Case of the Month - Case 3/2000
Abstract
Case Study
This is a critically ill 24 year-old female patient, requiring a pulmonary artery (PA) catheter for hemodynamic management. Below are the 3 consecutive chest X rays, the first after a routine insertion of the PA catheter.
X-Ray 1
X-Ray 2
X-Ray 3
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What is your diagnosis?
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What is the incidence of this pathology?
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What are the risk factors?
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What is the known mortality rate?
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What would be your treatment options?
Question 1: What is your diagnosis?
A: The patient has developed a hemothorax due to rupture of the pulmonary artery, caused by the PA catheter.
Other potential complications due to use of a PA catheter include pneumothorax, arrhythmias, pulmonary infarction, sepsis and endocarditis, balloon rupture and subclavian artery injury.
Question 2: What is the incidence of this pathology?
A: Published reports range of pulmonary artery rupture as a complication of the PA catheter range from 0.001% to 0.47%. 1 Postulated mechanisms include distal tip migration penetrating the wall during balloon deflation, 2 overdistention of the balloon with fluid 3 and traction on an inflated, wedged balloon.4.
Question 3: What are the risk factors
A: Proposed risk factors include age over 60 years, pulmonary hypertension, improper balloon inflation, improper catheter positioning, cardiopulmonary bypass and anticoagulation. 1
Question 4: What is the known mortality rate?
A: Thoracotomy appears to improve survival (50%) in patients who develop a hemothorax, whereas conservative treatment in these patients is not successful. 1 Patients who do not develop a hemothorax have a 25% mortality rate.
Question 5: What would be your treatment options?
A: Nonsurgical options include flexible bronchoscopy and Fogarty catheter tamponade, 5 applying high PEEP 6 and conservative treatment, all of which are recommended in patients without a hemothorax. Double lumen intubation to protect the noninvolved lung has also been recommended. 7
Surgical options require a thoracotomy with arterial repair, 5 pneumonectomy 7 or lobectomy. 8


