Objective:To construct and validate a predictive model for the risk of excessive blood loss in pa-tients with ruptured tubal pregnancy,and to provide a basis and tool for the assessment of changes in the condi-tion of patients with ruptured tubal pregnancy.Methods:Clinical data of inpatients with ruptured tubal pregnancy from January 2014 to July 2021 were retrospectively analyzed,who underwent surgical treatment in the Depart-ment of Gynecology,Dongguan Maternal and Child Health Hospital.The pelvic blood volume was categorized into excessive blood loss and non-excessive blood loss groups based on whether the amount of pelvic blood was found to be≥750 ml intraoperatively.Factors influencing the occurrence of excessive blood loss were screened and modeled by univariate analysis,Lasso regression,and multi-factor Logistic stepwise regression.The area un-der the subject working characteristic curve(AUC)was used to evaluate the discrimination of the predictive mod-el,the model's consistency was evaluated by calibration curve and goodness-of-fit test,and the clinical utility of the model was evaluated and validated by the decision analysis curve.Finally,column line plots were drawn.Results:①A total of 386 patients with ruptured tubal pregnancy were included,of whom 124(32.12%)had blood loss≥750 ml.②The optimal predictors for predicting concomitant blood loss in patients with ruptured tubal preg-nancy were screened,including:days of abdominal pain,dizziness,pallor,fatigue,the maximum diameter of para-metrial mass,human chorionic gonadotropin(β-hCG),and hemoglobin(Hb)and the model and the column line graphswere constructed accordingly.③The prediction model AUC was 0.827(95%CI 0.781-0.873);the cut-off value was 0.391,at which point the specificity and sensitivity were 68.55%and 84.35%,respectively,and the AUC validated within the model by resampling was 0.804.Clinical decision curves showed that the threshold probability intervals for the maximum net benefit values ranged from 8.5%-97%,respectively.Conclusions:The constructed prediction model was validated to suggest good discriminatory efficacy and degree of consistency.As a tool,it has clinical application value in predicting the risk of hemorrhage in patients with ruptured tubal pregnan-cy.It can help to determine the occurrence of adverse events such as hemorrhagic shock at an early stage and improve the success rate of rescue treatment.

Objective:To summarize and evaluate the relevant evidence of exercise intervention for adult hemophiliacs patients at home and abroad, and to provide a reference basis for healthcare professionals to individualize exercise programs for adult hemophiliacs.Methods:A computer-based "6s" evidence resource pyramid model was used to systematically search for guidelines, evidence summaries, expert consensuses, systematic reviews and random controlled trials on exercise of adult hemophiliacsin databases such as China Biology Medicine disc, Wanfang Med Online, UpToDate, BMJ Best Practice, PubMed, etc, from the time of creation to January 31, 2023. Quality assessment, evidence extraction and evidence integration of relevant literature was performed by two researchers, with a third researcher adjudicating in case of conflicting opinions. An expert panel meeting was conducted to rate the level of evidence extracted.Results:A total of 15 literatures were included. Among them, 4 guidelines, 2 expert consensuses, 2 systematic reviews, and 7 randomized controlled trials. A total of 28 pieces of best evidence were developed, encompassing 6 aspects of exercise assessment, exercise modality, exercise duration, exercise intensity, precautions, and benefits of exercise.Conclusions:Before exercising, hemophiliacs should be assessed by a multidisciplinary team and an appropriate exercise program should be developed to maintain normal body functions and improve the quality of life of hemophiliacs.