ABSTRACT
Major hemodynamic and electrocardiographic parameters were examined in 47 patients with severe vasorenal hypertension at rest, and in 20 patients after stress exposure. Three (hyper-, eu- and hypokinetic) types of circulation were demonstrated, like the ones seen in essential hypertension. Hemodynamic values at rest were indicative of relative cardiovascular compensation in severe vasorenal hypertension. Stress testing demonstrated that exercise disrupted that compensation. Arterial blood pressure response to physical stress showed no correlation to baseline values of the parameters examined.
Subject(s)
Heart/physiopathology , Hemodynamics , Hypertension, Renovascular/physiopathology , Adolescent , Adult , Cardiac Output , Cardiac Volume , Cardiomegaly/diagnosis , Cardiomegaly/etiology , Electrocardiography , Female , Humans , Hypertension, Renovascular/complications , Male , Middle AgedSubject(s)
Arm/blood supply , Leg/blood supply , Wound Infection/physiopathology , Adolescent , Adult , Aged , Arteries , Child , Humans , Male , Middle Aged , Plethysmography/methods , Regional Blood Flow , VeinsSubject(s)
Heart Rate , Infections/diagnosis , Sepsis/diagnosis , Adult , Aged , Electrocardiography , Humans , Middle Aged , Suppuration/diagnosisABSTRACT
A possibility was studied of applying the deep and infrequent respiration test with an object of increasing the informativeness of the statistical parameters of the ECG sequence interval as applicable to the quantitative evaluation of the functional state of man. Examination of patients with wound infection shown that the deep respiration test makes in possible to assess quantitatively the status of test subjects on the basis of two statistical parameters (the mean value of RR interval of ECG and root-mean-square deviation).
Subject(s)
Arrhythmia, Sinus/physiopathology , Respiration , Wound Infection/physiopathology , HumansSubject(s)
Arteriovenous Malformations/physiopathology , Hemodynamics , Leg/blood supply , Adolescent , Adult , Arteries , Arteriovenous Malformations/surgery , Child , Humans , Plethysmography , Posture , VeinsABSTRACT
Hemodynamics were studied during orthostatic load on a special orthotable in 54 patients with different levels of spinal cord interruption. With the patient in a horizontal and then in a vertical position, the arterial pressure, pulse, volume rate of blood flow in the forearm, and the cardiac output were recorded every minute. The total resistance of the vessels was calculated. Absence of constrictor reactions in the lower half of the trunk was revealed in patients with a high level of spinal cord damage, due to whicorthostatic collapse developed within the first minutes after they had been placed in a vertical posture. The orthostatic stability of such patients may be somewhat improved by producing additional external pressure to the lower part of the trunk (with special suits) and by means of other forms of special training. Patients with the spinal cord damaged at a low level (below the sixth thoracic vertebra) tolerate a 10-minute orthostatic load quite satisfactorily.