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Biomedical subjects

Z Gregora

Publications and source records attributed to Z Gregora.

18 recordsLinked to original sources
PubMed1993

[Complications of thermal injuries leading to death].

The authors analyzed a group of 194 decreased subjects, 119 men and 75 women aged 15.96 years who suffered thermic damage in the years 1981-1989. As compared with the source of burns in 1966-1974, there was a striking increase of subjects who suffered burns during propane-butane explosions. In the foreground of thanatological findings was pneumonia in 49%, shock in 28.3%, sepsis in 26.8% damage of the upper gastrointestinal tract in 23.7% and thrombotic embolism in 18% of the subjects who died. More than half of them died with normothermia, 25% with hyperpyrexia and more than 20% with hypothermia. As compared with values of LA50 in 1966-1974 an increase occurred which implies a more favourable prognosis of burns. The values of LA50 were higher in particular in in the age group from 15-50 years.

Adolescent↗
PubMed1993

[Forensic evaluation of drowning].

The authors discuss the basic types of the mechanism of drowning and different findings on necropsy. They draw attention to some endogenous and exogenous factors which participate in the development and course of drowning and changes which occur when the corpse is in water for prolonged periods. On examples from practice they demonstrate difficulties which may influence the diagnosis, in particular uncommon interferences with the organism.

Drowning↗
PubMed1989

[Traumatic complications of indirect cardiac massage].

The author analyzed injuries in 238 subjects where before death indirect cardiac massage was applied by skilled health workers. The ribs were fractures in 27.7% and the sternum in 16% of the deceased, injuries of other organs were detected 13 times (5.5%). In women injuries were more frequent and fractures of the sternum markedly more frequent than in men. While in men rib fractures on the left side were more frequent than on the rights side, in women this difference was not observed. Rib fractures were mostly in the medioclavicular line at the level of the 3rd-5th rib. The fractures of the sternum were also most frequently at the level between the 3rd and 5th rib. No fractures of the 10th-12th rib were found. The author observed an age-depunende cy of rib fractures in men and women, while fractures of the sternum were age-dependent only in men. There was no relationship with age as regards injuries of other organs. Only in two deceased subjects the injury which developed during indirect cardiac massage was the immediate cause of death. Once it was rupture of the interval mammary vein with haemorrhage into the mediastinum and haemorrhage into the chest, in the other case rupture of the right ventricle with cardiac tamponade.

Female↗
PubMed1986

Attempts to demonstrate specific antibody responses in the vitreous body of the eye.

Postmortem serum and vitreous humor specimens obtained from 31 autopsied human bodies were assayed for specific antibody responses to adenoviruses, RS virus and Mycoplasma pneumoniae using the complement-fixation (CF) test and the ELISA procedure (in 23 of the bodies examined). The antibody responses as measured by the CF test were negative in all vitreous body samples tested, with the ELISA five specimens gave a positive reaction at a titre 1 : 40 and one at 1 : 80. These positive antibody titres turned out to invariably coincide with the high-titre antibody levels in the serum. Implicitly, at high-titre levels in the serum these antibodies tend to penetrate in the vitreous body of the eye.

Adult↗
PubMed1985

[Changes in the UV spectrum of the vitreous body in relation to the time of death].

The UV spectrum of 40 samples of vitreous body was determined in different time periods after death. The vitreous body was diluted in the ratio 1:200 and 1:400 by means of redistilled water. It was found that the ratio of absorbance corresponding to the peaks of the curve is dependent on the time period after death. The regression analysis determined an exponential relation, making possible to estimate the time period after death in the dilution of the vitreous body in the ratio 1:200. For this kind of determination cases of deceased persons with damaged brain or cases with too high an absorbance did not prove suitable. In the dilution 1:400 the variance was too high and did not provide data that would be suitable for determining an estimate of the time elapsed from death.

Forensic Medicine↗
PubMed1985

[Chlorides in the vitreous body].

The author assessed chloride levels in the vitreous body in a total of 130 deceased persons. The chloride level was constant up to cca 70 hours after death and from the amount of chlorides conclusions can be drawn whether the amount of chlorides before death was low, high or normal. The author discusses findings of high and low chloride levels.

Adolescent↗
PubMed1984

[Creatinine and urea in the vitreous body].

Creatinine and urea in the vitreous body after death were determined in 146 and 149 deceased persons in a period of 2 to 132 hours after death. There was not any relation to the time period from death and the amount of creatinine and urea in the vitreous body. In 21 deceased subjects, where there was not any basis for changed amounts of creatinine or urea, the mean amount of creatinine was 106,05 +/- 43,5 mumol/l, that of urea 5,77 +/- 2,14 mmol/l. There was a good agreement between the results of the amount of creatinine and urea in serum before death and creatinine and urea in the vitreous body after death.

Adolescent↗
PubMed1979

[Sodium and magnesium levels in the vitreous body].

The technique of atomic absorption spectrophotometry was employed for the estimation of sodium and magnesium in 50 deceased persons. No dependence on the time elapsed after death was found. Significantly higher average quantities of sodium were proved in subjects who had died as a result of brain contusion; higher quatities of magnesium were found in subjects who had suffered from chronic liver involvement.

Adult↗
PubMed1978

[The proportion of potassium and calcium in the vitreous body in relation to the time of death].

The method of atomic absorption spectrophotometry was employed to estimate the proportion of potassium and calcium in vitreous humour in 47 deceased persons. The amount of both was found to increase in linear proportion to the time elapsed from death. The correlation can be expressed in the form of equations. The simultaneous estimation of the proportion of potassium and calcium in vitreous humour enables a more precise ascertainment of the time of death than the estimation of merely one of the two elements. In persons who died of brain injuries, strangulation or who had suffered from conditions associated with metabolic breakdown, the time of death should not be determined according to the amount of calcium in vitreous humour; in such cases only the proportion of potassium should be exploited.

Adult↗
PubMed1978

[Analysis of the causes of fatal burns].

In 500 casualties who died from thermal injuries comprising 314 men and 186 women, all above 15 years of age, the causes of the injuries were analyzed. In 266 the injuries were contracted at home, 140 were industrial injuries and 94 other injuries (transport, criminal, agriculture). The authors discuss the causes of injuries and their frequency. Finally they draw attention to the adverse development of non-occupational injuries in the home.

Adolescent↗