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Objectives: The aim of this study was to assess Jordanian physicians' awareness about venous thromboembolism (VTE) risk among COVID-19 patients and its treatment protocol. Method(s): This was a cross-sectional-based survey that was conducted in Jordan in 2020. During the study period, a convenience sample of physicians working in various Jordanian hospitals were invited to participate in this study. Physicians' knowledge was evaluated and physicians gained one point for each correct answer. Then, a knowledge score out of 23 was calculated for each. Key Findings: In this study, 102 physicians were recruited. Results from this study showed that most of the physicians realize that all COVID-19 patients need VTE risk assessment (n = 69, 67.6%). Regarding VTE prophylaxis, the majority of physicians (n = 91, 89.2%) agreed that low molecular weight heparin (LMWH) is the best prophylactic option for mild-moderate COVID-19 patients with high VTE risk. Regarding severe/critically ill COVID-19 patients, 75.5% of physicians (n = 77) recognized that LMWH is the correct prophylactic option in this case, while 80.4% of them (n = 82) knew that mechanical prevention is the preferred prophylactic option for severe/critically ill COVID-19 patients with high bleeding risk. Moreover, 77.5% of physicians (n = 79) knew that LMWH is the treatment of choice for COVID-19 patients diagnosed with VTE. Finally, linear regression analysis showed that consultants had an overall higher knowledge score about VTE prevention and treatment in COVID-19 patients compared with residents (P = 0.009). Conclusion(s): All physicians knew about VTE risk factors for COVID-19 patients. However, consultants showed better awareness of VTE prophylaxis and treatment compared with residents. We recommend educational workshops be conducted to enhance physicians' knowledge and awareness about VTE thromboprophylaxis and management in COVID-19 patients.Copyright © 2022 The Author(s). Published by Oxford University Press on behalf of the Royal Pharmaceutical Society. All rights reserved.
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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.
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Coronavirus disease 2019 (COVID-19) began to spread in December 2019 and was declared a pandemic by WHO on 11 March 2020. Pulmonary embolism (PE) is a known sequel to COVID-19 infection. Many patients showed worsened symptoms of thrombotic events of pulmonary arteries during the second week of the disease for which computed tomography pulmonary angiography (CTPA) is recommended. The most frequent complications in critically ill patients are prothrombotic coagulation abnormalities and thromboembolism. So, this study aimed to assess the prevalence of PE in patients with COVID-19 infection and to evaluate the relation to disease severity on CTPA findings. Methods: This cross-sectional study was performed to evaluate the patients who tested positive for COVID-19 and underwent CTPA. COVID-19 infection in participants was confirmed by a PCR of nasopharyngeal or oropharyngeal swab samples. Frequencies of computed tomography severity scores and CTPA were calculated and compared with clinical and laboratory findings. Results: The study included 92 patients with COVID-19 infection. Positive PE was found in 18.5% of the patients. The mean age of the patients was 59.83±13.58 years with an age range of 30-86 years. Among the total participants, 27.2% underwent ventilation, 19.6% died during treatment, and 80.4% of them got discharged. PE was developed in patients who did not receive prophylactic anticoagulation, which is statistically significant (P≤0.001). There was also a significant relationship between mechanical ventilation and CTPA findings. Conclusions: The authors conclude from their study that PE is one of the complications of COVID-19 infection. Rising D-dimer during the second week of disease alerts clinicians to do CTPA to exclude or confirm PE. This will help in the early diagnosis and treatment of PE.
