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Anesthesiology:
Case Reports

Emergent Lung Separation for Management of Pulmonary Artery Rupture

Klafta, Jerome M. MD; Olson, Jeffrey P. MD

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Pulmonary artery (PA) rupture is an unusual but often lethal complication associated with pulmonary artery catheterization. [1,2] Management of PA rupture may include lung isolation in patients requiring intubation to protect the contralateral lung and to decrease bleeding in the affected lung. Inasmuch as some airway bleeding is inevitably present, the mechanics of achieving lung isolation can be difficult using fiberoptic bronchoscopy. This case report describes an innovative, available technique that can facilitate lung isolation. We intubated the left mainstem bronchus in a patient with a ruptured right PA and copious airway blood using a technique combining bronchoscopy and fluoroscopy.
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Case Report

A 66‐yr‐old man with a history of non‐insulin‐dependent diabetes, hypertension, and atrial fibrillation status post‐ablation was undergoing a diagnostic right and left heart catheterization for complaints of shortness of breath and peripheral edema. Shortly after inflation of the balloon of the pulmonary artery, catheter, which was positioned in the right lung, the patient experienced hemoptysis and hypotension. The presumptive diagnosis of a right pulmonary artery rupture was made.
Figure 1
Figure 1
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We were called emergently to the cardiac catheterization laboratory, where, on our arrival, the patient was conscious and spitting up blood. He became increasingly hypotensive and progressively less cooperative as preparations were made to secure his airway. As his consciousness waned, succinylcholine, 100 mg, was given intravenously. Although large amounts of blood were noted in his posterior pharynx, his trachea was intubated with a styletted 7.5 endotracheal tube (ETT) without difficulty. The patient's hemodynamic status deteriorated into pulseless electrical activity within minutes, and resuscitative efforts including chest compressions, intravenous epinephrine, and volume replacement were initiated. As the patient regained a blood pressure (a femoral arterial sheath was being transduced), we attempted without success to selectively intubate the left mainstem bronchus by manipulating the ETT under fluoroscopic guidance. A bronchoscope was then used, but blood in the airway prevented adequate visualization. In a third attempt, fluoroscopy was used once again, but this time to guide the radiopaque bronchoscope (Figure 1) into the left mainstem bronchus. The bronchoscope was easily placed and served as a stylet for the ETT, which was then positioned just proximal to the left upper lobe orifice.
The patient was transported emergently to the operating room for an exploratory right thoracotomy where a tear in the right upper lobar pulmonary artery was repaired. The nondependent lung remained collapsed with adequate one‐lung oxygenation and ventilation during the procedure; the estimated blood loss was 2,500 cc. After the bleeding site was repaired, the ETT was withdrawn into the trachea, and two‐lung ventilation was reinstituted. The patient was extubated on postoperative day 2. He did not suffer a myocardial infarction as determined by cardiac enzymes and electrocardiograph, and he recovered without obvious necrologic sequelae.
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Discussion

