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Malignant pericardial effusion complicated by cardiac tamponade under atezolizumab.

ABSTRACT: Immune-related adverse events including cardiac toxicity are increasingly described in patients receiving immune checkpoint inhibitors. We described a malignant pericardial effusion complicated by a cardiac tamponade in an advanced non-small cell lung cancer patient who had received five infusions of atezolizumab, a PDL-1 monoclonal antibody, in combination with cabozantinib. The definitive diagnosis was quickly made by cytology examination showing typical cell abnormalities and high fluorescence cell information provided by the hematology analyzer. The administration of atezolizumab and cabozantinib was temporarily discontinued due to cardiogenic hepatic failure following cardiac tamponade. After the re-initiation of the treatment, pericardial effusion relapsed. In this patient, the analysis of the pericardial fluid led to the final diagnosis of pericardial tumor progression. This was afterwards confirmed by the finding of proliferating intrapericardial tissue by computed tomography scan and ultrasound. This report emphasizes the value of cytology analysis performed in a hematology laboratory as an accurate and immediate tool for malignancy detection in pericardial effusions.

SUBMITTER: Benjamin L

PROVIDER: S-EPMC8323422 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Malignant pericardial effusion complicated by cardiac tamponade under atezolizumab.

Benjamin Lardinois L Jean-Charles Goeminne G Laurence Miller M Adrien Randazzo R Terry Laurent L Régis Debois D

SAGE open medical case reports 20210728

Immune-related adverse events including cardiac toxicity are increasingly described in patients receiving immune checkpoint inhibitors. We described a malignant pericardial effusion complicated by a cardiac tamponade in an advanced non-small cell lung cancer patient who had received five infusions of atezolizumab, a PDL-1 monoclonal antibody, in combination with cabozantinib. The definitive diagnosis was quickly made by cytology examination showing typical cell abnormalities and high fluorescenc ...[more]

PMID: 34377486

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Project description:BackgroundTimely and accurate detection of pericardial effusion and assessment cardiac tamponade remain challenging and highly operator dependent.ObjectivesArtificial intelligence has advanced many echocardiographic assessments, and we aimed to develop and validate a deep learning model to automate the assessment of pericardial effusion severity and cardiac tamponade from echocardiogram videos.MethodsWe developed a deep learning model (EchoNet-Pericardium) using temporal-spatial convolutional neural networks to automate pericardial effusion severity grading and tamponade detection from echocardiography videos. The model was trained using a retrospective dataset of 1,427,660 videos from 85,380 echocardiograms at Cedars-Sinai Medical Center (CSMC) to predict PE severity and cardiac tamponade across individual echocardiographic views and an ensemble approach combining predictions from five standard views. External validation was performed on 33,310 videos from 1,806 echocardiograms from Stanford Healthcare (SHC).ResultsIn the held out CSMC test set, EchoNet-Pericardium achieved an AUC of 0.900 (95% CI: 0.884-0.916) for detecting moderate or larger pericardial effusion, 0.942 (95% CI: 0.917-0.964) for large pericardial effusion, and 0.955 (95% CI: 0.939-0.968) for cardiac tamponade. In the SHC external validation cohort, the model achieved AUCs of 0.869 (95% CI: 0.794-0.933) for moderate or larger pericardial effusion, 0.959 (95% CI: 0.945-0.972) for large pericardial effusion, and 0.966 (95% CI: 0.906-0.995) for cardiac tamponade. Subgroup analysis demonstrated consistent performance across ages, sexes, left ventricular ejection fraction, and atrial fibrillation statuses.ConclusionsOur deep learning-based framework accurately grades pericardial effusion severity and detects cardiac tamponade from echocardiograms, demonstrating consistent performance and generalizability across different cohorts. This automated tool has the potential to enhance clinical decision-making by reducing operator dependence and expediting diagnosis.

Project description:Introduction and importancePericarditis is a common illness that can appear in a variety of clinical settings and has numerous causes. In developing nations where tuberculosis is still a serious public health issue, more than 50% of cases of pericarditis are related to tuberculosis.Case presentationThere was no history of TB, alcoholism, IV drug abuse, immunosuppressant, or corticosteroid use. On examination, she had a fever, tachycardia, pulsus paradoxus of 10 mmHg, hypotension, tachypnea, and a distended jugular vein. On auscultation, her heartbeats were muffled, and accompanied by a pericardial rub. Laboratory investigation showed low hematocrit and a high WBC count with lymphocyte predominance. ESR and CRP levels were elevated. Her chest X-ray revealed an enlargement of the cardiac silhouette. The ECG showed low voltage complexes. Echocardiography showed circumferential 30 mm × 25 mm pericardial effusion with fibrin strands in the visceral pericardium. An emergency pericardiocentesis was performed under the guidance of transthoracic echocardiography using sub-xiphoidal standards. Microbiologic analysis of the pericardial fluid confirmed tuberculosis. After successful pericardiocenthesis, the patient's condition improved massively. After three days of pericardiocentasis drainage, TB treatment was started and she was discharged for outpatient flow up.Clinical discussionTuberculous pericarditis is a serious tuberculosis (TB) complication that can be difficult to diagnose and often goes undetected, leading to late complications such as constrictive pericarditis and cardiac tamponade, which lead to increased mortality. This current case illustrates a young female patient presenting with isolated TB pericarditis complicated by cardiac tamponade. She had massive improvement following pericardiocentesis and anti-TB treatment.ConclusionIn Africa, tuberculous pericarditis should be considered as a differential diagnosis in any patient presenting with moderate to massive pericardial effusion. A high index of suspicion is required for the diagnosis of extrapulmonary TB pericarditis, especially in patients without known risk factors.

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Malignant pericardial effusion complicated by cardiac tamponade under atezolizumab.

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Malignant pericardial effusion complicated by cardiac tamponade under atezolizumab.

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