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BACKGROUND: Pulmonary embolism (PE) is an important complication of Coronavirus disease 2019 (COVID-19). COVID-19 is associated with respiratory impairment and a pro-coagulative state, rendering PE more likely and difficult to recognize. Several decision algorithms relying on clinical features and D-dimer have been established. High prevalence of PE and elevated Ddimer in patients with COVID-19 might impair the performance of common decision algorithms. Here, we aimed to validate and compare five common decision algorithms implementing age adjusted Ddimer, the GENEVA, and Wells scores as well as the PEGeD- and YEARS-algorithms in patients hospitalized with COVID-19. METHODS: In this single center study, we included patients who were admitted to our tertiary care hospital in the COVID-19 Registry of the LMU Munich. We retrospectively selected patients who received a computed tomography pulmonary angiogram (CTPA) or pulmonary ventilation/perfusion scintigraphy (V/Q) for suspected PE. The performances of five commonly used diagnostic algorithms (age-adjusted D-dimer, GENEVA score, PEGeD-algorithm, Wells score, and YEARS-algorithm) were compared. RESULTS: We identified 413 patients with suspected PE who received a CTPA or V/Q confirming 62 PEs (15%). Among them, 358 patients with 48 PEs (13%) could be evaluated for performance of all algorithms. Patients with PE were older and their overall outcome was worse compared to patients without PE. Of the above five diagnostic algorithms, the PEGeD- and YEARS-algorithms performed best, reducing diagnostic imaging by 14% and 15% respectively with a sensitivity of 95.7% and 95.6%. The GENEVA score was able to reduce CTPA or V/Q by 32.2% but suffered from a low sensitivity (78.6%). Age-adjusted D-dimer and Wells score could not significantly reduce diagnostic imaging. CONCLUSION: The PEGeD- and YEARS-algorithms outperformed other tested decision algorithms and worked well in patients admitted with COVID-19. These findings need independent validation in a prospective study.
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Almost eight million people were affected by the novel coronavirus (COVID-19) disease outbreak until now. The understanding of the disease has not fully emerged, but recent studies showed that thromboembolic events are frequently seen in this unique patient group as a contributor to mortality. A 65-year-old female was admitted to the emergency department (ED) with shortness of breath and fever for three days. Physical examination was notable with tachypnea and right lower extremity edema. The bedside ultrasound evaluation showed right-sided non-compressible common femoral vein with thrombus, and her laboratory was remarkable with a high D-dimer value (39.4 mug/dl). Finally, the patient was sent to the radiology unit for pulmonary computed tomography angiography, revealing filling defects at the pulmonary arteries and parenchymal findings that are consistent with COVID-19 pneumonia and pulmonary embolism (PE). Here, we presented a case of venous thromboembolism without any risk factor but COVID-19 pneumonia. To the best of our knowledge, this is one of the first cases reported in the literature diagnosed as COVID-19 pneumonia simultaneously with PE and deep vein thrombosis in the ED. Eventually, physicians should be vigilant about the occult pathologies associated with the novel coronavirus infection.Copyright © 2023, Kuwait Medical Association. All rights reserved.
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Objectives: To determine if elevated D-dimers in Severe Acute Respiratory Syndrome Coronavirus-2 (COVID-19) positive patients were predictive of concurrent pulmonary embolism (PE), and what, if any, adjusted D-dimer cutoff would be predictive of PE in COVID-19 patients. Background(s): COVID-19 has led to over 500,000 death the United States. COVID-19 has been linked to a prothrombotic state, increasing the affected individual's propensity to form blood clots which is reflected in elevated D-dimers levels. While elevated D-dimers have been associated with 28-day mortality (making them useful in tracking the disease), it is difficult, in the acute setting, to determine if an elevated D-dimer is due to COVID-19, a pulmonary embolism (PE), or both conditions simultaneously. Method(s): This was a retrospective chart review of emergency department patients