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find Author "YANG Ying" 11 results
  • Effectiveness of surgical treatment on colonic Crohn’s disease

    ObjectiveTo elucidate the characteristics of colonic Crohn’s disease (CD) and evaluate effectiveness of surgical treatment.MethodClinical data of 28 cases with colonic CD who underwent surgery at West China Hospital of Sichuan University between Feb. 2009 and Jan. 2017 were retrospectively analyzed.ResultsDefinite diagnosis of colonic CD was performed in 12 cases preoperatively (42.9%), but 16 cases (57.1%) were misdiagnosed as other disease, ulcerative colitis (5 cases, 17.9%), tumor (4 cases, 14.3%), appendiceal disease (4 cases, 14.3%), and intestinal tuberculosis (3 cases, 10.7%) were the major causes of preoperative misdiagnosed disease. Of the 28 cases, elective surgery was performed in 26 cases and emergency surgery in 2 cases. The major surgical procedures were segmental colectomy(10 cases) and right hemicolectomy (6 cases), as well as ilecolostomy (9 cases), colocolostomy(6 cases), ileostomy(9 cases), colostomy (6 cases), and so on. The length of the first hospital stay of operation related to intestinal lesions in this group was 5–74 d (mean of 25.4 d). Postoperative complications were occurred in 9 cases (32.1%), all these cases didn’t receave medical treatment. Twenty cases were followed up, and the follow-up time was 7–78 months (mean of 33.4 months), 8 cases lost follow-up. The prognosis of the follow-up cases was good.ConclusionsColonic CD has occult clinical manifestation, resulting in misdiagnosis and mistreatment. Segmental resection of the colon is the important treatment for colonic CD. For patients with complications, multidisciplinary diagnosis and treatment is necessary. In addition, systematic medical treatment before surgery helps to reduce the risk of the first surgery associated with intestinal lesions.

    Release date:2020-07-26 02:35 Export PDF Favorites Scan
  • A gait signal acquisition and parameter characterization method based on foot pressure detection combined with Azure Kinect system

    The gait acquisition system can be used for gait analysis. The traditional wearable gait acquisition system will lead to large errors in gait parameters due to different wearing positions of sensors. The gait acquisition system based on marker method is expensive and needs to be used by combining with the force measurement system under the guidance of rehabilitation doctors. Due to the complex operation, it is inconvenient for clinical application. In this paper, a gait signal acquisition system that combines foot pressure detection and Azure Kinect system is designed. Fifteen subjects are organized to participate in gait test, and relevant data are collected. The calculation method of gait spatiotemporal parameters and joint angle parameters is proposed, and the consistency analysis and error analysis of the gait parameters of proposed system and camera marking method are carried out. The results show that the parameters obtained by the two systems have good consistency (Pearson correlation coefficient r ≥ 0.9, P < 0.05) and have small error (root mean square error of gait parameters is less than 0.1, root mean square error of joint angle parameters is less than 6). In conclusion, the gait acquisition system and its parameter extraction method proposed in this paper can provide reliable data acquisition results as a theoretical basis for gait feature analysis in clinical medicine.

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  • Diagnostic Efficiency of Pleura Biopsy and Partial Pleura Cryobiopsy viaElectronic Bronchoscope in Exudative Pleural Effusion

    Objective To explore the clinical value of pleura biopsy and partial pleura cryobiopsy via electronic bronchoscope in diagnosis of unknown exudative pleural effusion. Methods Diagnostic results of 563 patients with unknown exudative pleural effusion were analyzed retrospectively. Bronchoscope and routine pleura biopsy were performed in 187 patients. Bronchoscope and routine pleura biopsy plus partial pleura cryobiopsy were performed in 376 patients. Pathological positive rates of the two groups were compared. Results In the 187 patients examined by bronchoscope and routine pleura biopsy from 2006 to 2008, 161 patients obtained pathological positive results ( 86.1% ) . In the 376 patients examined by bronchoscope and routine pleura biopsy plus partial pleura cryobiopsy from 2009 to 2012, 354 patients acquired pathological diagnosis ( 94.1% ) . There was significant difference between the two groups ( P lt; 0.05) . The main complications were bleeding and local chest pain, and they can be controlled easily. Conclusions Electronic bronchoscope and pleura biopsy can obtain high detection rate of nearly 90% in diagnosis of unknown exudative pleural effusion especially when combined with cryobiopsy of partial pleura. Electronic bronchoscope combined with pleura biopsy or cryobiopsy is an alternative in clinical settings when thoracoscope is unavailable.

