Clinical trial NCT04331938: Efficacy of Percutaneous SPG Block in Aneurysmal SAH
Official title: The Efficacy of Landmark-guided Percutaneous Sphenopalatine Ganglion Block on Self-reported Headache Pain Secondary to Aneurysmal Subarachnoid Hemorrhage: A Feasibility Study
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: Subarachnoid Hemorrhage
Headache
Keywords: sphenopalatine ganglion block
Lead sponsor: Mayo Clinic
Sponsor class: OTHER
First posted: 2020-04-02
Enrollment: 2
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: Researchers are trying to develop alternative means to help patients with headache pain secondary to aneurysmal subarachnoid hemorrhage (bleeding about the brain).

Detailed description: This study is an open label, feasibility study that will consist of fifteen patients. This study will enroll only patients who have aneurysmal SAH that are secured by endovascular coiling. When a patient notes a severe headache which requires medical intervention on at least day 3 of the hospital admission, they will be asked if they would like to participate in an open label trial to use a bilateral SSPGB in addition to traditional medical management per unit protocol. The risks and benefits of the procedure will be explained to the patient. The patient will then either agree or disagree. If the patient disagrees, they will not be enrolled in the study. If the patient agrees, they will sign an informed consent and will be enrolled. Inclusion and exclusion criteria will be reviewed before enrolling a patient. The patients will first rate their pain from 0-10 on the numeric rating scale (NRS) (10 being the most severe). If their pain is at a level 5 or more and it is not responsive to traditional medical therapies, they will be a candidate for the study. The patients will receive bilateral injections as outlined below (5 mL: 4.5mL of 0.5% bupivacaine and 0.5mL of 10mg/mL dexamethasone on each side for total volume of 10 mL). Thirty minutes later and 24 hours following injection, the patient will rate their pain from 0-10 on the NRS. The description of the procedure is stated below. A success would be considered a drop in their pain score of at least 2.

Adverse effects will also be recorded 30 minutes after the procedure and the following day. Chart review on both provider and nursing notes will be performed on subsequent days to evaluate for adverse effects.

Eligibility criteria: Inclusion Criteria:

* Age 18 and older
* Aneurysmal SAH in anterior/middle cerebral compartment
* Aneurysm must be secured endovascular with coiling
* The patient or patient's surrogate should be able to give informed consent and understand the risks of this study
* Pain NRS ≥ 5/10 in severity

Exclusion Criteria:

* Non aneurysmal, traumatic SAH
* Posterior fossa aneurysm ruptures
* Pregnancy
* Transcranial Doppler velocities suggestive of or approaching vasospasm

Primary outcomes:
measure: Reduction in patient reported pain using a standard numeric rating scale (NRS)
timeFrame: 1 Day
Secondary outcomes:
Other outcomes:
Locations:
city: Rochester
country: United States
facility: Mayo Clinic in Rochester
state: Minnesota
Study officials:
affiliation: Mayo Clinic
name: Narayan Kissoon, MD
role: PRINCIPAL_INVESTIGATOR
References: