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A facility reported obstruction of flow of a certas valve (id 828804pl).Two years after implantation, the patient presented with one week of headache and altered mental status refractory to shunt adjustment.On (b)(6) 2025, the valve was removed and replaced.Doctor feels maybe an accumulation of protein in the csf (cerebrospinal fluid) from patient¿s primary pathology caused valve obstruction.
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Updated fields: d4, d9, g3, g6, h2, h3, h6, h11.The certas valve (828804pl) was not returned for evaluation after three good faith attempts (gfes) were made.Lot number information has not been provided; therefore, an evaluation of the device could not be performed, and device history record (dhr) could not be reviewed.The root cause(s) of the reported issue could not be determined.However, a probable root cause for the reported complaint is due to biological debris and protein build up interfering with the device or a kink in the catheter.If additional relevant information becomes available in the future, this complaint will be reopened, and the respective evaluation performed.Trends will be monitored for this and similar issues.At present, we consider this complaint to be closed.
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