Clinical trial NCT06127615: The Efficacy of the Longeviti ClearFit Implant in Craniectomies for Post-Operative Monitoring in Chronic Subdural Hematomas
Official title: The Efficacy of the Longeviti ClearFit Implant in Craniectomies for Post-Operative Monitoring in Chronic Subdural Hematomas
Study type: INTERVENTIONAL
Overall status: NOT_YET_RECRUITING
Phase: NA
Conditions: Chronic Subdural Hematoma
Lead sponsor: University of Kansas Medical Center
Sponsor class: OTHER
First posted: 2023-11-13
Enrollment: 50
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: DIAGNOSTIC

Brief summary: Chronic subdural hematomas are frequent neurosurgical issues that are most often treated with burr hole craniectomies to drain the subdural fluid. At the chronic stage, a subdural hematoma is more liquified and easily washed out through burr hole openings. However, it often requires frequent imaging and monitoring to ensure that fluid does not reaccumulate in the subdural space, that the washout was adequate, and that further intervention/repeat intervention is not required, particularly if the patient develops acute changes in neurologic status or lacks improvement in initial symptomatology. Therefore, these patients require multiple repeated CT head images during their inpatient and post-operative follow-up course. This leads to high radiation doses to patients and high-cost burden. The Longeviti ClearFit Cover was developed to allow for ultrasound imaging through the implanted cover. The skull's acoustic properties prevent ultrasound from being used through the bone, therefore limiting its use in post-operative neurosurgical patients. Using ultrasound would remove the need for high radiation doses with CT, could be done very quickly and easily at bedside or in the clinic to check subdural space or ventricle size, and is much lower cost. This ClearFit implant would be utilized in place of a burr hole cover, typically titanium, that is implanted in most other cases. The aim of this study is to prospectively assess patients with surgically treated chronic subdural hematomas via craniectomy that have the craniectomy site covered with the Longeviti ClearFit, compared retrospectively to a matched cohort of patients that had their craniectomy site for the same procedure covered with the typically used titanium/metal. This will allow us to determine if this new implant results in reduced need for repeated CT imaging by utilizing bedside clinician-performed ultrasound and reduces overall cost for patients.


Eligibility criteria: Inclusion Criteria:

* Adult patients \>18 years old; patients determined by surgeon to have a chronic subdural hematoma that is treated with craniectomy that would allow for implantation of a ClearFit cover

Exclusion Criteria:

* Pediatric patients, patient with allergy to the material the implant is made with (polymethylmethacrylate)

Primary outcomes:
measure: Patient Radiation
timeFrame: from time of implant to last follow-up, anticipate 1 year
measure: Patient cost
timeFrame: from time of implant to last follow-up, anticipate 1 year
Secondary outcomes:
measure: Quality of imaging
timeFrame: from time of implant to last follow-up, anticipate 1 year
measure: Provider experience caring for patient
timeFrame: from time of implant to last follow-up, anticipate 1 year
Other outcomes:
Locations:
Study officials:
References:
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citation: Belzberg M, Shalom NB, Lu A, Yuhanna E, Manbachi A, Tekes A, Huang J, Brem H, Gordon C. Transcranioplasty Ultrasound Through a Sonolucent Cranial Implant Made of Polymethyl Methacrylate: Phantom Study Comparing Ultrasound, Computed Tomography, and Magnetic Resonance Imaging. J Craniofac Surg. 2019 Oct;30(7):e626-e629. doi: 10.1097/SCS.0000000000005651.
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citation: Lee RP, Meggyesy M, Ahn J, Ritter C, Suk I, Machnitz AJ, Huang J, Gordon C, Brem H, Luciano M. First Experience With Postoperative Transcranial Ultrasound Through Sonolucent Burr Hole Covers in Adult Hydrocephalus Patients. Neurosurgery. 2023 Feb 1;92(2):382-390. doi: 10.1227/neu.0000000000002221. Epub 2022 Nov 15.
citation: Doron O, D'Amico RS, Langer DJ. The Cranial Window: Opportunities for the Use of Bedside Ultrasound Facilitated by Sonolucent Implants in Neurosurgical Patients. World Neurosurg. 2022 Sep;165:142-144. doi: 10.1016/j.wneu.2022.05.084. Epub 2022 May 23. No abstract available.
citation: Niesen WD, Rosenkranz M, Weiller C. Bedsided Transcranial Sonographic Monitoring for Expansion and Progression of Subdural Hematoma Compared to Computed Tomography. Front Neurol. 2018 May 28;9:374. doi: 10.3389/fneur.2018.00374. eCollection 2018.