NCT05028023

Brief Summary

The study presents an alternative method of tracheal dilatation in pediatric patients with acquired tracheal stenosis. Dilatation is performed by the use of balloon catheter connected with manometer, that is bronchoscopic guided into trachea in the stenotic area, through the wide canal of supraglottic device i-Gel. Every dilatation cession consists of three consequent tracheal balloon dilatations of maximum 3 minutes duration each, followed by 10-15minutes interval of controlled ventilation. The balloon is inflated for 60 seconds to reach predefined pressure, and then deflated. This method is minimal traumatic for tracheal mucosa, and application of several dilatation procedures every 2-3months, in pediatric patients with acquired tracheal stenosis, may lead to a relative reopening of trachea and recession of clinical symptoms.For the right performance of the dilatation procedure, patients receive general anesthesia with cessation of spontaneous ventilation. During procedure, controlled ventilation-oxygenation is impossible, because the i-Gel canal is occupied by bronchoscope and balloon catheter, so patients will remain apneic for a short period of time. For pediatric patients is important to perform proper preoxygenation prior to procedure, and to maintain oxygenation as long as possible during procedure. This is achieved by application of apneic oxygenation, through a small catheter, connected to high flow oxygen. Participants are exposed during first dilation to no oxygenation, while during second and third dilatation to apneic oxygenation. Aim of the study is to investigate primarily whether application of apneic oxygenation, in pediatric patients during tracheal balloon dilatation, maintains regional cerebral oxygen saturation rSO2 in significant higher levels, compared with no application of oxygenation. rSO2 levels are a sensitive index of oxygenation efficacy of the brain, accordingly this refers to a safe procedure. Secondary issues are whether application of apneic oxygenation maintains pulse oximetry SpO2 and artierial oxygen partial pressure PaO2 in higher levels, and what are the effects on arterial carbon dioxide partial pressure PaCO2 and on haemodynamic parameters (heart rate, blood pressure), compared with no application of apneic oxygenation.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
5

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2020

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 21, 2020

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

August 5, 2021

Completed
26 days until next milestone

First Posted

Study publicly available on registry

August 31, 2021

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2022

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2022

Completed
Last Updated

August 31, 2021

Status Verified

August 1, 2021

Enrollment Period

1.3 years

First QC Date

August 5, 2021

Last Update Submit

August 24, 2021

Conditions

Keywords

Apneic oxygenationTracheal stenosisTracheal dilatation by Balloon Catheteri-GelRegional cerebral oxygen saturation rSO2 by NIRSPeripheral oxygen saturation SpO2Partial pressure of arterial oxygen PaO2Partial pressure of arterial carbon dioxide PaCO2

Outcome Measures

Primary Outcomes (3)

  • Comparison of changes in regional cerebral oxygen saturation rSO2 between first and second tracheal balloon dilatation procedure in children

    Evaluation of changes in regional cerebral oxygen saturation rSO2, measured by Near InfraRed Spectroscopy NIRS, between end and start of 1st tracheal dilatation procedure in children, where no apneic oxygen enrichment is applied, between end and start of 2nd dilatation procedure, where apneic oxygenation is applied, and comparison of changes in rSO2, between 1st and 2nd procedure. A greater change (decrease) in regional cerebral oxygen saturation rSO2, in the case of no apneic enrichment, compared to apneic oxygenation application, is expected.

    Changes in regional cerebral oxygen saturation rSO2 between end and strart of first/second tracheal dilatation procedure

  • Comparison of changes in regional cerebral oxygen saturation rSO2 between first and third tracheal balloon dilatation procedure in children

    Evaluation of changes in regional cerebral oxygen saturation rSO2, measured by Near InfraRed Spectroscopy NIRS, between end and start of 1st tracheal dilatation procedure in children, where no apneic oxygen enrichment is applied, between end and start of 3rd dilatation procedure, where apneic oxygenation is applied, and comparison of changes in rSO2, between 1st and 3rd procedure. A greater change (decrease) in regional cerebral oxygen saturation rSO2, in the case of no apneic enrichment, compared to apneic oxygenation application, is expected.

