1.Effect of Berberine-Baicalin Combination on Fecal Microbiota Transplantation-induced Type 2 Diabetes Mellitus Due to Internal Accumulation of Dampness-heat in Mice from Perspectives of Gut Microbiota and Metabolomics
Mengjie CHEN ; Yimin LIU ; Yun ZHOU ; Keming YU ; Min XIA ; Hongning LIU ; Yanhua JI ; Zhijun ZENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):52-64
ObjectiveTo investigate the mechanisms by which the combination of berberine (BBR) and baicalin (BAI) ameliorates type 2 diabetes mellitus (T2DM) due to internal accumulation of dampness-heat from the perspectives of gut microbiota and metabolomics. MethodsAntibiotics were used to induce pseudo-sterile mice. Thirty pseudo-sterile mice were randomized into a normal fecal microbiota transplantation group (n=10) and a T2DM (syndrome of internal accumulation of dampness-heat) fecal microbiota transplantation group (n=20). The mice were then administrated with suspensions of fecal microbiota from healthy volunteers and a patient with T2DM due to internal accumulation of dampness-heat by gavage, respectively. Each mouse received 200 µL suspension every other day for a total of 15 times to reshape the gut microbiota. The T2DM model mice were then assigned into a model group (n=8) and a BBR-BAI group (n=11). BBR was administrated at a dose of 200 mg·kg-1, and BAI was administrated in a ratio of BBR-BAI 10∶1 based on preliminary research findings. The administration lasted for 8 consecutive weeks. Fasting blood glucose (FBG), glycated hemoglobin (HbA1c), insulin (INS), triglycerides (TG), total cholesterol (CHOL), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) levels were measured to evaluate the effects of the BBR-BAI combination on glucose and lipid metabolism and liver function in T2DM mice. Hematoxylin-eosin staining was employed to observe pathological changes in the colon tissue. The expression of claudin-1, zonula occludens-1 (ZO-1), and occludin in the colon tissue was determined by Western blot. Real-time quantitative polymerase chain reaction(Real-time PCR) was employed to assess the levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) in the colon tissue. The fecal microbiota composition and differential metabolites were analyzed by 16S rRNA sequencing and ultra-high performance liquid chromatography-quadrupole-time of flight tandem mass spectrometry (UPLC-Q-TOF-MS), respectively. ResultsThe BBR-BAI combination lowered the FBG, HbA1c, and INS levels (P<0.05, P<0.01) and alleviated insulin resistance (P<0.01) in T2DM mice. Additionally, BBR-BAI elevated the levels of ZO-1, occludin, and claudin-1 (P<0.05, P<0.01) and down-regulated the expression levels of TNF-α, IL-1β, and IL-6 in the colon (P<0.05, P<0.01). The results of 16S rRNA sequencing showed that BBR-BAI increased the relative abundance of Ligilactobacillus, Phascolarctobacterium, and Akkermansia (P<0.05), while significantly decreasing the relative abundance of Alistipes, Odoribacter, and Colidextribacter (P<0.05). UPLC-Q-TOF-MS identified 28 differential metabolites, which were primarily involved in arachidonic acid metabolism and α-linolenic acid metabolism. ConclusionBBR-BAI can ameliorate T2DM due to internal accumulation of dampness-heat by modulating the relative abundance of various bacterial genera in the gut microbiota and the expression of fecal metabolites.
