Bedside Abdominal Ultrasound in Evaluating Nasogastric Tube Placement
| Autor: | Marco Cei, Fulvio Pomero, Lucia Giuntini, Antonino Mazzone, Josè Vitale, Matteo Giorgi-Pierfranceschi, Nicola Mumoli, Daniela Mastroiacovo, Cesare Porta, Riccardo Capra, Alberto Pagnamenta, Francesco Dentali |
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| Rok vydání: | 2021 |
| Předmět: |
Pulmonary and Respiratory Medicine
medicine.medical_specialty medicine.diagnostic_test business.industry Abdominal ultrasound Radiography Ultrasound Nasogastric tube placement Auscultation Critical Care and Intensive Care Medicine 03 medical and health sciences 0302 clinical medicine 030228 respiratory system parasitic diseases Cohort Medicine 030212 general & internal medicine Radiology medicine.symptom Cardiology and Cardiovascular Medicine business Prospective cohort study Altered level of consciousness |
| Zdroj: | Chest. 159:2366-2372 |
| ISSN: | 0012-3692 |
| Popis: | Background Chest radiography is universally accepted as the method of choice to confirm correct positioning of a nasogastric tube (NGT). Considering also that radiation exposure could increase with multiple insertions in a single patient, bedside abdominal ultrasound (BAU) may be a potentially useful alternative to chest radiography in the management of NGTs. Research Question What is the accuracy of BAU in confirming the correct positioning of an NGT? Study Design and Methods After a specific course consisting of 10 h of training, the authors studied, in a prospective multicenter cohort, the validity of BAU to confirm correct NGT placement. All patients were also evaluated by auscultation (whoosh test) and by chest radiography. Every involved operator was blind to each other. Interobserver agreement and accuracy analyses were calculated. Results This study evaluated 606 consecutive inpatients with an indication for NGT insertion. Eighty patients were excluded for protocol violation or incomplete examinations and 526 were analyzed. BAU was positive, negative, and inconclusive in 415 (78.9%), 71 (13.5%), and 40 (7.6%), respectively. The agreement between BAU and chest radiography was excellent. Excluding inconclusive results, BAU had a sensitivity of 99.8% (99.3%-100%), a specificity of 91.0% (88.5%-93.6%), a positive predictive value of 98.3% (97.2%-99.5%), and a negative predictive value of 98.6% (97.6%-99.7%). The accuracy of BAU slightly changed according to the different assignments of the uncertain cases and was improved by the exclusion of patients with an altered level of consciousness. Interpretation These results suggest that BAU has a good positive predictive value and may confirm the correct placement of NGTs when compared with chest radiography. However, considering its suboptimal specificity, caution is necessary before implementing this technique in clinical practice. |
| Databáze: | OpenAIRE |
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