A first version of recommendations was elaborated using the GRADE method (Grade of Recommendation, Assessment, Development and Evaluation) [ 7, 8].
Grade of evidence II; grade of recommendation C. Steroids are recommended by the WHO for new nerve damage in leprosy [ 72].
Overall, the grade of recommendation for any of these syndrome remains at C. SPG block is not recommended for nicotine addiction due to the negative randomized study.
Main outcome measures: Grade of recommendation for specific management issues.
Grade of recommendation is B for applying SPG radiofrequency ablation to intractable cluster headache.
In summary, the overall grade of recommendation is B for SPG block on trigeminal neuralgia.
The overall grade of recommendation is B for SPG block on cluster headache.
The overall grade of recommendation is C for SPG block on postdural puncture headache.
The overall grade of recommendation is C for any of these painful conditions.
The grade of recommendation for this approach is high, the evidence, however, is low (1C) [1].
With the positive randomized-controlled trial, the grade of recommendation is B for using SPG neurostimulation on cluster headache.
