HHHalim Hennes

Halim Hennes

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Previous Organizations / Institutes

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Halim Hennes has a total of 224 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Suicide attempt management among Turkish and American adolescents: A comparison of two pediatric emergency departments

    by Ali̇ Yurtseven, Caner Turan, Deborah Mary Ort, Mehrin Islam, Sezen Köse, Eylem Ulaş Saz, Hali̇m Hennes

    Background/aim: Suicide is one of the leading causes of death among adolescents. This study aimed to compare the characteristics and short-term outcomes of Turkish and American adolescents with suicide attempts and determine the differences in management and resource utilization between two pediatric emergency departments; one in Türkiye and one in the United States of America. Materials and methods: Adolescents who presented to the emergency departments with a chief complaint of suicide attempt between October 2017 and September 2018 were eligible for including in the study. Characteristics and other information of 217 (131 American and 86 Turkish) suicide attempter adolescents were retrieved from medical records. Outcome was defined as re-admission to the emergency department for another suicide attempt within 3 months of the index visit. Results: Overall, 78% of adolescents were female. Abuse history (physical/sexual) was more common among American adolescents (p = 0.005), whereas uncontrolled psychiatric diseases were more evident in Turkish cases (p < 0.001). Social worker assessment and hospitalization rates were significantly lower, with shorter mean duration of follow-up in the emergency department among Turkish compared to American adolescents (respectively, p < 0.001, p < 0.001 and p = 0.002). Repeated suicide attempts within three months were significantly higher in the Turkish group compared to the American one (29% vs. 8%, p < 0.001). Receiving a social worker assessment, hospitalization and longer observation in emergency department reduced the incidence of repeated suicide attempts (respectively, p < 0.001, p = 0.003 and p = 0.012). Conclusion: Turkish adolescents had shorter observation time in the emergency department, received fewer assessment by social workers and were less likely to be hospitalized. These may have contributed to the higher rate of repeat suicide attempts following discharge from the emergency department. Adequate resources are needed to help decrease the burden of suicide among Turkish adolescents.


  • Abusive Injuries Are Worse Than Vehicular Injuries

    by Brian D. Robertson, Marisa Abbe, Jamie Pelletier, Halim Hennes

    The objective of this study was to compare the injury severity and outcome of motor vehicle and nonaccidental traumatic injuries and examine trends in mortality rates over time. We reviewed data from 2005 to 2013 from a level 1 pediatric trauma center including demographics, injury severity, and outcomes. Primary outcomes of interest were mortality rates and hospital length of stay. Injury severity scores were significantly worse for nonaccidental traumas (NATs) (P < 0.001) compared with motor vehicle collisions and motor pedestrian collisions. Nonaccidental traumas were also found to have significantly longer length of stay and higher fatality rates (P < 0.001). Significant differences were also found for the types of injuries sustained for head, extremity, trunk, and other injuries (P < 0.001), and for internal injuries (P < 0.01. Admission rates also dropped for both motor vehicle collisions and motor pedestrian collisions across the 9-year period (P < 0.001) but remained stable for NATs. In this study population, more severe injuries, higher mortality rates, and longer hospital stays were observed in pediatric NAT compared with those sustained through vehicular means. Furthermore, we observed statistically significant declines in motor vehicle–related injuries compared with NAT.


  • Prospective Evaluation of Predictors of Testis Atrophy After Surgery for Testis Torsion in Children

    by Gwen M. Grimsby, Bruce J. Schlomer, Vani S. Menon, Lauren Ostrov, Melise Keays, Kunj R. Sheth, Carlos Villanueva, Candace Granberg, Daniel Dajusta, Martinez Hill, et al.


  • Straight to the Operating Room: An Emergent Surgery Track for Acute Testicular Torsion Transfers

    by Michelle K. Arevalo, Kunj R. Sheth, Vani S. Menon, Lauren Ostrov, Halim Hennes, Nirmish Singla, Korgun Koral, Bruce J. Schlomer, Linda A. Baker


  • Dallas MegaShelter Medical Operations Response to Hurricane Harvey

    by E. Liang Liu, Brandon Morshedi, Brian L. Miller, Ronna Miller, S. Marshal Isaacs, Raymond L. Fowler, Wendy Chung, Ruby Blum, Breanne Ward, John Carlo, et al.

    On August 25, 2017, Hurricane Harvey made landfall near Corpus Christi, Texas. The ensuing unprecedented flooding throughout the Texas coastal region affected millions of individuals.1 The statewide response in Texas included the sheltering of thousands of individuals at considerable distances from their homes. The Dallas area established large-scale general population sheltering as the number of evacuees to the area began to amass. Historically, the Dallas area is one familiar with “mega-sheltering,” beginning with the response to Hurricane Katrina in 2005.2 Through continued efforts and development, the Dallas area had been readying a plan for the largest general population shelter in Texas. (Disaster Med Public Health Preparedness. 2019;13:33–37)


