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Ciris PA. Editorial for "Assessment of Cerebrovascular Reactivity Using CO 2-BOLD MRI: A 15-Year, Single Center Experience". J Magn Reson Imaging 2024; 60:962-963. [PMID: 38213089 DOI: 10.1002/jmri.29239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024] Open
Affiliation(s)
- Pelin A Ciris
- Department of Computing and Software Engineering, Florida Gulf Coast University, Fort Myers, Florida, USA
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Plitman E, Venkatraghavan L, Agrawal S, Raghavan V, Chowdhury T, Sobczyk O, Sayin ES, Poublanc J, Duffin J, Mikulis D, Fisher J. Variability of Resting Carbon Dioxide Tension in Patients with Intracranial Steno-occlusive Disease. Asian J Neurosurg 2024; 19:235-241. [PMID: 38974441 PMCID: PMC11226286 DOI: 10.1055/s-0044-1786699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024] Open
Abstract
Introduction Controlling the partial pressure of carbon dioxide (PaCO 2 ) is an important consideration in patients with intracranial steno-occlusive disease to avoid reductions in critical perfusion from vasoconstriction due to hypocapnia, or reductions in blood flow due to steal physiology during hypercapnia. However, the normal range for resting PCO 2 in this patient population is not known. Therefore, we investigated the variability in resting end-tidal PCO 2 (P ET CO 2 ) in patients with intracranial steno-occlusive disease and the impact of revascularization on resting P ET CO 2 in these patients. Setting and Design Tertiary care center, retrospective chart review Materials and Methods We collected resting P ET CO 2 values in adult patients with intracranial steno-occlusive disease who presented to our institution between January 2010 and June 2021. We also explored postrevascularization changes in resting P ET CO 2 in a subset of patients. Results Two hundred and twenty-seven patients were included [moyamoya vasculopathy ( n = 98) and intracranial atherosclerotic disease ( n = 129)]. In the whole cohort, mean ± standard deviation resting P ET CO 2 was 37.8 ± 3.9 mm Hg (range: 26-47). In patients with moyamoya vasculopathy and intracranial atherosclerotic disease, resting P ET CO 2 was 38.4 ± 3.6 mm Hg (range: 28-47) and 37.4 ± 4.1 mm Hg (range: 26-46), respectively. A trend was identified suggesting increasing resting P ET CO 2 after revascularization in patients with low preoperative resting P ET CO 2 (<38 mm Hg) and decreasing resting P ET CO 2 after revascularization in patients with high preoperative resting P ET CO 2 (>38 mm Hg). Conclusion This study demonstrates that resting P ET CO 2 in patients with intracranial steno-occlusive disease is highly variable. In some patients, there was a change in resting P ET CO 2 after a revascularization procedure.
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Affiliation(s)
- Eric Plitman
- Department of Anesthesia and Pain Management, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Lashmi Venkatraghavan
- Department of Anesthesia and Pain Management, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Sanket Agrawal
- Department of Anesthesia and Pain Management, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Vishvak Raghavan
- Department of Computer Science, Faculty of Science, McGill University, Montreal, Quebec, Canada
| | - Tumul Chowdhury
- Department of Anesthesia and Pain Management, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Olivia Sobczyk
- Department of Anesthesia and Pain Management, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Ece Su Sayin
- Joint Department of Medical Imaging and the Functional Neuroimaging Laboratory, University Health Network, Toronto, ON, Canada
| | - Julien Poublanc
- Joint Department of Medical Imaging and the Functional Neuroimaging Laboratory, University Health Network, Toronto, ON, Canada
| | - James Duffin
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - David Mikulis
- Joint Department of Medical Imaging and the Functional Neuroimaging Laboratory, University Health Network, Toronto, ON, Canada
| | - Joseph Fisher
- Department of Anesthesia and Pain Management, University Health Network, University of Toronto, Toronto, Ontario, Canada
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