It was reported that the procedure was to treat a de novo lesion in the non-tortuous, moderately calcified, 90% stenosed proximal left anterior descending (lad) coronary artery.
A 3.
75 x 8 mm nc trek rx balloon dilatation catheter (bdc) was selected for the procedure utilizing the kissing balloon method.
There was no resistance felt while removing the protective mandrel/sheath removal, there were no issues noted during prep (air aspiration), but the balloon was not soaked in saline prior to use.
The bdc was advanced with no resistance to the lesion and inflated to 12 atmospheres with no issues noted; however the balloon would not fully deflate even after several attempts.
The balloon was re-inflated to 14 atmospheres, but would still only partially deflate.
The guiding catheter and bdc were removed from the anatomy as a single unit.
Upon removal for the anatomy the bdc was inspected and no tear, kink, or shaft separation were found.
Another attempt was made to fully deflate the balloon which was unsuccessful.
There was no reported clinically significant delay in the procedure.
There was no reported adverse patient sequela.
No additional information was provided.
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(b)(4).
It was initially reported that the device would not be returning for analysis; however, the device was returned.
Evaluation summary: the device returned for analysis.
The complaint investigation determined the reported difficulty was related to manufacturing issues associated with the protective sheath.
On (b)(6) 2017, abbott vascular decided to initiate a voluntary field action for some sizes and lots of the nc trek family of dilatation catheters for difficulty to remove sheath which may lead to inflation or deflation issues.
Abbott vascular performed a comprehensive investigation which included device analysis, manufacturing evaluation and trend analysis.
The root cause identification was complicated by the fact that users were describing multiple symptoms when reporting the complaints.
To date, the frequency of worldwide reported events for difficulties removing the protective balloon sheath, inflation and deflation has reached an actionable limit, thus abbott vascular communicated the voluntary field action to the fda on (b)(6) 2017 [medwatch # 2024168-2017-02310].
Corrective action has been implemented per site operating procedures.
The product will continue to be trended.
The abbott internal recall number is (b)(4).
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