    Release date:2016-09-13 03:53 Export PDF Favorites Scan
  • Autologous Stem Cell Transplantation after High-dose Chemotherapy in First-line Treatment of Follicular Lymphoma: A Meta-analysis

    Objective To assess the effectiveness and safety of autologous stem cell transplantation after high-dose chemotherapy in first-line treatment of follicular lymphoma. Method Randomized controlled trials (RCTs) of autologous stem cell transplantation after high-dose chemotherapy in first-line treatment of follicular lymphoma were collected from MEDLINE (1990-2009), EMBASE (1990-2009), OVID (1990-2009), and the Cochrane Library (Issue 2, 2009), and the proceedings of ASH were searched manually. The methodological quality of included studies was evaluated, and data analysis was performed with software STATA 10.0 and RevMan 4.3. Result A total of 4 RCTs involving 941 patients were included. The results of meta-analysis showed that overall survival rate (HR=0.82, 95%CI 0.49 to 1.15), event-free survival rate (HR=0.35, 95%CI 0.24 to 0.47), total remission rate (RR=0.35, 95%CI 0.96 to 1.30), and secondary malignant tumor incidence rate (RR=1.68, 95%CI 0.47 to 6.07). Conclusion According to the present evidences, autologous stem cell transplantation after high-dose chemotherapy can not improve overall survival rate and total remission rate, but can improve event-free survival rate, and do not increase secondary malignant tumor incidence rate. However, more high-quality, multiple-center, large-sample randomized controlled trials are required.

    Release date:2016-09-07 11:12 Export PDF Favorites Scan
  • Salpingectomy before IVF-ET for Hydrosalpinx among Chinese Women: A Systematic Review

    Objective To assess the necessity and effectiveness of salpingectomy before IVF-ET for hydrosalpinx among Chinese infertile patients. Methods The relevant papers published from 2000 to December of 2010 in China were electronically searched in CBM, VIP and CNKI to collect randomized controlled trials (RCTs) involving Chinese hydrosalpinx women with or without salpingectomy before IVF-ET. The quality of the included trials was independently assessed by two reviewers, and the data were extracted and analyzed by RevMan 5.0 software. Results Nine RCTs involving 687 patients and 730 IVF-ET cycles were identified. The results of meta-analyses showed that: a) There were significant differences between the two groups in Gn dosage (WMD=1.23, 95%CI 0.17 to 2.30, P=0.02), fertilization rate (RR=1.07, 95%CI 1.02 to 1.13, P=0.006), cleavage rate (RR=1.05, 95%CI 1.00 to 1.09, P=0.03), clinical pregnancy rate (RR=1.92, 95%CI 1.41 to 2.61, Plt;0.000 1), and abortion rate (RR=0.34, 95%CI 0.13 to 0.86, P=0.002); and b) There were no significant differences between the two groups in days of Gn (WMD= –0.27, 95%CI –0.59 to 0.06, P=0.11), E2 in HCG day (WMD=59.15, 95%CI –9.61 to 127.91, P=0.09), number of eggs (WMD= –0.27, 95%CI –0.44 to 0.99, P=0.46), quality embryonic rate (RR=1.02, 95%CI 0.91 to 1.14, P=0.79), and ectopic pregnancy rate (RR=0.22, 95%CI 0.03 to 1.82, P=0.16). Conclusion The current evidence shows that salpingectomy before IVF-ET for hydrosalpinx Chinese hydrosalpinx patients is necessary and effective. For the low quality of methodology of the included studies, more reasonably-designed and double-blind RCTs with large sample are required to provide more high-quality proof.

    Release date:2016-09-07 11:07 Export PDF Favorites Scan
  • Efficacy of Qiliqiangxin capsule for heart failure with preserved ejection fraction on cardiac function: a systematic review

    ObjectivesTo systematically review the efficacy of Qiliqiangxin capsule on cardiac function in patients with heart failure with preserved ejection fraction (HFpEF).MethodsCNKI, VIP, WanFang Data, CBM, EMbase, PubMed and The Cochrane Library databases were electronically searched to collect randomized controlled trials (RCTs) of Qiliqiangxin capsule for HFpEF from inception to August 1st, 2020. Two reviewers independently screened literature, extracted data and assessed risk of bias of included studies. Meta-analysis was performed by RevMan5.3 software.ResultsA total of 24 RCTs involving 2 021 patients were included. The results of meta-analysis showed that Qiliqiangxin capsule combined with conventional western medicine could improve E/A wave ratio (MD=0.17, 95%CI 0.13 to 0.21, P<0.000 01), reduce E/e' wave ratio (MD=−2.16, 95%CI −3.23 to −1.08, P<0.000 1), BNP (MD=−240.43, 95%CI −357.66 to −123.20, P<0.000 1), and NT-proBNP (MD=−200.64, 95%CI −290.02 to −111.27, P<0.000 1). However, there were no statistically significant differences between two groups in re-hospitalization rate (RR=0.57, 95%CI 0.27 to 1.19, P=0.13), mortality (RR=0.33, 95%CI 0.04 to 3.05, P=0.33), and incidence of adverse events (RR=0.59, 95%CI 0.26 to 1.34, P=0.20).ConclusionsThe present evidence shows that Qiliqiangxin capsule combined with conventional western medicine can improve neuroendocrine disorders and cardiac structure in patients with HFpEF, and further improve cardiac diastolic function. Due to limited quality and quantity of the included studies, more high quality studies are required to verify above conclusions.

