Showing 11 results for Control
M Moazeni,
Volume 1, Issue 2 (2-2008)
Abstract
Background and Aim:There are a number of successful examples of hydatid cyst control, achieved on a national or regional scale in different countries. The earliest successful program was that in Iceland initiated nearly 143 years ago when cystic hydatid disease was recognized as affecting approximately one of every six Icelanders. With a continuous campaign, by the 1950s hydatidosis was considered eradicated from Iceland. Prior to 1970, in Cyprus, hydatid cysts were routinely found in the lungs and livers of the majority of mature sheep, cattle, goats and pigs, and people believed that hydatid cysts were normal part of the anatomy of infected hosts. By performing a 15-year plan aiming to eradication of the disease, infection prevalence of dog and sheep reduced to zero and 0.11%, respectively and from 1981 to 1985, only a single case of human infection was diagnosed. Elimination of stray dogs was the key element in above remarkably successful program. During the first year of the campaign more than 18000 stray and ownerless dogs were killed.
Conclusion:In Xinjiang Province of China, a control program during 1990-1995 resulted in a dramatic decrease in the infection rate in dogs (from 14.8% down to zero) and sheep (from 73/8% down to 1.4%). In this control program, 16000 dogs and herdsman dogs were given the drug praziquantel for five years. There are also other successful examples of hydatid cyst control in Spain (La Rioja), Australia (Tasmania), Chile, and NewZealand.
Roohangiz Jamshidi Orak, Alireza Amanollahi,
Volume 6, Issue 5 (1-2013)
Abstract
Background and Aim: Randomized controlled clinical trial is the most valid type of epidemiological studies for the treatment of diseases. The aim of the present article is to determine the subject area, type of intervention, and blinding methods used in this type of study design.
Materials and Methods: This is a cross-sectional descriptive study in which all the articles based on randomized controlled clinical trial were studied. The articles were all affiliated to Tehran University of Medical Sciences(TUMS) and indexed in PubMed by the end of the year 2010.
Results: Among the subject areas, most randomized controlled clinical trials(44 cases or 14%) were conducted in the field of Obstetrics and Gynecology. In terms of intervention type, the majority of the studied trials(214 cases or 68.2%) used drug intervention. And regarding the type of blinding, double-blinding was employed more than other blinding techniques(152 cases or 48.4%). On the whole, 125 cases(39.8%) of randomized controlled clinical trials were conducted through drug intervention simultaneous with double-blinding technique.
Conclusion: In different subject areas, the application of blinding techniques and type of intervention are somewhat related to research methodology and medical ethics. It seems that intervention type depends on subject area, and blinding technique is determined by the selected type of intervention.
Fateme Monjazebi , Rahim Rozbahany , Arezo Memarian, Parisa Farnia ,
Volume 7, Issue 3 (9-2013)
Abstract
Background and Aim: Peripheral and intermediate laboratories have an important role in diagnosis, treatment and prevention of tuberculosis. Today, without these laboratories, maintaining health and preventing the spread of tuberculosis is not possible. The aim of this study was Evaluation of manpower, equipment and quality control standards in peripheral and intermediate laboratories assessment checklist within seven selected provinces in year 2011.
Materials and Methods: This study was a cross-sectional survey. In this study eighty tow peripheral and intermediate laboratories from seven selected provinces were studied in year 2011. A standardized checklist was used to assess peripheral and intermediate laboratories.
Results: The result showed that Esfahan with 20 labs and 8870000 population had the highest number of labs and coverage people between other provinces. Khorasan Razavi with an average of 263 per month has the highest number of admission number and Golestan, with an average of 139 positive cases per month, had the highest number of positive cases between other provinces. In 82 labs 117 laboratory technicians were engaged providing services to patients.
Conclusion : The results of this study showed that conditions of most peripheral and intermediate laboratories are optimum and nearly standard. Control and evaluation of peripheral and intermediate laboratories, expert personnel, facilities and equipment are necessary to improve the TB control program in the country.
Amir Ashkan Nasiripour, Pouran Raeissi, Farhad Ghaffari, Mohhamadreza Maleki, Mehrnush Jafari,
Volume 8, Issue 1 (5-2014)
Abstract
Background and Aim: Healthcare processes have caused many dangers to patients, and the
increase of medical errors is one of the most important consequences of such
processes. The present research is conducted to reduce medical errors through
presenting a model to control them.
