Diaphragmatic Injuries among Severely Injured Patients (ISS ≥ 16)-An Indicator of Injury Pattern and Severity of Abdominal Trauma

The effect of a new in-hospital trauma care model on the outcomes of severely injured trauma patients in the emergency department: a retrospective observational study in China

BACKGROUND

The mortality and disability rates among severely injured trauma patients are very high. This study aimed to investigate whether a new in-hospital trauma care model can improve emergency care efficiency and enhance the prognosis of severely injured trauma patients.

METHODS

This retrospective observational study included 366 severely injured trauma patients (ISS ≥ 16) who were admitted to the emergency department of a tertiary hospital between 2023 and 2024. Based on the emergency care model used, patients were divided into the traditional model group (n = 213) from January to April 2023 and the new model group (n = 153) from January to April 2024. The general clinical data, prognosis information, as well as seven emergency quality control indicators for both groups were collected and analyzed.

RESULTS

The study included 270 male patients (73.8%) and 96 female patients (26.2%), with a mean age of 56 (44, 69) years. No significant differences were found between the two groups regarding gender, age, time since injury, mechanism of injury, and vital signs upon admission (P > 0.05). The new model group had significantly shorter times for establishing effective circulation access (15.66 ± 3.36 vs. 9.44 ± 3.18 min), establishing an artificial airway (36.90 ± 12.23 vs. 23.91 ± 9.07 min), preparing blood transfusion (48.84 ± 5.73 vs. 31.0 ± 64.67 min), completing whole-body CT scans (57.18 ± 8.26 vs. 42.17 ± 7.28 min), and developing a definitive treatment plan (77.45 ± 6.26 vs. 56.50 ± 6.35 min) compared to the traditional model group. Additionally, the new model group had a significantly higher rate of bedside FAST completion (92.8% vs. 53.1%) and a higher success rate of resuscitation within the first hour (70.9% vs. 85.0%) than the traditional model group. Regarding prognosis, the new model group had a lower overall in-hospital mortality rate (12.1% vs. 5.9%) and a lower incidence of complications such as DIC and ARDS (23.9% vs. 9.2%, all P < 0.05).

CONCLUSION

The new in-hospital trauma care model significantly enhanced the in-hospital emergency care efficiency, reduced in-hospital mortality, and decreased the incidence of complications for severely injured patients, which may serve as a useful reference for developing countries in similar settings.

CLINICAL TRIAL NUMBER

Not applicable.

Characteristics, outcomes, and prognostic factors in patients with penetrating and blunt traumatic diaphragmatic injury: a nationwide retrospective cohort study in Japan

BACKGROUND

Traumatic diaphragmatic injury (TDI) is well-known worldwide as rare and life-threatening. However, because no nationwide cohort study of penetrating and blunt TDI has been conducted in Japan and other countries where penetrating trauma is relatively uncommon, the clinical characteristics of all TDI are unknown. We aimed to describe the characteristics of TDI patients, compare penetrating TDI with blunt TDI, and identify mortality risk factors in Japan.

METHODS

We retrospectively identified TDI patients between 2004 and 2019 using data from the Japan Trauma Data Bank. We extracted data on patient demographics, type of trauma, cause of trauma, physiological parameters, region of concomitant injury, associated injury, and management. We compared penetrating and blunt TDI for each variable. The primary outcome was mortality. Multivariable logistic regression was performed to identify mortality risk factors.

RESULTS

Of the 338,744 patients, 1,147 (0.3%) had TDI, of which 771 were eligible for analysis (excluding 308 in cardiac arrest on arrival). Penetrating TDI represented 29.8% and blunt TDI 70.2%, and comparing penetrating and blunt TDI, the most common cause was self-inflicted (48.7%) vs. accident (85.6%), males were 68.7% vs. 66.0% of the patients (P = 0.50), and the mortality rate was 8.3% vs. 26.4% (P < 0.001). Multivariable analysis found that age (odds ratio [OR] 1.03, 95% confidence interval [CI] 1.01-1.04), Injury Severity Score (OR 1.03, 95%CI 1.006-1.06), Revised Trauma Score (OR 0.55, 95%CI 0.45-0.67), severe concomitant abdominal injury (OR 2.45, 95%CI 1.32-4.56), severe concomitant upper extremity injury (OR 3.38, 95%CI 1.24-9.17) were independent predictors of mortality, and computed tomography (CT) (OR 0.32, 95%CI 0.15-0.69) and diaphragm repair (OR 0.44, 95%CI 0.25-0.78) were protective factors.

CONCLUSIONS

In Japan, we found that penetrating TDI was mainly caused by self-injury and the male-female ratio was the same as for blunt TDI, although blunt TDI was much more frequent. TDI was considered highly lethal, with over 25% of patients in cardiac arrest on arrival. Our unique independent predictors were CT, severe concomitant abdominal injury, and severe concomitant upper extremity injury. These findings may help in the management of TDI in countries with less common penetrating trauma.

Incidence of Traumatic Diaphragmatic Injury: Results From a Retrospective Cohort Study in a Level I Trauma Center in Riyadh

Introduction Traumatic diaphragmatic injuries (TDIs) are uncommon and the incidence of TDI is difficult to estimate because of the variation in reporting missed or late detected diaphragmatic injuries. Therefore, our study's aim was to investigate the prevalence of traumatic diaphragmatic injury in the thoracoabdominal trauma, discuss the etiological factors, diagnostic investigations, and outcomes in TDIs, and evaluate predictors of mortality in patients who were diagnosed at King Abdulaziz Medical City in Riyadh, Saudi Arabia. Materials and methods This observational retrospective cohort study was conducted at King Abdulaziz Medical City (KAMC), a tertiary hospital in Riyadh, Saudi Arabia. The study included all adult patients aged 18 years or older diagnosed with traumatic diaphragmatic injuries between the years 2016 and 2020. The BESTCare electronic system was used to get the patient's medical records and extract the data. Pearson χ2 test was used for categorical variables, and an independent t-test was used for continuous variables to investigate the association between predictors and outcomes.  Results A total of eight patients were involved in this study. The mean age of the patients was 49 years old. Males outnumbered females by 75%. Patients admitted with blunt injuries were greater by 75% compared to penetrating injuries by 25%. The left side of the diaphragm was the most common site of injury. The total number of patients who were admitted to the ICU was five, four of whom had blunt trauma and one had a penetrating injury. Conclusion The demographic data of the patients included in this study corresponded to that in the literature. Although not reaching a statistically significant level, ICU admissions and mortality were mostly associated with blunt injuries. Larger multi-center studies are required to further investigate the incidence of traumatic diaphragmatic injuries (TDI).