency medicine residents and medical students. The hypothesis is that CBL improves theoretical understanding, practical ultrasound skills, and clinical reasoning in emergency settings.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

This single-center randomized controlled educational trial will be conducted in the Intensive Care Unit (ICU) of the First Affiliated Hospital of Wannan Medical College, China. The study aims to compare the effectiveness of Case-Based Learning (CBL) and traditional lecture-based teaching in bedside lung ultrasound (BLUE) education for residents and medical students participating in critical care rotations.

Participants will be randomized in a 1:1 ratio by computer-generated sequence into either the CBL group or the traditional teaching group. Both groups will receive a total of 8 hours of instruction delivered in two 4-hour sessions during their ICU rotation period.

In the CBL group, teaching will be guided by authentic clinical cases that include varied respiratory pathologies (e.g., pneumonia, pneumothorax, pulmonary edema). Each case will involve small-group discussion of diagnostic reasoning, interpretation of ultrasound findings, and supervised scanning practice at the bedside. Instructors will facilitate feedback and reflective learning, integrating theoretical concepts with clinical application.

In the traditional teaching group, participants will attend classroom lectures on ultrasound principles and watch instructor-led demonstrations of standardized BLUE examination techniques. Short hands-on practice sessions will follow under supervision but without case-based discussion or peer-feedback components.

All teaching sessions will be delivered by faculty certified in critical ultrasonography, using standardized instruction materials and the same ultrasound equipment and scanning protocols across groups. Data collection will occur within one week after completion of the teaching intervention. Primary outcomes include Objective Structured Clinical Examination (OSCE) score reflecting image acquisition, interpretation, and clinical reasoning. Secondary outcomes comprise written knowledge test scores and learner-reported measures of learning motivation and satisfaction.

All analyses will follow the intention-to-treat principle. Group differences will be tested using appropriate statistical methods (e.g., independent t-test or Mann-Whitney U test for continuous variables and chi-square test for categorical variables). The results will provide empirical evidence to guide optimization of bedside lung ultrasound education and the implementation of interactive, case-based teaching strategies in the context of intensive and emergency care training programs.

Studientyp

Interventionell

Einschreibung (Geschätzt)

106

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

    • Anhui
      • Wuhu, Anhui, China, 241001
        • The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College)
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Kind
  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Ja

Beschreibung

Inclusion Criteria:

  • Standardized residency trainees currently rotating in the Intensive Care Unit (ICU), specializing in Internal Medicine, Surgery, Emergency Medicine, Anesthesiology, or General Practice.
  • Have completed institutional basic ultrasound theory training or possess preliminary ultrasound knowledge.
  • Voluntarily participate and provide written informed consent.
  • Able to complete the entire teaching and evaluation schedule (including written test and OSCE).

Exclusion Criteria:

  • Prior formal training or certification in lung/critical care ultrasound.
  • Unable to complete the study period due to rotation scheduling or absence.
  • Decline or withdraw informed consent.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Versorgungsforschung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Single

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Case-Based Learning (CBL) Group
Participants study authentic emergency cases, analyze lung ultrasound images, perform bedside scanning under instructor facilitation, and discuss diagnostic reasoning in small groups.
Participants study authentic emergency cases, analyze lung ultrasound images, perform bedside scanning under instructor facilitation, and discuss diagnostic reasoning in small groups.
Aktiver Komparator: Traditional Teaching Group
Participants receive conventional didactic lectures and instructor demonstration of BLUE examination followed by limited practice.
Participants receive conventional didactic lectures and instructor demonstration of BLUE examination followed by limited practice.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Objective Structured Clinical Examination (OSCE) Total Score
Zeitfenster: Within one week after completion of the teaching sessions

he Objective Structured Clinical Examination (OSCE) total score (0-100 points) evaluates overall bedside lung ultrasound proficiency. It includes five weighted stations: (1) image acquisition and scanning technique (20 points), (2) image interpretation (20 points), (3) clinical decision-making (20 points), (4) structured case reporting and teamwork (20 points), and (5) emergency communication with patients or families (20 points). Each station is rated by three blinded assessors using standardized checklists and global rating scales. Higher scores indicate better ultrasound performance and clinical reasoning ability.

Scale Range: 0 (poor performance) to 100 (excellent performance); higher = better

Within one week after completion of the teaching sessions

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Written Theoretical Knowledge Test Score
Zeitfenster: Within one week after the intervention

Description: Written examination assessing understanding of lung ultrasound principles, BLUE protocol workflow, and case analysis. The test includes multiple-choice, multiple-response, short-answer, and case-analysis items. Total score ranges from 0 to 100 points. Higher scores indicate greater theoretical knowledge mastery.

Scale Range: 0 (lowest) to 100 (highest); higher = better

Within one week after the intervention
Clinical Decision Substation Score
Zeitfenster: Within one week after intervention

Description: Subscore from the Objective Structured Clinical Examination (OSCE) Station 3, evaluating diagnostic reasoning and initial management decisions based on bedside lung ultrasound findings. Scored on a 0-20 point checklist by blinded assessors. Higher values reflect stronger clinical decision-making ability.

Scale Range: 0 (lowest) to 20 (highest); higher = better

Within one week after intervention
Self-Assessment Questionnaire Scores
Zeitfenster: Within one week after the intervention

Description: Study-specific questionnaire evaluating self-perceived improvement in learning motivation, clinical reasoning, teamwork, and communication. Each dimension consists of 5 dichotomous items (Yes = 1; No = 0). Scores are summarized as the proportion (%) of participants responding "Yes" in each domain. The possible range is 0%-100%; higher proportions indicate more participants reporting improvement.

Scale Range: 0%-100%; higher = better perceived improvement

Within one week after the intervention
Overall Learning Satisfaction Rating
Zeitfenster: Within one week after the intervention

Description: Overall satisfaction measured by a single 5-point Likert-type item (1 = Very dissatisfied, 2 = Dissatisfied, 3 = Neutral, 4 = Satisfied, 5 = Very satisfied). Reported as the proportion (%) of participants rating ≥4. Higher proportions reflect greater satisfaction with the assigned teaching method.

Scale Range: 1-5 for individual ratings; 0%-100% for proportion ≥4; higher = better satisfaction

Within one week after the intervention

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

1. Juli 2026

Primärer Abschluss (Geschätzt)

30. Juni 2027

Studienabschluss (Geschätzt)

30. Juni 2027

Studienanmeldedaten

Zuerst eingereicht

10. Mai 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

14. Mai 2026

Zuerst gepostet (Tatsächlich)

18. Mai 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

18. Mai 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

14. Mai 2026

Zuletzt verifiziert

1. Mai 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 2026-0511

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Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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