37 Clinical Trials for Various Conditions
The objective of this study is to evaluate the performance of Masimo RD SET® SpO2 sensors in subjects with light and dark skin pigmentation in the intensive care therapeutic area.
Validate the performance of Philips FAST SpO2 with Masimo Pulse Oximetry Sensors in determining functional arterial oxygen saturation (SpO2) using arterial saturation (SaO2) as a reference in the range of 70-100% in subjects of varying skin pigmentation.
The goal of this clinical trial is to determine if pulse oximeters show an SaO2-SpO2 discrepancy that correlates with skin pigmentation such that pulse oximetry will overestimate oxygenation in newborns with darker skin. The main questions it aims to answer is if SaO2-SpO2 discrepancy varies with the degree of skin pigmentation among neonates, if gestational age has an influence on SaO2-SpO2 discrepancy, and if packed red blood cell (PRBC) transfusion has an influence on SaO2-SpO2 discrepancy in newborns with various degrees of light and dark skin. Researchers will compare SaO2 and SpO2 values in neonates of various skin pigmentation.
Finger pulse oximetry SpO2 is widely used to estimate arterial oxygen saturation SaO2. Current Spo2 targets do not take into consideration the many variables that affect that correlation in particular skin pigmentation. This study aims to evaluate different FDA approved pulse oximeters (Nonin co-pilot, massimo Radical 7, Philips-standard of care monitor, innovo premium iP900BP, nellcor PM1000N, Nano100) with SaO2 reference values obtained by an arterial blood gas in subjects with different skin pigments measured by a skin color scale as well as self-identification of race.
In this prospective study, the investigators will enroll 154 children with arterial lines to determine the accuracy of pulse oximeters in children with darker skin pigmentation. Studies in adults suggest pulse oximeters may overestimate the true level of oxygenation in the blood as measured directly by co-oximetry. However, pediatric data are relatively limited. This study, which is funded by the FDA through the Stanford-UCSF (University of California San Francisco) Clinical Excellence in Regulatory Science and Innovation (CERSI) Program, will determine if the error/bias is associated with skin pigmentation and whether the error falls outside FDA standards. The broader purpose of the study is to work toward eliminating health disparities.
This is a prospective observational study designed to quantify and understand errors in pulse oximetry in hospitalized patients in relation to their skin pigmentation. It is driven by three recent retrospective studies showing missed diagnosis of hypoxemia in patients across a spectrum of skin pigmentation, defined as blood SaO2 \<90% when their pulse oximeter reads 92% or greater.
The investigators' study aims to study how melanin index (mx) affects the deviation between SpO2 and SaO2, which becomes generally greater as hypoxia increases. The studies reviewed grouped individuals by race or have assigned individuals into groups like "dark", "intermediate", or "light" to describe pigmentation. Both of these methods are neither standardized nor objective, looking for race identifiers when it is more useful to be considering skin pigmentation identifiers. Skin pigmentation is a spectrum and it should be treated as such when trying to characterize relationships involving measurable factors such as melanin index. The investigators will similarly measure the deviation between SpO2 and SaO2 however novel in that the investigators will quantitatively measure skin pigmentation via a light reflectance measurement device by Photovault.
Evaluation of the noninvasive oxygen saturation (SpO2) performance of the noninvasive Masimo MightySat against reference arterial blood samples analyzed by a laboratory CO-oximeter reference instrument. The study will include different subgroups to assess the performance across different genders and skin pigmentation.
This study is designed to compare the accuracy of a noninvasive measurement of oxygen saturation compared to reference values obtained by a laboratory blood gas analyzer. Subgroups will be analyzed by skin pigmentation and self-identified race/ethnicity information. Study procedures follow ISO-80601-2-61:2011 standard requirements for basic safety and essential performance of pulse oximeter equipment. Arterial blood samples will be collected from subjects while undergoing a controlled desaturation procedure wherein the concentration of oxygen inhaled is slowly reduced until the subject's arterial oxygen concentration is approximately 70%.
The investigators plan to enroll 500 consecutive Subjects at a major trauma center for this study. For each patient, the body mass index (BMI), age, sex, diastolic pressure and mean arterial pressure (MAP) at time of measurements. Additional information including diseases such as diabetes and vascular disorders will be recorded. Social demographics including alcohol and tobacco use will be recorded. This is important as alcohol and tobacco use could also contribute to cardiovascular diseases. The skin pigmentation of each subject will be recorded. Two different methods will be used for this measurement. Each patient will be graded on a six point scale as described by Young (Young, 1997). Additionally, each subject will have their skin measured using a reflectance colorimeter. The colorimeter, DermaSpectrometer II (cyberDerm, Broomall, PA) uses visible light to measure the amount of light reflected off the skin. By measuring the light reflectance, the skin pigmentation can be measure (Clarys, 2000). Muscle oxygenation will be measured using a continuous dual wavelength near infrared spectrometer. Using the different absorption characteristics of deoxyhemoglobin and oxyhemoglobin, the concentration of oxyhemoglobin in the muscle at an approximate depth of 2.5 cm is determined. The INVOS cerebral oximeter (Somanetics, Troy, MI) will be used for all measurements.
