Airway Pressure and Lumen Changes During NIV With Flexible Bronchoscopy

Airway Disease Clinical Trial

Official title:

Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03666403
• Other study ID #: 2017-07-009B
• Status: Completed
• Phase: N/A
• Start date: January 1, 2018
• Est. completion date: July 13, 2018

Study information

• Verified date: September 2018
• Source: Taipei Veterans General Hospital, Taiwan
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Introduction: The non-invasive ventilation (NIV) of continuous nasopharyngeal O2 with intermittent close/open nose and abdomen compression (PO2-NC-AC) can provide effective oxygenation, ventilation and circulation. It needs no any instruments, therefore no limits upper and lower airways. Both animal, clinical studies and experiences have already demonstrated its safety and efficacy in high risky and severe asphyxiated conditions. Making pressure (PEEP and PIP) changes is an essential for creating assist PPV. In children, airway lumen images are dynamic and positively correlate to the intraluminal pressure levels, such as the lumen open or close pressure. Closely measuring and monitoring these airway pressures and associated lumen image changes can benefit for making accurate diagnosis and enhance clinical management.

Purpose: Prospective study to evaluate the dynamic changes of upper and lower airway: 1) PEEP and PIP levels; and 2) the associated changes of lumen image by using FB with this NIV technique in small children with airway anomaly.

Study candidates: Children who: a) need FB examination or management for clinical reasons; b) age ≤5 year-old; and c) with airway anomaly; will enroll to this study. Expect enrolls a total of 30 children in one-year period.

Methods: As usually doing the FB with cardiopulmonary monitor and this NIV support in pediatric intensive care unit settings. A small catheter connects the inner cannel of FB and links to a pressure monitor. During course of FB, records the intra-airway lumen pressures (PEEP, PIP) and takes associated images. Total record (study) time in each enrolled case about 5 minutes. This study will not prolong the FB time. Finally, analysis these associated data.

Prediction: This study (30 enrolled cases) can smoothly complete in one-year period.

Benefits: This modality of FB with NIV may: 1) more safely doing; 2) get scientific data to prove it's efficacy; and 3) benefit for both clinical diagnosis and management; in children with airway anomaly.

Description:

• As usually doing the FB with cardiopulmonary monitor and this NIV support in pediatric intensive care unit settings.

• A small catheter connects the inner cannel of FB and links to a pressure monitor.

• During course of FB, records the intra-lumen pressures (PEEP, PIP) and takes associated images at assigned 6 airway locations, if possible.

• These 6 locations are: Oropharynx, Supra-glottis, Mid-trachea, Supra-carina Right main bronchus, and Left main bronchus.

• Thus, a complete FB would involve 6 pairs of measurements in each child.

• Both results of PIP levels and images were then stored in a computer for later analysis.

• Total record (study) time in each enrolled case about 5 minutes. This study will not prolong the FB time. Finally, analysis these associated data.

• For objective evaluation of the lumen changes, three captured images were grouped by 6 locations in each child. These lumen dimensions were independently judged on a five-point Likert scale (1 to 5: very collapse, collapse, average, expansion, very expansion) within one week by four qualified pediatric bronchoscopists who were blinded to the source of these images. The final scores were averaged and analyzed.

• Statistical Analysis: The categorical variables were described as percentages and compared with the Chi-square or Fisher's exact test as appropriate. A two-tailed p <0.05 was considered to be statistically significant.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 30
• Est. completion date: July 13, 2018
• Est. primary completion date: June 30, 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 6 Months to 3 Years

Eligibility

Inclusion Criteria:

• age no more than 3 years old

• a natural airway lumen without prior plasty;

• difficult weaning from current respiratory support and therefore

• scheduled for elective FB for highly suspected airway problems.

Exclusion Criteria:

• uncontrollable cardiopulmonary failure

• body weight less than 2.0 kg

• bleeding tendency.

