1.Effect of four-quadrant pre-positioning method in assisting the establishment of percutaneous nephrolithotomy access
Xiaoju DING ; Zhibo JIN ; Junfu YANG ; Zhankui JIA ; Jinjian YANG
Chinese Journal of Urology 2024;45(12):918-924
Objective:To investigate the effect of using " Four-Quadrant Pre-Positioning Method" combined with synchronous CT imaging to assist color doppler ultrasound in establishing an ideal puncture access for percutaneous nephrolithotomy (PCNL).Methods:A retrospective analysis was conducted on 113 patients with renal stones treated at the First Affiliated Hospital of Zhengzhou University from May 2021 to July 2023. Patients were divided into two groups based on the surgical method: the study group and the control group. The study group consisted of 64 patients who, from June 2022 to July 2023, underwent PCNL with the assistance of the four-quadrant pre-positioning method and color doppler ultrasound for puncture point localization. The control group consisted of 49 patients who underwent PCNL from May 2021 to May 2022. Based on the distribution of stones, both groups were further divided into three subgroups: subgroup 1: single renal pelvis or single renal calyx stones (study group: 27 patients, control group: 20 patients). Stone length was (34.27±7.69) mm vs. (39.77±11.34) mm, respectively. Subgroup 2: renal pelvis combined with a single renal calyx stone, or multiple stones in more than two renal calyces (study group: 19 patients, control group: 15 patients). Stone length was (45.77±9.50) mm vs.(40.94±11.34) mm, respectively. Subgroup 3: staghorn or cast stones (study group: 20 patients, control group: 17 patients). Stone length was (60.03±11.59) mm vs. (58.41±15.01) mm, respectively. There were no significant differences in gender, age, height, weight, side of the stone, stone length, or stone CT values between the subgroups ( P>0.05).The use of four-quadrant pre-positioning method results from multi-slice spiral CT imaging and the patient's anatomical characteristics. The 12th rib apex is taken as the origin, and the body's transverse and longitudinal axes are defined as the X and Y axes, respectively, to create the " Four Quadrants." The ideal puncture point is located within these quadrants. During the procedure, based on surface markings of the 12th rib apex, the " Four Quadrants" and ideal puncture point are identified on the patient's body surface, assisting the color doppler ultrasound in guiding the establishment of the puncture access. The puncture access establishment time, puncture first calyx success rate (criteria: for single renal pelvis or calyx stones, the first puncture access should achieve a stone-free rate >90%; for multiple renal calyx stones or staghorn stones, the first puncture access should achieve a stone-free rate >50%), surgical time, intraoperative blood loss, stone-free rate, and postoperative complications were compared between the study and control groups in each subgroup. Results:In subgroup 1, the puncture access establishment time was (4.74±2.25) minutes in the study group vs. (7.00±3.13) minutes in the control group ( P=0.006). In subgroup 2, the puncture access establishment time was (6.94±2.12) minutes in the study group vs. (9.80±2.83) minutes in the control group ( P=0.002), with the first calyx success rate being 94.7% (18/19) in the study group vs. 60.0% (9/15) in the control group ( P=0.028). The surgical time was (97.68±26.22) minutes vs. (136.29±33.00) minutes ( P=0.001).In subgroup 3, the puncture access establishment time was (8.00±2.69) minutes in the study group vs. (12.59±3.54) minutes in the control group ( P=0.001), with the first calyx success rate being 100.0% (20/20) in the study group vs. 76.5% (13/17) in the control group ( P=0.036). Intraoperative blood loss was (238.00±176.74) ml vs. (388.57±219.89) ml ( P=0.043). No significant differences were found between the two groups in terms of immediate postoperative stone-free rate (subgroup 1: 92.6% (25/27) vs. 95.0% (19/20), P=0.739; subgroup 2: 78.9% (15/19) vs. 73.3% (11/15), P=1.000; subgroup 3: 75.0% (15/20) vs. 70.5% (12/17), P=0.703) or complication rates (subgroup 1: 25.9% (7/27) vs. 25.0% (5/20), P=0.943; subgroup 2: 26.3% (5/19) vs. 40.0% (6/15), P=0.475; subgroup 3: 40.0% (8/20) vs. 41.2% (7/17), P=1.000). Conclusions:The four-quadrant pre-positioning method effectively assists in the use of color doppler ultrasound to establish an ideal puncture access during PCNL, reducing puncture access establishment time and improving the rationality of the puncture path. It also significantly reduces intraoperative blood loss, particularly for complex renal stones such as those in multiple renal calyces or staghorn stones, thereby enhancing the safety of the procedure.
