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Biomedical subjects

A V Morozov

Publications and source records attributed to A V Morozov.

At least 19 recordsLinked to original sources
PubMed2003

[Surgical treatment of acquired defects and ruptures of interventricular septum].

Surgical repair of posttraumatic ventricular septal defects, aortic-right ventricular fistulas and postinfarction ruptures of interventricular septum was carried out in 15 patients aged 18-75 years. Methods of radical correction included suturing, plastic repair with synthetic and autopericardial patches, and amputation of cardiac apex. Procedures were performed 14 days - 12 months after myocardial infarction and 1-12 months after penetrating knife wounds of the chest and the heart. Duration of follow-up was from 1 month to 9.5 years. There were no cases of defect recanalization and deaths.

Adolescent↗
PubMed1989

[Urinary enzymes induced in rats by intensive physical loading and the effect of the antioxidant potassium fenozan].

The rats subjected to repeated heavy exercises (swimming with the load equal to 10% of body weight) had an increased activity of gamma-glutamyl transpeptidase in the urine. Both the percentage of the rats with hyperenzymuria and the level of enzyme were the highest after the fifth swimming. Water-soluble antioxidant (potassium fenozan) administered intraperitoneally 30 minutes before the swimming abolished the increase of enzymuria and maintained the enzyme activity to the normal level.

Adaptation, Physiological↗
PubMed1983

[Effect of beta-adrenoblockaders on the smooth muscles of the trachea and bronchi].

It has been shown in experiments on anesthetized guinea-pigs that (+/-) and (+) propranolol produced a dose-dependent increase in the resistance of the air ways. Meanwhile oxprenolol, trimepranol and atenolol had a poor bronchoconstrictor effect, and labetalol evoked no changes in the tone of the bronchi. On an isolated trachea of the guinea-pig both forms of propranolol, as well as trimepranol and oxprenolol produced contractions, atenolol did not cause any changes in the tone of the smooth muscles, while labetalol made the smooth muscles relax. It has been also demonstrated on an isolated trachea that pretreatment with atropine, diphenhydramine, and diethylamide of lysergic acid did not lead to any noticeable changes in the bronchoconstrictive action of propranolol. At the same time verapamil and Ca2+-free Krebs solution reversed the propranolol effect.

Adrenergic beta-Antagonists↗
PubMed1978

Essential renal haemorrhages.

On the basis of the conception of renal hypertension, worked out by the authors, the new interpretation of the cause of 'essential' renal haemorrhages is discussed. Special attention is drawn to secondary 'arterial' venous hypertension in the kidney, which happens in cases when there are no obvious reasons for the distortion of the outflow through the renal vein. In a case of renal haematuria, the origin of which is not connected with the distortion of the venous blood outflow from the kidney, it is necessary to bear in mind the relationship between the venous pressure in the kidney and the systemic arterial pressure. In arterial hypertension the contralateral kidney may become the source of haematuria. The rarity of isolating a calycovenous canal as a separate definite cause is discussed.

Angiography↗
PubMedDate not supplied

[Orthotopic reconstruction of urinary bladder by intestinal flaps].

The technique of complete or partial replacement of the urinary bladder (UB) with iliac segment is discussed and principles of creation of small intestinal reservoir are validated. The authors are satisfied with the results of 17 operations for microcystis and to repair UB after radical cysto(prostat)ectomy for UB cancer. Orthotopic reconstruction of the UB is proposed as a new therapeutic standard in UB cancer and microcystis.

Adult↗
PubMedDate not supplied

[Surgical access in interventions on the kidney, adrenal gland and upper and middle third of the ureter].

The paper presents indications for, techniques and feasibility of different approaches--thoracophrenolaparotomy (TPL), vertical median and transverse subcostal laparotomy as well as anterolateral lumbotomy--in various retroperitoneal surgical conditions. TPL approach providing maximal radicality and safety in serious operations is thought basic in operative urology. The authors believe that the rest approaches are variants of abdominal part of TPL performed isolated. Thus, if one of the abdominal approaches meets with technical difficulties and a risk of serious complications, these difficulties are overcome by conversion of the approach to TPL.

Adrenal Glands↗
PubMedDate not supplied

[A direct uretero-enteroanastomosis: a return to the past?].

The authors analyse their experience with ureter implantations into a small intestinal retaining reservoir--both direct and antireflux. From 1994 to 2004 orthotopic replacement of the urinary bladder (UB) with an ileal segment was performed in 62 patients (59 males, 3 females) for UB cancer (n = 55), microcystis (posttraumatic, radiation-induced, tuberculous) (n = 7). Orthotopic replacement of the UB was made according to VIP (vesica ileale Padovano) technique with creation of antireflux uretero-enteroanastomoses by Le Duc (group 1, 43 patients, 82 anastomoses) and Hautmann technique in modification of Lippert-Theodorescu (group 2, 14 patients, 28 direct uretero-enteroanastomoses). A direct uretero-enteroanastomosis was performed by Nesbit and Bricker technique. Five patients were withdrawn from the final analysis: 3 of them died early after the surgery because of complications, 2 patients died due to progression within 3 and 4 months after the operation. A total length of the ileac segment used for UB repair in both groups was 60 cm. Upper urinary tracts (UUT) and kidneys after the operation were assessed by the results of ultrasonic investigation of the caliceropelvic system, kidneys, UB, residual urine, serum creatinine, excretory urography, spiral CT (on demand), etc., after recovery of miction (3-4 weeks after operation), 3 and 6 (+cystography) after the operation, 12 months after the operation and annually. Comparison of the results of direct and antireflux anastomoses suggests a conclusion that a high rate of strictures due to antireflux anastomoses provoking UUT and renal dysfunction makes their benefit doubtful. Antireflux bypass ureteral surgery with neocystis of low pressure seems unjustified. In creation of capable uroreservoir of low pressure a direct implantation of the ureter into it is simple to do and less risky in respect to development of anastomotic stricture and damage to the renal function.

Adult↗