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Biomedical subjects

V N Vavilov

Publications and source records attributed to V N Vavilov.

At least 19 recordsLinked to original sources
PubMed2004

[On the anatomical terms used for description of brain arteries and discrepancy between them and anatomical nomenclature].

The following terms are used in Russian literature to designate arteries, which carry blood into the brain: brachiocephalic arteries, aortic arch branches, main cerebral arteries (arteries of the head), extra- and intracranial cerebral arteries, precerebral arteries. All terms either have substantial drawbacks or conflict with the adopted anatomical terminology. These discrepancies become far more significant in view of publication of "Terminologia Anatomica" (New York, 1998). We suggest to discuss the possibility to use universal terminology for the designation of the system of the arteries, supplying the brain. We propose to designate truncus brachiocephalicus, common carotid and subclavian arteries, internal carotid and vertebral arteries with their branches including arterial network on the brain surface by the term "the conducting arteries", whereas small branches, which pierce the brain matter are to be named "the penetrating arteries" (T.M. Sundt et al., 1976). Considering the Greek word "encephalon", which means "the brain", all the arteries of the brain could be designated as encephalic, while conducting arteries--as preencephalic, and intracerebral (penetrating) arteries--as intraencephalic.

Brain↗
PubMed1998

[A method of phalloplasty using a non-free skin-fat flap from the thigh].

The authors propose a method of phalloplasty with a full-thickness flap on the vasculo-nervous pedicle taken from the femur. The method of raising such a flap and the technique of its displacement to the area of the pubic articulation if described. This method of phalloplasty was used in 10 patients aged 19-36 years. In all of them full taking of the transplant was noted. Good cosmetic and functional results were obtained.

Adult↗
PubMed1996

[The surgical treatment of aneurysms of the abdominal aorta].

Based on an experience with treatment of 107 patients with aneurysms of the abdominal aorta subjected to planned or urgent operations the authors discuss the problems of the clinical course, diagnosis, indications for operative treatment, the technique of operative interventions and their results. In planned operations lethality was 4.1%, in ruptures of the aneurysm-64.2%. One year after the operations 90% of the patients were practically healthy, 5 years later they were 70%.

Aged↗
PubMed1987

[A Soviet-made blood vessel bioprosthesis and its clinical use].

The authors describe their experience with the using of Soviet made bioprosthesis of blood vessels made of skeleted conserved vein of the human umbilical vein showing its high effectiveness and positive properties such as: high thromboresistent properties of the bioprosthesis and its firmness, the absence of reaction of rejection and pronounced inflammatory reactions of the recipient organism to bioprosthesis, high possibility of the bioprosthesis in remote periods, its fitness for plasty of average diameter arteries.

Adult↗
PubMed1984

[Hemodynamics of the lower extremities following lumbar sympathectomy].

Peripheral blood circulation was studied in 72 patients (85 extremities) with obliterative arteriosclerosis of lower extremities within 7 days following lumbar sympathectomy with the help of occlusive plethysmography. The outcomes of lumbar sympathectomy were shown to be independent of the level of lesions of lower extremity arteries, changes in plethysmography indices depending on their initial level and stage of the disease.

Adult↗
PubMed1983

[Restorative operations using microsurgical technics in abruption of large segments of the upper limb].

Ten observations of replantations of the hand, forearm and shoulder after their traumatic abjunction are analyzed. Seven patients had complete reimplantation. Failures resulted from prolonged anoxia of the abjuncted segment or from extensive lesions to soft tissues of the replant. Success of the operation was mostly related with the quality of the vascular sutures (microtechnique), careful primary treatment of the wound and organization of the urgent surgical aid.

Adult↗
PubMed1983

[Long-term results of emergency microsurgery operations in severe injuries and amputations of large segments of the upper limbs].

Under study were blood circulation, innervation and functions of distal parts of upper arms in 114 patients operated upon for traumatic abjunction and severe injuries of large segments. The state of blood circulation was found to be satisfactory within the terms of from 4 to 27 months. The degree of the extremity reinnervation was dependent on the level of the nerve injury and when observed longer than a year it was found to repair up to the level of hypesthesia without hyperpathia. The functional results of such operations were noted to depend on the character of trauma, the completeness and quality of repair of damaged nerves and tendons, on adequacy of rehabilitation therapy in the postoperative period.