2.Xinjia Congrong Tusizi Decoction Regulates Ferroptosis of Granulosa Cells in Rat Model of Premature Ovarian Insufficiency via p53/Nrf2 Signaling Pathway
Min LIU ; Wei SHI ; Jing YANG ; Keming WU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(7):104-111
ObjectiveTo investigate the effects of Xinjia Congrong Tusizi decoction (XJCTD) on ovarian functions in the rat model of premature ovarian insufficiency (POI) and decipher the mechanism of regulating the tumor suppressor protein (p53)/nuclear factor E2-related factor 2 (Nrf2) pathway to attenuate granulosa cell ferroptosis. MethodForty-eight SPF-grade female SD rats were randomized into control, model, low-, medium-, and high-dose (1.1, 2.2, 4.4 g·kg-1) XJCTD, and Western medicine (coenzyme Q10, 0.002 7 g·kg-1) groups, with eight rats in each group. The rat model of POI was established by gavage of triptolide (TP), and after successful modeling, each group was administrated with the corresponding drugs by gavage for 14 d. The body weight and ovarian weight of each rat were weighed and the ovarian index was calculated. The morphology of the ovarian tissue was observed by hematoxylin-eosin staining, and the proportions of growing follicles and atretic follicles were calculated. The serum levels of anti-Müllerian hormone (AMM), estradiol (E2), and follicle-stimulating hormone (FSH) were measured by enzyme-linked immunosorbent assay (ELISA). The DCFH-DA fluorescent probe was used to measure the reactive oxygen species (ROS) content in granulosa cells. The content of cellular Ferrous ion (Fe2+), lipid peroxide (LPO), malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD) was detected by colorimetry. The expression of the tumor suppressor protein p53,Nrf2, solute carrier family 7 member 11 (SLC7A11), and glutathione peroxidase 4 (GPX4) was determined by immunohistochemistry and Western blot. ResultCompared with the control group, the model group showed decreased ovarian weight, body weight, and ovarian index (P<0.01), reduced ovarian tissue volume and proportion of growing follicles (P<0.01), increased proportion of atretic follicles (P<0.01), lowered AMH and E2 levels and elevated FSH level in the serum (P<0.01), and elevated levels of Fe2+, ROS, LPO, and MDA (P<0.01) and lowered levels of GSH and SOD in granulosa cells (P<0.01). Moreover, the modeling up-regulated the expression of p53 (P<0.01) and down-regulated the expression of Nrf2, SLC7A11, and GPX4 (P<0.05, P<0.01) in the ovarian tissue. Compared with the model group, XJCTD increased the body weight, ovarian weight, and ovarian index (P<0.01), alleviated the pathological changes in the ovarian tissue, increased the proportion of growing follicles (P<0.01), decreased the proportion of atretic follicles (P<0.01), and reduced the content of ROS in granulosa cells (P<0.05, P<0.01). In addition, medium- and high-dose XJCTD lowered the FSH level (P<0.01) and raised E2 and AMH levels (P<0.01) in the serum, reduced the Fe2+ content (P<0.05, P<0.01), and increased the SOD content (P<0.01) in granulosa cells. High-dose XJCTD reduced the LPO and MDA content (P<0.01) and increased the SOD content (P<0.01) in the granulosa cells, down-regulated the expression of p53 (P<0.05), and up-regulated the expression of Nrf2, SLC7A11, and GPX4 in the ovarian tissue (P<0.05, P<0.01). ConclusionXJCTD may protect the ovarian function in the rat model of POI by regulating the p53/Nrf2 signaling pathway to attenuate the ferroptosis of ovarian granulosa cells.
