1.Construction of a predictive model for hospital-acquired pneumonia risk in patients with mild traumatic brain injury based on LASSO-Logistic regression analysis.
Xin ZHANG ; Wenming LIU ; Minghai WANG ; Liulan QIAN ; Jipeng MO ; Hui QIN
Chinese Critical Care Medicine 2025;37(4):374-380
OBJECTIVE:
To identify early potential risk factors for hospital-acquired pneumonia (HAP) in patients with mild traumatic brain injury (mTBI), construct a risk prediction model, and evaluate its predictive efficacy.
METHODS:
A case-control study was conducted using clinical data from mTBI patients admitted to the neurosurgery department of Changzhou Second People's Hospital from September 2021 to September 2023. The patients were divided into two groups based on whether they developed HAP. Clinical data within 48 hours of admission were statistically analyzed to identify factors influencing HAP occurrence through univariate analysis. Least absolute shrinkage and selection operator (LASSO) regression analysis was employed for feature selection to identify the most influential variables. The dataset was divided into training and validation sets in a 7:3 ratio. A multivariate Logistic regression analysis was then performed using the training set to construct the prediction model, exploring the risk factors for HAP in mTBI patients and conducting internal validation in the validation set. Receiver operator characteristic curve (ROC curve), decision curve analysis (DCA), and calibration curve were utilized to assess the sensitivity, specificity, decision value, and predictive accuracy of the prediction model.
RESULTS:
A total of 677 mTBI patients were included, with 257 in the HAP group and 420 in the non-HAP group. The significant differences were found between the two groups in terms of age, maximum body temperature (MaxT), maximum heart rate (MaxHR), maximum systolic blood pressure (MaxSBP), minimum systolic blood pressure (MinSBP), maximum respiratory rate (MaxRR), cause of injury, and laboratory indicators [C-reactive protein (CRP), procalcitonin (PCT), neutrophil count (NEUT), erythrocyte sedimentation rate (ESR), fibrinogen (FBG), fibrinogen equivalent units (FEU), prothrombin time (PT), activated partial thromboplastin time (APTT), total cholesterol (TC), lactate dehydrogenase (LDH), prealbumin (PAB), albumin (Alb), blood urea nitrogen (BUN), serum creatinine (SCr), hematocrit (HCT), hemoglobin (Hb), platelet count (PLT), glucose (Glu), K+, Na+], suggesting they could be potential risk factors for HAP in mTBI patients. After LASSO regression analysis, the key risk factors were enrolled in the multivariate Logistic regression analysis. The results revealed that the cause of injury being a traffic accident [odds ratio (OR) = 2.199, 95% confidence interval (95%CI) was 1.124-4.398, P = 0.023], NEUT (OR = 1.330, 95%CI was 1.214-1.469, P < 0.001), ESR (OR = 1.053, 95%CI was 1.019-1.090, P = 0.003), FBG (OR = 0.272, 95%CI was 0.158-0.445, P < 0.001), PT (OR = 0.253, 95%CI was 0.144-0.422, P < 0.001), APTT (OR = 0.689, 95%CI was 0.578-0.811, P < 0.001), Alb (OR = 0.734, 95%CI was 0.654-0.815, P < 0.001), BUN (OR = 0.720, 95%CI was 0.547-0.934, P = 0.016), and Na+ (OR = 0.756, 95%CI was 0.670-0.843, P < 0.001) could serve as main risk factors for constructing the prediction model. Calibration curves demonstrated good calibration of the prediction model in both training and validation sets with no evident over fitting. ROC curve analysis showed that the area under the ROC curve (AUC) of the prediction model in the training set was 0.943 (95%CI was 0.921-0.965, P < 0.001), with a sensitivity of 83.6% and a specificity of 91.5%. In the validation set, the AUC was 0.917 (95%CI was 0.878-0.957, P < 0.001), with a sensitivity of 90.1% and a specificity of 85.0%. DCA indicated that the prediction model had a high net benefit, suggesting practical clinical applicability.
CONCLUSIONS
The cause of injury being a traffic accident, NEUT, ESR, FBG, PT, APTT, Alb, BUN, and Na+ are identified as major risk factors influencing the occurrence of HAP in mTBI patients. The prediction model constructed using these parameters effectively assesses the likelihood of HAP in mTBI patients.