Our case illustrates a technique for emergent lung isolation in the presence of significant airway bleeding. PA rupture was responsible for the bleeding in this case, but there are numerous other causes of massive hemoptysis including infections, neoplasms, cardiovascular disorders, and trauma. [3]
Although pulmonary artery catheterization carries risks associated with central venous access, passage of the catheter, and catheter residence, perhaps the most dreaded complication is PA rupture. [2] The incidence of this complication has been estimated to be as high as 0.1–1.5%, [2] with risk factors including hypothermia, anticoagulation, and pulmonary hypertension. [1] Reported mortality rate from PA rupture ranges from 53–70%. [4–5] Management schemes for this clinical problem include the application of ipsilateral positive end‐expiratory pressure, [6] endobronchial tamponade," [4] double‐lumen ETT placement, [7] internal balloon tamponade of the affected pulmonary artery with the balloon of the PA catheter, [8] and surgical options such as unilateral PA occlusion, lobectomy, or pneumonectomy. [4]
Critical to the management of massive hemoptysis is identification of the side bleeding. In our case, the fact that the PA catheterization was being performed under fluoroscopic guidance allowed immediate identification of the affected side. The urgent need for airway control in this case did not leave time to obtain and place a double‐lumen ETT. Once the airway was secured and cardiopulmonary resuscitation could be discontinued, isolation of the right lung (left mainstem intubation) was attempted. Blind advancement of an ETT will rarely result in a left mainstem intubation, but rotating an in situ endotracheal tube 180 [degree sign] while turning the patient's head to the right has been shown to improve the success rate to about 92%. [9] Even with fluoroscopic guidance, this maneuver failed, perhaps because of the somewhat suboptimal positioning of the patient. Placement of a bronchial blocker under bronchoscopy and fluoroscopy has been described in cases in which significant airway bleeding was not a problem. [10]
We took advantage of the radiopaque nature of the fiberoptic bronchoscope to fluoroscopically guide it into the left mainstem bronchus. Once placement was accomplished, left mainstem intubation required only that the ETT be slid off the bronchoscope and its tip be positioned proximal to the left upper lobe orifice. With this approach, impediments to visualization through the bronchoscope (blood, secretions, edema) can be overcome, precluding a need for reliance on blind techniques.
In conclusion, we describe fluoroscopically guided bronchoscopy in achieving lung isolation in the presence of significant airway hemorrhage. Because significant blood or secretions in the airway can decrease the effectiveness of fiberoptic bronchoscopic visualization, and because C‐arm fluoroscopy is readily available in most operating rooms and cardiac catheterization laboratories, our technique may be considered when more conventional ones fail.
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References

1. Barash PG, Nardi D, Hammond G, Walker-Smith G, Capuano D, Laks H, Kopriva CJ, Baue AE, Geha AS: Catheter-induced pulmonary artery perforation: Mechanisms, management, and modifications. J Thorac Cardiovasc Surg 1981; 82:5-12.

2. Practice guidelines for pulmonary artery catheterization: A report by the American Society of Anesthesiologists Task Force on Pulmonary Artery Catheterization. Anesthesiology 1993; 78:380-94.

3. Benumof JL: Anesthesia for Thoracic Surgery, 2nd edition, Philadelphia, WB Saunders, 1995, pp 613.

4. Kelly TF Jr, Morris GC Jr, Crawford ES, Espada R, Howell JF: Perforation of the pulmonary artery with Swan-Ganz catheters: Diagnosis and surgical management. Ann Surg 1981; 193:686-92.

5. Kearney TJ, Shabot MM: Pulmonary artery rupture associated with the Swan-Ganz catheter. Chest 1995; 108:1349-52.

6. Scuderi PE, Prough DS, Price JD, Comer PB: Cessation of pulmonary artery catheter-induced endobronchial hemorrhage associated with the use of PEEP. Anesth Analg 1983; 62:236-8.

7. Stein JM, Lisbon A: Pulmonary hemorrhage from pulmonary artery catheterization treated with endobronchial intubation. Anesthesiology 1981; 55:698-9.

8. Thomas R, Siproudhis L, Laurent JF, Bouget J, Bousser J, Camus C, Michelet C: Massive hemoptysis from iatrogenic balloon catheter rupture of pulmonary artery: Successful early management by balloon tamponade. Crit Care Med 1987; 15:272-3.

9. Kubota H, Kubota Y, Toyoda Y, Ishida H, Asada A, Matsuura H: Selective blind endobronchial intubation in children and adults. Anesthesiology 1987; 67:589-9.

10. Mangar D, Connell GR, Lessin JL, Rasanen J: Catheter-induced pulmonary artery haemorrhage resulting from a pneumothorax. Can J Anaesth 1993; 40:1069-72.

Cited By:

This article has been cited 1 time(s).

Respiratory Care
Complications Leading to Sudden Cardiac Death in Pulmonary Arterial Hypertension
Demerouti, EA; Manginas, AN; Athanassopoulos, GD; Karatasakis, GT
Respiratory Care, 58(7): 1246-1254.
10.4187/respcare.02252
CrossRef
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Keywords:
Bronchoscopy; Hemoptysis; Pulmonary artery rupture.

© 1997 American Society of Anesthesiologists, Inc.

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