Sheath introducer: Difference between revisions

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==Procedure==
==Procedure==
 
''Same procedure as [[central line]] placement according to site (see below) however the dilator must be pre-loaded into the line and the dilator-sheath is introduced over the wire simultaneously. Afterwards, the dilator and wire are removed together.''
**[[Central line: internal jugular]]
**[[Central line: subclavian]]
**[[Central line: supraclavicular]]
**[[Central line: femoral]]


==Complications==
==Complications==

Revision as of 14:26, 24 April 2021

Overview

  • Long (6-8cm), wide bore (6-9 Fr) single lumen catheter typically placed in a central vein
  • Have wide plastic hub on proximal end with one-way valve
    • Can be used to insert triple lumen catheter, Swan-Ganz catheter, and temporary external pacing wires
  • Commonly used for rapid fluid or blood administration (especially in trauma resuscitation)
    • Can infuse close to 600 ml/min with pressure[1]
  • Cordis and MAC are both trade names commonly used for sheath introducers

Indications

  • High volume/flow resuscitation (e.g. hemorrhagic shock)
  • Emergency venous access
  • Inability to obtain peripheral venous access
  • Repetitive blood sampling
  • Administering hyperalimentation, vasopressors, caustic agents, or other concentrated fluids
  • Insertion of pulmonary artery catheters
  • Insertion of transvenous cardiac pacemakers

Contraindications

Equipment Needed

Procedure

Same procedure as central line placement according to site (see below) however the dilator must be pre-loaded into the line and the dilator-sheath is introduced over the wire simultaneously. Afterwards, the dilator and wire are removed together.

Complications

Complications vary by site

  • Pneumothorax (more common with subclavian)
  • Arterial puncture (more common with femoral)
  • Catheter malposition
  • Subcutaneous hematoma
  • Hemothorax
  • Catheter related infection (historically more with femoral)
  • Catheter induced thrombosis
  • Arrhythmia (usually from guidewire insertion)
  • Venous air embolism (avoid with Trendelenburg position)
    • Theoretically higher risk with sheath introducer compared to other CVC's
  • Bleeding

See Also

Vascular access types

External Links

ETM Course: Large Bore Vascular Access Devices

References

  1. Brown, N., Kaylene M. Duttchen, and J. W. Caveno. "An evaluation of flow rates of normal saline through peripheral and central venous catheters." American Society of Anesthesiologists Annual Meeting, Orlando. Anesthesiology. 2008.