2.Single nucleotide polymorphism heritability of non-syndromic cleft lip with or without cleft palate in Chinese population
Enci XUE ; Xi CHEN ; Xueheng WANG ; Siyue WANG ; Mengying WANG ; Jin LI ; Xueying QIN ; Yiqun WU ; Nan LI ; Jing LI ; Zhibo ZHOU ; Hongping ZHU ; Tao WU ; Dafang CHEN ; Yonghua HU
Journal of Peking University(Health Sciences) 2024;56(5):775-780
Objective:To delve into the intricate relationship between common genetic variations across the entire genome and the risk of non-syndromic cleft lip with or without cleft palate(NSCL/P).Methods:Utilizing summary statistics data from genome-wide association studies(GW AS),a thorough investigation to evaluate the impact of common variations on the genome were undertook.This involved assessing single nucleotide polymorphism(SNP)heritability across the entire genome,as well as within specific genomic regions.To ensure the robustness of our analysis,stringent quality control measures were applied to the GWAS summary statistics data.Criteria for inclusion encompassed the absence of missing values,a minor allele frequency≥1%,P-values falling within the range of 0 to 1,and clear SNP strand orientation.SNP meeting these stringent criteria were then meticulously included in our analy-sis.The SNP heritability of NSCL/P was calculated using linkage disequilibrium score regression.Addi-tionally,hierarchical linkage disequilibrium score regression to partition SNP heritability within coding re-gions,promoters,introns,enhancers,and super enhancers were employed,and the enrichment levels within different genomic regions using LDSC(v1.0.1)software were further elucidated.Results:Our study drew upon GWAS summary statistics data obtained from 806 NSCL/P trios,comprising a total of 2 418 individuals from the Chinese population.Following rigorous quality control procedures,490 593 out of 492 993 SNP were deemed suitable for inclusion in SNP heritability calculations.The observed SNP heritability of NSCL/P was 0.55(95%CI:0.28-0.82).Adjusting for the elevated disease pre-valence within our sample,the SNP heritability scaled down to 0.37(95%CI:0.19-0.55)based on the prevalence observed in the general Chinese population.Notably,our enrichment analysis unveiled significant enrichment of SNP heritability within enhancer regions(15.70,P=0.04)and super enhan-cer regions(3.18,P=0.03).Conclusion:Our study sheds light on the intricate interplay between common genetic variations and the risk of NSCL/P in the Chinese population.By elucidating the SNP heritability landscape across different genomic regions,we contribute valuable insights into the genetic basis of NSCL/P.The significant enrichment of SNP heritability within enhancer and super enhancer re-gions underscores the potential role of these regulatory elements in shaping the genetic susceptibility to NSCL/P.This paves the way for further research aimed at uncovering novel genetic pathogenic factors un-derlying NSCL/P pathogenesis.
3.Short-term efficacy and safety of inflatable video-assisted mediastinoscopic transhiatal esophagectomy and minimally invasive transthoracic esophagectomy for esophageal cancer: A systematic review and meta-analysis
Keyong LI ; Tao CHENG ; Dacheng JIN ; Zhibo YE ; Changhao QUE ; Yaping WANG ; Qizhou BAI
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2024;31(07):1027-1034
Objective To compare the short-term efficacy and safety of inflatable video-assisted mediastinoscopic transhiatal esophagectomy (IVMTE) and minimally invasive transthoracic esophagectomy (MITE) in the treatment of esophageal cancer. Methods The Cochrane Library, EMbase, PubMed, Wanfang Database, VIP, and CNKI were searched. Literatures related to the short-term efficacy and safety of IVMTE and MITE in the treatment of esophageal neoplasms published from the establishment of the database to December 2023 were searched and meta-analysis was conducted by using RevMan5.4. Quality of case control study or cohort study was assessed by the Newcastle-Ottawa Scale (NOS) and quality of randomized controlled trial was assessed by Cochrane Handbook. Results A total of 14 studies (12 case control studies and 1 prospective cohort study