ZEPHYR ENDOBRONCHIAL VALVE (EBV)
Report
- Report Number
- 3007797756-2020-00142
- Event Type
- Death
- Date Received
- July 3, 2020
- Date of Event
- June 1, 2020
- Report Date
- June 2, 2020
- Manufacturer
- PULMONX CORPORATION
- Product Code
- NJK
- PMA / PMN Number
- P180002
- Adverse Event
- Yes
- Report Source
- Manufacturer report
- Reporter Location
- US
- Reporter Occupation
- 003
Narratives
PNEUMOTHORAX IS THE MOST COMMON SIDE EFFECT ASSOCIATED WITH THE ZEPHYR VALVE TREATMENT (CRINER ET AL. A MULTICENTER RANDOMIZED CONTROLLED TRIAL OF ZEPHYR ENDOBRONCHIAL VALVE TREATMENT IN HETEROGENEOUS EMPHYSEMA (LIBERATE). AM J RESPIR CRIT CARE MED. 2018; 198 (9): 1151-1164). TARGETED LOBAR DEFLATION LIKELY CAUSES INFLATION OF THE IPSILATERAL LOBE, WHICH CAN RESULT IN A TEAR OF THE ALREADY COMPROMISED PARENCHYMAL TISSUE OF THE EMPHYSEMATOUS IPSILATERAL LOBE, RESULTING IN A PNEUMOTHORAX (CRINER ET AL. A MULTICENTER RANDOMIZED CONTROLLED TRIAL OF ZEPHYR ENDOBRONCHIAL VALVE TREATMENT IN HETEROGENEOUS EMPHYSEMA (LIBERATE). AM J RESPIR CRIT CARE MED. 2018; 198 (9): 1151-1164). IN THE LIBERATE STUDY (IDE CLINICAL STUDY USED TO SUPPORT PMA P180002'S APPROVAL), 26.6% OF THE ZEPHYR VALVE SUBJECTS EXPERIENCED A PNEUMOTHORAX IN THE TREATMENT PERIOD ([LESS THAN OR EQUAL TO 45 DAYS). THESE WERE MANAGED USING STANDARD OF CARE PROCEDURES AS PER PREVIOUSLY PUBLISHED GUIDELINES (VALIPOUR, ARSCHANG, ET AL. RESPIRATION 87.6 (2014): 513-521). IN 17.4% OF THE EVENTS, THE PNEUMOTHORAX RESOLVED WITHOUT ANY ADDITIONAL INTERVENTION WITH SUBJECTS UNDER CAREFUL OBSERVATION. IN OVER HALF THE EVENTS (56.5%), THE PNEUMOTHORAX WAS MANAGED WITH A CHEST-TUBE ONLY. AN ADDITIONAL 13% OF THE EVENTS WERE MANAGED WITH A CHEST-TUBE AND THE TEMPORARY REMOVAL OF ONE OR MORE VALVES, WHILE ANOTHER 13% OF THE EVENTS WERE MANAGED WITH A CHEST-TUBE AND REMOVAL OF ALL THE IMPLANTED VALVES. UPON SUCCESSFUL RESOLUTION OF THE PNEUMOTHORAX, REMOVED VALVES CAN BE REPLACED. PATIENTS THAT EXPERIENCED A PNEUMOTHORAX EXPERIENCED CLINICAL BENEFITS OF THE ZEPHYR VALVE TREATMENT THAT WERE SIMILAR TO THE BENEFITS EXPERIENCED BY PATIENTS WHO DID NOT HAVE A PNEUMOTHORAX. THE ZEPHYR EBV SYSTEM IFU AND PULMONX TRAINING PROGRAM BOTH SPECIFICALLY REFERENCE PNEUMOTHORAX AS A KNOWN SIDE EFFECT OF THIS PROCEDURE AND THE PUBLISHED GUIDELINES (VALIPOUR, ARSCHANG, ET AL. "EXPERT STATEMENT: PNEUMOTHORAX ASSOCIATED WITH ENDOSCOPIC VALVE THERAPY FOR EMPHYSEMA-POTENTIAL MECHANISMS, TREATMENT ALGORITHM, AND CASE EXAMPLES." RESPIRATION 87.6 (2014): 513-521). THE REPORTED EVENT ALIGNS WITH THE EXPERIENCE OBSERVED IN THE LIBERATE CLINICAL STUDY AND IS AN EXPECTED SIDE EFFECT TO THE ZEPHYR VALVE TREATMENT.
ON (B)(6) 2020, PATIENT HAD ZEPHYR VALVES IMPLANTED. A PNEUMOTHORAX WAS OBSERVED IN THE LEFT UPPER LOBE AND A CHEST TUBE WAS INSERTED. THE PATIENT WAS IMPROVING BUT THEN CONTINUED TO WORSEN. ON (B)(6) 2020, THE VALVES WERE REMOVED. THE PATIENT THEN EXPERIENCED A LARGER PNEUMOTHORAX AND WENT TO INTERVENTIONAL RADIOLOGY FOR ANOTHER CHEST TUBE TO BE PLACED. THE PATIENT DECLINED FURTHER AND AS OF (B)(6) 2020 THERE WAS TALK OF HIM BEING MOVED TO HOSPICE. THE PATIENT PASSED AWAY (B)(6) 2020 AT THE HOSPITAL.
Devices
| Seq | Brand | Generic | Product Code | Manufacturer | Model | Lot | UDI-DI |
|---|---|---|---|---|---|---|---|
| 694482 | ZEPHYR ENDOBRONCHIAL VALVE (EBV) | ENDOBRONCHIAL VALVE | NJK | PULMONX CORPORATION | ZEPHYR 4.0 EBV |
Patients
| Seq | Age | Sex | Outcome | Treatment |
|---|---|---|---|---|
| 1 | 70 YR | Death| H| L| O| R |