Showing 6 results for Mohammadfam
Iraj Mohammadfam, Maryam Movafagh, Alireza Soltanian, Mohsen Salavati, Saeid Bashirian,
Volume 2, Issue 1 (Journal of Ergonomics 2014)
Abstract
Background: Adverse events are injuries and problems are derived from management than the original condition. In particular, Intensive care units are as a place of significant human errors and preventable adverse events in the health care system. The present study was conducted to identify and evaluate human errors among cardiac intensive care nurses in a teaching hospital in Hamadan city.
Materials and Methods: This qualitative study was conducted using the cream technique. in this study nursing job were analyzed using hierarchical task analysis. Then the work sheet of cream techniques completed through observation and interviews with the nurses. Data analysis was performed using spss-16 software.
Results: Findings show that the maximum probability of error are in setting tasks and use DC shock in urgent cases, data recording in the hospital system, said start code resuscitation of heart and lung (CPR) respectively 0.02108, 0.02088 and 0.02086. Minimum probability of error were Determine nutritional needs and diet, gavages and necessary care and giving oral medications respectively 0.01100, 0.01013 and 0.00966.
Conclusions: The most important suggestion to improve of working situation and reducing of human error probability are modification of nurses shift work, providing of practical training and decrease of additional duties.
Iraj Mohammadfam, Chiman Saeidi,
Volume 2, Issue 4 (Journal of Ergonomics 2015)
Abstract
Introduction: Human errors
result in numerous accidents in healthcare professions every year and lead to
the death of many patients. Considering the high rate of eye cataract surgeries
performed in Iran and the sensitive nature of the surgery, the present study
was conducted to identify and assess possible human errors in the performance
of these surgeries.
Materials and
Methods: The present qualitative, cross-sectional study was conducted to identify
and assess human errors in the process of eye cataract surgery using the SHERPA
technique. At first, using the hierarchical task analysis method,
the surgery process was divided into tasks and sub-tasks. In the next step,
through the same technique, possible human errors were detected and
risk-assessed. Appropriate prevention solutions were then proposed for reducing
the risk of errors.
Results: A total of 53
possible errors were detected for the 41 tasks in the surgery process. The
highest error percentages pertained to performance and the lowest pertained to
retrieval. Moreover, the risk of 22.64% of the errors detected was deemed
unacceptable.
Conclusions: Given the
severity of the outcomes of human errors in cataract surgery, reducing the rate
of the detected errors is crucial. According to the type and frequency of the
detected errors, the findings of the present study emphasize the importance of
designing and implementing behavior-based safety training programs for
ophthalmologists.
Iraj Mohammadfam, Tahere Eskandari, Maryam Farokhzad,
Volume 6, Issue 3 (Journal of Ergonomics 2018)
Abstract
Background and Objectives: The main cause of incidents is human error. The occurrence of these errors in the use of medical equipment can result in harm to the patient, the destruction of equipment, the imposition of economic damages, and the deterioration of the credentials of the health sectors. Hence, the identification, evaluation and management of errors in the use of these equipment is very critical. The present study was conducted to reduce the risk of human errors in using a medical device in one of the hospitals in Iran.
Methods: The study subject was a ventilator device, which was selected considering the high usage and the criticality of its use in hospitals. Identification and evaluation of human error were performed using the PUEA technique, as well as quantification of errors, and reduction of uncertainty in estimating the significance of detected human errors using fuzzy logic.
Results: Based on the findings, 33 errors were detected in the use of the ventilator device. The most common types of errors were the type of error in operation. (72.72%). The most important causes of errors were slips and lapses (42.42%). The main primary consequences for the predicted errors were the device not being sterilized and the possibility of transmission of microbes to patients. In 42.42% of the cases, errors were not recoverable. The results of the PUEA technique and fuzzy logic showed that there is no relationship between the type of error, frequency of its occurrence, and the probability of error occurrence.
Conclusion: In human error studies, the combined use of risk identification techniques and a quantitative approach that determines the probability of identified errors can reduce uncertainty in the final results.
