Validation of Brain Injury Guidelines in the Elderly Trauma Patient Presenting at a Level Two Trauma Center.

Retrospective analysis, validating the brain injury guideline (BIG) in the management of traumatic head injury in our level II trauma center after implementation of the protocol, and compare the outcomes to those seen before the protocol, of 542 patients seen in the Emergency Department (ED), with head injury between 2017 and 2021 was completed. Those patients were divided into two groups: Group 1 (pre BIG protocol implementation) and Group 2 (post BIG protocol implementation). Data included age, race, length of stay (hospital and ICU), comorbid conditions, anticoagulant therapy, surgical intervention, GCS, ISS, findings of head CT and any subsequent progression, mortality, and readmission within one month. Student's t-test and Chi-square test were used for statistical analysis. There were 314 patients in group 1 and 228 patients in group 2. Mean age of group 2 was significantly higher than group 1 (67 vs 59 years, p=0.0001), however their gender was similar. Data available on 526 patients were classified as BIG 1=122, BIG 2=73, and BIG 3=331 patients. Post-implementation group were older (70 vs 44 years, P=0.0001) with more females (67% vs 45%, P=0.05) and had significantly more than 4 comorbid conditions (29% vs 8%, P=0.004), with the majority presented with a size of 4 mm or less of acute subdural or subarachnoid hematoma. No patient in either group had progression of their neurological examination, neurosurgical intervention, or readmission.. Elderly trauma patients may benefit from implementation of BIG criteria protocol, thus reducing cost of patient care, however a larger sample size is needed.

Concordant and Discordant Cardiac Magnetic Resonance Imaging Delayed Hyperenhancement Patterns in Patients with Ischemic and Non-Ischemic Cardiomyopathy

BACKGROUND AND OBJECTIVES: The diagnosis of ischemic (ICM) and non-ischemic cardiomyopathy (NICM) is conventionally determined by the presence or absence of coronary artery disease (CAD) in the setting of a reduced left systolic function. However the presence of CAD may not always indicate that the actual left ventricular (LV) dysfunction mechanism is ischemia, as other non-ischemic etiologies can be responsible. We investigated patterns of myocardial fibrosis using delayed hyperenhancement (DHE) on cardiac magnetic resonance (CMR) in ICM and NICM. SUBJECTS AND METHODS: Patients with systolic heart failure who underwent a CMR were prospectively analyzed. The heart failure diagnosis was based on the modified Framingham criteria and LVEF <35%. LV dysfunction was classified as ICM or NICM based on coronary anatomy. RESULTS: A total of 101 subjects were analyzed; 34 were classified as ICM and 67 as NICM. The DHE pattern was concordant with the conventional diagnosis in 27 (79.4%) of the patients with ICM and 62 (92.5%) of the patients with NCIM. A discordant NICM DHE pattern was present in 8.8% of patients with ICM, and an ICM pattern was detected 6.0% of the patients with NICM. Furthermore, 11.8% of the patients with ICM and 1.5% of those with NICM demonstrated a mixed pattern. CONCLUSION: A subset of patients conventionally diagnosed with ICM or NICM based on coronary anatomy demonstrated a discordant or mixed DHE pattern. CMR-DHE imaging can be helpful to determine the etiology of heart failure in patients with persistent LV systolic dysfunction.