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<document xmlns="http://cnx.rice.edu/cnxml" xmlns:bib="http://bibtexml.sf.net/" xmlns:md="http://cnx.rice.edu/mdml/0.4" id="Case_149">
  <name>Images of Memorable Cases: Case 149</name>
  <content>
    <exercise id="id2263802">
      <problem>
        <para id="id2267063">
          <media src="Case_149-pres1-1.jpg" type="image/jpeg"/>
        </para>
        <para id="id2267101">
          <media src="Case_149-pres1-2.jpg" type="image/jpeg"/>
        </para>
        <para id="id2267135">This previously healthy 49-year-old woman underwent a cholecystectomy and repair of a perforated duodenum. On post-operative day seven, her complaints of cough and shortness of breath prompted the radiographs shown above. Despite diuretic therapy, her condition deteriorated, and she died three days later, severely hypoxic and undiagnosed.</para>
        <para id="id2267146"/>
      </problem>
      <solution>
        <name>149. Vascular erosion by a central venous catheter</name>
        <para id="id2267174">On close inspection of the lateral radiograph (image below), a central venous catheter (arrows) is visible behind the sternum, with the tip far from its intended position near the right atrium. With the catheter tip clearly extravascular, the infusate presumably dripped directly into the chest cavity rather than into the right atrium. Autopsy disclosed large amounts of serous fluid in each pleural space, but the heart, lungs, pulmonary arteries, and other body organs were unremarkable. </para>
        <para id="id2267188">
          <media src="Case_149-diag1-1.jpg" type="image/jpeg"/>
        </para>
        <para id="id2267222">This case teaches several important lessons: </para>
        <para id="id2267234">1) when a patient with an indwelling central venous catheter develops new or progressive cardiorespiratory distress, vascular erosion or perforation deserves immediate consideration;</para>
        <para id="id2267242">2) a lateral radiograph of the chest can be the best way to verify a malpositioned central venous catheter;</para>
        <para id="id2267249">3) failure to recognize this complication can prove fatal.</para>
        <para id="id2267256"/>
      </solution>
    </exercise>
  </content>
</document>
