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| Name | Class |
|---|---|
| Venizeleio General Hospital, Heraklion, Crete | UNKNOWN |
| Larissa University Hospital | OTHER |
| Sotiria General Hospital | OTHER |
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Although non-invasive ventilation (NIV) usage has increased significantly over time in COPD exacerbation, a great percentage of patients (~30%) present contraindications to NIV or cannot tolerate it. Nasal high flow (NHF) has been introduced for the management of hypoxemic respiratory failure in adults with favorable effects on ventilation and respiratory mechanics. The above mentioned NHF positive effects has been observed also in stable COPD patients with or without chronic hypercapnia.
In this study, the investigators hypothesize that NHF is not inferior to NIV for respiratory support in patients with COPD exacerbation and acute or acute on chronic hypercapnic respiratory failure.
The use of non-invasive ventilation (NIV) in COPD exacerbation has increased significantly over time since it has been shown to improve acute respiratory acidosis (increases pH and decreases PaCO2), decrease respiratory rate, work of breathing, severity of breathlessness and therefore reduce mortality and intubation rates.
Despite all these favorable effect, a great percentage of patients (~30%) present contraindications to NIV or cannot tolerate it increasing thus the possibility of NIV failure and consequently intubation rates.
Over the past decade, nasal high flow (NHF) oxygen therapy has been introduced for the management of hypoxemic respiratory failure in adults. NHF can generate high flow rates up to 60 L·min-1 and through this mechanism exerts its positive effects on respiratory mechanics, carbon dioxide washout, patient's respiratory rate and work of breathing. Although the above mentioned NHF positive effects has been observed also in stable COPD patients with or without chronic hypercapnia, NHF use in COPD exacerbation is questionable and only a few case reports studies have been published showing favorable effects of NHF on COPD exacerbation.
In this study, the investigators hypothesize that NHF is not inferior to NIV for respiratory support in patients with COPD exacerbation and acute or acute on chronic hypercapnic respiratory failure.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Nasal High Flow | Experimental | Patients randomized to NHF device with initial settings of flow=50-60 L·min-1, temperature=37ο Celsius and FiO2 adjusted to maintain SpO2 between 88%-92%. |
|
| Non-Invasive Ventilation | Active Comparator | Patients randomized to NIV with initial settings EPAP=3cmH2O, IPAP=15cmH2O, I:E=1:2 to 1:3, inspiratory time=0.8-1.2sec and FiO2 adjusted to maintain SpO2 between 88%-92%. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Nasal High Flow | Device | Patients admitted to emergency department with COPD exacerbation combined with mild to moderate acute or acute on chronic hypercapnic respiratory failure will be randomized in one of the two study groups. In case of NHF it will be commence immediately with pre-defined settings |
| Measure | Description | Time Frame |
|---|---|---|
| Frequency of treatment failure | As treatment failure is defined any need to switch to other treatment group because of discomfort, intolerance or failure to improve physiologic parameters (especially respiratory rate and ABG) despite optimum settings | The first assessment will be held at 2 hours |
| Measure | Description | Time Frame |
|---|---|---|
| Changes on respiratory rate | This secondary outcome includes changes on respiratory rate (breaths per minute) | They will be assessed on baseline, before NIV or NHF initiation, and on 1, 2, 4, 6, 12, 24, 48 hours and once daily after day 3. |
| Changes on arterial partial pressure of oxygen |
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Inclusion Criteria:
Patient with mild to moderate COPD exacerbation and the following characteristics persisting after initial medical therapy with bronchodilators and controlled oxygen therapy
Ability to obtain written informed consent by the patient or patient's next of kin
Exclusion Criteria:
severe facial deformity
Facial burns
Fixed upper airway obstruction
Criteria for imminent intubation and invasive mechanical ventilation (any of the following)
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Eleni Ischaki, MD, PhD | Contact | +306974856544 | eischaki@yahoo.gr |
| Name | Affiliation | Role |
|---|---|---|
| Spyros Zakynthinos, MD, PhD, FCCP | Evangelismos Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Venizeleio Hospital | Recruiting | Heraklion | Crete | 71409 | Greece |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 26976648 | Result | Davidson AC, Banham S, Elliott M, Kennedy D, Gelder C, Glossop A, Church AC, Creagh-Brown B, Dodd JW, Felton T, Foex B, Mansfield L, McDonnell L, Parker R, Patterson CM, Sovani M, Thomas L; BTS Standards of Care Committee Member, British Thoracic Society/Intensive Care Society Acute Hypercapnic Respiratory Failure Guideline Development Group, On behalf of the British Thoracic Society Standards of Care Committee. BTS/ICS guideline for the ventilatory management of acute hypercapnic respiratory failure in adults. Thorax. 2016 Apr;71 Suppl 2:ii1-35. doi: 10.1136/thoraxjnl-2015-208209. No abstract available. | |
| 28794144 |
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Information that are planned to be shared re study protocol, statistical analysis and clinical study report. They will be shared after 3 months of study publication to anyone who is interested in writing a meta-analysis or review
3 months after publication
To anyone who is interested in writing a meta-analysis or review
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| ID | Term |
|---|---|
| D029424 | Pulmonary Disease, Chronic Obstructive |
| D012131 | Respiratory Insufficiency |
| ID | Term |
|---|---|
| D008173 | Lung Diseases, Obstructive |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D002908 | Chronic Disease |
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| ID | Term |
|---|---|
| D063087 | Noninvasive Ventilation |
| ID | Term |
|---|---|
| D012121 | Respiration, Artificial |
| D058109 | Airway Management |
| D013812 | Therapeutics |
| D012138 | Respiratory Therapy |
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|
| Non-Invasive Ventilation | Device | Patients admitted to emergency department with COPD exacerbation combined with mild to moderate acute or acute on chronic hypercapnic respiratory failure will be randomized in one of the two study groups. In case of NIV it will be commence immediately with pre-defined settings |
|
This secondary outcome includes changes on arterial partial pressure of oxygen values (unit of measure will be mmHg) |
| They will be assessed on baseline, before NIV or NHF initiation, and on 1, 2, 4, 6, 12, 24, 48 hours and once daily after day 3. |
| Changes on arterial partial pressure of carbon dioxide | This secondary outcome includes changes on arterial partial pressure of carbon dioxide (unit of measure will be mmHg) | They will be assessed on baseline, before NIV or NHF initiation, and on 1, 2, 4, 6, 12, 24, 48 hours and once daily after day 3. |
| Changes on arterial pH | This secondary outcome includes changes on arterial pH values | They will be assessed on baseline, before NIV or NHF initiation, and on 1, 2, 4, 6, 12, 24, 48 hours and once daily after day 3. |
| Changes on respiratory accessory muscle use | This secondary outcome includes recording of respiratory accessory muscle use (recording will be yes or no) | They will be assessed on baseline, before NIV or NHF initiation, and on 1, 2, 4, 6, 12, 24, 48 hours and once daily after day 3. |