who underwent a computed tomography pulmonary angiogram (CTPA) who had documented COVID-19 infections between March and December of 2020. Charts were ed for COVID-19 polymerase chain reaction (PCR) results, D-dimers levels, and CTPA results. Kruskal-Wallis rank sum one-way analysis of variance and sensitivity analyses were completed via the software R. Result(s): Of 346 COVID-19 positive patients by nasal swab PCR, 24 (6.9%) had a PE on CTPA. The average D-dimer in the subset was 22,768 ng/dL vs 3,620 ng/dL in COVID-19 positive but PE negative patients (p=.034). As a screening test for concurrent PE, a D-dimer cut off of 1,000ng/dL or, for those over 50, [age in years]*20 ng/dL, had a sensitivity of 96%, specificity of 48% and negative predictive value (NPV) of 99.4%. A cut off of 1,000ng/dL had a sensitivity of 100%, specificity of 44% and NPV of 100%. Conclusion(s): Emergency department patients with COVID-19 and a PE have a significantly higher elevation in their D-dimer when compared to COVID-19 positive patients without a PE. A flat cut off of 1000ng/dL or a two tiered cut off of 1,000ng/dL for those <50 years old and [age in years]*20 ng/dL for those >50 years old proved to be reasonable screening tests for concurrent PE in COVID-19 positive patients.Copyright © 2023
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The emergence of SARS-CoV-2 at the end of 2019 sparked the beginning of the COVID-19 pandemic. Even though it was a novel virus, the workup of suspected COVID-19 included standard protocols used for the investigation of similar respiratory infections and pneumonia. One of the most important diagnostic tests in this regard is computed tomography (CT). CT scans have a high sensitivity in diagnosing COVID-19, and many of the characteristic imaging findings of COVID-19 are used in its diagnosis. The role of CT in COVID-19 management is expanding as more and more hospital practices adopt regular CT use in both the initial workup and continued care of COVID-19 patients. CT has helped hospitalists diagnose complications such as pulmonary embolism, subcutaneous emphysema, pneumomediastinum, pneumothoraces, and nosocomial pneumonia. Although mainly used as a diagnostic tool, the prognostic role of CT in COVID-19 patients is developing. In this review, we explore the role of CT in the management of hospitalized patients with COVID-19, specifically elucidating its use as a diagnostic and prognostic modality, as well as its ability to guide hospital decision-making regarding complex cases. We will highlight important time points when CT scans are used: the initial encounter, the time at admission, and during hospitalization.
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Pulmonary embolism (PE) is common among hospitalized adults with SARS CoV-2 pneumonia. D-dimer (DD)>1 mug/mL has been found to be a severity risk factor. However, most of the studies are based on retrospective data and the real prevalence is unknown Objectives: To evaluate the prevalence of PE in patients with SARS CoV-2 pneumonia, regardless clinical suspicion. Demographic and laboratory data, comorbidities, and clinical outcomes were compared between patients with and without PE Methods: Single-center prospective study. All consecutive cases of SARS CoV-2 pneumonia with DD>1 mug/mL underwent computed tomography pulmonary angiography Results: 179 patients (64 (55-74 years), 65% male) were included. PE was diagnosed in 71 patients (39.7%), mostly with a peripheral location and low thrombotic load (Qanadli score 10%). We did not find disparity in PE prevalence between men and women, and between obese and not obese patients. There were no differences in the intensive care unit admission rate. Mortality rate was 8.5% in patients with PE vs. 3.7% in those without PE, but the differences were not significant. Patients with PE had more history of cardiovascular disease and required more fractional inspired oxygen. DD, platelet distribution width (PDW), neutrophil-lymphocyte ratio (NLR), DD-lactate dehydrogenase ratio (DD/LDH), and DD-ferritin ratio values were significantly higher among PE patients. ROC analysis showed that PDW and DD/LDH had the greatest area under the curve Conclusion(s): Patients with SARS CoV2 pneumonia and DD>1mug/mL presented a high prevalence of PE, regardless of clinical suspicion. PDW, NLR, DD/LDH and DD/Ferritin may help to identify patients with high risk of PE.
