Color-flow duplex screening for upper extremity proximity injuries: a low-yield strategy for therapeutic intervention.

BACKGROUND: Although the incidence of injury to the upper extremity screened with angiography as a result of proximity penetrating trauma is similar to that of the lower extremity, intervention rates seem to be higher. However, studies evaluating the incidence of injury as a result of proximity penetrating trauma have primarily focused on the lower extremity. This study shows the incidence and clinical significance of vascular injury as a result of proximity trauma to the upper extremity in a large cohort of patients screened with color-flow duplex. MATERIALS AND METHODS: A retrospective study was conducted from January 1, 2005 to January 1, 2012 on all patients undergoing color-flow duplex as a result of proximity penetrating trauma to the upper extremity. Data on injury location, mechanism, associated extremity and nonextremity injuries, and use and results of color-flow duplex were recorded and analyzed. RESULTS: A total of 341 patients were identified who underwent color-flow duplex because of proximity penetrating trauma to the upper extremity. Injuries occurred in 370 extremities, with 253 located in the upper arm and 117 in the forearm. Overall, 18 (4.9%) injuries were identified on screening duplex ultrasound, of which 12 (3.2%) were arterial and 5 (1.4%) were venous. The therapeutic intervention rate for detected injuries to the upper arm was 1.6% (4/253), whereas no injuries of the forearm were identified that necessitated intervention. CONCLUSIONS: Although color-flow duplex is an inexpensive and noninvasive means of detecting injuries as a result of proximity penetrating trauma, screening upper extremity wounds is unlikely to detect clinically significant arterial injuries in need of therapeutic intervention. Venous injuries in the form of deep venous thromboses were detected in only 1.4% of patients. These findings suggest that screening for proximity penetrating trauma of the upper extremity is unlikely to detect injuries at a rate that would prove cost-effective on formal decision analysis.

Diagnosis and management of primary effusion lymphoma in the immunocompetent and immunocompromised hosts.

Primary effusion lymphoma (PEL) is an uncommon non-Hodgkin lymphoma associated with human herpes virus-8 (HHV-8) that grows mainly in serous body cavities. The most common presentation of PEL is that of a young immunocompromised male with shortness of breath, as the pleural cavity is most commonly affected. Diagnosis is primarily based on fluid cytology in which PEL cells display variable morphology and a null lymphocyte immunophenotype; however, evidence of HHV-8 infection within the neoplastic cell is essential. Patients have commonly been treated with systemic multidrug chemotherapy and antiretroviral therapy if they were HIV positive or were immunocompromised for other reasons. In the immunocompetent patient, there have been no agreed-upon pathways for management of this condition. Progression of disease is common and median survival is approximately 6 months. Novel intrapleural treatments with antiviral agents such as intracavity cidofovir have shown to be effective in controlling local disease, and ongoing clinical trials may provide some promise in the treatment for this condition.

The Role of Lung Cancer Surgical Technique on Lymph Node Sampling and Pathologic Nodal Upstaging.

BACKGROUND: The role of operative approach in surgical lymphadenectomies and pathologic nodal upstaging for lung cancer remains unclear. METHODS: This study retrospectively reviewed patients who underwent lobectomy for non-small cell lung cancer from January 2015 to December 2020 at 16 centers within a statewide quality improvement collaborative in Michigan. Patients were stratified by operative approach, and our primary end points were number of LN recovered, number of LN stations sampled, and rates of nodal upstaging with nodal upstaging defined as a higher final pathologic nodal stage compared with preoperative clinical nodal staging. RESULTS: A total of 3036 patients were included: 608 (20.0%) with open lobectomies, 1362 (41.3%) with video-assisted thoracoscopic surgery (VATS), and 1233 (37.4%) with robot-assisted thoracoscopic surgery (RATS) lobectomies. Using multivariable logistic regression, study investigators found that VATS was associated with lower rates of nodal upstaging (odds ratio [OR], 0.71; 95% CI, 0.54-0.94; P = .015) and harvesting ≥10 LNs (OR, 0.40; 95% CI, 0.31-0.50; P < .001) as compared with open surgery, whereas no significant difference was found between RATS and open techniques. Compared with open surgery, VATS had lower rates of sampling at ≥5 nodal stations (OR, 0.66; 95% CI, 0.53-0.84; P = .001), whereas RATS rates were higher (OR, 2.38; 95% CI, 1.85-3.06; P < .001). CONCLUSIONS: VATS lobectomies were associated with lower rates of harvesting ≥10 LNs, sampling ≥5 LN stations, and pathologic nodal upstaging compared with open and RATS lobectomies. Compared with open procedures, RATS lobectomies were associated with higher rates of sampling ≥5 LN stations, but there was no significant difference between open and RATS approaches in rates of nodal upstaging or harvesting ≥10 LNs.

