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Clinical Trial Details — Status: Withdrawn

Administrative data

NCT number NCT04288076
Other study ID # 2019P000830
Secondary ID
Status Withdrawn
Phase N/A
First received
Last updated
Start date September 2020
Est. completion date October 15, 2020

Study information

Verified date January 2021
Source Beth Israel Deaconess Medical Center
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to understand the relationship between intracranial pressure and airway pressures during mechanical ventilation. This study is a single-center, prospective cohort study to be conducted at Beth Israel Deaconess Medical Center. The investigators will recruit patients with severe brain injury (GCS 8 or less) who receive intracranial pressure monitoring and mechanical ventilation as part of their routine medical care. The primary endpoint is the change in intracranial pressure as a function of positive end-expiratory pressure. There is only one study encounter with safety monitoring for up to 24 hours after. No additional follow up is required.


Recruitment information / eligibility

Status Withdrawn
Enrollment 0
Est. completion date October 15, 2020
Est. primary completion date October 15, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Patients with severe brain injury (GCS 8 or less) who receive both mechanical ventilation and intracranial pressure monitoring as part of their standard medical care will be considered eligible. Exclusion Criteria: - Patients with esophageal varices - Patients with esophageal trauma - Patients with recent esophageal surgery - Patients with coagulopathy (Platelets < 80k or INR> 2 ) - Other contraindication for esophageal manometry - Patients who are receiving PEEP greater than 15 cmH2O within 24 hours prior to enrollment - Intracranial hypertension (defined as ICP greater than 20 mmHg) within 48 hours prior to enrollment - Decompressive hemi-craniectomy Cessation Criteria: Study related ventilator adjustments and measurements will be stopped at any point during the intervention and ventilator settings will be returned to the pre-intervention settings under the following conditions: - If ICP increases above 20mmHg, regardless of the duration of the event. - If systolic blood pressure decreases below 90mmHg, regardless of the duration of the event. - If systolic blood pressure increases above 180mmHg, regardless of the duration of the event.

Study Design


Intervention

Other:
PEEP Titrated Mechanical Ventilation
Subjects will receive a sequential, step-wise increase in positive end-expired pressure from 5 cmH2O to 15 cmH2O and back down to 5 cmH20. Pleural pressure and intracranial pressure will be measured at each increment. PEEP will be increased by increments of 5 cmH2O. The physiologic measurements will be obtained at regular intervals (within 5 minutes at each PEEP level) throughout the PEEP titration period. The mode of mechanical ventilation (pressure or volume control), inspiratory time and fraction of inspired oxygen (FIO2) will be determined by the critical care team caring for the patient. In the event that PEEP is set > 5 cmH2O, measurements will be obtained from that starting point and increased to a maximum of 15 cmH2O. At the completion of the study patients will be returned to the PEEP level they were on prior to titration of the ventilator.

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Beth Israel Deaconess Medical Center

References & Publications (10)

Acute Respiratory Distress Syndrome Network, Brower RG, Matthay MA, Morris A, Schoenfeld D, Thompson BT, Wheeler A. Ventilation with lower tidal volumes as compared with traditional tidal volumes for acute lung injury and the acute respiratory distress syndrome. N Engl J Med. 2000 May 4;342(18):1301-8. — View Citation

Caricato A, Conti G, Della Corte F, Mancino A, Santilli F, Sandroni C, Proietti R, Antonelli M. Effects of PEEP on the intracranial system of patients with head injury and subarachnoid hemorrhage: the role of respiratory system compliance. J Trauma. 2005 Mar;58(3):571-6. — View Citation

Huynh T, Messer M, Sing RF, Miles W, Jacobs DG, Thomason MH. Positive end-expiratory pressure alters intracranial and cerebral perfusion pressure in severe traumatic brain injury. J Trauma. 2002 Sep;53(3):488-92; discussion 492-3. — View Citation

Malhotra A. Low-tidal-volume ventilation in the acute respiratory distress syndrome. N Engl J Med. 2007 Sep 13;357(11):1113-20. Review. — View Citation

Mascia L, Grasso S, Fiore T, Bruno F, Berardino M, Ducati A. Cerebro-pulmonary interactions during the application of low levels of positive end-expiratory pressure. Intensive Care Med. 2005 Mar;31(3):373-9. Epub 2005 Jan 25. — View Citation

Pelosi P, Ferguson ND, Frutos-Vivar F, Anzueto A, Putensen C, Raymondos K, Apezteguia C, Desmery P, Hurtado J, Abroug F, Elizalde J, Tomicic V, Cakar N, Gonzalez M, Arabi Y, Moreno R, Esteban A; Ventila Study Group. Management and outcome of mechanically ventilated neurologic patients. Crit Care Med. 2011 Jun;39(6):1482-92. doi: 10.1097/CCM.0b013e31821209a8. — View Citation

Pelosi P, Rocco PR. The lung and the brain: a dangerous cross-talk. Crit Care. 2011;15(3):168. doi: 10.1186/cc10259. Epub 2011 Jun 30. Review. — View Citation

Quilez ME, Fuster G, Villar J, Flores C, Martí-Sistac O, Blanch L, López-Aguilar J. Erratum to: Injurious mechanical ventilation affects neuronal activation in ventilated rats. Crit Care. 2015 Oct 27;19:379. doi: 10.1186/s13054-015-1076-5. — View Citation

Rincon F, Ghosh S, Dey S, Maltenfort M, Vibbert M, Urtecho J, McBride W, Moussouttas M, Bell R, Ratliff JK, Jallo J. Impact of acute lung injury and acute respiratory distress syndrome after traumatic brain injury in the United States. Neurosurgery. 2012 Oct;71(4):795-803. — View Citation

Stevens RD, Lazaridis C, Chalela JA. The role of mechanical ventilation in acute brain injury. Neurol Clin. 2008 May;26(2):543-63, x. doi: 10.1016/j.ncl.2008.03.014. Review. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Change in intracranial pressure The primary endpoint is the change in intracranial pressure as a function of positive end-expiratory pressure. Change from baseline to 20 minutes
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