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Objective: To evaluate the efficacy of surgical treatment of aortic coarctation combined with descending aortic aneurysm in adult patients. Methods: This is a retrospective cohort study. Adult patients with aortic coarctation who were hospitalized in Beijing Anzhen Hospital from January 2015 to April 2019 were enrolled. The aortic coarctation was diagnosed by aortic CT angiography, and the included patients were divided into the combined descending aortic aneurysm group and the uncomplicated descending aortic aneurysm group based on descending aortic diameter. General clinical data and surgery-related data were collected from the included patients, and death and complications were recorded at 30 days after surgery, and upper limb systolic blood pressure was measured in all patients at discharge. Patients were followed up after discharge by outpatient visit or telephone call for their survival and the occurrence of repeat interventions and adverse events, which included death, cerebrovascular events, transient ischemic attack, myocardial infarction, hypertension, postoperative restenosis, and other cardiovascular-related interventions. Results: A total of 107 patients with aortic coarctation aged (34.1±15.2) years were included, and 68 (63.6%) were males. There were 16 cases in the combined descending aortic aneurysm group and 91 cases in the uncomplicated descending aortic aneurysm group. In the combined descending aortic aneurysm group, 6 cases (6/16) underwent artificial vessel bypass, 4 cases (4/16) underwent thoracic aortic artificial vessel replacement, 4 cases (4/16) underwent aortic arch replacement+elephant trunk procedure, and 2 cases (2/16) underwent thoracic endovascular aneurysm repair. There was no statistically significant difference between the two groups in the choice of surgical approach (all P>0.05). In the combined descending aortic aneurysm group at 30 days after surgery, one case underwent re-thoracotomy surgery, one case developed incomplete paraplegia of the lower extremity, and one case died; and the differences in the incidence of endpoint events at 30 days after surgery were similar between the two groups (P>0.05). Systolic blood pressure in the upper extremity at discharge was significantly lower in both groups compared with the preoperative period (in the combined descending aortic aneurysm group: (127.3±16.3) mmHg vs. (140.9±16.3) mmHg, P=0.030, 1 mmHg=0.133 kPa; in the uncomplicated descending aortic aneurysm group: (120.7±13.2) mmHg vs. (151.8±26.3) mmHg, P=0.001). The follow-up time was 3.5 (3.1, 4.4) years. There were no new deaths in the combined descending aortic aneurysm group, no transient ischemic attack, myocardial infarction or re-thoracotomy surgery, and one patient (1/15) suffered cerebral infarction and 10 patients (10/15) were diagnosed with hypertension. The differences in the occurrence of endpoint events during postoperative follow-up were similar between the two groups (P>0.05). Conclusion: In experienced centers, long-term prognosis of patients with aortic coarctation combined with descending aortic aneurysm is satisfactory post surgical intervention.
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Male , Humans , Adult , Female , Aortic Coarctation/surgery , Retrospective Studies , Aortic Aneurysm, Abdominal/surgery , Treatment Outcome , Blood Vessel Prosthesis Implantation/adverse effects , Endovascular Procedures/adverse effects , Hypertension/complications , Myocardial Infarction/complications , Aortic Aneurysm, Thoracic/surgeryABSTRACT
Objective:To summarize the clinical data of Sun's procedure(total aortic arch replacement with frozen elephant trunk technique) in the treatment of complex aortic arch disease after previous cardiac surgery.Methods:From January 1, 2018 to December 31, 2020, a total of 55 patients underwent resternotomy Sun's procedure in the Aortic Surgery Center of Beijing Anzhen Hospital, including 41 males and 14 females, with a mean age of(45.4±12.7) years old, were retrospectively analyzed. The indications of primary cardiac surgery included type A aortic dissection, aortic root or ascending aortic aneurysm, heart valve surgery, and coronary heart disease. Indications for reoperation included residual aortic dissection larger than 55 mm in diameter, aortic aneurysm dilation, new type A aortic dissection, anastomotic leakage with symptoms, and pseudoaneurysm. All the operations were performed under general anesthesia and median resternotomy, total aortic arch replacement with the stented elephant trunk implantation and were performed by anterograde unilateral or bilateral cerebral perfusion.Results:There was no intraoperative death, and the postoperative mortality was 9.1%(5/55). The causes of death were 2 cases of low cardiac output, 1 case of respiratory failure, 1 case of cerebral complications, and 1 case of gastrointestinal bleeding. Except death, there were 2 cases of postoperative cerebral complications(2/50, 4%), 5 cases of spinal cord injury(transient paraplegia)(5/50, 10%), the median duration of ventilator use was 17 hours(14-42 h). Other postoperative complications included respiratory insufficiency requiring ventilatory support longer than 48 hours(8/50, 16%), renal insufficiency requiring temporary dialysis(2/50, 4%). The follow-up time was(25.9±11.2) months(10-47 months), during which 1 case died due to cerebral complication, 4 cases underwent total thoracoabdominal aorta replacement, and 1 case underwent anastomotic leakage repair.Conclusion:It is safe and effec to perform Sun's procedure(total aortic arch replacement with frozen elephant trunk technique) in the treatment of complex arch disease after previous cardiac surgery.
