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 |
