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DOI: 10.1055/s-0044-1779597
Precision in Anesthesia for Awake Craniotomies: Confronting Surgical Challenges
Awake craniotomy has significantly impacted neurosurgical procedures, particularly for operations that necessitate maximal preservation of neurological functions.[1] This technique, which involves the patient being awake during the surgery, requires a sophisticated approach to anesthetic management, combining a deep understanding of neurophysiology with the ability to navigate the unique challenges presented by individual pathologies.[2] Recent advancements in technology and anesthetic techniques have further refined awake craniotomy, making it a more viable option for a wider range of patients. This editorial aims to dissect the recent literature, integrating insights into anesthetic strategies, patient safety, and multidisciplinary collaboration to provide a comprehensive view of the evolving landscape of the procedure.
Thakkar and colleagues performed a comparative analysis between propofol and dexmedetomidine, two primary sedatives during awake craniotomy.[3] The study illuminates the differential impacts of these agents on intraoperative neurological assessment and patient comfort. While both have proven effective, their use must be tailored to individual patient characteristics and surgical demands. The article importantly underscores the need for larger, prospective trials to establish more robust, evidence-based protocols for sedation in awake craniotomy. Such research is crucial for advancing our understanding of how to utilize sedatives best, balancing the need for patient cooperation with the necessity of minimizing neurological interference and ensuring patient safety.
Shah and colleagues[4] performed a nuanced case study of awake craniotomy for cerebral abscess in a patient with a pulmonary arteriovenous malformation (PAVM), a complex condition that significantly impacts anesthetic management. PAVMs are associated with the risks of hypoxemia and paradoxical embolism, particularly under general anesthesia (GA). Hence, awake craniotomy in this scenario was chosen as an alternative anesthetic technique with the objective of reducing perioperative complications. While “conscious sedation (CS)” or “monitored anesthesia care (MAC)” with moderate sedation could be the technique of choice in such a complex medical scenario, the “asleep-awake-asleep (AAA) technique” with GA as one of the components may not be helpful. Moreover, Shah et al discuss a tailored approach to sedation and analgesia, emphasizing the need for a comprehensive understanding and management of the unique pathophysiological aspects of PAVMs. It highlights the importance of meticulous preoperative planning, including hydration, antibiotic prophylaxis, and strategies to mitigate the risks associated with GA. This case study serves as a crucial reminder of the importance of individualized anesthetic planning and the anesthesiologist's role in managing complex cases, ensuring patient safety, and achieving optimal surgical outcomes.
The article “Awake aneurysm clipping: challenges conquered” by Kaur and colleagues[5] focuses on the challenges and strategies involved in conducting an awake craniotomy for aneurysmal clipping. The article underscores the complexities of maintaining an adequate level of sedation that allows for patient interaction and immediate neurological assessment while preventing pain and anxiety. The use of multimodal analgesia, vigilant monitoring of neurological status, and employing a supportive, patient-centered approach are discussed as key strategies for managing these high-risk procedures. The narrative highlights the critical role of anesthesiologists in navigating the delicate balance between sedation and patient engagement, illustrating the demanding yet rewarding nature of awake craniotomy in intracranial aneurysmal surgery.
Several key themes emerge from the synthesis of these articles. First, the anesthetic management of awake craniotomies is highly nuanced, requiring a profound understanding of pharmacological agents and their effects on neurological function.[6] Anesthesiologists must be skilled at tailoring their approach to the individual patient, considering the specific surgical requirements and the patient's medical and psychological profile. Second, the management of complex neurosurgical conditions presents unique challenges, demanding not only technical expertise but also a comprehensive understanding of the underlying pathophysiology and a proactive, patient-centered approach to care.[7] Additionally, the importance of multidisciplinary collaboration is paramount, involving neurosurgeons, anesthesiologists, neurophysiologists, and nursing staff in the planning and execution of awake craniotomies.
To summarize, awake craniotomy is a dynamic and evolving field that requires anesthesiologists to remain at the forefront of innovation and education. By embracing a nuanced, evidence-based approach to anesthetic management, anesthesiologists can significantly contribute to the success of this procedure, enhancing patient safety, optimizing neurological outcomes, and expanding the boundaries of neurosurgery. Future directions for awake craniotomy involve exploring more about patient safety, improving surgical outcomes, and investigating novel anesthetic agents and techniques. As we continue to navigate the complexities of awake craniotomy, our commitment to innovation, patient-centered care, and continuous learning will guide us toward ever-higher standards of care in neuroanesthesia, reflecting the relentless pursuit of excellence in patient care and the critical role of anesthesiology in achieving this goal. As technology advances and our understanding deepens, awake craniotomy will continue to evolve, offering new possibilities and hope for patients requiring complex neurosurgical interventions.
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Conflict of Interest
None declared.
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References
- 1 Bonhomme V, Franssen C, Hans P. Awake craniotomy. Eur J Anaesthesiol 2009; 26 (11) 906-912
- 2 Costello TG, Cormack JR. Anaesthesia for awake craniotomy: a modern approach. J Clin Neurosci 2004; 11 (01) 16-19
- 3 Thakkar K, Mariappan R, Prabhu K, Yadav B, Singh G. Comparison of monitored anesthesia care with propofol versus dexmedetomidine for awake craniotomy: a retrospective study. J Neuroanaesthesiol Crit Care 2023
- 4 Shah S, Shetty A, Mehta D. Awake craniotomy for cerebral abscess with pulmonary arteriovenous malformation: a case report. J Neuroanaesthesiol Crit Care 2023
- 5 Kaur K, Thappa P, Luthra A, Chauhan R, Panda NB, Sahoo SK. Awake aneurysm clipping: challenges conquered. J Neuroanaesthesiol Crit Care 2023
- 6 Stevanovic A, Rossaint R, Veldeman M, Bilotta F, Coburn M. Anaesthesia management for awake craniotomy: systematic review and meta-analysis. PLoS One 2016; 11 (05) e0156448
- 7 Brown T, Shah AH, Bregy A. et al. Awake craniotomy for brain tumor resection: the rule rather than the exception?. J Neurosurg Anesthesiol 2013; 25 (03) 240-247
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Publication History
Article published online:
23 February 2024
© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)
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References
- 1 Bonhomme V, Franssen C, Hans P. Awake craniotomy. Eur J Anaesthesiol 2009; 26 (11) 906-912
- 2 Costello TG, Cormack JR. Anaesthesia for awake craniotomy: a modern approach. J Clin Neurosci 2004; 11 (01) 16-19
- 3 Thakkar K, Mariappan R, Prabhu K, Yadav B, Singh G. Comparison of monitored anesthesia care with propofol versus dexmedetomidine for awake craniotomy: a retrospective study. J Neuroanaesthesiol Crit Care 2023
- 4 Shah S, Shetty A, Mehta D. Awake craniotomy for cerebral abscess with pulmonary arteriovenous malformation: a case report. J Neuroanaesthesiol Crit Care 2023
- 5 Kaur K, Thappa P, Luthra A, Chauhan R, Panda NB, Sahoo SK. Awake aneurysm clipping: challenges conquered. J Neuroanaesthesiol Crit Care 2023
- 6 Stevanovic A, Rossaint R, Veldeman M, Bilotta F, Coburn M. Anaesthesia management for awake craniotomy: systematic review and meta-analysis. PLoS One 2016; 11 (05) e0156448
- 7 Brown T, Shah AH, Bregy A. et al. Awake craniotomy for brain tumor resection: the rule rather than the exception?. J Neurosurg Anesthesiol 2013; 25 (03) 240-247