Objective:To investigate the application value of 99Tc m-dimercaptosuccinic acid (DMSA) renal static imaging to correct renal ROI and renal depth in measurement of glomerular filtration rate (GFR) of the injured-kidney in infants with congenital hydronephrosis. Methods:From January 2022 to November 2022, 30 infants with congenital hydronephrosis (25 males, 5 females, age 3.0(1.0, 5.5) months) in Nuclear Medicine Department of the Second Hospital of Shanxi Medical University were prospectively included. Sixty kidneys were divided into 3 groups according to the degree of hydronephrosis: normal group (7 left kidneys and 12 right kidneys), mild hydronephrosis group (10 left kidneys and 12 right kidneys) and moderate to severe hydronephrosis group (13 left kidneys and 6 right kidneys). The patients received 99Tc m-diethylenetriamine penta-acetic acid (DTPA) diuretic renal dynamic imaging and 99Tc m-DMSA renal static imaging within 3 days, and bilateral renal lateral acquisition was performed at the end of the imaging. The depths (cm) of kidneys measured based on the lateral image and Tonnesen′s formula were compared. The single kidney GFR (ml·min -1·1.73 m -2) measured after the renal ROI corrected, or renal depth corrected, or renal ROI-depth corrected by renal static imaging (aGFR single, dGFR single, adGFR single) was compared with that measured by Gates method (gGFR single). The one-way analysis of variance, the least significant difference- t test and Dunnett- t test were used for data analysis. Results:In different hydronephrosis groups, renal depths measured by dynamic imaging, static imaging and Tonnesen formulas were significantly different ( F values: 38.07-59.63, t values: 2.53-15.17, all P<0.05). There were no significant differences in renal depth between the two kinds of imaging in the normal group ( F values: 34.89, 54.30, both P<0.05; t values: 0.65, 1.60, both P>0.05). aGFR single of all groups were smaller than gGFR single, but the values were similar, and were not significantly different in normal kidneys ( F values: 3.02, 5.51, both P<0.05; t values: 0.12, 0.53, both P>0.05), while those in abnormal kidneys (left kidneys: 43.27±8.84 vs 46.19±7.88, F=9.75, t=2.18, both P<0.05; right kidneys: 39.87±10.25 vs 42.94±10.28, F=10.32, t=2.04, both P<0.05) and in mild (48.58±10.94 vs 51.08±11.44, F=10.34, t=2.04, both P<0.05), moderate to severe (34.41±8.84 vs 37.62±8.84, F=19.97, t=3.41, both P<0.05) hydronephrosis groups were different. The dGFR single was significantly higher than gGFR single in 3 (normal, mild, moderate to severe) hydronephrosis groups ( t values: 3.82, 3.39, 3.81, all P<0.01). adGFR single was between aGFR single and dGFR single, and adGFR single were significantly different from gGFR single in normal right kidneys, in abnormal kidneys and in mild and moderate to severe hydronephrosis groups ( t values: 2.25-3.12, all P<0.05). Conclusions:Renal static imaging corrected ROI can improve the accuracy of GFR measurement of the affected kidney, especially for children with moderate and severe congenital hydronephrosis. However, the GFR corrected for renal depth or ROI-depth are significantly different from the true GFR. The lateral kidney depth measured by static imaging is more accurate than that measured by dynamic imaging.

Objective:To understand the epidemiological characteristics of human respiratory syncytial virus (HRSV) among acute respiratory infection (ARI) cases in 16 provinces of China from 2009 to 2023.Methods:The data of this study were collected from the ARI surveillance data from 16 provinces in China from 2009 to 2023, with a total of 28 278 ARI cases included in the study. The clinical specimens from ARI cases were screened for HRSV nucleic acid from 2009 to 2023, and differences in virus detection rates among cases of different age groups, regions, and months were analyzed.Results:A total of 28 278 ARI cases were enrolled from January 2009 to September 2023. The age of the cases ranged from<1 month to 112 years, and the age M ( Q1, Q3) was 3 years (1 year, 9 years). Among them, 3 062 cases were positive for HRSV nucleic acid, with a total detection rate of 10.83%. From 2009 to 2019, the detection rate of HRSV was 9.33%, and the virus was mainly prevalent in winter and spring. During the Corona Virus Disease 2019 (COVID-19) pandemic, the detection rate of HRSV fluctuated between 6.32% and 18.67%. There was no traditional winter epidemic peak of HRSV from the end of 2022 to the beginning of 2023, and an anti-seasonal epidemic of HRSV occurred from April to May 2023. About 87.95% (2 693/3 062) of positive cases were children under 5 years old, and the difference in the detection rate of HRSV among different age groups was statistically significant ( P<0.001), showing a decreasing trend of HRSV detection rate with the increase of age ( P<0.001). Among them, the HRSV detection rate (25.69%) was highest in children under 6 months. Compared with 2009-2019, the ranking of HRSV detection rates in different age groups changed from high to low between 2020 and 2023, with the age M (Q1, Q3) of HRSV positive cases increasing from 1 year (6 months, 3 years) to 2 years (11 months, 3 years). Conclusion:Through 15 years of continuous HRSV surveillance analysis, children under 5 years old, especially infants under 6 months old, are the main high-risk population for HRSV infection. During the COVID-19 pandemic, the prevalence and patterns of HRSV in China have changed.