  • A Prospective Evaluation of the Accuracy of Weight Estimation Using the Broselow Tape in Overweight and Obese Pediatric Patients in the Emergency Department

    by Dennis Tanner, Ashley Negaard, Rong Huang, Neil Evans, Halim Hennes

    Objectives: The aims of the study were to examine the predictive accuracy of Broselow tape (BT) weight estimation and body mass index–based weight categorization in overweight and obese pediatric patients and to develop an adjustment factor that improves the BT weight estimate in overweight and obese pediatric patients. Methods: A prospective observational study was conducted. We enrolled noncritical pediatric patients presenting to a tertiary care pediatric emergency department with nonurgent complaints. Patients had their weights, heights, abdominal circumferences, and actual BT measurements documented by research staff. Results: One hundred seventy-eight patients aged 2 to 18 years were enrolled. Using the Centers for Disease Control and Prevention's definition of body mass index classification, 71 patients (39.89%) had normal BMI, 43 patients (24.16%) were overweight, and 64 patients (35.96%) were obese. The accuracy of the BT-estimated weight range, compared with the actual weight, is 40.5% in our study population. When stratified by BMI classification, the accuracy proportions were the following: 71.8% for normal, 41.9% for overweight, and 4.7% for obese patients. The adjustment formula ([0.014 × waistline in cm + 0.3] × BT weight) improved overall weight estimation from 40.5% to 65.2%. The greatest improvement was noted in obese children, where the BT accuracy improved from 4.7% to 59.4%. Conclusions: The growing pediatric obesity epidemic has challenged the BT's ability to accurately estimate the weights in overweight and obese pediatric patients. Our study demonstrated inverse relationship between the accuracy of BT and body weight. An adjustment factor significantly improved BT accuracy in obese children.


  • The Evaluation of Trauma Care

    by Alkan Bal, Michael Cooper, Amanda Lee, Murat Anil, Halim Hennes

    The purpose of the study is to compare the outcomes of pediatric trauma patients with motor vehicle crashes (MVCs) and motor vehicle versus pedestrian crashes (MPCs) at a level 1 pediatric trauma center in the United States and a pediatric trauma center in Turkey. The medical records of all pediatric MVC and MPC subjects presenting to the emergency departments (EDs) of a level 3 hospital in Turkey (Izmir Tepecik Training and Research Hospital [ITTRH]) and a level 1 pediatric trauma center in the United States (Children's Medical Center Dallas [CMCD]) over a 1-year period were reviewed. Data that were collected include patient demographics, prehospital report (mechanism of injury, mode of transportation), injury severity score (ISS), abbreviated injury scale score, Glasgow Coma Scale score, ED length of stay, ED interventions, ED and hospital disposition, and mortality. Patients with moderate (ISS, 5–15) and severe (ISS, >15) trauma scores were included in the study. One hundred six patient charts from the ITTRH and 125 patient charts from the CMCD with moderate and severe ISS due to MVCs and MPCs were reviewed. Most of the patients were pedestrians (86%) in the ITTRH group and passengers (60%) in the CMCD group. The percentage of patients transferred by ambulance (ground or air) to the CMCD and the ITTRH was 97.9% and 85%, respectively. Fifteen percent of ITTRH patients and 2.1% of CMCD patients arrived by private vehicle. Emergency department arrival ISS and Glasgow Coma Scale were similar between the 2 hospitals (P > 0.05). The overall mortality rate in the study population was 8.8% (11/125) at the CMCD and 4.7% (5/106) at the ITTRH. (P = 0.223). Blood product utilization was significantly higher in the CMCD group compared with the ITTRH group (P = 0.005). The use of hypertonic saline/mannitol/hyperventilation in patients with significant head trauma and increased intracranial pressure was higher in the ITTRH group (P = 0.000). This is the first study that compared pediatric trauma care and outcome at a level 1 pediatric trauma center in the United States and a pediatric hospital in Turkey. Our findings highlight the opportunities to improve pediatric trauma care in Turkey. Specifically, there is a need for national trauma registries, enhanced trauma education, and standardized trauma patient care protocols. In addition, efforts should be directed toward improving prehospital care through better integration within the health care system and physician participation in educating prehospital providers. Data and organized trauma care will be instrumental in system-wide improvement and developing appropriate injury-prevention strategies.


  • Transscrotal Near Infrared Spectroscopy as a Diagnostic Test for Testis Torsion in Pediatric Acute Scrotum: A Prospective Comparison to Gold Standard Diagnostic Test Study

    by Bruce J. Schlomer, Melise A. Keays, Gwen M. Grimsby, Candace F. Granberg, Daniel G. DaJusta, Vani S. Menon, Lauren Ostrov, Kunj R. Sheth, Martinez Hill, Emma J. Sanchez, et al.

    A rapid test for testicular torsion in children may obviate the delay for testicular ultrasound. In this study we assessed testicular tissue percent oxygen saturation (%StO2) measured by transscrotal near infrared spectroscopy as a diagnostic test for pediatric testicular torsion. This was a prospective comparison to a gold standard diagnostic test study that evaluated near infrared spectroscopy %StO2 readings to diagnose testicular torsion. The gold standard for torsion diagnosis was standard clinical care. From 2013 to 2015 males with acute scrotum for more than 1 month and who were less than 18 years old were recruited. Near infrared spectroscopy %StO2 readings were obtained for affected and unaffected testes. Near infrared spectroscopy Δ%StO2 was calculated as unaffected minus affected reading. The utility of near infrared spectroscopy Δ%StO2 to diagnose testis torsion was described with ROC curves. Of 154 eligible patients 121 had near infrared spectroscopy readings. Median near infrared spectroscopy Δ%StO2 in the 36 patients with torsion was 2.0 (IQR -4.2 to 9.8) vs -1.7 (IQR -8.7 to 2.0) in the 85 without torsion (p=0.004). AUC for near infrared spectroscopy as a diagnostic test was 0.66 (95% CI 0.55-0.78). Near infrared spectroscopy Δ%StO2 of 20 or greater had a positive predictive value of 100% and a sensitivity of 22.2%. Tanner stage 3-5 cases without scrotal edema or with pain for 12 hours or less had an AUC of 0.91 (95% CI 0.86-1.0) and 0.80 (95% CI 0.62-0.99), respectively. In all children near infrared spectroscopy readings had limited utility in diagnosing torsion. However, in Tanner 3-5 cases without scrotal edema or with pain 12 hours or less, near infrared spectroscopy discriminated well between torsion and nontorsion.