Inhalational Sedation and Mechanical Power
Study Details
Study Description
Brief Summary
Analgosedation is usually given to critically ill patients admitted in ICU. Fentanyl is the most common agent used for this purpose. For sedative agent, midazolam and propofol are commonly administered. However, too much sedation is apparently associated with increased duration of mechanical ventilation, prolonged ICU stay, and increased mortality.
In mechanically ventilated patients, mechanical power is the respiratory mechanic that can predict clinical outcomes including mortality in both ARDS and non-ARDS patients. Previous study demonstrated that sedating mechanically ventilated patients with propofol could decreased mechanical power. This was possibly associated with improved clinical outcomes in these patients.
At present, there is no clinical study investigating effects of inhalation sedation on mechanical power and clinical outcomes in mechanically ventilated patients.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
In the intensive care unit (ICU), sedation is used to improve comfort and tolerance during mechanical ventilation, invasive diagnostic and therapeutic interventions or nursing care. The most commonly used sedatives are intravenous benzodiazepines and propofol. These agents are associated with over-sedation in 40 to 60% of patients, which can lead to prolonged intubation, delirium and drug-induced hypotension. Volatile anesthetics are increasingly used for sedation in European and Canadian intensive care units that offer advantages of rapid drug on and off effects and clearance via pulmonary exhalation with no active metabolites. Delivery of volatile agents in the ICU can be simply performed using a small lightweight and portable anesthetic reflector so-called anesthesia conserving device. Compared with intravenous sedatives, volatile anesthetics may allow shorter time to extubation and can facilitate mental recovery.
In mechanically ventilated patients, a growing body of evidence suggests that the mechanical power (MP) plays an important role in the ventilator-induce lung injury (VILI) and prognosis in in both acute respiratory distress syndrome (ARDS) and non-ARDS patients. MP is the energy per unit time released to the respiratory system according to the tidal volume, PEEP, respiratory rate, and flow applied. In ARDS patients receiving invasive mechanical ventilation, high MP was associated an increased mortality. Moderate to deep sedation can inhibit the respiratory center and reduces the excessive respiratory drive, thereby reducing transpulmonary pressure and MP as well as probably reducing lung injury. The purpose of this study aims to investigate the effect of inhalation sedation on MP in mechanically ventilated patient admitted in the ICU. We hypothesize that MP in mechanically ventilated patients can be reduced by administering inhalational sedation.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Active Comparator: Conventional sedation Conventional sedation receiving analgosedation with fentanyl |
Drug: Convention sedation
Conventional sedation receiving analgosedation with fentanyl
|
| Experimental: Inhalational sedation Inhalational sedation receiving isoflurane for sedation for 12 hours |
Drug: Inhalational sedation
Inhalational sedation with isoflurane for 12 hours
|
Outcome Measures
Primary Outcome Measures
- Change in mechanical power [At 15 hours after intervention applied]
Change in mechanical power from Phase 1 to Phase 2 compared between 2 groups
Secondary Outcome Measures
- Change in oxygenation [At 15 hours after intervention applied]
Change in oxygenation from Phase 1 to Phase 2 compared between 2 groups
- Change in respiratory mechanic [At 15 hours after intervention applied]
Change in respiratory mechanic from Phase 1 to Phase 2 compared between 2 groups
- Change in serum interleukin 6 [At 15 hours after intervention applied]
Change in serum interleukin 6 from Phase 1 to Phase 2 compared between 2 groups
- Change in serum C-reactive protein [At 15 hours after intervention applied]
Change in serum C-reactive protein from Phase 1 to Phase 2 compared between 2 groups
Eligibility Criteria
Criteria
Inclusion Criteria:
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Patient with age >18 years old; and
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Patient who is admitted to the participating ICU; and
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Patient who receives respiratory support with invasive mechanical ventilation via endotracheal tube < 12 hours prior to inclusion with anticipated duration of > 48 hours
Exclusion Criteria:
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Patient with history or suspected history of malignant hyperthermia
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Patient with evident or suspected increased intracranial pressure
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Patient with high severity of illness whose ICU survival is not expected
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Patient who refuses or patient whose proxy refuses to participate in the study
Contacts and Locations
Locations
No locations specified.Sponsors and Collaborators
- Mahidol University
Investigators
- Principal Investigator: Annop Piriyapatsom, MD, Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University
Study Documents (Full-Text)
None provided.More Information
Publications
- Bomberg H, Meiser F, Zimmer S, Bellgardt M, Volk T, Sessler DI, Groesdonk HV, Meiser A. Halving the volume of AnaConDa: initial clinical experience with a new small-volume anaesthetic reflector in critically ill patients-a quality improvement project. J Clin Monit Comput. 2018 Aug;32(4):639-646. doi: 10.1007/s10877-018-0146-z. Epub 2018 Apr 26.