Humans
;
Risk Factors
;
Case-Control Studies
;
Logistic Models
;
Healthcare-Associated Pneumonia/epidemiology*
;
Brain Injuries, Traumatic/complications*
;
Male
;
Female
;
ROC Curve
;
Pneumonia/etiology*
;
Middle Aged
;
Adult
2.Efficacy of liraglutide in the treatment of nonalcoholic fatty liver disease:a Meta analysis
Hong LI ; Shiyun PU ; Qinhui LIU ; Xin HUANG ; Jiangying KUANG ; Lei CHEN ; Jing SHEN ; Shihai CHENG ; Tong WU ; Yanping LI ; Li MO ; Wei JIANG ; Jinhan HE
Chongqing Medicine 2017;46(15):2098-2101
Objective To evaluate the efficacy of liraglutide in the treatment of Nonalcoholic Fatty Liver Disease(NAFLD).Methods Randomized controlled trials(RCTs)that evaluated the efficacy of liraglutide for NAFLD treatment were searched in multiple databases,including Pubmed,EMBASE,the Cochrane library,CNKI,Wanfang database and VIP.Literature identification and data extraction were based on the inclusion and exclusion criteria.RevMan 5.3 software was used for Meta-analysis.Results A total of 7 RCTs with 500 patients of NAFLD were included.Improved liver histology,or improved the level of alanine aminotransferase[WMD=-25.32,95%CI(-37.22,-13.41),P<0.01] and aspartate aminotransferase[WMD=-24.56,95%CI(-35.10,-14.03),P<0.01] were seen in 12-48 weeks liraglutide treatment.However,liraglutide could not decreased the level of serum cholesterol[WMD=-14.38,95%CI(-48.95,-20.20),P=0.42] and triglyceride[WMD=-15.55,95%CI(-36.20,-5.10),P=0.14].Conclusion liraglutide has the therapeutic effect of NAFLD.
3.Clinical Assessment of 20G and 23G Vitrectomy for Treatment of Posterior Segment Intraocular Foreign Bodies
Qinhui JIN ; Zhenyang XIANG ; Enhui LI ; Qinzhu HUANG ; Xin ZHANG ; Haihua ZHENG
Journal of Sun Yat-sen University(Medical Sciences) 2017;38(4):576-581,封3
[Objective] To analyze the clinical curative effect of 20G and 23G vitrectomy for posterior segment intraocular foreign bodies,to explore the differences of their efficacy and safety.[Methods] This was a retrospective case study.Select 71 patients (71 eyes) who suffered from posterior segment intraocular foreign bodies and underwent different ways of vitrectomy,according to the way of vitrectomy,the patients were enrolled into 20G vitrectomy group (20G group,37 patients,37 eyes) and 23G vitrectomy group (23G group,34 patients,34 eyes).All patients were given wound suture,and patients complicated traumatic cataract should underwent cataract surgery;then were given 20G/23G vitrectomy and extraction of intraction foreign bodies,and (or) be given retinal laser photocoagulation,cryocoagulation,and endotamponade during the procedure.Extraction of intraction foreign bodies and the location of retinal,surgical time,postoperative inflammation and stimulus syndrome,length of hospital stay,the best corrected acuity (BCVA) and other complications after surgery were registered.Minimum follow-up was 6 months.[Results] The rate of extraction of intraction foreign bodies and early retinal reattachment rate were 100% of the two groups.Comparing the complications after surgery between the two groups,the differences had no statistical significance (all P > 0.05) except the incidence of postoperative ocular hypotenison.The significant difference was found in the comparison of surgical time,average hospitalizcd days,postoperative inflammation score and stimulus syndrome between the two groups,and there were significant differences when the vision distribution before and after surgery in two groups were self-compared (P < 0.05).At lastest follow up,the differences had no statistical significance when comparing the cases of unplanned surgical reoperation,the location of retinal and the vision distribution between the two groups (P > 0.05).[Conclusion] 20G and 23G vitrectomy are both safely and effectively performed in patients with posterior segment intraocular foreign bodies,the efficacy and safety of them are comparable.There is higher incidence of postoperative ocular hypotension in 23G group,and it has an ascendant than 20G group in shorter surgical time and length of hospital stay,lighter postoperative inflamnation and stimulus syndrome.
4.Application of ultrasound biomicroscopy in open-globe injury
Chaojun, WANG ; Lingjie, ZHANG ; Qinhui, XIN
Chinese Ophthalmic Research 2010;28(3):278-280
Background Open-globe injury of zone Ⅱ is a severe eyeball wound in the sclera area near 5mm from the corneal limbus.To accurately evaluate the local tissue structure after the wounding is very important for lessening the complications of eye injury.Ultrasound biomicroscope (UBM) has been proven useful in examining eyeball wall and vitreous at the wound in order to offer the useful information about whether secondary operation is needed for the injured eyes and when is the optimal timing for surgery.Objective The present study is to explore the clinical application of UBM in open-globe injury of zone Ⅱ. Methods This is an observational study of clinical cases.UBM examination was performed on 38 eyes of 38 cases received emergency repair surgery of open-scleral injury.The restore status of sclera,ciliary body and vitreous of injuried zone (zone Ⅱ) were evaluated under the UBM in 3-5 days after the operation.The comprehensive results of UBM,B-scan and ophthalmoscope examinations were analyzed to determine the further treatment.The oral informed consent was obtained from each subject before this trial.Results Vitreous surgery were performed on 15 cases,and all wounds were found by UBM and were proven in the surgery.The other 23 cases were followed up in out-patient department and no obvious complications were found.Conclusion UBM is a valuable and atraumatic examination for open-globe injury of zone Ⅱ.It offers important and appraisal information about ocular injury.

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