wiht NOS score more than 7 points and 1 randomized controlled trial wiht low bias risk) were included, comprising 1 163 patients, with 525 in the IVMTE group and 638 in the MITE group. The results of meta-analysis revealed that the IVMTE group exhibited significantly shorter operative time [MD=−60.42, 95%CI (−83.78, −37.07), P<0.001] and postoperative hospital stay [MD=−2.44, 95%CI (−2.93, −1.94), P<0.01] compared to the MITE group. Moreover, intraoperative blood loss [MD=−34.67, 95%CI (−59.11, −10.23), P=0.005], three-day postoperative drainage [MD=−286.66, 95%CI (−469.93, −103.40), P=0.002], incidence of postoperative pulmonary infection [OR=0.38, 95%CI (0.26, 0.56), P<0.001], lung leakage rate [OR=0.12, 95% CI (0.02, 0.63), P=0.01] and overall complication rate [MD=0.41, 95%CI (0.22, 0.75), P=0.004] were all lower in the IVMTE group compared to those in the MITE group. However, the MITE technique demonstrated superiority over IVMTE regarding intraoperative lymph dissection number [MD=−3.52, 95%CI (−6.36, –0.68), P=0.02] and intraoperative recurrent laryngeal nerve injury [OR=1.78, 95%CI (1.22, 2.60), P=0.003]. No significant difference was observed between both methods concerning anastomotic fistula. Conclusion Compared to MITE, IVMTE has advantages such as shorter operation time, less intraoperative blood loss, shorter hospital stay, less postoperative drainage within 3 days, and a lower incidence of pulmonary complications. In terms of laryngeal recurrent nerve injury and lymphatic dissection, MITE operation offers more benefits.
4.Efficacy of adjuvant radiotherapy after thymoma resection: A systematic review and meta-analysis
Changhao QUE ; Yaping WANG ; Zhibo YE ; Keyong LI ; Dacheng JIN ; Yunjiu GOU ; Chengfeng WANG
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2024;31(10):1522-1530
Objective To systematically evaluate the efficacy of adjuvant radiotherapy after thymoma resection. Methods The PubMed, EMbase, The Cochrane Library, Web of Science, Wanfang, VIP, CNKI databases were systematically searched to find relevant literature comparing the efficacy and effectiveness of thymoma resection and thymoma resection+postoperative radiation therapy (PORT) for treating thymoma published from inception to January 2024. The Newcastle-Ottawa Scale (NOS) was used to evaluate the quality of included retrospective studies, and Review Manager 5.4 software was used to perform meta-analysis. Results A total of 23 articles were included, all of which were retrospective studies. There were a total of 13742 patients, including 6980 patients in the simple surgery group, with 3321 males and 3659 females, and an average age of 54.08 years; 6762 patients in the surgery+PORT group, with 3385 males and 3377 females, and an average age of 53.76 years. The NOS scores of the included literature were all≥7 points. The results of the meta-analysis showed that compared with the simple surgery group, the surgery+PORT group had higher 1-year overall survival rate [OR=0.32, 95%CI (0.25, 0.42), P<0.001], 3-year overall survival rate [OR=0.55, 95%CI (0.48, 0.64), P<0.001], 5-year overall survival rate [OR=0.66, 95%CI (0.58, 0.75), P<0.001], 10-year overall survival rate [OR=0.71, 95%CI (0.57, 0.88), P=0.002], 1-year disease-free survival rate [OR=0.47, 95%CI (0.23, 0.93), P=0.030], 5-year disease-free survival rate [OR=0.61, 95%CI (0.45, 0.84), P=0.003], 3-year disease-specific survival rate [OR=0.44, 95%CI (0.35, 0.55), P<0.001], 5-year disease-specific survival rate [OR=0.53, 95%CI (0.44, 0.63), P<0.001] and 10-year disease-specific survival rate [OR=0.53, 95%CI (0.35, 0.82), P=0.004]. But there was no statistically significant difference between the two groups in terms of 3-year disease-free survival rate [OR=0.86, 95%CI (0.61, 1.22), P=0.400], 10-year disease-free survival rate [OR=0.70, 95%CI (0.47, 1.05), P=0.080] and 1-year disease-specific survival rate [OR=0.83, 95%CI (0.55, 1.26), P=0.380]. Conclusion PORT after thymoma resection has more advantages than simple surgical treatment in terms of 1-, 3-, 5-, and 10-year overall survival, 1- and 5-year disease-free survival, and 3-, 5- and 10-year disease-specific survival.