Hepatocellular carcinoma: current management and perspectives for the future.

OBJECTIVE: To review the literature on current management of hepatocellular carcinoma (HCC). BACKGROUND: Hepatocellular carcinoma represents one of the most common malignancies worldwide with a rising incidence in western countries. There have been substantial advances in the surgical and medical treatment of HCC within the past 2 decades. METHODS: A literature review was performed in the MEDLINE database to identify studies on the management of HCC. On the basis of the available evidence recommendations for practice were graded using the Oxford Centre for Evidence-based Medicine classification. RESULTS: Advances in surgical technique and perioperative care have established surgical resection and orthotopic liver transplantation (OLT) as primary curative therapy for HCC in noncirrhotic and cirrhotic patients, respectively. Primary resection and salvage OLT may be indicated in cirrhotics with preserved liver function. Selection criteria for OLT remain debated, as slight expansion of the Milan criteria may not worsen prognosis but is limited by organ shortage and prolonged waiting time with less favorable outcome on intention-to-treat analyses. Strategies of neoadjuvant treatment before OLT require evaluation within prospective trials. Transarterial chemoembolization is the primary therapy in patients with inoperable HCC and compensated liver function. Although systemic chemotherapy is not effective in patients with advanced HCC, there is recent evidence that these patients benefit from new molecular targeted therapies. If these agents are also effective in the neoadjuvant and adjuvant setting is currently being investigated. Furthermore, selective intra-arterial radiation therapy represents a promising new approach for treatment of unresectable HCC. CONCLUSIONS: Recent developments in the surgical and medical therapy have significantly improved outcome of patients with operable and advanced HCC. A multidisciplinary approach seems essential to further improve patients' prognosis.

Arterial resection during pancreatectomy for pancreatic cancer: a systematic review and meta-analysis.

BACKGROUND: The majority of pancreatic cancers are diagnosed at an advanced stage. As surgical resection remains the only hope for cure, more aggressive surgical approaches have been advocated to increase resection rates. Institutions have begun to release data on their experience with pancreatectomy and simultaneous arterial resection (AR), which has traditionally been considered a general contraindication to resection. The aim of the present meta-analysis was to evaluate the perioperative and long-term outcomes of patients with AR during pancreatectomy for pancreatic cancer. METHODS: The Medline, Embase, and Cochrane Library and J-East databases were systematically searched to identify studies reporting outcome of patients who underwent pancreatectomy with AR for pancreatic cancer. Studies that reported perioperative and/or long-term results after pancreatectomy with AR were eligible for inclusion. Meta-analyses included comparative studies providing data on patients with and without AR and were performed using a random effects model. RESULTS: The literature search identified 26 studies including 366 and 2243 patients who underwent pancreatectomy with and without AR. All studies were retrospective cohort studies and the methodological quality was moderate to low. Meta-analyses revealed AR to be associated with a significantly increased risk for perioperative mortality [Odds ratio (OR) = 5.04; 95% confidence interval (CI), 2.69-9.45; P < 0.0001; I² = 24%], poor survival at 1 year (OR = 0.49; 95% CI, 0.31-0.78; P = 0.002; I² = 35%) and 3 years (OR = 0.39; 95% CI, 0.17-0.86; P = 0.02; I² = 49%) compared with patients without AR. The increased perioperative mortality (OR = 8.87; 95% CI, 3.40-23.13; P < 0.0001; I² = 5%) and lower survival rate at 1 year (OR = 0.50; 95% CI, 0.31-0.82; P = 0.006; I² = 40%) was confirmed in the comparison to patients undergoing venous resection. Despite substantial perioperative mortality, pancreatectomy with AR was associated with more favorable survival compared with patients who did not undergo resection for locally advanced disease. CONCLUSIONS: AR in patients undergoing pancreatectomy for pancreatic cancer is associated with a poor short and long-term outcome. Pancreatectomy with AR may, however, be justified in highly selected patients owing to the potential survival benefit compared with patients without resection. These patients should be treated within the bounds of clinical trials to assess outcomes after AR in the era of modern pancreatic surgery and multimodal therapy.

