Objective To use imaging features of pulmonary nodules to predict the risk of lymph node metastasis in patients with cT1-stage non-small cell lung cancer (NSCLC), providing a reference for clinical decision-making. Methods A retrospective analysis was conducted on the imaging features and postoperative pathological results of cT1 NSCLC patients who underwent surgical treatment at Linyi People’s Hospital from July 2019 to July 2022. Patients were grouped and analyzed according to lymph node metastasis status. Results A total of 1 123 patients were included, comprising 471 males and 652 females, with a median age of 59 (52, 66) years. Comparative analysis revealed that sex, age, nodule location, nodule size on imaging, solid component size, consolidation tumor ratio (CTR), average CT value, and tumor proximity to the pleura all influenced lymph node metastasis. A nomogram was constructed, indicating that the probability of lymph node metastasis in cT1 NSCLC was positively correlated with solid component size, CTR, and average CT value of the pulmonary nodule, and negatively correlated with patient age. The area under the receiver operating characteristic curve was 0.929. Conclusion For cT1 NSCLC patients, the probability of lymph node metastasis can be predicted by measuring the solid component size, CTR, and average CT value of the pulmonary nodule, in conjunction with patient age. However, relying solely on pulmonary nodule imaging characteristics is insufficient to determine a specific lymph node dissection strategy.

Objective:To explore the risk factors for recurrence of intussusception in children after successful ultrasound-guided saline enema reduction.Methods:The clinical and follow up data of 355 hospitalized children with intussusception at the First Affiliated Hospital of Zhengzhou University from Feb 2018 to Feb 2023 were reviewed.Patients were divided into two groups by recurrence develped and the differences were compared, Data with significant differences were incorporated into multi-factor logistic analysis.Results:The overall recurrence rate was 15.8% (56/355). By univariate variable analysis model, there were statistically significant differences between the two groups in age, previous intussusception history, vomiting, maximum diameter of concentric circles shown by ultrasound, and concurrent bowel organic diseases (lead points) (all P<0.05). In multivariate Logistic regression model, age, previous intussusception history, maximum diameter of concentric circles, and lead points were independent risk factors for recurrent intussusception after saline enema.The optimal cut-off values for age and maximum diameter of concentric circles were 2 years and 33.5 mm, respectively, according to ROC curve analysis. Conclusion:Age older than 2 years, previous intussusception history, maximum diameter of concentric circles longer than 33.5 mm, and lead points are independent risk factors for recurrence after saline enema.

Objective:To explore the effects of ropivacaine ultrasound-guided serratus anterior plane block anesthesia on analgesia, oxygen metabolism and postoperative cognitive function in patients undergoing radical mastectomy.Methods:The study subjects were 110 patients with breast cancer treated in hospital from Sep. 2020 to Dec. 2023. They were divided into the control group ( n=55, general anesthesia) and the study group ( n=55, general anesthesia + ultrasound-guided serratus anterior plane block anesthesia) by random odd-even criteria. The analgesic effect, the level of oxygen metabolism index before and after operation, postoperative cognitive function and the occurrence of adverse reactions were compared. Results:The intraoperative dosage of sufentanil, remifentanil and propofol, and the number of analgesic pump compression within 48h in the study group were lower [ (241.82±19.82) μg, (581.42±52.77) mg, (107.22±9.81) μg, (3.47±1.02) times vs. (271.22±24.87) μg, (638.91±63.79) mg, (121.48±10.84) μg, (5.81±1.35) ], and the first time of postoperative analgesia pump was higher [ (7.59±1.44) h vs. (5.05±1.24) h], with statistically significant differences ( t=6.86, 5.15, 7.23, 10.26, 9.80; P<0.05). The visual analog scores in the study group were lower at 1h, 4h and 8h after surgery [ (1.11±0.25) points, (1.89±0.54) points, (1.65±0.45) points vs. (2.17±0.49) points, (2.68±0.64) points, (2.33±0.64) points], with statistically significant differences ( t=14.29, 7.00, 6.45, P<0.05). The difference of arterial-carotid vein oxygen content between the time of the beginning of operation and 1h after surgery in the study group was lower [ (37.22±2.22) ng/L, (34.89±1.86) ng/L vs. (42.77±2.05) ng/L, (42.77±2.05) ng/L], while carotid venous blood oxygen content and cerebral oxygen uptake rate were higher [ (94.32±2.78) ng/L, (97.39±2.64) ng/L, (37.26±2.31) %, (44.76±2.54) % vs. (81.82±1.35) ng/L, (89.53±2.04) ng/L, (42.86±2.06) %, (47.58±2.15) %], with statistically significant differences ( timmediately after the surgery =6.81, 8.12, 10.26, t1h after the surgery =12.54, 7.34, 10.54; P<0.05) ; The cognitive function scores in the study group at 1 and 7 days after surgery were higher [ (24.78±2.59) points, (26.35±1.84) points vs. (20.36±2.14) points, (24.66±1.57) points], with statistically significant differences ( t=9.76, 5.18, P<0.05). The incidence of adverse reactions was 5.46% in the study group and 18.18% in the control group, and the difference was statistically significant ( χ2 value=4.27, P<0.05) . Conclusion:Ropivacaine ultrasound-guided serratus anterior plane block anesthesia can improve the analgesic effect of breast cancer patients, ensure the balance of oxygen metabolism in brain tissue, and reduce the cognitive function damage of patients, and has excellent clinical application value.

