1.Emphysematous pyelonephritis: one case report and analysis of 89 cases from published literature
Lei HU ; Jianfu ZHOU ; Zhichao WANG ; Haoqiang CHEN ; Xuehua LIU ; Songtao XIANG
Journal of Modern Urology 2025;30(6):497-503
Objective: To explore the clinical features, treatment and prognosis of emphysematous pyelonephritis (EPN), so as to enhance the clinical awareness of this disease. Methods: A retrospective analysis was conducted on the clinical data of one EPN patient at The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, and a literature review was performed on articles published in the China National Knowledge Infrastructure and PubMed databases from Jan.1, 2015 to Dec.31, 2024. Results: The patient, a 62-year-old male with a 5 years' history of type 2 diabetes, was admitted due to left flank pain for 4 days, with a temperature of 39.4 ℃.Laboratory tests indicated significantly elevated inflammatory markers, decreased platelet count, and abnormal coagulation function.Preoperative blood and urine cultures showed positivity for Escherichia coli.Computed tomography (CT) revealed complete erosion of the left kidney, with gas in the left ureter and surrounding effusion, as well as multiple free gas in the abdominal cavity, bilateral ureteral stones, right renal lower calyx stones.After a multidisciplinary consultation, he underwent emergency phase Ⅰ left pyeloplasty and perirenal drainage with ureteral stenting.After discharge, the patient received maintenance hemodialysis once every two days in the outpatient clinic.One week after-discharge, the patient was readmitted due to polypnea.Following symptomatic management, vital signs stabilized.Approximately 2 months after the first-stage surgery, ureteroscopic stone extraction was successfully performed.One month after the stone extraction procedure, a follow-up CT showed normalization of the left kidney, renal pelvis and calyces, leading to phase Ⅱ laparoscopic left nephrectomy via the abdominal approach, with postoperative pathology indicating renal necrosis.Among 89 EPN patients reported in 35 articles, the median age was 58(24-92) years old;there were 59(66.3%) females and 30(33.7%) males;fever was the most common clinical symptom (60.7%);73(82.0%) had diabetes, 12 (13.5%) had urinary tract obstruction;55 (61.8%) were infected with Escherichia coli, and 7 (7.9%) were infected with Klebsiella pneumoniae; 13 died due to ineffective treatmen. Conclusion: EPN presents acutely and progresses rapidly, often leading to misdiagnosis due to the lack of specific early symptoms.Abdominal CT is the preferred imaging modality for rapid diagnosis, and proactive interdisciplinary intervention can improve survival rates, reduce the need for nephrectomy, and enhance prognosis.
2.Feasibility of monitoring the baseline of motor evoked potentials immediately after tracheal intubation with-out muscle relaxants in lumbar spine surgery
Wei ZHENG ; Na LI ; Lei LIU ; Songtao LIU ; Hai ZHOU ; Jie LIU ; Zhengquan HU ; Liwei WANG
The Journal of Practical Medicine 2024;40(16):2298-2304
Objective To investigate the feasibility of monitoring the baseline of motor evoked potentials immediately following tracheal intubation without the administration of muscle relaxants in lumbar spine surgery.Methods A prospective study was conducted at Xuzhou Central Hospital,involving a total of 156 patients who were scheduled for Transforaminal Lumbar Interbody Fusion.These patients were randomly divided into two groups:a control group consisting of 72 cases(33 males and 39 females)and an observation group consisting of 75 cases(37 males and 38 females).The control group underwent monitoring of motor evoked potentials(TceMEP)baseline after spinal exposure during the operation,while the observation group had immediate monitoring of TceMEP baseline after tracheal intubation without muscle relaxants.Hemodynamic changes,intubation satisfaction,and operation time during tracheal intubation were compared between the two patient groups.Additionally,the baseline success rate,stimulation threshold,sensitivity,and specificity of TceMEP were compared between the two groups.Results There were no significant differences in hemodynamic changes and intubation satisfaction between the two patient groups during tracheal intubation(P>0.05).The control group had an intubation time of(6.52±1.22)min,while the observation group had a significantly longer intubation time of(9.44±0.84)min(P<0.05).The baseline success rate of TceMEP in the observation group was 100%,with an average stimulation threshold of(225.00±22.13).In contrast,the control group had a baseline success rate of 84.72%and an average stimulation threshold of(342.01±31.07)V for TceMEP monitoring prior to nailing procedures.The success rate of monitoring TceMEP after nailing in the control group was 93.06%,whereas it reached 100%in the observation group,demonstrating a statistically significant difference between the two groups(P<0.05).There were no statistically significant differences in sensitiv-ity and specificity between the two groups for TceMEP monitoring results(P>0.05).Conclusions The success rate of monitoring TceMEP baseline immediately after tracheal intubation without muscle relaxation is higher,with a smaller stimulation threshold.There were no differences in sensitivity and specificity compared to the baseline moni-toring of TceMEP after spinal exposure during the operation.
