Alterations in Systolic Time Intervals in Primary Hypothyroidism as a Consequence of Warming

1983 ◽  
Vol 56 (1) ◽  
pp. 185-188 ◽  
Author(s):  
B. NORTHOVER ◽  
B.P. O'MALLEY ◽  
F.D. ROSENTHAL
Keyword(s):  
Systolic Time Intervals ◽  
Primary Hypothyroidism ◽  
Time Intervals ◽  
Systolic Time

Twice-Weekly Dosing for Thyroxine Replacement in Elderly Patients with Primary Hypothyroidism

1994 ◽  
Vol 22 (5) ◽  
pp. 273-277 ◽  
Author(s):  
J Taylor ◽  
B O Williams ◽  
J Frater ◽  
D J Stott ◽  
J Connell
Keyword(s):  
Thyroid Hormone ◽  
Elderly Patients ◽  
Hormone Replacement ◽  
Systolic Time Intervals ◽  
Serum Levels ◽  
Primary Hypothyroidism ◽  
Time Intervals ◽  
Thyroxine Therapy ◽  
Total Triiodothyronine ◽  
Systolic Time

Seven female patients (mean age 86 years) with proven biochemical primary hypothyroidism were enrolled in a single-blind randomized crossover study, of standard daily versus twice-weekly thyroxine therapy, with each phase of one month's duration. The median daily dose of thyroxine was 100 μg (range 75 – 100 μg). Serum levels of thyroid hormones and thyrotrophin were very similar during twice-weekly thyroxine therapy to those during daily therapy and there were no statistically significant differences between trough and peak serum total triiodothyronine, free thyroxine, or thyrotrophin levels or systolic time intervals during twice-weekly thyroxine. Administration of thyroxine twice-weekly to elderly patients with primary hypothyroidism gives effective biochemical thyroid hormone replacement, with no evidence from the systolic time intervals of tissue thyrotoxicosis at expected peak thyroid hormone concentrations. Supervised twice-weekly thyroxine should be considered in patients with primary hypothyroidism who comply poorly with daily dosing.

Systolic Time Intervals and Hydralazine

CHEST Journal ◽  
1982 ◽  
Vol 81 (5) ◽  
pp. 660 ◽  
Author(s):  
George Louridas ◽  
Demetrios Patakas ◽  
Nicholas Galanis ◽  
Marianna Kakoura ◽  
Costas Stavropoulos
Keyword(s):  
Systolic Time Intervals ◽  
Time Intervals ◽  
Systolic Time

Circulating Catecholamines and Systolic Time Intervals in Labile and Sustained Hypertension

1978 ◽  
Vol 55 (s4) ◽  
pp. 65s-68s ◽  
Author(s):  
D. Cousineau ◽  
J. de Champlain ◽  
L. Lapointe
Keyword(s):  
Heart Rate ◽  
Essential Hypertension ◽  
Myocardial Contractility ◽  
Systolic Time Intervals ◽  
Normal Range ◽  
Time Intervals ◽  
Hypertensive Patients ◽  
Sustained Hypertension ◽  
Systolic Time ◽  
Hypotensive Response

1. Average supine circulating total catecholamine concentrations were found to be higher than the normal range in about 50% of patients with labile hypertension and in about 30% of patients with sustained essential hypertension. 2. These higher resting concentrations were mainly due to an increase in adrenaline in labile hypertension and to an increase in noradrenaline in sustained hypertension. 3. Patients with elevated catecholamine concentrations were also characterized by a higher heart rate, by an increased myocardial contractility and by greater hypotensive response after treatment with β-adrenoreceptor blocking agents. 4. These studies suggest the existence of subgroups of hypertensive patients with increased sympathetic tone.

scholarly journals Reliability of systolic time intervals in diagnosis of transposition of great arteries in newborn.

Heart ◽  
1981 ◽  
Vol 46 (1) ◽  
pp. 74-79 ◽  
Author(s):  
G G Sandor ◽  
M W Patterson ◽  
M Tipple ◽  
D J Vince
Keyword(s):  
Systolic Time Intervals ◽  
Time Intervals ◽  
Transposition Of Great Arteries ◽  
Systolic Time

scholarly journals Alteration of Systolic Time Intervals in Right Ventricular Failure

Circulation ◽  
1974 ◽  
Vol 50 (2) ◽  
pp. 317-323 ◽  
Author(s):  
JOSEPH S. ALPERT ◽  
FRANK D. RICKMAN ◽  
JOHN P. HOWE ◽  
LEWIS DEXTER ◽  
JAMES E. DALEN
Keyword(s):  
Right Ventricular ◽  
Systolic Time Intervals ◽  
Right Ventricular Failure ◽  
Ventricular Failure ◽  
Time Intervals ◽  
Systolic Time
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