Publications by authors named "Shirali G"

Background: A dilated native right ventricular outflow tract (RVOT) presents unique challenges for transcatheter management using balloon-expandable valves. The Alterra Adaptive Prestent was designed to expand transcatheter therapy to treat patients with dilated RVOTs.

Objectives: The aim of this study was to report 2-year outcomes of the main cohort of the ALTERRA (Multicenter Study of Congenital Pulmonic Valve Dysfunction Studying the SAPIEN 3 THV With the Alterra Adaptive Prestent) pivotal trial using the prestent with transcatheter pulmonary valve replacement.

View Article and Find Full Text PDF

Background: Despite improvements in survival over time, the mortality rate for infants with single-ventricle heart disease remains high. Infants of low socioeconomic status (SES) are particularly vulnerable. We sought to determine whether use of a novel remote monitoring program, the Cardiac High Acuity Monitoring Program, mitigates differences in outcomes by SES.

View Article and Find Full Text PDF

Background: Assessment of maximal oxygen consumption is important in both general community and occupational settings. Validity and reliability tests are needed to indicate the functionality of the cardiopulmonary system.

Objective: This study aimed to establish a maximal oxygen consumption (VO2max) prediction model using anthropometric and demographic variables for young adults in Iran.

View Article and Find Full Text PDF

Significant pulmonary regurgitation (PR) and pulmonary stenosis are common after surgical repair of some congenital heart defects. This prospective, single-arm, multicenter trial enrolled patients who underwent transcatheter heart valve (THV) implantation with a SAPIEN 3 valve to treat dysfunctional right ventricular outflow tract (RVOT) conduits or pulmonic surgical valves (≥ moderate PR and/or mean RVOT gradient ≥35 mm Hg). The primary end point was a nonhierarchical composite of THV dysfunction at 1 year comprising RVOT reintervention, ≥ moderate total PR, and mean RVOT gradient >40 mm Hg.

View Article and Find Full Text PDF

Background And Objective: The Residual Lesion Score is a novel tool for assessing the achievement of surgical objectives in congenital heart surgery based on widely available clinical and echocardiographic characteristics. This article describes the methodology used to develop the Residual Lesion Score from the previously developed Technical Performance Score for five common congenital cardiac procedures using the RAND Delphi methodology.

Methods: A panel of 11 experts from the field of paediatric and congenital cardiology and cardiac surgery, 2 co-chairs, and a consultant were assembled to review and comment on validity and feasibility of measuring the sub-components of intraoperative and discharge Residual Lesion Score for five congenital cardiac procedures.

View Article and Find Full Text PDF

Background: Musculoskeletal disorders are one of the main health problems found in date palm farmers. This study aimed to assess a new climbing device on working postures, musculoskeletal symptoms, and fatigue in date palm farmers.

Methods: Data were collected using questionnaires (Standardised Nordic Musculoskeletal Questionnaire, Multidimensional Fatigue Inventory, and System Usability Scale) and direct observations of the postures (using the Rapid Entire Body Assessment method [REBA]) from 70 date palm farmers during operating the traditional and new climbing devices.

View Article and Find Full Text PDF

Background: Many countries have recommended using face masks for the general population in public places to reduce the risk of COVID-19 transmission. This study aimed to assess the effects of socioeconomic status on face mask use among pedestrians during the COVID-19 pandemic.

Methods: This cross-sectional study was conducted in Ahvaz, southwest Iran in August 2020.

View Article and Find Full Text PDF

Frailty is a multi-dimensional clinical syndrome that is associated with increased morbidity and mortality and decreased quality of life. Children/adolescents with heart disease (HD) perform significantly worse for each frailty domain compared to non-HD peers. Our study aimed to create a composite frailty score (CFS) that can be applied to children/adolescents with HD and evaluate associations between the CFS and outcomes.

View Article and Find Full Text PDF

Introduction: Children with a single ventricle post-Fontan palliation are at increased risk of poor outcomes with peak oxygen consumption acting as a surrogate outcome marker. The purpose of this study is to evaluate the relationship between peak oxygen consumption and echocardiographic measures of ventricular function and deformation, including ventricular global longitudinal strain and dyssynchrony, in children and adolescents following Fontan palliation.

Methods: Patients (age 8-21 years) with single ventricle post-Fontan palliation were prospectively recruited and participated in an echocardiogram, including views optimised for two-dimensional speckle tracking, and a cardiopulmonary exercise test on a cycle ergometer to maximal volitional fatigue.

View Article and Find Full Text PDF

Background: The metabolic syndrome is a complex of interdependent risk factors for cardiovascular disease and diabetes. Shift work might have an impact on metabolic variables, and be a risk factor for type 2 diabetes. To date, only few studies have been done on the prevalence of MetS in industrial work environments in Iran, and most of them have been conducted on a small sample size.

View Article and Find Full Text PDF

Background: The COVID-19 pandemic has created a wide range of sociocultural pressures on nurses. Resilience is defined as one's ability to adapt to an unpredictable situation and it can be a factor in accepting an undesirable psychosocial situation.