Hepatic encephalopathy (HE) is one of the severe complications of decompensated stage cirrhosis that causes cerebral dysfunction due to hepatic insufficiency and/or portosystemic shunts, and it usually manifests as a wide spectrum of neurological or psychiatric abnormalities ranging from subclinical alterations to coma. The pathogenesis of HE is complex, although ammonia toxicity, oxidative stress, inflammation, intestinal dysbiosis, and others among them mainly play an important role. The treatment for HE lacks specific drugs, and the current available drugs include non-absorbable disaccharides (lactulose), antibiotics (rifaximin), and other therapies (oral branched-chain amino acids, intravenous injection of L-ornithine-L-aspartic acid, probiotics). Recent research has shown that human albumin is a safe and effective treatment for HE, improving not only cognitive function but also enhancing patients' quality of life.

Chronic hepatitis B (CHB) is one of the major public health problems worldwide. The potential immunological mechanisms of hepatitis B virus (HBV) infection has not yet been clearly studied. Single-cell RNA sequencing (scRNA-seq) technology, as an emerging sequencing method in recent years, can provide a high-throughput view of the whole transcriptome at the single-cell level, reveal subtle changes in transcriptional profiles of immune cells during the course of chronic hepatitis B, and provide technological support for exploring the immunopathogenesis and potential therapeutic targets for CHB. This article summarizes the research progress conducted on scRNA-seq technology in order to provide novel therapeutic ideas for the immunological characteristics of chronic hepatitis B.

Objective To study the antifungal activity of a new series of triazole compounds with n-propyl side chain and disubstituted benzyl structure. Methods Eleven target compounds were designed and synthesized. The structures were confirmed by ¹H NMR, and some compounds were confirmed by ¹³C NMR or HRMS. Three fungal strains were selected as experimental strains, and the antifungal activity was tested in vitro according to the standardized antifungal sensitivity test method recommended by National Committee for Clinical Laboratory Standards (NCCLS). Results Compound B11 showed better activity against candida albicans SC5314 than fluconazole and was comparable to posaconazole; Compounds B10, B11 and B4 showed better activity against cryptococcus neoformanis H99 than fluconazole, while compounds B2, B3, B5, B6 and B7 showed similar activity to fluconazole against cryptococcus neoformanis H99; while all compounds showed poor activity against aspergillus fumigatus. Conclusion Some of the target compounds with n-propyl side chain and disubstituted benzyl group structure had certain antifungal activity and could be identified as potential lead antifungal drugs.

Objective    To evaluate the effectiveness and safety of proximal aortic repair (PAR) versus total arch replacement (TAR) for treatment of acute type A aortic dissection (ATAAD). Methods     An electronic search was conducted for clinical controlled studies on PAR versus TAR for patients with ATAAD published in Medline via PubMed, EMbase, The Cochrane Library, Web of Science, Wanfang Database and CNKI since their inception up to April 30, 2022. The quality of each study included was assessed by 2 evaluators and the necessary data were extracted. STATA 16 software was used to perform statistical analysis of the available data. Results    A total of 28 cohort studies involving 7 923 patients with ATAAD were included in this meta-analysis, of whom 5 710 patients received PAR and 2 213 patients underwent TAR, and 96.43% of the studies (27/28) were rated as high quality. The meta-analysis results showed that: (1) patients who underwent PAR had lower incidences of 30 d mortality [RR=0.62, 95%CI (0.50, 0.77), P<0.001], in-hospital mortality [RR=0.64, 95%CI (0.54, 0.77), P<0.001], and neurologic deficiency after surgery [RR=0.84, 95%CI (0.72, 0.98), P=0.032] than those who received TAR; (2) the cardiopulmonary bypass time [WMD=–52.07, 95%CI (–74.19, –29.94), P<0.001], circulatory arrest time [WMD=–10.14, 95%CI (–15.02, –5.26), P<0.001], and operation time [WMD=–101.68, 95%CI (–178.63, –24.73), P<0.001] were significantly shorter in PAR than those in TAR; (3) there was no statistical difference in mortality after discharge, rate of over 5-year survival, renal failure after surgery and re-intervention, volume of red blood cells transfusion and fresh-frozen plasma transfusion, or hospital stay between two surgical procedures. Conclusion     Compared with TAR, PAR has a shorter operation time and lower early and in-hospital mortality, but there is no difference in long-term outcomes or complications between the two procedures for patients with ATAAD.

