SonoGames: Effect of an Innovative Competitive Game on the Education, Perception, and Use of Point-of-Care Ultrasound.

OBJECTIVES: Gamification is a powerful tool in medical education. SonoGames is a competitive games-based event designed to educate and inspire emergency medicine (EM) residents about point-of-care ultrasound. We sought to describe: (1) the perceived effectiveness of a competitive event on both immediate learning and long-term education; and (2) the resultant attitudes of participants and program directors regarding ultrasound training. METHODS: The SonoGames Organizational Committee designed 2 surveys: 1 for SonoGames V EM resident participants and a second for EM program directors. Survey questions used a 5-point Likert scale to assess overall perceptions and attitudes about ultrasound, changes in self-reported content knowledge and competency, effects on clinical use, and perceived impacts of a competitive game format on education. RESULTS: Seventy-three resident participants and 42 program directors responded to the survey. Ninety-four percent of participants thought that the competitive gaming format of SonoGames was effective in making the event an educational experience. Participants reported that their ultrasound knowledge increased (81%), their enthusiasm for ultrasound increased (87%), and their clinical use of ultrasound increased (61%). Residency program directors reported similar increases to a lesser degree. Greater advancement through the event was associated with more positive responses. Residencies that participated in the event saw greater increases in the use of ultrasound by residents than those that did not. CONCLUSIONS: A competitive games-based educational event focused on point-of-care ultrasound is an effective educational tool. SonoGames increases EM residents' knowledge, enthusiasm, and clinical use of ultrasound both during and after the event.

Point of Care Echocardiography in an Acute Thoracic Dissection with Tamponade in a Young Man with Chest Pain, Tachycardia, and Fever.

BACKGROUND: Although thoracic aortic dissections are uncommon in young patients, they must be considered in the differential diagnosis in the presence of chest pain and abnormal vital signs. Although computed tomography angiography is the test of choice for thoracic dissection in the emergency department, point of care (POC) transthoracic echocardiography has a high specificity in the diagnosis of this disease. It is especially helpful in patients with proximal ascending dissections in the presence of a pericardial effusion. CASE REPORT: This case report illustrates a young patient presenting with chest pain, persistent tachycardia, and fever with a presumed upper respiratory infection who had an ascending thoracic dissection with tamponade discovered on POC echocardiography. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: POC echocardiography should be an important part of the algorithm in young patients presenting with chest pain and abnormal vital signs that do not improve with supportive measures. Definitive care in patients who present with a thoracic aortic dissection in the presence of cardiac tamponade diagnosed on POC echocardiography should not be delayed in order to wait for other imaging methods to be performed. POC echocardiography may expedite care and treatment in young patients presenting with this deadly disease.

Revival of the use of ultrasound in screening for appendicitis in young adult men.

PURPOSE: Our primary aim was to evaluate the use of ultrasound (US) as an initial screening test for diagnosing appendicitis in young adult men. Secondary exploratory analyses included the effects of using US for initial screening in these patients, compared with the use of CT, on radiation exposure, length of stay (LOS), and cost of imaging. METHODS: We retrospectively gathered data from the records of male patients 18-39 years old who had been admitted with appendicitis between June 2006 and September 2011. We investigated the diagnostic tests performed, the patients' characteristics, and the pathologic testing findings and compared the results obtained on US with those obtained on CT. RESULTS: Of 451 included patients, 86 had undergone US initially. Its sensitivity was only 57% (95% confidence interval, 46-67.6), but its positive predictive value was 98% (95% confidence interval, 93.8-100). The mean LOS was significantly shorter for patients who had undergone US only (214 minutes) than it was for those who had undergone CT only (276 minutes; p < 0.001). We estimated a 57% reduction in CT use and radiation exposure if US were to be performed initially; this would lead to a 45% decrease in imaging costs at our institution. CONCLUSIONS: Screening US should be considered first for diagnosing appendicitis because of its high positive predictive value, but even if US results are negative for appendicitis, one should not exclude the possible existence of pathology because US has poor sensitivity in this situation. We speculate that the use of screening US can decrease radiation exposure, imaging costs, and LOS.

