Clinical Research Directory

A Prospective Study on IVUS and DSA Guidance in the Treatment of Budd-Chiari Syndrome

This study aims to evaluate the effectiveness of interventional treatment guided by Intravascular Ultrasound (IVUS) compared to Digital Subtraction Angiography (DSA) in patients with Budd-Chiari Syndrome (BCS). Using a prospective, randomized controlled trial design, patients who meet the diagnostic criteria for BCS and are suitable for interventional treatment are randomly divided into the IVUS group and the DSA group. The IVUS group will undergo detailed assessment of vascular structure before interventional treatment to select the appropriate balloon for dilation, whereas the control group will make decisions based on DSA results. The primary endpoint of the study is the postoperative restenosis rate, while secondary endpoints include complications of interventional treatment, liver function, and patient survival rate. Successful implementation of this study will provide new technical means to optimize interventional treatment strategies for BCS, and help improve treatment outcomes and long-term prognosis for patients.

Clinical Diagnosis and Pathological Spectrum of Porto-sinusoidal Vascular Disease in India

There is a need to re-evaluate the patients classified as NCPH and determine whether the new histological classification proposed by the VALDIG applies to the Indian scenario. We intend to identify the patient cohorts who have been diagnosed as NCPH, NCPF, EHPVO, hepatic venous outlet tract obstruction (HVOTO), Veno-occlusive disease (VOD) and sinusoidal obstruction syndrome (SOS) based on their liver biopsy, endoscopy, HVPG, and radiology reports. These patients will be screened to find the patients who fit the diagnosis of PSVD. It is important to establish whether the new definition of PSVD is relevant to the Indian population and establish the usefulness of invasive tests like liver biopsy in diagnosing the disease. The patient cohorts meeting diagnosis of INCPH will be compared with those meeting the new diagnosis of PSVD. The investigators will describe the clinical (demographic, clinical risk factors, socioeconomic status), etiological (associated conditions, coagulation disorders medication use, genetic risk factors), imaging (based on ultrasound Doppler imaging or cross- sectional imaging), endoscopic, fibrosis tests (using non-invasive tests), and the histopathology of the patients who fulfil the criteria of PSVD.