Internal Jugular Vein Respiratory Variability as a Marker of Disease Severity in Infant Bronchiolitis (IJV-BRONCH)
Respiratory Variation of Internal Jugular Vein Diameter as a Novel Ultrasonographic Marker of Disease Severity in Infants With Acute Bronchiolitis: A Prospective Observational Cohort Study
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Emre Güngör, Medical Doctor
- Telefonnummer: 5214 +90 222 239 2979
- E-Mail: emre.gungor@ogu.edu.tr
Studienorte
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Eskişehir
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Eskişehir, Eskişehir, Türkei (türkiye), 26480
- Eskisehir Osmangazi University Faculty of Medicine, Pediatric Emergency Department
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Kontakt:
- Emre Güngör, Medical Doctor
- Telefonnummer: 5214 +90 222 239 2979
- E-Mail: emre.gungor@ogu.edu.tr
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Kind
Akzeptiert gesunde Freiwillige
Probenahmeverfahren
Studienpopulation
Beschreibung
Inclusion Criteria:
- Infants aged 1-23 months
- Clinical diagnosis of acute bronchiolitis per AAP (2014) criteria (first wheezing episode following an upper respiratory infection prodrome, with tachypnea, retractions, and/or crackles)
- Written informed consent obtained from parent/legal guardian
- Evaluable within the first 6 hours of emergency department presentation
Exclusion Criteria:
- Underlying congenital heart disease
- Chronic lung disease (bronchopulmonary dysplasia, cystic fibrosis)
- Prior history of recurrent wheezing/suspected asthma
- Anatomical abnormality of the neck or prior history of central venous catheterization or jugular vein thrombosis
- Hemodynamic instability/shock
- Immediate need for intubation/mechanical ventilation precluding ultrasound assessment
- Parent/legal guardian declines consent
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Anzahl der Gruppen / Kohorten
Kohorten und Interventionen
Gruppe / KohorteGruppe / Kohorte |
Intervention / BehandlungIntervention / Behandlung |
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Acute Bronchiolitis Cohort
Infants aged 1-23 months diagnosed with acute bronchiolitis per AAP (2014) clinical practice guideline criteria, undergoing a standardized point-of-care ultrasound assessment (internal jugular vein, lung, and diaphragm) in addition to standard clinical evaluation and treatment.
No intervention is assigned as part of this study; the cohort will be stratified post hoc by clinical severity scores for descriptive and exploratory subgroup analyses.
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A standardized point-of-care ultrasonography assessment will be performed in addition to routine clinical evaluation.
The protocol includes M-mode assessment of the right internal jugular vein (IJV) to measure maximal and minimal respiratory-cycle diameters and calculate the IJV Variability Index ([IJVmax-IJVmin]/IJVmax × 100).
Concurrent lung ultrasonography and diaphragm ultrasonography, including diaphragm excursion and thickening fraction, will also be performed.
Ultrasonographic assessments are performed for research measurements only and do not determine or modify clinical treatment decisions.
Andere Namen:
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Correlation Between Internal Jugular Vein Respiratory Variability Index and Wang Bronchiolitis Severity Score
Zeitfenster: At enrollment (baseline, within 6 hours of emergency department presentation)
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Correlation between the Internal Jugular Vein (IJV) Variability Index and the Wang Bronchiolitis Severity Score.
The IJV Variability Index will be calculated as ([IJVmax - IJVmin] / IJVmax) × 100, where IJVmax and IJVmin represent the maximum and minimum IJV diameters measured during the respiratory cycle.
The Wang Bronchiolitis Severity Score ranges from 0 to 12, with higher scores indicating greater disease severity.
The association will be quantified using Pearson or Spearman correlation coefficients, as appropriate.
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At enrollment (baseline, within 6 hours of emergency department presentation)
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Correlation Between IJV Variability Index and Oxygen Saturation, Respiratory Rate, and Retraction Severity
Zeitfenster: At enrollment (baseline, within 6 hours of emergency department presentation)
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Correlation between the IJV Variability Index and oxygen saturation (SpO2, %), respiratory rate (breaths/minute), and the retraction component of the Wang Bronchiolitis Severity Score.
The retraction component ranges from 0 to 3, with higher scores indicating more severe retractions.
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At enrollment (baseline, within 6 hours of emergency department presentation)
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Association Between IJV Variability Index and Need for High-Flow Nasal Cannula or Supplemental Oxygen Therapy
Zeitfenster: From enrollment through hospital discharge, assessed up to approximately 7 days
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Comparison of baseline IJV Variability Index between infants who require and do not require high-flow nasal cannula (HFNC) or supplemental oxygen therapy during hospitalization.