Materials and Methods: In this mixed
(quantitative-qualitative) research, a conceptual model was assembled. Then
using the model and an interview, a questionnaire was made. The
interview and the researcher-made questionnaire were used to collect data.
The statistical population included the related people and the practitioners
involved in medical errors in Tehran University
of medical Sciences (TUMS)
hospitals. The sample consisted of 252 employees who were non-randomly selected
from those hospitals. Once the affecting factors were determined, the data were analyzed through factor analysis technique. The
gathered data were analyzed using descriptive and inferential statistics. Finally, the research model was
presented.
Results: The selected
individuals pointed out 9 factors controlling the medical
errors: culture, factors associated with patients, factors
related to providers, factors associated with errors,
structural factors, role of disclosure, error registration, individual factors
related to reporting, and organizational factors related to reporting. The 9
factors are the subdivisions of three main factors which account for 57/46% of the total variance of data. The
most decisive power is related to disclosure 0.737
and the least (0.053) pertains to structure.
Conclusion: Discloser of medical errors and their registration are factors which are
effective and essential in controlling medical errors in TUMS hospitals.
Hossein Rahanjam, Hossein Qeraati, Mohammad Reza Kardan,
Volume 10, Issue 4 (9-2016)
Abstract
Background and Aim: One of the main steps of optimization process in diagnostic imaging is quality control of X-ray devices. If the control quality process and the quality of X-ray equipment are not ensured through a systematic procedure, it can increase the risk of unnecessary exposures among the population. Therefore, this study can reduce the risk of unnecessary exposures in the entire population.
Materials and Methods: In this study, six quality control tests including voltage measurement accuracy test, time accuracy test, output repeatability test, output to time linearity test, output to milliamp linearity test, and radiation quality measurement test were evaluated in all centers of Ilam in accordance with what the international Atomic Energy Agency and the Atomic Energy Organization of Iran has presented.
Results: The result showed that diagnostic X-ray devices available in Ilam had a relatively good quality in all quality control tests that were done except the associated with the radiance quality of (HVL). However, almost all these devices need to add additional filters to the X-ray tubes to resolve error in their HVL.
Conclusion: Adding additional filters to radiology devices in Ilam Province and modifying the thickness of filters seem to be necessary and desirable which will prevent the unnecessary increase in patients' dose. The accurate and regular implementation of quality control tests in imaging wards should change into a culture. On the other hand, the relevant organizations which have the great responsibility to protect people against radiation are recommended to monitor and supervise radiology centers more accurately and responsibly to repair diagnostic radiation devices.
Ali Naghi Kebriaee , Rahim Rozbahany, Mojtaba Ahmadi, Parisa Farnia , Donya Malekshahian, Ali Akbar Velayati,
Volume 11, Issue 2 (7-2017)
Abstract
Background and Aim: To improve the quality of laboratory services, World Health Organization (WHO) introduced ISO15189 standard. So, this study aimed to investigate implementation of the standard at Mycobacteriology Research Center (MRC) and determination of its adaptation.
Materials and Methods: At the first step, 12 organizational blocks of the laboratory was assessed by completion of the standard questionnaire. By implementation of the software and audit surveillance the second step was completed. Consequently, the given results were analyzed using SPSS Version 16.
Results: By implementation of Quality Management System (QMS) at the three known focal points (pre analytical¸ analytical and post analytical), MRC was scored 80–100% points during 2013-2014; whereas previous QMS of the national reference TB laboratory (NRL) ranged from 48% to 79%
Conclusion: This study was the first of our knowledge in stepwise implementation of ISO15189 standard in Iran. Internal evaluation of the standard, our NRL ranked as a 5 star laboratory. We seeked international evaluation to accreditation of the national reference TB laboratory.
Omid Zadi Akhule, Ehsan Memarbashi, Aysan Judi, Mohammad Hossein Rafiei, Ebrahim Nasiri,
Volume 14, Issue 2 (5-2020)
Abstract
Background and Aim: The sterile technique is the basis of modern surgery. Therefore, sterile technique observance is required by the surgical team to preserve patient safety and prevent surgical site infection. This study was conducted to determine the knowledge, attitude and practice of Surgical Technologists Regarding the Sterile Techniques principles observance in the operating room.
