Acute or chronic? Failing left ventricle in a 34 year old

Submission content Introduction: An unusual case of a very young patient without previously known cardiac disease presenting with severe left ventricular failure, detected by a point of care echocardiogram. Main Body: A 34 year old previously well man was brought to hospital after seeing his general practitioner with one month of progressive shortness of breath on exertion. This began around the time the patient received his second covid-19 vaccination. He was sleeping in a chair as he was unable to lie flat. Abnormal observations led the GP to call an ambulance. In the emergency department, the patient required oxygen 5L/min to maintain SpO2 >94%, but he was not in respiratory distress at rest. Blood pressure was 92/53mmHg, mean 67mmHg. Point of care testing for COVID-19 was negative. He was alert, with warm peripheries. Lactate was 1.0mmol/L and he was producing more than 0.5ml/kg/hr of urine. There was no ankle swelling. ECG showed sinus tachycardia. He underwent CT pulmonary angiography which demonstrated no pulmonary embolus, but there was bilateral pulmonary edema. Troponin was 17ng/l, BNP was 2700pg/ml. Furosemide 40mg was given intravenously by the general medical team. Critical care outreach asked for an urgent intensivist review given the highly unusual diagnosis of pulmonary edema in a man of this age. An immediate FUSIC Heart scan identified a dilated left ventricle with end diastolic diameter 7cm and severe global systolic impairment. The right ventricle was not severely impaired, with TAPSE 18mm. There was no significant pericardial effusion. Multiple B lines and trace pulmonary effusions were identified at the lung bases. The patient was urgently discussed with the regional cardiac unit in case of further deterioration, basic images were shared via a cloud system. A potential diagnosis of vaccination-associated myocarditis was considered,1 but in view of the low troponin, the presentation was felt most likely to represent decompensated chronic dilated cardiomyopathy. The patient disclosed a family history of early cardiac death in males. Aggressive diuresis was commenced. The patient was admitted to a monitored bed given the potential risk of arrhythmia or further haemodynamic deterioration. Advice was given that in the event of worsening hypotension, fluids should not be administered but the cardiac centre should be contacted immediately. Formal echocardiography confirmed the POCUS findings, with ejection fraction <35%. He was initiated on ACE inhibitors and beta adrenergic blockade. His symptoms improved and he was able to return home and to work, and is currently undergoing further investigations to establish the etiology of his condition. Conclusion(s): Early echocardiography provided early evidence of a cardiac cause for the patient's presentation and highlighted the severity of the underlying pathology. This directed early aggressive diuresis and safety-netting by virtue of discussion with a tertiary cardiac centre whilst it was established whether this was an acute or decompensated chronic pathology. Ultrasound findings: PLAX, PSAX and A4Ch views demonstrating a severely dilated (7cm end diastolic diameter) left ventricle with global severe systolic impairment.

A Freehand 3D Ultrasound Carotid Scanning System for Point-of-Care Ultrasonography

Stroke is a leading cause of morbidity and mortality throughout the world. Three-dimensional ultrasound (3DUS) imaging was shown to be more sensitive to treatment effect and more accurate in stratifying stroke risk than two-dimensional ultrasound (2DUS) imaging. Point-of-care ultrasound screening (POCUS) is important for patients with limited mobility and at times when the patients have limited access to the ultrasound scanning room, such as in the COVID-19 era. We used an optical tracking system to track the 3D position and orientation of the 2DUS frames acquired by a commercial wireless ultrasound system and subsequently reconstructed a 3DUS image from these frames. The tracking requires spatial and temporal calibrations. Spatial calibration is required to determine the spatial relationship between the 2DUS machine and the tracking system. Spatial calibration was achieved by localizing the landmarks with known coordinates in a custom-designed Z-fiducial phantom in an 2DUS image. Temporal calibration is needed to synchronize the clock of the wireless ultrasound system and the optical tracking system so that position and orientation detected by the optical tracking system can be registered to the corresponding 2DUS frame. Temporal calibration was achieved by initiating the scanning by an abrupt motion that can be readily detected in both systems. This abrupt motion establishes a common reference time point, thereby synchronizing the clock in both systems. We demonstrated that the system can be used to visualize the three-dimensional structure of a carotid phantom. The error rate of the measurements is 2.3%. Upon in-vivo validation, this system will allow POCUS carotid scanning in clinical research and practices. © 2023 SPIE.