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From enrollment through hospital discharge, assessed up to approximately 7 days
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Association Between IJV Variability Index and Pediatric Intensive Care Unit Admission
Zeitfenster: From enrollment through hospital discharge, assessed up to approximately 7 days
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Comparison of baseline IJV Variability Index between infants admitted and not admitted to the pediatric intensive care unit (PICU) during hospitalization.
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From enrollment through hospital discharge, assessed up to approximately 7 days
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Correlation Between Diaphragm Ultrasound Parameters and IJV Variability Index and Clinical Severity Scores
Zeitfenster: At enrollment (baseline, within 6 hours of emergency department presentation)
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Correlation of diaphragm excursion, diaphragm thickening fraction, and inspiratory/expiratory ratio with the IJV Variability Index and clinical severity scores.
Clinical severity measures will include the Wang Bronchiolitis Severity Score (range 0-12), Modified Tal Score (range 0-12), Respiratory Distress Assessment Instrument (range 0-17), and Kristjansson Respiratory Score (range 0-10).
For all four clinical severity scores, higher scores indicate greater disease or respiratory distress severity.
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At enrollment (baseline, within 6 hours of emergency department presentation)
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Correlation Between IJV Variability Index and Modified Tal Score
Zeitfenster: At enrollment (baseline, within 6 hours of emergency department presentation)
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Correlation between the IJV Variability Index and the Modified Tal Score.
The Modified Tal Score ranges from 0 to 12, with higher scores indicating greater bronchiolitis severity.
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At enrollment (baseline, within 6 hours of emergency department presentation)
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Correlation Between IJV Variability Index and Respiratory Distress Assessment Instrument
Zeitfenster: At enrollment (baseline, within 6 hours of emergency department presentation)
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Correlation between the IJV Variability Index and the Respiratory Distress Assessment Instrument (RDAI).
The RDAI assesses wheezing and retractions and ranges from 0 to 17, with higher scores indicating greater respiratory distress.
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At enrollment (baseline, within 6 hours of emergency department presentation)
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Association Between IJV Variability Index and Respiratory Assessment Change Score
Zeitfenster: Baseline and 2-4 hours after enrollment
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Association between the baseline IJV Variability Index and the Respiratory Assessment Change Score (RACS).
RACS quantifies change in respiratory status using the change in the Respiratory Distress Assessment Instrument together with a standardized change in respiratory rate between baseline and follow-up assessment.
RACS is a change measure rather than a bounded scale and therefore does not have a fixed theoretical minimum or maximum.
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Baseline and 2-4 hours after enrollment
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Correlation Between IJV Variability Index and Kristjansson Respiratory Score
Zeitfenster: At enrollment (baseline, within 6 hours of emergency department presentation)
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Correlation between the IJV Variability Index and the Kristjansson Respiratory Score.
The Kristjansson Respiratory Score ranges from 0 to 10, with higher scores indicating greater respiratory disease severity.
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At enrollment (baseline, within 6 hours of emergency department presentation)
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Andere Ergebnismessungen
Andere Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Discriminative Performance of a Multimodal Point-of-Care Ultrasound Model Versus Wang Bronchiolitis Severity Score for Predicting Escalated Respiratory Support
Zeitfenster: From enrollment through 24 hours after enrollment
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Area under the receiver operating characteristic curve (AUC, 95% confidence interval) for a multimodal model combining baseline IJV Variability Index, lung ultrasound score, and diaphragm ultrasound parameters, compared with the Wang Bronchiolitis Severity Score alone using the DeLong test.
The lung ultrasound score ranges from 0 to 36, with higher scores indicating greater pulmonary aeration abnormality.
The Wang Bronchiolitis Severity Score ranges from 0 to 12, with higher scores indicating greater bronchiolitis severity.
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From enrollment through 24 hours after enrollment
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: Emre Güngör, Medical Doctor, Eskisehir Osmangazi University Faculty of Medicine, Department of Pediatrics, Division of Pediatric Emergency Medicine
Publikationen und hilfreiche Links
Allgemeine Veröffentlichungen
- McCallum GB, Morris PS, Wilson CC, Versteegh LA, Ward LM, Chatfield MD, Chang AB. Severity scoring systems: are they internally valid, reliable and predictive of oxygen use in children with acute bronchiolitis? Pediatr Pulmonol. 2013 Aug;48(8):797-803. doi: 10.1002/ppul.22627. Epub 2012 Sep 4.
- Ralston SL, Lieberthal AS, Meissner HC, Alverson BK, Baley JE, Gadomski AM, Johnson DW, Light MJ, Maraqa NF, Mendonca EA, Phelan KJ, Zorc JJ, Stanko-Lopp D, Brown MA, Nathanson I, Rosenblum E, Sayles S 3rd, Hernandez-Cancio S; American Academy of Pediatrics. Clinical practice guideline: the diagnosis, management, and prevention of bronchiolitis. Pediatrics. 2014 Nov;134(5):e1474-502. doi: 10.1542/peds.2014-2742.