Marzieh Abbassinia, Omid Kalatpour, Majid Motamedzadeh, Alireza Soltanian, Iraj Mohammadfam,
Volume 8, Issue 2 (Iranian Journal of Ergonomics 2020)
Abstract
Background and Aim: Petrochemical industry is one of the most accident-prone industries, and most accidents in this industry are related to human factors. The principles of Lean production are one of the approaches used to improve the production situation. Various studies have shown that implementing Lean production improves the safety and ergonomics. In this study, the principles of Lean production were used to reduce human error and improve response in emergencies.
Methods: The basic CREAM method was used to evaluate human errors. In order to select Lean production tools appropriate to the emergency response tasks, the opinions of the 20-member panel of specialists and experts, including industry managers, HSE officials, and university professors, were used. For examining the impact of Lean production principles on reducing human error in emergencies, 6 months after the implementation of Lean production interventions, human error was re-examined. Evaluation of human errors after Lean production interventions was also performed by basic CREAM method.
Results: The results of the evaluation of human errors before and after the implementation of Lean production interventions showed that the level of control mode of the three sub-tasks improved from the tactical control mode to the strategic control mode. The most probable human error was in evacuate sub-task.
Conclusion: The results of this study showed that the implementation of those interventions that in addition to improving the level of safety, can improve organizational productivity, is more accepted by industry management.
Tahmineh Moradi Tamadon, Fakhradin Ghasemi, Iraj Mohammadfam, Omid Kalatpour,
Volume 8, Issue 4 (Iranian Journal of Ergonomics 2021)
Abstract
Background and Objectives: Firefighting is a difficult and dangerous job. This job requires decision-making and speed in action in critical situations. Such conditions increase the probability of human error in the firefighting activities. Setting up fire operators as the first step of emergency response is associated with high criticality. The purpose of this study is identification and assessment of the risk of human error while setting up and operating fire operators.
Methods: This descriptive cross-sectional study was performed in 2019. Tasks related to the operation of industrial firefighting operators were studied and analyzed by Hierarchical Task Analysis. Then, human errors in the operation of fire operators were identified and analyzed using the systematic human error reduction and prediction approach (SHERPA). Finally, appropriate prevention solutions were proposed to reduce the risk of errors.
Results: A total of 480 errors were detected for 130 tasks as 49.58% of them were action errors, 39.17% check type, 10.42% communication and 0.83% were selective errors and no retried error was observed. According to the results of risk assessment, 8.33% of the errors were unacceptable, 24.17% were undesirable, and 48.33% were acceptable risks but needed to be revised and 19.17% were acceptable without the need for revision.
Conclusion: The process of operating fire operators can be associated with human errors and prevent successful firefighting operations. Therefore, these errors should be identified and controlled using appropriate methods.
Omid Kalatpour, Rashid Heidarimoghadam, Iraj Mohammadfam, Maryam Farhadian, Mohammad Reza Tavakkol,
Volume 10, Issue 2 (Iranian Journal of Ergonomics 2022)
Abstract
Objectives: Risk-taking is a personality trait which plays a part in the occurrence of work-related accidents. For this reason, people who are highly risk-taking whose decision might cause accident should not be employed in critical situations. The purpose of this survey was to design and verify the validity of the risk tolerance questionnaire, suitable for control room operators, through examining the event related potential (ERP).
Methods: At first, the questions were selected from reliable scientific resources based on the conceptual model. The questions of the initial questionnaire were selected based on face validity, and then the questionnaire was filled out by 178 control room operators. At the next step, the best questions of the questionnaire were extracted using exploratory factor analysis (EFA). In terms of reliability, 42 individuals of the study group refilled in the questionnaire again after three months as a test-retest. The ERPs were assessed using electroencephalography along with Balloon Analogue Risk Task (BART). The correlation coefficient calculated between the ERPs, and risky behaviors, and questionnaire scores.
Results: One factor and 13 questions were identified as the best questions regarding EFA. Cronbach's alpha was 0.91. The Spearman correlation coefficient was calculated between the questionnaire score and risk-taking behavior as well as between the questionnaire score and P300, which was 0.38 (P = 0.01, η2 = 0.70) and 0.63 (P = 0.01, η2 = 0.99), respectively.
Conclusion: The Operator control Room Risk-Taking (ORTQ) questionnaire consists of 13 questions which can be used as an appropriate tool to assess the risk-taking trait in control room operators and also for research purposes. This questionnaire has got three personality dimensions including risk-taking nature, impulsivity and venturesomeness.