3.Systemic factors influencing the complexity and surgical prognosis of proliferative diabetic retinopathy
Lijun PU ; Jin LIU ; Zhaoxia MOU ; Songtao YUAN ; Ping XIE ; Qinghuai LIU ; Zizhong HU
Chinese Journal of Experimental Ophthalmology 2024;42(8):729-735
Objective:To evaluate the risk factors for the complexity and surgical prognosis in patients with proliferative diabetic retinopathy (PDR).Methods:A historical cohort study of the CONCEPT trial, including 97 patients (97 eyes) who were diagnosed with PDR and requiring three-channel 23-gauge transconjunctival pars plana vitrectomy (PPV) from June 2017 to January 2018 at the First Affiliated Hospital of Nanjing Medical University.All patients received preoperative intravitreal injection of 0.5 mg conbercpet.Based on the PDR complexity score, patients were divided into >3 group or ≤3 group, and the systematic risk factors were compared between the two groups.The influence of sex, age, hypertension, renal insufficiency, duration of diabetes mellitus, and hemoglobin A1c level on the PDR complexity score was evaluated by multivariate logistic regression analysis.Based on age, patients were divided into <45 years group, 45-<60 years group, and ≥60 years group, and the differences in mean operative time, incidence of intraoperative hemorrhage, surgically induced lacrimation and silicone oil filling, and incidence of hemorrhage on color fundus photos and macular edema by optical coherence tomography at postoperative months 1 and 6 were analyzed among different age groups.This study adhered to the Declaration of Helsinki.The study protocol was approved by the Ethics Committee of The First Affiliated Hospital of Nanjing Medical University (No.2017-SR-283).Written informed consent was obtained from each subject.Results:The age of patients with PDR complexity score >3 was 46.5(36.0, 51.8) years, which was less than 54.0(45.5, 61.5) years for PDR complexity score ≤3, and the difference was statistically significant ( Z=1.835, P=0.002).Among the factors predicting PDR complexity score >3, logistic regression analysis indicated that only age was statistically significant ( P=0.005).For each 1-year increase in age, the risk of PDR complexity score >3 would increase by 7.4%( OR: 0.929, 95% CI: 0.883-0.977).Among the systemic factors, there were significant differences in age, history of diabetes, proportion of patients with hypertension and renal insufficiency among the three age groups (all at P<0.05).Among the ocular factors, there were significant differences in the proportion of patients with history of retinal laser treatment, fibrovascular membrane and complexity score >3 among the three groups (all at P<0.05).The proportion of patients with fibrovascular membrane and complexity score >3 in the <45 years group was significantly higher than that in the 45-<60 and ≥60 years groups (all at P<0.05).There were significant differences in the proportion of patients with intraoperative bleeding and silicone oil filling in the three age groups (all at P<0.017).The proportion of intraoperative bleeding and silicone oil filling in <45 years group was significantly higher than that in 45-<60 and ≥60 years groups (all at P<0.05).The macular edema on postoperative month 1 in the <45 years old group was significantly higher than that in the 45-<60 and ≥60 years groups (both at P<0.05). Conclusions:Among systemic factors, age has a significant impact on the increased PDR complexity and contributes to the poor prognosis of patients.There is a higher percentage of intraoperative complications and early postoperative macular edema in patients in the younger age group compared to the older age group.