Materials and Methods: This cross-sectional descriptive study was conducted on 198 surgical technologists working in hospitals affiliated to Mazandaran University of Medical Sciences in 2019. Surgical technologists were selected by stratified random sampling. Data collection was performed using the researcher-made questionnaire for the measurement of knowledge, attitude and practice of surgical technologists regarding the Sterile Techniques. The data was analyzed using SPSS software and applying descriptive statistics, Chi-square and t-test.
Results: The mean scores of knowledge, attitude and practice of surgical technologists regarding the sterile techniques, were 35.7±5.8, 28.3±3.7 and 38.7±6.5 respectively. The score of knowledge and practice was moderate and the score of attitude was good. Findings showed that there was a significant difference between knowledge and practice score with educational level and The mean score of knowledge and practice was significantly higher in the participants with bachelor’s degree as compared to the participants with associate degree(p<0.05).
Conclusion: According to the results, it seems necessary to promote knowledge and practice of the surgical team members by implementation of training programs, encouraging staff to upgrade their education and continuing to evaluate their knowledge and practice regarding the sterile techniques.
Roghaye Khasha, Mohammad Mahdi Sepehri, Nasrin Taherkhani,
Volume 14, Issue 3 (7-2020)
Abstract
Background and Aim: Asthma is a common and chronic disease of respiratory tracts. The best way to treat Asthma is to control it. Experts of this field suggest the continues monitoring on Asthma symptoms and adjustment of self-care plan with offering the preventive treatment program to have desired control over Asthma. Presenting these plans by the physician is set based on the control level in which the patient is. Therefore, successful recognition and classification of the disease control level can play an important role in presenting the treatment program to the patient and improves the self-care and strengthens the early interventions to alleviate the Asthma symptoms.
Materials and Methods: Based on this objective, we collected the data of 96 Asthma patients within a 9-month period from a specialized hospital for pulmonary diseases in Tehran. Then we classified the Asthma control level by fuzzy clustering and different types of data mining method within a multivariate dataset with the multi-class response variable.
Results: Our best model resulting from the balancing operations and feature selection on data have yielded the accuracy of 88%.
Conclusion: Our proposed model can be applied in electronic Asthma self-care systems to support the decision in real time and personalized warnings on the possible deterioration of Asthma control. Such tools can centralize the Asthma treatment from the current reactive care models into a preventive approach in which the physician’s decisions and therapeutic actions are resulting from the personal patterns of chronic Asthma control and prevention of acute Asthma.
Nida Abdolahi, Mohamad Reza Nili Nili Ahmadabadi, Soghra Ebrahimi Qavam, Khadijeh Aliabadi, Mohammad Asgari,
Volume 15, Issue 1 (3-2021)
Abstract
Background and Aim: Deep and sustainable learning requires a safe and healthy environment. Moreover, paying attention to the intertwined emotional, motivational, cognitive and social processes in the teaching-learning process is vital. Academic achievement motivation and self-regulated learning (SRL) are two important elements in this process that are influenced by the achievement emotions in the learning environment. Therefore, the aim of this study is to evaluate the effectiveness of instructional design model based on control-value theory of achievement emotions (CVT), on academic achievement motivation and self-regulation learning.
Materials and Methods: The research was quantitative and performed by Nonequlment design control group. The statistical population included female second year high school students in Tehran in the academic year of 1997-98, who were selected by multi-stage cluster random sampling in two experimental and control groups. The experimental group was trained according to the instructional design model based on CVT theory and the control group did not receive this training method. The questionnaire of academic achievement motivation and self-regulated learning was administered to the experimental and control groups as pre-test and post-test before and after the implementation of the model. Data were analyzed by inferential and descriptive statistics using SPSS software and multivariate covariance.
Results: The results of univariate analysis of covariance of group effect on the scores of dependent variables show that there is a significant difference between the experimental and control groups in cognitive strategy (F=11/94, P>0/05, η2=0/14), metacognition strategy (F=56/06, P>0/05, η2=0/44), motivational beliefs (F=6/36, P>0/05, η2=0/08) and academic achievement motivation (F=10/69, P>0/05, η2 =0/13).
Conclusion: The result of this study show that the use of instructional design model based on CVT theory has a positive effect on cognitive strategies, metacognition strategies, motivational beliefs and learners' academic achievement motivation.
