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Biomedical subjects

I Z Stolkarts

Publications and source records attributed to I Z Stolkarts.

At least 19 recordsLinked to original sources
PubMed1979

Total removal of acoustic neurinomas.

The authors analyze the results of total removal of acoustic neurinomas in 120 patients operated on between January, 1967, and January, 1976. The facial nerve was preserved after surgery in 65 patients (54.2%). The use of microsurgical techniques in the last 3 years of study permitted preservation of the seventh nerve in 26 of 35 operated patients (74.3%). Of 103 patients examined postoperatively, 96 retained their full or partial capacity for work (93.2%). Ten patients (8.3%) died after surgery. In the last 3 years, 35 patients were operated on without a single death.

Adolescent↗
PubMedDate not supplied

[Total removal of acoustic neurinoma].

The analysis is based on the results of a total removal of acoustic neurinomas in 120 patients operated on in 1967-1975. The facial nerve was preserved after surgery in 65 patients (54.2%). In the course of the recent 3 years the employment of microsurgical techniques permitted to preserve the VII nerve in 26 among 35 operated patients (74.3%). Among 103 examined postoperatively 96 retained their full or partial capacity for work (93.2%). Ten patients (8.3%) died after surgery. Within the recent 3 years 35 patients were operated on without a single mortality case.

Adolescent↗
PubMedDate not supplied

[Changes in cerebrospinal fluid pressure in nitrous oxide anesthesia in neurosurgical patients].

By employing continual electromamometry of the cerebrospinal fluid and central venous pressures the influence of nitrous oxide on the CSE pressure was studied in neurosurgical patients operated upon following pneumoencephalography. In patients treated surgically without any preliminary pneumoencephalographic investigation the normo- and hypocapnic artificial ventilation of the lungs with a N2O and O2 mixture produced a significant drop of the CSF pressure. A nitrous oxide anesthesia applied to the patients operated on after pneumoencephalography was accompanied by a marked rise of the cerebrospinal fluid tension. In such cases an artificial hyperventilation of the lungs failed to prevent a rise of the intracranial tension.

Adult↗
PubMedDate not supplied

[Alteration of several indices of carbohydrate metabolism in the blood and cerebrospinal fluid following surgery on patients with intracranial aneurysms].

The content of the lactic acid (LA) and pyruvic acid (PA) was determined pre- and postoperatively in the arterial blood and CSF of 31 patients with intracranial aneurysms. A considerable elevation of the concentration of LA and PA was noted along with an increasing LA/PA in the CSF of patients with symptoms of ischaemic damage of the brain. During surgery under fluothane narcosis these patients also demonstrated a distinct elevation of the LA level along with an increasing LA/PA ratio. In the CSF the growing content of glycolysis metabolites was not accompanied by LA/PA changes. The employment of artificial hypotension had no important effect upon the changes of these parameters in the CSF.

Adult↗
PubMedDate not supplied

[Changes in cerebrospinal fluid lactate and pyruvate levels during brain surgery under fluotane anesthesia].

The lactate and pyruvate content in the arterial blood and CSF of 24 patients operated on the brain under fluothane anesthesia with artificial ventilation of the lungs was measured. Towards the end of the operation and anesthesia a sizably elevated lactate level and accumulation of its excess in the blood were noted, these shifts having been more marked with hypocapnic ventilation of the lungs. An increased concentration of lactate and pyruvate in the cerebrospinal fluid was not attended by accumulation of lactate excess.

Acid-Base Equilibrium↗
PubMedDate not supplied

[The prevention of the intracranial hypertension due to general anesthesia during operations on the brain].

The article deals with the analysis of changes in cerebrospinal fluid pressure (CSFP), mean arterial pressure (MAP), brain perfusion pressure (BPR), and central venous pressure (CVP) during general anesthesia in 172 patients with tumorous, tumor-like, and vascular diseases of the brain. CSFP increased sharply during preanesthesia, in administration of inhalation anesthetics, and under the effect of inadequate anesthesia during trephination of the skull. The rise in CSFP in preanesthesia can be reduced by a combination of barbiturates with neuroleptanalgesics the administration of which is continued for up to 2-3 minutes of artificial lung ventilation through a mask. To correct the rise in CSFP during the use of 70% N2O, the authors recommend preliminary 5-10-minute anesthesia with a N2O + O2 (50:50) mixture and administration of sodium thiopental (2-3 mg/kg) or seduxen (0.2-0.3 mg/kg) in the first minutes of the postintubation period.

Adolescent↗
PubMedDate not supplied

[Artificial arterial hypotension during surgical treatment of intracranial aneurysms].

In studying the content of lactic and pyruvic acids in the cerebrospinal fluid of 31 patients during operation for intracranial aneurysms under halothane anesthesia, the authors established that the performance of these operations under protection of deep (40 mm Hg) and prolonged (up to 2 hrs 25 min) artificial arterial hypotension in an uncomplicated course of the surgical intervention was not attended with hypoxic damage of the brain. The danger of hypoxia developing became greater when acute disturbances of blood flow in the cerebral arteries (clipping of a vessel, spasm) occurred in the period of hypotension.

Adult↗
PubMedDate not supplied

[Changes in cerebrospinal fluid pressure following administration of sodium hydroxybutyrate and viadril-G to patients with brain tumors].

The effect of sodium oxybutyrate and viadril-G on intracranial pressure was tested in 30 patients with tumours in injecting an anaesthetic. The electromanometric method was applied in measuring the pressure of cerebrospinal fluid and central venous pressure. A considerable reduction of intracranial pressure was noted in inducing anaesthesia by sodium oxybutyrate (by 34.5%) and viadril-G (by 24%), which was attended by an increase in perfusional brain pressure.

Adolescent↗