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Objective:To assess the differences in multidimensional clinical manifestations between patients with irritable bowel syndrome (IBS) matching the Rome Ⅲ criteria but not matching Rome Ⅳ and IBS patients matching the Rome Ⅳ criteria, among patients diagnosed with IBS according to Rome Ⅲ criteria.Methods:From November 2016 to October 2017, a total of 472 IBS patients admitted to six hospitals were selected, which included Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology (139 cases), Sir Run Run Shaw Hospital, School of Medicine of Zhejiang University (95 cases), the First Affiliated Hospital of Dalian Medical University (96 cases), the Affiliated Hospital of Guizhou Medical University (90 cases), the People′s Hospital of Guangxi Zhuang Autonomous Region (20 cases), and the Second Affiliated Hospital of Xi′an Jiaotong University (32 cases). The 472 IBS patients were divided into the group that matching the Rome Ⅳ criteria (Rome Ⅳ group), and the group that matching the Rome Ⅲ criteria but not matching the Rome Ⅳ criteria (Rome Ⅲ group). The basic characteristics (IBS course, post-infectious IBS, history of smoking or drinking, etc.), abdominal symptoms, and defecation-related symptoms of two groups were compared and analyzed by face-to-face questionnaires. Multi-dimensional clinical manifestations assessment was completed by questionnaires, which included gastrointestinal symptom rating scale (GSRS), irritable bowel syndrome-severity scoring system (IBS-SSS), irritable bowel syndrome-quality of life (IBS-QOL), and hospital anxiety and depression scale (HADS). Independent sample t-test, rank sum test, and chi-square test were used for statistical analysis. Results:There were 344 patients (72.9%) in Rome Ⅳ group and 128 patients (27.1%) in Rome Ⅲ group. The IBS course of patients in Rome Ⅳ group was longer than that in Rome Ⅲ group (3.0 years (7.0 years) vs. 2.0 years (5.7 years)), and the difference was statistically significant ( Z=-2.73, P=0.006). The GSRS scores of loose stools and abdominal pain of IBS patients in Rome Ⅳ group were higher than those in Rome Ⅲ group, and the GSRS scores of increased exhaust and abdominal distension of IBS patients in Rome Ⅳ group were lower than those in Rome Ⅲ group (3.0(2.0) vs. 2.0(4.0), 3.0(2.0) vs.1.0(2.0), 1.5(3.0) vs. 2.0(3.0), 1.0 (3.0) vs. 2.0(3.0)), and the differences were statistically significant ( Z=-2.48, -9.90, -2.11 and -2.06, P=0.013, <0.001, =0.035 and =0.040). The proportions of fatigue and dizziness of IBS patients in Rome Ⅳ group were higher than those in Rome Ⅲ group (58.4% (201/344) vs. 43.0% (55/128), 30.8% (106/344) vs. 29.7% (38/128)), and the differences were statistically significant ( χ2=8.37 and 12.36, P=0.004 and <0.001). The scores of anxiety and depression subscales of the HADS of IBS patients in Rome Ⅳ group were higher than those in Rome Ⅲ group (6.5 (6.8) vs. 6.0 (6.0), 5.0 (6.0) vs. 3.0 (5.0)), and the differences were statistically significant ( Z=-2.58 and -2.40, P=0.010 and 0.017). The scores of IBS-SSS scale, abdominal pain severity, abdominal pain frequency, and impact on quality of life of IBS patients in Rome Ⅳ group were all higher than those in Rome Ⅲ group (249.5 (108.0) vs. 177.0 (111.8), 50.0 (25.0) vs. 20.0 (30.0), 50.0 (70.0) vs. 10.0 (30.0), 66.0 (42.0) vs. 42.5 (34.0)), and the differences were statistically significant ( Z=-7.79, -9.64, -10.65 and -2.48, P<0.001, <0.001, <0.001 and =0.013). The score of IBS-QOL for behavioral disorder of IBS patients in Rome Ⅳ group was lower than that in Rome Ⅲ group (74.5±21.6 vs. 79.2±17.7), and the difference was statistically significant ( t=-2.22, P=0.027). Conclusion:The clinical symptoms of patients mathching the Rome Ⅳ criteria are more typical and severe, as compared with those of IBS patients matching the Rome Ⅲ criteria but not matching the Rome Ⅳ criteria.