Meta-analysis shows that detection of circulating tumor cells indicates poor prognosis in patients with colorectal cancer.

BACKGROUND & AIMS: The prognostic significance of circulating (CTCs) and disseminated tumor cells in patients with colorectal cancer (CRC) is controversial. We performed a meta-analysis of available studies to assess whether the detection of tumor cells in the blood and bone marrow (BM) of patients diagnosed with primary CRC can be used as a prognostic factor. METHODS: We searched the Medline, Biosis, Science Citation Index, and Embase databases and reference lists of relevant articles (including review articles) for studies that assessed the prognostic relevance of tumor cell detection in the peripheral blood (PB), mesenteric/portal blood (MPB), or BM of patients with CRC. Meta-analyses were performed using a random effects model, with hazard ratio (HR) and 95% confidence intervals (95% CIs) as effect measures. RESULTS: A total of 36 studies, including 3094 patients, were eligible for final analyses. Pooled analyses that combined all sampling sites (PB, MPB, and BM) associated the detection of tumor cells with poor recurrence-free survival (RFS) (HR = 3.24 [95% CI: 2.06-5.10], n = 26, I(2) = 77%) and overall survival (OS) (2.28 [1.55-3.38], n = 21, I(2) = 66%). Stratification by sampling site showed that detection of tumor cells in the PB compartment was a statistically significant prognostic factor (RFS: 3.06 [1.74-5.38], n = 19, I(2) = 78%; OS: 2.70 [1.74-4.20], n = 16, I(2) = 59%) but not in the MPB (RFS: 4.12 [1.01-16.83], n = 8, I(2) = 75%; OS: 4.80 [0.81-28.32], n = 5, I(2) = 82%) or in the BM (RFS: 2.17 [0.94-5.03], n = 4, I(2) = 78%; OS: 1.50 [0.52-4.32], n = 3, I(2) = 84%). CONCLUSION: Detection of CTCs in the PB indicates poor prognosis in patients with primary CRC.

The consequences of noncompliance with guidelines for withholding or terminating resuscitation in traumatic cardiac arrest patients.

BACKGROUND: The validity of current guidelines regarding resuscitation of patients in traumatic cardiopulmonary arrest (TCPA) and the ability of emergency medical services (EMS) to appropriately apply them have been called into question. The purpose of this study is to demonstrate the consequences of violating the current published guidelines and whether EMS personnel were able to accurately identify patients in TCPA. METHODS: We conducted a retrospective review of our Level I trauma center's database that identified 294 patients over an 8-year period (January 1, 2003, to December 31, 2010) who suffered prehospital TCPA and met criteria for the withholding or termination of resuscitation based on current guidelines. Patient demographics, prehospital/emergency department physiology, survival, neurologic outcome, and hospital charges were analyzed. RESULTS: One of 294 patients (0.3%) survived to reach hospital discharge with a Glasgow Coma Scale score of 6. The total costs incurred for these 294 patients meeting criteria for withholding or termination of resuscitation were $3,852,446.65. One hundred seventeen (39.8%) patients were evaluated by more than one EMS team. There was 100% agreement on the presence (15 of 15) or absence (102 of 102) of a pulse between the EMS teams. CONCLUSIONS: Our data support the current guidelines regarding the withholding or termination of resuscitation of patients in prehospital TCPA and represent the largest series to date on this topic. EMS personnel were able to accurately determine traumatic cardiac arrest in the field in this series. Violation of the current guidelines resulted in six patients being resuscitated to a neurologically devastated state. No loss of neurologically intact survivors would have resulted had strict adherence to the guidelines been maintained.