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Aim: This study aimed to compare clinical data and laboratory results in patients examined for suspected pulmonary embolism (PE) in the emergency department based on three groups: patients with coronavirus disease-2019 (COVID-19), patients with PE and patients with both COVID-19 and PE. Material(s) and Method(s): This retrospective study was approved by the local ethics committee of the university. Patients included in the study were divided into three groups: Group 1, consisting of COVID-19-polymerase chain reaction (PCR) (negative) and PE (positive) patients;Group 2, consisting of COVID-19-PCR (positive) and PE (negative) patients, and Group 3, consisting of COVID-19-PCR (positive) and PE (positive) patients. Result(s): The three patient groups included in the study had no difference in terms of age (p = 0.916) or sex. The laboratory results of the groups were compared using the Kruskal-Wallis test, which showed significant differences in the levels of white blood cells (p = 0.005), lymphocytes (p < 0.001), neutrophils (p = 0.016), D-Dimer (p < 0.001) and lactate (p = 0.001). Receiver operating characteristic curve analysis with a cut-off value of >2590 for D-Dimer showed 71.43% specificity and 78% sensitivity in differentiating Group 1 from Group 2, and with a cut-off value of >3640, it had 80% specificity and 81.82% sensitivity in differentiating Group 3 from Group 2. Discussion(s): COVID-19 leads to increased incidence of PE. In addition to clinical data, D-Dimer and lactate levels can be used in the differentiation of these patients.Copyright © 2022, Derman Medical Publishing. All rights reserved.
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Introduction and Objectives: In late 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged as the cause of a cluster of pneumonia cases in China, and the corresponding disease was designated as Coronavirus Disease 2019 (COVID-19), spreading quickly around the world resulting in a pandemic. COVID-19 is associated with a set of coagulation abnormalities that increase the risk of thromboembolic events. Material(s) and Method(s): We report series of five cases of acute pulmonary thromboembolism following endourological procedures, treated in our tertiary care center, which after an apparent clinical improvement, developed acute pulmonary thrombo-embolism between second and third post-op day. Results and Observations: Among five cases, three were post PCNL and two post URSL. All Patients presented with dyspnoea, tachycardia, desaturation and hypotension. Further investigated with E.C.G, D-dimer, 2D-echo and CT-pulmonary angiogram, all suggestive of PTE. Hence patients were managed sucessfully in CCU with cardiologist advice and timely intrevention. Among five, three were managed with IV thrombolytic and anticoagulant therapy and two managed with IV anticoagulation alone , dose monitored with periodic coagulation profile. All patients discharged with oral newer anticoagulants and periodic follow up for 6 months. All patients on follow up and doing well. Conclusion(s): Thromboembolic events are potential complication of COVID-19 and can manifest later. Although very rare after endourological procedures, it requires high index of suspicion so as not to be missed as diagnosis, especially in hemodynamically unstable patients with respiratory distress. Early diagnosis and proper therapeutic actions is crucial for patients.
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Background: Pulmonary embolism (PE) is a common complication in COVID-19 patients. Elevated D-dimer levels are observed even in the absence of PE, reducing its discriminative ability as a screening test. Aim(s): To determine the optimal D-dimer cut-off value to predict PE in COVID-19 patients. We hypothesized the cut-off value to be higher than the cut-off values implemented in the YEARS algorithm (van der Hulle et al. Lancet 2017;390:289-297). Method(s): Confirmed COVID-19 patients with a Computed Tomography Pulmonary Angiography (CTPA) performed <=5 days after admission between 03-2020 and 02-2021, at Medisch Spectrum Twente, Netherlands, were retrospectively analysed. The association between PE and D-dimer levels prior to CTPA, and other potential predictors, was analysed using logistic regression analyses. The optimal cut-off value was identified using ROC curve analyses. Result(s): In 142 patients, PE prevalence was 20.4%. D-dimer level prior to CTPA and white blood cell (WBC) count were associated with PE (OR 1.05;95%-CI:1.03-1.07;p<0.001 and OR 1.10;95%-CI:1.00-1.22;p=0.081, respectively). The final regression model contained solely D-dimer level prior to CTPA (AUC 0.83) due to a marginal difference in diagnostic accuracy with the model including WBC count (AUC 0.84). The optimal cut-off value was 750 ng/ml (sensitivity 100%;specificity 19.5%;NPV 100%;PPV 24.2%). In total, 13.3% of the patients without PE had a 500<=D-dimer<750 ng/ml. Conclusion(s): A D-dimer level <750 ng/ml rules out PE with 100% certainty. Compared to the YEARS 500 ng/ml cutoff value, 13.3% less patients are in need for a CTPA, with similar sensitivity. Future research is required for external validation.
