The cause of essential hypotension

The cause of essential hypotension

after the R-wave, acting by displacing the retrograde conduction. Ueglutition, fowed direct and retrqgrade conductivity. ectopic nodal focus and by d...

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after the R-wave, acting by displacing the retrograde conduction. Ueglutition, fowed direct and retrqgrade conductivity.

ectopic nodal focus and by diminishing respiration or csereise diminished both

Dame& Marie Ii., Dawson, Percy M., Mathis, Dorothy, Cardiovascular Reactions in Athletic and Nonathletic Assn., 1926, clxxxvi, 1420.

and Murray, Margaret: Girls. Jour. Am. Ned.

Two hundred high school girls mere observed and were divided into athletic snd nonathletic groups. The cardiovascular reactions of these groups were compared b,v the Schneider and Crampton tests for cardiovascular efficiency. The athletic girl dilfcrs but little from her nonathletic sister, as shown by the increase of pulse prow sure on standing, the rise of diastolic pressure under like circumstances, the rise in systolic pressure and thr: fall in diastolic pressure found after exercise and the values of pulse product whether lying, standing or after exercise. On the other hand the resting pulse is slower, the pulse pressure larger in the athletic group. On rising from recumbency the pulse quickens less, it is less after exercise and it returns mow The Schneider rating is not, less than 6 and the Crampton pw promptly to normal. ccntage is not less than 55 in the athletic group.

Alvarez, Walter C., and Zimmermann, Arnold: Blood Pressure in Women as Influenced by the Sexual Organs. Srch. lnt. Med., 1926, xxxvii, 507. The office records of 1,230 women entirely from the upper and middle classes form the basis of this study. The methods of analysis and the results of examina The results arc expressed as follows: tion are outlined by the authors. The average pressure for all ages in women who seem to be sexually normal is The increase by decades is about 10 mm. for each period. 1X mm. of mercurv “. Wdl proportioned women have systolic pressures that average 10 mm. higher thtn~ than in the -rvcll those of the thin and pressures in the stout average I? mm. higher proportioned. The sexually abnormal have pressures that average considerably higher. As the sexually abnormal tend to get married a little late, they find that single women have Jjrcssures averaging a little higher than those of the married women. fibroids of the uterus, thy A masculine distribution of body hair, sex anesthesia, Joid disease or pelvic conditions requiring ovariectomy and hysterectomy are associAbnormal menstruation, early menopause and ated with high average pressures. pregnancy have no demonstrable effect. Marked hypertension was f’ound in a few girls who seemed but in these eases it was not of the primary type but was forms of nephritis.

Mallory,

William

J.: Splanchnic

Dyspepsia.

Am.

Jour.

to be normal sexually. associated with sevwe

M(?d.

SC., 1926,

clsai,

50-t.

The author draws attention to a syndrome occurring in asthenic patients and I’P fcrred to by them as “indigestion. ” These symptoms depend not upon changes in the gastrointestinal tract but to a disorder trl’ the &culation. The real character is indicated by rasomotor disturbance, imbalance of sympathetic nervous system am1 a low Crampton’s index.

A. E.: clsxi, 496.

The Cause of Essential

The (1)

cardiovascular of the aorta

Fossier,

following

The arch

Hypotension.

characteristics is pulled down,

are found its hemicirclc

rim. Jour. Med. SC., 1926, * in

essential hypotension: is small and the size of

the transsrrse diameter ovcr the area of the great blood vessels Yaries from 2.3 to 4.5 cm. (2) The right border of the sup(arior Vena cara is straight or sometimes slightly C011CRVC. (3) The heart is vertical and poorly supported, and its transverse diameter is ~n~all and to,,gether with the great vessels appears drawn out and greatly elonyattvl. Theso chararteristics arc usually found in individuals of asthenic body typo ni with splanchnoptosis. ‘l’hrse individuals can be treated satisfactorily in two ways: [ 1) With the use of an abdominal support, and (2) F3y dev&~ping ah
Barnes, Arlie R.: Cerebral Manifestations Med.

Se., 1026,

elsxi,

of Paroxysmal

Tachycardia.

Am. .Jow.

440.

Cerel~ral manifestations consisting of vertigo, hemianopsia, temporary blindness. fainting, falling with or without loss of consciousness, and epileptiform seizures uccurred in 16 of the 101 casrs of paroxysmal tachycardia that were studied. The l,t’csence of these symptoms requires that paroxysmal tachycardin he considered as a eause. Cerebral anemia seems the most reasonable explanation for these manifestations. At the .L moderately slow pulse rate is essential for normal filling of the ventricles. clscrssively rapid rate the filling and hence the output of the ventricles is below nor1na1. This results in a fall in blood pressure. Whether symptoms indicating cerebral anemia will be present in a given case probably depends upon various factors. Cerebral manifestations occurred most frequently in cases in which the ori,gin of the impulse and its propagation in the heart varied the greatest from normal. The preseuee of these manifestations does not affect the prognosis in attacks. The prognosis depends on the type and degree of the underlying cardiac damage.

Hamman,

Louis:

Hosp.,

1026,

The Symptoms

xxxviii,

A scholarly presentation received recently deserved cussed in this presentation.

Lowenfeld, Med.

Jour.,

Margaret 1926,

of Coronary

Occlusion.

Bull.

Johns Kopkius

373.

F.:

of the clinical features of a common condition which attention. Every feature of the condition is fully R,eference to the literature is complete.

On the Control

of

Heart

Disease in Children.

has dis-

Brit.

i, S17.

The results of the first two years’ work in the cardiac clinic at the Royal Hospital for Sick Children, Glasgow, show that of 93 cases dealt with, 5 recovered, J was improved, 2 developed a cardiac lesion, 1 was disabled and later recovered and 70 remained in status quo; the remainder were not tabulated. The observations of the children indicate that adequate rest in bed during the acute stage with limited exorcise and a gradual return to ordinary conditions of living afford the best chances for recovery. The special clinic. is necrssaly to direct the rare of the children during t,hc qnicsrent stage of the infection.