Right ventricular dilatation on bedside echocardiography performed by emergency physicians aids in the diagnosis of pulmonary embolism.

STUDY OBJECTIVE: The objective of this study was to determine the diagnostic performance of right ventricular dilatation identified by emergency physicians on bedside echocardiography in patients with a suspected or confirmed pulmonary embolism. The secondary objective included an exploratory analysis of the predictive value of a subgroup of findings associated with advanced right ventricular dysfunction (right ventricular hypokinesis, paradoxical septal motion, McConnell's sign). METHODS: This was a prospective observational study using a convenience sample of patients with suspected (moderate to high pretest probability) or confirmed pulmonary embolism. Participants had bedside echocardiography evaluating for right ventricular dilatation (defined as right ventricular to left ventricular ratio greater than 1:1) and right ventricular dysfunction (right ventricular hypokinesis, paradoxical septal motion, or McConnell's sign). The patient's medical records were reviewed for the final reading on all imaging, disposition, hospital length of stay, 30-day inhospital mortality, and discharge diagnosis. RESULTS: Thirty of 146 patients had a pulmonary embolism. Right ventricular dilatation on echocardiography had a sensitivity of 50% (95% confidence interval [CI] 32% to 68%), a specificity of 98% (95% CI 95% to 100%), a positive predictive value of 88% (95% CI 66% to 100%), and a negative predictive value of 88% (95% CI 83% to 94%). Positive and negative likelihood ratios were determined to be 29 (95% CI 6.1% to 64%) and 0.51 (95% CI 0.4% to 0.7%), respectively. Ten of 11 patients with right ventricular hypokinesis had a pulmonary embolism. All 6 patients with McConnell's sign and all 8 patients with paradoxical septal motion had a diagnosis of pulmonary embolism. There was a 96% observed agreement between coinvestigators and principal investigator interpretation of images obtained and recorded. CONCLUSION: Right ventricular dilatation and right ventricular dysfunction identified on emergency physician performed echocardiography were found to be highly specific for pulmonary embolism but had poor sensitivity. Bedside echocardiography is a useful tool that can be incorporated into the algorithm of patients with a moderate to high pretest probability of pulmonary embolism.

The man with a persistently runny nose.

Cerebrospinal fluid (CSF) rhinorrhea is rarely seen in the emergency department (ED) and most often occurs after a traumatic event. Spontaneous CSF leaks are much less common and are often the result of benign intracranial hypertension. If not recognized early on, CSF infections are the most serious consequence of this condition and therefore its early diagnosis and treatment are essential. This case report describes a patient who presented to the ED with a CSF leak not caused by a traumatic event. The patient presented with persistent unilateral rhinorrhea and headache that had previously been misdiagnosed. It describes the importance of early diagnosis and treatment of this serious condition. This is a case report of an uncommon but potentially dangerous disease that carries high morbidity if not diagnosed and treated early. This disease must be considered in the differential diagnosis of any patient who presents with persistent atraumatic unilateral rhinorrhea. Although CSF leaks have been portrayed in the literature, this case report is unique because it describes a rare manifestation of this condition and its diagnosis by emergency physicians. This article presents the case, discusses the incidence, potential causes, predisposing factors, diagnostic modalities and the course of treatment for this particular diagnosis.

Optic neuritis diagnosed by bedside emergency physician-performed ultrasound: a case report.

BACKGROUND: Optic neuritis is an inflammatory demyelinating condition of the optic nerve that causes subacute visual loss. It is often the result of an underlying systemic condition, such as multiple sclerosis. Due to the possible long-term morbidity associated with this condition, it is essential that the emergency physician recognizes the diagnosis and expedites treatment. OBJECTIVE: This case report describes optic neuritis diagnosed at the bedside by emergency physician-performed ultrasound. CASE REPORT: This is a case report of a young man presenting with unilateral painful vision loss. Optic neuritis must be considered in the differential diagnosis of any young patient who presents with visual complaints without any other neurologic findings. This report is unique because there are very few cases describing the findings of optic neuritis on emergency physician-performed bedside ultrasound in the literature. CONCLUSIONS: This article presents the case, describes diagnostic modalities, especially the use of ultrasound in its diagnosis, and the course of treatment for this particular condition.

