The Predictive Value of Sidestream Dark Field Imaging in Diabetic Nephropathy

NCT ID: NCT04403945

Last Updated: 2021-07-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

143 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-06-01

Study Completion Date

2021-03-01

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Diabetic microangiopathy refers to the pathological changes of arterioles, capillaries and venules in diabetic patients. Due to the impacts including glycol-metabolism disorder, disturbance of lipid metabolism, cytokine, oxidative stress and hemodynamic changes, the structure and function of microvessels are damaged accordingly. Diabetic nephropathy (DN) is one of the most common and serious chronic microvascular complications of diabetes, and becomes a leading cause of end-stage renal failure(ESRF). Presently, urinary albumin/creatinine ratio (UACR) is a widely accepted and relatively reliable indicator for early diagnosis of DN, however, there are 2/3 DN patients with normal albuminuria have decreased glomerular filtration rate (glomerular filtration rate, GFR) and abnormal structure of the kidney, one the other hand, the presence of albuminuria is associated with other vascular dysfunction and kidney disease other than DN, therefore its accuracy is increasingly being challenged.

Sidestream dark field(SDF) imagining technology, as an emerging way to visualize blood vessels, is evaluated in a semi-quantitative manner and provides an effective means to study structure and function of microcirculation. Different from biochemical markers like albuminuria, SDF provides a visual information about vessel structure, density, and quality of diffusion. At present the research of sublingual microcirculation by SDF technique is mainly applied to microcirculation monitoring in patients in the intensive care unit or laboratory animal models with acute hemorrhagic shock to assess the potential of being a tool of diagnosis and treatment prognostic indicator, no relevant research has been carried out to evaluate the predictive value of diabetic microangiopathy in literature so far.

Herein, the investigators designed the study based on SDF imaging to collect scientific data, thus providing strong support for the early assessment and diagnosis of diabetic nephropathy and possibly guiding individual therapy in the future.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Microcirculation Detection in Diabetic Patients

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Group 1

healthy volunteers with normal fasting blood glucose and HbA1c, without hypertension, kidney diseases, or taking drugs that affects microcirculation

Sidestream dark field(SDF) imagining

Intervention Type DEVICE

SDF imaging consists of a hand-held device that illuminates a region by surrounding a central light guide with concentrically placed light emitting diodes,which thus provide SDF illumination.

Group 2

type 2 diabetic patients without microvascular complications like Diabetic nephropathy, diabetic retinopathy, diabetic foot or diabetic peripheral neuropathy

Sidestream dark field(SDF) imagining

Intervention Type DEVICE

SDF imaging consists of a hand-held device that illuminates a region by surrounding a central light guide with concentrically placed light emitting diodes,which thus provide SDF illumination.

Group 3

type 2 diabetic patients with diabetic nephropathy diagnosed by clinic or pathology.

Sidestream dark field(SDF) imagining

Intervention Type DEVICE

SDF imaging consists of a hand-held device that illuminates a region by surrounding a central light guide with concentrically placed light emitting diodes,which thus provide SDF illumination.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Sidestream dark field(SDF) imagining

SDF imaging consists of a hand-held device that illuminates a region by surrounding a central light guide with concentrically placed light emitting diodes,which thus provide SDF illumination.

Intervention Type DEVICE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* age ranges from 18 to 70 years old
* signed informed consent

Exclusion Criteria

* Younger than 18 years old or older than 70 years old
* Shock patients who have low blood pressure under 90/60mmHg
* Patients with mental abnormality who are uncooperative with this study
* Having difficulty in mouth opening
* Patients with Ketoacidosis
* Oral mucosal inflammation or injury, which could locally influence the sublingual microvasculature
* Pregnant or lactating women
* Refuse to sign informed consent
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Third Military Medical University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Zhiming Zhu

Director of the department of Hypertension & Endocrinology, Daping Hospital

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

The third hospital affiliated to the Third Military Medical University

Chongqing, Chongqing Municipality, China

Site Status

Countries

Review the countries where the study has at least one active or historical site.

China

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

PVSDFI-DN

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.