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Biomedical subjects

V I Sadovnikov

Publications and source records attributed to V I Sadovnikov.

At least 19 recordsLinked to original sources
PubMed1991

[Ulcerous and non-ulcerous gastrointestinal hemorrhage in children].

The authors analyze the causes of gastrointestinal hemorrhages in 64 children aged 11 months to 15 years. 45 children had ulcerous and 19 non-ulcerous hemorrhages. The presence of gastrointestinal hemorrhages is an absolute indication for emergency esophagogastroduodenoscopy which appeared helpful in visualization of the source of hemorrhage in 60 out of the 64 patients (93.7%). 8 children underwent surgery, whereas in the remaining ones, hemorrhage was arrested by conservative treatment methods.

Adolescent↗
PubMed1991

[Endolymphatic pressure in the evaluation of the status of peripheral lymph flow in the extremities].

The functional capacity of the lymph vessels in their various pathological conditions was determined from 78 studies of the endolymphatic pressure in patients with lymphatic edema of the extremities. Four types of pressure curves were determined according to the maintenance of the contractility of the wall of the lymph vessels. It was found that marked hypertension develops in the lymphatic channel in obstruction of lymph drainage from the extremity. Endolymphatic pressure in hyperplasia of the lymph vessels and blocking of lymph drainage exceeds venous pressure several times, which confirms the competence of operation for the formation of direct lymph-vein anastomoses.

Adult↗
PubMed1990

[Non-invasive evaluation of the greater and collateral circulation in arterial occlusive diseases of the lower extremities].

A method of dosed compressive loads with a simultaneous registration of linear blood flow rate in the femoral artery was used in 32 healthy people and 30 patients with different localization of atherosclerotic process in major vessels with the help of an ultrasound apparatus of Bi-Doppler class and specific blood filling of lower extremities by the method of tetrapolar rheography. It was shown that most sensitive and objective index for the assessment of major and collateral blood circulation is a decrease or absence of the retrograde blood flow.

Aorta, Abdominal↗
PubMed1989

[Tactics of treating children with Meckel's diverticulum].

The results of the treatment of 102 children at the age of from 25 days to 14 years with the Meckel's diverticulum (uncomplicated--in 37, complicated--in 65) were analysed. Tactics of treatment depended on the state and age of the children, history of the disease, findings of roentgenocontrast and radionuclide study of the stomach and intestine, laparoscopy, macro- and microscopic picture, state of the abdominal cavity at the moment of operation. In most patients, the favourable results of treatment were achieved. The lethality was 3%.

Adolescent↗
PubMed1985

[Ultrasonic Doppler recording in the diagnosis of the patency of aortocoronary shunts].

Eighty-seven autovenous shunts were examined using ultrasonic dopplerography to assess the patency of aorto-coronary shunts in 32 patients. B-scan was used to visualize the shunts and measure their inner diameter. Liner blood flow rate was measured with a Doppler adapter distinguishing the direction of the flow. Methodologic aspects of the application of this method to the assessment of the patency and function of aorto-coronary shunts are outlined. To verify the method, selective angiography was performed in 18 patients. A significant correlation was demonstrated between the two techniques. Ultrasonic Doppler scanning measuring linear blood flow rate is a safe, non-invasive and reliable method for the assessment of patency of aorto-coronary shunts. It can be used on an out-patient basis.

Adult↗
PubMed1983

[Left-ventricular function before and after aneurysmectomy].

Clinical findings in central hemodynamics of patients with postinfarction aneurysm of the heart are reported. Hemodynamics and myocardial contractility were examined during surgery in 92 patients. Aneurysmectomy was shown to normalize, while still in the surgery, residual volumes of heart cavities and increase significantly myocardial performance. A method for recording hemodynamic information and results of surgical treatment, with blood pressure and flow rate presented as diagrams, is discussed.

Adult↗
PubMed1979

[Effect of blockaders of cardiac beta-adrenergic structures on the central hemodynamics and contractile function of the myocardium in acute experimental coronary insufficiency].

The indices of central hemodynamics and myocardial contractile function were studied in 35 dogs before and in different periods after the administration of drugs which block beta-receptors: propranolol, pindolol, and talinolol. The drugs blocking the beta-adrenergic receptors were administered against the background of an intact myocardium to 15 dogs and against the background of acute coronary insufficiency to another 15; acute ischemia was induced in 5 dogs to which the drugs were not given. It was established that beta-adrenergic blocking agents have a beneficial effect in the acute stage of myocardial ischemia; they exert a marked influence on the consumption of oxygen by the myocardium, intramyocardial tension, and the contractile capacity and rhythm of the heart. Talinolol produced the most favourable effect.

Acute Disease↗
PubMed1978

[Echography of the right sections of the heart (methodological aspects of ultrasonic location)].

In location of the cardioelements from the intercostal spaces at the left sternal border, the anteroposterior directions of the ultrasonic beam are called standard positions of the sensor, while the right directions of the beam--the right positions of the sensor. In definite cases the use of the right positions of the sensor makes it possible to record the right cavities of the heart. Depending on the foreshortening of the locating impulse, considerable variability of the shape of triacuspid valve movement is noted. The pulmonary valve is usually represented on the echogram at a depth of 3--5 cm by a thin linear structure which moves away from the thoracic wall rapidly during the ejection period. It is presumed that the recording of the right parts of the heart will yield valuable diagnostic information in echocardiographic examination.

Adolescent↗
PubMed1978

[Effect of baxacor on the hemodynamics and contractile function of the myocardium in acute ischemia (an experimental study)].

The article discusses the results of experiments on 16 dogs in which acute myocardial ischemia was reproduced with intravenous infusion of baksacor and without the infusion of the drug; control experiments were also performed on an intact heart with baksacor infusion. Hemodynamics and myocardial contractility were studied throughout the entire experiment. It was found that baksacor had practically no effect on an intact heart. In acute ischemia the maximum effect of the drug was manifested on the 5th-25th minutes. An increase of the stroke volume and normalization of the rate of shortening of the contraction component were observed. An anti-arrhythmic effect of baksacor was noted.

Acute Disease↗
PubMedDate not supplied

Reconstructive microsurgery in treatment of lymphoedema in extremities.

A total of 510 cases of primary and secondary lymphoedema in upper and lower extremities have been examined with two thirds of primary lymphoedema cases among them. Radical mastectomy combined with irradiation has led to the development of obstructive lymphoedema of upper limbs in most patients. 230 patients with primary and secondary lymphoedema have been subjected to microlymphatic surgery and lymphaticovenous anastomoses have been carried out with microsurgical techniques. Limb volume measurement, the results of direct lymphangiography and intralymphatic pressure reading were taken into account to select patients suitable for microlymphatic surgery. Most favourable results have been obtained in secondary obstructive lymphoedema cases (total 81.2%) due to well-marked hypertension in lymphatic vessels that contributes to better functioning of the lymphaticovenous anastomoses made in a patient.

Adolescent↗