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Objective:To explore the clinicopathological characteristics and prognosis of pancreatic gastrointestinal interstitial tumors(pGISTs).Methods:Three cases of pGISTs diagnosed in the Affiliated Tumor Hospital of Guangxi Medical University from August 2015 to October 2019 were analyzed retrospectively. Relevant literatures at home and abroad were searched and reviewed through PubMed, China knowledge Network, Wanfang and VIP databases. The sex, age, tumor size, tumor location, cystic or solid tumor, mode of treatment, mitosis, gene mutation, survival status and survival time were recorded, and the correlation between tumor cystic-solid characteristics and clinicopathological parameters was analyzed. Kaplan-Meier′s method was used to calculate the overall survival (OS) rate and disease-free survival (DFS) rate. Univariate and multivariate Cox regression models were used to analyze the independent risk factors affecting the prognosis of pGISTs.Results:In this group, 3 cases were combined with 71 cases reported in the literature, and a total of 74 cases of pGISTs were included. Among them, 36 cases were male and 38 were female, the age of onset was 55(19-84) years, and the diameter of the tumor was 8 cm(2-35 cm). The tumor location of 71 patients was recorded by literature; 30 cases (42.3%) were located in the head of the pancreas. The solid-cystic characteristics of tumor in 63 patients were recorded by literature, and 33 cases (52.4%) were solid. The mode of treatment of 74 patients was recorded, and 60 cases (81.1%) underwent radical resection. The mitosis figures of 59 patients were recorded, and 33 cases (55.9%) were <5/50 high power field of vision (HPF). The gene mutation of 14 patients was recorded, and 11 cases (78.6%) were c-kit exon gene mutation. Correlation analysis showed that the cystic-solid characteristics of the tumor were significantly correlated with tumor location, tumor diameter and mitosis figures, but not with age, sex, histological type, Ki-67 index and modification National Institutes of Health(mNIH) classification. The 5-year OS rate of 51 patients after radical resection was 88.8%, and the 5-year DFS rate was 60.3%. The 1-year OS rate of patients receiving palliative treatment was 51.9%, and the 1-year fatality rate was 33.3%. Univariate Cox regression analysis showed that male ( P=0.083), mitosis figures >5/50 HPF ( P=0.008)and CD 34 negative ( P=0.055)were risk factors for postoperative recurrence of pGISTs, while multivariate Cox regression analysis showed that mitosis figures >5/50 HPF ( P=0.023)was an independent risk factor for the prognosis of pGISTs. Kaplan-Meier survival analysis showed that patients with mitosis figures ≤5/50 HPF had a higher survival rate ( P=0.0003), but there was no significant difference on prognosis between patients with 10/50 HPF and >10/50 HPF( P=0.3075). Conclusions:pGISTs usually occured in the head of pancreas, and the tumor volume was usually found to be large. The main treatment was radical operation, and the main mutation type was exon mutation of c-kit gene. Nuclear fission image figures >5/50HPF was an independent risk factor for postoperative recurrence.
