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Biomedical subjects

I Pap

Publications and source records attributed to I Pap.

At least 19 recordsLinked to original sources
PubMed1999

The elusive diploic veins: anthropological and anatomical perspective.

Diploic veins (Canales diploicae), which were identified in dogs by Dupuytren more than 200 years ago (Hecker [1845] Die anatomische Verhaltnisse und Krankheiten der Venae diploicae und Vasa emissaria. Erfahrungen und Abhandlungen im Gebiete der Chirurgie und Augenheilkunde. Erlangen), have remained inadequately understood and scantily referenced in the anatomical and anthropological literature. The tunnels formed by diploic veins are among the few known skeletal markers of soft tissue alteration. Protected by two bony laminae, diploic vein tunnels often resist postdepositional destruction and may provide a new way to assess living and extinct hominid populations. This basic research was carried out to enable future utilization of the diploic venous channels in anthropologic research. In the present study, diploic venous channels were observed radiographically in 108 human adults aged 19 years and above, 18 infants and children aged 1-18 years (Hamann-Todd Osteological Collection), eight fetuses aged 7-9 months (the Johns Hopkins Collection), and seven nonhuman primates (Hamann-Todd Osteological Collection). In addition, seven documented cases of parents and children were radiographed for genetic evaluation (Osteological Collection of The Hungarian Natural History Museum). Five distinct diploic distribution patterns were identified and described in this study. This was at variance with the impressions reported in dissection-based studies. Independence of diploic vein pattern from demographic (gender and age) and size factors and their tendency to be symmetrical make them amenable and reliable traits for skeletal population study. Diploic vein patterns appeared to be more complicated in humans than in nonhuman primates, raising the possibility of future phylogenetic applications.

Adolescent↗
PubMed1999

[Microscopic study of dental calculus in cadavers from the 18th-19th centuries].

The authors studied the dental calculus of 20 mummies with ligth microscopy, polarized ligth microscopy and scanning electron microscopy. Gram positive bacteria could be detected in all preparates, while Gram negative bacteria in 12 and fungi only in 3 dental calculus was visible. Animal food remains within five, and plant remains in all dental calculus were identified. Anorgic element and cell debris were seen in all preparates.

Adult↗
PubMed1998

[Pacemaker syndrome without a pacemaker].

Circulatory consequences of cardiac arrhythmias are not always evident. Proper interpretation of the clinical symptoms in certain cases requires assessment of the patients' other hemodynamic characteristics. The authors present the case of a patient with left ventricular hypertrophy, who developed severe circulatory failure at the time of artrioventricular dyssynchrony in association with junctional rhythm. Analogy between the circulatory consequences of the junctional rhythm and ventricular pacing was documented by hemodynamic measurements. The patient was subsequently treated by implanting an atrioventricular pacemaker.

Aged↗
PubMed1998

[Carotid sinus syncope: the vasodepressor component].

Carotis sinus syncope is one of the leading indications for pacemaker implantation in Hungary. Although the role of the vasodepressor component is emphasized in our current guidelines, documentation of the vasodepression in technically difficult and therefore often abandoned. A case of a patient is presented who received a VVI pacemaker in spite of documented mixed carotid sinus syncope. Subsequent to the pacemaker implantation, patient's condition deteriorated, characterized by frequent syncopal episods. Replacing the VVI pacemaker by a DDD device resulted in prompt relief of symptoms. The importance of invasive or noninvasive hemodynamic monitoring in the diagnostic workup of these patients is emphasized.

Aged↗
PubMed1997

[Defecation syncope following pacemaker implantation].

A case of syncope is reported, where hemodynamic responses compatible with pacemaker syndrome occurred during defecation. A 73 year old female received a VVI pacemaker for complete heart block. Subsequently she sustained repeated episodes of defecation syncope. Hemodynamic investigations revealed an abnormal blood pressure drop occurring at the overshoot phase of the Valsalva maneuver in association with alternation of sinus and pacemaker rhythm. This modified Valsalva response in the presence of contributing factors, such as hypovolemia and nitroglycerin therapy manifested as defecation syncope. The abnormal condition was treated by eliminating the contributing factors, and by programming a low pacemaker frequency, thus precluding sinus-pacemaker alterations.

Aged↗
PubMed1996

[Micturition syncope].

The micturition syncope is a special manifestation of the so called "situational syncopes". These reflex syncopes share efferent mechanisms with the neurocardiogenic, or vasovagal syncope. A case of a patient is reported, who presented with micturition syncope. The patient's tendency for vasovagal syncope was documented by a positive tilt table test. The uniform premonitory symptoms preceding the two fainting attacks indicated the relation between the episodes. The authors review the literature of the micturition syncope, and discuss the potential pathomechanisms.

Humans↗
PubMed1996

[Correlations between clinical picture and coronary angiography in unstable angina].

In a one year period (from 01.07. 1993 to 30. 06. 1994) 103 patients were admitted to the Central Intensive Care Unit of the Albert Szent-Györgyi Medical University with the diagnosis of unstable angina. In this cohort of patients the authors assessed the correlation of clinical and angiographic data. Significant coronary artery disease was found in 84% (85 patients), single-vessel disease in 23% (24 patients), double-vessel disease in 38% (29 patients), triple-vessel disease in 20% (21 patients), left main stenosis in 8% (8 patients). The culprit lesion was determined in 73 cases. The distribution of the culprit lesion severity was the following: 50-70% in 17% (12 cases), 70-90% in 27% (20 cases), greater than 90% in 44% (32 cases), 100% in 12% (9 cases). Simplex lesions were seen in 43 cases, complex lesions in 9 cases, diffuse irregularities in 5 cases and total occlusions in 9 cases. Abnormalities indicating intracoronary thrombin-us were seen on 5 coronarograms. No correlation could be demonstrated between the clinical classes according to Braunwald and the angiographic morphology.

