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Pterygopalatine Fossa Block in Aneurysmal Subarachnoid Hemorrhage

Pterygopalatine Fossa Block in Aneurysmal Subarachnoid Hemorrhage

Status
Completed
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05925478
Enrollment
2
Registered
2023-06-29
Start date
2023-11-06
Completion date
2024-08-20
Last updated
2024-08-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Subarachnoid Hemorrhage, Aneurysmal

Brief summary

Aneurysmal subarachnoid hemorrhage (aSAH) can cause a severe headache (HA) that is famously treatment-resistant. Current pain regimens are too reliant on opioids, which results in long-term opioid dependence and can obfuscate the neurological examination, which is critical to detect vasospasm and delayed cerebral ischemia. This study will gather the initial evidence of whether the pterygopalatine fossa (PPF) regional anesthesia nerve block can treat aSAH-related HA and reduce opioid consumption in patients with aSAH.

Interventions

PROCEDUREPtergyopalatine Fossa Block

Injection of local anesthetic (e.g. Bupivacaine) into the pterygopalatine fossa to treat headache related to aneurysmal subarachnoid hemorrhage

Injection of local anesthetic (e.g. Bupivacaine) into the pterygopalatine fossa to treat headache related to aneurysmal subarachnoid hemorrhage

Sponsors

University of Texas Southwestern Medical Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Aneurysmal subarachnoid hemorrhage with secured aneurysm * Age greater than or equal to 18 years * Able to communicate pain level

Exclusion criteria

* Documented allergy to local anesthetics (e.g. bupivicaine) * Patients with unsecured aneurysms * Patients who are unable to communicate pain level (e.g. sedation/mechanical ventilation/delirium, etc) * Medical treatment for vasospasm including blood pressure/inotropic augmentation * Angiographic treatment for vasospasm within 48 hours

Design outcomes

Primary

MeasureTime frameDescription
Opioid consumption3 days
Pain Rating Scale3 daysScale of 1-10, 1 being lowest possible pain, 10 being highest possible pain

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026