Circulatory response to prenalterol in normal subjects and in patients with primary congestive cardiomyopathy

2009 ◽  
Vol 211 (S659) ◽  
pp. 233-250
Author(s):  
M. D. Guazzi ◽  
Lü Guo Qing ◽  
M. T. Olivari ◽  
C. Fiorentini ◽  
A. Loaldi ◽  
...  
Keyword(s):  
Normal Subjects ◽  
Circulatory Response ◽  
Congestive Cardiomyopathy

Reflex and mechanical circulatory effects of graded Valsalva maneuvers in normal man

1976 ◽  
Vol 40 (3) ◽  
pp. 434-440 ◽  
Author(s):  
P. I. Korner ◽  
A. M. Tonkin ◽  
J. B. Uther
Keyword(s):  
Valsalva Maneuver ◽  
Peripheral Resistance ◽  
Normal Subjects ◽  
Afferent Input ◽  
Right Atrial ◽  
Response Curves ◽  
Circulatory Response ◽  
Circulatory Effects ◽  
Normal Man

In 17 normal subjects we studied the changes evoked by five levels of expiratory pressure (EP) ranging from 2.5 to 30 mmHg in a number of circulatory variables during the last 10 s of a 30-s Valsalva maneuver. Variables studied included mean arterial (MAP) and pulse (PP) pressures; right atrial (RAP) and peripheral vein (PVP) pressures; cardiac output (CO); total peripheral resistance (TPR) and heart rate (HR). EP-circulatory response curves were obtained in each subject a) before autonomic block; b) after cardiac effector block (atropine + propranolol); c) after “total” autonomic block (atropine + propranolol; guanethidine + phentolamine). Mechanical effects were determined from results during “total” autonomic block. They included EP-related rises in RAP and PVP each to about 0.7 mmHg/mmHg applied EP, and falls in CO, MAP, and PP to levels of approximately 50%, 70%, and 80% of resting respectively at EP 30 mmHg, but no changes in TPR and HR. Reflex effects included EP-related rises in HR and in TPR and in MAP, to levels of 160%, 160%, and 115% of resting respectively at EP 30 mmHg. The afferent input profile is probably complex, and the role of the different receptor groups may vary at the different levels of EP.

scholarly journals Echocardiographic Features of Congestive Cardiomyopathy Compared with Normal Subjects and Patients with Coronary Artery Disease

Circulation ◽  
1974 ◽  
Vol 49 (6) ◽  
pp. 1153-1159 ◽  
Author(s):  
BETTY C. CORYA ◽  
HARVEY FEIGENBAUM ◽  
SUSAN RASMUSSEN ◽  
MARY J. BLACK
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Normal Subjects ◽  
Congestive Cardiomyopathy ◽  
Artery Disease

scholarly journals Circulatory response to vasodilator therapy in congestive cardiomyopathy.

Heart ◽  
1976 ◽  
Vol 38 (7) ◽  
pp. 695-700 ◽  
Author(s):  
R M Rossen ◽  
E L Alderman ◽  
D C Harrison
Keyword(s):  
Vasodilator Therapy ◽  
Circulatory Response ◽  
Congestive Cardiomyopathy

scholarly journals Characterization of the Circulatory Response to Maximal Upright Exercise in Normal Subjects and Patients with Heart Disease

Circulation ◽  
1967 ◽  
Vol 35 (6) ◽  
pp. 1049-1062 ◽  
Author(s):  
STEPHEN E. EPSTEIN ◽  
G. DAVID BEISER ◽  
MORRIS STAMPFER ◽  
BRIAN F. ROBINSON ◽  
EUGENE BRAUNWALD
Keyword(s):  
Heart Disease ◽  
Normal Subjects ◽  
Circulatory Response

Auditory Selective Attention in Cerebral-Palsied Individuals

1985 ◽  
Vol 16 (4) ◽  
pp. 260-266 ◽  
Author(s):  
Lee Ann Laraway
Keyword(s):  
Selective Attention ◽  
White Noise ◽  
Normal Subjects ◽  
Auditory Selective Attention ◽  
Normal Individuals ◽  
Significant Difference

The purpose of this study was to determine whether there is a statistically significant difference between the auditory selective attention abilities of normal and cerebral-palsied individuals. Twenty-three cerebral-palsied and 23 normal subjects between the ages of 5 and 21 were asked to repeat a series of 30 items consisting of from 2 to 4 digits in the presence of intermittent white noise. Results of the study indicate that cerebral-palsied individuals perform significantly poorer than normal individuals when the stimulus is accompanied by noise. Noise was not a significant factor in the performance of the normal subjects regardless of age.

The Effect of Stapedectomy on the Loudness of One’s Own Voice

1965 ◽  
Vol 8 (3) ◽  
pp. 223-234 ◽  
Author(s):  
William Melnick
Keyword(s):  
Middle Ear ◽  
Normal Subjects ◽  
Sound Energy ◽  
Loudness Function ◽  
Before And After ◽  
Increased Sensitivity

Five subjects with normal middle ear mechanisms, and otosclerotic patients, before and after stapedectomy, matched the loudness of their voices to the loudness of a 125-cps-sawtooth noise. The results showed loudness matching functions with gradual slopes, less than 1.00, for the normal subjects and the patients prior to stapedectomy. Post-surgically, the loudness function for the patients increased in steepness to considerably more than 1.00. These results are explained, most logically, in terms of increased sensitivity of the altered middle ear to sound energy generated by the listener’s own voice.

Delayed Auditory Feedback with Different Delay Times at Each Ear

1964 ◽  
Vol 7 (4) ◽  
pp. 369-371
Author(s):  
Samuel Fillenbaum
Keyword(s):  
Delay Interval ◽  
Auditory Feedback ◽  
Normal Subjects ◽  
Delayed Auditory Feedback ◽  
Delay Times

Binaurally asynchronous delayed auditory feedback (DAF) was compared with synchronous DAF in 80 normal subjects. Asynchronous DAF (0.10 sec difference) did not yield results different from those obtained under synchronous DAF with a 0.20 sec delay interval, an interval characteristically resulting in maximum disruptions in speech.

Object Transformations in the Play of Language-Impaired Children

1988 ◽  
Vol 53 (4) ◽  
pp. 459-466 ◽  
Author(s):  
Brenda Y. Terrell ◽  
Richard G. Schwartz
Keyword(s):  
Normal Subjects ◽  
Play Behavior ◽  
Chronological Age ◽  
Standard Group ◽  
Language Impaired ◽  
Normal Language ◽  
Mean Length Of Utterance ◽  
Impaired Children

The play behavior of 10 language-impaired children was observed. Their performances in play were compared to those of 10 normal-language children matched for chronological age as well as to those of 10 normal-language children matched for mean length of utterance. The children were observed as they played spontaneously with a standard group of toys and as they played with objects that required object transformations for successful play. The chronological age-matched normal subjects showed a trend toward performance of more object transformations in play than either the language-impaired or younger normal-language children. Additionally, although object transformations were observed in both segments, all children performed more object transformations with objects than with toys.

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