Point-of-care echocardiography and thoracic ultrasound in the management of critically ill patients with COVID-19 infection: Experience in three regional UK intensive care units.

Introduction: Point-of-care ultrasound (POCUS) has an established role in the management of the critically ill. Information and experience of its use in those with COVID-19 disease is still evolving. We undertook a review of cardiac and thoracic ultrasound examinations in patients with COVID-19 on the intensive care unit (ICU). Our aim was to report key findings and their impact on patient management. Methods: A retrospective evaluation of critically ill patients with COVID-19 was undertaken in three adult ICUs, who received point-of-care cardiac and/or thoracic ultrasound during the 2019-2020 COVID-19 pandemic. We recorded baseline demographic data, principal findings, change in clinical management and outcome data. Results: A total of 55 transthoracic echocardiographic examinations scans were performed on 35 patients. 35/55 (64%) echocardiograms identified an abnormality, most commonly a dilated or impaired right ventricle (RV) and 39/55 (70%) scans resulted in a change in management. Nine patients (26%) were found to have pulmonary arterial thrombosis on CTPA or post-mortem. More than 50% of these patients showed evidence of right ventricular dilatation or impairment. Of the patients who were known to have pulmonary arterial thrombosis and died, 83% had evidence of right ventricular dilatation or impairment. 32 thoracic ultrasound scans were performed on 23 patients. Lung sliding and pleural thickening were present bilaterally in all studies. Multiple B-lines were present in all studies, and sub-pleural consolidation was present bilaterally in 72%. Conclusion: POCUS is able to provide useful and clinically relevant information in those critically ill with COVID-19 infection, resulting in change in management in a high proportion of patients. Common findings in this group are RV dysfunction, multiple B-lines and sub-pleural consolidation.

Determinants of point-of-care ultrasound lung sliding amplitude in mechanically ventilated patients.

BACKGROUND: Although lung sliding seen by point-of-care ultrasound (POCUS) is known to be affected to varying degrees by different physiologic and pathologic processes, it is typically only reported qualitatively in the critical care setting. Lung sliding amplitude quantitatively expresses the amount of pleural movement seen by POCUS but its determinants in mechanically ventilated patients are largely unknown. METHODS: This was a single-center, prospective, observational pilot study examining 40 hemithoraces in 20 adult patients receiving mechanical ventilation. Each subject had lung sliding amplitude measured in both B-mode and by pulsed wave Doppler at their bilateral lung apices and bases. Differences in lung sliding amplitude were correlated with anatomical location (apex vs base) as well as physiologic parameters including positive end expiratory pressure (PEEP), driving pressure, tidal volume and the ratio of arterial partial pressure of oxygen (PaO2) to fraction of inspired oxygen (FiO2). RESULTS: POCUS lung sliding amplitude was significantly lower at the lung apex compared to the lung base in both B-mode (3.6 ± 2.0 mm vs 8.6 ± 4.3 mm; p < 0.001) and the pulsed wave Doppler mode (10.3 ± 4.6 cm/s vs 13.9 ± 5.5 cm/s; p < 0.001) corresponding to expected distribution of ventilation to the lung bases. Inter-rater reliability of B-mode measurements was excellent (ICC = 0.91) and distance traversed in B-mode had a significant positive correlation with pleural line velocity (r2 = 0.32; p < 0.001). There was a non-statistically significant trend towards lower lung sliding amplitude for PEEP ≥ 10 cmH2O, as well as for driving pressure ≥ 15 cmH2O in both ultrasound modes. CONCLUSION: POCUS lung sliding amplitude was significantly lower at the lung apex than the lung base in mechanically ventilated patients. This was true when using both B-mode and pulsed wave Doppler. Lung sliding amplitude did not correlate with PEEP, driving pressure, tidal volume or PaO2:FiO2 ratio. Our findings suggest that lung sliding amplitude can be quantified in mechanically ventilated patients in a physiologically predictable way and with high inter-rater reliability. A better understanding of POCUS derived lung sliding amplitude and its determinants may aid in the more accurate diagnosis of lung pathologies, including pneumothorax, and could serve as a means of further reducing radiation exposure and improving outcomes in critically ill patients.