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Objective To investigate the clinical effect of tenofovir alafenamide fumarate (TAF) on chronic hepatitis B (CHB) patients with low-level viremia (LLV) after entecavir (ETV) treatment. Methods A total of 160 CHB patients who received ETV antiviral therapy in Wuhan Jinyintan Hospital from March 2019 to October 2020 were enrolled and divided into experimental group and control group by propensity score matching, with 80 patients in each group. The patients in the experimental group were given TAF antiviral therapy, and those in the control group were given ETV treatment; the course of treatment was 24 weeks for both groups. The two groups were compared in terms of HBV-DNA clearance rate, HBeAg clearance rate, alanine aminotransferase (ALT) level, estimated glomerular filtration rate (eGFR), FIB-4 value, liver stiffness measurement, and adverse drug reactions after treatment. The t -test was used for comparison of continuous data between two groups, and the chi-square test was used for comparison of categorical data between two groups. Results After 24 weeks of treatment, compared with the control group, the experimental group had significantly higher HBV DNA clearance rate (96.25% vs 16.25%, χ 2 =104.03, P 0.05). Conclusion For CHB patients with LLV after ETV treatment, the change to TAF antiviral therapy can effectively increase their HBV DNA clearance rate and HBeAg clearance rate, improve liver and renal function, and reduce the degree of liver fibrosis, with good safety.
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Objective:To develop an online interactive cytopathological training program, and to evaluate it for improving the cytopathological diagnostic ability of endoscopists in endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) of pancreas.Methods:A total of 5 500 cytopathological images were collected from 194 patients with pancreatic solid mass who underwent EUS-FNA in Nanjing Drum Tower Hospital from August 2018 to August 2019. The cell type in each cytopathological picture was labeled by senior cellular pathologists, which was used to build a learning and testing platform for online interactive cytopathological training. Five endoscopists without cytopathological background were invited to participate in this training. Sensitivity, specificity, positive predictive value and negative predictive value of endoscopists in differential diagnosis of cancer and non-cancer before and after training were compared to evaluate the effect of the online interactive cytopathological training program on improving the ability of endoscopists in diagnosis of cytopathology.Results:A cytopathological training platform for endoscopists to learn and take online test was successfully built. Before training, sensitivity, specificity, positive predictive value, negative predictive value and accuracy of diagnosis of cancer and non-cancer for endoscopists were 0.55 (95% CI: 0.53-0.58), 0.32 (95% CI: 0.30-0.35), 0.43 (95% CI: 0.41-0.45), 0.44 (95% CI: 0.41-0.47) and 0.43 (95% CI: 0.42-0.45), respectively. After training, the above indicators were 0.96 (95% CI: 0.95-0.97), 0.70 (95% CI: 0.68-0.73), 0.74 (95% CI: 0.72-0.76), 0.95 (95% CI: 0.94-0.96) and 0.81 (95% CI: 0.80-0.83), respectively, which were significantly improved compared with those before ( P<0.001). Conclusion:The online interactive cytopathological training program can improve the understanding and diagnostic ability of endoscopists in pancreatic cytopathology, help to implement rapid on-site evaluation in the process of EUS-FNA, and improve the diagnostic efficiency of EUS-FNA.
