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HEMOVAR Study on Hemorrhoids and Varicose Veins

Prospective Evaluation of the Association Between Hemorrhoids and Lower Extremity Varicose Veins Using Doppler Ultrasound (HEMOVAR Study)

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07317492
Acronym
HEMOVAR
Enrollment
400
Registered
2026-01-05
Start date
2025-12-19
Completion date
2026-12-31
Last updated
2026-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hemorrhoids, Varicose Veins of Lower Limb

Keywords

Hemorrhoids, Varicose Veins, Venous Insufficiency, Doppler Ultrasound, Venous Reflux, Proctology, Pelvic Congestion Syndrome, Prospective Observational Study, Varicocele, HEMOVAR Study

Brief summary

The HEMOVAR Study is a prospective observational study designed to evaluate the association between hemorrhoidal disease and lower extremity varicose veins. A total of 400 adult patients presenting to the general surgery proctology outpatient clinic of Aydın Adnan Menderes University Hospital will be included. The study will consist of two groups: 200 patients diagnosed with hemorrhoids and 200 patients with other non-hemorrhoidal benign proctologic conditions serving as controls. All participants will undergo routine clinical evaluation and demographic data collection. Cardiovascular surgeons will voluntarily perform physical examination and Doppler ultrasonography of the lower extremities to assess venous insufficiency and varicose veins. No experimental intervention or treatment will be applied. The study will not require any consumable materials and will not impose any additional financial burden on the hospital, patients, or the national health insurance system. The primary outcome is the prevalence of lower extremity venous insufficiency in patients with hemorrhoids compared with controls.

Detailed description

The HEMOVAR Study is a single-center, prospective, cross-sectional observational investigation conducted at Aydın Adnan Menderes University Hospital. The study aims to examine the association between hemorrhoidal disease and lower extremity venous insufficiency using standardized clinical assessment and Doppler ultrasonography. Adult patients presenting to the general surgery proctology outpatient clinic will be screened for eligibility and enrolled after providing written informed consent. Two parallel groups will be formed: patients with clinically diagnosed hemorrhoids and a control group consisting of patients with other benign non-hemorrhoidal proctologic conditions. Cardiovascular surgeons will voluntarily perform clinical examination and color Doppler ultrasonography of the lower limb venous system in all participants. Doppler parameters including the presence of venous reflux, affected venous segments, reflux duration, venous diameter, and CEAP clinical classification will be recorded. Laboratory evaluation will be limited to hemoglobin measurement. Secondary analyses will explore the coexistence of other venous disorders such as varicocele and pelvic congestion syndrome. This study involves no experimental intervention, randomization, or invasive procedures. No consumables will be used, and there will be no additional financial burden on the hospital, patients, or the national health insurance system. The study will commence following approval by the local ethics committee, and data will be collected and analyzed in accordance with the Declaration of Helsinki and Good Clinical Practice principles.

Interventions

None listed

Sponsors

Aydin Adnan Menderes University
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adults aged 18 years or older * Patients presenting to the general surgery proctology outpatient clinic of Aydın Adnan Menderes University Hospital * Patients diagnosed with hemorrhoidal disease or other non-hemorrhoidal benign proctologic conditions * Ability to understand the study procedures and provide written informed consent

Exclusion criteria

* Patients younger than 18 years * History of lower extremity varicose vein surgery, endovenous ablation, or sclerotherapy * Presence of systemic venous disorders such as portal hypertension or liver cirrhosis * Pregnant women * Patients with known malignancy or severe comorbid conditions that could interfere with evaluation * Refusal or inability to provide written informed consent

Design outcomes

Primary

MeasureTime frameDescription
Correlation between Hemorrhoidal Disease and Lower Extremity Venous InsufficiencyBaseline (single visit)The correlation between the presence of hemorrhoidal disease (yes/no) and lower extremity venous insufficiency will be assessed using color Doppler ultrasonography. Venous insufficiency will be defined as the presence of venous reflux lasting ≥0.5 seconds in superficial veins or ≥1.0 second in deep veins. The outcome will be expressed as the percentage of patients with Doppler-confirmed venous insufficiency in each study group.

Secondary

MeasureTime frameDescription
Correlation between Hemorrhoid Grade and Severity of Venous InsufficiencyBaseline (single visit)The correlation between hemorrhoid grade (Grade I-IV, assessed by clinical examination) and the severity of lower extremity venous insufficiency will be evaluated. Venous severity will be assessed using the CEAP clinical classification determined by Doppler ultrasonography. The outcome will be analyzed using correlation coefficients between hemorrhoid grade and CEAP class.

Countries

Turkey (Türkiye)

Contacts

CONTACTAkay Edizsoy, MD
akayedizsoy@adu.edu.tr+905066332767
STUDY_CHAIRAkay Edizsoy, Assist Prof.

Aydin Adnan Menderes University, School of Medicine

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 30, 2026