Assessment of myocardial stress from early ambulatory activities following XXXX .

@entity1 @entity662 @entity1353 @entity3362 @entity1188 @entity1296 @entity583 @entity551
Little is known of the magnitude of the stress imposed on the heart by ambulatory activities following @entity1188 . Heart rate, blood pressure, and rhythm provide simple and important estimates of these potential stresses. We therefore measured these variables in 32 @entity1 during sitting, standing, and walking in the first two days following @entity583 . Ambulatory activities caused only a small increase in heart rate, with a maximum increase of 9 beats/minute during walking. The blood pressure was either unchanged or decreased during activity. In six other @entity1 , we also measured central hemodynamics during the same activities. The wedge pressure fell with sitting and standing and remained low after walking. All activities were well tolerated. The major problem was @entity551 ; this was associated with @entity662 in one @entity1 , @entity1296 in four and @entity1353 in two. Most of the @entity1 with @entity551 were taking @entity3362 . In conclusion, mild ambulatory activities produce little stress for the myocardium and can be permitted in the first few days following @entity1188 as long as blood pressure is measured.
