scholarly journals The role of point-of-care ultrasound in the diagnosis of pericardial effusion: a single academic center retrospective study

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Matthew G. Hanson ◽  
Barry Chan
Keyword(s):  
Pericardial Effusion ◽  
Point Of Care ◽  
Physical Exam ◽  
Right Atrial ◽  
Point Of Care Ultrasound ◽  
X Ray ◽  
Average Systolic Blood Pressure ◽  
Time To Diagnosis ◽  
Clinically Significant ◽  
The Impact

Abstract Background Symptomatic pericardial effusion (PCE) presents with non-specific features and are often missed on the initial physical exam, chest X-ray (CXR), and electrocardiogram (ECG). In extreme cases, misdiagnosis can evolve into decompensated cardiac tamponade, a life-threatening obstructive shock. The purpose of this study is to evaluate the impact of point-of-care ultrasound (POCUS) on the diagnosis and therapeutic intervention of clinically significant PCE. Methods In a retrospective chart review, we looked at all patients between 2002 and 2018 at a major Canadian academic hospital who had a pericardiocentesis for clinically significant PCE. We extracted the rate of presenting complaints, physical exam findings, X-ray findings, ECG findings, time-to-diagnosis, and time-to-pericardiocentesis and how these were impacted by POCUS. Results The most common presenting symptom was dyspnea (64%) and the average systolic blood pressure (SBP) was 120 mmHg. 86% of people presenting had an effusion > 1 cm, and 89% were circumferential on departmental echocardiogram (ECHO) with 64% having evidence of right atrial systolic collapse and 58% with early diastolic right ventricular collapse. The average time-to-diagnosis with POCUS was 5.9 h compared to > 12 h with other imaging including departmental ECHO. Those who had the PCE identified by POCUS had an average time-to-pericardiocentesis of 28.1 h compared to > 48 h with other diagnostic modalities. Conclusion POCUS expedites the diagnosis of symptomatic PCE given its non-specific clinical findings which, in turn, may accelerate the time-to-intervention.

Abstract 16244: Point of Care Ultrasound of the Jugular Venous Pulse in the Upright Position (u 2 Jvp) Predicts Elevated Right Atrial Pressure and Pulmonary Capillary Wedge Pressure on Right Heart Catheterization in Obese and Non-obese Patients

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Libo Wang ◽  
Jonathan Harrison ◽  
Elizabeth Dranow ◽  
Lillian Khor
Keyword(s):  
Heart Failure ◽  
Predictive Value ◽  
Point Of Care ◽  
Right Heart Catheterization ◽  
Upright Position ◽  
Right Atrial ◽  
Heart Catheterization ◽  
Point Of Care Ultrasound ◽  
Right Heart ◽  
Clinically Significant

Introduction: Accurate intravascular volume status assessment is central to heart failure management, but current non-invasive bedside techniques remain a challenge. The visual inspection of jugular venous pulsation (JVP) in a reclined position and measuring its height from the sternal notch has been used as a surrogate for right atrial pressure (RAP). There are no studies on the predictive value of a visible internal jugular vein (IJV) in the upright position (U 2 JVP). Hypothesis: Point of care ultrasound (POCUS) for volume assessment in the upright position is predictive of clinically significant hypervolemia. Methods: Adult patients undergoing right heart catheterization (RHC) were enrolled prior for IJV imaging with point of care ultrasound (POCUS) device, Butterfly iQ™. The IJV and its size in comparison to the carotid artery was identified on ultrasound with the patient upright. Elevated RAP and PCWP was present if the IJV was still visible and not collapsed throughout the entirety of the respiratory cycle. Valsalva was used to confirm the position of a collapsed IJV. Results: 72 participants underwent U 2 JVP assessment on the same day prior to RHC. Average BMI was 31.9 kg/m2. The area under the curve (AUC) of U 2 JVP predicting RAP greater than 10 mmHg and PCWP of 15 mmhg or higher on RHC was 0.78 (95% CI 0.66-0.9, p<0.001), with AUC of 0.86 and 0.74 for non-obese and obese subgroups respectively, p= 0.38. The finding of a visible U 2 JVP in the upright position was 70.6 % sensitive and 85.5 % specific with a negative predictive value of 90.4% for identifying both RAP greater than 10 mmHg and PCWP equal or greater than 15 mmHg. Conclusions: The U 2 JVP is novel and pragmatic bed-side approach to the assessment of clinically significant elevated intra-cardiac pressures in our increasingly obese heart failure population.

