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CC BY-NC-ND 4.0 · Journal of Clinical Interventional Radiology ISVIR 2021; 5(02): 086-090
DOI: 10.1055/s-0041-1723096
Original Article

Limited Clinical Utility of Chest Radiography in Asymptomatic Patients after Interventional Radiology-Performed Ultrasound-Guided Thoracentesis: Analysis of 3,022 Consecutive Patients

Jacob J. Bundy
1   Division of Vascular and Interventional Radiology, Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan, United States
,
Anthony N. Hage
2   Department of Radiology, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania, United States
,
Ruple Jairath
3   Department of Neuroscience, University of Evansville, Evansville, Indiana, United States
,
Albert Jiao
4   Michigan State University College of Human Medicine, Grand Rapids, Michigan, United States
,
Vibhor Wadhwa
5   Division of Interventional Radiology, NewYork-Presbyterian/Weill Cornell Medical Center, New York, NY 10065, United States
,
Narendra B. Gutta
6   Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States
,
Ravi N. Srinivasa
7   Department of Interventional Radiology, University of California Los Angeles, Los Angeles, California, United States
,
Joseph J. Gemmete
1   Division of Vascular and Interventional Radiology, Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan, United States
,
Eric J. Monroe
8   Section of Interventional Radiology, Department of Radiology, University of Washington, Seattle Children’s Hospital, Seattle, Washington, United States
,
Jeffrey Forris Beecham Chick
9   Division of Interventional Radiology, Department of Radiology, University of Washington, 1959 Northeast Pacific Street, Seattle, Washington, United States
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Abstract

Purpose The aim of this study was to report the utility of chest radiography following interventional radiology-performed ultrasound-guided thoracentesis.

Materials and Methods A total of 3,998 patients underwent thoracentesis between 2003 and 2018 at two institutions. A total of 3,022 (75.6%) patients were older than 18 years old, underwent interventional radiology-performed ultrasound-guided thoracentesis, and had same-day post-procedure chest radiograph evaluation. Patient age (years), laterality of thoracentesis, procedural technical success, volume of fluid removed (mL), method of post-procedure chest imaging, absence or presence of pneumothorax, pneumothorax size (mm), pneumothorax management measures, and clinical outcomes were recorded. Technical success was defined as successful aspiration of pleural fluid. Post-procedure clinical outcomes included new patient-perceived dyspnea and hypoxia (oxygen saturations < 90% on room air). Costs associated with radiographs were estimated using Medicare and Medicaid fee schedules.

Results Mean age was 56.7 ± 15.5 years. Interventional radiology-performed ultrasound-guided thoracentesis was performed on the left (n = 1,531; 50.7%), right (n = 1,477; 48.9%), and bilaterally (n = 14; 0.5%) using 5-French catheters. Technical success was 100% (n = 3,022). Mean volume of 940 ± 550 mL of fluid was removed. Post-procedure imaging was performed in the form of posteroanterior (PA) (2.6%; 78/3,022), anteroposterior (AP) (17.0%; 513/3,022), PA and lateral (77.9%; 2,355/3,022), or PA, lateral, and left lateral decubitus (2.5%; 76/3,022) chest radiographs. Post-procedural pneumothorax was identified in 21 (0.69%) patients. Mean pneumothorax size, measured on chest radiograph as the longest distance from the chest wall to the lung, was 18.8 ± 10.2 mm (range: 5.0–35.0 mm). Of the 21 pneumothoraces, 7 (33.3%) were asymptomatic, resolved spontaneously, and had a mean size of 6.4 ± 2.4 mm. Fourteen pneumothoraces, of mean size 25.0 ± 5.8 mm, required management with a pleural drainage catheter (66.6%). The overall incidence of pneumothorax requiring pleural drainage catheter placement following interventional radiology-performed ultrasound-guided thoracentesis was 0.46% (14/3,022). Of the patients requiring drainage catheter placement, 12/14 (85.7%) and 13/14 (92.9%) had dyspnea and hypoxia, respectively. Potential costs to Medicare and Medicaid, for chest radiographs, in this study, were $27,547 and $10,581, respectively.

Conclusion The incidence of clinically significant pneumothorax requiring catheter drainage following interventional radiology-operated ultrasound-guided thoracentesis is exceedingly low (0.46%), and routine post-procedure chest radiographs in asymptomatic patients provide little value. Reserving post-procedure chest radiographs for patients with post-procedure dyspnea or hypoxia will result in more efficient resource utilization and health care cost savings.

Keywords

ultrasound - thoracentesis - pneumothorax - chest radiograph - chest tube placement - drainage catheter placement - interventional radiology


Publikationsverlauf

Artikel online veröffentlicht:
30. Juni 2021

© 2021. Indian Society of Vascular and Interventional Radiology. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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