4.Establishment and preliminary application of RAA assay for varicella-zoster virus
Haoze LIU ; Ruichen WANG ; Weijia ZHANG ; Xiaohui YAO ; Shihong FU ; Kai NIE ; Fan LI ; Qikai YIN ; Ying HE ; Huanyu WANG ; Ruiping HU ; Songtao XU
Chinese Journal of Experimental and Clinical Virology 2023;37(6):631-636
Objective:To establish a rapid method for the detection of varicella-zoster virus (VZV) by recombinase-aid amplification (RAA).Methods:The whole genome sequences of VZV were downloaded from the global shared database for comparison and analysis. Specific primers and probe were designed for the four conserved genes respectively and the optimal combination was selected. The optimal reaction system was selected through the concentration gradient of primers and probes, and a fluorescence RAA detection method was established. The sensitivity of the method was evaluated with VZV positive plasmid standard and clinical samples with gradient dilution, the repeatability of the method was evaluated with the lowest detectable limit concentration of positive plasmid standard, and the specificity of other viral nucleic acid method was evaluated. At the same time, this method and quantitative real-time PCR (qPCR) were used to detect clinical samples and the result were compared.Results:The optimal combination of primer pair F2/R2 and probe P2 targeting open reading frame (ORF) 28 gene was selected. Considering the cost factor, the optimal primer concentration was set at 500 nmol/L and the optimal probe concentration was 280 nmol/L. The minimum detection limit was 10 1 copies/μL, and the minimum clinical positive samples with a Ct value of 36.027 could be detected, and the result of repeated experiments were consistent. The method has no cross-reaction with other viral nucleic acids. The detection rate of clinical positive samples was 93.33%, which was almost identical to that of qPCR. Conclusions:This method is simple to operate with high sensitivity, strong specificity, low requirements for experimental conditions, visual detection result, and can detect VZV nucleic acid in samples within 20 minutes, which is a rapid VZV detection method that can be considered for clinical use for detection.
5.Effects of repetitive transcranial magnetic stimulation combined with oral paroxetine on cognitive status and activities of daily living in older adult patients with severe depression
Xiejun HU ; Jianguang GAN ; Songtao LI
Chinese Journal of Primary Medicine and Pharmacy 2022;29(2):161-164
Objective:To investigate the efficacy of repetitive transcranial magnetic stimulation (rTMS) combined with oral paroxetine in the treatment of older adult patients with severe depression and its effects on the scores of the Hamilton Rating Scale for Depression (HAMD), the Mini-Mental State Examination (MMSE), and Activities of Daily Living (ADL).Methods:A total of 192 older adult patients with severe depression who received treatment in Shaoxing 7 th People's Hospital from January 2018 to December 2019 were included in this study. They were randomly assigned to receive either oral paroxetine (control group, n = 96) or rTMS + oral paroxetine (observation group, n = 96). All patients received 1 month of treatment. Clinical efficacy was compared between the two groups. HAMD, MMSE, and ADL scores pre- and post-treatment and the incidence of adverse events during the treatment were compared between the two groups. Results:Total response rate was significantly higher in the observation group than in the control group [96.88% (93/96) vs. 89.58% (86/96), χ2 = 4.04, P < 0.05]. HAMD scores post-treatment were significantly lower in the observation group than in the control group [(6.43 ± 2.33) points vs. (11.32 ± 2.02) points, t = 15.53, P < 0.05]. MMSE and ADL scores post-treatment in the observation group were (29.13 ± 3.01) points and (71.52 ± 5.32) points, respectively, which were significantly higher than those in the control group [(24.65 ± 2.79) points, (69.65 ± 5.17) points, t = 10.69, 2.47, P < 0.05]. There was no significant difference in the incidence of adverse events between the two groups ( P > 0.05). Conclusion:The combined therapy of rTMS and oral paroxetine is highly effective on severe depression in older adult patients. It can improve cognitive function and the activities of life living.
6.Establishment of TaqMan RT-PCR assay for Wuxiang virus
Danhe HU ; Xiaohui YAO ; Shihong FU ; Fan LI ; Tianmeng GU ; Junjie CHEN ; Ying HE ; Jiayu YIN ; Songtao XU ; Xiangdong LI ; Kai NIE ; Huanyu WANG ; Guodong LIANG
Chinese Journal of Experimental and Clinical Virology 2022;36(4):460-464
Objective:To establish a real-time fluorescent quantitative TaqMan reverse transcription polymerase chain reaction (Real-time RT-PCR) detection method for Wuxiang virus (WUXV).Methods:All gene sequences of WUXV were downloaded from GenBank, and multi-sequence alignment analysis was performed using Mega-X. Primers and probes designed for the highly conservative region of S-segment genes were selected to evaluate the specificity, sensitivity and stability of detection reactions.Results:The established method can specifically detect WUXV and does not cross-react with various arboviruses. The lowest detection limit was 1 pfu/ml. The inter-batch variation coefficients of repeated detection cycle threshold ( Ct) of the same sample were all less than 1.00%. TaqMan RT-PCR was used to detect 30 batches of sandflies nucleic acid samples, and 7 of them showed positive amplification curve of WUXV. Conclusions:TaqMan RT-PCR with high sensitivity, specificity and repeatability has been successfully established, which can be used to screen large quantities of samples of WUXV.