scholarly journals Shedding light on a hidden source of septic shock with POCUS

POCUS Journal ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 15-16
Author(s):  
Miguel Lourenço Varela, MD ◽  
Rita Martins Fernandes, MD ◽  
Maria Luísa Melão, MD ◽  
Javier Moreno, MD ◽  
Cristina Granja, MD, PhD
Keyword(s):  
Septic Shock ◽  
Point Of Care ◽  
Point Of Care Ultrasound ◽  
Unstable Condition ◽  
X Ray ◽  
Source Of Infection ◽  
Time To Diagnosis ◽  
Portable Chest ◽  
Chest X Ray ◽  
Tentative Diagnosis

A 77-year old male was admitted in the emergency department for septic shock, yet no clear source of infection was noted upon physical examination and a portable chest x-ray. Due to his unstable condition, bedside ultrasound was performed. A heterogeneous mass in the liver was noted, hence a tentative diagnosis of liver abscess was made. This was latter confirmed by abdominal computed tomography. This case highlights that point-of-care ultrasound, when performed by expert physicians, can significantly decrease time to diagnosis for septic patients. 

scholarly journals P025: Checking the pulse in the 21st century: inter-observer reliability of carotid pulse detection by point-of-care ultrasound

CJEM ◽  
2020 ◽  
Vol 22 (S1) ◽  
pp. S73-S74
Author(s):  
D. Smith ◽  
J. Chenkin ◽  
R. Simard
Keyword(s):  
Cardiac Arrest ◽  
Healthcare Provider ◽  
Point Of Care ◽  
Rank Test ◽  
Point Of Care Ultrasound ◽  
Current Standard ◽  
Observer Reliability ◽  
Pulse Palpation ◽  
Before And After ◽  
The Impact

Introduction: Detection of a pulse is crucial to decision-making in the care of patients who are in cardiac arrest, however, the current standard of manual pulse palpation is unreliable. An emerging alternative is the use of point-of-care ultrasound (POCUS) for direct assessment of the carotid pulse. The primary objective of this study is to determine the inter-observer reliability for healthcare provider interpretation of the carotid pulse by POCUS in patients who are peri-arrest or in cardiac arrest. Methods: We conducted a web-based survey of healthcare providers. Participants were shown a tutorial demonstrating POCUS detection of the carotid pulse and then asked to interpret 15 carotid pulse ultrasound clips from patients who were peri-arrest or in cardiac arrest. The primary outcome was inter-observer reliability for carotid pulse assessment. Secondary outcomes included inter-observer reliability stratified by healthcare provider role and POCUS experience, mean tutorial duration, mean pulse assessment duration, rate of pulse assessments < 10 seconds, and change in participant confidence before and after the study. Inter-observer reliability was determined by Krippendorff's α. Change in participant confidence was determined by Wilcoxon signed-rank test. Results: 68 participants completed our study, with a response rate of 75% (68/91). There was near perfect inter-observer reliability for pulse assessment amongst all study participants (α=0.874, 95% CI 0.869, 0.879). Senior residents (n = 24) and POCUS experts (n = 6) demonstrated the highest rates of inter-observer reliability, α=0.902 (95% CI 0.888, 0.914) and α=0.925 (95% CI 0.869, 0.972), respectively. All sub-groups had α greater than 0.8. Mean tutorial duration was 31 seconds (SD = 17.5) with maximum duration of 55 seconds. Mean pulse assessment duration was 7.7 seconds (SD = 5.2) with 76% of assessments completed within 10 seconds. Participant confidence before and after the study significantly increased from a median of 2 to a median of 4 on a 5-point Likert-type scale (z = 6.3, p < .001). Conclusion: Interpretation of the carotid pulse by POCUS showed near perfect inter-observer reliability for patients who were peri-arrest or in cardiac arrest. Participants required minimal training and indicated improved POCUS pulse assessment confidence after the study. Further work must be done to determine the impact of POCUS pulse assessment on the resuscitation of patients in cardiac arrest.

