In anesthesia for ablation for cardiac arrhythmias, abrupt hemodynamic changes or fatal arrhythmias can be seen frequently. Remimazolam is a novel ultra-short acting benzodiazepine that provides good hemodynamic stability compared to conventional anesthetic agents. This study aims to investigate whether remimazolam reduces vasoactive agent use during cryo/radiofrequancy ablation under general anesthesia, compared to desflurane(RCT).

Inclusion Criteria:

• =or > 20 years
• Admission for General anesthesia for RFCA or cryoablation procedure

Exclusion Criteria:

• No severe adverse effect history or hypersensitivity of benzodiazepines or its additives
• Acute alcoholic intoxication state
• Coma or shock state due to other condition than heart problem.
• Acute narrow-angle glaucoma