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Introduction: Patients admitted with COVID-19 infection and had suspected pulmonary embolism were investigated with CT pulmonary angiogram(CTPA). Apart from the features of COVID pneumonitis, other incidental findings can be reported on the scan. Aim(s): This study illustrates the rate and spectrum of incidental findings on CTPA performed on patients admitted with COVID-19 in a busy district general hospital. Method(s): Electronic patient record and CTPA report of patients admitted with COVID-19 confirmed from SARS-COV2 PCR test were retrospectively analysed using Allscripts Gateway and Sectra software respectively between March 2020 to March 2021. Descriptive and statistical data analysis were undertaken in Excel and GraphPad Prism software. Result(s): 874 patients with COVID-19 with median age of 69 yrs were studied and 218 patients had CTPA (25%). 219 Incidental findings were noted in 112 (51%) patients who had CTPA. Patients with incidental findings are older (68 yrs vs 59yrs, p value 0.0005). 35 patients(16%) were found to have pulmonary embolism in our cohort. Conclusion : This study illustrates that incidental findings are common when COVID-19 patients had CTPA scans, and these patients were older. These incidental findings were both varied and clinically significant. This would increase the pressure on respiratory and cardiology services to investigate these incidental findings, further management and subsequent follow up.
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Background: During hospitalization for Covid-19 the prevalence of pulmonary embolism (PE) is ~15%. Occult PE may be undiagnosed during hospitalization. Also, after discharge, factors such as residual (local) inflammation and relative physical inactivity may predispose to PE. Aim(s): To study the presence of occult PE and pulmonary perfusion defects three months after discharge from hospitalization for Covid-19. Method(s): In this prospective study we performed CT pulmonary angiography (CTPA) in adults three months after discharge from hospitalization for moderate-to-critical Covid-19. Exclusion criteria: therapeutic anticoagulation, diagnosed PE during hospitalization, CTPA contra-indications. Primary outcome measure was presence of PE. Secondary outcomes were wedge shaped perfusion defects on subtraction iodine maps, D-dimer concentration, presence of Years criteria at follow-up, and pulmonary parenchymal abnormalities. Result(s): 26 patients (65% male, 61 (SD10) y, hospital length of stay 11 (IQR9-15) days, 34% ICU treatment) underwent CTPA at 13 (SD2) weeks after discharge. 25 patients (96%) had no evidence for PE while one post-ICU patient demonstrated a suspected partial occlusion of a subsegmental pulmonary artery. No wedge shaped perfusion defects were found. D-Dimer values were <1000 ng/ml in all patients and none had Years criteria. Extent of parenchymal abnormalities decreased compared to acute phase (CT severity score 7 (SD5) vs 13 (SD5), p=0.004). Conclusion(s): Prevalence of occult PE three months after discharge from hospitalization for Covid-19 was negligible in our sample. CTPA should not be routinely performed in these patients. .