5.Infection status and molecular types of rhinovirus among cases of acute respiratory tract infections in Luohe City, Henan Province, from 2017 to 2022
Yage WANG ; Baicheng XIA ; Zhibo XIE ; Jin XU ; Yao ZHANG ; Zhibo ZHANG ; Xin SUN ; Haoran WANG ; Huiling WANG ; Zhen KONG ; Jinhua SONG ; Yiding ZHANG ; Yan ZHANG
Chinese Journal of Preventive Medicine 2024;58(4):466-473
Objective:To understand the infection status and molecular types of rhinovirus (RV) among cases of Acute Respiratory Infections (ARIs) in Luohe City, Henan Province, from 2017 to 2022.Methods:From October 2017 to June 2022, clinical and epidemiological data were collected from 2 270 cases of ARIs at Luohe Central Hospital in Henan Province. Throat swab specimens were obtained from these cases. Real-time quantitative polymerase chain reaction (qPCR) was used to screen for RV-positive specimens. Subsequently, the positive samples were subjected to nested reverse transcription polymerase chain reaction (nested RT-PCR) to amplify the full-length VP1 region. Using the MEGA software, along with 169 RV reference strains recommended by the International Committee on Taxonomy of Viruses, a phylogenetic tree was constructed to determine RV types.Results:Among the 2 270 cases of ARIs, there were 1 283 male cases (56.52%). The median age ( Q 1, Q 3) was 3 (1, 6) years, with the population under 5 years old accounting for 68.59% (1 557/2 270). RV was detected in 137 cases (6.04%), of which 68 cases (49.64%) showed co-detection with other viruses, with the most common being co-detection with enterovirus, accounting for 14.60% (20/137). The RV detection rates in the age groups of 0-4 years, 5-14 years, 15-59 years, and≥60 years were 6.42% (100/1 557), 4.69% (21/448), 3.80% (6/158), and 9.35% (10/107), respectively, with no statistically significant differences ( χ2=5.310, P=0.150). The overall detection rates of RV before (2017-2019) and during (2020-2022) the COVID-19 pandemic showed no statistically significant difference ( χ2=1.823, P=0.177). A total of 109 VP1 sequences were obtained, including 62 types. Among them, RV-A, RV-B, and RV-C had 42, 3, and 17 types respectively. Conclusion:RV is one of the predominant pathogens in ARIs cases in Luohe City, Henan Province, from 2017 to 2022. Multiple types of RV co-circulate without any apparent dominant type.
6.Epidemiological characteristics of human respiratory syncytial virus among acute respiratory infection cases in 16 provinces of China from 2009 to 2023
Aili CUI ; Baicheng XIA ; Zhen ZHU ; Zhibo XIE ; Liwei SUN ; Jin XU ; Jing XU ; Zhong LI ; Linqing ZHAO ; Xiaoru LONG ; Deshan YU ; Bing ZHU ; Feng ZHANG ; Min MU ; Hui XIE ; Liang CAI ; Yun ZHU ; Xiaoling TIAN ; Bing WANG ; Zhenguo GAO ; Xiaoqing LIU ; Binzhi REN ; Guangyue HAN ; Kongxin HU ; Yan ZHANG
Chinese Journal of Preventive Medicine 2024;58(7):945-951
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.
