A galil iceforcetm 2.1 cx 90 degree cryoablation needle was successfully connected to galil's visualicetm cryoablation system and passed the vendor integrity test; 5 other probes of the same model were connected to the system during this procedure.Two freezing cycles of 8 and 6 minutes, respectively, were successfully performed with good ice formation.The two cycles were interspersed by a passive thaw cycle.Subsequently, a 10 minute-cycle of active, resistive thaw (i-thaw) was performed.At the end of that cycle, ct imaging revealed substantial amount of retroperitoneal and venous gas.Additionally, a moderate skin burn was observed at the insertion point of one needle.The patient was immediately placed with the head down and a head ct was obtained which was negative for intracranial air.The patient was carefully woken up with expert anesthesia care and no neurologic deficit was noted.After the probes were extracted from the patient, a leak along the shaft of the same needle that caused the skin burn appeared when the probe was inserted in its testing environment and either freeze, thaw or i-thaw was activated.The leakage originate at the distal end of the shaft, at the junction with the trocar.Microct and optical microscopy both revealed a rupture point at the location where the leak appeared.Fda safety report id# (b)(4).
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