Nitrous Oxide Vasodilation Healthy Adult Volunteers
NCT01785030 · Status: TERMINATED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 7
Last updated 2019-01-16
Summary
Nitrous oxide (N2O) is a gas that is normally used to take away pain and anxiety during painful medical procedures. However, one of its effects is to also make veins appear larger and more visible. This is useful when there is a patient who needs to have an intravenous (IV) needle put in their skin to give them medicine or fluids, but may have veins that are very hard to see or feel. The mechanism of this observed effect is not entirely clear. The purpose of this study is to use an ultrasound to directly measure whether there is an actual change size of veins or change in blood flow in healthy adult volunteers when you give them 50% nitrous oxide, and see whether or not this change in size, or change in flow, is what causes the changes in visibility or palpability of the vein.
Conditions
- Peripheral Vein Vasodilation
Interventions
- DRUG
-
50% Nitrous oxide
Sponsors & Collaborators
- lead OTHER
Principal Investigators
-
Daniel S Tsze, MD, MPH · Columbia University
Study Design
- Allocation
- NA
- Purpose
- TREATMENT
- Masking
- NONE
- Model
- SINGLE_GROUP
Eligibility
- Min Age
- 19 Years
- Sex
- ALL
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2013-02-28
- Primary Completion
- 2017-02-28
- Completion
- 2017-02-28
Countries
- United States
Study Locations
More Related Trials
-
Effect of Nitroglycerin Ointment on Mastectomy Flap Necrosis
NCT01608880 ·Status: COMPLETED ·Phase: NA
-
Percentage Venous Options in Pediatrics & Adults
NCT01453335 ·Status: COMPLETED
-
Non-invasive Venous Air Plethysmography Assessment of Venous Hemodynamics in Patients Suspected Deep Venous Obstruction Used in Conjunction With Intermittent Pneumatic Compression.
NCT06519435 ·Status: RECRUITING
-
Compression Device Safety Study
NCT00732823 ·Status: COMPLETED ·Phase: PHASE2
-
Combined and Simultaneous Approach for the Treatment of High-risk Gastric Varices Using B-RTO and EVO
NCT03853720 ·Status: UNKNOWN ·Phase: NA
-
A Trial to Evaluate Negative Pressure Incision Management System for Groin Wounds in Vascular Surgery Patients
NCT02399111 ·Status: TERMINATED ·Phase: NA
-
Adrenaline Reduces Ecchymoses and Hematomas and Improves Quality of Life After Classic Saphenous Vein Stripping
NCT04758728 ·Status: COMPLETED ·Phase: NA
-
The Venous Distension Reflex and Orthostatic Hypertension
NCT03496792 ·Status: RECRUITING ·Phase: NA
-
Cooling Lower Leg Skin to Prevent Venous Leg Ulcers in Patients With Poor Vein Circulation
NCT01509599 ·Status: COMPLETED ·Phase: PHASE1/PHASE2
-
Radiofrequency Ablation of Vascular Anomalies
NCT06803667 ·Status: NOT_YET_RECRUITING ·Phase: NA
-
A Comparison of the Effects of Neuromuscular Electrical Stimulation and Intermittent Pneumatic Compression on Blood Flow in the Lower Limb
NCT01894997 ·Status: COMPLETED ·Phase: NA
-
Loupe-Assisted Varicocelectomy With Nitroglycerin Instillation Versus Microscopic Varicocelectomy
NCT07306572 ·Status: COMPLETED ·Phase: NA
-
Balloon-occluded Retrograde Transvenous Obliteration for Gastric Variceal Rebleeding
NCT06106971 ·Status: RECRUITING ·Phase: PHASE3
-
Feasibility Study of Cryotherapy for Chronic Venous Disorders
NCT00617825 ·Status: COMPLETED ·Phase: NA
-
Hypnoanalgesia in Surgical and Endovenous Treatment of Varicosis
NCT03601572 ·Status: WITHDRAWN
-
Evaluation of a Venous-Return Assist Device (Venowave) to Treat Post-Thrombotic Syndrome: A Randomized Controlled Trial
NCT00182208 ·Status: COMPLETED ·Phase: PHASE3
-
Efficacy and Safety of Endovenous Ablation for Relief of Knee Pain in Elderly Patients With Lower Extremity Varicose Veins: A Prospective Observational Study
NCT07239284 ·Status: NOT_YET_RECRUITING
-
Clinical Verification Evaluation of VeinViewer® Device
NCT01807507 ·Status: COMPLETED
-
Minimally Invasive Superficial Venous Insufficiency Surgery and Digital Sedation
NCT06228365 ·Status: RECRUITING ·Phase: NA
-
Video Documentation of Localized Complications
NCT01453322 ·Status: COMPLETED
-
Venous Pressure Measurement of the Great Saphenous Vein Using Controlled Compression Ultrasound in Healthy Persons and Patients With Chronic Venous Disease as a New Non Invasive Method for Investigation of the Pathophysiology in Primary Varicose Veins
NCT01000909 ·Status: UNKNOWN
-
Venclose RF Ablation System for the Treatment of IPVs
NCT04386785 ·Status: COMPLETED ·Phase: NA
-
Radiofrequency Ablation vs Laser Ablation of the Incompetent Greater Saphenous Vein
NCT02236338 ·Status: COMPLETED ·Phase: PHASE4
-
Study of a Novel Thrombectomy Device to Treat Acute Iliofemoral Deep Venous Thrombosis
NCT02414802 ·Status: UNKNOWN ·Phase: NA
-
COMFORT: A Multicenter, Open-label, Randomized, Crossover Study
NCT02462720 ·Status: COMPLETED ·Phase: PHASE4