3.Multi-criteria decision model in treatment of adolescent scoliosis with three-dimensional printed scoliosis orthosis
Hongsheng ZHANG ; Hanwei HUANG ; Jinwu WANG ; Junwei ZHENG ; Rixin LIU ; Zijie LIAO ; Peng WANG ; Yuanjing XU ; Zanbo WANG ; Keming WAN
Chinese Journal of Tissue Engineering Research 2024;28(30):4806-4811
BACKGROUND:Traditional scoliosis orthosis has some disadvantages,such as complex manufacturing process,long processing cycle,poor fit and so on.Three-dimensional printed scoliosis orthosis has the advantages of high manufacturing precision and personalization. OBJECTIVE:To evaluate the efficacy of three-dimensional printed scoliosis orthosis for scoliosis based on multi-criteria decision model. METHODS:Clinical data of 72 patients with scoliosis admitted to Chen Xinghai Hospital of Integrated Traditional Chinese and Western Medicine from January 2019 to October 2022 were retrospectively collected and divided into two groups according to the treatment of orthosis.Study group(n=23)received three-dimensional printed scoliosis orthosis.Traditional group(n=49)received the traditional polypropylene spine brace treatment.The clinical efficacy and complications were compared between the two groups.A multi-criteria decision model for the treatment of scoliosis with three-dimensional printed scoliosis orthosis was established,and the stability of the benefit value,risk value and decision model of the two groups were evaluated. RESULTS AND CONCLUSION:(1)Compared with the traditional group,there were significant differences in the top vertebral offset distance,Cobb angle,top vertebral rotation,Functional Movement Screen score,visual analog scale score and total effective rate in the study group at 6 months after surgery(P<0.05).(2)Among the benefit indexes,Cobb angle had the greatest impact on the condition of patients,while the risk indexes had the greatest impact on dyspnea.(3)The benefit values of the study group and the traditional group for scoliosis were 79 and 64,and the risk values were 74 and 57,respectively.The combined benefit and risk values found that the benefit-risk value of the study group was 16 higher than that of the traditional group.(4)In the range of 0-100%relative risk weight,the benefit-risk value of the study group was always higher than that of the traditional group,which proved that the multi-criteria decision-making model had good stability.(5)It is indicated that three-dimensional printed scoliosis orthosis can better restore the physiological curvature of scoliosis and improve the efficiency of treatment.
4.Relationship between serum soluble CD155, soluble CD163 and chemotherapy efficacy and prognosis in patients with diffuse large B-cell lymphoma
Jinjie FU ; Xiaojun MA ; Keming SHENG ; Xiaoyang WANG ; Gaofeng FAN ; Huihui DONG ; Xiuying LI ; Yongfang LIU
Journal of Chinese Physician 2024;26(10):1519-1524
Objective:To investigate the relationship between serum soluble CD155 (sCD155), soluble CD163 (sCD163) and chemotherapy efficacy and prognosis in patients with diffuse large B-cell lymphoma (DLBCL).Methods:A total of 126 patients with DLBCL admitted to Handan Central Hospital from May 2018 to May 2020 (DLBCL group) and 126 healthy subjects (control group) were prospectively selected to compare serum sCD155 and sCD163 levels. According to the chemotherapy effect of DLBCL patients, they were divided into effective group and ineffective group, and the serum sCD155 and sCD163 levels were compared before and after treatment. The effective rate of chemotherapy in patients with different serum sCD155 and sCD163 levels was compared. Kaplan-Meier method was used to analyze the relationship between serum sCD155 and sCD163 levels and 3-year overall survival (OS) and progression-free survival (PFS) of DLBCL patients. Cox proportional risk regression model was used to analyze the prognostic factors of DLBCL patients.Results:The serum levels of sCD155 and sCD163 in DLBCL group were higher than those in control group before treatment (all P<0.05). The effective rate of chemotherapy in 126 DLBCL patients in this group was 69.8%(88/126). Compared with the effective group, the serum levels of sCD155 and sCD163 were higher in the ineffective group before and after treatment (all P<0.05). Compared with before treatment, serum sCD155 and sCD163 levels in the effective group were decreased after treatment (all P<0.05). The effective rate of DLBCL patients in sCD155 and sCD163 high level groups was lower than that in sCD155 and sCD163 low level groups (all P<0.05). Kaplan-Meier analysis showed that the 3-year OS and PFS of DLBCL patients in the low level group of sCD155 and sCD163 were higher than those in the high level group (all P<0.05). The high level of sCD155 and sCD163 were independent risk factors for 3-year PFS and OS in DLBCL patients (all P<0.05). Conclusions:Abnormal levels of serum sCD155 and sCD163 in DLBCL patients may reduce the efficacy of chemotherapy and lead to poor prognosis.