Development and interobserver reliability of a rating scale for lung ultrasound pathology in lower respiratory tract infection

Objectives The purpose of this study was to develop a severity rating scale for lung ultrasound pathology in lower respiratory tract infection based on multicenter expert consensus, and to test inter-rater reliability. Methods Ten point-of-care ultrasound experts from three academic institutions developed the scale iteratively through literature review, expert opinion, and pilot testing. Clips were prospectively collected from adults suspected of COVID-19 using a 14-zone scanning protocol. Blinded reviewers independently rated four data subsets. The rating scale was refined through eight consensus-building discussions reviewing challenging cases from the first three subsets. The final scale consisted of a set of ordinal scores from 0 to 4, for five sonographic findings: B-lines, pleural line abnormalities, consolidations, pleural effusions, and overall lung aeration. Ratings from the fourth subset were analyzed to determine reliability based on intraclass correlation coefficient (ICC). A total of 11,126 cine clips from 220 patients were acquired. Discussion After excluding uninterpretable clips, the test dataset contained 81 clips and yielded an average ICC of 0.70 across the five sonographic findings (0.76 for B-lines, 0.52 for pleural line abnormalities, 0.71 for consolidations, 0.80 for pleural effusions, and 0.70 for overall lung aeration). Improvements in agreement were observed with each successive review session and dataset rating. Conclusion The lung ultrasound severity scale established by multicenter expert consensus achieved moderate to good inter-rater reliability. The scale could be used clinically to standardize assessment of lower respiratory tract infection and in future studies to develop methods for automated interpretation of lung ultrasound pathology.

Developing Multidisciplinary Models of Care in Rheumatology at University College London Hospital: 18 Months of Learning from Conception to Delivery and Beyond

Background/Aims The COVID-19 pandemic has placed unprecedented pressures on NHS departments, with demand rapidly outstripping capacity. The British Society for Rheumatology 'Rheumatology Workforce: a crisis in numbers (2021)' highlighted the need to provide innovative ways of delivering rheumatology specialist care. At University College London Hospitals (UCLH) we created a rheumatology multidisciplinary team (MDT) clinic to meet rising demands on our service. The aims of the Rheumatology MDT clinic were to: reduce new appointment/follow-up waiting times, increase clinic capacity, incorporate musculoskeletal (MSK) point of care ultrasound, reduce number of hospital visits and add value to each clinic encounter. Methods We ran a 6-month pilot, supported by our outpatient transformation team, incorporating a Rheumatology Advanced Practice Physiotherapist (APP), Clinical Nurse Specialist (CNS) and MSK ultrasound within a Consultant clinic. The success of the pilot helped secure funding for a further 12 months. Over 18 months we have implemented: APP/Consultant enhanced triage - up to 40% of referrals were appropriate for APP assessment, including regional MSK problems and back pain. This increased capacity for consultant-led appointments. Standardisation of time-lapse between CNS and consultant follow-up appointments to ensure appropriate spacing between patient encounters. Facilitated overbooking of urgent cases afforded by additional capacity provided by the APP. MSK ultrasound embedded in the clinic template. 'Zoom' patient education webinars facilitated by MDT members and wider disciplines e.g. dietetics, to empower self-management and reduce the administrative burden of patient emails/phone calls occurring outside the clinic. Patient participation sessions and feedback to help shape the service. Results During the 6-month pilot we reduced our waiting time for follow-up appointments from 9 months to 2. We now have capacity to book 1-2 urgent cases each week. Pre-MDT the average wait from consultant referral to physiotherapist appointment was 55 days. The MDT allows for same day assessment (reducing 2-3 patient journeys a clinic) and where suitable, facilitates discharge or onwards referral to the appropriate service. A dedicated MDT CNS has shortened treatment times, reduced email traffic between CNS and consultant and allows for same day, joint decision-making resulting in fewer appointments. Zoom webinar feedback has been positive. Patients value the broad expertise of allied health professionals which supports self-management. Embedding ultrasound allows for same day diagnostics, decreased referrals to radiology and reduced hospital visits. Conclusion Our MDT model has reduced waiting lists, decreased treatment delays and cut hospital attendances. Point of care ultrasound allows for same day decision making and abolishes the cost and diagnostic delay associated with referrals to radiology or outsourced providers. Shared decision-making adds value to outpatient attendances, which is reflected in patients' positive feedback. The MDT model maximises the existing workforce skill set by enhancing the APP and CNS role, allowing patients immediate access to their expertise.