• fixed/ too narrowed airways where the FB (OD 3.8 mm) could not pass through

Related Conditions & MeSH terms

• Airway Disease

Intervention

Procedure:
• NIV rate: 0/min
A basic PhO2 flow was routinely provided. A small pharyngeal catheter with warmed, humidified and fixed pure oxygen flow was inserted via one nostril to ensured catheter tip positioning in the oropharynx. The NIV was performed in the following steps. Firmly closed the mouth, then intermittently applied a) assisted inspiration by nose-closure accompanied with cricoid depression; and b) assisted expiration by the release of above nose and cricoid maneuver but with simultaneous abdomen-compression. The above assisted ventilation cycle was maintained at a rate of 0-20 cycles per minute. The scopist executed both the FB and the nose-closure and release, whereas an assistant delivered the abdomen compression.
• NIV rate: 10-20/min
A basic PhO2 flow was routinely provided. A small pharyngeal catheter with warmed, humidified and fixed pure oxygen flow was inserted via one nostril to ensured catheter tip positioning in the oropharynx. The NIV was performed in the following steps. Firmly closed the mouth, then intermittently applied a) assisted inspiration by nose-closure accompanied with cricoid depression; and b) assisted expiration by the release of above nose and cricoid maneuver but with simultaneous abdomen-compression. The above assisted ventilation cycle was maintained at a rate of 0-20 cycles per minute. The scopist executed both the FB and the nose-closure and release, whereas an assistant delivered the abdomen compression.
• NIV rate: 5-10/min
A basic PhO2 flow was routinely provided. A small pharyngeal catheter with warmed, humidified and fixed pure oxygen flow was inserted via one nostril to ensured catheter tip positioning in the oropharynx. The NIV was performed in the following steps. Firmly closed the mouth, then intermittently applied a) assisted inspiration by nose-closure accompanied with cricoid depression; and b) assisted expiration by the release of above nose and cricoid maneuver but with simultaneous abdomen-compression. The above assisted ventilation cycle was maintained at a rate of 0-20 cycles per minute. The scopist executed both the FB and the nose-closure and release, whereas an assistant delivered the abdomen compression.

Locations

Country	Name	City	State
Taiwan	Taipei-Veterans General Hospital	Taipei
Taiwan	Teipei Veterans General Hospital	Taipei

Sponsors (1)

Lead Sponsor	Collaborator
Taipei Veterans General Hospital, Taiwan

Country where clinical trial is conducted

Taiwan, 

References & Publications (29)

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Lee YS, Soong WJ, Jeng MJ, Cheng CY, Shen CM, Sun J, Chen CF, Hwang B. Flexible endoscopy of aerodigestive tract in small infants. Pediatr Int. 2003 Oct;45(5):530-3. — View Citation

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Lin YT, Lee YS, Jeng MJ, Chen WY, Tsao PC, Chan IC, Soong WJ. Flexible bronchoscopic findings and the relationship to repeated extubation failure in critical children. J Chin Med Assoc. 2018 Sep;81(9):804-810. doi: 10.1016/j.jcma.2018.03.008. Epub 2018 Ma — View Citation

Peng YY, Soong WJ, Lee YS, Tsao PC, Yang CF, Jeng MJ. Flexible bronchoscopy as a valuable diagnostic and therapeutic tool in pediatric intensive care patients: a report on 5 years of experience. Pediatr Pulmonol. 2011 Oct;46(10):1031-7. doi: 10.1002/ppul. — View Citation

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Soong WJ, Jeng MJ, Hwang B. Direct tracheobronchial suction for massive post-extubation atelectasis in premature infants. Zhonghua Min Guo Xiao Er Ke Yi Xue Hui Za Zhi. 1996 Jul-Aug;37(4):266-71. Erratum in: Acta Paediatr Sin 1996 Sep-Oct;37(5):396. — View Citation

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Soong WJ, Jeng MJ, Lee YS, Tsao PC, Harloff M, Matthew Soong YH. A novel technique of non-invasive ventilation: Pharyngeal oxygen with nose-closure and abdominal-compression--Aid for pediatric flexible bronchoscopy. Pediatr Pulmonol. 2015 Jun;50(6):568-75 — View Citation

Soong WJ, Jeng MJ, Lee YS, Tsao PC, Soong YH. Nasopharyngeal oxygen with intermittent nose-close and abdomen-compression: a novel resuscitation technique in a piglet model. Pediatr Pulmonol. 2013 Mar;48(3):288-94. doi: 10.1002/ppul.22592. Epub 2012 May 2. — View Citation

Soong WJ, Jeng MJ, Lee YS, Tsao PC, Yang CF, Soong YH. Pediatric obstructive fibrinous tracheal pseudomembrane--characteristics and management with flexible bronchoscopy. Int J Pediatr Otorhinolaryngol. 2011 Aug;75(8):1005-9. doi: 10.1016/j.ijporl.2011.04 — View Citation

