ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID

ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID

ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID

ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID

摘要:

Two hundred cases were selected from medicolegal autopsies for a study of the relationship of serum cholesterol to the amount and severity of atherosclerosis in the aorta and the coronary and cerebral arteries. A preliminary study of cholesterol before and after death in 20 cases showed a close parallel between the two when the sample of blood was taken within 16 hours of death.The mean serum total cholesterol showed a tendency to rise from 122 mg. per cent ±16 in the first decade to 176 mg. per cent ±28 in the fifth decade. A statistically significant correlation was found between serum total cholesterol levels and age up to the fifth decade.No correlation could be observed between the serum cholesterol level and the amount and severity of atherosclerosis in the arteries. When all the cases were divided into arbitrary groups according to the amount of atherosclerosis, a rise in the levels of mean serum total cholesterol was seen in the first six successive groups of aortic atherosclerosis. But when age was excluded from the correlation between atherosclerosis and serum cholesterol, the interrelationship between the two was found to be statistically insignificant.

ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID

摘要:

Electrocardiograms of 164 Bantu patients with head trauma were recorded and studied with reference to two control groups, 100 Bantu patients with trauma to limbs and 164 healthy Bantu subjects.The electrocardiographic abnormalities that occurred more commonly in the head injury group than in either of the control groups were an increased Q-Tcinterval and an increased voltage of the P wave.Both traumatic groups differed from the healthy controls in showing a higher incidence of increased QRS voltage and raised S-T segments in precordial leads, inverted T waves in precordial leads V4to V6, U waves of more than 1 mm. in height, sinus arrhythmia with fixed pacemaker, and sinus arrhythmia with pacemaker wandering in the sinoatrial node.The number of electrocardiographic abnormalities increased as the level of consciousness deteriorated.

ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID

ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID

摘要:

The 5-year prognosis of 202 railway operating employees returning to full-time work after their initial myocardial infarction and the 10-year survival rates of 97 of these men have been described. The 5-year survival rate was 83 per cent and the 10-year survival rate was 57 per cent.Twenty-five per cent of these men died or were totally disabled at the end of 5 years and 50 per cent at the end of 10 years. The cause of death or disability following the initial infarction was largely due to recurrent myocardial infarction.The prognosis for men returning to fulltime activity after the first myocardial infarction is better than that reported for those surviving without consideration for their functional recovery. This better prognosis is not due to freedom from second infarctions but to a decreased incidence of myocardial failure and the ability better to survive and tolerate a second infarction.

ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID

摘要:

The auscultatory and phonocardiographic findings were analyzed in 21 cases of small ventricular septal defect. Eleven patients had identical right ventricular and pulmonary artery systolic pressures, whereas in nine a minimal systolic gradient across the infundibulum of the right ventricle was demonstrated. One half of the patients, with or without an infundibular gradient, had a pansystolic plateau-shaped murmur. Several patients, mostly those with an infundibular gradient, had a distinct diamond-shaped murmur. A few children showed an early systolic decrescendo murmur. Appreciable, even wide splitting of the second sound with inspiratory widening, was demonstrated. It is proposed that a sharp differentation between "ejection" and "regurgitant" systolic murmurs may be difficult under certain circumstances. Furthermore, it is suggested that the definition of an "innocent" or "functional" murmur may depend on the sensitivity of the diagnostic methods used.

ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID

摘要:

Seven hypertensive patients, five with coronary arterial disease and two with normal coronary arteries, with exertional angina pectoris and left ventricular hypertrophy were subjected to exercise in the sitting and supine position.The five patients with coronary arterial disease developed, during exercise in both positions, striking arterial pressure elevation followed by angina pectoris and electrocardiographic changes. When the pressor response to exercise was eliminated by intravenous sodium nitroprusside, these were prevented.In the two patients with normal coronary arteries who had orthostatic and exertional hypotension secondary to antihypertensive treatment, exercise in the sitting position caused intense hypotension followed by angina pectoris and electrocardiographic changes. In contrast, exercise in the supine position, which caused only minimal pressure changes, was not followed by angina pectoris.It is concluded that in hypertensive patients with coronary arterial disease, further elevation of arterial pressure during exercise is an important factor in precipitating angina pectoris by increasing cardiac work. In hypertensive patients with normal coronary arteries and exertional hypotension secondary to antihypertensive treatment, marked lowering of arterial pressure during exercise is a factor of importance in producing angina pectoris, probably by reduction of perfusion pressure and coronary flow relative to the hypertrophied left ventricle.

ISSN:0009-7322    

出版商:OVID    

年代:1961

数据来源: OVID