7.Infection status and molecular types of rhinovirus among cases of acute respiratory tract infections in Luohe City, Henan Province, from 2017 to 2022
Yage WANG ; Baicheng XIA ; Zhibo XIE ; Jin XU ; Yao ZHANG ; Zhibo ZHANG ; Xin SUN ; Haoran WANG ; Huiling WANG ; Zhen KONG ; Jinhua SONG ; Yiding ZHANG ; Yan ZHANG
Chinese Journal of Preventive Medicine 2024;58(4):466-473
Objective:To understand the infection status and molecular types of rhinovirus (RV) among cases of Acute Respiratory Infections (ARIs) in Luohe City, Henan Province, from 2017 to 2022.Methods:From October 2017 to June 2022, clinical and epidemiological data were collected from 2 270 cases of ARIs at Luohe Central Hospital in Henan Province. Throat swab specimens were obtained from these cases. Real-time quantitative polymerase chain reaction (qPCR) was used to screen for RV-positive specimens. Subsequently, the positive samples were subjected to nested reverse transcription polymerase chain reaction (nested RT-PCR) to amplify the full-length VP1 region. Using the MEGA software, along with 169 RV reference strains recommended by the International Committee on Taxonomy of Viruses, a phylogenetic tree was constructed to determine RV types.Results:Among the 2 270 cases of ARIs, there were 1 283 male cases (56.52%). The median age ( Q 1, Q 3) was 3 (1, 6) years, with the population under 5 years old accounting for 68.59% (1 557/2 270). RV was detected in 137 cases (6.04%), of which 68 cases (49.64%) showed co-detection with other viruses, with the most common being co-detection with enterovirus, accounting for 14.60% (20/137). The RV detection rates in the age groups of 0-4 years, 5-14 years, 15-59 years, and≥60 years were 6.42% (100/1 557), 4.69% (21/448), 3.80% (6/158), and 9.35% (10/107), respectively, with no statistically significant differences ( χ2=5.310, P=0.150). The overall detection rates of RV before (2017-2019) and during (2020-2022) the COVID-19 pandemic showed no statistically significant difference ( χ2=1.823, P=0.177). A total of 109 VP1 sequences were obtained, including 62 types. Among them, RV-A, RV-B, and RV-C had 42, 3, and 17 types respectively. Conclusion:RV is one of the predominant pathogens in ARIs cases in Luohe City, Henan Province, from 2017 to 2022. Multiple types of RV co-circulate without any apparent dominant type.
8.Epidemiological characteristics of human respiratory syncytial virus among acute respiratory infection cases in 16 provinces of China from 2009 to 2023
Aili CUI ; Baicheng XIA ; Zhen ZHU ; Zhibo XIE ; Liwei SUN ; Jin XU ; Jing XU ; Zhong LI ; Linqing ZHAO ; Xiaoru LONG ; Deshan YU ; Bing ZHU ; Feng ZHANG ; Min MU ; Hui XIE ; Liang CAI ; Yun ZHU ; Xiaoling TIAN ; Bing WANG ; Zhenguo GAO ; Xiaoqing LIU ; Binzhi REN ; Guangyue HAN ; Kongxin HU ; Yan ZHANG
Chinese Journal of Preventive Medicine 2024;58(7):945-951
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.
9.Effect of four-quadrant pre-positioning method in assisting the establishment of percutaneous nephrolithotomy access
Xiaoju DING ; Zhibo JIN ; Junfu YANG ; Zhankui JIA ; Jinjian YANG
Chinese Journal of Urology 2024;45(12):918-924
Objective:To investigate the effect of using " Four-Quadrant Pre-Positioning Method" combined with synchronous CT imaging to assist color doppler ultrasound in establishing an ideal puncture access for percutaneous nephrolithotomy (PCNL).Methods:A retrospective analysis was conducted on 113 patients with renal stones treated at the First Affiliated Hospital of Zhengzhou University from May 2021 to July 2023. Patients were divided into two groups based on the surgical method: the study group and the control group. The study group consisted of 64 patients who, from June 2022 to July 2023, underwent PCNL with the assistance of the four-quadrant pre-positioning method and color doppler ultrasound for puncture point localization. The control group consisted of 49 patients who underwent PCNL from May 2021 to May 2022. Based on the distribution of stones, both groups were further divided into three subgroups: subgroup 1: single renal pelvis or single renal calyx stones (study group: 27 patients, control group: 20 patients). Stone length was (34.27±7.69) mm vs. (39.77±11.34) mm, respectively. Subgroup 2: renal pelvis combined with a single renal calyx stone, or multiple stones in more than two renal calyces (study group: 19 patients, control group: 15 patients). Stone length was (45.77±9.50) mm vs.