[Innervation of the blood vessels of the human lower extremities in occlusive arterial lesions].

In 63 patients suffering from an obliterating thromboangiitis and atherosclerosis the state of the efferent innervation of the shin and foot vessels has been studied. The material has been obtained during reconstructive surgical operations from various segments of the extremities and in the patients suffering from regional ischemic disorders of various degree. Moreover, adrenergic structures of the lumbar sympathetic ganglia have been investigated after sympathectomy performed.

[Interstitial neutron therapy using flexible 252Cf sources].

The authors describe the technique of interstitial neutron therapy using 252Cf flexible sources developed at the clinic of the Research Institute of Medical Radiology, USSR AMS. Altogether 75 patients with head and neck tumors of different site and spread were treated. The characteristics of the 252Cf flexible sources and the neutron radiation dose field distribution are provided.

[Postinjection changes in angiopathy patients].

The results are presented of studying the response of the foot skin blood microcirculatory vessels after injecting 2ml of saline solution of NaCl into the hip. A group of patients with diabetes mellitus aggravated by angiopathy of low extremities was managed with insulin during 4 to 18 years and examined versus insulin-untreated diabetes mellitus patients, persons with low limb obliterating thromboangiitis and healthy volunteers. The studies were carried out, using the "skin window" method, which allows one to investigate not only the capillary function but also the state of other skin microcirculatory units.

[Possibilities of ultrasonic echotomoscanning in the diagnosis of liver abscesses].

The authors analyze results of the ultrasonic echotomoscanning of the liver in 45 patients, 22 of them having abscesses of the liver. This method could successfully diagnose the disease in 20 out of 22 patients prior to operation, which shows its high diagnostic value.

[New instruments for pediatric cardiovascular surgery].

The new instruments well adapt anatomical structures of children. Such features as specific dimensions and configuration, light weight, and easy in operation make them suitable for wide application in pediatric surgery.

[Prognostic significance of the determination of carcinoembryonic antigen in the blood of patients with lung cancer].

Correlation analysis of the results of examination of 86 lung cancer patients treated by surgery and methods other than surgery established an inverse relationship between life-span and carcinoembryonic antigen (CEA) level. An analysis using reagents supplied by CEA-IRE-Sorin Company showed that a CEA level in blood in excess of 10 micrograms/l is associated with the most unfavorable prognosis. The degree and rate of CEA excretion are in direct correlation with life-span and provide the most reliable criterion in evaluating the effectiveness of lung cancer treatment.

[Choice of treatment method in stomach polyps].

107 patients with gastric polyps were examined. A multi-zone aiming biopsy of mucosa was carried out during fibrogastroscopy, after a method developed at the Institute. A morphologic and morphometric examination of bioptates was performed to assess the degree of changes (degree of dysplasia), according to V.

[Effect of delta-sleep-inducing peptide and its analogs on the encephalogram of normal rabbits during sleep deprivation and on learning processes in the rat].

The delta-sleep-inducing peptide and its 10 analogues increased the total amount of slow oscillations in the rabbit EEG and shifted the spectrum towards the long-wave area. When comparing the EEGs of intact and sleep--deprived rats, the effect of delta-peptide was stronger in the latter animals. The learning of rats in U-shaped labyrinth before and after sleep deprivation suggested that delta-peptide improved the learning in sleep-deprived animals.