Health care utilization and consequences of readmission in the first year after lung transplantation.

BACKGROUND: Hospital readmissions are costly and have become a focus for quality improvement. We aimed to determine risk factors, rate, and outcomes of readmissions within the first year after lung transplantation and the potential impact on patient survival. METHODS: A retrospective cohort study of all lung transplant recipients ≥18 years old who had undergone initial transplantation (2004-2013) at a single center was conducted. Logistic regression was used to identify independent predictors of readmission for patients who survived hospitalization. Cox regression was used to explore the relationship between readmission and long-term risk of death, while adjusting for potential confounders for patients who survived the first year. RESULTS: During the study period, 412 patients met inclusion criteria for the readmission analysis. There were 276 patients (67%) readmitted within 1 year after lung transplantation for a total of 609 readmissions (average ± SD, 1.5 ± 2). Average length of readmission stay was 6 days ± 7, with 44% of readmissions lasting ≤3 days. Airway complications were found to be a significant risk factor for readmission (odds ratio, 4.18; 95% confidence interval, 1.78-9.54; p = 0.001). After adjustment, the overall risk of death was significantly higher with each readmission during the first year (hazard ratio, 1.22; 95% confidence interval, 1.13-1.31, p < 0.0001). CONCLUSIONS: Most patients who survive the first post-operative year experience at least 1 readmission, with patients who experience airway complications at particular risk. Patients discharged to inpatient rehabilitation were less likely to be readmitted. The cumulative burden of multiple readmissions is associated with worse long-term survival.

Impact of primary caregivers on long-term outcomes after lung transplantation.

BACKGROUND: Current guidelines consider the absence of a dependable social support system as an absolute contraindication to lung transplantation, yet there are varying degrees of social support among those selected for transplantation. We sought to characterize the relationship between a patient's self-reported primary caregiver and long-term outcomes after lung transplantation. METHODS: We conducted a retrospective cohort study of all lung transplant recipients ≥18 years of age who had undergone an initial transplant (2000 to 2010). Cox regression was used to explore the relationship between type of caregiver and the long-term risk of death and chronic graft failure while adjusting for potential confounders. RESULTS: There were 452 patients undergoing lung transplantation over the study period who met the inclusion criteria. Five types of primary caregivers were identified, with spouse 60% (270 of 452) being the most common. Compared with spousal caregiver, overall survival was significantly worse for patients who identified an adult child (hazard ratio [HR] 2.04, 95% confidence interval [CI] 1.15 to 3.60) or sibling (HR 3.79, 95% CI 2.48 to 5.78) as their primary caregiver. In addition, risk for long-term graft failure was increased significantly (HR 3.34, 95% CI 1.58 to 7.06) among patients with sibling caregivers. CONCLUSIONS: Type of primary caregiver selected before transplantation was associated with long-term outcomes. These results may be a reflection of the long-term support requirements and/or competing responsibilities of other caregiver types. Interventions to increase support for at-risk patients may include identifying additional caregivers during the pre-transplant assessment. As lung allocation is designed to maximize graft potential, risk stratification for listing patients should include type of caregiver and be considered as critically as major organ dysfunction.

Video-assisted thoracoscopic (VATS) lobectomy after induction therapy.

