PMID- 28607332 OWN - NLM STAT- MEDLINE DCOM- 20171201 LR - 20190609 IS - 1941-5923 (Electronic) IS - 1941-5923 (Linking) VI - 18 DP - 2017 Jun 13 TI - Massive Ischemic Stroke Due to Pulmonary Barotrauma and Cerebral Artery Air Embolism During Commercial Air Travel. PG - 660-664 AB - BACKGROUND Air embolism into the systemic arterial circulation secondary to pulmonary barotrauma has rarely been reported. Herein, we report the clinical course of an extremely rare presentation of cerebral air embolism likely due to ruptured pulmonary bullae during commercial air travel. CASE REPORT A 65-year-old man suddenly became unconscious during an airplane descent. Upon landing, he was immediately transferred to the nearest emergency department where he was intubated for airway protection. His head CT angiogram showed multiple air pockets in the right parietal lobe suspicious for multiple air emboli. His chest CT scan showed multiple large bullae in the left upper and lower lobes as well as diffusely emphysematous lung tissue. After initial stabilization, he underwent emergent hyperbaric oxygen treatment (HBOT) in the multiplace chamber at 2.8 atmospheres. The patient tolerated HBOT well with no complications. However, his neurologic status deteriorated in the following 24 hours due to progression of his cerebral edema and mass effects. The patient's clinical status was discussed with his family and the decision was made to withdraw life-sustaining measures. He died shortly after withdrawal of life support. Post-mortem examination confirmed the presence of very large bullae in the lungs bilaterally. CONCLUSIONS Spontaneous cerebral air embolism is a possible complication of ruptured pulmonary bullae during air travel. HBOT is well-tolerated and may be used with caution even in the presence of emphysematous bullae. FAU - Farshchi Zarabi, Sara AU - Farshchi Zarabi S AD - Department of Medicine, University of Toronto, Toronto, ON, Canada. FAU - Parotto, Matteo AU - Parotto M AD - Department of Anesthesiology, University of Toronto, Toronto, ON, Canada. FAU - Katznelson, Rita AU - Katznelson R AD - Department of Anesthesiology, University of Toronto, Toronto, ON, Canada. FAU - Downar, James AU - Downar J AD - Interdepartmental Division of Critical Care, University of Toronto, Toronto, ON, Canada. LA - eng PT - Case Reports PT - Journal Article DEP - 20170613 PL - United States TA - Am J Case Rep JT - The American journal of case reports JID - 101489566 SB - IM MH - Aged MH - Barotrauma/*complications MH - Brain Edema/etiology MH - Cerebral Arteries/*diagnostic imaging MH - Clinical Deterioration MH - Embolism, Air/diagnostic imaging/*etiology MH - Fatal Outcome MH - Humans MH - Lung Injury/*etiology MH - Male MH - Stroke/*etiology MH - *Travel-Related Illness PMC - PMC5478217 COIS- Conflict of interest: None declared Conflict of interests No relevant conflict of interests. EDAT- 2017/06/14 06:00 MHDA- 2017/12/02 06:00 PMCR- 2017/06/13 CRDT- 2017/06/14 06:00 PHST- 2017/06/14 06:00 [entrez] PHST- 2017/06/14 06:00 [pubmed] PHST- 2017/12/02 06:00 [medline] PHST- 2017/06/13 00:00 [pmc-release] AID - 903354 [pii] AID - 10.12659/ajcr.903354 [doi] PST - epublish SO - Am J Case Rep. 2017 Jun 13;18:660-664. doi: 10.12659/ajcr.903354.