5.Xin Jia Congrong Tusizi Decoction Improves Mitochondrial Biogenesis of Ovarian Granulosa Cells Injury via SIRT1/PGC-1α Signaling Pathway
Wei SHI ; Min LIU ; Zhichao WANG ; Yeke WU ; Keming WU
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(5):1269-1278
Objective To explore the effects of Xin Jia Congrong Tusizi decoction on mitochondrial biosynthesis and mitochondrial function in ovarian granulosa cells.Methods We prepared the functional injury model of human ovarian granulosa cells KGN induced by triptolide.We divided the cells into control group,model group,Tiao jing Cuyun Pill group,Xin Jia Congrong Tusizi decoction group,SIRT1 inhibitor group and SIRT1 inhibitor+Xin Jia Congrong Tusizi decoction group.After 6 h incubation with triptolide to cause functional impairment of granulosa cells,SIRT1 inhibitor,blank serum and medicated serum were added for 48 h.Cell viability and apoptosis rate were assessed using CCK-8 and flow cytometry.Anti-Müllerian(AMH),follicle-stimulating hormone(FSH)and inhibin B(INHB)were detected by ELISA.ATP enzyme and MMP were used to detect by biochemical kit and JC-1 method.apoptosis rate and MMP were assessed using flow cytometry.The morphology,structure,quantity and activity changes of mitochondria were observed by electron microscope and fluorescence microscope.Western blot and PCR were used to detect the protein and mRNA expressions of SIRT1,p-SIRT1,PGC-1α,NRF1 and TFAM.Results Chinese patent medicine TiaojingCuyun Pill and bushen Yangxue Huoxue therapy compound Xin Jia Congrong Tusizi decoction augmented the activity of granulosa cells(P<0.05),decreased the apoptosis rate(P<0.05),increased ATP enzyme and MMP(P<0.05),improved mitochondrial morphological and structural damage,added the mtDNA level,the number and activity of mitochondria(P<0.01)and up-regulated and the protein and mRNA expressions of SIRT1,PGC-1α,NRF1,TFAM(P<0.05).Conclusion Xin Jia Congrong Tusizi decoction protected ovarian granulosa cells damage caused by triptolide.Its mechanism may related to improve mitochondrial dysfunction by regulating SIRT1/PGC-1α signaling pathway in order to promote the biosynthesis of new mitochondria.
6.Effect of Chinese Herbal Compounds for Tonifying Kidney and Nourishing and Activating Blood on Mitochondrial Homeostasis in Treatment of Hypovarianism Diseases: A Review
Wei SHI ; Min LIU ; Zhichao WANG ; Keming WU
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(1):240-249
Hypovarianism diseases mainly include diminished ovarian reserve, premature ovarian insufficiency, and premature ovarian failure, which decreased female reproductive capacity due to various causes. Mitochondrial dysfunction in ovarian cells can interfere with the pathway of mitochondrial energy supply to germ cells and affect follicular development and egg quality. Therefore, the role of mitochondrial homeostasis in the pathogenesis of such diseases has gradually received attention. Traditional Chinese medicine (TCM) believes that the pathogenesis of hypovarianism diseases is deficiency of kidney Qi, essence and blood as well as stasis caused by deficiency. Accordingly, tonifying kidney and nourishing and activating blood is established as the fundamental treatment. In TCM, Chinese herbal compounds for tonifying kidney, replenishing essence, and nourishing and activating blood were mostly used, which can improve the secretion of ovarian hormones and ovulatory function to enhance female reproductive capacity. These compounds have definite clinical efficacy and unique advantage of treating different diseases with same method. The effect of Chinese herbal compounds for tonifying kidney and nourishing and activating blood on "Qi and blood" is closely related to mitochondrial function, and thus more and more studies have been conducted to explore the experimental mechanism of these Chinese herbal compounds in regulating mitochondrial homeostasis and protecting ovarian function. On this basis, the paper summarized and elaborated the experimental studies on the dynamic regulation of mitochondrial homeostasis in the treatment of hypovarianism diseases by Chinese herbal compounds for tonifying kidney, replenishing essence and nourishing and activating blood. Moreover, the paper reviewed the related mechanism of regulating mitochondrial homeostasis in ovarian cells, promoting follicular development, and delaying ovarian aging by Chinese herbal compounds for tonifying kidney and nourishing and activating blood through improving mitochondrial function, resisting mitochondrial oxidative stress damage as well as regulating mitochondrial quality and quantity in multi-effect and multi-target way, in order to provide a new perspective for further research on improving female fertility with Chinese medicine.