The purpose of this study is to study changes in skin color that may be caused by using one of the three eye medicines: Xalatan, Travatan or Lumigan.
The objective of this study is to assess the level of pigmentation following an acute exposure of skin to light regimens representative of portions of the natural sunlight spectrum and that contain Deep UVA wavelengths with or without HEV Blue Light, as compared to non-irradiated control skin.
The purpose of this study is to analyze facial pigmentation and skin microbiome changes after topical almond oil application, compared to the use of topical hydroquinone.
Autologous Adipose Cell Therapy is a series of process designated to address the demerits of the traditional autologous fat grafting and dermal fillers, while enhancing the versatility and aesthetic outcomes. In this study, the goal is to evaluate the safety and efficacy of Autologous Adipose cell Therapy for skin rejuvenation and hair improvement in human application.
The aim of this project is to test the accuracy of pulse oximeters during mild, moderate and severe hypoxia. This is done by comparing the reading of the pulse oximeter during brief, steady state hypoxia with a gold-standard measurement of blood oxygen. This study will be done on healthy male or females between the age group of 18-50.
The purpose of this study is to asses the impact of topically applying a form of vitamin C known as tetrahexyldecyl Ascorbate (THDA) along with a novel anti-aging ingredient, acetyl zingerone, compared against applying THDA alone.
The goal of this study is to specifically examine changes in facial skin appearance after facial fat grafting with autologous fat tissue that has either been washed with sterile saline before injecting, or left unwashed. This will be testing two variations of a standard of care surgical procedure, in two cohorts of subjects. One group will receive washed fat, and one group will receive unwashed fat, to both sides of the face. There are no experimental devices, drugs, or biological agents being used in this study. All fat tissue is autologous from the subjects treated. Significance: This study will provide evidence that may directly impact clinical practice for a common procedure in plastic surgery. Regardless of whether the null hypotheses is accepted or rejected, the data will be of direct clinical use and impact practice in the operating room.
The purpose of this study is to determine whether weekly dosing of oral vitamin D3 is effective in correcting low vitamin D levels in children and adolescents with inflammatory bowel disease (also known as Crohn's disease and ulcerative colitis).
Observational comparison study of three commercially available regional oxygen saturation devices on a wide range of skin colors.
The primary objective is to determine the effects of Aldara on the cosmetic outcome of laser treatment of vascular malformations.
This study is to analyze the effects of a 5-step skin care regimen on various skin parameters such as pigmentation, and firmness and elasticity of the skin around the eyes. The 5 facial products in the regimen are a cleansing balm, a toner, a serum, a moisturizer. and an eye cream.
The goal of this clinical trial is to investigate the effect of the BTL-785F device (with BTL-785-4-4 tip on BTL-785-4 applicator) on the improvement of skin quality and texture on the face and neck in healthy adult volunteers. The main question it aims to answer is: Whether the BTL-785F device (with BTL-785-4-4 tip on BTL-785-4 applicator) is able to improve skin quality 3 months post-treatment, as assessed by two-dimensional and three-dimensional photographs. Participants will complete three treatments, and two follow-up visits.
Pulse oximetry, or SpO2, is a vital sign used across healthcare systems to gauge how much oxygen blood is carrying as a percentage of the maximum it could carry. Recent research has suggested that current SpO2 monitors may inaccurately report high SpO2 in patients with darker skin tones when the actual oxygenation is at unsafe, low levels. Additionally, this new research suggests as the SpO2 levels decrease, the risk of occult hypoxia rises. The investigators hypothesize melanin interferes with the pulse oximetry accuracy. Investigators will use spectrophotometry to measure melanin indices and other variables to test this hypothesis.
Investigate the effects of almond consumption on collagen production, elastin levels, wrinkles, and pigmentation among premenopausal women and postmenopausal women belonging to all Fitzpatrick skin types.
The primary objective of this pilot study is exploratory investigation evaluating the Potenza microneedle fractional radiofrequency (RF) device and may be used in combination with the Icon intense pulsed light (IPL) device.
Evaluation of safety and efficacy of Broadband light treatment
Evaluation of Broadband Light Treatment Protocols for Pigmented Skin Lesions - A comparative study
This is a single-site, non-randomized, non-controlled study at UT Southwestern Medical Center at Dallas in the Department of Plastic Surgery designed to follow up to 30 qualified and consenting subjects receiving a fractionated 1927 combination treatments for diffuse hyperpigmentation and/or melasma. Patients will receive treatment using f1927 devices and will be treated twice over the affected areas, once each month for a total of two months, followed by two follow-up visits at 1-month and 3-months post-treatment.
A Phase I Study of KB301, a Replication-Incompetent, Non-Integrating Vector Expressing Human Type III Collagen (COL3) for the Treatment of Superficial Skin Depressions
The purpose of this study is to evaluate the Dermal Cooling System for lightening of benign pigmented lesions and to assess additional cosmetic benefits.