Large Penetrating Wounds to the Chest Managed With Immediate Chest Wall Reconstruction Using Biologic Mesh, Titanium Plates, and Rotational Tissue Flaps.

Large open chest wall wounds can be difficult to manage due to full-thickness tissue loss with underlying rib fractures and exposed lung parenchyma. Historically, the use of synthetic material has been discouraged in the traumatic setting with the concern that it may be associated with an increased risk of infection. We present 4 patients with large open injuries to the thorax-one from blunt and three from penetrating trauma. We describe our initial management followed by prompt surgical repair using biologic mesh, titanium rib spanning plates, and rotational tissue flaps with Z-plasty of the skin for definite closure. All patients did well post-operatively without complications or wound infections. With the appropriate management, we suspect there may be an advantage in performing immediate reconstruction and closure in large open thoracic injuries utilizing biologic mesh and titanium rib spanning plates with a lower risk of infection than previously believed.

Utilizing Video-Assisted Retroperitoneal Debridement for Retroperitoneal Abscess Following Penetrating Trauma.

Retroperitoneal abscess as a sequela of penetrating trauma can pose a difficult clinical scenario for surgeons and literature to inform decision making is sparse. It is logical to follow a "step-up" approach applied to other etiologies of infected retroperitoneal fluid collections, such as infected pancreatic necrosis and perinephric abscess. Video-assisted retroperitoneal debridement (VARD) is a well-established approach in infected pancreatic necrosis when surgical debridement is warranted. Minimally invasive retroperitoneal approaches have emerged in a broadening range of etiologies and specialties. We describe our experience utilizing VARDs in two patients that developed retroperitoneal abscesses following gunshot injuries to bowel and proximal urinary system. Both failed a conservative approach including antibiotic and percutaneous drains. Rapid improvement and subsequent discharge were observed within days of VARD procedure. We believe VARD to be a viable approach to post-trauma retroperitoneal abscesses when surgical drainage is indicated, and anatomy is favorable.

Does Presenting Facility and Race Impact Outcomes and Management of Pyloric Stenosis?

Hypertrophic Pyloric Stenosis (HPS) is a common surgical disease in infants. Traditionally, patients present with projectile emesis and severe dehydration with metabolic alkalosis. We looked to assess if patients presenting as a transfer vs directly to our facility as well as race affected patients' initial presentation and outcomes. We performed a retrospective analysis of 131 patients who presented to with a diagnosis of HPS from 2015 to 2021 assessing how transfer status and patient race affected presenting electrolyte levels and length of stay (LOS). We found no statistically significant difference in patients' presenting electrolyte levels and hospital LOS based on transfer status or patient race. We believe this reflects availability and widespread utility of ultrasound. We suggest that this could be used as a model for standardizing care to equalize outcomes in other pediatric diseases which currently show large disparities in care based on race and geographical location.

Pathologic Tumor Size versus Mammography, Sonography, and MRI in Breast Cancer Based on Pathologic Subtypes.

INTRODUCTION: The standard of care for imaging of breast pathology has historically been mammography and sonography. MRI is a modern adjunct in the surgeon's toolkit. We looked to examine the differences in imaging modalities and their ability to predict the size in relation to the pathologic size after excision with focus on pathologic subtypes. METHODS: We analyzed patient records across a 4-year period from 2017 to 2021 who were treated surgically for breast cancer at our facility. We used a retrospective chart review to collect measurements that were recorded of the tumors by the radiologist for available mammography, ultrasound, and MRI which were compared to pathology report measurements of the final specimens. We subdivided the results by pathologic subtypes including invasive ductal carcinoma (IDC), invasive lobular carcinoma (ILC), and ductal carcinoma in situ (DCIS). RESULTS: 658 total patients met criteria for analysis. Mammography overestimated specimens with DCIS by 1.93 mm (P = .15), US underestimated by .56 (.55), and MRI overestimated by 5.77 mm (P < .01). There was no statistically significant difference in any modalities with IDC. With specimens of ILC, all 3 imaging modalities underestimated tumor size, with only US being significant. DISCUSSION: Mammography and MRI consistently overestimated tumor size with the exception of ILC while US underestimated tumor size on all pathologic subtypes. MRI significantly overestimated tumor size in DCIS by 5.77 mm. Mammography was the most accurate imaging modality for all pathologic subtypes and never had a statistically significant difference from actual tumor size.

MUlticenter STudy of tissue plasminogen activator (alteplase) use in COVID-19 severe respiratory failure (MUST COVID): A retrospective cohort study.