Personalized Mechanical Ventilation: Improving Quality of Care

In dealing with the unprecedented COVID-19 pandemic, there are an increased number of patients requiring personalized management as the disease pathology varies. With variable lung compliance and airway resistance as well as the severity of the disease, one size will not fit all patients. This book is problem-oriented with evidence-based discussions of the daily encountered scenarios in the ICU for mechanically ventilated patients, dealing with the pathology, monitoring and troubleshooting facing intensivists daily. These scenarios are managed utilizing a goal-directed approach and algorithms to achieve these goals. All chapters contain an explanation of a different solution illustrating the respiratory mechanics, physiology and pathology involved in such a scenario. Each chapter also closes with a take-home message to summarize the content. In addition to describing the ventilation of different patient categories, this text also features ventilation cases specific to COVID-19 including airway management in the enhanced air born isolated patient, pulmonary embolism, different states of shock and differential lung ventilation. There is also a specific chapter on monitoring mechanical ventilation with point of care ultrasound, which is an available modality in most ICUs. Another unique chapter describes how to connect more than one patient to one ventilator in case of a shortage of machines. Written by experts in the field, Personalized Mechanical Ventilation is a timely and valuable resource for critical care physicians, nurses and respiratory therapists on the front lines of both COVID-19 and day-to-day care of mechanically ventilated patients in the ICU. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.

Lung Ultrasound in Critical Care and Emergency Medicine: Clinical Review.

Lung ultrasound has become a part of the daily examination of physicians working in intensive, sub-intensive, and general medical wards. The easy access to hand-held ultrasound machines in wards where they were not available in the past facilitated the widespread use of ultrasound, both for clinical examination and as a guide to procedures; among point-of-care ultrasound techniques, the lung ultrasound saw the greatest spread in the last decade. The COVID-19 pandemic has given a boost to the use of ultrasound since it allows to obtain a wide range of clinical information with a bedside, not harmful, repeatable examination that is reliable. This led to the remarkable growth of publications on lung ultrasounds. The first part of this narrative review aims to discuss basic aspects of lung ultrasounds, from the machine setting, probe choice, and standard examination to signs and semiotics for qualitative and quantitative lung ultrasound interpretation. The second part focuses on how to use lung ultrasound to answer specific clinical questions in critical care units and in emergency departments.

Point of care ultrasound findings in critically ill SARS-COV2 patients in an HIV endemic, resourced constrained setting.