Objective: The aim of the present study was to examine resilience in nurses in the face of job stress during the COVID-19 pandemic.

View Article and Find Full Text PDF

Background Our Cardiac High Acuity Monitoring Program (CHAMP) uses home video telemetry (HVT) as an adjunct to monitor infants with single ventricle during the interstage period. This study describes the development of an objective early warning score using HVT, for identification of infants with single ventricle at risk for clinical deterioration and unplanned hospital admissions (UHA). Methods and Results Six candidate scoring parameters were selected to develop a pragmatic score for routine evaluation of HVT during the interstage period.

View Article and Find Full Text PDF

Water reservoirs are considered very important storage facilities for the condition of peak demand in the agriculture industry. The construction process of a water reservoir may be accompanied by multiple risks. This study is aimed at identifying the emerging risks resulting from variability in different functions and at prioritizing them based on the analytical hierarchy process (AHP) method.

View Article and Find Full Text PDF

Background: Many countries have recommended the use of face masks for general population in public places to reduce the risk of COVID-19 transmission. This study aims to estimate the prevalence of face mask usage and investigate about different types of face mask and their distribution among pedestrians in southwest Iran during the Covid-19 pandemic.

Methods: This cross-sectional study was conducted in August 2020 in Ahvaz, southwest Iran.

View Article and Find Full Text PDF

Background: This study aimed to investigate the relationship between safety attitudes and safety performance considering the mediating role of safety climate in the petrochemical industry.

Method: The statistical population of this study included all 1700 employees in the petrochemical industry of Iran, among whom 320 were randomly selected as the participants and completed the research questionnaire. Then, the validity (content, convergent, and divergent) and reliability (Cronbach's alpha and composite reliability) of the instrument were examined, and the research hypotheses were tested using Smart partial least squares (PLS) software.

View Article and Find Full Text PDF

Objectives: The aim of this study was to demonstrate the safety and functionality of the Alterra Adaptive Prestent and SAPIEN 3 transcatheter heart valve (THV) in patients with dysfunctional, dilated right ventricular outflow tract (RVOT) greater or equal to moderate pulmonary regurgitation (PR).

Background: Significant variations in the size and morphology of the RVOT affect the placement of transcatheter pulmonary valves. The Alterra Prestent internally reduces and reconfigures the RVOT, providing a stable landing zone for the 29-mm SAPIEN 3 THV.

View Article and Find Full Text PDF

Purpose: To quantify the differences in daily physical activity (PA) patterns, intensity-specific volumes, and PA bouts in youth with and without heart disease (HD).

Methods: Seven-day PA was measured on children/adolescents with HD (n = 34; median age 12.4 y; 61.

View Article and Find Full Text PDF

This scientific statement summarizes the current state of knowledge related to interstage home monitoring for infants with shunt-dependent single ventricle heart disease. Historically, the interstage period has been defined as the time of discharge from the initial palliative procedure to the time of second stage palliation. High mortality rates during the interstage period led to the implementation of in-home surveillance strategies to detect physiologic changes that may precede hemodynamic decompensation in interstage infants with single ventricle heart disease.

View Article and Find Full Text PDF

Children and adolescents with cardiac disease (CCD) have significant morbidity and lower quality of life. However, there are no broadly applicable tools similar to the frailty score as described in the elderly, to define functional phenotype in terms of physical capability and psychosocial wellbeing in CCD. The purpose of this study is to investigate the domains of the frailty in CCD.

View Article and Find Full Text PDF

Background: Heat stress is common among workers in hot-dry areas. To take preventive strategies for the protection of workers against heat stress, it is important to choose a suitable index that can accurately explain environmental parameters relative to physiological responses.

Objective: To evaluate heat stress and maximum acceptable work time (MAWT) based on physiological and environmental response in hot-dry climate among traditional bakers.

View Article and Find Full Text PDF

Resilience engineering (RE) is a new approach to upgrade safety management systems. Due to its novelty in the field of safety, RE seems to be promising in providing good indicators to assess priorities in organizational strengths/weaknesses while planning to promote safety within organizations. Several methods have been recently developed to evaluate REperformance.

View Article and Find Full Text PDF

Background: While echocardiographic parameters are used to quantify ventricular function in infants with single ventricle physiology, there are few data comparing these to invasive measurements. This study correlates echocardiographic measures of diastolic function with ventricular end-diastolic pressure in infants with single ventricle physiology prior to superior cavopulmonary anastomosis.

Methods: Data from 173 patients enrolled in the Pediatric Heart Network Infant Single Ventricle enalapril trial were analysed.

View Article and Find Full Text PDF

Background: Cognitive Reliability and Error Analysis Method (CREAM), as one of the second-generation methods, has been developed to overcome the shortcomings of the first-generation human reliability analysis methods. Although it is a useful tool for assessing the effects of context on human failure probability, namely common performance conditions (CPCs), there still exist some problems, such as lack of data about CPCs, and their unclear relationship with the operator control mode.

Objective: The current paper aimed at applying CREAM Bayesian Network BN) in a real-world situation in order to identify the limitations associated to CPCs in estimating Human Error Probability (HEP).

View Article and Find Full Text PDF