Concerns regarding the sequelae of neoadjuvant chemotherapy or chemoradiotherapy on the pleural space and tissue planes had previously deterred the application of video-assisted thoracoscopic (VATS) lobectomy for patients who underwent neoadjuvant therapy. As experience with VATS has increased, however, its application toward more technically demanding operations has also expanded. The diminished impact on pulmonary function associated with the VATS approach may make pulmonary resection more tolerable in compromised patients. This article describes an approach designed for maximal safety on carefully selected patients who have undergone induction therapy.

Lymphovascular invasion as a prognostic indicator in stage I non-small cell lung cancer: a systematic review and meta-analysis.

BACKGROUND: Lymphovascular invasion (LVI) is considered a high-risk pathologic feature in resected non-small cell carcinoma (NSCLC). The ability to stratify stage I patients into risk groups may permit refinement of adjuvant treatment recommendations. We performed a systematic review and meta-analysis to evaluate whether the presence of LVI is associated with disease outcome in stage I NSCLC patients. METHODS: A systematic search of the literature was performed (1990 to December 2012 in MEDLINE/EMBASE). Two reviewers independently assessed the quality of the articles and extracted data. Pooled hazard ratios (HRs) and 95% confidence intervals (CI) were estimated with a random effects model. Two end points were independently analyzed: recurrence-free survival (RFS) and overall survival (OS). We analyzed unadjusted and adjusted effect estimates, resulting in four separate meta-analyses. RESULTS: We identified 20 published studies that reported the comparative survival of stage I patients with and without LVI. The unadjusted pooled effect of LVI was significantly associated with worse RFS (HR, 3.63; 95% CI, 1.62 to 8.14) and OS (HR, 2.38; 95% CI, 1.72 to 3.30). Adjusting for potential confounders yielded similar results, with RFS (HR, 2.52; 95% CI, 1.73 to 3.65) and OS (HR, 1.81; 95% CI, 1.53 to 2.14) both significantly worse for patients exhibiting LVI. CONCLUSIONS: The present study indicates that LVI is a strong prognostic indicator for poor outcome for patients with surgically managed stage I lung cancer. Future prospective lung cancer trials with well-defined methods for evaluating LVI are necessary to validate these results.

The incidence of acute venous injury as a result of proximity penetrating trauma screened with colour flow duplex ultrasound.

INTRODUCTION: The incidence of acute deep venous thrombosis as a result of penetrating proximity extremity trauma (PPET) to the thigh has been demonstrated to be 16% in a single report. The purpose of the current study is to demonstrate the incidence and clinical significance of venous injury as a result of proximity trauma to the thigh in a large cohort screened with colour flow duplex (CFD) ultrasound and to identify factors predictive of defining a wound in proximity to a major vascular structure. PATIENTS AND METHODS: A prospective observational study was conducted from January 1st, 2010 to January 1st, 2012 on all patients presenting with penetrating extremity trauma. Data on injury location, mechanism, associated extremity and non-extremity injuries, use and results of CFD, as well as the admitting trauma surgeon were recorded and analysed. RESULTS: 220 thigh wounds with a normal physical examination were identified, of which 167 (75.9%) underwent CFD due to proximity. The incidence of acute venous injury was 4.8% (8/167). 37.5% (3/8) of these injuries resulted in morbidity. Injury mechanism and which attending physician was on call were predictive of a wound being defined as in proximity, whereas an injury with an associated fracture was a negative predictor. CONCLUSIONS: Occult venous injuries as a result of PPET occur in 4.8% of patients with thigh wounds in proximity to a major vascular structure. The designation of a wound as being in "proximity" was influenced by injury mechanism, associated fractures, and the judgement of the on-call attending. Colour flow duplex is a valuable tool with the ability to identify not only occult arterial injuries, but also venous injuries with the potential to cause significant morbidity as well.

Age-associated impact on presentation and outcome for penetrating thoracic trauma in the adult and pediatric patient populations.

