ABSTRACT
BACKGROUND: The clinical manifestation of COVID-19 is nonspecific and varies greatly, which makes it more difficult to discriminate from other (virus) infections. Neither individual findings nor combinations of findings are specific enough to be able to diagnose COVID-19 with a high degree of certainty. The goal was to identify patients in the emergency department, who are at risk for COVID-19 disease, early by using a score, so that they could be isolated pre-emptively. METHOD: Development and implementation of a symptom-based COVID-19 score based on a multicentric retrospective evaluation in three German emergency departments from 9 March until 30 April 2020 of patients suspected of having COVID-19 and subsequent SARS-CoV2 PCR testing. RESULTS: The study population included 697 patients and 9.4% of these patients were diagnosed with COVID-19 infection. A COVID-19 score of ≥5 points was associated with a significantly increased likelihood of illness. The sensitivity of the score was 98.4% with a moderate specificity of 48.3%. DISCUSSION: The score, which is easy to obtain during the initial assessment, supports the assessment of the pretest probability for a COVID-19 infection as part of the risk stratification and can influence the treatment pathway in terms of pre-emptive isolation, PCR testing and other treatment options at an early stage. Due to the nonspecific symptoms of the disease; however, it must be accepted that the goal of high sensitivity results in a relatively low specificity of the score.
Subject(s)
COVID-19 , Virus Diseases , Humans , Retrospective Studies , Risk Assessment , SARS-CoV-2ABSTRACT
UNLABELLED: BACKGROUND/PATIENTS: This report is about two patients (male, 48 and 35 years old) with a primary alveolar proteinosis where the indication for therapeutic lavage was given. The standard is lavage with up to 50 litres fluid. METHODS: We preferred a modified therapy with the so called "ambu-lavage". With this kind of Lavage, first described by Kronenberger et al., one lung is filled with one litre warm (37 degrees C) NaCl-fluid. Then this fluid is mixed up with an ambu-bellows for three minutes and then the fluid is removed of the lung. More cycles with 500 ml fluid follow until the lung is lavaged with five litres. In summary every lung was lavaged two to three times. The protein concentration was checked in every lavage portion. RESULTS: Both patients tolerated these procedures well, in anaesthesia with a double-lumen-tube. There were no complications. The pulmonary function test and blood-gas-analysis could be improved significantly. Dyspnoea disappeared. CONCLUSION: This case-report shows two cases of alveolar-proteinosis which were treated well with the "ambu-lavage" which takes less time than the standard-lavage.
Subject(s)
Pulmonary Alveolar Proteinosis/therapy , Adult , Bronchoalveolar Lavage Fluid , Humans , Male , Middle Aged , Pulmonary Alveolar Proteinosis/diagnostic imaging , Radiography, Thoracic , Therapeutic Irrigation , Treatment OutcomeABSTRACT
PURPOSE: To evaluate safety and precision of liver tumor biopsies performed in an open low field system using different sequence techniques. MATERIALS AND METHODS: In 47 patients with liver tumors, MR-guided biopsies were performed in a low field system (0.2 Tesla, Magnetom Open, Siemens) using two different sequences. The procedure was monitored with T1-weighted FLASH sequences (TR/TE = 100/9; 70(3)) in all patients and with FISP-Rotated-Keyhole-sequence (TR/TE = 18/8; 90(3)) in additional 20 patients. After positioning of the needle tip in the tumors, 166 biopsy specimens were acquired with 16 G cutting needles (Somatex*). The diameter of the biopsied lesions ranged from 1 to 10 cm (mean diameter 3.2 cm). Visibility of the needles and precision of the biopsies were evaluated. RESULTS: All interventional biopsies were performed without vascular or organ injuries. Adequate specimens for histologic interpretation were obtained in 42 cases (89.3%). The biopsy results were non-specific in 2 patients (4.2%) and the lesions missed in 3 patients (6.3%). Mean in-room time was 35 minutes and the intervention time was 8.3 minutes. T1-weighted FLASH images proved optimal for confirming needle-tip placement during the biopsies or punctures. Organs, tumors and vessels were easily identified. The FISP sequence proved to be inferior in visualizing vessels and tumors. CONCLUSION: MR-guided liver biopsies are safely and precisely performed using T1-weighted FLASH-sequences with sufficient visualization of the lesions and might be complementary to US- or CT-guided biopsies.