Adult↗
PubMed1983

[Use of the microsurgical technics in the treatment of occlusive diseases of the main arteries of the lower limbs].

Microsurgical techniques permit high-quality intervascular anastomosis in small and mid-caliber arterial surgery of lower extremities. This improves immediate outcomes in surgical patients with obliterating atherosclerosis of lower extremities. Microsurgical femoropopliteal autovenous shunting in patients with ischemia of the third or fourth degree (by Fontana) reduced the rate of shunt thrombosis from 37 to 27%. Microsurgical autovenoplasty of the deep femoral artery showed actually no thromboses at follow-up.

Adult↗
PubMed1980

[Emergency microsurgery in traumatic amputation of the fingers and hand].

The article is concerned with the results of the first experience of the work of a new Leningrad Center of microsurgery for the replantation of fingers and hand after the traumatic amputation. The operations were performed urgently within the first hours after traumas. The replantation included a microsurgical step recovering the integrity of the vessels and nerves by means of an operation microscope, special instruments and suture material. In eleven patients 22 operations were fulfilled with good near and late results. The results of surgery were found to depend on the damage character and time of admission of the patients to the hospital.

Adult↗
PubMed1980

[Intestinal ischemia after aortoiliac reconstructions].

The analysis of lethal outcomes and complications following the reconstruction of the abdominal aorta and iliac arteries has shown that in the small and large intestines of 6 patients (12,6%) among 225 operated upon there were deep morphological alterations of the ulcero-necrotic type. The main cause of intestinal ischemia and severe enteropareses following the reconstructive operations on the aorto-iliac segment was found to be a continuous hypotonia and reduced capacitance blood flow in the system of celio-mesenterial arteries. Prophylactic measures against hypotensive reactions during the operations and in the postoperative period in combination with peridural blockade, decompression of the intestine, administration of sorbitol and other drugs are of great significance in the prevention of intestinal ischemia, severe postoperative gastro-enteropareses following reconstructive operations on the abdominal aorta and iliac arteries.

Aorta, Abdominal↗
PubMed1980

[Blood circulation in the lower extremities after reconstructive operations on the vessels in arteriosclerosis obliterans of the aorta and major arteries].

Circulation in the lower limbs of 22 patients with obliterating arteriosclerosis of the aorta and main arteries was studied during operation by means of occlusion plethysmography and from the results of manometry and flow measurement. All patients underwent reconstructive operations on the vessels. Ejection of blood into the limb with a large volume of the contributing vascular bed was encountered immediately and in the first few days after the operation; the specific blood flow (ml/min/100 cm3 tissue) sharply increased in the limb most affected by ischemia. Circulation in the lower limbs was gradually normalized by the 5 th--7 th day. Some indices obtained during the study are important for understanding the course of the postoperative period in patients with the pathological condition discussed.

Adult↗
PubMed1979

[Prolonged peripheral arteriovenous perfusion with a membrane oxygenator].

The authors have developed the optimal method of performing prolonged veno-arterial perfusion and studied its influence on the animal organism. In 22 experiments a membrane oxygenator on the national film "Sigma" was used. It has been established that for successful performing of prolonged veno-arterial perfusion it is necessary to strictly maintain the circulating blood volume and take measures to prevent disorders in the microcirculation. The blood trauma in the membrane oxygenator with the "Sigma" film is inimal.

Animals↗
PubMed1977

[Method of increasing the effectiveness of veno-arterial perfusion].

Under study was the efficacy of heart unloading in different variants of asynchronous peripheral veno-arterial perfusion (VAP). In 12 experiments VAP was accomplished in association with the left ventricle decompression. Due to the latter, complete or nearly complete exsanguination of the left ventricle was gained in 11 experiments. In fibrillation of caridac ventricles no lung edema was noted in these cases. The elaborated technic was successfully employed twice in animals being in the state of "cardiogenic shock", induced by myocardiac infarction lasting for a day.

Animals↗