Paget-Schroetter syndrome diagnosed by bedside emergency physician performed ultrasound: a case report.

BACKGROUND: Paget-Schroetter syndrome, or an upper-extremity deep venous thrombosis (UEDVT), occurs in young people after strenuous repetitive activity involving the upper extremity. The long-term morbidity and mortality of this condition is similar to the effects of lower-extremity DVT and therefore, its early diagnosis and treatment are essential. OBJECTIVES: This case report describes Paget-Schroetter syndrome (effort thrombosis) diagnosed at the bedside by Emergency Physician performed ultrasound. CASE REPORT: This is a case report of an uncommon but potentially dangerous disease that carries high morbidity if not diagnosed and treated early. Emergency Physicians should be aware of this condition in any young patient who presents with upper-extremity complaints with a history of repetitive use. Although the role of ultrasound in the diagnosis of lower-extremity DVT is well described, this case report is unique because it illustrates the diagnosis of Paget-Schroetter syndrome completed at the bedside. CONCLUSION: This article presents the case and discusses the incidence, potential causes, predisposing factors, diagnostic modalities, and the course of treatment for this particular diagnosis.

Extrauterine migration of a mirena® intrauterine device: a case report.

BACKGROUND: The extrauterine migration of an intrauterine device (IUD) can be life threatening and require emergent surgical intervention and treatment. Migration is usually the result of IUD expulsion or uterine perforation. OBJECTIVE: This case report describes a presentation of extrauterine migration of an IUD due to probable perforation. CASE REPORT: This is a case report of an uncommon but potentially dangerous outcome of IUD placement and use. The potential migration of an IUD and resultant uterine perforation must be considered in the differential diagnosis of any woman using this type of contraception who presents with abdominal pain. This report is unique due to the subtle presentation of a potentially life-threatening diagnosis. CONCLUSION: This article presents the case, discusses the incidence, potential causes, predisposing factors, diagnostic modalities, and the course of treatment for this particular diagnosis.

Evaluation of Gender Differences in Ultrasound Milestone Evaluations During Emergency Medicine Residency Training: A Multicenter Study.

OBJECTIVES: Prior literature has demonstrated incongruities among faculty evaluation of male and female residents' procedural competency during residency training. There are no known studies investigating gender differences in the assessment of procedural skills among emergency medicine (EM) residents, such as those required by ultrasound. The objective of this study was to determine if there are significant gender differences in ultrasound milestone evaluations during EM residency training. METHODS: We used a stratified, random cluster sample of Accreditation Council for Graduate Medical Education (ACGME) EM residency programs to conduct a longitudinal, retrospective cohort analysis of resident ultrasound milestone evaluation data. Milestone evaluation data were collected from a total of 16 ACGME-accredited EM residency programs representing a 4-year period. We stratified milestone data by resident gender, date of evaluation, resident postgraduate year, and cohort (residents with the same starting date). RESULTS: A total of 2,554 ultrasound milestone evaluations were collected from 1,187 EM residents (750 men [62.8%] and 444 women [37.1%]) by 104 faculty members during the study period. There was no significant overall difference in mean milestone score between female and male residents [mean difference = 0.01 (95% confidence interval {CI} = -0.04 to 0.05)]. There were no significant differences between female and male residents' mean milestone scores at the first (baseline) PGY1 evaluation (mean difference = -0.04 [95% CI = -0.09 to 0.003)] or at the final evaluation during PGY3 (mean difference = 0.02 [95% CI = -0.03 to 0.06)]. CONCLUSIONS: Despite prior studies suggesting gender bias in the evaluation of procedural competency during residency training, our study indicates that there were no significant gender-related differences in the ultrasound milestone evaluations among EM residents within training programs throughout the United States.

An Academic Relative Value Unit System: Do Transparency, Consensus, and Accountability Work?