Adult↗
PubMed1994

[Persistent atrial flutter induced by propafenone (Rytmonorm)].

The case history of two patients with atrial fibrillation are presented. In order to prevent/terminate fibrillation propafenone (Rytmonorm, 450-600 mg/day) was started, however this therapy resulted in permanent atrial flutter of 230-270/min mainly with 2:1 antrioventricular conduction. Analyzing the cases the authors emphasize that although Class Ic antiarrhythmic drugs (flecainide, encainide, propafenone) are capable to prevent or terminate atrial fibrillation, they may also induce atrial flutter in approximately 3.5-5% of these patients. The mechanism and recognition of this atrial proarrhythmic action are discussed.

Aged↗
PubMed1991

Porotic hyperostosis on fossil skulls. A study, using scanning electron microscopy.

Fine structural alterations of cancellous bone in all three forms of porotic hyperostosis (porotic, cribrotic, and trabecular) were examined by the authors. The architecture of cancellous bone was altered, resulting in extended and dilated medullary spaces. Single-bone trabeculae, too, differed from normal by alteration of internal collagen structure and lamellae.

Fossils↗
PubMed1990

[Diabetes mellitus and development of kidney insufficiency].

With respect to the great number of diabetics in our population and the development of renal insufficiency as a fatal complication at diabetic patients (15-25% of chronic haemodialysis patients suffer from diabetes mellitus) we examined diabetics of a rural district. We registered a total of 1164 diabetics: 690 of them showed normal renal function while 405 patients had serum creatinine in threshold values and 69 patients' serum creatinines exceeded 120 mumol/l. The age of onset and the duration of diabetes mellitus, its type and the metabolic control, furthermore symptoms of proteinuria, hypertension, obesity and retinopathy were registered in relation to renal function. The duration of diabetes, the metabolic control, proteinuria turned out to be prognostically important factors.

Adolescent↗
PubMed1989

[Attempted suicide with verapamil].

A 26-year old woman took 4000 mg (100 tablets) of VerpamilR (Orion Pharmaceutica, Helsinki) with suicidal intestions. As a consequence of the poisoning cardiogenic shock, 3rd grade AV block and cardiac arrest occurred. The disturbance of stimulus formation and conduction was treated with a temporary pacemaker. Discussing the therapeutical possibilities it is stated that cardiovascular symptoms may be influenced successfully by Ca++ preparations (Calcium gluconicum, Calcium chloratum) and beta-receptor stimulants (isoproterenol, dopamine, orciprenalin) possibly also with glucagon.

Adult↗
PubMed1987

[Is there a familial aggregation of glomerulonephritis?].

In the literature sporadically familial incidences of glomerulonephritis are described. As a contribution to this theme the family anamneses of 210 patients with histologically ascertained glomerulonephritis were evaluated. Apart from the genetically caused Alport syndrome an accumulation also of other form of glomerulonephritis were established in about 5% of these 210 patients. It is referred to the necessity of taking into consideration this fact but also the aimed establishment of paraclinical findings, above all of immunological parameters in members of the family in order to better answer the question of familial incidences of Glomerulonephritis.

Adolescent↗
PubMed1985

[Results of immunosuppressive therapy of chronic glomerulonephritis in 400 patients].

For the judgment of the success of the immunosuppressive therapy of chronic glomerulonephritis 400 patients (242 males and 158 females) at an average age of 31.2 years were examined after an average duration of treatment of 31.9 months. Apart from the renal function (serum creatinine), the histological and immunohistological form of the glomerulonephritis for the valuation further clinico-paraclinical data were taken into consideration: proteinuria, nephrotic syndrome, arterial hypertension and the combination of nephrotic syndrome and arterial hypertension. At the beginning of the treatment 293 of 400 patients (73.2%) had a normal renal function, 107 of 400 patients (26.8%) were initially renal-insufficient. 16 of 400 patients (4.0%) had additionally a pyelonephritis and 12 of 400 patients (3.0%) had a lupus nephritis. 27 of 400 patients (6.9%) developed a terminal renal insufficiency after an average duration of observation of 40.5 months. Complications caused by therapy were registered in 104 of 400 patients (26.0%). Recommendations for the present therapy of chronic glomerulonephritis are formulated.

Adolescent↗
PubMed1981

[The significance of "slight proteinuria"].

It is reported on renal biopsies in 67 patients with "slight proteinuria", 39 of whom were at an age of younger than 20 years. In 53 patients the cause of the "slight proteinuria" is a mesangio-proliferative glomerulonephritis, where in 2 cases severe changes with sclerosis were proved. Thus by way of addition the necessity of a renal biopsy is emphasized for the clarification of the cause also of a "slight proteinuria".

Adolescent↗
PubMed1978

[Monitoring of the clinical and morphological course of glomerulonephritis].

It is reported on the clinical and morphological course of 50 patients with glomerulonephritis. The period of observation extended from 6 months to 10 years. The judgment of the clinical and morphological course was done on the basis of the laboratory findings or by means of the control biopsy. In the period of observation 36 patients were treated with different medicaments, whereas 14 patients were observed without treatment. A positive success of the therapy could not be recognized in the group of patients described the clinical and morphological course in the patients is described and the author adopts a definite attitude to the necessity of control biopsies.

Adolescent↗