Lynn Gries

The acute care surgery model: Managing traumatic brain injury without an inpatient neurosurgical consultation

BACKGROUND Neurosurgical services are a limited resource and effective use of them would improve the health care system. Acute care surgeons (ACS) are accustomed to treating mild traumatic brain injury (TBI) including those with minor radiographic intracranial injuries. We hypothesized that ACS safely manage mild TBI with intracranial hemorrhage (ICH) on head computed tomographic (CT) scan without neurosurgical consultation (NC). METHODS We performed a retrospective analysis on all TBI patients with positive findings on head CT scan managed without NC during a 2-year period. Propensity scoring matched NC to no-NC patients on a 1:2 ratio for Glasgow Coma Scale (GCS) score, head Abbreviated Injury Scale (h-AIS) score, neurological examination, age, Injury Severity Score (ISS), findings of initial head CT scan including type and size of ICH. RESULTS A total of 270 patients with mild TBI and positive CT scan findings were included (90 with NC and 180 without NC). Sixty-three percent were male, and mean (SD) age was 39 (25) years. The median GCS was 15 (13–15), and the h-AIS score was 2 (1–3). In both groups, there was no neurosurgical intervention, in-hospital mortality, or 30-day readmission. In the no-NC group, 8% of the patients had postdischarge emergency department (ED) visits compared with 4% of the NC group (p = 0.5). All patients with postdischarge ED visits in both groups were discharged home from the ED. CONCLUSION ACS can manage mild TBI with ICH without obtaining an inpatient NC. Further guidelines should be established to help identify which patients meet criteria to be safely managed without NC. LEVEL OF EVIDENCE Care management/therapeutic study, level IV.

Certified acute care surgery programs improve outcomes in patients undergoing emergency surgery: A nationwide analysis.

BACKGROUND Differences in outcomes among trauma centers (TCs) and non-TCs (NTCs) in patients undergoing emergency general surgery (EGS) are well established. However; the impact of development of certified acute care surgery (ACS) programs on patient outcomes remains unknown. The aim of this study was to evaluate outcomes in patients undergoing EGS across TCs, NTCs, and TCs with ACS (ACS-TC). METHODS National estimates for EGS procedures were abstracted from the National Inpatient Sample database. Patients undergoing emergent procedures (appendectomy, cholecystectomy, hernia repair, as well as small and large bowel resections) were included. TCs were identified based on American College of Surgeons’ verification. ACS-TC programs were recorded from the American Association for the Surgery of Trauma. Outcome measures were hospital length of stay, complications, and mortality. Regression analysis was performed after adjusting for age, sex, race, Charlson comorbidity index, and type of procedure. RESULTS A total of 131,410 patients undergoing EGS were analyzed. Patients managed in ACS-TCs had shorter hospital stay (p = 0.045) and lower complication rate (p = 0.041) compared with patients managed in both TCs and NTCs. There was no difference in mortality in patients managed across the groups; however, there was a trend toward lower mortality in patients managed in ACS-TCs in comparison with TCs (p = 0.064) and NTCs (p = 0.089). The overall hospital costs were lower for patients managed in ACS-TCs compared with TCs (p = 0.036). CONCLUSION TCs with ACS have improved outcomes in EGS procedures compared with both TCs and non-TCs. ACS training with the associated infrastructure standards may contribute to these improved outcomes. LEVEL OF EVIDENCE Therapeutic/care management study, level IV.

Randomized clinical trial of pigtail catheter versus chest tube in injured patients with uncomplicated traumatic pneumothorax

Small pigtail catheters appear to work as well as the traditional large‐bore chest tubes in patients with traumatic pneumothorax, but it is not known whether the smaller pigtail catheters are associated with less tube‐site pain. This study was conducted to compare tube‐site pain following pigtail catheter or chest tube insertion in patients with uncomplicated traumatic pneumothorax.

Overuse of helicopter transport in the minimally injured: A health care system problem that should be corrected

BACKGROUND Mortality benefit has been demonstrated for trauma patients transported via helicopter but at great cost. This study identified patients who did not benefit from helicopter transport to our facility and demonstrates potential cost savings when transported instead by ground. METHODS We performed a 6-year (2007–2013) retrospective analysis of all trauma patients presenting to our center. Patients with a known mode of transfer were included in the study. Patients with missing data and those who were dead on arrival were excluded from the study. Patients were then dichotomized into helicopter transfer and ground transfer groups. A subanalysis was performed between minimally injured patients (ISS < 5) in both the groups after propensity score matching for demographics, injury severity parameters, and admission vital parameters. Groups were then compared for hospital and emergency department length of stay, early discharge, and mortality. RESULTS Of 5,202 transferred patients, 18.9% (981) were transferred via helicopter and 76.7% (3,992) were transferred via ground transport. Helicopter-transferred patients had longer hospital (p = 0.001) and intensive care unit (p = 0.001) stays. There was no difference in mortality between the groups (p = 0.6). On subanalysis of minimally injured patients there was no difference in hospital length of stay (p = 0.1) and early discharge (p = 0.6) between the helicopter transfer and ground transfer group. Average helicopter transfer cost at our center was

Time and cost analysis of gallbladder surgery under the acute care surgery model

18,000, totaling

Mild traumatic brain injury defined by Glasgow Coma Scale: Is it really mild?

4,860,000 for 270 minimally injured helicopter-transferred patients. CONCLUSION Nearly one third of patients transported by helicopter were minimally injured. Policies to identify patients who do not benefit from helicopter transport should be developed. Significant reduction in transport cost can be made by judicious selection of patients. Education to physicians calling for transport and identification of alternate means of transportation would be both safe and financially beneficial to our system. LEVEL OF EVIDENCE Epidemiologic study, level III. Therapeutic study, level IV.

