Mary P. Chang

Mary P. Chang

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article


Mary P. Chang has a total of 24 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Examining patient trust towards physicians between clinical departments in a Chinese hospital

    by Judy Yang, Yuanzheng Lu, Xiaoxing Liao, Mary P. Chang

    The purpose of this cross-sectional survey study is to quantitatively examine the differences in patient trust towards physicians between four different clinical departments in a Chinese hospital. Using a validated modified Chinese version of the Wake Forest Physician Trust Scale, we measured patient trust in each department, and also collected data on patient demographics. A total of 436 patients or family members were surveyed in the departments of emergency medicine, pediatrics, cardiology, and orthopedic surgery. Significant differences were found between the departments, especially between pediatrics (trust score 43.23, range 11–50) and emergency medicine and cardiology (trust scores 45.29 and 45.79, respectively with range of 11–50). The average total score across all four departments was 44.72. There are indications that specifically comparing departments, such as patient demographics or department structure, could be helpful in tailoring patient care to improve physician-patient relationships.


  • Open Access

    Characterization of Pediatric Seizures in the Commonwealth of the Northern Mariana Islands

    by Ahana Yogesh, Michael Taylor, Mary P. Chang

    Saipan is a United States (US) territory Western Pacific island where little recent data exists regarding epidemiology, clinical presentation, and standard of care for pediatric seizures. This paper characterizes these features in Saipan’s pediatric population with comparisons to mainland US. This is a retrospective chart review of all pediatric patients with a history of seizures at the island’s only hospital and major private neurology clinic over a 10-year period. Variables regarding demographics, presentation, diagnosis, and treatment were collected. A total of 144 patients were included, with 101 patients diagnosed with febrile seizures and 31 patients diagnosed with non-febrile seizures. Age at first presentation peaked at 1 year old overall. The most common identified etiology of epilepsy was found to be hypoxic injury (39%), hemorrhagic injury (10%), cerebral malformation (6%), and brain mass (6%). Simple versus complex classification of febrile seizures, etiologies, and first-line treatment for non-febrile seizures were comparable to the mainland US. Electroencephalogram (EEG) was not used consistently in diagnosis. The findings from this study demonstrate that clinical presentations of pediatric seizures in Saipan are comparable to those in the mainland US.


  • Possible Missed Acute Coronary Syndrome Rate in North Texas: Is There Room to Improve?

    by Mary P. Chang, Rebecca Md Vigen, Sushma Sharma, Deborah B. Md Diercks

    Background: Acute coronary syndrome (ACS) is a common diagnosis in the emergency department (ED). Missing this diagnosis may lead to increased morbidity or mortality. With improved cardiac biomarkers tests, it is unknown if that has decreased the prevalence of ACS diagnoses in ED patients who were recently evaluated in the ED. Methods: This is a retrospective review of ED patients who were diagnosed with ACS and seen in the ED 7 and 30 days before that visit in North Texas between 2009 and 2015. The demographics and temporal trends of missed ACS rates are described. Logistic regression was used to evaluate if any factors (ie, age, ethnicity, sex, insurance status) were significant. Results: Between December 26, 2008 and June 29, 2015, there were 24,914 diagnoses of ACS in the ED. The overall prevalence of patients diagnosed with ACS 7 days after their ED visit was 3.2% and 8.8% at 30 days. For patients diagnosed with ACS 7 days and 30 days after an ED visit, the most common initial ED diagnoses were nonspecific chest pain (57.7%), atherosclerotic disease (19.5%), and heart failure (12.8%). Between 2009 and 2015, there was no overall change in the rate of ACS diagnoses in patients seen 7 or 30 days before an ED visit. Conclusions: The prevalence of missed ACS in the North Texas region at 7 and 30 days after the initial ED visit is low and has not changed over the past several years.


  • Association of ventilation with outcomes from out-of-hospital cardiac arrest

    by Mary P. Chang, Yuanzheng Lu, Brian Leroux, Elisabete Aramendi Ecenarro, Pamela Owens, Henry E. Wang, Ahamed H. Idris


  • Open Access

    Evaluation of a Neonatal Resuscitation Curriculum in Liberia

    by Mary P. Chang, Camila B. Walters, Carmelle Tsai, Deborah Aksamit, Francis Kateh, John Sampson

    Neonatal mortality in Africa is among the highest in the world. In Liberia, providers face significant challenges due to lack of resources, and providers in referral centers need to be prepared to appropriately provide neonatal resuscitation. A team of American Heart Association health care providers taught a two-day neonatal resuscitation curriculum designed for low-resource settings at a regional hospital in Liberia. The goal of this study was to evaluate if the curriculum improved knowledge and comfort in participation. The curriculum included simulations and was based on the Neonatal Resuscitation Protocol (NRP). Students learned newborn airway management, quality chest compression skills, and resuscitation interventions through lectures and manikin-based simulation sessions. Seventy-five participants were trained. There was a 63% increase in knowledge scores post training (p < 0.00001). Prior cardiopulmonary resuscitation (CPR) training, age, occupation, and pre-intervention test score did not have a significant effect on post-intervention knowledge test scores. The median provider comfort score improved from a 4 to 5 (p < 0.00001). Factors such as age, sex, prior NRP education, occupation, and post-intervention test scores did not have a significant effect on the post-intervention comfort level score. A modified NRP and manikin simulation-based curriculum may be an effective way of teaching health care providers in resource-limited settings. Training of providers in limited-resource settings could potentially help decrease neonatal mortality in Liberia. Modification of protocols is sometimes necessary and an important part of providing context-specific training. The results of this study have no direct relation to decreasing neonatal mortality until proven. A general resuscitation curriculum with modified NRP training may be effective, and further work should focus on the effect of such interventions on neonatal mortality rates in the region.


  • A novel educational outreach approach to teach Hands-Only Cardiopulmonary Resuscitation to the public

    by Mary P. Chang, Lana M. Gent, Merrilee Sweet, Jerry Potts, Jeral Ahtone, Ahamed H. Idris


  • Open Access

    Pediatric Mortality in a Rural Tertiary Care Center in Liberia

    by Carmelle Tsai, Camila B. Walters, John Sampson, Francis Kateh, Mary P. Chang

    Liberia is a low‐income country in West Africa that has faced significant challenges, including a civil war and the recent Ebola epidemic. Little data exists on the more current post‐war and pre‐Ebola trends of child health in Liberia in the rural setting. This study is a retrospective chart review of pediatric mortality in 2013 at a rural tertiary care center in Liberia, 10 years post‐war. From January 2013 to December 2013, there were 50 pediatric deaths, or 5.4% of the 920 total pediatric admissions. The most common cause of neonatal death was sepsis, and the most common cause of death under five years of age was malaria. The majority (82.0%) of the deaths were in children under five. Pediatric mortality at this hospital was similar to other reported mortality six years post‐war, and lower than that reported immediately post‐war. Neonatal sepsis and malaria are two significant causes of pediatric mortality in this community and, therefore, further efforts to decrease childhood mortality should focus on these causes.