Yong et al 2015 - resonance metallic ureteric stent in a case of ketamine bladder induced bilateral ureteric obstruction with one year follow up.One-year history of recreational ketamine abuse presented with symptoms related to drug-induced ulcerative cystitis over twelve-months.She presented with acute renal failure with bilateral pyonephrosis and sepsis, and was initially treated with bilateral nephrostomy insertions and antegrade stenting.Bilateral antegrade insertion of 12 cm (6.0 french) cook resonance metallic ureteric stent was performed under local anaesthetic.This complaint was opened to capture off label use of resonance stent.Resonance metallic ureteric stent in a case of ketamine bladder induced bilateral ureteric obstruction with one year follow up - off-label use for non extrinsic source of obstruction.As per instructions for use that accompanies this device ifu0020-18 intended use "used for temporary stenting of the ureter in adult patients with extrinsic ureteral obstruction.Intended for one time use." twelve months following the resonance stent, the patient had stable renal function with minimal haematuria.
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Device evaluation: the unknown device of unknown lot number involved in this complaint was not available for evaluation.With the information provided, a document-based investigation was conducted.This complaint was raised in the literature article yong et al 2015 ¿resonance metallic ureteric stent in a case of ketamine bladder induced bilateral ureteric obstruction with one year follow up.¿ lab evaluation: the device evaluation could not be completed as the device or photographic evidence of the device was not returned for evaluation.Document review: manufacturing records review could not be completed as the lot number is unknown.However, prior to distribution all rms devices are subject to visual a visual inspection and functional checks to ensure device integrity.These inspections and functional checks are outlined in internal procedures in place at cirl.Review of historical data: historical data was not reviewed as the lot number is unknown.It should be noted that the instructions for use, states the following: ¿intended use: used for temporary stenting of the ureter in adult patients with extrinsic ureteral obstruction.¿.There is evidence to suggest that the customer did not follow the instructions for use.Root cause review: definitive root cause of off label use can be concluded based on customer/rep testimony.It is known that the device was used for ketamine bladder induced bilateral ureteric obstruction, which is considered a non-extrinsic obstruction.As per ifu, the rms device is intended to be used for ¿temporary stenting of the ureter in adult patients with extrinsic ureteral obstruction.¿ summary: complaint is confirmed based on customer and/or rep testimony.According to the initial reporter, the patient did not experience any adverse effects due to this occurrence.As per the literature article, ¿twelve months following the resonance stent, the patient had stable renal function with minimal haematuria.¿ complaints of this nature will continue to be monitored for potential emerging trends.
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