On September 24, 2008, the Joint Commission, an independent, not-for-profit organization that accredits and certifies more than 15,000 health care organizations and programs in the United States, issued a heparin safety alert. (See JOINT COMMISSION WEBSITE: 9/24/08 Sentinel Event Alert, “Preventing errors relating to commonly used anticoagulants.”)

According to this report, “anticoagulants have been identified as one of the top five drug types associated with patient safety incidents in the United States.” (Id.) From January 1997 through December 2007, the Joint Commission reported that there 446 medication-related sentinel events (9.3 percent of all events) reported in their event database, with 7.2 percent (32) of these involving anticoagulants; of those, two-thirds (21) involve heparin. (Id. See also the illustrative chart on the Joint Commission Website.) Further, according to the United States Pharmacopeia MEDMARX database, there were a total of 59,316 medication errors related to anticoagulants reported to their database from 2001 to 2006 (these data do not include errors involving heparin lock flush). (Id.) According to the report, “nearly 60 percent of these errors reached the patient and nearly 3 percent resulted in harm or death.” (Id.) Further, “performance error (e.g., administration) is the most common cause of adverse events relating to anticoagulant medications.” (Id.)

The Joint Commission explained in its report that “heparin and warfarin in particular have narrow therapeutic ranges and a high potential for complications, so there is a greater risk of patient harm.” (Id.) It also listed the following factors which also contribute to medication errors involving anticoagulants:

• Lack of standardization for the naming, labeling and packaging of anticoagulants creates confusion. For example, heparin flush syringes have been confused with LMW heparin syringes. In addition, other, lesser-known anticoagulant drug names exist (e.g., enoxaparin, dalteparin, tinzaparin) and are used less commonly, which can result in duplicate medication orders and erroneous dosing.
• Keeping current with different dosing regimens for various patient populations, newer assay methods, the expanding lists of drug interactions, and the potential reversal strategies can be a challenge for providers—especially those who infrequently prescribe or administer anticoagulants.
• The specific and individualized instructions and monitoring information (for example, dose adjustments, lab values, changing patient condition) that accompany the prescribing and administration of anticoagulants may fail to get documented or communicated during transfers and hand-offs.
• Neonates and other pediatric patients are problematic to treat, specifically because the medications are formulated and packaged primarily for adults.

(Id.) The Joint Commission offers suggestions on how to reduce these dangers.

What is missing from the report is the danger of contamination and the lack of updated and appropriate testing for imported drugs, which unfortunately, may have claimed as many lives in a just few months, as dosage errors have claimed in the past ten years.

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