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 Evaluate Electrophysiology of Deep Brain Stimulation Rochester, Minn. The primary purpose of this study is to map the electrophysiological properties of deep brain stimulation (DBS) targets and associated areas by analyzing signals recorded for clinical purposes. Electrophysiological properties such as spike statistics, power spectral density, spike-field coupling, and phase-amplitude coupling may be correlated to anatomic structures. An atlas with these properties could improve DBS lead targeting. Treatment Resistant Depression Subcallosal Cingulate Network Rochester, Minn. The purpose of this study is to evaluate the effectiveness and safety of bilateral stimulation of the SCCwm using the Infinity DBS system as an adjunctive treatment of non-psychotic unipolar Major Depression Disorder (MDD) for adults who are experiencing an Major Depressive Episode (MDE) with inadequate response to 4 or more antidepressant treatments. Blood-Brain Barrier Disruption (BBBD) for Liquid Biopsy in Subjects With GlioBlastoma Brain Tumors Rochester, Minn. The purpose of this study is to evaluate the safety and effectiveness of using Exablate Model 4000 Type-2.0/2.1 in adults with Glioblastoma brain tumors to increase temporarily the permeability of the blood brain barrier, allowing increased passage of circulating free DNA (cfDNA) for sampling and analysis. Pituitary tumor registry Rochester, Minn. The purpose of this data registry involves the collection of standard of care clinical treatment regimens, diagnostic information and surgical outcomes which may include human specimens and associated genomewide expression data. CT Angiography of the Aorta following Fenestrated Branched Endovascular Aneurysm Repair (F-BEVAR) using Tube Potential Selection and Weight-based Method: Effects on Image Quality and Radiation Dose Rochester, Minn. The objective of this study is to evaluate the image quality and radiation dose of a CT angiography protocol (CTA) using tube potential selection and weight-based method. A Study to Establish a Pediatric Spine Registry Rochester, Minn., Minneapolis, Minn. The purpose of this study is to collect data about patients with chest wall and spinal deformities to develop a multicenter registry. This will speed the pace of medical advancement and treatment recommendations for these conditions. Study of Breast Cancer Risk Assessment in Female Patients with Benign Breast Disease Rochester, Minn., Jacksonville, Fla. The purpose of this study is to to bring molecular risk prediction for breast cancer into the clinical arena through: the establishment of a large tissue repository from a retrospective cohort of women with benign breast disease with complete and long-term clinical follow-up to identify those who developed breast cancer (cases) and those who did not (controls); the application of potential biomarkers of risk to this archival tissue set; and, the discovery of new, potentially relevant biomarkers of risk in fresh and frozen specimens of benign breast disease. A Study to Analyze Intracerebral Hemorrhage Hematoma Jacksonville, Fla. The purpose of this study is to to take the usual waste material from the removal of hematoma and apply an array of -Omics approaches (including for example genomics, transcriptomics, lipidomics, proteomics, and metabolomics) to identify biomarkers that assess prognosis and identify key therapeutic targets. A Study to Establish a Registry for Treatment of Post-hemorrhagic Hydrocephalus in Neonates Rochester, Minn. The purpose of this study is to establish a prospective, standardized data collection for the patients who undergo surgical treatment of progressive post-hemorrhagic hydrocephalus in neonates with the focus on comparing neuroendoscopic lavage (NEL) with other standard treatment options such as external ventricular drainage (EVD), ventricular access device (VAD) and ventricular subgaleal shunt (VSGS). Intraoperative Contrast Enhanced Ultrasound for the Identification of Pituitary Adenoma in Cushing’s Disease Rochester, Minn. The purpose of this study is to combine recent advances in ultrasound imaging, specifically an endonasal transducer array and contrast enhanced ultrasound, to offer an intraoperative image-guided solution for lesion-specific surgical resection to impact clinical outcome. Pagination Clinical studies PrevPrevious Page Go to page 88 Go to page 99 Go to page 1010 Go to page 1111 Go to page 1212 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