7.Genetic characterization of varicella-zoster virus in Liaoning province in 2019, China
Hong GUO ; Shuang HAO ; Ruiping HU ; Yan WANG ; Songtao XU
Chinese Journal of Experimental and Clinical Virology 2021;35(1):57-61
Objective:To analyze the genetic characteristics of varicella-zoster virus (VZV) in Liaoning province in 2019.Methods:Vesicle fluid samples were collected from 32 individuals with suspected VZV infection in Liaoning province from 2019. Nucleic acids were extracted, the suspected samples were screened by real-time fluorescent quantitative PCR. Single nucleotide polymorphisms (SNP) sites on ORF22, ORF38 and ORF62 were detected and analyzed in three open reading frames (ORFS) of positive samples. The samples and sequence data were collected and the gene sequences were compared to determine the genotype of the virus strain, and the vaccine strain was identified from the wild strain.Results:In the 32 suspected samples, VZV-positive strains were detected in 27 samples, all belonged to wild-type strain of Clade 2. Compared with Clade 2 referenced strains, the homology of nucleotide and amino acid for all 10 samples were 98.85%-100% and 96.9%-100%, respectively. There was a synonymous mutation (A→G) in position 37990 of LN-14 strain. The nucleotide homology of ORF22 showed that all 27 samples were on the same branch with the Clade 2 referenced strains and had a vaccine breakthrough cases.Conclusions:This study reveals that the VZV strains circulating in Liaoning province in 2019 were all wild-type strains belonging to Clade 2.
8.Effects of escitalopram in the treatment of treatment-resistant depression
Xiejun HU ; Hong FENG ; Songtao LI ; Fei SHEN
Chinese Journal of Primary Medicine and Pharmacy 2020;27(14):1725-1728
Objective:To observe the clinical effect of escitalopram in the treatment of treatment-resistant depression (TRD).Methods:A total of 90 patients with TRD who admitted to the Seventh People's Hospital of Shaoxing from January 2017 to January 2019 were divided into group A and group B by the random number table method, with 45 cases in each group.All subjects were given conventional treatment.On this basis, group A was treated with citalopram, and group B was treated with escitalopram.The clinical effect and adverse reactions were compared between the two groups.Results:The scores of Hamilton depression scale (HAMD) and clinical global impression (CGI) of group B after medication[(8.27±1.44)points and (2.82±0.74)points] were significantly lower than those of group A[(15.14±2.35)points and (4.87±1.33)points]( t=16.721, 9.035, all P<0.05). The total effective rate in group B after treatment (91.11%) was higher than that in group A (71.11%) (χ 2=5.874, P<0.05). The incidence of adverse reactions in group B (8.88%) was lower than that in group A (24.44%) (χ 2=3.920, P<0.05). Conclusion:Escitalopram is significantly effective in the treatment of TRD.It can effectively relieve the symptoms and reduce the incidence of adverse reactions.
9. Diagnosis of lung biopsy employing the 2015 WHO criteria and detection of related oncogenic driver mutations
Fang FANG ; Xubai QIAO ; Li YANG ; Jing DI ; Songtao HU ; Dongge LIU ; Ning LYU
Chinese Journal of Pathology 2019;48(4):270-275
Objective:
The diagnostic criteria of lung biopsy specimens by 2015 WHO lung tumor classification were used to evaluate lung biopsy specimens along with detection of genetic alterations of major tumor driving genes including epidermal growth factor receptor (EGFR).
Methods:
The clinical data, histological slides, immunohistochemical stains and special stains of 806 lung biopsy specimens at Beijing Hospital from July 2015 to July 2018 were retrospectively analyzed. Diagnosis of lung cancer was reclassified according to the 2015 WHO lung tumor classification and related gene mutation data were analyzed.