INTRODUCTION: Academic medicine continues to struggle in its efforts to compensate scholarly productivity. Academic achievements receive less recognition compared to clinical work, evidenced by a lack of reduced clinical hours or financial incentive. Core departmental education responsibilities are often distributed inequitably across academic departments. An approach using an incentive program, which emphasizes transparency, equity, and consensus may help academic departments share core education responsibilities and reward scholarly activity. METHODS: We launched a two-stage approach to confront the inequitable distribution of educational responsibilities and to recognize the scholarly work among our faculty. In the first stage, baseline education expectations were implemented for all faculty members, which included accountability procedures tied to a financial incentive. The second stage involved the creation of an aAcademic rRelative vValue uUnit (ARVU) system which contained additional activities that were derived and weighted based on stakeholder consensus. The points earned in the ARVU system were applied towards additional financial incentive at academic year-end. We compared education contributions before and after implementation as well as total points earned in the ARVU system. RESULTS: In the first year of implementing education expectations, 87% of faculty fulfilled requirements. Those with a heavier clinical load made up the majority of deficient faculty. Those who did not meet education expectations were notified and had their year-end incentive reduced to reflect this. Faculty conference attendance increased by 21% (P<.001) and the number of resident assessments completed increased by 30% (P<.001) compared to the previous year. To date, faculty across the department have logged a total of 1,240 academic activities in the database, which will be converted into financial bonus amounts at year-end. CONCLUSION: We have seen significant increases in faculty participation in educational activities and learner assessments as well as documentation of activities in the ARVU system. A similar system using different specialty-specific activities may be generalizable and employed at other institutions.

Constructing a Shared Mental Model for Feedback Conversations: Faculty Workshop Using Video Vignettes Developed by Residents.

Introduction: Providing feedback is a fundamental principle in medical education; however, as educators, our community lacks the necessary skills to give meaningful, impactful feedback to those under our supervision. By improving our feedback-giving skills, we provide concrete ways for trainees to optimize their performance, ultimately leading to better patient care. Methods: In this faculty development workshop, faculty groups used six feedback video vignettes scripted, enacted, and produced by residents to arrive at a shared mental model of feedback. During workshop development, we used qualitative analysis for faculty narratives combined with the findings from a focused literature review to define dimensions of feedback. Results: Twenty-three faculty (physical medicine and rehabilitation and neurology) participated in seven small-group workshops. Analysis of group discussion notes yielded 343 codes that were collapsed into 25 coding categories. After incorporating the results of a focused literature review, we identified 48 items grouped into 10 dimensions of feedback. Online session evaluation indicated that faculty members liked the workshop's format and thought they were better at providing feedback to residents as a result of the workshop. Discussion: Small faculty groups were able to develop a shared mental model of dimensions of feedback that was also grounded in medical education literature. The theme of specificity of feedback was prominent and echoed recent medical education research findings. Defining performance expectations for feedback providers in the form of a practical and psychometrically sound rubric can enhance reliable scoring of feedback performance assessments and should be the next step in our work.

The association of coagulopathy and traumatic brain injury in patients with isolated head injury.

UNLABELLED: The emergence of prothrombotic agents (e.g. activated factor VII) to treat traumatic brain injury (TBI) requires a better understanding of the association of coagulopathy with isolated head injury (IHI). OBJECTIVE: To investigate the association of IHI and coagulopathy. METHODS: Prospective, observational study in an urban level I trauma center. INCLUSION CRITERIA: Adult (> or = 13 years of age) patients with IHI. EXCLUSION CRITERIA: patients with known coagulopathies or on anticoagulant therapy. PREDICTOR VARIABLES: TBI (head abbreviated injury severity score > 2, or brain hematoma on CT scan), age, gender, mechanism of injury, Glasgow Coma Score (GCS), and loss of consciousness (LOC). OUTCOME VARIABLES: coagulopathy defined as elevated International Normalized Ratio (INR > 1.3) or activated partial thromboplastin time (PTT) greater than 34 s. We divided IHI subjects into two groups of patients with and without TBI. STATISTICAL ANALYSIS: Fisher's exact test and Mann-Whitney U were used to compare data where appropriate (alpha: 0.05, two-tailed). RESULTS: From July 2005 to December 2006, 276 patients with IHI were studied. The median age was 35 years (interquartile range: 25-52) with a 79% male predominance and 88% blunt trauma. Eight percent (95% CI, 5-12%) of patients had coagulopathy. The rate of coagulopathy in TBI patients (17%) was significantly higher than non-TBI patients (6%) (11% difference, 95% CI, 3-20%]. The relative risk of coagulopathy in TBI patients was 2.9 (95% CI, 1.3-6.6). CONCLUSION: Coagulopathy as defined by elevated INR and/or PTT is associated with TBI after isolated head injury.