    Release date:2021-01-26 04:48 Export PDF Favorites Scan
  • Xinmailong injection in the treatment of heart failure with different types of ejection fraction: a systematic review

    ObjectiveTo systematically review the efficacy and safety of Xinmailong injection in the treatment of different types of heart failure with ejection fraction.MethodsCNKI, WanFang Data, VIP, CBM, PubMed, EMbase and The Cochrane Library databases were electronically searched to collect randomized controlled trials (RCTs) of Xinmailong injection in the treatment of different types of heart failure with ejection fraction from inception to August 5th, 2020. Two reviewers independently screened literature, extracted data and assessed risk of bias of included studies. Meta-analysis was then performed using RevMan 5.3 software.ResultsA total of 25 RCTs involving 2 467 patients were included. The results of meta-analysis showed that Xinmailong injection combined with conventional therapy was superior to conventional therapy alone on NYHA classification efficiency (HFrEF: RR=1.32, 95%CI 1.04 to 1.69, P=0.02), comprehensive clinical efficacy (HFrEF: RR=1.24, 95%CI 1.15 to 1.34, P<0.000 01; HFpEF: RR=1.22, 95%CI 1.15 to 1.30, P<0.000 01), score of life quality (HFrEF: MD=−7.08, 95%CI −9.34 to −4.82, P<0.000 01), left ventricular ejection fraction (HFrEF: MD=4.99, 95%CI 3.18 to 6.80, P<0.000 01; HFpEF: MD=5.10, 95% CI 0.62 to 9.58, P=0.03), the level of B-type natriuretic peptide (HFrEF: SMD=−0.96, 95%CI −1.36 to −0.56, P<0.000 01; HFpEF: SMD=−1.83, 95%CI−2.35 to −1.31, P<0.000 01), the level of N-terminal pro-B natriuretic peptide (HFrEF: SMD=−2.98, 95%CI −4.45 to −1.51, P<0.000 1), and 6-minute walking distance (HFrEF: MD=52.56, 95%CI 34.22 to 70.90, P<0.000 01). There was no significant difference in drug-related adverse reactions between two groups.ConclusionsCurrent evidence shows that Xinmailong injection combined with conventional therapy have good efficacy and safety in the treatment of heart failure with different ejection fractions. Due to limited quality and quantity of the included studies, more high quality studies are required to verify above conclusions.

    Release date:2021-05-25 02:52 Export PDF Favorites Scan
  • The phenotype study of KCNQ2 gene related epilepsy

    ObjectiveTo study the phenotype of children with KCNQ2 gene related epilepsy.MethodsForty epilepsy children who were detected with KCNQ2 gene variants were enrolled. Their genotype and phenotype were analyzed.ResultsThirty-six KCNQ2 variants were identified. Twenty variants were novel. Twelve patients had inherited variants, and 28 patients had de novo variants. The age of seizure onset was from one day to 9 months. 80.0% patients had their seizure onset in neonates (32/40). Multiple seizure types were observed. Focal seizure was observed in 38 patients (95.0%). Epileptic spasm was observed in 10 patients (25.0%). Myoclonic seizure was observed in 4 patients. Tonic spasm seizure was observed in 3 patients. In all patients, seizures manifested in clusters. In 28 patients with de novo KCNQ2 variants, 24 had development delay (85.7%), the other 4 patients had normal development. In 12 patients with inherited KCNQ2 variants, one had development delay, the other 11 patients had normal development (91.7%). The most common interictal EEG changes were local epilepsy discharges (31/40). The MRI of brain was abnormal in 14 patients with de novo KCNQ2 variants and developmental delay. The agenesis of corpus callosum was identified in 10 patient (25.0%). Enlargement of subarachnoid spaces in the frontal and temporal region was identified in 11 patients (27.5%). Cortial dysplasia in the bilateral frontal and temporal region was identified in 2 patients. Sulus deepening was identified in 4 patients. Enlargement of bilateral lateral ventricle was identified in 3 patients. In 40 patients with KCNQ2 variants, 3 were diagnosed as benign familial neonatal epilepsy (BFNE), 2 were diagnosed as benign familial neonatal-infantile epilepsy (BFNIE), 3 were benign familial infantile epilepsy (BFIE), 3 were benign infantile epilepsy (BIE), 5 were benign neonatal epilepsy (BNE), 3 wer Ohtahara syndrome (OS), 9 were West syndrome (WS), 12 were unclassified early infantile epileptic encephalopathy (EIEE), one was epilepsy with autism. Sodium channel blockers oxcarbazepine was the most effective among antiepileptic drugs, with a effective rate of 90.9%.ConclusionsMost KCNQ2 variants are missense variants. De novo variants are more common in patients with KCNQ2 variants. The clinical features of patients with KCNQ2 variants including that mainly with seizure onset in neonate, the main seizure type is focal seizures, seizures occur in clusters. Patients with de novo KCNQ2 variants often had developmental delay, and about half of them had frontal and temporal lobe dysplasia and agenesis of corpus callosum. Sodium channel blockers are effective agents for epilepsy patients with KCNQ2 variants.

