Clinical Research Directory

Study on Clinicopathological Features, Influencing Factors and Clinical Outcomes in Patients With PSVD

This retrospective-prospective cohort study investigates portal sinusoidal vascular disorder (PSVD), a liver vascular disease definitively diagnosed via liver biopsy. Addressing PSVD's poorly defined natural history, unclear prognostic determinants and the scarcity of large-scale systematic research in China, the study enrolls histopathologically confirmed patients, collects baseline clinicopathological, laboratory and imaging data, tracks endpoints including transplant-free survival, liver-related events and portal vein thrombosis changes, and conducts prognostic analyses using Cox regression, Kaplan-Meier method and Fine-Gray model, aiming to characterize disease features, identify key prognostic factors, verify high-risk subgroups with inferior outcomes, and support precise clinical management while filling relevant domestic research gaps.

Non-invasive Tools for PSVD Diagnosis

Patients treated with platinum-based chemotherapy drugs have the probability of developing PSVD. The diagnosis of PSVD depends on liver biopsy. In addition, the level of portal vein pressure has guiding value in the diagnosis and prognosis of PSVD. Many studies have shown that liver and spleen stiffness have high accuracy in diagnosis and prognosis. The purpose of this study is to evaluate the efficacy of the combination of liver and spleen stiffness in the diagnosis of PSVD and to search for effective biomarkers for the diagnosis of PSVD through a single-center, prospective, observational study.

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.