Identifying traumatic brain injury in patients with isolated head trauma: are arterial lactate and base deficit as helpful as in polytrauma?

BACKGROUND: Increase in lactate (LAC) within the central nervous system after head trauma is an established marker of traumatic brain injury (TBI). OBJECTIVE: To investigate the utility of arterial base deficit (BD) and LAC in identifying TBI in patients with isolated head injury (IHI). MATERIALS AND METHODS: TBI was defined as Glasgow Coma Scale < or =8, head Abbreviated Injury Severity Score >2 or brain haematoma on CT scan. Patients were divided into two groups: IHI with and without TBI. Data were reported as means (SDs). 131 patients with IHI were studied (mean (SD) age 39 (19) years, 78% male). RESULTS: 17% of the patients sustained TBI. The mean differences for arterial BD (0.65 mmol/l, 95% CI -0.8 to 2.1) and LAC (0.34 mmol/l, 95% CI -0.7 to 1.4) in patients with and without TBI were not significant. Analysis of receiver operating characteristic curves confirmed that arterial BD and LAC were unable to detect TBI in patients with IHI. CONCLUSION: Arterial BD and LAC are poor predictors of TBI in isolated head trauma.

Ultrasound vs. Computed Tomography for Severity of Hydronephrosis and Its Importance in Renal Colic.

INTRODUCTION: Supporting an "ultrasound-first" approach to evaluating renal colic in the emergency department (ED) remains important for improving patient care and decreasing healthcare costs. Our primary objective was to compare emergency physician (EP) ultrasound to computed tomography (CT) detection of hydronephrosis severity in patients with suspected renal colic. We calculated test characteristics of hydronephrosis on EP-performed ultrasound for detecting ureteral stones or ureteral stone size >5mm. We then analyzed the association of hydronephrosis on EP-performed ultrasound, stone size >5mm, and proximal stone location with 30-day events. METHODS: This was a prospective observational study of ED patients with suspected renal colic undergoing CT. Subjects had an EP-performed ultrasound evaluating for the severity of hydronephrosis. A chart review and follow-up phone call was performed. RESULTS: We enrolled 302 subjects who had an EP-performed ultrasound. CT and EP ultrasound results were comparable in detecting severity of hydronephrosis (x2=51.7, p<0.001). Hydronephrosis on EP-performed ultrasound was predictive of a ureteral stone on CT (PPV 88%; LR+ 2.91), but lack of hydronephrosis did not rule it out (NPV 65%). Lack of hydronephrosis on EP-performed ultrasound makes larger stone size >5mm less likely (NPV 89%; LR- 0.39). Larger stone size > 5mm was associated with 30-day events (OR 2.30, p=0.03). CONCLUSION: Using an ultrasound-first approach to detect hydronephrosis may help physicians identify patients with renal colic. The lack of hydronephrosis on ultrasound makes the presence of a larger ureteral stone less likely. Stone size >5mm may be a useful predictor of 30-day events.

Transforming Learning Anatomy: Basics of Ultrasound Lecture and Abdominal Ultrasound Anatomy Hands-on Session.

