Side effects of retinoid therapy on the quality of vision.

Retinoids are compounds chemically related to vitamin A, which are frequently used in dermatological practice (1). They are characterized by numerous mechanisms of action leading to normalization of keratinocyte proliferation and maturation. They have anti-seborrhoeic, immunomodulatory and anti-inflammatory effects (1, 2).

Environmental risks perception--a study of the awareness of families to threats in areas with increased health disorders in children.

Introduction: Children are at greater risk than adults to experience adverse effects from environmental agents. Significant neurological damage to children can occur even at very low levels of exposure. Reliable protection of children living in areas with high environmental hazards is not possible without their parent's' understanding of where, how and why children's exposures occur.

[Vasovagal syncope--diagnostic difficulties in adolescents].

Consciousness disturbances in adolescents may be caused by different reasons. Among them, cardiologic and neurological backgrounds should be considered. The most important diagnostic tests the vasovagal syncopes are: tilt-table test, brain oxygenation measurement, routine and extended elektroencephalography.

[Computer modeling the dependences of the membrane potential for polymeric membrane separated non-homogeneous electrolyte solutions on concentration Rayleigh number].

On the basis of model equation describing the membrane potential delta psi(s) on concentration Rayleigh number (R(C)), mechanical pressure difference (deltaP), concentration polarization coefficient (zeta s) and ratio concentration of solutions separated by membrane (Ch/Cl), the characteristics delta psi(s) = f(Rc)(delta P, zeta s, Ch/Cl) for steady values of zeta s, R(C) and Ch/Cl in single-membrane system were calculated. In this system neutral and isotropic polymeric membrane oriented in horizontal plane, the non-homogeneous binary electrolytic solutions of various concentrations were separated. Nonhomogeneity of solutions is results from creations of the concentration boundary layers on both sides of the membrane.

[Arterial hypertension among children and teenagers in the Upper Silesia].

Nowadays arterial hypertension is more frequently observed among children and teenagers then it used to be earlier. Arterial hypertension and obesity are more and more often the main sources of atherosclerosis. The purpose of this work was to assess the patients with the arterial hypertension treated in the Department of Pediatric Cardiology in Katowice in 2003.

[Characteristics of psychological factors participating in the etiopathogenesis of primary arterial hypertension of children and adolescents].

The article presents summary of psychological examination of patients with the primary arterial hypertension disease who where hospitalized in the Department of Pediatric Cardiology of Silesian Medical University in Katowice. All results were analyzed in comparison with actual literature related to discussed problem--participation of psychosocial factors in the development of arterial hypertension. Psychological tests were performed for 60 patients between 9 and 18 years old.

Tilt table testing in obesity.

Introduction: An imbalance between the sympathetic and parasympathetic nervous systems has been indicated in obesity. The aim of the present study was to evaluate the results of tilt table testing (TT) in obese patients.

Methods: 59 patients with simple obesity (F/M: 50/9; BMI: 36.

Arterial hypertension in children treated at the Katowice Department of Pediatric Cardiology between 1993-2000.

In the literature, one can find a common opinion that 1-3% of the children population suffers from arterial hypertension. This rate depends on the diagnostic criterion and the studied population (age, sex, race etc.).

[Diagnostic problems in recognizing structural pathology of the heart during the prenatal period].

The aim of our study was to analyse the results of echocardiographic examinations of 28 fetuses with structural heart abnormalities referred for echocardiographic examination from January 1996 to May 2001 along with their follow-up. Fetal heart anomalies were diagnosed in 2.1% of all of the examined fetuses (28/1319).

[A test for evaluating specificity and course of tilt table testing based on two groups of healthy volunteers (adolescent athletic swimmers and controls)].

The aim of this study was to estimate the results of tilt table testing in two groups of healthy adolescents--swimmers and control. Cardio-vascular reactions on tilting were determined by the measurements of heart rate (HR), systolic (SBP) and diastolic blood pressure (DBP). The study was carried out in accordance with the Polish Cardiac Society procedure.