Acute Crit Care.  2022 Aug;37(3):391-397. 10.4266/acc.2022.00080.

The incidence of phlebitis development of high concentration of continuous amiodarone infusion with in-line filter compared to the low concentration without in-line filter: a retrospective propensity score-matched analysis

• Cheewatanakornkul S
• Vattanaprasan P
• Uppanisakorn S
• Bhurayanontachai R

• KMID: 2535303
• DOI: http://doi.org/10.4266/acc.2022.00080

Abstract

Background
Phlebitis-associated peripheral infusion of intravenous amiodarone is common in clinical practice, with an incidence between 5% and 65%. Several factors, including drug concentration, catheter size, and in-line filter used, are significantly associated with phlebitis occurrence. We performed a retrospective propensity score-matched analysis to find out whether in-line filter will reduce the incidence of amiodarone-induced phlebitis (AIP) in high concentration of amiodarone infusion compared to low concentration without in-line filter.
Methods
Clinical records of all patients who required intravenous amiodarone infusion for cardiac arrhythmias, between January 2017 to December 2019 were retrieved. The incidence of AIP was recorded and subsequently compared among high concentration (2 mg/ml) with an in-line filter and low concentration (1.5 mg/ml) infusion without an in-line filter after a 1 to 2 propensity score matched.
Results
The data indicated that among the 214 cases of amiodarone infusion collected, 28 cases used an in-line filter with high concentration while 186 cases received a low concentration of amiodarone infusion without an in-line filter. After 1:2 propensity score matching, the incidence of phlebitis in the high concentration with in-line filter group was significantly higher than the low concentration without in-line filter group (28.6% vs. 3.6%, P<0.01).
Conclusions
Despite the usage of in-line filter, the high concentration of amiodarone infusion resulted in a higher incidence of peripheral phlebitis. Central venous catheterization for a high concentration of amiodarone infusion is recommended.

Keyword

amiodarone; atrial fibrillation; infusion; phlebitis

Figure

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  Figure 1. Patients flowchart.

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