Greater occipital nerve (GON) blocks and radiofrequency treatments can be used in refractory ON. Objective To assess the efficacy of ultrasound-guided proximal greater occipital nerve (PGON) continous ...

Before and immediately after the splanchnic nerve block (SNB), all patients were tested for catecholamine levels and N-terminal pro-B-type natriuretic peptide levels, transthoracic echocardiogram, ...