Soong WJ, Lee YS, Soong YH, Tsao PC, Yang CF, Jeng MJ, Peng YY. Tracheal foreign body after laser supraglottoplasty: a hidden but risky complication of an aluminum foil tape-wrapped endotracheal tube. Int J Pediatr Otorhinolaryngol. 2010 Dec;74(12):1432-4 — View Citation

Soong WJ, Lee YS, Tsao PC, Yang CF, Jeng MJ. Comparison of oxygenation among different supplemental oxygen methods during flexible bronchoscopy in infants. J Chin Med Assoc. 2011 Dec;74(12):556-60. doi: 10.1016/j.jcma.2011.09.016. Epub 2011 Oct 28. — View Citation

Soong WJ, Shiao AS, Jeng MJ, Lee YS, Tsao PC, Yang CF, Soong YH. Comparison between rigid and flexible laser supraglottoplasty in the treatment of severe laryngomalacia in infants. Int J Pediatr Otorhinolaryngol. 2011 Jun;75(6):824-9. doi: 10.1016/j.ijpor — View Citation

Soong WJ, Tsao PC, Lee YS, Yang CF, Liao J, Jeng MJ. Retrieving difficult aspirated pen caps by balloon catheter with short working-length flexible endoscopy and noninvasive ventilation support in intensive care unit. Int J Pediatr Otorhinolaryngol. 2015 — View Citation

Soong WJ, Tsao PC, Lee YS, Yang CF. Flexible endoscopy for pediatric tracheobronchial metallic stent placement, maintenance and long-term outcomes. PLoS One. 2018 Feb 8;13(2):e0192557. doi: 10.1371/journal.pone.0192557. eCollection 2018. — View Citation

Soong WJ, Tsao PC, Lee YS, Yang CF. Retrieval of tracheobronchial foreign bodies by short flexible endoscopy in children. Int J Pediatr Otorhinolaryngol. 2017 Apr;95:109-113. doi: 10.1016/j.ijporl.2017.01.033. Epub 2017 Feb 16. — View Citation

Soong WJ, Tsao PC, Lee YS, Yang CF. Therapeutic flexible airway endoscopy of small children in a tertiary referral center-11 years' experience. PLoS One. 2017 Aug 17;12(8):e0183078. doi: 10.1371/journal.pone.0183078. eCollection 2017. — View Citation

Soong WJ, Yuh YS. Ingested button battery retrieved by a modified magnet endoscope. J Chin Med Assoc. 2007 Mar;70(3):132-5. — View Citation

Soong WJ. Adjusting the endotracheal tube tip in management of tracheomalacia in an infant. Int J Pediatr Otorhinolaryngol. 2004 Aug;68(8):1105-8. — View Citation

Soong WJ. Endoscopic diagnosis and management of iatrogenic cervical esophageal perforation in extremely premature infants. J Chin Med Assoc. 2007 Apr;70(4):171-5. — View Citation

Soong WJ. Endoscopic intubation with aid of mechanical ventilation via a dedicated nasopharyngeal airway. J Chin Med Assoc. 2007 Sep;70(9):400-2. — View Citation

Yang CF, Niu DM, Jeng MJ, Lee YS, Taso PC, Soong WJ. Late-onset Pompe disease with left-sided bronchomalacia. Respir Care. 2015 Feb;60(2):e26-9. doi: 10.4187/respcare.03419. Epub 2014 Oct 14. — View Citation

Yang CF, Soong WJ, Jeng MJ, Chen SJ, Lee YS, Tsao PC, Hwang B, Wei CF, Chin TW, Liu C. Esophageal atresia with tracheoesophageal fistula: ten years of experience in an institute. J Chin Med Assoc. 2006 Jul;69(7):317-21. — View Citation

* Note: There are 29 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Intra- airway Positive inspiration pressure (PIP)	When doing these 3 modes of NIV, measure the intra-airway PIP at 6 assigned different locations.; When doing this NIV, measure the PIP at 6 different airway locations	intra-procedure, when the tips of FB locate in the assigned airway location
Secondary	Intra-airway lumen expansion	When doing these 3 modes of NIV, take and measure the lumen expansion at 6 different airway locations.	intra-procedure, when the tips of FB locate in the assigned airway location