Objectives: To describe the incidence of venous thromboembolism (VTE) in mechanically ventilated COVID-19 patients in an HIV endemic, resourced constrained setting. To describe the incidence of VTE in relation to HIV status and anticoagulant therapy, and to evaluate VTE-associated cardio-respiratory changes. To establish the contribution of HIV, anticoagulation therapy and other risk factors to mortality. Design: Prospective descriptive study. Setting: Single-center tertiary teaching hospital. Participants: One hundred and one consecutively admitted critically ill adult patients with COVID-19 acute respiratory distress syndrome. Interventions: Point of care ultrasound (POCUS) assessment of the lower limbs and the cardio-respiratory system was performed on intensive care unit (ICU) admission and repeated if clinically indicated. Measurements and main results: DVT was diagnosed by POCUS, whilst pulmonary embolism was diagnosed using a combination of clinical criteria and POCUS (echocardiography and chest wall ultrasound). VTE was diagnosed in 16/101 (16%) patients, despite 14/16 (88%) receiving prior therapeutic dosage of low molecular weight heparin. Clinically significant PE was diagnosed in 5/16 (31%) with 11/16 (69%) having DVT only. The majority of VTE patients, 12/16 (75%), demised 16/101 (16%) patients had HIV co-infection, and 4/16 (25%) with HIV had VTE. Valvular abnormalities were the most common cardiac abnormality with marked tricuspid regurgitation detected in 51/101 (51%). The absence of right atrial enlargement had a 93% negative predictive value for the absence of VTE. Univariate analysis did not demonstrate statistically significant individual risk factors for mortality. Conclusions: Mechanically ventilated COVID- 19 patients at ICU admission had a low incidence of VTE (16%). Therapeutic dose anticoagulation did not reduce mortality compared to prophylactic dosage. In contrast to findings from other studies, no individual risk factor contributed significantly to mortality, likely due to small sample size. POCUS is an ideal screening tool to aid in the assessment of critically ill patients.

Ten Influential Point-of-Care Ultrasound Papers: 2022 in Review.

Keeping up with the latest developments in the point-of-care ultrasound (POCUS) literature is challenging, as with any area of medicine. Our group of POCUS experts has selected 10 influential papers from the past 12 months and provided a short summary of each. We hope to provide emergency physicians, intensivists, and other acute care providers with a succinct update concerning some key areas of ultrasound interest.

POINT OF CARE MATERNAL ULTRASOUND IN OBSTETRICS.

Ultrasound is the hallmark imaging modality traditionally used by obstetricians for fetal diagnosis and surveillance. The COVID-19 pandemic highlighted the role of point of care ultrasound (POCUS) for expeditious assessment of maternal cardiopulmonary status. The familiarity of obstetricians with ultrasound coupled with the availability of ultrasound equipment without the need to transport the patient make POCUS particularly valuable on labor and delivery. The rising contribution of cardiopulmonary disorders to maternal morbidity and mortality carves out many potential applications for POCUS on labor and delivery. Obstetricians have access to the technology and skills to obtain the basic views required to assess for the presence of pulmonary edema, ventricular dysfunction, or intraabdominal free fluid. POCUS can routinely be used for the evaluation of pulmonary complaints or in the assessment of hypotension and may play an essential role in the diagnosis and management of life-threatening emergencies such as shock, amniotic fluid embolism, or cardiac arrest. We review the currently established POCUS protocols for the evaluation of cardiopulmonary complaints through the lens of the obstetrician. We call upon educators and academic leaders to incorporate maternal POCUS into existing curricula. POCUS is of enormous value for providers with limited access to diagnostic imaging or subspecialty providers. With the growing complexity of the obstetric population, acquiring clinical skills to meet these evolving needs is a requisite step in the ongoing efforts to reduce maternal morbidity and mortality.

Early Serial Echocardiographic and Ultrasonographic Findings in Critically Ill Patients With COVID-19

Background Cardiac function of critically ill patients with COVID-19 generally has been reported from clinically obtained data. Echocardiographic deformation imaging can identify ventricular dysfunction missed by traditional echocardiographic assessment. Research Question What is the prevalence of ventricular dysfunction and what are its implications for the natural history of critical COVID-19? Study Design and Methods This is a multicenter prospective cohort of critically ill patients with COVID-19. We performed serial echocardiography and lower extremity vascular ultrasound on hospitalization days 1, 3, and 8. We defined left ventricular (LV) dysfunction as the absolute value of longitudinal strain of < 17% or LV ejection fraction (LVEF) of < 50%. Primary clinical outcome was inpatient survival. Results We enrolled 110 patients. Thirty-nine (35.5%) died before hospital discharge. LV dysfunction was present at admission in 38 patients (34.5%) and in 21 patients (36.2%) on day 8 (P = .59). Median baseline LVEF was 62% (interquartile range [IQR], 52%-69%), whereas median absolute value of baseline LV strain was 16% (IQR, 14%-19%). Survivors and nonsurvivors did not differ statistically significantly with respect to day 1 LV strain (17.9% vs 14.4%;P = .12) or day 1 LVEF (60.5% vs 65%;P = .06). Nonsurvivors showed worse day 1 right ventricle (RV) strain than survivors (16.3% vs 21.2%;P = .04). Interpretation Among patients with critical COVID-19, LV and RV dysfunction is common, frequently identified only through deformation imaging, and early (day 1) RV dysfunction may be associated with clinical outcome.

Multi-organ ultrasound for SARS-COV-2 disease

Aim: There is growing evidence regarding the imaging ultrasound findings of coronavirus disease 2019 COVID-19. Multi-organ ultrasound has played a significant role in the diagnosis and follow-up of these patients. The aim of this study was to describe the ultrasound findings at pulmonary, cardiac and deep venous system of the lower extremities in patients with SARS-COV-2 infection. Material and method: Prospective, cross-sectional, observational study was conducted in patients with confirmed COVID-19 who underwent a multi-organ point-of-care ultrasound (POCUS) examination during hospitalization. Results: A total of 107 patients were enrolled. Lung involvement was present in 100% of the patients, 93.4% bilaterally involvement. The most affected lung area was the posteroinferior (94.39%) followed by the lateral (89.72%). Subpleural consolidations were present in 71% of patients and consolidations larger than 1 cm in 25%. More echographic lung involvement is relational with the degree of respiratory insufficiency. Only two patients had proximal deep vein thrombosis in the lower extremities, 27 angiography tomography scan were performed and pulmonary thromboembolism was confirmed in 14 patients. The most frequent echocardiographic findings were impaired left ventricular relaxation and left ventricular hypertrophy. All patients with thromboembolic disease had severe or critical echocardiographic pulmonary involvement. Conclusions: Multi-organ POCUS ultrasound may be useful for the manifestations of COVID-19. The degree of lung ultrasound involvement was related to the degree of respiratory failure and to the presence of VTED. The relationship between DVT and PTE was lower than expected. Cardiac involvement has little relevance in our series.

Influenza a Myocarditis Vs Multisystem Inflammatory Syndrome Causing Cardiogenic Shock in a 34-Year-Old

Background Cardiogenic shock is a rare complication of influenza myocarditis and multisystem inflammatory syndrome. We present the case of a 32-year-old female in cardiogenic shock who met criteria for both entities. Case A 34-year-old female with hypothyroidism presented after being found down and covered in feces. She had cough and weakness the preceding days. She was febrile and hypotensive. Point of care ultrasound showed severe biventricular dysfunction and she was started on norepinephrine. She was influenza A positive with a lactate of 5.1. Right heart catheterization on 2ug/kg/min of norepinephrine showed a cardiac index (CI) of 2.82 L/min/m2 and a systemic vascular resistance (SVR) of 300 dynes/sec/cm-5. She was started on vasopressin, stress dose steroids, and oseltamivir. She received 6 amps of bicarbonate with aggressive electrolyte repletion. CI as per the Fick equation was within normal limits but lactate continued to rise. Thermodilution showed a CI of 1.6 L/min/m2 and an SVR of 2200 dynes/sec/cm-5, indicating mixed cardiogenic and distributive shock. The patient developed severe abdominal pain and was found to have elevated COVID-19 spike domain and nucleocapsid antibodies, meeting criteria for multisystem inflammatory syndrome (MIS-A). Decision-making The patient was started on dobutamine after thermodilution showed decreased CI. Intravenous immunoglobulin was started after meeting criteria for MIS-A. Her pressor requirements were weaned and then her dobutamine requirements. Follow up cardiac MRI showed mild global hypokinesis of the left ventricle and subtle hypokinesis of the right ventricular inferior wall. Left ventricular ejection fraction was 51%. The patient's cardiac MRI findings were not specific. However, her rapid improvement was suggestive of MIS-A. Additionally, consistent discordance between Fick and thermodilution resulted in confusion regarding optimization of pressors and inotropes. Conclusion The patient responded to dobutamine and MIS-A treatment after an initial impression of myocarditis. Infectious processes should be considered in any patient with new onset heart failure.Copyright © 2023 American College of Cardiology Foundation

