Publications by authors named "R Hajizadeh"

Article Synopsis
  • Acute pulmonary embolism can lead to rapid collapse and is often fatal, with recent studies showing ECG characteristics can help predict patient outcomes.
  • This retrospective study analyzed the ECG data of 106 hospitalized pulmonary embolism patients from 2016 to 2020 to determine the frequency of fragmented QRS and its prognostic implications.
  • Results revealed that fragmented QRS was found in 26.2% of patients, which correlated significantly with higher rates of cardiogenic shock, in-hospital mortality, and the use of advanced treatments like thrombolysis and embolectomy.
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Background: The prevalence and mortality of CVD in women increase over time. We conducted this research to evaluate the severity of coronary artery disease with the number of live births and breastfeeding duration.

Methods: Patients aged 30-50 years old with positive exercise tests or evidence of cardiac ischemia who were candidates for coronary angiography were included.

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This research investigates the application of machine learning to improve the diagnosis of tinnitus using high-frequency audiometry data. A Logistic Regression (LR) model was developed alongside an Artificial Neural Network (ANN) and various baseline classifiers to identify the most effective approach for classifying tinnitus presence. The methodology encompassed data preprocessing, feature extraction focused on point detection, and rigorous model evaluation through performance metrics including accuracy, Area Under the ROC Curve (AUC), precision, recall, and F1 scores.

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Background: Vibration is one of the harmful factors for forklift drivers. The use of non- standard seats and not paying attention to how the seats are maintained can be affected by the amount of vibration transmitted to the person.

Objective: This study investigates the amount of vibration transmitted from the forklift and the effect of different types of polyurethane foam in reducing the vibration transmitted from the forklift seat.

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Background: Acute pulmonary embolism (PE) is a critical medical emergency that necessitates prompt identification and intervention. Accurate prognostication of early mortality is vital for recognizing patients at elevated risk for unfavourable outcomes and administering suitable therapy. Machine learning (ML) algorithms hold promise for enhancing the precision of early mortality prediction in PE patients.

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