INTRODUCTION: As point-of-care ultrasound units become more compact and portable, clinicians in over 20 different medical and surgical specialties have begun using the technology in diverse clinical applications. However, a knowledge gap still exists between what medical students are learning in their undergraduate medical education curriculum and the clinical skills required for practice. Over the last 10 years, point-of-care ultrasound content has been slowly incorporated into undergraduate medical education, yet only a handful of medical schools have developed ultrasound curricula. This module was developed at our institution in response to survey feedback from medical students overwhelmingly requesting preclerkship ultrasound education. The target audience for this module is first-year medical students with no prior ultrasound exposure. METHODS: The module consists of a 1-hour introductory lecture and a 1-hour hands-on session during the abdominal anatomy course. Associated materials include the introductory lecture, presenter notes for the introductory lecture, instructor guidelines for the hands-on session, hands-on session setup instructions, a student handout for the hands-on session, and a module evaluation form. RESULTS: We have successfully implemented this module for the past 3-years and learner feedback has been overwhelmingly positive. Learner comments on a postmodule survey included, "Great job of explaining the science behind ultrasounds as well as how to interpret the images." DISCUSSION: As a result of our first-year students' evaluation responses, this module has been incorporated into our medical school's anatomy course.

Sonographic diagnosis of pneumothorax.

Lung sonography has rapidly emerged as a reliable technique in the evaluation of various thoracic diseases. One important, well-established application is the diagnosis of a pneumothorax. Prompt and accurate diagnosis of a pneumothorax in the management of a critical patient can prevent the progression into a life-threatening situation. Sonographic signs, including 'lung sliding', 'B-lines' or 'comet tail artifacts', 'A-lines', and 'the lung point sign' can help in the diagnosis of a pneumothorax. Ultrasound has a higher sensitivity than the traditional upright anteroposterior chest radiography (CXR) for the detection of a pneumothorax. Small occult pneumothoraces may be missed on CXR during a busy trauma scenario, and CXR may not always be feasible in critically ill patients. Computed tomography, the gold standard for the detection of pneumothorax, requires patients to be transported out of the clinical area, compromising their hemodynamic stability and delaying the diagnosis. As ultrasound machines have become more portable and easier to use, lung sonography now allows a rapid evaluation of an unstable patient, at the bedside. These advantages combined with the low cost and ease of use, have allowed thoracic sonography to become a useful modality in many clinical settings.

Identification of Sonographic B-lines with Linear Transducer Predicts Elevated B-Type Natriuretic Peptide Level.

OBJECTIVE: This study sought to correlate the presence of pleural-based B-lines seen by emergency department ultrasound performed with the linear transducer with B-type natriuretic peptide (BNP) level in patients with suspected congestive heart failure. METHODS: The study was a prospective convenience sample on adult patients in an academic, urban emergency department with over 100,000 annual patient visits. Adult patients with a BNP level ordered by the treating physician were prospectively enrolled by one of four physicians, blinded to the BNP level. The enrolling physicians included an emergency ultrasound director, two emergency ultrasound fellows, and a senior emergency medicine resident. Bedside ultrasound was performed using a 3-12 MHz linear broadband transducer in four lung fields. The serum BNP level was correlated with bilateral B-lines, defined as three or more comet-tail artifacts arising from the pleural line extending to the far field without a decrease in intensity on the right and left thorax. RESULTS: Sixty three patients were consented and enrolled during a four-month period. Fifteen patients had the presence of bilateral B-lines. The median BNP in patients with bilateral B-lines was 1560 pg/mL (95% confidence interval (CI) 1141-3706 pg/mL), compared with 538 pg/mL (95% confidence interval 310-1917 pg/mL) in patients without B-lines. The distributions in the two groups differed significantly (p=0.0006). Based on the threshold level of BNP 500 pg/mL, the sensitivity of finding bilateral B-lines on ultrasound was 33.3% (95% CI: 0.19-0.50), and the specificity was 91.7% (95% CI: 0.73-0.99). In addition, bilateral B-lines were absent in all patients with a BNP<100 pg/mL. CONCLUSION: The presence of bilateral B-lines identified with the linear probe is associated with significantly higher BNP levels than patients without B-lines. In our patient population, the presence of B-lines was specific but not sensitive for BNP>500. Further research may show that it can be applied to quickly assess patients with undifferentiated dyspnea.