BACKGROUND: Studies reporting on penetrating thoracic trauma in the pediatric population have been limited by small numbers and implied differences with the adult population. Our objectives were to report on a large cohort of pediatric patients presenting with penetrating thoracic trauma and to determine age-related impacts on management and outcome through comparison with an adult cohort. METHODS: A Level I trauma center registry was queried between 2006 and 2012. All patients presenting with penetrating thoracic trauma were identified. Patient demographics, injury mechanism, injury severity, admission physiology, and outcome were recorded. Patients were compared, and outcomes were analyzed based on age at presentation, with patients 17 years or younger defining our pediatric cohort. RESULTS: A total of 1,423 patients with penetrating thoracic trauma were admitted during the study period. Two hundred twenty patients (15.5%) were pediatric, with 205 being adolescents (13-17 years) and 15 being children (≤ 12 years). In terms of management for the pediatric population, tube thoracostomy alone was needed in 32.7% (72 of 220), whereas operative thoracic exploration was performed in 20.0% (44 of 220). Overall mortality was 13.6% (30 of 220). There was no significant difference between the pediatric and adult population with regard to injury mechanism or severity, need for therapeutic intervention, operative approach, use of emergency department thoracotomy, or outcome. Stepwise logistic regression failed to identify age as a predictor for the need for either therapeutic intervention or mortality between the two age groups as a whole. However, subgroup analysis revealed that being 12 years or younger (odds ratio, 3.84; 95% confidence interval, 1.29-11.4) was an independent predictor of mortality. CONCLUSION: Management of traumatic penetrating thoracic injuries in terms of the need for therapeutic intervention and operative approach was similar between the adult and pediatric populations. Mortality from penetrating thoracic trauma can be predicted based on injury severity, the use of emergency department thoracotomy, and admission physiology for adolescents and adults. Children may be at increased risk for poor outcome independent of injury severity. LEVEL OF EVIDENCE: Epidemiologic study, level III.

Malignant pleural mesothelioma and the Society of Thoracic Surgeons Database: an analysis of surgical morbidity and mortality.

BACKGROUND: To date, reported surgical morbidity and mortality for pleurectomy/decortication and extrapleural pneumonectomy performed for malignant pleural mesothelioma primarily represent the experience of a few specialized centers. For comparison, we examined early outcomes of pleurectomy/decortication and extrapleural pneumonectomy from a broader group of centers/surgeons participating in the Society of Thoracic Surgeons-General Thoracic Database. METHODS: All patients in the Society of Thoracic Surgeons-General Thoracic Database (version 2.081, representing 2009-2011) who underwent pleurectomy/decortication or extrapleural pneumonectomy for malignant pleural mesothelioma were identified. Patient characteristics, morbidity, mortality, center volume, and procedure were examined using univariable and multivariable analyses. RESULTS: A total of 225 patients underwent pleurectomy/decortication (n = 130) or extrapleural pneumonectomy (n = 95) for malignant pleural mesothelioma at 48 centers. Higher volumes of procedures (≥5/y) were performed at 3 pleurectomy/decortication and 2 extrapleural pneumonectomy centers. Patient characteristics were statistically equivalent between pleurectomy/decortication and extrapleural pneumonectomy groups, except those undergoing extrapleural pneumonectomy were younger (63.2 ± 7.8 years vs 68.3 ± 9.5 years; P < .001) and more likely to have received preoperative chemotherapy (30.1% vs 17.8%; P = .036). Major morbidity was greater after extrapleural pneumonectomy, including acute respiratory distress syndrome (8.4% vs 0.8%; P = .005), reintubation (14.7% vs 2.3%; P = .001), unexpected reoperation (9.5% vs 1.5%; P = .01), and sepsis (4.2% vs 0%; P = .03), as was mortality (10.5% vs 3.1%; P = .03). Multivariate analyses revealed that extrapleural pneumonectomy was an independent predictor of major morbidity or mortality (odds ratio, 6.51; P = .001). Compared with high-volume centers, increased acute respiratory distress syndrome was seen in low-volume centers performing extrapleural pneumonectomy (0% vs 12.5%; P = .05). CONCLUSIONS: Extrapleural pneumonectomy is associated with greater morbidity and mortality compared with pleurectomy/decortication when performed by participating surgeons of the Society of Thoracic Surgeons-General Thoracic Database. Effects of center volume require further study.

