Long-term brachial artery catheterization: ischemic complications.

The brachial artery is not used for long-term catheterization and routine hemodynamic monitoring because a high incidence of ischemic complications is anticipated. However, in a review of 157 patients who had 225 percutaneous transbrachial hepatic artery catheters placed for infusion of chemotherapeutic agents, catheters remained in situ from 1 day to 14 months (median 68 days). One hundred seventy-three catheters (77%) were removed electively and 52 catheters (23%) were removed because of complications. Diminution or loss of the radial pulses occurred on insertion of 88 catheters (39.1%) and 16 of these (8%) were removed after 24 hours because ischemic symptoms developed. Subsequently, 25 other catheters (11.1%) were removed because of complications such as paresthesia, eight (3.5%); brachial artery thrombosis, four (1.7%); microembolization, three (1.3%); claudication, two (0.8%); and pseudoaneurysm, one (0.4%). Seven catheters (3.1%) were removed because of a combination of pallor, diminished pulses, and muscle weakness. Hemorrhage from the arteriotomy site necessitated the removal of 11 other catheters (4.9%). Amputation, ischemic ulceration, major neuromuscular sequelae, and peripheral embolization to the head or lower limbs did not occur. This study suggests that long-term brachial artery catheterization is associated with a low incidence of permanent ischemic complications.