Mehryar Taghavi Gilani, Majid Razavi, Alireza Bameshki, Arash Peivandi Yazdi,
Volume 16, Issue 6 (1-2023)
Abstract
Background and Aim: Treatment of acute postoperative pain is one of the most important measures to improve recovery. Different methods of local and regional anesthesia, and also numerous intravenous drugs have been used. In this study, the analgesic effect ketorolac, paracetamol and pethidine in the postoperative pain control of outpatient transurethral lithotripsy was evaluated.
Materials and Methods: This clinical trial was performed on 96 patients who were candidates for outpatient transurethral lithotripsy in Mashhad Imam Reza Hospital. In randomized double blinded study, at the end of the operation, 30 mg of intravenous ketorolac to the first group, 1 gram paracetamol in half an hour to the second group and 50 mg of pethidine to the third group were injected. Pain was assessed every 10 minutes to half an hour and then, every half an hour to 4 hours by numerical rating scale (NRS). Finally, the data were analyzed by SPSS v16 software. The relationship between quantitative variables was analyzed by analysis of variance and the qualitative variables was assessed by Chi-square test and P<0.05 was considered significant.
Results: There was no significant difference between three groups in demographic information. The pain intensity in the first 10 minutes after surgery was the same between the groups (P=0.372), but the pain intensity at 20, 30 and 60 minutes after surgery was significantly different in the three groups (P.values 0.005, 006, and 0.001 respectively), and was lower in the pethidine group. In other hours after surgery, no significant difference in pain control was observed between the three groups. The need for additional analgesia was higher in the paracetamol group than in the other two groups (P=0.025) in the first hour. Hemodynamic changes and surgical complications such as nausea and vomiting were the same in both groups.
Conclusion: The present study showed that pethidine causes better pain relief than ketorolac and paracetamol in the first hour after surgery, but after 60 minutes there is no significant difference between these three groups.
Maryam Aghajarinezhad, Yahya Salimi, Shahab Rezaeian, Ghobad Moradi, Mehdi Moradinazar, Fatemeh Khosravi Shadmani, Roya Safari_ Faramani, Mitra Darbandi, Farid Najafi,
Volume 17, Issue 2 (5-2023)
Abstract
Background and Aim: All people living in a society are not equally at risk of COVID-19 infection and hospitalization. The current study is aimed to determine the factors related to COVID-19 infection and hospitalization among participants of Ravansar Non-Communicable Disease (RaNCD) cohort study.
Materials and Methods: The present study was conducted between 28th February, 2020 to 27th November, 2021. Data from the RaNCD study, morbidity and hospitalizations cases (extracted from the medical care monitoring system, SAMA system and the handwritten list of the health department) and positive serological results were used. For the case-cohort study, 626 confirmed and/or probable cases and 2107 randomly selected participants as sub-cohort were recruited. For the case-control study, 188 COVID-19 hospitalized patients from RaNCD (as cases) and 632 positive outpatients identified as controls. Data were analyzed using Cox and logistic regression, respectively.
Results: In case-cohort study, the hazard ratio of COVID-19 among people living in rural areas, in smokers and those in middle socioeconomic status was, 0.37 (0.24, 0.58), 1.50 (1.07, 2.11), as compared to the reference groups. While the hazard ratio of people aged 46-64 and those ≥65 years old, as compared to the reference group within the first year, was 3.47 (1.76, 6.86) and 6.45 (2.80, 14.85), the corresponding value after one year was 2.23 (1.13, 4.40) and 3.52 (1.53, 8.10), respectively. The hazard ratio among those with at least one comorbidity was 2.45 (1.53, 3.92) in the first year of study and after one year decreased to 1.82 (1.14, 2.92). In addition, moderate and vigorous physical activity decreased the hazard ratio. In case-control study the odds ratio of hospitalization increased by 0.03% (1.03(1.01, 1.05)) with an increase of one year in age and in people with at least three comorbidities was 2.43 (1.24, 4.73) times of those without comorbidity.
Conclusion: Overall, one year after starting the study the decrease in hazard ratio of COVID-19 was significant. Increase in age and having comorbidities are factors that increased the odds ratio of hospitalization. Such people can be considered for the next waves of COVID-19 prioritized for health care and booster vaccination.
