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Tube thoracostomy

created by eliserh

(thing) by eliserh (3.4 wk) (print)   ?   (I like it!) Sat Aug 30 2003 at 7:00:33

A tube thoracostomy is a procedure by which a tube is inserted into the chest cavity in order to evacuate air or fluid.

INDICATIONS
  • Traumatic pneumothorax (PTX)
  • Moderate-to-large PTX
  • Respiratory symptoms, irrespective of the size of the PTX
  • Recurring PTX after removal of initial chest tube
  • Patients requiring ventilator support
  • Patients requiring general anaesthesia
  • Haemothorax (HTX) associated with PTX
  • Bilateral PTX of any size
  • Tension pneumothorax
  • Prophylactically when airlifting patients with chest trauma (to prevent spontaneous PTX due to high altitude)


    CONTRAINDICATIONS
    (relative)
  • Previous thoracotomy
  • Previous pneumonectomy
  • Coagulation disorders
    • .

    DISCUSSION

    A pneumothorax (PTX), particularly a tension PTX, is a potentially life-threatening condition. Air, or sometimes fluid (as in the case of a haemothorax) invades the pleural cavity - the empty space surrounding the heart and lungs - causing positive intrapleural pressure. The positive pressure upsets the normal balance of things in the pleural cavity, and compresses the heart and lungs. This compression can preven the heart and lungs from functioning, and can lead to death in very short order. Therefore, the contraindications must be balanced against the substantial potential risk of not performing the procedure. Tube thoracostomy is generally performed after emergent needle decompression (needle thoracostomy), and is the definitive management of (haemo-)pneumothoraces.

    In order to perform the procedure, sedate the patient, if conscious. Locate the fifth or sixth intercostal space (i.e. space between the 5th and 6th or 6th and 7th ribs) along the linea axillaris media, an imaginary line passing through the middle of the axilla. Prepare the incision site with povidone iodine solution. Make an incision of 3cm length over the 5th or 6th rib along the linea axillaris media.After using a curved haemostat to dissect through the soft tissue all the way down to the rib, push the haemostat over the superior part of the rib - avoiding contact with the intercostal neurovascular bundle that is right underneath the inferior aspect of the next higher rib - and puncture the intercostal muscles and parietal pleura. Hold the puncture open by placing your finger alongside the haemostat while removing the haemostat. Keep your finger in place to facilitate insertion of the chest tube. A clamp may be used to steady the tube at the proximal (closest to the insertion point) end. If the tube has been properly placed, it will fog up as it fills with the air from the pleural cavity. Now that the tube has been inserted into the pleural cavity, it must be hooked up to an external underwater seal and suction device (e.g. Pleur-Evac ®). After connecting to external suction, the tube must be sutured and taped to hold it in place. Then, confirm lung re-expansion radiographically.

    Complications arising from tube thoracostomy are generally related to improper insertion or placement, and include damage to the intercostal neurovascular bundles or the lung parenchyma itself. These risks are increased by the use of a trocar.

    printable version
    chaos

    Trocar Pleura haemothorax Coagulation
    Bundesverfassungsgericht dissect Thoracotomy Parenchyma
    Contraindication airlift Traumatic Pleural
    trauma Puncture Evacuate chest cavity
    tension patient Procedure Proximal
    Disorder Thomas Cromwell heart rib
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