Evaluation of the changes in middle cerebral artery flow velocity related to different positions of patients during posterior fossa surgery.
American society of anesthesiologists
Cerebellopontine angle
Posterior fossa surgery
Prone position
Supine with head tilt position
Journal
Surgical neurology international
ISSN: 2229-5097
Titre abrégé: Surg Neurol Int
Pays: United States
ID NLM: 101535836
Informations de publication
Date de publication:
2022
2022
Historique:
received:
20
09
2022
accepted:
22
10
2022
entrez:
30
11
2022
pubmed:
1
12
2022
medline:
1
12
2022
Statut:
epublish
Résumé
This is a prospective observational study to evaluate the changes in middle cerebral artery flow velocities and cerebral perfusion pressure in the various positions used for posterior cranial fossa surgery and to correlate these changes with postoperative recovery characteristics and complications. Sixty patients were included in the study - 33 patients with CPA tumors were placed in the supine with head tilt position and the rest 27 with tumors in other locations of posterior fossa were placed in the prone position. The primary aim was to study the changes in middle cerebral artery blood flow velocity related to various positions of the patients used during posterior fossa surgery. The secondary aim was to compare the changes in pulsatility index, resistance index, and effective cerebral perfusion pressure in different position and to correlate these findings with postoperative recovery and the complications associated with these positions. The systolic and mean flow velocities were higher in the supine with head tilt group than the prone group after positioning and post repositioning, but these values were within normal limits, and the changes with positioning from baseline were comparable between the groups. Furthermore, these changes did not affect the effective cerebral perfusion pressure or the outcomes of the patients. The current results do not determine whether the supine with head tilt position is better than the prone position during posterior fossa surgery.
Sections du résumé
Background
UNASSIGNED
This is a prospective observational study to evaluate the changes in middle cerebral artery flow velocities and cerebral perfusion pressure in the various positions used for posterior cranial fossa surgery and to correlate these changes with postoperative recovery characteristics and complications.
Methods
UNASSIGNED
Sixty patients were included in the study - 33 patients with CPA tumors were placed in the supine with head tilt position and the rest 27 with tumors in other locations of posterior fossa were placed in the prone position. The primary aim was to study the changes in middle cerebral artery blood flow velocity related to various positions of the patients used during posterior fossa surgery. The secondary aim was to compare the changes in pulsatility index, resistance index, and effective cerebral perfusion pressure in different position and to correlate these findings with postoperative recovery and the complications associated with these positions.
Results
UNASSIGNED
The systolic and mean flow velocities were higher in the supine with head tilt group than the prone group after positioning and post repositioning, but these values were within normal limits, and the changes with positioning from baseline were comparable between the groups. Furthermore, these changes did not affect the effective cerebral perfusion pressure or the outcomes of the patients.
Conclusion
UNASSIGNED
The current results do not determine whether the supine with head tilt position is better than the prone position during posterior fossa surgery.
Identifiants
pubmed: 36447880
doi: 10.25259/SNI_874_2022
pii: 10.25259/SNI_874_2022
pmc: PMC9699839
doi:
Types de publication
Journal Article
Langues
eng
Pagination
541Informations de copyright
Copyright: © 2022 Surgical Neurology International.
Déclaration de conflit d'intérêts
There are no conflicts of interest.
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