The DF-4 defibrillator connector may require removal and replacement with a traditional IS-1/DF-1 connector due to a lack of additional connectivity options.
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DF-4 connectors may require device exchange with IS-1/DF-1 systems; case reports leave open need for connector standardization.
The DF-4 implantable defibrillator connector was recently released for clinical practice. This connector facilitates lead to device connection, reduces bulk in the device pocket, and eliminates the risk of incorrect device connection. Unfortunately, new technology often introduces new challenges. We report the case of a 63-year-old male with chronic systolic heart failure referred for cardiac resynchronization therapy-defibrillator implant. Limitations implicit to the current iteration of this technology include a lack of additional connectivity. In the present case, these limitations ultimately warranted device removal and reimplant with a traditional trifurcating IS-1/DF-1 connector.
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Cogert et al. (2010) studied this question.
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