Clinical trials Below are current clinical trials.124 studies in Surgery (open studies only). Filter this list of studies by location, status and more. A Study to Analyze Gender Congruence After Gender Confirmation Surgery Rochester, Minn. The purpose of this study is to assess the success and effectiveness of gender confirmation surgeries on eliminating gender incongruence and improving life satisfaction, and compare patient’s status with the preoperative results. Outcomes of Open and Endovascular Repair for Ruptured and Non-Ruptured Internal Iliac Artery Aneurysms Rochester, Minn. The purpose of this study is to evaluate different techniques to repair internal iliac artery aneurysms. Report short and long term clinical outcomes with markers of pelvic perfustion. Compare partial pelvic perfusion preservation with bilateral complete preservation. Acute Modulation of Stereotyped High-Frequency Oscillations Rochester, Minn. The purpose of this study is to do data collection of EEG findings to determine whether new types analysis of intracranial EEG can add different and possibly useful information to standard types of analysis of intracranial EEG. Intracranial EEG data will be collected intraoperatively and postoperatively during routine clinical monitoring, and will be analyzed by researchers for functional brain mapping and the investigation of high frequency oscillations (HFO's), for the purpose of identifying functional and epileptogenic brain areas. A Study to Evaluate the Process of Aging in Human Atherosclerosis Rochester, Minn. The purpose of this study is to critically test the hypothesis that senescent-cell derived factors (cell aging), in particular IGFBP3, suppress the innate repair capacity of vascular smooth muscle cells (VSMC) in human atherosclerosis. A Study of Mesenchymal Stem Cell (MSC) Adherence and Vessel Wall Penetration Following Intra-arterial Delivery Subsequent to Controlled Balloon Angioplasty Jacksonville, Fla. The purpose of this study is to determine the amount of MSCs that adhere to predetermined areas of arterial wall following balloon angioplasty vs no intervention, and to characterize the effect of intra-arterial injection of MSCs on predetermined areas of arterial wall via transcriptome analysis. A Study to Evaluate Biomarker Target Stimulation Rochester, Minn. The purpose of this study is to understand how electrical stimulation of the brain can modulate and suppress interictal epileptiform activity as a step on the path to developing new therapies for epilepsy. A Study to Evaluate the Feasibility of Intraoperative Microdialysis (tissue sampling) during Neurosurgery for Central Nervous System Malignancies Rochester, Minn. Intraoperative Microdialysis During Neurosurgery for Central Nervous System Malignancies A Study Of Acute Stimulation For The Modulation Of Epileptic Events With A Closed-Loop Brain Interchange System In Drug Resistant Epilepsy Rochester, Minn. The purpose of this study is to investigate the feasibility of detecting and modulating pathological high-frequency oscillations (HFOs) generated by the seizure onset zone (SOZ) of drug-resistant epilepsy patients using CorTec's Brain Interchange Evaluation Kit (manual provided as supplementary material). A Study Of Vagus Nerve Stimulation (VNS) With Mobility Training For Gait Recovery After Chronic Ischemic Stroke Rochester, Minn. The purpose of this study is to evaluate the safety, feasibility, and efficacy of vagus nerve stimulation (VNS) paired with mobility training to improve lower extremity function and gait in individuals with chronic ischemic stroke. Brachial plexus patients undergoing upper limb amputation Rochester, Minn. The purpose of this study is to follow Mayo Clinic patients with severe brachial plexus injuries who underwent upper limb amputation. Pagination Clinical studies PrevPrevious Page Go to page 44 Go to page 55 Go to page 66 Go to page 77 Go to page 88 NextNext Page Request an appointment Expertise & rankingsResearch April 04, 2026 Share on: FacebookTwitter SurgerySectionsOverviewTests & proceduresConditions treatedDoctorsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferralsFrozen SectionPathology Lab Research: It's all about patients Show transcript for video Research: It's all about patients [MUSIC PLAYING] Joseph Sirven, M.D., Professor of Neurology, Mayo Clinic: Mayo's mission is about the patient. The patient comes first. So the mission and research here is to advance how we can best help the patient, how to make sure the patient comes first in care. So in many ways, it's a cycle. It can start with as simple as an idea worked on in a laboratory, brought to the patient bedside, and if everything goes right — and let's say it's helpful or beneficial — then brought on as a standard approach. And I think that is one of the unique characteristics of Mayo's approach to research — that patient-centeredness — that really helps to put it in its own spotlight. SectionsRequest an AppointmentOverviewTests & proceduresConditions treatedDoctorsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals ORG-20475391 Medical Departments & Centers Surgery