A M MASTER’s research while affiliated with Mount Sinai Hospital and other places

... Assessment of cardiovascular response during exercise and recovery is an important tool to assess individual susceptibility to unfavourable cardiac events. Classical exercise testing primarily monitors ST segment changes in the ECG [8,9]. However, the QT interval, a measure of ventricular depolarisation and repolarisation, may be more informative [10]. ...

Reference:

Effect of Isometric Exercise on QTc Interval

... I USA hävdade forskaren Masters m.fl. att det inte fanns några säkra belägg för ökningen hade samband med det moderna livets påfrestningar i form av stress eller nya vanor ifråga om mat, tobak och alkohol [4]. Eftersom dödligheten i infektionssjukdom minskat, främst tbc, ökade medellivslängden och därmed också risken för hjärtinfarkt. ...

Reference:

Västerbottens hälsoundersökningar - en 40-årig befolkningsintervention: ”Västerbottningar är också människor, fast inte lika länge”

... Several studies have been published which noted that low QRS voltage and leftward deviation of the T and P axes are most frequent signs. [1][2][3][4][5] However, the considerable controversy and disagreement in the literature prompted us to analyze the electrocardiographic changes present in a large number of obese patients before and after significant weight reduction while being followed in an obesity clinic on a semi-starvation diet. 6 ...

Reference:

The electrocardiogram in obesity

... Oneset of measurement took approximately 2 minutes. In a previous study using Master's single two-step exercise, the heart rate was increased by !10 beats/min in 14% of the normal subjects at 5 min after the exercisecompared to that before exercise [24]. Another study using more intensive dynamic exercise reported that choroidal blood flow and choroidal blood velocity was stabilized within 10 minutes after the exercise [6] . ...

Reference:

Effects of Exercise on the Structure and Circulation of Choroid in Normal Eyes

... The autopsy protocols were reviewed and the severity of benign nephrosclerosis, when it was present, was graded arbitrarily as 1, 2, and 3, on the basis of kidney weights and the degree of microscopic arteriolar hyalinization and necrosis. Among the 500 autopsied patients, there were 50 men (41 white, 9 Negro) and 42 women (32 white, 10 Negro) with nephrosclerosis of 2 or 3 severity. ...

Reference:

Autopsy Studies in Atherosclerosis: III. Distribution and Severity of Atherosclerosis in the Presence of Obesity, Hypertension, Nephrosclerosis, and Rheumatic Heart Disease

... Excessive diagnostic procedures, on the other hand, incur costs and utilize the time of healthcare personnel [7]. Chest pain in 40% of patients [8] or more [9,10] indicates the presence of noncardiac causes [11][12][13][14][15], primarily reflecting gastro-oesophageal disorders, psychological distress/anxiety and respiratory disease. ...

Reference:

Hospitalised patients with unexplained chest pain: incidence and prognosis

... WHR was added in a second model and results are given with and without adjustment for WHR. Body height was added as a covariate for the analysis of blood pressure since it is known to positively influence blood pressure in humans [18, 19]. Statistical interactions between sex and SGA/AGA status were tested in all these models. ...

Reference:

Dynamic change in adiposity from fetal to postnatal life is involved in the metabolic syndrome associated with reduced fetal growth

... In 79,757 apparently healthy volunteers aged between 20 and 106 years. Lasser and Master (1959) found that mean resting systolic blood pressure in women increased gradually from 116 mmHg at the age of 20 years to 158 mmHg at age 75, before decreasing to 149 mmHg at age 100. There was also a gradual increase in resting systolic blood pressure in men from 123 mmHg at age 20 to a peak of 145 mmHg five years earlier than in women, with no further change between the ages of 70 and 100. ...

Reference:

Effects of age and sex steroids on the circulation in women

... To evaluate asymptomatic myocardial ischemia, a double (3 min) 2-step exercise ECG test was performed as described by Master and Rosenfeld. 13 A resting standard 12-lead ECG was taken in the supine position just before exercise. A walking pace was maintained by asking the patient to follow the clicks of a metronome adjusted to the rate recommended by Master and Rosenfeld. ...

Reference:

Effects of Pravastatin on Exercise Electrocardiography Test Performance and Cardiovascular Mortality and Morbidity in Patients With Hypercholesterolemia

... Also, on the basis of limited data, patients with coronary insufficiency or coronary failure (that group of patients who fall between subjects with stable angina and overt infarction) are said to benefit from anticoagulant therapy3-5 18 although this position is not universally accepted. 26 As with long-term therapy following acute myocardial infarction, no statistical evidence of harm from the treatment of patients with angina pectoris or coronary insufficiency has been reported. Accordingly, the physician may be influenced by the duration of symptoms, the patient's age, or the family history of coronary disease in attempting to reach a decision on therapy in these individuals. ...

Reference:

Anticoagulant Therapy in Coronary Artery Disease