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Table 7 Studies of SPG block for cancer pain

From: Sphenopalatine ganglion: block, radiofrequency ablation and neurostimulation - a systematic review

Head and neck cancer pain
Author Year Medical problems Approach Imaging Medication Number of cases Study design Outcome
Prasanna et al. [58] 1993 Pain from carcinoma of the tongue and floor of the mouth Nasal sinuscope None 0.25% bupivacaine 10 Case series Immediate pain relief
Varghese et al. [25] 2001 Pain due to advanced head and neck cancer Endoscopic needle injection None 6% phenol 22 Case series 17 out of 22 patients had significant pain relief
Varghese el al. [59] 2002 Pain due to advanced head and neck cancer Transnasal through the sphenopalatine foramen None 6% phenol 1 Case report Significant pain relief