Postoperative surveillance for non-small cell lung cancer resected with curative intent: developing a patient-centered approach.

Local recurrence or the development of metachronous cancer after surgical therapy for early-stage non-small cell lung cancer (NSCLC) is not uncommon, and these conditions are often amenable to curative therapy. Predictors of recurrence based on surgical, patient, and pathologic factors are well known. A literature search was performed for articles regarding identification or treatment with curative intent of early local recurrence or metachronous cancer after resection of NSCLC. A patient-centered algorithm for surveillance after resection can be developed based on both risk of recurrence and potential benefit from further treatment to optimize individual follow-up algorithms.

Utilization of cardiothoracic surgeons for operative penetrating thoracic trauma and its impact on clinical outcomes.

BACKGROUND: Large series reporting outcomes for penetrating thoracic trauma have identified injury pattern and injury severity scoring as predictors of poor outcome. However, the impact of surgical expertise on patient outcomes has not been previously investigated. We sought to determine how often board-certified cardiothoracic surgeons are utilized for operative thoracic trauma and whether this has an effect on patient outcomes. METHODS: A level I trauma center registry was queried between 2003 and 2011. Records of patients undergoing surgery as a result of penetrating thoracic trauma were retrospectively reviewed. Patient demographics, injuries, injury severity, utilization of a cardiothoracic surgical operative consult and outcomes were recorded. Patients operated on by cardiothoracic surgeons were compared with patients operated on by trauma surgeons using stepwise multivariate analyses to determine the factors associated with utilization of cardiothoracic surgeons for operative thoracic trauma and survival. RESULTS: Cardiothoracic surgeons were used in 73.0% of cases (162 of 222) over the study period. The use of cardiothoracic surgeons increased incrementally both overall (38.5% to 73.9%), and for emergent/urgent cases (31.8% to 73.3%). When comparing patients undergoing operation on an emergent/urgent basis by cardiothoracic versus trauma surgeons, there was no significant difference with regard to demographics, mechanism of injury, injury severity scoring, or surgical morbidity. Stepwise logistic regression showed the presence of a cardiothoracic surgeon to be independently associated with survival (odds ratio 4.70; p = 0.019). CONCLUSIONS: Use of cardiothoracic surgeons for operative thoracic trauma increased over the study period. Outcomes for severely injured patients with elevated chest injury scores or decreased revised trauma scores may be improved with appropriate operative consultation with a board-certified cardiothoracic surgeon.

Critical role for the receptor tyrosine kinase EPHB4 in esophageal cancers.

Esophageal cancer incidence is increasing and has few treatment options. In studying receptor tyrosine kinases associated with esophageal cancers, we have identified EPHB4 to be robustly overexpressed in cell lines and primary tumor tissues. In total, 94 squamous cell carcinoma, 82 adenocarcinoma, 25 dysplasia, 13 Barrett esophagus, and 25 adjacent or unrelated normal esophageal tissues were evaluated by immunohistochemistry. EPHB4 expression was significantly higher in all the different histologic categories than in adjacent normal tissues. In 13 esophageal cancer cell lines, 3 of the 9 SCC cell lines and 2 of the 4 adenocarcinomas expressed very high levels of EPHB4. An increased gene copy number ranging from 4 to 20 copies was identified in a subset of the overexpressing patient samples and cell lines. We have developed a novel 4-nitroquinoline 1-oxide (4-NQO)-induced mouse model of esophageal cancer that recapitulates the EPHB4 expression in humans. A specific small-molecule inhibitor of EPHB4 decreased cell viability in a time- and dose-dependent manner in 3 of the 4 cell lines tested. The small-molecule inhibitor and an EPHB4 siRNA also decreased cell migration (12%-40% closure in treated vs. 60%-80% in untreated), with decreased phosphorylation of various tyrosyl-containing proteins, EphB4, and its downstream target p125FAK. Finally, in a xenograft tumor model, an EPHB4 inhibitor abrogated tumor growth by approximately 60% compared with untreated control. EphB4 is robustly expressed and potentially serves as a novel biomarker for targeted therapy in esophageal cancers.

