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Biomedical subjects

V Atanasov

Publications and source records attributed to V Atanasov.

15 recordsLinked to original sources
PubMed2006

Comparison of biochemical parameters of Muscovy drake semen diluted and stored at 4 degrees C in three buffers.

A comparison study of biochemical parameters of semen from Muscovy drakes diluted and stored at 4 degrees C in three buffers--IMV-buffer (France), HIA-1 and AU (Bulgaria) was carried out. The ejaculates were collected twice a week from ten 1-year-old Muscovy drakes using laying Muscovy females as teaser. Semen was diluted immediately, respectively, with IMV-buffer, HIA-1 and AU, and cold-stored (4 degrees C) for 1, 3 and 6h. The intensities of oxygen uptake at the third hour in semen diluted, respectively, with IMV-buffer (200+/-1.6 nAO/10(9) spermcellsmin), with HIA (224+/-44 nAO/10(9) spermcellsmin) and with AU (238+/-48 nAO/10(9) spermcellsmin) were highly significant in comparison with neat semen (75+/-0.7 nAO/10(9)spermcellsmin). The observed intensity of fructolysis was highest when using AU, followed by HIA-1 and IMV-buffer. During the first hour of storage the level of pyruvic acid was significantly lower in semen diluted with Bulgarian extenders, and this stability for AU referred to the entire period. For lactic acid, the differences were not statistical significant. Our investigations do not show significant differences concerning the dynamics of inorganic phosphate and total lipids after dilution with all tested extenders. On the contrary, high increase of cholesterol efflux from spermatozoa to seminal plasma-diluents were obtained after 6 h of storage. All extenders, IMV-buffer (France), HIA-1 and AU (Bulgaria) for diluting and short time storage of semen from Muscovy drakes at 4 degrees C maintain the necessary comfort of energy metabolism of the spermatozoa.

Animals↗
PubMed1999

[Intracranial hemorrhages in patients being treatment with anticoagulants].

Over the period 1994-1998, five patients presenting coagulation status impairment in the course of sintrom treatment are hospitalized in the Clinic of Emergency Neurology and Neurosurgery. Three of them are with craniocerebral trauma (2 severe forms--score 5 by the Glasgow Coma Rating scale, and one mild form--score 15), one has spontaneous intracerebral hematoma, and one--acute hydrocephalus against the background of ruptured aneurysm of the basilar artery (score 4). Three patients are given sintrom treatment because of rheumatic heart disease (2 with mitral valve prosthetic replacement and one in the post-commissurotomy period), and two--because of absolute arrhythmia, complicated by systemic emboli in the extremities and/or pulmonary artery. Four patients are subjected to operation--2 with craniocerebral injury, one with intracerebral hematoma and one with acute hydrocephalus of which in two cases the outcome is fatal. One female patient presenting serious craniocerebral trauma is not operated (refusal by the relatives) and dies. The therapeutic approach to this contingent of patients is comprehensively discussed.

Acenocoumarol↗
PubMed1998

[Clinical assessment in patients presenting brain metastases].

Over the period January 1988 to January 1998, in the clinic of emergency neurology and neurosurgery of the University Hospital "Queen Giovanna"--Sofia a total of 348 patients with brain tumors are hospitalized. Of them 329 cases are subjected to operation, and in 19 no surgery is undertaken. Forty-four patients with metastatic brain tumors are operated, and in 14 no operation is done. Of those operated 25 (56.8%) are men, and 19 (43.2%)--women. The mean age of male patients is 53.9 years, and of female patients--54.4 years. In 35 cases the metastases are supratentorially situated, and in eight--subtentorially (a female patient has both supra- and subtentorial metastases). Reoperation is performed in three patients, and one dies after the operation. In 13 cases (29.5%) the primary focus of lesion is known prior to operation. Of all patients included in the series 6 present pulmonary carcinoma (46%), 5--melanoma (30.8%), 2--breast carcinoma (15.4%), and one--carcinoma of the gastrointestinal tract (7.8%).

Adenocarcinoma↗
PubMed1998

[Clinical studies of patients with spinal cord metastases].

Eighty-one patients with spinal-cord tumors are hospitalized in the Clinic of Emergency Neurology and Neurosurgery over the period 1988 through 1997. Of the total number, 74 patients of which 25 presenting metastases from neoplasms with primary location out of the central nervous system, are subjected to operation. There are 4 tumors involving the cervical segment, 1--cervicothoracic, 17--thoracic, 1--thoracolumbar, and 2--lumbar segment. Histological verification is done in all patients operated on. The indications for undertaking surgery in this particular contingent of patients are discussed.

Contrast Media↗
PubMed1997

[Practical guidelines for the management of closed spinal cord injuries].

The principles underlying the necessity of operative management in handling closed spinal cord trauma, its indications and types of operative interventions are comprehensively discussed. Under separate headings are described the peculiarities of the approach to injuries involving cervical, thoracic and lumbal segments of the vertebral column, with a summarization of currently used methods and procedures, contributing to the more complete functional recovery of the spine, preservation and creation of optimal conditions for regaining the functions of the spinal cord affected which in turn, renders easier the performing of daily living activities, precludes the development of a variety of complications in the body as a whole, and first and foremost, allows for early initiation of rehabilitation measures.

Humans↗
PubMed1993

[Biliary ileus].

This is a report on nine cases presenting biliary ileus. All patients undergo operative management. Two female patients present Bouveret's syndrome. The inference is reached that gallstone induced intestinal obstruction is characterized by atypical clinical patterns, conditioning in turn the diagnostic difficulties encountered, and the necessity to undertake operative treatment against the background of advanced ileus. The latter is one of the rarest forms of intestinal obstruction. Biliary ileus treatment consists in the removal of small intestinal impatency. The concretion is pushed in oral direction, and its evacuation is successfully accomplished by enterotomy, duodenotomy or gastrotomy. Two fatal outcomes due to severe advanced form of ileus are reported.

Aged↗
PubMed1993

[The basic principles of diagnosis and treatment in emergency surgery].

A review of the literature is made, in the attempt to establish the principles of the diagnosis and treatment in emergency surgery. They are listed as follows: 1. To preserve patient life and evaluate the functional capacity of the organism; 2. To establish emergency diagnosis; 3. To choose the method of treatment; 4. Method of operation. The guidelines in emergency surgery is to develop and perfect new methods of operation and new technical facilities, to raise the professional skill of the surgeon and to improve the organization of work in surgical clinics and departments.

Diagnosis↗