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【Objective】 To compare the clinical efficacy and sagittal parameters of oblique lateral interbody fusion （OLIF） combined with posterior percutaneous internal fixation and percutaneous transforaminal endoscope-assisted posterior lumbar interbody fusion （PT-Endo-TLIF） in treating degenerative lumbar spondylolisthesis. 【Methods】 A retrospective analysis was made on 43 patients with Meyerding Ⅰ and Ⅱ° degenerative lumbar spondylolisthesis treated in our hospital from September 2017 to January 2020. Among them 23 cases were treated by OLIF， and the other 20 cases were treated by PT-Endo-TLIF. We observed and recorded the operation time， average length of hospital stay， and intraoperative blood loss， and postoperative complications of the patients. The patients were followed up 3 day， 6 and 12 months after the operation. The lumbar sagittal parameters of the two groups were compared by X-ray， CT and MRI examinations. The patients’ lower back pain was recorded for visual analogue scale （VAS）， and Oswestry disability index （ODI） was used to evaluate the clinical efficacy. 【Results】 Both groups of patients successfully completed the operation and follow-up， with the average follow-up time of 12 months. The average amount of intraoperative blood loss and operation time were significantly lower in OLIF group than in PT-Endo-TLIF group （P<0.05）. Intervertebral height increased significantly in the two groups after operation compared with pre-operation （P<0.05）. Compared with pre-operation， lumbar lordosis angle， lower lumbar lordosis angle and lumbar lordosis distribution index increased in both groups （P<0.05）， with no significant difference between them （P>0.05）. The inclination angle of L4 vertebral body and the distance between L1 vertical line and S1 in both groups were decreased compared with those before surgery （P<0.05）， but there was no significant difference between the two groups （P>0.05）. The inclination angle of L5 vertebral body in the two groups was increased compared with that before surgery （P<0.05）， but there was no statistical significance between both groups （P>0.05）. 【Conclusion】 OLIF surgical technique has the comparative advantages of definite curative effect， less trauma， fewer surgical complications， shorter operation time， less bleeding， and good recovery of the height of intervertebral space， which is suitable for its application among clinicians.
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Hematopoietic stem cells (HSCs) reside at the top of the hierarchy and have the ability to differentiate to variety of hematopoietic progenitor cells (HPCs) or mature hematopoietic cells in each system. At present, the procress of HSC and HPC differentiating to the complete hematopoietic system under physiological and stressed conditions is poorly understood. In vivo lineage tracing is a powerful technique that can mark the individual cells and identify the differentiation pathways of their daughter cells, it takes as a strong technical system to research HSC. Traditional lineage tracing studies mainly rely on imaging techniques with fluorescent dyes and nucleic acid analogs. Recently, newly cell tracing technologies have been invented, and the combination of clonal tracing and DNAsequencing technologies have provided a new perspective on cell state, cell fate, and lineage commitment at the single cell level. In this review, these new tracing methods were introduce and discuss, and their advantages over traditional methods in the study of hematopoiesis were summarized briefly.
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Cell Differentiation , Hematopoiesis , Hematopoietic Stem CellsABSTRACT
Mesocotyl elongation is a key trait influencing seedling emergence and establishment in direct-seeding rice cultivation. The phytohormone gibberellin (GA) has positive effects on mesocotyl elongation in rice. However, the physiological and molecular basis underlying the regulation of mesocotyl elongation mediated by GA priming under deep-sowing conditions remains largely unclear. In the present study, we performed a physiological and comprehensive transcriptomic analysis of the function of GA priming in mesocotyl elongation and seedling emergence using a direct-seeding
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Linaclotide is the first secretagogue approved for the treatment of irritable bowel syndrome with constipation in China. A group of experts in digestive diseases was convened to discuss the clinical use of linaclotide in China on June 26, 2021. Experts concluded at the seminar that the clinical efficacy of linaclotide should be comprehensively evaluated based on the improvement of constipation and abdominal symptoms; the clinicians should emphasize the importance to patient satisfaction; and the administration time, dose and duration of linaclotide treatment can be optimized according to the treatment response, lifestyle, severity of symptoms and drug sensitivity. In addition, the experts believed that communication with patients should be strengthened to help them to establish reasonable expectations to the efficacy and optimize the treatment regimen timely according to their feedback.