Clinical Research Directory

Periodontal Pathogens and Inflammatory Biomarkers in Missed Abortion

This observational case-control study will investigate whether periodontal infection and inflammation are associated with missed abortion in pregnancies without detected major fetal chromosomal abnormalities. A total of 160 pregnant women aged 18 to 40 years and at 20 weeks of gestation or earlier are planned to be enrolled. The study will include 80 women diagnosed with missed abortion and 80 women with an ongoing uncomplicated pregnancy matched according to age and gestational week. Participants will undergo a clinical periodontal examination, and unstimulated saliva samples will be collected. Saliva will be analyzed for selected periodontal bacteria, including Porphyromonas gingivalis, Fusobacterium nucleatum, and Tannerella forsythia, as well as inflammatory biomarkers. Serum obtained from blood samples already collected as part of routine obstetric care will be used to measure inflammatory biomarkers, including IL-1β, IL-6, TNF-α, CRP, MMP-8, and prostaglandin E2. No additional blood sample will be collected solely for this study. Routine complete blood count results will also be used to calculate systemic inflammatory indices. For participants with missed abortion, study samples and periodontal assessments will be obtained after the diagnosis has been confirmed and before uterine evacuation or medical treatment. Routine fetal genetic test results will be reviewed, and cases with detected chromosomal abnormalities included in the clinical genetic assessment will be excluded from the main analysis. The study aims to determine whether periodontal pathogen burden, periodontal disease, and local and systemic inflammatory responses differ between women with missed abortion and women with ongoing uncomplicated pregnancies.

Effects of Mandala Coloring in Missed Abortion

This randomized controlled study aims to evaluate the effects of mandala coloring activity on stress, anxiety, pain, and physiological parameters in women diagnosed with missed abortion. Participants will be randomly assigned to either a mandala coloring group or a control group receiving standard care. Outcomes will be measured at hospital admission and after completion of the mandala coloring session.

A Real-World Study Comparing the Efficacy of Different Treatment Regimens for Early Missed Abortion

At present, there is no unified standard for the treatment of missed abortion in clinical practice. This study intends to collect clinical data of this type of disease to compare the efficacy of different treatments, and on this basis, presuppose the synergistic effect of different doses of estrogen in the process of drug induction, conduct statistical analysis of the efficacy, evaluate whether the treatment plan can achieve the therapeutic effect while reducing the occurrence of complications, and provide an effective basis for the subsequent clinical treatment of missed abortion. This study is divided into two parts. The first part is a retrospective analysis to explore the differences between missed abortion surgery and drug treatment, clinical efficacy and reproductive outcomes; the second part is a prospective study to explore the effects of different doses of estrogen combined with surgery or drug abortion on the efficacy of missed abortion in early pregnancy, and explore the best clinical treatment method for missed abortion.

Oxytocin Effectiveness in First Trimester Dilatation and Curettage

The aim of this study is to investigate the impact of oxytocin on perioperative blood loss during the D\&C procedure, as well as to assess early and late complications associated with it's use.

The Accuracy of Ultrasound Diagnosis of Hydatidiform Moles

This is a prospective observational study assessing which ultrasound findings are best at excluding a molar pregnancy in first trimester miscarriage.