“…A number of authors have commented on this cardiovascular lability [10, 11, 12, 15, 16, 23, 24, 26-30, 32, 42]. The tachycardia can be accompanied by arryhthmias [29,30,38]. Exaggerated cardiovascular responses occur to common stimuli like endotracheal suction and are superimposed on spontaneous changes [12,38].…”