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Abstract Objective: Ovarian torsion (OT) represents a severe gynecological emergency in female pediatric patients, necessitating immediate surgical intervention to prevent ovarian ischemia and preserve fertility. Prompt diagnosis is, therefore, paramount. This retrospective study set out to assess the utility of combined clinical, ultrasound, and laboratory features in diagnosing OT. Methods: The authors included 326 female pediatric patients aged under 14 years who underwent surgical confirmation of OT over a five-year period. Logistic regression analysis was employed to pinpoint factors linked with OT, and the authors compared clinical presentation, laboratory results, and ultrasound characteristics between patients with OT (OT group) and without OT (N-OT group). The authors conducted receiver operating characteristic (ROC) curve analysis to gauge the predictive capacity of the combined features. Results: Among 326, OTwas confirmed in 24.23 % (79 cases) of the patients. The OT group had a higher incidence of prenatal ovarian masses than the N-OT (22 cases versus 7 cases) (p < 0.0001). Similarly, the authors observed significant differences in the presence of lower abdominal pain, suspected torsion on transabdominal ultrasound, and a high neutrophil-lymphocyte ratio (NLR > 3) between the OTand non-OT groups (p < 0.05). Furthermore, when these parameters were combined, the resulting area under the curve (AUC) was 0.868, demonstrating their potential utility in OT diagnosis. Conclusion: This study demonstrates a prediction model integrating clinical, laboratory, and ultrasound findings that can support the preoperative diagnosis of ovarian torsion, thereby enhancing diagnostic precision and improving patient management. Future prospective studies should concentrate on developing clinical predictive models for OTin pediatric patients.
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Cell-free DNA (cfDNA) is the DNA fragment existing in human extracellular fluid. In specific physiological process (such as pregnancy) or pathological conditions (such as human malignancies), the contents of cfDNA in extracellular fluid will abnormally change. The contents and molecular characteristics of cfDNA make it have the potential as a kind of biomarker for diseases′ diagnosis. With the development of cfDNA detection technology such as sequencing and mass spectrometry, liquid biopsy based on cfDNA detection has been widely used in clinical tumor diagnosis, tumor treatment, prenatal examination, and research in autoimmune diseases. A systematic summary of the latest research progress in the development of cfDNA detection technology and the clinical application of liquid biopsy, as well as the research progress of cfDNA in the diagnosis and treatment of related diseases is summarized in this review.
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Objective To investigate the distribution characteristics and drug resistance of pathogens isolated from pregnant woman′s urine samples.Methods The urine samples of pregnant women who underwent prenatal examination were collected and cultured.VITEK2 automatic bacterial analyzer was used to identify the bacteria strains,and Escherichia coli ,Streptococcus agalac-tiae were tested for their drug susceptibility.Results The positive rates of urine culture were 4.4%和 3.8% respectively in 2011 and 2012.The top 5 most isolated strains were Escherichia coli ,S .agalactiae ,Enterococcus faecalis ,K .pneumoniae and Propeus vulgaris .In 2011 and 2012,the resistance rates of Escherichia coli to ampicillin and piperacillin was more than 50%,ESBLs-produ-cing rate in Escherichia coli had decreased in 2012 than 2011,the resistance rates of S.agalactiae to erythromycin and clindamycin were more than 30%.Conclusion Escherichia coli accounted for the largest proportion in the strains isolated from urine samples of pregnant women,The pathogen of urinary tract infection in pregnant women are still mainly Gram-negative bacteria(Escherichia co-li),the main pathogens common antibiotics are varying degrees of resistance,pathogens all display common drug resistance of var-ying degrees.