    Release date:2019-07-15 02:48 Export PDF Favorites Scan
  • The genotype and phenotype of CACNA1A variants related developmental and epileptic encephalopathy

    ObjectiveTo analyze the genotype and clinical features of children with epilepsy associated with CACNA1A variants. MethodsThe genotype, phenotype and neuroimaging features of 27 patients with CACNA1A variants in the pediatrics department of Peking University First Hospital from September 2013 to February 2022 were analyzed. ResultsThere were 9 males and 18 females, whose age ranged from 6 months to 19 years old (medium: 4 years old and 3 months). There were 22 missense variants, three nonsense variants and two frameshift variants. 25 variants were de novo. Age at seizure onset ranged from 1 day to 8 years old and 6 months (medium: 14 months). Multiple seizure types were observed, including focal seizures in 20 patients, generalized tonic–clonic seizures (GTCS) in 7 patients, absence seizures in 5 patients, myoclonic seizures in 3 patients, epileptic spasms and tonic seizures in 1 patient respectively. 16 patients had status epilepticus, including focal motor status epilepticus in 14 patients and generalized motor status epilepticus occurred in two patients. Two patients had acute encephalopathy. All 27 patients showed developmental delay. Interictal electroencephalogram showed generalized discharges in 8 patients, multi-focal discharges in 4 patients and focal discharges in 11 patients. Unilateral cortical atrophy occurred in 5 patients after focal motor status epilepticus. Two patients had bilateral cerebral atrophy after acute encephalopathy. Cerebellar atrophy in 2 patients. The age of last follow-up ranged from one year old to 17 years old and 3 months. Six patients were seizure-free , whereas 21 still had seizures. ConclusionThe seizure onset age of patients with CACNA1A variants usually began in infancy. The common seizure types include focal seizures, GTCS and absence seizures. Seizures are prone to status epilepticus, mainly focal motor status epilepticus. Patients usually had developmental delay. Unilateral cortical atrophy may occur after focal motor status epilepticus. Epilepsy associated with CACNA1A variants is usually refractory.

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  • Application of high-flow T-tube oxygen therapy in assisting weaning of patients with neurocritical tracheotomy and mechanical ventilation

    Objective To explore the oxygen therapy effects of high-flow T-tube oxygen therapy on neurointensive care patients who have undergone tracheostomy and are undergoing mechanical ventilation while meeting the criteria for weaning from mechanical ventilation, especially in terms of controlling airway temperature and humidity, promoting mucus dilution, and reducing postoperative complications. MethodsCollected data from 50 neurointensive care patients who underwent tracheostomy and were on mechanical ventilation, meeting the criteria for weaning from mechanical ventilation, treated at West China Hospital of Sichuan University from September 2019 to September 2021. The three groups of patients had different weaning methods: a high-flow T-tube for weaning, a heat and moisture exchanger (artificial nose) for weaning, and a high-flow tracheal joint for weaning. The vital signs, dyspnea and blood gas analysis before and three days after weaning were collected. The primary outcomes were mechanical sputum excretion, postural drainage, phlegm-resolving drugs use, airway-related events (artificial airway blockage, artificial nose blockage, lung infection), stay in ICU (days), and death in ICU. Results Among the 50 patients, 28 were males and 22 were females. There were no significant differences in age, weight, height, gender, finger pulse oxygen saturation, heart rate, APACHEII score, sequential organ failure assessment, or Glasgow coma scale among the three groups (P>0.05). There was no statistical difference in the number of 72-hour mechanical sputum excretion or the use of phlegm-resolving drugs in the three groups (P=0.113, P=1.00). Conclusion The use of high-flow T-tube oxygen therapy in neurointensive care patients who have undergone tracheostomy, are on mechanical ventilation, and meet the criteria for weaning from mechanical ventilation can effectively control airway temperature and humidity, promote mucus dilution for better drainage, thereby reducing post-tracheostomy complications.

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