Objective To investigate the pathogenesis of superficial mycosis among naval trainees, and observe the efficacy of a novel antifungal drug. Methods A questionnaire survey was conducted on the onset, medication and recurrence of superficial fungal infection among the trainees from January, 2020 to July, 2020. At the same time, the new antifungal drug sulconazole nitrate spray was provided for treatment and the drug efficacy was observed. Results The participants generally lacked understanding and attention to superficial fungal infections. The incidence rate of superficial fungal infection was 52%, of which 76.2% of patients had recurrence of superficial fungal infection. The sulconazole nitrate spray showed great effect against these infections. Conclusion The trainees should understand the causes of superficial fungal infection through health education and seek medical treatment and medication in time. The cure rate of superficial fungal infections could only be improved through the collaborative management of the school, hospital, and trainees to reduce the impact of these infections on naval trainees’ work and life.

Objective:To investigate the diagnostic value of prenatal MRI in the detection of abnormal placental cord insertions (APCIs) comparing with prenatal ultrasound and pathological examination.Methods:A retrospective data collection was conducted on 440 patients who underwent both prenatal placental ultrasound and MRI at the Foshan Women and Children Hospital from December 2013 to December 2021. Among them, 37 cases were APCIs confirmed by surgery or pathology. The prenatal placental MRI findings were analyzed and compared with prenatal ultrasound diagnosis. The diagnostic efficacy of prenatal MRI and ultrasound in diagnosing APCIs was calculated.Results:Among the 37 cases of APCIs confirmed by surgery or pathology, 17 cases had marginal cord insertion (MCI), 13 cases had velamentous cord insertion (VCI), 5 cases had vasa previa (VP), and 2 cases had VCI combined with VP. The sensitivity and specificity of ultrasound diagnosis for APCIs were 59.5% (22/37) and 97.8% (394/403), respectively. The sensitivity and specificity of MRI diagnosis for APCIs were 86.5% (32/37) and 98.5% (397/403), respectively. Among the 37 cases of APCIs, prenatal MRI missed diagnosis of 2 cases of MCI, 2 cases of VCI, and misdiagnosed 1 case of VCI as an accessory placenta. MRI identified 10 cases of APCIs missed by ultrasound, including 5 cases of MCI, 2 cases of VP, 2 cases of VCI, and 1 case of combined VCI with VP. Additionally, ultrasound misdiagnosed 4 cases of APCIs, including 2 cases of VCI misdiagnosed as MCI and 2 cases of MCI misdiagnosed as VCI.Conclusions:For APCIs complicated with abnormalities of placental location or morphology, or placental accretion spectrum disease in late pregnancy, MRI has a higher diagnostic efficacy than ultrasound.

Objective    To assess the feasibility and safety of ultra-micro 5 mm single-port endoscopic thoracic sympathicotomy in selected patients with primary palmar hyperhidrosis. Methods    From March 1, 2018 to February 1, 2021, 90 patients with primary palmar hyperhidrosis who underwent ultra-micro 5 mm single-port endoscopic thoracic sympathicotomy at the Thoracic Surgery Department of the University of Hong Kong-Shenzhen Hospital. There were 47 males and 43 females, with a median age of 26.0 (22.0, 31.0) years. During the operation, T3 and/or T4 thoracic sympathetic nerve chain was transected using an ultra-micro 5 mm single-port incision near the areola or under the axilla. The surgical data of the patients were retrospectively reviewed and analyzed. Results     All patients successfully completed the operation without major bleeding during the operation and no conversion to thoracotomy. There was no death or serious complication during the perioperative period. The operation time was 43.0 (23.0, 60.0) min, and the intraoperative blood loss was 2.0 (1.0, 2.0) mL. In the perioperative period, only one patient needed a tiny chest tube indwelling. The symptoms of hyperhidrosis on the hands all disappeared after the operation. The pain score on the postoperative day was 2.0 (2.0, 2.0) points. The hospital stay after surgery was 1.0 (1.0, 1.0) d. In the first month after the operation, the symptoms of hyperhidrosis on the hands were significantly relieved compared with those before the operation. The surgical incisions healed well, the wounds were concealed, and there was no wound infection or poor healing. The patients' satisfaction with the surgical incisions was 100.0%. After the operation, 14 (15.6%) patients had mild compensatory hyperhidrosis, 5 (5.6%) patients had moderate compensatory hyperhidrosis, and no patient had severe compensatory hyperhidrosis. Overall satisfaction rate was 94.0%. Conclusion     The clinical application of ultra-micro 5 mm single-port endoscopic thoracic sympathicotomy in selected patients with primary palmar hyperhidrosis is safe and feasible. The surgical wound is extremely small and hidden, the operation time is short, the pain is very slight, and the clinical outcome is good. It can fully meet the patients' pursuit of beauty.