scholarly journals Simple Pneumonia or Something More?: A Case Report and Discussion of Unexpected Empyema Identified by Point-of-Care Ultrasound

CJEM ◽  
2015 ◽  
Vol 18 (5) ◽  
pp. 391-394
Author(s):  
Michael Romano ◽  
Tomislav Jelic ◽  
Jordan Chenkin
Keyword(s):  
Emergency Department ◽  
Point Of Care ◽  
Fluid Collection ◽  
Chest Ct ◽  
Point Of Care Ultrasound ◽  
X Ray ◽  
Level Of Consciousness ◽  
Chest X Ray ◽  
Ultrasound Assessment ◽  
Higher Sensitivity

AbstractThere is evidence to suggest that point-of-care ultrasound assessment of the lungs has a higher sensitivity and specificity than chest radiography for the diagnosis of pneumonia. It is unknown if the same is true for pneumonia complications. We present and discuss the case of a 61-year-old woman who presented to the emergency department with confusion, decreased level of consciousness, and signs of sepsis. A chest x-ray revealed a right sided infiltrate. An ultrasound of the patient’s lungs was performed, and revealed a complex loculated fluid collection consistent with an empyema. A chest CT confirmed the diagnosis, and immediate percutaneous drainage was performed.

scholarly journals It Is Always Early with Point-of-Care Ultrasound

2020 ◽  
Vol 2020 ◽  
pp. 1-3
Author(s):  
Zouheir Ibrahim Bitar ◽  
Tamer Mohamed Zaalouk ◽  
Ossama Sajeh Maadarani ◽  
Ragab Desouky Elshabasy
Keyword(s):  
Point Of Care ◽  
Care Physician ◽  
Point Of Care Ultrasound ◽  
Resonance Imaging ◽  
Critical Care Physician ◽  
Unstable Condition ◽  
Abdominal Magnetic Resonance Imaging ◽  
Source Of Infection ◽  
Time To Diagnosis ◽  
Tentative Diagnosis

A 56-year-old male was admitted to the emergency department for acute pulmonary edema and septic shock, yet no clear source of infection was noted upon physical examination. Due to his unstable condition, bedside ultrasound was performed. A heterogeneous mass in the liver was noted; hence, a tentative diagnosis of liver abscess was made. The abscess was confirmed by abdominal magnetic resonance imaging. Drainage of the abscess was attempted and guided by early ultrasound. This case highlights that point-of-care ultrasound, when performed by an ultrasound-capable critical care physician, can significantly decrease the time to diagnosis for septic patients.

Impact of a 4-hour Introductory eFAST Training Intervention Among Ultrasound-Naïve U.S. Military Medics

2020 ◽  
Vol 185 (5-6) ◽  
pp. e601-e608
Author(s):  
Jonathan D Monti ◽  
Michael D Perreault
Keyword(s):  
Outcome Measures ◽  
Point Of Care ◽  
Resident Physician ◽  
Secondary Outcome ◽  
Training Intervention ◽  
Point Of Care Ultrasound ◽  
Trauma Patients ◽  
Didactic Training ◽  
Combat Casualty ◽  
The Impact

