Syndróm polycystických ovárií (PCOS) je najčastejšou endokrinopatiou u žien fertilného veku a najčastejšou príčinou porúch menštruačného cyklu. Je charakterizovaný hyperandrogénnym stavom (klinickým alebo biochemickým) a ovariálnou dysfunkciou (anovuláciou alebo ultrasonografickým nálezom polycystických ovárií), čo sú zároveň kritériá pre jeho diagnózu podľa Androgen Excess and PCOS Society. Syndróm má mnohopočetné fenotypové prejavy, medzi ktoré patrí okrem uvedených charakteristík aj metabolický syndróm, predovšetkým obezita a inzulínová rezistencia. Diagnóza PCOS je v klinickej praxi pomerne náročná a stále platí, že je diagnózou per exclusionem, po vylúčení iných príčin hyperandrogénneho stavu a chronickej oligo-anovulácie. Vyžaduje si úzku spoluprácu gynekológa, endokrinológa a z hľadiska častých metabolických komplikácií aj internistu, diabetológa a prípadne aj kardiológa. Kľúčové slová: AES kritériá – diagnóza – diferenciálna diagnóza – syndróm polycystických ovárií, Polycystic ovary syndrome (PCOS) is the most frequent endocrinopathy among women of reproductive age and the most frequent cause of menstruation cycle disorders. It is marked by a hyperandrogenic state (clinical and/or biochemical) and ovulatory dysfunction (anovulation and/or ultrasonographic finding of polycystic ovaries), which are also criteria for its diagnosis according to Androgen Excess and PCOS Society. The syndrome has multiple phenotypic expressions, among them besides the above characteristics also a metabolic syndrome, primarily obesity and insulin resistance. Diagnosing of PCOS may be rather exacting in clinical practice and it remains to be a diagnosis per exclusionem, following elimination of other causes of hyperandrogenic state and chronic oligo-anovulation. It requires a close cooperation between a gynecologist and endocrinologist and with regard to frequent metabolic complications also with an internist, diabetologist and possibly cardiologist. Key words: AES criteria – diagnosis – differential diagnosis – polycystic ovary syndrome, and Ivica Lazúrová, Jana Figurová, Zora Lazúrová
There is an intuition that the past does not ever change. In their paper ''The puzzle of the changing past'', Luca Barlassina and Fabio Del Prete argue that in 2012 the past changed. I show that we are not in a position to accept their argument., Existuje intuice, že minulost se nikdy nezmění. Luca Barlassina a Fabio Del Prete ve svém příspěvku ,,Hádanka měnící se minulosti'' tvrdí, že v roce 2012 se minulost změnila. Ukazuji, že nemůžeme přijmout jejich argument., and Terence Rajivan Edward
Diagnostika sclerosis multiplex (SM) sa opiera o dôkaz diseminácie ochorenia v priestore a v čase pri vylúčení iných neurologických ochorení, ktoré môžu byť svojím klinickým priebehom a rádiologickým nálezom SM veľmi podobné. Kým vytvoreniu kritérií na splnenie daných požiadaviek diagnostiky SM sa venuje velká pozornosť, kritériá pre diferenciálnu diagnostiku SM ostávajú v pozadí. Na druhej strane MR kritériá pre disemináciu SM v priestore dosahujú vysokú špecificitu (89%) u tých pacientov, ktorí mali vylúčené iné neurologické ochorenia. Pomerne často vidíme v MR nálezoch nešpecifické poškodenie bielej hmoty mozgu, pre ktoré nemáme jednoznačné vysvetlenie. Sú diagnostickým problémom, umožňujú MR podporu velkého počtu ochorení, a takýmito nálezmi sa doposiaľ užívané kritériá nezaoberajú. Zároveň sa pri MR vyšetrení stretávame s nálezmi demyelinizačných lézií, ktoré svojou veľkosťou a uložením v bielej hmote mozgu pripomínajú SM, ale napr. vek pacienta alebo priebeh jeho klinických ťažkostí nezapadajú do vzorca niektorej z foriem SM (obr. 1A,B). V kontexte uvedeného môžu byť MR nálezy netypické pre SM alebo typické pre iné ochorenia nápomocné v procese diferenciálnej diagnostiky a manažmente pacientov s podozrením na SM. Európska skupina expertov nazvaná MAGNIMS (Magnetic resonance neťwork in multiple sclerosis) definovala na základe vedeckých výskumov a dôkazov práve takéto skupiny ochorení a pre praktickú názornosť i zdôraznenie ich významu sú označené červenou zástavkou., Diagnosis of Multiple Sclerosis (MS) relies on the evidence of disease dissemination in time and space at the exclusion of other neurological diseases that may clinically or radiologically mimic MS. While the establishment of criteria to meet the requirements of the diagnosis of MS is given múch attention, the criteria for differential diagnosis of MS remain in the background. On the other hand, MRI criteria for dissemination in space is of high specificity (89%) in those patients who had ruled out other neurological diseases. Quite often we see in the MRI findings a nonspecific white matter damage, for which we háve no clear explanation. There are a diagnostic problems with it, enabling MRI support for a large number of diseases and šuch findings háve not yet been engaged in the criteria used. Simultaneously on MRI seans we meet with the findings of demyelinating lesions suggestive of MS with their measurement and localisation in the white matter, but for example the age of a patient or his clinical course does not fit the pattern of anyforms of MS (Fig. 1A,B). In the context written above, the MRI findings atypical for MS or typical for other neurological diseases may be helpful in the process of diíferential diagnosis and management of patients with suspected MS. The European group of experts called MAGNIMS (Magnetic Resonance Network in Multiple Sclerosis) defined on the basis of scientific research and evidence exactly this group of diseases, and for practical illustration and highlighting their significance they are marked with red flags., Daňová M, Klímová E., and Literatura 30
This paper is concerned with the determination of the relationship for the calculation of the discharge coefficient at free overflow over a rectangular sharp-edged broad-crested weir without lateral contraction. The determination was made on the basis of new measurement in a range of the relative thickness of the weir from 0.12 to 0.30 and newly in a large range of relative height of the weir extremely from 0.24 to 6.8 which greatly expands the application possibilities of low weirs. In addition, the effects of friction and surface tension on the value of the discharge coefficient were evaluated as well as the effect of the relative thickness of the weir. The new equation for discharge coefficient, expressed using the relative height of the weir, was subjected to verification made by an independent laboratory which confirmed its accuracy.
The paper deals with the determination of the discharge coefficient, effective head and newly the limit head in the Kindsvater-Shen formula for the determination of a relatively small discharge of clear water using a thin-plate weir with a triangular notch. The determination of the discharge coefficient, effective head and limit head is based on extensive experimental research and is verified by previous measurements by other authors. The experimental research was characterised by a large range of notch angles (from 5.25° to 91.17°), weir heights (from 0.00 m to 0.20 m), and water temperatures (from 15 °C to 45 °C), as well as a focus on relatively small heads (from 0.02 m to 0.18 m), which is where the strengths of the Kindsvater-Shen formula stand out. The experimental research supplemented existing knowledge about the overflow occurring with small heads and small weir notch angles. The newly determined dependencies in the Kindsvater-Shen formula extended its applicability to weirs with small notch angles and newly enabled the determination of the limit head, which restricts its applicability in the determination of small discharges.