MAUDE Adverse Event Report: GYNESONICS SONATA TRANSCERVICAL FIBROID ABLATION SYSTEM; ULTRASOUND-GUIDED INTRAUTERINE RADIO-FREQUENCY ABLATION SYSTEM

Model Number	SONATA2-110
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Codes	Fever (1858); Thrombocytopenia (4431)
Date of Event	05/24/2024
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
There was no report of device malfunction during the procedure and the system functioned as expected.It's not clear what caused this, nor does anyone understand its significance in this patient.There was no evidence of infection, no abnormal physical exam findings, just isolated fevers and low platelets.Submission of this report is associated with the recent acquisition of gynesonics by hologic, inc.During the integration into hologic's adverse event reporting system and procedures, a review of historical adverse events was performed.As a result this event was identified as being reportable on aug 12, 2025 and is being reported retroactively out of an abundance of caution.
Event or Problem Description
8-cm fibroid treated two weeks ago on the friday before memorial day.The patient came in 24 hours later with fevers-wbc wnl, 102º-103º, normal exam, sent home pod #3-came into ew with fevers, 102º-103º and her platelet count (platelets were only 35k).Hb wnl.Admitted-blood cultures were all negative, med consult, heme onc all stumped.Still spiking temps x 48 hours but finally defervesced and sent home on antibiotics.All good now.A platelet count below 100k is definitely abnormal, and when it gets very low (~5k-10k), spontaneous bleeding is common.It's not clear what caused this, nor does anyone understand its significance in this patient.There was no evidence of infection, no abnormal physical exam findings, just isolated fevers and low platelets.

• Brand Name: SONATA TRANSCERVICAL FIBROID ABLATION SYSTEM
• Common Device Name: ULTRASOUND-GUIDED INTRAUTERINE RADIO-FREQUENCY ABLATION SYSTEM
• Manufacturer (Section D): GYNESONICS; 200 cardinal way #250; redwood city CA 94063
• Manufacturer (Section G): GYNESONICS; 200 cardinal way; #250; redwood city CA
• Manufacturer Contact: timothy rossi ; 200 cardinal way; #250; redwood, CA 94063 ; 6502416115
• MDR Report Key: 22963986
• Report Number: 3005875675-2025-00050
• Device Sequence Number: 9257196
• Product Code: KNF
• UDI-Device Identifier: 10817929020326
• UDI-Public: (01)10817929020326(11)231011
• Combination Product (Y/N): N
• Initial Reporter State: KY
• Initial Reporter Country: US
• PMA/510(K) Number: K233848
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 09/04/2025

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Health Professional
• Device Model Number: SONATA2-110
• Device Catalogue Number: SONATA2-110
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/03/2024
• Initial Report FDA Received Date: 09/04/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 10/11/2023
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Hospitalization
• Patient Sex: Female