Abstract Introduction Advances in the portability of ultrasound have allowed it to be increasingly employed at the point of care in austere settings. Battlefield constraints often limit the availability of medical officers throughout the operational environment, leading to increased interest in whether highly portable ultrasound devices can be employed by military medics to enhance their provision of combat casualty care. Data evaluating optimal training for effective medic employment of ultrasound is limited however. This prospective observational cohort study’s primary objective was to assess the impact of a 4-hour introductory training intervention on ultrasound-naïve military medic participants’ knowledge/performance of the eFAST application. Materials and Methods Conventional U.S. Army Medics, all naïve to ultrasound, were recruited from across JBLM. Volunteer participants underwent baseline eFAST knowledge assessment via a 50-question multiple-choice exam. Participants were then randomized to receive either conventional, expert-led classroom didactic training or didactic training via an online, asynchronously available platform. All participants then underwent expert-led, small group hands-on training and practice. Participants’ eFAST performance was then assessed with both live and phantom models, followed by a post-course knowledge exam. Concurrently, emergency medicine (EM) resident physician volunteers, serving as standard criterion for trained personnel, underwent the same OSCE assessments, followed by a written exam to assess their baseline eFAST knowledge. Primary outcome measures included (1) post-course knowledge improvement, (2) eFAST exam technical adequacy, and (3) eFAST exam OSCE score. Secondary outcome measures were time to exam completion and diagnostic accuracy rate for hemoperitoneum and hemopericardium. These outcome measures were then compared across medic cohorts and to those of the EM resident physician cohort. Results A total of 34 medics completed the study. After 4 hours of ultrasound training, overall eFAST knowledge among the 34 medics improved from a baseline mean of 27% on the pretest to 83% post-test. For eFAST exam performance, the medics scored an average of 20.8 out of a maximum of 22 points on the OSCE. There were no statistically significant differences between the medics who received asynchronous learning versus traditional classroom-based learning, and the medics demonstrated comparable performance to previously trained EM resident physicians. Conclusions A 4-hour introductory eFAST training intervention can effectively train conventional military medics to perform the eFAST exam. Online, asynchronously available platforms may effectively mitigate some of the resource requirement burden associated with point-of-care ultrasound training. Future studies evaluating medic eFAST performance on real-world battlefield trauma patients are needed. Skill and knowledge retention must also be assessed for this degradable skill to determine frequency of refresher training when not regularly performed.

scholarly journals Point of Care Ultrasound First: An Opportunity to Improve Efficiency for Uncomplicated Pregnancy in the Emergency Department

POCUS Journal ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 42-44
Author(s):  
Sara Urquhart ◽  
Kendall Stevens ◽  
Mariah Barnes ◽  
Matthew Flannigan
Keyword(s):  
Emergency Department ◽  
Random Sample ◽  
Medical Center ◽  
Point Of Care ◽  
Tertiary Care ◽  
Radiology Department ◽  
Point Of Care Ultrasound ◽  
Tertiary Care Medical Center ◽  
Time To Diagnosis ◽  
Emergency Department Patients

Introduction: Research suggests emergency providers using point-of-care ultrasound (POCUS) to confirm an uncomplicated intrauterine pregnancy (IUP) can decrease emergency department (ED) length of stay (LOS) compared to a radiology department ultrasound (RADUS). The objective of this study was to compare the time to diagnosis and LOS between POCUS and RADUS patients. Methods: This was a retrospective study at one urban medical center. A standardized tool was used to abstract data from a random sample of pregnant patients diagnosed with uncomplicated IUP between January 2016 and December 2017 at a single tertiary care medical center. Microsoft Excel 2010 software was used to measure time intervals, prepare descriptive statistics, and perform Mann-Whitney U tests to compare differences. Results: A random sample of 836 (36%) of the 2,346 emergency department patients diagnosed with an IUP between 8-20 weeks’ gestation during the study period was evaluated for inclusion. Three hundred sixty-six met inclusion criteria and were included in the final analysis. Patients were divided into 2 groups based on which type of ultrasound scan they received first: POCUS (n=165) and RADUS (n=201). Patients who received POCUS were found to have an IUP identified in an average of 48 minutes (95% CI, 43 to 53), while the RADUS group’s mean time to diagnosis was 120 minutes (95% CI 113 to 127) with a difference of 72 minutes (95% CI, 63 to 80; p<0.001). The mean LOS for patients who received POCUS was 132 minutes (95% CI, 122 to 142), while that of the RADUS group was 177 minutes (95% CI 170 to 184) with a difference of 45 minutes (95% CI 32 to 56; p<0.001). The study is limited by its single-center, retrospective design and by lack of blinding of data abstractors. Conclusion: Pregnant emergency department patients diagnosed with an uncomplicated IUP between 8-weeks and 20-weeks’ gestation had statistically significant reduction in time to diagnosis and disposition from the ED if assessed with POCUS as compared to RADUS.

scholarly journals Novel Point-of-Care Ultrasound (POCUS) Technique to Modernize the JVP Exam and Rule out Elevated Right Atrial Pressures

