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3 clinical studies listed.
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Tundra lists 3 Electrodes, Implanted clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT07518927
Mapping LIFU Responses Using iEEG Recordings
The current study presents a unique opportunity to measure the immediate neural responses to brief, non-therapeutic transcranial low-intensity focused ultrasound (LIFU) pulses using intracranial electrodes. By recording time-locked signals in local and distant brain regions we can characterize circuit connectivity in real-time. We will use adult patients undergoing intracranial electrophysiological monitoring in an inpatient setting as our targeted population.
Gender: All
Ages: 21 Years - 75 Years
Updated: 2026-04-09
1 state
NCT04653012
Multi-level Approach of Brain Activity Using Intracranial Electrodes in Epileptic Patients
The main goal of this project is to study the mechanisms of epileptic activities using intracranial macro and micro electrodes in epileptic patients undergoing pre-surgical investigation. The recordings will also be used to study physiological mechanisms like sleep and different cognitive functions.
Gender: All
Ages: 18 Years - Any
Updated: 2025-09-08
NCT06842940
Slew Rate As a Predictor for Optimal Lead Fixation
The goal of this observational study is to identify the most reliable electrical parameter measured at the time of implantation that can predict optimal lead fixation and long-term lead performance in patients undergoing transvenous pacemaker or implantable cardioverter-defibrillator (ICD) implant. The main questions it aims to answer are: * Is there a correlation between the slew rate measured at the time of lead implantation and the sensing measured at the 12-month follow-up? * Is there a correlation between all electrical parameters recorded at implantation (including slew rate, current of injury, acute sensing, acute impedance, and acute pacing threshold) and the electrical parameters assessed at 12 months post-implantation (specifically chronic sensing, chronic impedance, and chronic pacing threshold)? Participants will undergo regular follow-up evaluations, with device interrogation visits scheduled at 1 and 12 months post-implantation as part of routine clinical care.
Gender: All
Ages: 18 Years - 100 Years
Updated: 2025-02-24