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Introduction: NIRS reduces intubation rate in COVID-19 pneumonia. Outcome is related to age, comorbidities, and baseline illness severity. Thoracic CT has prognostic value in COVID-19 pneumonia. Forced Oscillatory Technique (FOT) allows non-invasive assessment of respiratory reactance (Xrs) that is related to lung compliance. A pilot study showed FOT feasibility in patients with COVID-19 pneumonia receiving NIRS (1). Aim(s): Measuring Xrs in COVID19 patients receiving NIRS and correlate with CT. Method(s): The local ERB approved the study. 32 consecutive patients with moderate-severe COVID-19 ARDS were enrolled. Patients underwent non-invasive ventilation (NIV) alternated to High Flow Nasal Cannula (HFNC). In the first 24 hours of hospitalization triplicate FOT measurements were performed (Resmon ProFULL) according to current guidelines during HFNC. Within 1 week 28 patients underwent computed tomographic pulmonary angiography (CTPA) and collapsed, infiltrated and normally inflated areas were quantified (3D Slicer software). Result(s): 12 patients had altered Xrs-z score. Collapsed areas correlated with Xrs z-score (rho=0.37;p=0.046) and almost with inspiratory Xrs (rho=-0.36;p=0.055). Inflated areas correlated with inspiratory Xrs (rho=0.42;p=0.024) while infiltrated areas didn't. In our cohort CTPA and FOT parameters didn't discriminate outcomes but inflated areas were inversely related to hospitalization (rho=-0.43;p=0.04). Conclusion(s): FOT showed abnormal Xrs in a subset of patients. Xrs z-score is a noninvasive index of collapsed areas in COVID-19 pneumonia and could be useful in patients assessment and follow up.
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Introduction: Hughes-Stovin syndrome (HSS) is a systemic vasculitis characterized by pulmonary artery aneurysms (PAA) and widespread venous and arterial thrombosis. Fatalities in HSS resulted from unforeseeable fatal suffocating hemoptysis. It is critical to early detect pulmonary involvement to take timely measures against inevitable serious life-threatening complications. Case presentation: A 27 year old Filipino male patient presented to the emergency department with an acute attack of massive hemoptysis. The markers of inflammation were elevated with anemia and a normal coagulation profile. The patient had bilateral lower limb edema with tender calf muscles. Color Doppler ultrasound revealed bilateral deep vein thrombosis. Importantly, an urgent computerized tomography pulmonary angiography (CTPA) revealed bilateral large PAAs which matched the pattern of pseudoaneurysms described by the HSS international study group (HSSISG). There was no history of iridocyclitis, recurrent oral or genital ulcers. Accordingly, the patient was diagnosed with HSS. The patient received intravenous pulse methylprednisolone (1 g/3 days), then oral prednisone (1 mg/kg/d/3 months), and monthly pulse cyclophosphamide (1 g) for three months. The patient remained symptom-free, yet on the third pulse of cyclophosphamide;he patient contracted corona virus disease-2019 (COVID-19) infection and died three weeks later from a fatal episode of massive hemoptysis. The case was discussed and the recent literature was reviewed relative to fatal hemoptysis associated with pulmonary artery pseudoaneurysms (PAPs) pattern in HSS Conclusion(s): HSS presenting with massive hemoptysis could be lifethreatening and the PAPs are considered a double edged sword. Detailed description of such rare cases is warranted for optimum future management.Copyright © 2023
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We report a case of a 41-year-old male diagnosed with pulmonary coccidioidomycosis and pulmonary embolism (PE) based on a point-of-care ultrasound (POCUS) finding who was suspected to be malingering for right-sided chest pain considering his psychiatric history. POCUS was performed and showed right ventricular strain with a D-shaped left ventricle and B-lines with subpleural consolidations, and PE was confirmed with computed tomography pulmonary angiography. No other risk factors for PE were found except for coccidioidomycosis. The patient was treated with apixaban and fluconazole and discharged in stable condition. We discuss the usefulness of POCUS in diagnosing PE and the very rare association between coccidioidomycosis and PE.
