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Sphenopalatine Ganglion Block with Bupivacaine and Its Effect on Pain After Functional Endoscopic Sinus Surgery

Sphenopalatine Ganglion Block with Bupivacaine and Its Effect on Pain After Functional Endoscopic Sinus Surgery

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06847425
Enrollment
70
Registered
2025-02-26
Start date
2024-03-20
Completion date
2024-08-30
Last updated
2025-03-11

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

Conditions

Anaesthesia

Brief summary

Functional endoscopic sinus surgery (FESS) is a minimally invasive procedure that is used in many inflammatory and infectious sinus diseases. Acute postoperative pain can lead to adverse consequences and good postoperative treatment of pain is essential. There is no agreement on a single protocol to treat pain after endoscopic sinus surgeries, and the usually used analgesics have some side effects that hinder their use. Current evidence is insufficient for routine clinical use of the sphenopalatine ganglion block for Functional endoscopic sinus surgery and the efficacy of sphenopalatine ganglion block for pain control after functional endoscopic sinus surgery remains controversial. This study aims to explore the influence of sphenopalatine ganglion block on pain intensity after functional endoscopic sinus surgery by comparing two groups, a group receiving the block with Bupivacaine injection, versus saline injection in the other group.

Interventions

PROCEDURESphenopalatine Ganglion Block trans oral approach saline injection

The sphenopalatine block will be done by the end of the operation using a trans-oral approach at the greater palatine foramen with the help of a Macintosh blade number 3 for good visualization of the hard and soft palate using a 25 Gauge 1.5 inch needle curved at 45 degrees 25 mm from the tip and filled with 1.5 ml of normal saline. The greater palatine foramen is located posteromedial to the third maxillary molar and anteromedial to the pterygoid hamulus and maxillary tuberosity. The foramen will be identified by digital palpation, and the needle will be inserted until reaching the bone then redirected slightly until the foramen is localized and the needle easily gets in the greater palatine canal. aspiration will be done to ensure that no blood vessels are punctured, and the solution will be injected.

PROCEDURESphenopalatine ganglion block trans oral approach bupivacaine injection

The sphenopalatine block will be done by the end of the operation using a trans-oral approach at the greater palatine foramen with the help of a Macintosh blade number 3 for good visualization of the hard and soft palate using a 25 Gauge 1.5 inch needle curved at 45 degrees 25 mm from the tip and filled with 1.5 ml of bupivacaine. The greater palatine foramen is located posteromedial to the third maxillary molar and anteromedial to the pterygoid hamulus and maxillary tuberosity. The foramen will be identified by digital palpation, and the needle will be inserted until reaching the bone then redirected slightly until the foramen is localized and the needle easily gets in the greater palatine canal. aspiration will be done to ensure that no blood vessels are punctured, and the solution will be injected.

Sponsors

Ain Shams University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Age: 18 years - 80 years. 2. ASA I and ASA II patients. 3. Consented to participate in the research.

Exclusion criteria

1. Pregnant and breastfeeding females. 2. History of allergy to bupivacaine or other local anaesthetics. 3. Patients with uncontrolled hypertension, poorly controlled cardiovascular diseases, or cerebrovascular diseases. 4. Patients with pre-existing neurological conditions. 5. Patients with history of alcohol or drug abuse. 6. Patients on anticoagulation. 7. Occurrence of surgical or anaesthetic complications or change in the anaesthesia protocol. 8. Patients showing sensitivity to Bupivacaine. 9. Patients unable to understand VAS score. 10. Patients refusing to continue participating in the study.

Design outcomes

Primary

MeasureTime frameDescription
Mean Visual Analogue Scale (VAS) pain score over the first 24 hours postoperatively.in the PACU, at 2, 6, 12, and 24 hours after surgeryPostoperative pain will be assessed with a 10-cm scale visual analogue scale (VAS) (0 = no pain, 10 = worst imaginable pain)

Secondary

MeasureTime frameDescription
Total requirements of rescue analgesia24 hours postoperativelyParticipants with VAS score ≥4 at any point of time and complaining of pain will receive fentanyl (25-50 μg) as a rescue analgesia
Time to first rescue analgesia24 hours postoperativelyParticipants with VAS score ≥4 at any point of time and complaining of pain will receive fentanyl (25-50 μg) as a rescue analgesic and the time to the first rescue analgesia will be recorded
Number of patients receiving rescue analgesia24 hours postoperativelyParticipants with VAS score ≥4 at any point of time and complaining of pain will receive fentanyl (25-50 μg) as a rescue analgesic.
Incidence and severity of adverse effects and complications24 hours postoperativelyIncidence and severity of adverse effects and complications such as nausea and vomiting (PONV), headache, visual disturbances, sore throat and swallowing difficulty during the first 24 hours postoperatively

Countries

Egypt

Outcome results

None listed

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