| Patient's dyspnea | Dyspnea will be assessed with a 10-point visual analog scale and also Borg scale for dyspnea | They will be assessed on baseline, before NIV or NHF initiation, and on 1, 2, 4, 6, 12, 24, 48 hours and once daily after day 3 (in those subjects whose neurological status allowed them to complete the evaluation) |
| Pulmonary complications | Any pulmonary complication will be assessed and correlated with the allocated treatment | They will be assessed on baseline, before NIV or NHF initiation, and on 1, 2, 4, 6, 12, 24, 48 hours and once daily after day 3. |
| Extrapulmonary complications | Any extrapulmonary complication will be assessed and correlated with the allocated treatment | They will be assessed on baseline, before NIV or NHF initiation, and on 1, 2, 4, 6, 12, 24, 48 hours and once daily after day 3 |
| Evangelismos Hospital | Recruiting | Athens | 10673 | Greece |
|
| University General Hospital of Larisa | Recruiting | Larissa | 41110 | Greece |
|
| Result |
| Ischaki E, Pantazopoulos I, Zakynthinos S. Nasal high flow therapy: a novel treatment rather than a more expensive oxygen device. Eur Respir Rev. 2017 Aug 9;26(145):170028. doi: 10.1183/16000617.0028-2017. Print 2017 Sep 30. |
| 27997805 | Result | Mauri T, Turrini C, Eronia N, Grasselli G, Volta CA, Bellani G, Pesenti A. Physiologic Effects of High-Flow Nasal Cannula in Acute Hypoxemic Respiratory Failure. Am J Respir Crit Care Med. 2017 May 1;195(9):1207-1215. doi: 10.1164/rccm.201605-0916OC. |
| 27668173 | Result | Fricke K, Tatkov S, Domanski U, Franke KJ, Nilius G, Schneider H. Nasal high flow reduces hypercapnia by clearance of anatomical dead space in a COPD patient. Respir Med Case Rep. 2016 Aug 26;19:115-7. doi: 10.1016/j.rmcr.2016.08.010. eCollection 2016. |
| 27815367 | Result | Biselli PJ, Kirkness JP, Grote L, Fricke K, Schwartz AR, Smith P, Schneider H. Nasal high-flow therapy reduces work of breathing compared with oxygen during sleep in COPD and smoking controls: a prospective observational study. J Appl Physiol (1985). 2017 Jan 1;122(1):82-88. doi: 10.1152/japplphysiol.00279.2016. Epub 2016 Nov 4. |
| 26339486 | Result | Braunlich J, Seyfarth HJ, Wirtz H. Nasal High-flow versus non-invasive ventilation in stable hypercapnic COPD: a preliminary report. Multidiscip Respir Med. 2015 Sep 3;10(1):27. doi: 10.1186/s40248-015-0019-y. eCollection 2015. |
| 27015801 | Result | Fraser JF, Spooner AJ, Dunster KR, Anstey CM, Corley A. Nasal high flow oxygen therapy in patients with COPD reduces respiratory rate and tissue carbon dioxide while increasing tidal and end-expiratory lung volumes: a randomised crossover trial. Thorax. 2016 Aug;71(8):759-61. doi: 10.1136/thoraxjnl-2015-207962. Epub 2016 Mar 25. |
| 28104830 | Result | Pisani L, Fasano L, Corcione N, Comellini V, Musti MA, Brandao M, Bottone D, Calderini E, Navalesi P, Nava S. Change in pulmonary mechanics and the effect on breathing pattern of high flow oxygen therapy in stable hypercapnic COPD. Thorax. 2017 Apr;72(4):373-375. doi: 10.1136/thoraxjnl-2016-209673. Epub 2017 Jan 19. |
| 26947372 | Result | Lepere V, Messika J, La Combe B, Ricard JD. High-flow nasal cannula oxygen supply as treatment in hypercapnic respiratory failure. Am J Emerg Med. 2016 Sep;34(9):1914.e1-2. doi: 10.1016/j.ajem.2016.02.020. Epub 2016 Feb 12. No abstract available. |
| 39111544 | Derived | Pantazopoulos I, Boutlas S, Mavrovounis G, Papalampidou A, Papagiannakis N, Kontou M, Bibaki E, Athanasiou N, Meletis G, Gourgoulianis K, Zakynthinos S, Ischaki E. Nasal high flow or noninvasive ventilation? navigating hypercapnic COPD exacerbation treatment: A randomized noninferiority clinical trial. Respir Med. 2024 Oct;232:107762. doi: 10.1016/j.rmed.2024.107762. Epub 2024 Aug 5. |
| D020969 |
| Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012120 | Respiration Disorders |