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While in labor, a 37-year-old woman developed acute dyspnea, hypoxemia, and tachycardia. Transthoracic echocardiography demonstrated severe right ventricular dilation and dysfunction, raising the suspicion of acute pulmonary embolism. The patient indeed had bilateral pulmonary embolism, necessitating percutaneous thrombectomy. Her course was complicated by another saddle pulmonary embolus, heparin-induced thrombocytopenia, and COVID-19 infection. This clinical case illustrates the importance of prompt diagnosis of acute pulmonary embolism in a peripartum female patient, the multidisciplinary approach of management, and how to approach clinical complications such as heparin-induced thrombocytopenia. Furthermore, long-term management in acute pulmonary embolism is presented.
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BACKGROUND AND OBJECTIVE: Clinical prediction models determine the pre-test probability of pulmonary embolism (PE) and assess the need for tests for these patients. Coronavirus infection is associated with a greater risk of PE, increasing its severity and conferring a worse prognosis. The pathogenesis of PE appears to be different in patients with and without SARS-CoV-2 infection. This systematic review aims to discover the utility of probability models developed for PE in patients with COVID-19 by reviewing the available literature. METHODS: A literature search on the PubMed, Scopus, and EMBASE databases was carried out. All studies that reported data on the use of clinical prediction models for PE in patients with COVID-19 were included. Study quality was assessed using the Newcastle-Ottawa scale for non-randomized studies. RESULTS: Thirteen studies that evaluated five prediction models (Wells score, Geneva score, YEARS algorithm, and PERC and PEGeD clinical decision rules) were included. The different scales were used in 1,187 patients with COVID-19. Overall, the models showed limited predictive ability. The two-level Wells score with low (or unlikely) clinical probability in combination with a D-dimer level <3000 ng/mL or a normal bedside lung ultrasound showed an adequate correlation for ruling out PE. CONCLUSIONS: Our systematic review suggests that the clinical prediction models available for PE that were developed in the general population are not applicable to patients with COVID-19. Therefore, their use is in clinical practice as the only diagnostic screening tool is not recommended. New clinical probability models for PE that are validated in these patients are needed.
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Aim/Introduction: COVID-19 and the SARS-CoV-2 pandemic has been ongoing for 2 year and thromboembolic events have been described as a major complication at the time of the infection and as a mid-term event, even in patients on prophylactic anticoagulants.In this study we underline the importance of the pulmonary scintigraphy in the detection of early or mid terme thromboembolic events especially in subsegmental pulmonary arteries who could be missed by CT pulmonary angiography. Material(s) and Method(s): In our department we performed 12 pulmonary perfusion scintigraphy for patients presenting persisting respiratory symptoms (such as dyspnea, thoracic pain ) after covid-19 infection. Most of our patients were women (sex ratio 1,3) and the mean age was 55.4 yAfter intravenous injection of 148-222 MBq (4-6mCi) of 99mTc-macroaggregated albumin, SPECT imaging with low-dose CT was performed with the patient supine. Planar imaging was done in multiple projections (anterior and posterior;right anterior and posterior oblique;and left anterior and posterior oblique). The images were reconstructed in the transaxial, coronal, and sagittal views and were reviewed for perfusion defects. Modified PIOPED criteria were used to interpret the exams : The mismatched perfusion defects in this study were based on a mismatch between CT and scintigraphy images since we do not perform ventilation scans in our department. Result(s): On a median interval of 2 months after infection , Lung perfusion defects (of any type) were observed in 11 out of 12 subjects (92%). Patients with severe COVID-19 were not at higher risk of having mismatched perfusion defects than were patients with moderate COVID-19 and the interval between COVID-19-positive reports and scanning did not reduce the risk for mismatched perfusion defects.Mismatched perfusion defects were the commonest and were observed in 9 subjects (75%), suggestive of pulmonary embolism and leading to the instauration of curative anticoagulants. Conclusion(s): With these results, we aim to show that Lung perfusion scintigraphy can play an important role in the screening of such patients who may be at risk for developing pulmonary embolism as post-SARS-CoV-2 infection sequelae.