- Right Internal Jugular Ultrasound Measurements during the Respiratory Cycle in Children Journal Authors: AM IsacoffDJ McLarioKP CrossAR O'HaganBJ HollandDJ LorenzMD Stevenson DOI: 10.7727/wimj.2016.540 ABSTRACT Background: Point of care ultrasound could be useful as a non-invasive objective measure of throughout the respiratory cycle. Objective: To determine the reliability of measurements of the right internal jugular vein (RIJV). Methods: We performed a prospective observation study of children aged 6-17 years. Using M-mode ultrasonography one centimeter cephalad from the clavicle, triplicate measurements were recorded during inhalation and exhalation with the head straight ahead and 45 degrees leftward. Results: Among the 40 enrolled subjects, mean diameters ± standard deviations of the RIJV (cm) were: maximum inhalation with head straight ahead (0.53 ± 0.18), leftward (0.78 ± 0.22); maximum exhalation with head straight ahead (0.54 ± 0.19), leftward (0.79 ± 0.22). Intraclass correlation coefficients were all significant (p<0.001). Conclusion: The RIJV diameter can be reliably measured during the respiratory cycle; measures are larger with head turned 45 degrees leftward. Received: 28 Oct, 2016 Accepted: 03 Jan, 2017
- Giorno EPC, Foronda FK, De Paulis M, Bou Ghosn DSN, Couto TB, Sa FVM, Fraga AMA, Farhat SCL, Preto-Zamperlini M, Schvartsman C. Point-of-care lung ultrasound score for predicting escalated care in children with respiratory distress. Am J Emerg Med. 2023 Jun;68:112-118. doi: 10.1016/j.ajem.2023.02.035. Epub 2023 Mar 1.
- Bilgili B, Haliloglu M, Tugtepe H, Umuroglu T. The Assessment of Intravascular Volume with Inferior Vena Cava and Internal Jugular Vein Distensibility Indexes in Children Undergoing Urologic Surgery. J Invest Surg. 2018 Dec;31(6):523-528. doi: 10.1080/08941939.2017.1364806. Epub 2017 Sep 27.
- Jayasimha K, Liu W, Hanna W. Use of Internal Jugular Vein POCUS to Assess Intravascular Volume Status: A Study in Critically Ill Pediatric Post-Operative Cardiac Patients. POCUS J. 2025 Nov 17;10(2):109-114. doi: 10.24908/pocusj.v10i02.18249. eCollection 2025 Nov.
- Fernandes RM, Plint AC, Terwee CB, Sampaio C, Klassen TP, Offringa M, van der Lee JH. Validity of bronchiolitis outcome measures. Pediatrics. 2015 Jun;135(6):e1399-408. doi: 10.1542/peds.2014-3557. Epub 2015 May 18.
- Sik N, Citlenbik H, Ozturk A, Yilmaz D, Duman M. Point of care diaphragm ultrasound in acute bronchiolitis: A measurable tool to predict the clinical, sonographic severity of the disease, and outcomes. Pediatr Pulmonol. 2021 May;56(5):1053-1059. doi: 10.1002/ppul.25268. Epub 2021 Jan 26.
- Curinha F, Fernandes A, Pinto C, Dionisio MT. Thoracic Ultrasound in Pediatric Intensive Care: A Valuable Tool for Children with Acute Bronchiolitis. Acta Med Port. 2026 Apr 1;39(4):271-280. doi: 10.20344/amp.24309. Epub 2026 Apr 1.
- Drum B, La Course B, Kelly M, York A, Worrall E, Martins J, Johnson S, Liles EA Jr. Does This Patient Have Volume Overload?: The Rational Clinical Examination. JAMA. 2026 Apr 7;335(13):1159-1168. doi: 10.1001/jama.2026.0446.
- Wang EE, Milner R, Allen U, Maj H. Bronchodilators for treatment of mild bronchiolitis: a factorial randomised trial. Arch Dis Child. 1992 Mar;67(3):289-93. doi: 10.1136/adc.67.3.289.
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Infektionen der Atemwege
- Infektionen
- RNA-Virusinfektionen
- Viruserkrankungen
- Erkrankungen der Atemwege
- Lungenkrankheit
- Bronchialerkrankungen
- Lungenerkrankungen, obstruktive
- Bronchitis
- Pneumovirus-Infektionen
- Paramyxoviridae-Infektionen
- Mononegavirales-Infektionen
- Respiratory-Syncytial-Virus-Infektionen
- Bronchiolitis
- Bronchiolitis, viral
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- IJVBRONCH-2026-01
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