Definition Irritation of the pons, medulla, or 5th cranial nerve can lead to bradycardia or tachycardia, hypotension or hypertension, and arrhythmia. During brainstem surgery close monitoring of EKG and arterial pressure is necessary. Subspecialty Neuroanesthesia Related Media Keyword history 73%/2008 See Also: Sources Irritation of the pons, medulla, or 5th cranial nerve can lead to […]