To evaluate the clinical effectiveness of ultrasound-guided BoNT-A injection in patients with postoperative First Bite Syndrome (FBS) and to introduce a symptom-guided injection strategy termed the 'Follow-the-Pain' (FTP) technique based on patient-reported outcomes.
Approach:
Study Design: Retrospective case series of patients diagnosed with FBS following head and neck surgery treated with BoNT-A at the University of Padua.
Inclusion Criteria: Patients with clinical diagnosis of FBS, history of relevant head and neck surgery, and persistent symptoms for at least 3 months postoperatively.
Exclusion Criteria: Patients with alternative causes of facial pain, such as trigeminal neuralgia or active infections.
Key Findings:
FBS is characterized by unilateral parotid pain triggered by the first bite of a meal.
In this study, BoNT-A injections resulted in a statistically significant reduction in first-bite pain intensity as measured by patient-reported outcomes.
The proposed mechanisms of action for BoNT-A include inhibition of acetylcholine release and modulation of peripheral nociceptive pathways.
Interpretation:
The study highlights the variability in injection techniques and dosing strategies for BoNT-A in managing FBS, indicating a need for standardized protocols.
Limitations:
The study lacks a control group, which limits the ability to draw definitive conclusions about the efficacy of BoNT-A.
There is no established protocol for escalating treatment in patients who do not respond to initial BoNT-A injections.
Conclusion:
The study aims to provide a systematic approach to BoNT-A injection for FBS, potentially improving management strategies based on symptom localization.
These 10 states have paid family or medical leave programs and health, wellness, peer support, or monitoring resources available to physicians or other health professionals.
