Objectives Percutaneous balloon compression (PBC) can be offered to medically refractory patients with trigeminal neuralgia who are unsuitable for microvascular decompression. Its associated with up to 4% risk of anaesthesia dolorosa which increases with duration and severity of compression and is more common with repeat procedures. We audited our outcomes for this procedure over last 7 years.
Design Retrospective audit of prospectively collected data.
Subjects All patients undergoing PBC at our centre.
Methods Theatre and radiology records reviewed to identify patients. Case notes and radiology reviewed for history, diagnosis, details of procedure, immediate symptom relief, complications, further procedures and last follow up. Descriptive, comparative Kaplan Meir analysis undertaken.
Results Total 93 patients (4 b/l), 165 procedures. Average follow up 36 months. 24 patients had MS, 17 patients had atypical pain. All except 4 patients had good immediate pain relief. No patient developed anaesthesia dolorosa, 2 patients had transient diplopia, 1 maxillary hematoma and 1 infection. 56 experienced recurrence, 43 needed further surgical intervention. 25 PBC twice, 11 thrice, 4 four times and 1 five times. Average time to first recurrence=32 months. 85% pain free at 1 year and 70% at 2 years.
Conclusions PBC is an effective procedure. With conservative approach, this procedure can be safely repeated.
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