Radiofrequency ablation of incessant atrial tachycardia after COVID-19 infection

Objectives: We present a case of a 38-year-old male with no known comorbidities who presented with incessant focal atrial tachycardia complicated by tachycardia-mediated cardiomyopathy and COVID-19 infection. He successfully underwent 3D Cardiac Mapping + radiofrequency ablation of the right superior pulmonary vein. Material(s) and Method(s): Results: A 38-year-old male presented with persistent palpitations and tachycardia associated with heart failure symptoms. On work up, 12 L-ECG showed sustained focal atrial tachycardia with heart rate (HR) ranges 170-190 bpm with positive p-wave axis in lead I, II, III, AVF and upright in lead V1. He was initially started on HR-lowering medications and given electrical synchronized cardioversion which were both unsuccessful. A week later, patient developed COVID-19 pneumonia and subsequently completed isolation as per local government protocol. During the course of admission, a POCUS echocardiogram was done which showed a newly depressed left ventricular ejection fraction (EF) of 22% compared to a previous 44% two weeks earlier. Hence, patient eventually underwent successful 3D-mapping and radiofrequency ablation of the right super pulmonary vein via transseptal approach. He was then successfully discharged with Metoprolol 200 mg twice daily alongside with other heart failure medications. Conclusion(s): Development of COVID-19 infection can run the risk of worsening and clinical decompensation among patients with incessant tachyarrhythmia and there are still no established data regarding the safety of doing radiofrequency ablation post-COVID-19 infection. This case report illustrates doing a successful radiofrequency frequency ablation post-COVID-19 infection in a patient who developed incessant atrial tachycardia.

Developing, Implementing, and Evaluating a Quality Assurance/Quality Improvement Program to Peer Review Point-of-Care Ultrasound Images for Flight Clinicians

Introduction: The use of point of care ultrasound (POCUS) in the prehospital setting is well established (Air Medical Journal, 2018) and is an essential tool in critical care (Amaral et al., 2020). There are no universal guidelines that dictate the use of prehospital ultrasound, indications for use, education and credentialing requirements, quality assurance, or improvement (Amaral et al., 2020). Lack of timely US feedback can impact patient care by incorrect interpretation of images based on practice errors. Method(s): The proposed solution was to implement a robust QA/QI program consisting of a selected nurse or paramedic, that aligned with a regional manager, for a total of 6 individuals that received advanced training and education to perform peer reviews on POCUS images in a consistent and timely manner. Life Link III's education department designed online modules to peer review US images. This QI project utilized the conceptual framework of the Dreyfus Skill Acquisition Model modified by Patricia Benner and the Plan-Do-Study-Act cycle for implementation. The QI project was implemented at a nonprofit air medical service located in Minnesota. A pretest-posttest design and post-project survey were utilized. Challenges encountered during this project included the Covid19 pandemic creating delay in education/training program development and the inability to meet in person due to concerns of transmission with in-person exposure. Result(s): The results were analyzed using a paired t-test to assess for statistical improvement in identifying better quality image acquisition, an increase in accurate image interpretation, and a decrease in image review from submission. The results of the Wilcoxon test were significant based on an alpha value of 0.05 and a p-value of 0.38. This indicated that the differences between the pre-self-assessment survey and post-self-assessment survey were not likely due to random variation. The median of the pre-self-assessment survey was 6.8 with a standard deviation of 1.643 and was significantly lower than the median of a post-self-assessment survey of 10.40 with a standard deviation of 1.342, indicating there was significant learning of ultrasound reviewer responsibilities and expectations, the peer review process, peer reviewer leadership, communication, and feedback skills, and how to use the QA/QI peer review worksheet. Conclusion(s): With the establishment of the core group of peers trained to review POCUS images, there has been better quality image acquisition, an increase in accurate image interpretation, and less time from image submission to image review.Copyright © 2022

Utility of Point-of-Care Lung Ultrasound for Clinical Classification of COVID-19.