Objective:To understand the epidemiological characteristics of human respiratory syncytial virus (HRSV) among acute respiratory infection (ARI) cases in 16 provinces of China from 2009 to 2023.Methods:The data of this study were collected from the ARI surveillance data from 16 provinces in China from 2009 to 2023, with a total of 28 278 ARI cases included in the study. The clinical specimens from ARI cases were screened for HRSV nucleic acid from 2009 to 2023, and differences in virus detection rates among cases of different age groups, regions, and months were analyzed.Results:A total of 28 278 ARI cases were enrolled from January 2009 to September 2023. The age of the cases ranged from<1 month to 112 years, and the age M ( Q1, Q3) was 3 years (1 year, 9 years). Among them, 3 062 cases were positive for HRSV nucleic acid, with a total detection rate of 10.83%. From 2009 to 2019, the detection rate of HRSV was 9.33%, and the virus was mainly prevalent in winter and spring. During the Corona Virus Disease 2019 (COVID-19) pandemic, the detection rate of HRSV fluctuated between 6.32% and 18.67%. There was no traditional winter epidemic peak of HRSV from the end of 2022 to the beginning of 2023, and an anti-seasonal epidemic of HRSV occurred from April to May 2023. About 87.95% (2 693/3 062) of positive cases were children under 5 years old, and the difference in the detection rate of HRSV among different age groups was statistically significant ( P<0.001), showing a decreasing trend of HRSV detection rate with the increase of age ( P<0.001). Among them, the HRSV detection rate (25.69%) was highest in children under 6 months. Compared with 2009-2019, the ranking of HRSV detection rates in different age groups changed from high to low between 2020 and 2023, with the age M (Q1, Q3) of HRSV positive cases increasing from 1 year (6 months, 3 years) to 2 years (11 months, 3 years). Conclusion:Through 15 years of continuous HRSV surveillance analysis, children under 5 years old, especially infants under 6 months old, are the main high-risk population for HRSV infection. During the COVID-19 pandemic, the prevalence and patterns of HRSV in China have changed.

Humans ; Cohort Studies ; Body Mass Index ; Percutaneous Coronary Intervention ; Coronary Artery Disease ; Inflammation ; Treatment Outcome ; Risk Factors

Objective:To explore the differences of renal dynamic imaging parameters between operation group and non-operation group in infants with severe hydronephrosis, so as to accumulate theoretical basis for diuretic renal scintigraphy to help the treatment decision making.Methods:A total of 107 infants (age: 3(2, 6) months; 90 males and 17 females) with severe hydronephrosis, who underwent diuretic renal scintigraphy between March 2018 and October 2021 in Shanxi Children′s Hospital were retrospectively reviewed. All patients were diagnosed with ureteropelvic junction obstruction and divided into operation group ( n=87) and no-operation group ( n=20). The differences of differential renal function (DRF), peak time, half-time and drainage curve between the two groups were compared with the independent-sample t test or χ2 test, and the correlation between the renal function of the affected side and the anteroposterior pelvic diameter (APD) was analyzed with Pearson correlation analysis. Results:The operation group included 17 patients with DRF<40%, 60 patients with DRF between 40%-55%, and 10 patients with DRF>55%(supernormal renal function). The 40%-55% was considered as normal DBF, and the rest were abnormal. Infants with abnormal renal function in the operation group ( n=27) were more than those in the non-operation group ( n=3), but there was no statistical difference ( χ2=2.07, P=0.150). The proportion of obstruction curve in the operation group (85.1%, 74/87) was significantly higher than that in the non-operation group (55.0%, 11/20; χ2=7.24, P=0.007). Compared with the non-operation group, the peak time of affected kidney in the operation group was significantly longer ((22.77±7.52) vs (15.26±10.29) min; t=3.78, P<0.001), as well as the peak time of contralateral kidney ((11.25±8.47) vs (6.65±5.75) min; t=2.30, P=0.023). There was a negative correlation between the DRF of the affected side and the APD ( r=-0.48, P<0.001). Conclusions:The DBF is mostly in the normal range in infants with severe hydronephrosis, and supernormal renal function is common. The previous operation indication (DRF<40%) is not suitable for the infants, and it needs to be analyzed combined with the type of curve and the APD determined by color Doppler ultrasound. The prolongation of contralateral renal peak time may be an important parameter for the surgical evaluation of severe hydronephrosis in infants.

