Medical Image of the Week: Migration of Fractured PICC Line

Figure 1. Chest radiograph showing catheter fragment coiled within the main pulmonary artery with the tips extending to the peripheral pulmonary vasculature (arrow).

A 29 year old man had a peripherally inserted central catheter (PICC, 60 cm, 4 Fr, single lumen Groshong), placed at a rural hospital via right brachial vein approach for long term antibiotic therapy for an infected diabetic foot. Two days later, nursing staff noticed difficulty in flushing the PICC line. A chest X-ray was obtained which showed fracture of a portion of the PICC line with migration to the pulmonary vasculature (Figure 1). The broken catheter was successfully removed in a two-step process using a 6 x10 mm EN Snare® from the left pulmonary artery. The patient, however remained asymptomatic and without any arrhythmias on the telemonitor. Intravascular migration and subsequent malposition of PICC lines are usually due to their pinch off, small size, as well as changes in intrathoracic pressure and body position (1).

Santhosh G. John MD, Paola Devis MD

University of Arizona

Tucson, AZ

Reference

1. Zhang Y, Jiang H, Wei L, Yu H. Persistent hiccup Caused by peripherally inserted central catheter migration. J Anesth. 2011;25(4):625-6. [CrossRef] [PubMed]

Reference as: John SG, Devis P. Medical image of the week: migration of fractured PICC line. Southwest J Pulm Crit Care. 2013;7(5): . doi: http://dx.doi.org/10.13175/swjpcc151-13 PDF

Medical Image of the Week: Empyema

Figure 1. Admission thoracic CT showing a low density collection in the right lung likely from necrosis (*).

Figure 2. Selected views from the thoracic CT obtained 1 week after admission. Panel A: Architectural distortion (white circle) suggests necrotizing pneumonia. Note fluid within the bronchus intermedius (*). Panel B: Defect in visceral pleura (arrow) with decompression of parenchymal necrosis into the pleural space.  Note enhancement and thickening of both pleural layers. Panel C: Defect in parietal pleura (black arrow) with fluid extending into the extrapleural space. Pericardial effusion (*), new left pleural effusion and left parietal pleura enhancement (white arrow) suggests spread of infection. Incidental hiatal hernia (+).

A 71 year-old man with chronic obstructive pulmonary disease (COPD) presents to the emergency department complaining of dyspnea after recent admission for pneumonia. Chest CT shows a low density collection in the right lung suggesting necrosis (Figure 1). A CT obtained 1 week after admission (Figure 2) shows progression to empyema.

Management of empyema can be difficult. If the fluid cannot be removed with a therapeutic thoracentesis, a chest tube should be inserted and consideration be given to the intrapleural instillation of fibrinolytics (1). If the loculated effusion persists, the patient should be subjected to video-assisted thoracoscopic surgery. If the lung cannot be expanded with this procedure, a full thoracotomy with decortication should be performed. The definitive procedure should be performed within fourteen days.

Jason R. Young MD and David L. August, MD

Department of Radiology

Maricopa Integrated Health System

Phoenix, AZ

Reference

1. Light RW. Parapneumonic effusions and empyema. Proc Am Thorac Soc. 2006;3(1):75-80. [CrossRef] [PubMed]

Reference as: Young JR, August DL. Medical image of the week: empyema. Southwest J Pulm Crit Care. 2013;7(5):300-1. http://dx.doi.org/10.13175/swjpcc143-13 PDF