In this study, the utility of point-of-care lung ultrasound for clinical classification of coronavirus disease (COVID-19) was prospectively assessed. Twenty-seven adult patients with COVID-19 underwent bedside lung ultrasonography (LUS) examinations three times each within the first 2 wk of admission to the isolation ward. We divided the 81 exams into three groups (moderate, severe and critically ill). Lung scores were calculated as the sum of points. A rank sum test and bivariate correlation analysis were carried out to determine the correlation between LUS on admission and clinical classification of COVID-19. There were dramatic differences in LUS (p < 0.001) among the three groups, and LUS scores (r = 0.754) correlated positively with clinical severity (p < 0.01). In addition, moderate, severe and critically ill patients were more likely to have low (≤9), medium (9-15) and high scores (≥15), respectively. This study provides stratification criteria of LUS scores to assist in quantitatively evaluating COVID-19 patients.

Role of Point of Care Ultrasonography in Patients with COVID-19 Associated Acute Kidney Injury.

The severe acute respiratory virus covariate-2 (SARS CoV-2) that causes Corona Virus Disease 2019 (COVID-19) has affected more than 194 million people worldwide and has attributed to or caused more than 4 million deaths. Acute kidney injury (AKI) is a common complication of COVID-19. Point of care ultrasonography (POCUS) can be a useful tool for the nephrologist. POCUS can be used to elucidate the cause of kidney disease and then also help to manage volume status. Here, we review pearls and pitfalls of using POCUS to manage COVID-19 associated AKI with special attention to kidney, lung, and cardiac ultrasound.

Delayed Diagnosis of Shoulder Septic Arthritis and Osteomyelitis During the COVID-19 Pandemic: The Role of Point-of-Care Ultrasound.

The diagnosis and treatment of septic arthritis are complex and require collaboration among multiple medical services, especially in the emergency department (ED). This case report highlights the difficulties in diagnosing shoulder septic arthritis, which is a rare condition in adults and can present with subtle symptoms. The patient was eventually diagnosed with septic arthritis of the left shoulder. However, the diagnosis was delayed due to the impact of the COVID-19 pandemic on obtaining an outpatient MRI and a previous shoulder injury that added confusion. Delays in diagnosis and treatment can lead to a rapid destruction of the affected joint, causing significant morbidity and mortality. This case report also highlights the importance of alternative diagnostic tools, such as point-of-care ultrasound (POCUS), which is quick, inexpensive, and may lead to earlier detection of joint effusions and prompt arthrocentesis.

Focused echocardiography in COVID-19: An unusual case of acute right ventricular dysfunction.

Background: During the novel coronavirus disease 2019 (COVID-19) pandemic, rapid diagnostics have been frequently sought to quickly evaluate a patient's condition. Lung ultrasound can provide an early glimpse into the disease process and its severity. The addition of focused echocardiography can be particularly helpful in the haemodynamically compromised patient to detect myocardial involvement and alternative diagnoses. Case: We discuss here a 53-year-old patient who presented to the Emergency Department with hypoxia and hypotension. Bedside focused ultrasound revealed signs of COVID-19 pneumonia with evidence of right ventricular strain, initially thought to be due to massive pulmonary embolism. A computed tomography scan confirmed the findings on ultrasonography, but surprisingly did not demonstrate a pulmonary embolism. Conclusion: Point-of-care ultrasound in COVID-19 aided the diagnosis of affected organs and helped categorise the type of shock in this patient; however, right ventricular dysfunction should be interpreted with caution and may not be due to a pulmonary embolism, as in this case.