Objective:To disclose the genome characteristics and mutations of 2019 novel coronavirus (2019-nCoV) strains from the imported cases of Coronavirus Disease 2019 (COVID-19) in Gansu province, thereby to provide scientific reference for the prevention and control of COVID-19 in Gansu province. Methods:The respiratory tract specimens of imported COVID-19 cases from seven countries in Gansu province in 2020 were collected. The virus genome was sequenced by the second-generation sequencing technology, the whole genome sequences were compared and analyzed, and the MEGA software was used to construct a phylogenetic tree based on the neighbor-joining method.Results:A total of 46 2019-nCoV genome sequences with a length of 29 605~29 903 bp were obtained. Compared with the Wuhan reference strain (GenBank ID: NC_045512.2), it was found that the median (minimum to maximum) number of the nucleotide mutations of the 2019-nCoV genome sequence of the imported cases was 10 (7-24). A total of 134 nucleotide mutation sites were found in all 2019-nCoV genome sequences from 7 entry countries in Gansu province, distributed in 11 open reading frames (ORFs). The top three nucleotide mutations in different proteins: ORF1ab (78), S(20), N(12). Among the 134 nucleotide mutations, 82 caused amino acid mutations, and all of them were missense mutations. No insertions or deletions were seen. Types of deletion mutations, the top three amino acid mutations in different proteins: ORF1ab (46), S(11), N(10); the key sites of the receptor binding domain (RBD) of the S protein have not been mutated.Conclusions:No imported cases in Gansu province have been found to carry the reported mutations that can clearly lead to changes in the spread and pathogenicity of 2019-nCoV.

Objective:To study the epidemic and etiologic characteristics of influenza virus(Flu)and respiratory syncytial virus (RSV) infections in outpatient influenza-like illness(ILI)cases of children under 10 years of age in Gansu province in 2018 And to provide evidences for diagnosis, treatment, control and prevention of Flu and RSV infections in Gansu province.Methods:A total of 8 559 pharyngeal swab samples of ILI outpatients cases were tested with real-time fluorescent PCR to detect Flu, 3 436 of which were detected by RT-PCR for RSV.Results:Of the 8559 specimens, 934 (10.91%) samples were positive for Flu. Among them, 431 were positive for H1N1, 70 were positive for H3N2, 428 were positive for Flu B, 5 were mixed; 320 of the 3436 (9.31%, ) samples were positive for RSV. There were significant differences in the positive rates of Flu and RSV among 14 cities and prefectures ( χ2=56.99, χ2=263.34, Р< 0.01). Influenza reached its peak in January 2018 with a positive rate of 50.70%. Flu B/Yamagata strain (53.53%) and A H1N1 (39.93%) were prevalent simultaneously. The peak of RSV epidemic was from February to April, the positive rate was 13.98%. The RSV positive rate of children under 5 years of age was 10.11%, higher than that of children over 5 years of age was 6.94%. There was statistical significance ( χ2=7.67, Р<0.01). Conclusions:RSV and influenza viruses are the main pathogens in ILI cases of children under 10 years of age. There are epidemic peaks in winter and spring every year. It is suggested that the monitoring of RSV and the development and application of vaccine should be strengthened.