(40.94±11.34) mm, respectively. Subgroup 3: staghorn or cast stones (study group: 20 patients, control group: 17 patients). Stone length was (60.03±11.59) mm vs. (58.41±15.01) mm, respectively. There were no significant differences in gender, age, height, weight, side of the stone, stone length, or stone CT values between the subgroups ( P>0.05).The use of four-quadrant pre-positioning method results from multi-slice spiral CT imaging and the patient's anatomical characteristics. The 12th rib apex is taken as the origin, and the body's transverse and longitudinal axes are defined as the X and Y axes, respectively, to create the " Four Quadrants." The ideal puncture point is located within these quadrants. During the procedure, based on surface markings of the 12th rib apex, the " Four Quadrants" and ideal puncture point are identified on the patient's body surface, assisting the color doppler ultrasound in guiding the establishment of the puncture access. The puncture access establishment time, puncture first calyx success rate (criteria: for single renal pelvis or calyx stones, the first puncture access should achieve a stone-free rate >90%; for multiple renal calyx stones or staghorn stones, the first puncture access should achieve a stone-free rate >50%), surgical time, intraoperative blood loss, stone-free rate, and postoperative complications were compared between the study and control groups in each subgroup. Results:In subgroup 1, the puncture access establishment time was (4.74±2.25) minutes in the study group vs. (7.00±3.13) minutes in the control group ( P=0.006). In subgroup 2, the puncture access establishment time was (6.94±2.12) minutes in the study group vs. (9.80±2.83) minutes in the control group ( P=0.002), with the first calyx success rate being 94.7% (18/19) in the study group vs. 60.0% (9/15) in the control group ( P=0.028). The surgical time was (97.68±26.22) minutes vs. (136.29±33.00) minutes ( P=0.001).In subgroup 3, the puncture access establishment time was (8.00±2.69) minutes in the study group vs. (12.59±3.54) minutes in the control group ( P=0.001), with the first calyx success rate being 100.0% (20/20) in the study group vs. 76.5% (13/17) in the control group ( P=0.036). Intraoperative blood loss was (238.00±176.74) ml vs. (388.57±219.89) ml ( P=0.043). No significant differences were found between the two groups in terms of immediate postoperative stone-free rate (subgroup 1: 92.6% (25/27) vs. 95.0% (19/20), P=0.739; subgroup 2: 78.9% (15/19) vs. 73.3% (11/15), P=1.000; subgroup 3: 75.0% (15/20) vs. 70.5% (12/17), P=0.703) or complication rates (subgroup 1: 25.9% (7/27) vs. 25.0% (5/20), P=0.943; subgroup 2: 26.3% (5/19) vs. 40.0% (6/15), P=0.475; subgroup 3: 40.0% (8/20) vs. 41.2% (7/17), P=1.000). Conclusions:The four-quadrant pre-positioning method effectively assists in the use of color doppler ultrasound to establish an ideal puncture access during PCNL, reducing puncture access establishment time and improving the rationality of the puncture path. It also significantly reduces intraoperative blood loss, particularly for complex renal stones such as those in multiple renal calyces or staghorn stones, thereby enhancing the safety of the procedure.
10.Characteristics of hemagglutinin-neuraminidase gene of human parainfluenza virus type 3 among patients with acute respiratory tract infection in Henan Province
Minghua SENG ; Sheng ZHAO ; Kaichao YANG ; Naiyue HU ; Zhibo ZHANG ; Jin XU ; Yonghao GUO
Chinese Journal of Microbiology and Immunology 2023;43(4):265-270
Objective:To analyze the molecular characteristics of hemagglutinin-neuraminidase (HN) gene of human parainfluenza virus type 3 (HPIV3) among the cases with acute respiratory tract infection (ARI) in Henan Province.Methods:Nasal/throat swab samples collected from patients with severe acute respiratory tract infection (SARI) in Luohe and patients with influenza-like illness (ILI) in Zhengzhou were used in this study. HPIV nucleic acids in the samples were detected using real-time fluorescent PCR. HPIV3-positive samples were subjected to RT-PCR for the amplification of HN genes and the sequences were analyzed with Sanger method. CExpress and MEGA7.0 software were used for sequences editing, evolution tree construction and gene sequence analysis.Results:A total of 374 throat swab samples collected form ARI cases in Luohe and Zhengzhou were tested and 20 (5.3%) of them were positive for HPIV3. Eighteen HPIV3 HN gene sequences were successfully amplified and all belonged to C3 subgroups, including 16 sequences of C3f genotype and two sequences of C3a genotype. The 18 HN gene sequences shared the homology of 97.6%-100.0% in nucleotide and 99.3%-100.0% in amino acid, but the differences between them and the prototype strain Wash/47885/57 were significant. There were 12 amino acid mutations shared by them, including four function-related mutations (H295Y, I391V, D556N and I53T). There were no significant differences in the nucleotide or amino acid sequences as compared with the epidemic strain of China/BCH4210A/2014.Conclusions:The C3f and C3a branches of HPIV3 were the epidemic genotypes in Henan Province in recent years and a local circulating prevalence might be established. Continuous and in-depth monitoring of HPIV3 C3 subtype would be of great significance for the prevention and control of HPIV3-associated diseases.

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