Results:
During a three-year period, the total number of lung cancer diagnosis was 483 cases, including 221 female and 262 male patients with age ranging from 37 to 85 years (median age of 65 years). There were 40 cases(8.28%) of small cell carcinoma,11 cases (2.28%) of large cell neuroendocrine carcinoma, 3 cases (0.62%) of combined neuroendocrine carcinoma, 2 cases(0.41%) of atypical carcinoid, 208 cases (43.06%) of adenocarcinoma, 92 cases(19.05%) of non-small cell carcinoma, favor adenocarcinoma, 66 cases (13.66%) of squamous cell carcinoma, 42 cases(8.70%) of non-small cell carcinoma, favor squamous cell carcinoma, 16 cases(3.31%) of non-small cell carcinoma, not otherwise specified, and 3 cases (0.62%) of non-small cell carcinoma, possible adenosquamous carcinoma. Among 202 cases tested, 107 cases (52.97%) showed EGFR mutations, including 86 of 133 cases (64.66%) of adenocarcinoma and 18 of 52 cases (34.62%) of non-small cell carcinoma, favor adenocarcinoma. Twenty two cases were found to have T790M mutation among 27 patients after EGFR TKI targeted drug therapy. Immunohistochemical staining of ALK (D5F3) was positive in 3 of 354 cases of non-small cell lung cancer, confirmed by EML4-ALK fusion gene fluorescence PCR. ROS1 gene fusion was found in 1 of 38 cases. Splicing mutations in exon 14 of MET gene were seen in one case of non-small cell carcinoma with spindle cell differentiation.
Conclusion
The new diagnostic criteria by the 2015 WHO lung tumor classification is better suited for diagnosing lung biopsy specimens and providing accurate treatment guidance and improving the patient outcome.
10. Multidisciplinary discussion for diagnosis of lung diseases: A retrospective analysis of 217 cases undergoing non-tumor lung biopsy
Fang FANG ; Min ZHANG ; Di MENG ; Songtao HU ; Yanming LI ; Dongge LIU
Chinese Journal of Geriatrics 2019;38(12):1363-1367
Objective:
To study on the diagnostic value of non-tumor lung biopsy by the multidisciplinary discussion including clinician, radiologist and pathologist.
Methods:
Clinical data, imaging data and data of hematoxylin-eosin, immunohistochemical and special staining of pathological lung tissues in 217 cases undergoing non-tumor lung biopsy in Beijing Hospital during July 2015 to July 2018 were retrospectively analyzed.The diagnosis results were summarized and analyzed.
Results:
The age range in 217 cases was 45-89 years, and the median age was 67 years, with 92 females and 125 males.The descriptive diagnoses were found in forty-two cases(19.4%, 42/217). And 175 cases could be confirmatively diagnosed by the multidisciplinary discussion of clinician, radiologist and pathologist.And the diagnostic rate of lung puncture biopsy was 80.6%(175/217 cases). Inflammatory lesions were divided into infection and non-infection.A total of 68 infection cases(31.3%, 68/217)included tuberculosis(43/68, 63.2%), bacterial pneumonia(14/68, 20.6%)and fungal infection(11/68, 16.2%). A total of 107 cases(49.3%, 107/217)of non-infective cases included the following: organized pneumonia(53/107, 49.5%), interstitial pneumonia with autoimmune features(iPAF)(16/107, 15.0%), nonspecific interstitial pneumonia(NSIP)(13/107, 12.1%), hypersensitivity pneumonitis(8/107, 7.5%), granulomatosis with polyangiitis(GPA)(4/107, 3.7%), eosinophilic pneumonia(2/107, 1.9%), sarcoidosis(2/107, 1.9%), acute fibrinous and organizing pneumonia(AFOP)(2/107, 1.9%)and coal pneumoconiosis(2/107, 1.9%, for each), and IgG4 related diseases(1/107, 0.9%), pleuraparenchymal fibroelastomatosis(PPFE)(1/107, 0.9%), asbestos lung(1/107, 0.9%), lipid pneumonia(1/107, 0.9%)and inhaled pneumonia(1/107, 0.9%).
Conclusions
The diagnoses of the puzzled non-tumor lung diseases were more accurate by pathological examination of lung tissue by using special stain, immunohistochemical stain and other pathological means, and by close multidisciplinary consultation of clinician, radiologist and pathologist, so as to facilitate the diagnosis and treatment of diseases.

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