    Changes in regional cerebral oxygen saturation rSO2 between end and strart of first/third tracheal dilatation procedure

  • Comparison of changes in regional cerebral oxygen saturation rSO2 between second and third tracheal balloon dilatation procedure in children

    Evaluation of changes in regional cerebral oxygen saturation rSO2, measured by Near InfraRed Spectroscopy NIRS, between end and start of 2nd and 3rd tracheal dilatation procedure in children, where in both cases apneic oxygenation is applied, and comparison of changes in rSO2, between 2nd and 3rd procedure. No change in regional cerebral oxygen saturation rSO2, between 2nd and 3rd procedure is expected.

    Changes in regional cerebral oxygen saturation rSO2 between end and strart of second/third tracheal dilatation procedure

Secondary Outcomes (18)

  • Comparison of changes in pulse oximetry - oxygen saturation SpO2 between first and second tracheal dilatation procedure in children

    Changes in pulse oximetry SpO2 between end and start of first/second tracheal dilatation procedure in children

  • Comparison of changes in pulse oximetry - oxygen saturation SpO2 between first and third tracheal dilatation procedure in children

    Changes in pulse oximetry SpO2 between end and start of first/third tracheal dilatation procedure in children

  • Comparison of changes in arterial oxygen partial pressure PaO2 between first and second tracheal dilatation procedure in children

    Changes of arterial oxygen partial pressure PaO2 between end and start of first/second tracheal balloon dilatation procedure in children

  • Comparison of changes in arterial oxygen partial pressure PaO2 between first and third tracheal dilatation procedure in children

    Changes of arterial oxygen partial pressure PaO2 between end and start of first/third tracheal balloon dilatation procedure in children

  • Comparison of changes in arterial carbon dioxide partial pressure PaCO2 between first and second tracheal dilatation procedure in children

    Changes of arterial carbon dioxide partial pressure PaCO2 between end and start of first/second tracheal balloon dilatation procedure in children

  • +13 more secondary outcomes

Study Arms (1)

Pediatric patients with tracheal stenosis undergoing tracheal balloon dilatation

EXPERIMENTAL

Pediatric patients with severe to median acquired tracheal stenosis undergoing tracheal balloon dilatation, and the effects of apneic oxygenation on regional cerebral oxygen saturation rSO2, pulse oximetry SpO2, and arterial oxygen partial pressure PaO2

Biological: Apneic oxygenation - supplemental high flow oxygen administration by an apneic way

Interventions

In pediatric patients undergoing tracheal balloon dilatation, oxygenation maintenance is essential, while induction in anesthesia, cessation of spontaneous ventilation by neuromuscular relaxant and pediatric i-gel placement are necessary for access to trachea. After i-Gel placement controlled ventilation with 100% oxygen is initiated. Pediatric bronchoscope and balloon dilatation catheter are advanced into trachea to the stenotic area. Overall dilatation duration is 2,5-3minutes, while the balloon is inflated for 60sec. Every dilatation cession consists of three dilatations. First dilatation is performed without oxygen enrichment. During second and third dilatation, a nelaton catheter, connected with high oxygen flow, is advanced into i-Gel canal, together with bronchoscope and balloon catheter. Effects of no oxygenation and apneic oxygenation in regional cerebral oxygen saturation rSO2, pulse oximetry SpO2, arterial blood gases and haemodynamics are recorded and compared.

Pediatric patients with tracheal stenosis undergoing tracheal balloon dilatation

Eligibility Criteria

Age2 Years - 14 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Persistent clinical signs of inspiratory stridor, combined with high pitched cry, hoarse voice, persistent cough or recurrent inspiratory tract infections
  • Bronchoscopic conferment of tracheal stenosis from the subglottic area to the area above carina
  • Maintenance of clinical symptoms despite intensive and long drug therapy with inhalational steroids, adrenalin or salbutamol
  • Urgent need for expansion of trachea, because of risk of full obstruction of trachea

You may not qualify if:

  • children with haemodynamic instability prior or during the procedure
  • children with active respiratory tract infection
  • children with low hemoglobin levels - anemia
  • children with physical status, according to the American Society of Anesthesiologists, III and IV
  • parents who refuse the participation of their children in the study and to sign the informed consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hippokratio General Hospital

Thessaloniki, Thessaloniki, 54642, Greece

RECRUITING

Related Publications (22)

  • Overmann KM, Boyd SD, Zhang Y, Kerrey BT. Apneic oxygenation to prevent oxyhemoglobin desaturation during rapid sequence intubation in a pediatric emergency department. Am J Emerg Med. 2019 Aug;37(8):1416-1421. doi: 10.1016/j.ajem.2018.10.030. Epub 2018 Oct 18.