Objective: To investigate the effect of different treatment methods on the survival of patients with stage IV differentiated thyroid cancer (DTC). Methods: From January 2013 to June 2015, 90 patients with stage IV DTC in the Second Hospital of Shanxi Medical University were randomly divided into three groups according to the digital table, A, B and C group, with 30 cases in each group.The patients in A group were treated with surgery combined with ¹³¹I, and the patients in B group were treated with surgery combined with TSH inhibition, and the patients in C group were treated with operation combined with ¹³¹I + TSH inhibition.The therapeutic effect, postoperative quality of life score and short-term and long-term survival rate were evaluated. Results: After treatment, the levels of Tg in A group [(25.06±3.41)μg/L] and C group [(24.89±3.27)μg/L] were significantly lower than that in B group [(45.46±3.58)μg/L], and the levels of TSH in B group [(0.36±0.26)mU/L] and C group [(0.36±0.18)mU/L] were significantly lower than that in A group [(0.67±0.31)mU/L] (t=3.624, 3.337, 3.289, 3.667, all P<0.05). The success rates of nail clearance in A group and C group were 50.00%(15/30) and 56.67%(17/30), respectively, which were significantly higher than 33.33% (10/30) in B group (χ²=3.475, 4.967, all P<0.05). The postoperative quality of life (GQOLI-74) scores among the three groups had statistically significant differences (F=4.354, 5.216, 4.672, 5.197, all P<0.05). The 1-year (80.00%), 2-year (53.33%) and 3-year (33.33%) survival rates in C group were significantly higher than those in A group (43.33%, 36.67%, 20.00%) and B group (40.00%, 33.33%, 16.67%) (χ²=5.467, 3.661, 3.287, all P<0.05). Conclusion For patients with stage IV DTC, the combination of ¹³¹I+ TSH inhibitory regimen and operation regimen can significantly improve the therapeutic effect, improve the quality of life and prolong the survival time.

Objective To analyze the etiological characteristics of human Brucella strains isolated, and to improve the precision in control and prevention of brucellosis. Methods In 2016, blood samples were collected from patients in Jingyuan County Gansu Province, and tested via the Rose-Bengal Plate Agglutination Test (RBPT) and the tube agglutination test methods,and serological positive blood samples were inoculated to bidirectional blood culture bottle for culturing, and further identified by traditional biological classification method and the Brucella abortus, Brucella melitensis, Brucella ovis, and Brucella suis species-specific PCR (AMOS-PCR). Multiple-locus variable number tandem repeat sequence analysis (MLVA) -16 was used to detect molecular typing and do cluster analysis. Results The isolated strain was identified by the traditional biological classification method, bacteria could grow in thionine and reddened dye, A and M factors agglutination tests were positive, Bk2phage treatment of bacterial strain cracking, but Tb, Wb phages were not cracked. AMOS-PCR amplification result showed a 731 bp band, which was a strain of Brucella melitensis. The results of MLVA-16 showed that there was a difference in the number of repeats on some Variaable Number of Tandem Repeat(VNTR)sites of the isolated strain. Clustering analysis showed that, the isolated strain was clusted into the same clade with the clustering of Brucella melitensis type 3 from GS-201605 in Gansu. And the clustering was similar compared with that of Zhejiang, Guangdong, Fujian and Yunnan. Conclusion Human brucellosis is a inputting transmission in Gansu Province, there is a genetic variation of genotype 3 sheep Brucella between Gansu Province and other domestic provinces.

Objective: The aim of this work was to report the surveillance and dissemination of NDM-1 positive bacteria in a patient and ward environment. Methods: In 2010, during the therapy for a 51 years old patient, clinical and environmental samples were collected for carbapenem resistant bacterial culture, according to the clinical microbiological examination. Strains identification and antibiotic susceptibility were tested by VITEK Compact 2 system and E-test. The bla_NDM-1 was detected by PCR and analyzed by sequencing. Plasmids containing bla_NDM-1 were submitted to PFGE-S1 and Southern hybridization. Results: During hospitalization from October 1st to November 4th, nine strains were isolated from blood, sputum, urine, fecal, and ward ground samples. The Klebsiella oxytoca, Raoultella planticola, and Acinetobacter baumannii were isolated from blood sample. The Klebsiella pneumonia and Acinetobacter baumannii were isolated from sputum sample. An Acinetobacter lwoffii was isolated from urine sample. An Escherichia coli was isolated from fecal sample. And the Acinetobacter lwoffii and Acinetobacter spp. were isolated from ward ground. Four strains were NDM-1 positive, which were Raoultella planticola (RpNDM1) isolated from blood, Escherichia coli (EcNDM1) isolated from fecal, Acinetobacter lwoffii (AlDNM1) and Acinetobacter spp. (AsNDM1) isolated from ward ground. Four NDM-1 positive strains were resistant to Piperacillin, Piperacillin tazobactam, Cefepime, Ceftriaxone, Ceftazidime, Imipenem, Meropenem, and Ertapenem. Southern hybridization revealed that bla_NDM-1 were all located on plasmids in the four positive strains. Conclusion bla_NDM-1 can transfer rapidly among different species, resulting in difficult to control and prevent. While isolating patient who is carrying NDM-1 positive strains, more attention should be paid to the disposal of patient's excreta, especially stool, should be paid more attention.