Quality of life after radical pleurectomy decortication for malignant pleural mesothelioma.

BACKGROUND: Malignant pleural mesothelioma is an aggressive malignancy in which radical surgical treatment appears to improve survival. It is unknown, however, if radical surgical treatment affects quality of life (QoL) adversely. Our objective was to assess patient-reported symptoms of health-related QoL after radical pleurectomy decortication (PD). METHODS: Patients with malignant pleural mesothelioma were prospectively enrolled between 2010 and 2011 to determine the effects of PD on baseline QoL. Health-related QoL was assessed using the European Organization for Research and Treatment of Cancer core Quality of Life Questionnaire-C30 tool (EORTC QLQ-C30) before operation and at 1, 5 to 6, and 8 to 9 months postoperatively. Patients were grouped based on World Health Organization baseline performance status (PS) and compared. RESULTS: Of the 28 patients enrolled, 16 (57.1%) and 12 (42.9%) were World Health Organization PS 0 and PS 1, respectively. At baseline, PS 1 patients had significantly worse global QoL functional and symptom scores at baseline. At 5 to 6 months' follow-up, PS 0 patients had no significant change in global QoL or functional domain scores. PS 1 patients had significant improvement in global QoL (p=0.038), symptoms of fatigue (p=0.05), and dyspnea (p=0.048). At 8 to 9 months' follow-up, PS 0 patients showed significant improvement in symptoms of fatigue (p=0.026) from baseline and PS 1 maintained the improvements in symptoms of fatigue (p=0.049) and dyspnea (p=0.048). CONCLUSIONS: Radical PD does not negatively impact minimally symptomatic patients at intermediate follow-up. Patients who have symptoms at baseline can have significant improvement in their QoL after surgical treatment.

Occult infiltrating bi-ventricular papillary renal cell carcinoma metastasis found during coronary artery bypass graft surgery.

Metastatic papillary renal cell carcinoma (RCC) to the heart has never been reported. We report the case of a 73-year-old patient with papillary RCC metastatic to the left and right ventricles, found during a triple vessel coronary artery bypass graft surgery.

Chest computed tomography for penetrating thoracic trauma after normal screening chest roentgenogram.

BACKGROUND: Chest computed tomography (CCT) is a method of screening for intrathoracic injuries in hemodynamically stable patients with penetrating thoracic trauma. The objective of this study was to examine the changes in utilization of CCT over time and evaluate its contribution to guiding therapeutic intervention. METHODS: A level 1 trauma center registry was queried between 2006 and 2011. Patients undergoing CCT in the emergency department after penetrating thoracic trauma as well as patients undergoing thoracic operations for penetrating thoracic trauma were identified. Patient demographics, operative indications, use of CCT, injuries, and hospital admissions were analyzed. RESULTS: In all, 617 patients had CCTs performed, of whom 61.1% (371 of 617) had a normal screening plain chest radiograph (CXR). In 14.0% (51 of 371) of these cases, the CCT revealed findings not detected on screening CXR. The majority of these injuries were occult pneumothoraces or hemothoraces (84.3%; 43 of 51), of which 27 (62.8%) underwent tube thoracostomy. In only 0.5% (2 of 371), did the results of CCT alone lead to an operative indication: exploration for hemopericardium. The use of CCT in our patients significantly increased overall (28.8% to 71.4%) as well as after a normal screening CXR (23.3% to 74.6%) over the study period. CONCLUSIONS: The use of CCT for penetrating thoracic trauma increased 3.5-fold during the study period with a concurrent increase in findings of uncertain clinical significance. Patients with a normal screening CXR should be triaged with 3-hour delayed CXR, serial physical examinations, and focused assessment with sonography for trauma; and CCT should only be used selectively as a diagnostic modality.