7.Effect of peripheral cannulation for cardiopulmonary bypass in patients with congenital heart disease undergoing reoperation: A retrospective cohort study
Chun ZHOU ; Qiang HU ; Gang LIU ; Song LOU ; Luyu BIAN ; Shujie YAN ; Yuan TENG ; Sizhe GAO ; Keming YANG ; Bingyang JI
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2023;30(04):546-550
Objective To evaluate the safety and efficacy of peripheral cannulation for cardiopulmonary bypass (CPB) in patients with reoperation of congenital heart disease. Methods The perioperative data of patients with congenital heart disease who underwent reoperation in Fuwai Hospital from 2019 to 2020 were retrospectively collected. They were divided into two groups according to the cannulation methods: a central group and a peripheral group. The prognosis of the patients was analyzed. Results A total of 80 patients were collected, including 43 patients in the central group, and 37 pateints in the peripheral group. In the central group, the median age was 18 (14, 32) years, and 21 patients were male. The median age of the peripheral group was 16 (10, 27 ) years, and 18 patients were male. The CPB time in the peripheral group was 201 (164, 230) min, which was longer than that in the central group [143 (97, 188 ) min, P<0.001]. The lactate after CPB in the peripheral group was statistically higher than that in the central group [2 (1, 2 ) mmol/L vs. 1 (1, 1) mmol/L, P=0.002]. The dosage of albumin use during CPB in the peripheral group was statistically higher than that in the central group [10 (0, 20) g vs. 0 (0, 0) g, P=0.004]. There was no statistical difference in the postoperative dosage of red blood cells use [0 (0, 2) U vs. 0 (0, 0) U, P=0.117], mechanical ventilation time [14 (11, 19) h vs. 13 (10, 15) h, P=0.296], ICU stay time [43 (23, 80) h vs. 40 (20, 67) h, P=0.237] or postoperative hospital stay time [10 (7, 12) d vs. 8 (7, 10) d, P=778] between the two groups. Conclusion It’s safe and efficient to establish CPB through peripheral cannulation in patients with complex congenital heart disease undergoing reoperation.
