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Development and validation of a predictive model for the assessment of potassium-lowering treatment among hyperkalemia patients

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World Journal of Emergency Medicine 2023年第3期14卷 198-203页

作者： Cong-ying Song Jian-yong Zhu Wei Huang Yuan-qiang Lu Department of Emergency Medicine the First Affi liated HospitalSchool of MedicineZhejiang UniversityHangzhou 310003China Key Laboratory for Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases of Zhejiang Province Hangzhou 310003China

BACKGROUND:Hyperkalemia is common among patients in emergency department and is associated with mortality.While,there is a lack of good evaluation and prediction methods for the effi cacy of potassium-lowering treatment,making the drug dosage adjustment quite diffi cult.We aimed to develop a predictive model to provide early forecasting of treating eff ects for hyperkalemia patients.METHODS:Around 80%of hyperkalemia patients(n=818)were randomly selected as the training dataset and the remaining 20%(n=196)as the validating dataset.According to the serum potassium(K+)levels after the fi rst round of potassium-lowering treatment,patients were classifi ed into the eff ective and ineff ective groups.Multivariate logistic regression analyses were performed to develop a prediction model.The receiver operating characteristic(ROC)curve and calibration curve analysis were used for model validation.RESULTS:In the training dataset,429 patients had favorable eff ects after treatment(eff ective group),and 389 had poor therapeutic outcomes(ineff ective group).Patients in the ineff ective group had a higher percentage of renal disease(P=0.007),peripheral edema(Ptherapeutic outcomes for hyperkalemia patients after drug treatment,which could help clinicians to identify hyperkalemia patients with high risk and adjust the dosage of medication for potassium-lowering.

关键词： Hyperkalemia Predictive model Potassium-lowering treatment therapeutic outcome

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Partial virological response to three different nucleotide analogues in naive patients with chronic hepatitis B

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Hepatobiliary & Pancreatic Diseases International 2014年第6期13卷 602-611页

作者： Ender G Yegin Osman Cavit Ozdogan Department of Gastroenterology Marmara University Faculty of Medicine

BACKGROUND： The definition of partial virological response （PVR） was proposed because of its clinical relevance. PVR relates to subsequent therapeutic failure which results in the modification of the regimen. Whether this rationale can be applied to all nucleotide analogues （NA） is not clear. This study was undertaken to analyze PVR influence on therapeutic outcomes during lamivudine, entecavir or tenofovir mono- therapy in NA-naive patients with chronic hepatitis B in routine clinical practice. METHODS： We retrospectively analyzed 150 NA-naive patients with chronic hepatitis B. These subjects received lamivudine, entecavir or tenofovir monotherapy between February 2001 and July2013. RESULTS： Sixty-nine patients were treated with lamivudine, 35 with entecavir, and 46 with tenofovir. The median therapeutic duration was 19.5 （6-147） months. PVR rates at 24 weeks were similar among three NAs （lamivudine 33.3%, entecavir 35.0%, tenofovir 32.4%, P--0.981）. For all three NAs, patients with a higher baseline viral load or HBeAg-positive status had a higher serum viral positive rate tested by polymerase chain reaction at week 24 and 48. Cumulative probability of virological breakthrough （VBR） for patients treated with lamivudine was 67% at 5 years, and PVR at 24 weeks was the independent risk factor for VBR （HR： 3.09; 95% CI： 1.09-8.74; P=0.034）; also lamivudine treated patients older than 50 years seemed to have a tendency for VBR （HR： 2.80; 95% CI： 0.99-8.18; P=0.052）. A majority of entecavir and tenofovir partial responders achieved and maintained virological response with prolonged monotherapy, except one entecavir treated patient who experienced VBR due to resistance mutations.CONCLUSIONS： Management strategy for lamivudine treatment should include adaptation of regimen according to PVR as an on-treatment response parameter due to its relation with unacceptably high VBR probability. Similar conclusion should not be directly related to entecavir or tenofovir treatment.

关键词： partial virological response lamivudine entecavir tenofovir therapeutic outcome

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