    PMID: 30401594BACKGROUND
  • Soneru CN, Hurt HF, Petersen TR, Davis DD, Braude DA, Falcon RJ. Apneic nasal oxygenation and safe apnea time during pediatric intubations by learners. Paediatr Anaesth. 2019 Jun;29(6):628-634. doi: 10.1111/pan.13645. Epub 2019 Apr 29.

    PMID: 30943324BACKGROUND
  • Brown SB, Hedlund GL, Glasier CM, Williams KD, Greenwood LH, Gilliland JD. Tracheobronchial stenosis in infants: successful balloon dilation therapy. Radiology. 1987 Aug;164(2):475-8. doi: 10.1148/radiology.164.2.3602388.

  • Cohen MD, Weber TR, Rao CC. Balloon dilatation of tracheal and bronchial stenosis. AJR Am J Roentgenol. 1984 Mar;142(3):477-8. doi: 10.2214/ajr.142.3.477. No abstract available.

  • Maresh A, Preciado DA, O'Connell AP, Zalzal GH. A comparative analysis of open surgery vs endoscopic balloon dilation for pediatric subglottic stenosis. JAMA Otolaryngol Head Neck Surg. 2014 Oct;140(10):901-5. doi: 10.1001/jamaoto.2014.1742.

  • Whigham AS, Howell R, Choi S, Pena M, Zalzal G, Preciado D. Outcomes of balloon dilation in pediatric subglottic stenosis. Ann Otol Rhinol Laryngol. 2012 Jul;121(7):442-8. doi: 10.1177/000348941212100704.

  • Hautefort C, Teissier N, Viala P, Van Den Abbeele T. Balloon dilation laryngoplasty for subglottic stenosis in children: eight years' experience. Arch Otolaryngol Head Neck Surg. 2012 Mar;138(3):235-40. doi: 10.1001/archoto.2011.1439. Epub 2012 Feb 20.

  • Lang M, Brietzke SE. A systematic review and meta-analysis of endoscopic balloon dilation of pediatric subglottic stenosis. Otolaryngol Head Neck Surg. 2014 Feb;150(2):174-9. doi: 10.1177/0194599813510867. Epub 2013 Nov 5.

  • HOLMDAHL MH. Pulmonary uptake of oxygen, acid-base metabolism, and circulation during prolonged apnoea. Acta Chir Scand Suppl. 1956;212:1-128. No abstract available.

  • Mosier JM, Hypes CD, Sakles JC. Understanding preoxygenation and apneic oxygenation during intubation in the critically ill. Intensive Care Med. 2017 Feb;43(2):226-228. doi: 10.1007/s00134-016-4426-0. Epub 2016 Jun 24. No abstract available.

  • Ricard JD. Hazards of intubation in the ICU: role of nasal high flow oxygen therapy for preoxygenation and apneic oxygenation to prevent desaturation. Minerva Anestesiol. 2016 Oct;82(10):1098-1106. Epub 2016 May 6.

  • Weingart SD, Levitan RM. Preoxygenation and prevention of desaturation during emergency airway management. Ann Emerg Med. 2012 Mar;59(3):165-75.e1. doi: 10.1016/j.annemergmed.2011.10.002. Epub 2011 Nov 3.

  • Kernisan G, Adler E, Gibbons P, Runions B (1987). Apneic oxygenation in pediatric patients. Anesthesiology; 67(3A).

