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Table 3: Comparison of mean symptom duration and VAS score before the procedure in terms of pain relief at the 2 week follow-up
Total No. of Patients Pain Relief
Excellent Good Fair Poor
No. of patients 229 45 48 45 91
Mean symptom duration (mo) 6.3 3.04 5.96 6.58 7.96
Mean VAS score before the procedure 6.48 6.37 6.28 6.83 6.41
Note:—VAS indicates visual analog scale.