- Chiumello D, Gotti M, Guanziroli M, Formenti P, Umbrello M, Pasticci I, Mistraletti G, Busana M. Bedside calculation of mechanical power during volume- and pressure-controlled mechanical ventilation. Crit Care. 2020 Jul 11;24(1):417. doi: 10.1186/s13054-020-03116-w.
- Coppola S, Caccioppola A, Froio S, Formenti P, De Giorgis V, Galanti V, Consonni D, Chiumello D. Effect of mechanical power on intensive care mortality in ARDS patients. Crit Care. 2020 May 24;24(1):246. doi: 10.1186/s13054-020-02963-x.
- Costa ELV, Slutsky AS, Brochard LJ, Brower R, Serpa-Neto A, Cavalcanti AB, Mercat A, Meade M, Morais CCA, Goligher E, Carvalho CRR, Amato MBP. Ventilatory Variables and Mechanical Power in Patients with Acute Respiratory Distress Syndrome. Am J Respir Crit Care Med. 2021 Aug 1;204(3):303-311. doi: 10.1164/rccm.202009-3467OC.
- Grap MJ, Munro CL, Wetzel PA, Best AM, Ketchum JM, Hamilton VA, Arief NY, Pickler R, Sessler CN. Sedation in adults receiving mechanical ventilation: physiological and comfort outcomes. Am J Crit Care. 2012 May;21(3):e53-63; quiz e64. doi: 10.4037/ajcc2012301.
- Jerath A, Panckhurst J, Parotto M, Lightfoot N, Wasowicz M, Ferguson ND, Steel A, Beattie WS. Safety and Efficacy of Volatile Anesthetic Agents Compared With Standard Intravenous Midazolam/Propofol Sedation in Ventilated Critical Care Patients: A Meta-analysis and Systematic Review of Prospective Trials. Anesth Analg. 2017 Apr;124(4):1190-1199. doi: 10.1213/ANE.0000000000001634.
- Jerath A, Parotto M, Wasowicz M, Ferguson ND. Volatile Anesthetics. Is a New Player Emerging in Critical Care Sedation? Am J Respir Crit Care Med. 2016 Jun 1;193(11):1202-12. doi: 10.1164/rccm.201512-2435CP.
- Jonkman AH, de Vries HJ, Heunks LMA. Physiology of the Respiratory Drive in ICU Patients: Implications for Diagnosis and Treatment. Crit Care. 2020 Mar 24;24(1):104. doi: 10.1186/s13054-020-2776-z.
- Koutsogiannaki S, Shimaoka M, Yuki K. The Use of Volatile Anesthetics as Sedatives for Acute Respiratory Distress Syndrome. Transl Perioper Pain Med. 2019;6(2):27-38. doi: 10.31480/2330-4871/084. Epub 2019 Feb 21.
- Landoni G, Pasin L, Cabrini L, Scandroglio AM, Baiardo Redaelli M, Votta CD, Bellandi M, Borghi G, Zangrillo A. Volatile Agents in Medical and Surgical Intensive Care Units: A Meta-Analysis of Randomized Clinical Trials. J Cardiothorac Vasc Anesth. 2016 Aug;30(4):1005-14. doi: 10.1053/j.jvca.2016.02.021. Epub 2016 Feb 23.
- Sahetya SK, Goligher EC, Brower RG. Fifty Years of Research in ARDS. Setting Positive End-Expiratory Pressure in Acute Respiratory Distress Syndrome. Am J Respir Crit Care Med. 2017 Jun 1;195(11):1429-1438. doi: 10.1164/rccm.201610-2035CI. Erratum In: Am J Respir Crit Care Med. 2018 Mar 1;197(5):684-685.
- Serpa Neto A, Deliberato RO, Johnson AEW, Bos LD, Amorim P, Pereira SM, Cazati DC, Cordioli RL, Correa TD, Pollard TJ, Schettino GPP, Timenetsky KT, Celi LA, Pelosi P, Gama de Abreu M, Schultz MJ; PROVE Network Investigators. Mechanical power of ventilation is associated with mortality in critically ill patients: an analysis of patients in two observational cohorts. Intensive Care Med. 2018 Nov;44(11):1914-1922. doi: 10.1007/s00134-018-5375-6. Epub 2018 Oct 5.
- Spinelli E, Mauri T, Beitler JR, Pesenti A, Brodie D. Respiratory drive in the acute respiratory distress syndrome: pathophysiology, monitoring, and therapeutic interventions. Intensive Care Med. 2020 Apr;46(4):606-618. doi: 10.1007/s00134-020-05942-6. Epub 2020 Feb 3.
- Xie Y, Cao L, Qian Y, Zheng H, Liu K, Li X. Effect of Deep Sedation on Mechanical Power in Moderate to Severe Acute Respiratory Distress Syndrome: A Prospective Self-Control Study. Biomed Res Int. 2020 Apr 11;2020:2729354. doi: 10.1155/2020/2729354. eCollection 2020.
- 385/2565(IRB2)