14 French pigtail catheters placed by surgeons to drain blood on trauma patients: Is 14-Fr too small?

BACKGROUND The acute care surgery (ACS) model has been shown to improve work flow efficiency and to reduce hospital stay. We hypothesized that, in patients with gallbladder (GB) disease who were admitted through our emergency department (ED) and then underwent surgery, the ACS model shortened the time to surgery, decreased the length of hospital stay, and reduced hospital costs. METHODS We retrospectively queried our GB surgery practice records for 2008 (before the establishment of the ACS model at our institution in 2009). We then performed time and cost comparison with our prospectively maintained GB surgery practice database for 2010. We excluded any inpatient GB surgeries and any GB surgeries that were performed for choledocholithiasis and acute pancreatitis. RESULTS Our study was composed of 94 patients from the pre-ACS period (2008) and 234 patients from the ACS period (2010). Patients’ baseline characteristics were similar between the two periods, except for a higher percentage of females in the ACS period (77% vs. 66%, p = 0.04). Approximately one third of patients from both periods had acute cholecystitis. In the ACS period, the mean time to surgery, that is, from ED arrival to operating room arrival, was shorter (20.8 [13.8] hours vs. 25.7 [16.2] hours, p = 0.007); more patients underwent surgery within 24 hours after ED arrival (75% vs. 59%, p = 0.004); and more patients underwent surgery between 12:00 midnight and 7:00 AM (25% vs. 6.4%, p < 0.001). As a result, hospital length of stay was 1.4 days shorter in the ACS period, with cost saving per patient of approximately

Secondary brain injury in trauma patients: The effects of remote ischemic conditioning

1,000. CONCLUSION We found that implementation of ACS model led to benefits for patients who came to our ED with GB disease, including shorter time to surgery, shorter hospital stay, and decreased hospital costs. The ACS model benefits the health care system. LEVEL OF EVIDENCE Therapeutic study, level IV.

A critical analysis of secondary overtriage to a Level I trauma center.

Abstract Introduction: Conventionally, a Glasgow Coma Scale (GCS) score of 13–15 defines mild traumatic brain injury (mTBI). The aim of this study was to identify the factors that predict progression on repeat head computed tomography (RHCT) and neurosurgical intervention (NSI) in patients categorized as mild TBI with intracranial injury (intracranial haemorrhage and/or skull fracture). Methods: This study performed a retrospective chart review of all patients with traumatic brain injury who presented to a level 1 trauma centre. Patients with blunt TBI, an intracranial injury and admission GCS of 13–15 without anti-platelet and anti-coagulation therapy were included. The outcome measures were: progression on RHCT and need for neurosurgical intervention (craniotomy and/or craniectomy). Results: A total of 1800 patients were reviewed, of which 876 patients were included. One hundred and fifteen (13.1%) patients had progression on RHCT scan. Progression on RHCT was 8-times more likely in patients with subdural haemorrhage ≥10 mm, 5-times more likely with epidural haemorrhage ≥10 mm and 3-times more likely with base deficit ≥4. Forty-seven patients underwent a neurosurgical intervention. Patients with displaced skull fracture were 10-times more likely and patients with base deficit >4 were 21-times more likely to have a neurosurgical intervention. Conclusion: In patients with intracranial injury, a mild GCS score (GCS 13–15) in patients with an intracranial injury does not preclude progression on repeat head CT and the need for a neurosurgical intervention. Base deficit greater than four and displaced skull fracture are the greatest predictors for neurosurgical intervention in patients with mild TBI and an intracranial injury.

Accuracy of Unenhanced MR Imaging in the Detection of Acute Appendicitis: Single-Institution Clinical Performance Review

BACKGROUND Small 14F pigtail catheters (PCs) have been shown to drain air quite well in patients with traumatic pneumothorax (PTX). But their effectiveness in draining blood in patients with traumatic hemothorax (HTX) or hemopneumothorax (HPTX) is unknown. We hypothesized that 14F PCs can drain blood as well as large-bore 32F to 40F chest tubes. We herein report our early case series experience with PCs in the management of traumatic HTX and HPTX. METHODS We prospectively collected data on all bedside-inserted PCs in patients with traumatic HTX or HPTX during a 30-month period (July 2009 through December 2011) at our Level I trauma center. We then compared our PC prospective data with our trauma registry–derived retrospective chest tube data (January 2008 through December 2010) at our center. Our primary outcome of interest was the initial drainage output. Our secondary outcomes were tube duration, insertion-related complications, and failure rate. For our statistical analysis, we used the unpaired Student’s t-test, &khgr;2 test, and Wilcoxon rank-sum test; we defined significance by a value of p < 0.05. RESULTS A total of 36 patients received PCs, and 191 received chest tubes. Our PC group had a higher rate of blunt mechanism injuries than our chest tube group did (83 vs. 62%; p = 0.01). The mean initial output was similar between our PC group (560 ± 81 mL) and our chest tube group (426 ± 37 mL) (p = 0.13). In the PC group, the tube was inserted later (median, Day 1; interquartile range, Days 0–3) than the tube inserted in our chest tube group (median, Day 0; interquartile range, Days 0–0) (p < 0.001). Tube duration, rate of insertion-related complications, and failure rate were all similar. CONCLUSION In our early experience, 14F PCs seemed to drain blood as well as large-bore chest tubes based on initial drainage output and other outcomes studied. In this early phase, we were being selective in inserting PCs in only stable blunt trauma patients, and PCs were inserted at a later day from the time of the initial evaluation. In the future, we will need a larger sample size and possibly a well-designed prospective study. LEVEL OF EVIDENCE Therapeutic study, level V.