8.Effects of Chaihu Shugan Powder (柴胡疏肝散) on Duodenal Mucosal Barrier and Intestinal Flora in Functional Dyspepsia Model Rats
Keming YANG ; Yuebo JIA ; Yeertai YELIYA ; Xuejiao LIU ; Xiangxiang WANG ; Kailin JIANG ; Jianghong LING
Journal of Traditional Chinese Medicine 2023;64(23):2443-2453
ObjectiveTo study the possible mechanism of Chaihu Shugan Powder (柴胡疏肝散, CSP) in the treatment of functional dyspepsia (FD). MethodsTwenty-four SD rats were randomly divided into a normal group, a model group, a CSP group and a probiotic group, with six rats in each group.The tail-clamping provocation method was used in all groups except for the normal group to replicate the FD rat model. Simultaneously, the normal group and the model group were given 10 ml/(kg·d) of saline by gavage, while the CSP group and the probiotic group were given 9.6 g/(kg·d) of CSP aqueous decoction and 0.945 g/(kg·d) of probiotic aqueous solution by gavage, respectively, twice daily for four weeks. After four weeks, the gastric emptying and small intestinal propulsion rates were detected in each group of rats. Hematoxylin-eosin (HE) staining was used to observe the histopathological changes in the gastric sinusoids and duodenum of the rats. The changes in the intestinal flora were analyzed by 16s rDNA high-throughput gene sequencing, and the expressions of the duodenal zona occludin 1 (ZO-1) and Occludin were detected by immunohistochemistry and western blotting. Pearson correlation analysis was performed on intestinal flora and ZO-1 and Occludin protein expression. ResultsThe gastric antrum tissue structure was clear in all groups, and the gland structure was regular, with smooth gastric tissue mucosa and no pathological changes such as erosion and ulcer. Compared to those in the normal group, the intestinal villi in the duodenal tissue in the model group were significantly reduced or atrophied, and the goblet cells were arranged in disorder, with eosinophilic infiltration; the gastric emptying rate and small intestinal propulsion rate, as well as ZO-1 and Occludin protein expression in duodenal tissue significantly decreased (P<0.01). Compared to those in the model group, the duodenal tissue structure was clear, and the length intestinal villi was longer, with goblet cells neatly arranged in the CSP group and the probiotic group; no obvious eosinophil infiltration was found, and the gastric emptying rate and small intestinal propulsion rate as well as ZO-1 and Occludin protein expression significantly increased in the CSP group; a small amount of eosinophil infiltration was found, and the gastric emptying rate and Occludin protein expression significantly increased in the probiotic group (P<0.05 or P<0.01). Beta diversity analysis of intestinal flora showed that the overall structure of intestinal flora in the model group changed significantly compared to that in the normal group (P<0.01). The overall structure of the intestinal flora in the CSP group and the probiotic group was closer to the normal group than the model group. Species composition analysis showed that the relative abundance of the Firmicutes decreased, while the relative abundance of the Bacteroidetes and norank_f_Muribaculaceae increased, and the Bacteroidetes/Firmicutes value increased in the model group than those in the normal group (P<0.05 or P<0.01). Compared to those in the model group, the relative abundance of the Firmicutes increased, while the relative abundance of the Bacteroidetes and norank_f_Muribaculaceae, as well as the Bacteroidetes/Firmicutes value decreased in the CSP group and the probiotic group (P<0.05 or P<0.01). There was no statistically significant difference in each indicator between the probiotic group and the CSP group (P>0.05). Pearson correlation analysis showed that at the phylum level, Firmicutes was positively correlated with ZO-1 (r=0.610, P=0.016) and Occludin (r=0.694, P=0.004) protein expression. Bacteroidetes was negatively correlated with ZO-1 (r=
9.Application of real-time virtual sonography surgical navigation combined with indocyanine green fluorescence imaging technology during anatomical liver resection
Changsheng PU ; Tiantian WU ; Wenzai SHI ; Xiaopeng SUO ; Xianjia WU ; Qiang WANG ; Jun LIU ; Keming ZHANG
Chinese Journal of Hepatobiliary Surgery 2023;29(5):333-338