2021 ◽  
Author(s):  
Larry Istrail ◽  
Maria Stepanova
Keyword(s):  
Right Atrium ◽  
Point Of Care ◽  
Venous Pressure ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Right Atrial ◽  
Point Of Care Ultrasound ◽  
Status Assessment ◽  
Left Ventricular Outflow ◽  
The Right

Accurate assessment of the jugular venous pressure (JVP) and right atrial pressure (RAP) has relied on the same bedside examination method since 1930. While this technique provides a rough estimate of right-sided pressures, it is limited by poor sensitivity and overall diagnostic inaccuracy. The internal jugular vein (IJV) is difficult to visualize in many patients and relies on an incorrect assumption that the right atrium lies 5 centimeters below the sternum. Point-of-care ultrasound (POCUS) offers an alternative method for more precisely estimating JVP and RAP. We propose a novel method of measuring the right atrial depth (RAD) using a sonographic measurement of the depth of the posterior left ventricular outflow tract as a surrogate landmark to the center of the right atrium when viewed in the parasternal long axis view. This is combined with determination if JVD was present at the supraclavicular point. Sensitivity, specificity, PPV, NPV of JVD at the supraclavicular point was 70%, 76%, 59%, 91% respectively. These values were confounded by the lack of standardization of zero reference landmarks (ZRLs) used during the right heart catheterizations. When the RAD estimate was adjusted to account for measurement error the sensitivity of JVD at supraclavicular point for elevated RAP improved to 90% with negative predictive value of 96%. This may offer a rapid and reliable method for ruling out elevated RAP and increase objectivity in our volume status assessment.

scholarly journals Editorial Volume 19 Issue 1 – “Eternal Winter”: Acute Medicine the key to providing longer periods of summer

2020 ◽  
Vol 19 (1) ◽  
pp. 2-3
Author(s):  
Tim Cooksley ◽  
Keyword(s):  
Respiratory Rate ◽  
Ambulatory Care ◽  
Acute Care ◽  
Point Of Care ◽  
Point Of Care Ultrasound ◽  
Point Of Care Testing ◽  
Acute Medicine ◽  
Care Services ◽  
Acute Care Services ◽  
The Impact

As another winter season passes, many colleagues will continue to be working under immense pressures striving to provide high quality care for increasingly larger numbers of patients. The work of Acute Medicine teams to keep the “front door” safe are fundamental to the delivery and sustainability of acute care services. The challenges of innovating and enacting positive changes at times of such high service demand are not insignificant; but the specialty is blessed with rapidly expanding driven and dedicated international, national and local leaders. The first winter SAMBA has recently been performed. SAMBA is an increasingly rich data source that will serve both nationally and locally to help improve performance and ultimately patient outcomes.1 Higher quality Acute Medicine is being produced. Acute Physicians are leading in many acute sub-specialties. Pleasingly, there has a been a significant rise in the number of trainees applying to train in Acute Medicine in the UK reflecting the traction the specialty is achieving. Ambulatory care remains a fundamental tenet to the sustainability of acute care services. Point of care testing is a key element in driving efficient performance in this setting and in this issue Verbakel et al. perform an important analysis on the reliability of point of care testing to support community based ambulatory care.2 This work should field the way for further research defining the impact of point of care testing and how it should be implemented in ambulatory clinical practice. The performance of respiratory rate observation remains poorly performed in acute care settings despite its well validated predictive value. Nakitende et al. describe an app that allows respiratory rate to calculated more quickly and accurately by using a touch screen method.3 Technological innovations to improve the recording and accuracy of physiological parameters in acute care, which can also be used in resource poor settings, will be a focus of large quantities of research in the upcoming years. Blessing et al. describe an important modelling study on the impact of integrated radiology units.4 Co-ordination between Acute Medicine and Radiology departments is essential in a high functioning AMU, especially as increasingly Acute Physicians are trained in point of care ultrasound. Lees-Deutsch et al. provide a fascinating insight into the patient’s perspective of discharge lounges.5 Often used to help maintain flow through the hospital, they elucidate that patients and caregivers transferred from AMU do not find this aspect of their journey a positive one. In times of significant organisational pressures, it is important that clinicians continue to examine the impact of flow measures on the quality of patient care and experience.

Sign in / Sign up

Export Citation Format

Share Document