23: Chest Tube Removal (Assist)

Published on 06/03/2015 by admin

Filed under Critical Care Medicine

Last modified 06/03/2015

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PROCEDURE 23

imageChest Tube Removal (Assist)

PURPOSE:

Chest tube removal is performed to discontinue a chest tube when it is no longer needed for the removal or drainage of air, blood, or fluid from the intrapleural or mediastinal space.

PREREQUISITE NURSING KNOWLEDGE

• Chest tubes are placed in the pleural or mediastinal space to evacuate an abnormal collection of air or fluid or both.

• Indications for removal are based on the reason for insertion and include the following:

image Drainage has decreased to 50 to 200 mL in prior 24 hours if tube was placed for hemothorax, empyema, or pleural effusion.

image Research has shown that, depending on the reason for the chest tube, volumes of 200 to 450 mL/day do not adversely affect length of stay or overall costs when compared with lower threshold volumes, nor does the risk of pleural fluid reaccumulation increase.5,21

image Drainage has changed from bloody to serosanguineous, no air leak is present, and amount is less than 100 mL in the past 8 hours (if tube was placed after cardiac surgery).1,9

image Lungs are reexpanded (as shown on chest radiographic results).

image Respiratory status has improved (i.e., nonlabored respirations, equal bilateral breath sounds, absence of shortness of breath, decreased use of accessory muscles, symmetrical respiratory excursion, and respiratory rate less than 24 breaths/min).

image Fluctuations are minimal or absent in the water-seal chamber of the collection device, and the level of solution rises in the chamber.

• Air leaks have resolved for at least 24 hours (the absence of continuous bubbling in the water-seal chamber or absence of air bubbles from right to left in the air leak detector) and lung is fully reinflated on chest radiographic results.

• The air leak detector should bubble gently immediately on insertion of the chest tube during expiration and with coughing. Continuous bubbling in the air leak detector indicates a leak in the patient or the chest drainage system. Fluctuations in the water level (also known as tidaling) in the water-seal chamber of 5 to 10 cm, rising during inhalation and falling during expiration, should be observed with spontaneous respirations. If the patient is on mechanical ventilation, the pattern of fluctuation is just the opposite. Any suction applied must be disconnected temporarily to assess correctly for fluctuations in the water-seal chamber.

• Pleural tubes are placed after cardiac surgery if the pleural cavity has been entered. They typically are removed within 24 to 48 hours after surgery.1,9

• Pleural tubes placed for reasons other than postcardiac surgery necessity remain until the patient no longer needs them (i.e., no persistent air leak, stoppage of ongoing fluid leak or bleeding, or lung is reexpanded on chest radiographic results).

• Mediastinal chest tubes most often are removed 24 to 36 hours after cardiac surgery.1

• Flexible silastic (Blake) (Ethicon, Inc, Somervile, NJ) drains may be used in place of large-bore chest tubes in the mediastinal and pleural spaces after cardiac surgery. These tubes provide more efficient drainage and improved patient mobility with minimized tissue trauma and pain with removal.3,7,17

• Chest tubes that remain in place for more than 7 days increase the risk of infection along the chest tube tract.

• Chest radiographs are done periodically to determine whether the lung has reexpanded. Daily chest radiographs are not necessary while the tube is in place.10 Reexpanded lungs, along with respiratory assessments that show improvement in the patient’s respiratory status, are the basis for the decision to remove the chest tube.

• While the tubes are in place, patients may have related discomfort. Prompt removal of chest tubes encourages patients to increase ambulation and respiratory measures to improve lung expansion after surgery (e.g., coughing, deep breathing). However, removal of the chest tube may also be a painful procedure for the patient.4,8,15,16

• The types of sutures used to secure chest tubes vary according to the preference of the physician, the physician assistant, or the advanced practice nurse. One common type is the horizontal mattress or purse-string suture, which is threaded around and through the wound edges in a U-shape with the ends left unknotted until the chest tube is removed. Usually, one or two anchor stitches accompany the purse-string suture (see Fig. 22-1).

• A primary goal of chest tube removal is removal of tubes without introduction of air or contaminants into the pleural space.

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