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Showing 2 results for Omidvar
Evaluation of Patient's Dose and Estimate of Cancer Risk in Electrophysiology Studies and Ablation in Cath Lab Center of Afshar Hospital, Yazd, Iran
Fatollah Bouzarjomehri, Fereshteh Omidvar, Mohammad Hossein Zare, Mashallah Nakhaeine Nejad,
Volume 27, Issue 11 (2-2020)
Abstract
Introduction: Today electrophysiology studies and ablation have been developed due to increasing arrhythmias disorder of heart. In these diagnostic – treatments methods, the use of fluoroscopy can be causes patient radiation dose, therefore evaluation of patient's absorbed dose is necessary to protection of the radiation. The aim of this study was to evaluate the absorbed dose in patients undergoing electrophysiology and cardiac ablation and to estimate their risk of cancer in Yazd Afshar Hospital.
Methods: This study was a cross-sectional study. In this study, the mean absorbed dose of referral patients for electrophysiology studies and ablation had been measured in the cat. Lab of Afshar Hospital, Yazd. The dosimeter had been used in this research was KAP meter, the M4 DIAMENTOR made in Germany that was able to measure dose-area product and time of the fluoroscopy. The patient effective dose was calculated by the PCXMC software from dose-area product.
Results: The mean dose-area in ablation and electrophysiology studies was respectively 153.34±105.32 and 5.62 14.88 Gy.cm2 and the radiation time range was recorded 3.32 to 68.65 minutes and 1.03 to 6.28 minutes, respectively. The mean effective dose of ablation and electrophysiology studies were respectively 16.38 and 1.65 mSv. The cancer risk per ten thousands of patients, who were under the ablation and electrophysiology examinations were estimated 13 and 1.3 people, respectively.
Conclusion: Increasing of patient dose due to ablation in this study relation to the other studies can be due to long old of image intensifier device.
 
Relation between Concentration of Pollutants and Some Climatic Parameters on Cardiovascular and Respiratory Disease Mortality in Shiraz
Kamal Omidvar, Sepideh Shahaeian, Mahbobeh Amiri Esfandegheh,
Volume 28, Issue 3 (6-2020)
Abstract
Introduction: Industrialization and the growing of urbanization have increased the amount of contamination and have a devastating impact on the population health; the aim of this study was the relationship between pollutants and some climatic parameters on mortality of heart and respiratory diseases in Shiraz
Methods: The study was an analytical one. Firstly, daily data on climate elements (temperature, humidity, pressure, wind) from Shiraz Meteorological Office (2004-2014), daily information on air pollutants (CO, PM, NO2, SO2, O3) from Shiraz General Environment Department and cardiovascular and respiratory mortality rates from Shiraz University of Medical Sciences was collected, respectively. Data were analyzed using software SPSS ver. 22; statistical methods and correlation coefficients of monthly, seasonal and monthly averages and mortality rates were investigated.
Results: Results of this study indicated that there was a significant correlation between the parameters of the climate (humidity, pressure, temperature and wind) and deaths from cardio - vascular and respiratory diseases at the level of 0.99 and 0.95 (**=P<0/01, *=P<0/05). There was a statistical difference between the mortality rates in different seasons in Shiraz and the mortality rates caused by the cardio vascular and respiratory diseases were relatively more sensitive to climate parameters.
Conclusion: In general, during the statistical period, no polluted day was observed in polluted O3, NO2 in Shiraz City, relationships between other pollutants and mortality rates were significant. This correlation is shown by a 1-5 day delay for pollutants of CO, PM10and 6-10 days for pollutants of SO2.

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