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Koudryavtcev S.A.,Municipal Medical and Preventive Treatment Facility | Lazarev V.M.,Municipal Medical and Preventive Treatment Facility
Medical Devices: Evidence and Research | Year: 2011

Introduction: Automatic blood pressure (BP) measuring devices are more and more often used in BP self-checks and in 24-hour BP monitoring. Nowadays, 24-hour BP monitoring is a necessary procedure in arterial hypertension treatment. The aim of this study was to validate the BPLab® ambulatory blood pressure monitor according to the European standard BS EN 1060-4:2004 and the British Hypertension Society (BHS) protocol, as well as to work out solutions regarding the suitability of using this device in clinical practice. Methods: A group of 85 patients of both sexes and different ages, who voluntarily agreed to take part in the tests and were given detailed instructions on the measurement technique were recruited for this study. The results of the BP measurement obtained by a qualifed operator using the BPLab® device were compared with the BP values measured using the Korotkov aus-cultatory method. Data were obtained simultaneously by two experts with experience of over 10 years and had completed a noninvasive BP measurement standardization training course. Discrepancies in the systolic and diastolic BP measurements (N = 510; 255 for each expert) were analyzed according to the criteria specifed in the BHS-93 protocol. Results: The device passed the requirements of the European Standard BS EN 1060-4:2004 and was graded 'A' according to the criteria of the BHS protocol for both systolic BP and diastolic B P. Conclusion: The BPLab® 24-hour ambulatory blood pressure monitoring device may be recommended for extensive clinical use. © 2011 Koudryavtcev and Lazarev, publisher and licensee Dove Medical Press Ltd.

Koshurnikova N.A.,Southern Urals Biophysics Institute | Kaigorodova L.Y.,Southern Urals Biophysics Institute | Rabinovich E.I.,Southern Urals Biophysics Institute | Martinenko I.I.,Southern Urals Biophysics Institute | And 9 more authors.
Health Physics | Year: 2012

Thyroid cancer incidence was studied in the cohort of residents of Ozyorsk and Kyshtym, the nearest upwind cities to the Mayak Production Association (Mayak PA), Russia's first plutonium production facility, which has been in operation since 1948. Radioactive contamination of areas around the Mayak PA were from unmonitored releases of inert gases produced by industrial reactors and also from the release of uranium fission products from a radiochemical plant stack where irradiated uranium blocks were refined. Iodine-131( 131I) was the main contributor to the technogenic dose from atmospheric releases. Routine monitoring of gaseous releases began in the mid-1960s, when a gas purification system was perfected. Children were a critical group due to their higher radiosensitivity and specific diet (dairy products and vegetables). Both cities maintain Registries containing over 100,000 individuals born from 1934-2006. Among this group, more than 100 cases of thyroid cancer were registered during 1948-2009. The relative risk of thyroid cancer incidence is 1.5 times higher than in the Chelyabinsk. Copyright © 2012 Health Physics Society.

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