Background: Few therapies exist to treat severe COVID-19 respiratory failure once it develops. Given known diffuse pulmonary microthrombi on autopsy studies of COVID-19 patients, we hypothesized that tissue plasminogen activator (tPA) may improve pulmonary function in COVID-19 respiratory failure. Methods: A multicenter, retrospective, observational study of patients with confirmed COVID-19 and severe respiratory failure who received systemic tPA (alteplase) was performed. Seventy-nine adults from seven medical centers were included in the final analysis after institutional review boards' approval; 23 were excluded from analysis because tPA was administered for pulmonary macroembolism or deep venous thrombosis. The primary outcome was improvement in the PaO2/FiO2 ratio from baseline to 48 h after tPA. Linear mixed modeling was used for analysis. Results: tPA was associated with significant PaO2/FiO2 improvement at 48 h (estimated paired difference = 23.1 ± 6.7), which was sustained at 72 h (interaction term p < 0.00). tPA administration was also associated with improved National Early Warning Score 2 scores at 24, 48, and 72 h after receiving tPA (interaction term p = 0.00). D-dimer was significantly elevated immediately after tPA, consistent with lysis of formed clot. Patients with declining respiratory status preceding tPA administration had more marked improvement in PaO2/FiO2 ratios than those who had poor but stable (not declining) respiratory status. There was one intracranial hemorrhage, which occurred within 24 h following tPA administration. Conclusions: These data suggest tPA is associated with significant improvement in pulmonary function in severe COVID-19 respiratory failure, especially in patients whose pulmonary function is in decline, and has an acceptable safety profile in this patient population.

Surgical Stabilization of Rib Fractures Improves Outcomes in the Geriatric Patient Population.

INTRODUCTION: Rib fractures in the ≥65-year-old population have been shown to strongly influence mortality and pneumonia rates. There is a growing body of evidence demonstrating improvements in the geriatric patient's survival statistics and respiratory performances after surgical stabilization of rib fractures (SSRF). We have observed a strong survival and complication avoidance trend in geriatric patients who undergo SSRF. The purpose of our study was to evaluate the outcomes of geriatric patients with rib fractures treated with SSRF compared to those who only receive conservative therapies. METHODS: We performed a retrospective review of our trauma registry analyzing outcomes of patients ≥65 years with rib fractures. Patients admitted from 2015 to 2019 receiving SSRF (RP group) were compared to a nonoperative controls (NO group) admitted during the same time. Bilateral fractures were excluded. Independent variables analyzed = ISS, mortalities, hospital days, ICU days, pleural space complications, and readmissions. Follow-up was 60 days after discharge. Group comparison was performed using Kolmogorov-Smirnov, Shapiro-Wilk, and Mann-Whitney U tests. RESULTS: 257 patients were analyzed: 172 in the NO group with mean age of 75 (65-10) and 85 in the RP group with mean age of 74 (65-96). Mean ISS = 13 (1-38) for the NO group and 20 (9-59) for the RP group (P < .001). Mean hospital days = 8 (1-39) and 15 (3-49) in NO and RP groups, respectively. Mean ICU days = 10 (1-32) and 8 (1-11) in NO and RP groups, respectively. Deaths, pneumonia, readmissions, and pleural effusions in the NO group were statistically significant (P < .01). Analysis of complications revealed 4 RP patients (4.7%) with respiratory complications out to 60 days and 65 NO patients (37.8%) (P < .001). CONCLUSIONS: Surgical stabilization of rib fractures appears to be associated with a survival advantage and an avoidance of respiratory-related complications in the ≥65-year-old patient population.

How Many Screws to Use: A Report of Outcomes After Surgical Stabilization of Rib Fractures Where less than the Manufacturer Recommended Screw Number Were Applied.

Surgical stabilization of rib fractures in an effective technique for the management of bony thoracic trauma. However, rib fractures location or morphology may make the placement of the recommended 6 screws impossible. A retrospective analysis of patients receiving SSRF at our facility from 2009-2019 identified cases where less than the recommended screw placement was used. Respiratory complications and hardware integrity were analyzed using follow-up imaging and examinations when available. A total of 62 patients were identified that used less than the recommended number of screws. The majority of these were in the lateral and posterior chest wall positions. 1 pleural effusion, no pneumothoraces, deaths, or hardware dislodgments were identified. While the authors do not advocate for the routine deviation from manufacture recommendations, we concluded that in select circumstances, adequate fixation can be achieved with less than 6 screws across a plated fracture.