    RESULT
  • Vukovic AA, Hanson HR, Murphy SL, Mercurio D, Sheedy CA, Arnold DH. Apneic oxygenation reduces hypoxemia during endotracheal intubation in the pediatric emergency department. Am J Emerg Med. 2019 Jan;37(1):27-32. doi: 10.1016/j.ajem.2018.04.039. Epub 2018 Apr 18.

  • Kolettas A, Grosomanidis V, Kolettas V, Zarogoulidis P, Tsakiridis K, Katsikogiannis N, Tsiouda T, Kiougioumtzi I, Machairiotis N, Drylis G, Kesisis G, Beleveslis T, Zarogoulidis K. Influence of apnoeic oxygenation in respiratory and circulatory system under general anaesthesia. J Thorac Dis. 2014 Mar;6 Suppl 1(Suppl 1):S116-45. doi: 10.3978/j.issn.2072-1439.2014.01.17.

  • Pek JH, Tan HC, Shen G, Ong YG. Apneic Oxygenation for Emergency Intubations in the Pediatric Emergency Department-A Quality Improvement Initiative. Pediatr Qual Saf. 2020 Feb 13;5(2):e255. doi: 10.1097/pq9.0000000000000255. eCollection 2020 Mar-Apr.

  • Mortimer T, Burzynski J, Kesselman M, Vallance J, Hansen G. Apneic Oxygenation during Rapid Sequence Intubation in Critically Ill Children. J Pediatr Intensive Care. 2016 Mar;5(1):28-31. doi: 10.1055/s-0035-1568149. Epub 2015 Nov 18.

  • Scott A, Chua O, Mitchell W, Vlok R, Melhuish T, White L. Apneic Oxygenation for Pediatric Endotracheal Intubation: A Narrative Review. J Pediatr Intensive Care. 2019 Sep;8(3):117-121. doi: 10.1055/s-0039-1678552. Epub 2019 Feb 13.

  • Kurth CD, Thayer WS. A multiwavelength frequency-domain near-infrared cerebral oximeter. Phys Med Biol. 1999 Mar;44(3):727-40. doi: 10.1088/0031-9155/44/3/015.

  • Kurth CD, Steven JL, Montenegro LM, Watzman HM, Gaynor JW, Spray TL, Nicolson SC. Cerebral oxygen saturation before congenital heart surgery. Ann Thorac Surg. 2001 Jul;72(1):187-92. doi: 10.1016/s0003-4975(01)02632-7.

  • Kurth CD, Levy WJ, McCann J. Near-infrared spectroscopy cerebral oxygen saturation thresholds for hypoxia-ischemia in piglets. J Cereb Blood Flow Metab. 2002 Mar;22(3):335-41. doi: 10.1097/00004647-200203000-00011.

  • Tsuji M, Saul JP, du Plessis A, Eichenwald E, Sobh J, Crocker R, Volpe JJ. Cerebral intravascular oxygenation correlates with mean arterial pressure in critically ill premature infants. Pediatrics. 2000 Oct;106(4):625-32. doi: 10.1542/peds.106.4.625.

MeSH Terms

Conditions

Ige Responsiveness, AtopicTracheal StenosisHypoxia, Brain

Condition Hierarchy (Ancestors)

Tracheal DiseasesRespiratory Tract DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesHypoxiaSigns and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Despoina Iordanidou, Consultant

    Hippokratio General Hospital, Thessaloniki, Greece

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Despoina Iordanidou, MD, MSc

CONTACT

Ioannis Tsanakas, MD, PHD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Model Details: This single arm Interventional Study is a comparative clinical trial with the form of before and after intervention (apneic oxygenation), in every participant. During the phases of before and after intervention, parameters of regional cerebral oxygen saturation, peripheral oxygen saturation, arterial blood gases and haemodynamics are recorded in both conditions.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, Pediatric Anesthetist, Senior Consultant, Anesthesiology Dpt, Hippokratic General Hospital Thessaloniki, Greece

Study Record Dates

First Submitted

August 5, 2021

First Posted

August 31, 2021

Study Start

October 21, 2020

Primary Completion

January 31, 2022

Study Completion

August 31, 2022

Last Updated

August 31, 2021

Record last verified: 2021-08

Data Sharing

IPD Sharing
Will not share

Locations