Objective:To analyze the clinical effect of real-time virtual sonography (RVS) surgical navigation combined with indocyanine green fluorescence imaging technology in the anatomical liver segmentectomy for hepatocellular carcinoma (HCC).Methods:The clinical data of 35 patients who underwent anatomical liver segmentectomy using RVS surgical navigation combined with indocyanine green fluorescence imaging technology in the Department of Hepatobiliary Surgery of Peking University International Hospital from January 2020 to January 2022 were retrospectively analyzed. There were 22 males and 13 females, aged (60.0±10.0) years. RVS is real-time virtual sonography, which fuses real-time intraoperative ultrasound images with corresponding preoperative CT or MRI images to guide the surgical plane. Methods of operation, time of operation, intraoperative blood loss, operative margin, hospital stay and postoperative complications were analyzed. Postoperative complications were graded by Clavien-Dindo system. The 1-year overall survival and tumor-free survival rates of patients were followed up by outpatient or telephone review.Results:Anatomical liver segmentectomy was performed on 36 patients, including 1 patient (2.9%) of segment Ⅱ, 1 patient (2.9%) of segment Ⅲ, 5 patients (14.3%) of segment Ⅳ, 6 patients (17.1%) of segment Ⅴ, 10 patients (28.6%) of segment Ⅵ, 7 patients (20.0%) of segment Ⅶ, 4 patients (11.4%) of segment Ⅷ, and 1 patient (2.9%) of segments Ⅴ+ Ⅷ. The operation time of 35 patients was (310.2±81.6) min, with an intraoperative blood loss of [ M( Q1, Q3)] 390.0(250.0, 500.0) ml. The hospital stay was (11.6±2.1) d. There was no postoperative death. Postoperative complications occurred in 3 cases (8.6%), of which 2 cases (5.7%) were ascites, Clavien-Dindo grade Ⅰ; Postoperative hemorrhage occurred in 1 case (2.9%), Clavien-Dindo grade Ⅱ. HCC was confirmed by pathology in all cases, and the operative margins were negative. The median follow-up time was 14 months (12 to 20 months). The 1-year overall survival rate after surgery was 100.0%(35/35), three patients (8.6%) had tumor recurrence, and the 1-year tumor-free survival rate was 91.4% (32/35). Conclusion:RVS surgical navigation combined with indocyanine green fluorescence imaging technology could be feasible in anatomical segmental hepatectomy for HCC.
10.Risk factors for recurrent left ventricular outflow tract obstruction after surgical repair for subaortic stenosis
Jie DONG ; Shun LIU ; Shuo DONG ; Mengxuan ZOU ; Chuhao DU ; Yangxue SUN ; Haitao XU ; Jiashu SUN ; Qiang WANG ; Shoujun LI ; Keming YANG ; Jun YAN
Chinese Journal of Thoracic and Cardiovascular Surgery 2023;39(10):599-604
Objective:To investigate the prognosis and risk factors for children diagnosed with all types of subaortic stenosis(SAS) who developed recurrent left ventricular outflow tract obstruction after surgical treatment.Methods:The study retrospectively included patients aged 0-18 years old who underwent open heart SAS surgery at Fuwai Hospital from 2016-2019. Children with hypertrophic obstructive cardiomyopathy were excluded. Detailed operative notes, medical records and ultrasound information, and follow-ups were extracted. Recurrent SAS was defined as left ventricular outflow tract gradient 30 mmHg(1 mmHg=0.133 kPa) 1 month after SAS surgical treatment.Results:A total of 137 children were included in this study. The medium age of children at the time of SAS surgery was 4.6 years old(3 months-17.8 years old). After a median follow-up of 4.36 years(3.2-5.7 years), a total of 30 patients developed recurrent LVOTO, with a recurrence rate of 21.9%, and 7(5.1%) underwent a second surgery. Compared to the non-recurrent group, children in the recurrent group were younger at the time of surgery( P=0.0443), had a smaller body surface area( P=0.0485), and a longer length of stay( P=0.0380). In Cox analysis, when only considering preoperative variables, the independent risk factor for LVOTO recurrence were a peak left ventricular outflow tract gradient higher than 50 mmHg( HR=5.25, P=0.001), a BSA less than 0.9( HR=2.5, P=0.023), and a length of SAS 5 mm( HR=2.29, P=0.050). When both preoperative and intraoperative variables were considered, preoperative peak left ventricular outflow tract gradient 50 mmHg( HR=4.91, P=0.002) and peeling from the aortic valve( HR=3.23, P=0.010) were independent risk factors for postoperative recurrence. Conclusion:Recurrent LVOTO after SAS surgical repair is common, and regular postoperative follow-up is crucial to evaluate whether a secondary intervention is required. Regular postoperative follow-up is needed for children at high risk.

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