Objective:To explore the causes and preventive measures of respiratory arrest following general anesthesia in children with obstructive sleep apnea （OSA）, in order to enhance the safety of OSA surgeries under general anesthesia. Methods:A retrospective analysis was conducted on the clinical and follow-up data of four pediatric cases that experienced respiratory arrest after general anesthesia for OSA at Shenzhen Hospital of Southern Medical University from March 2020 to March 2022. Results:All four children exhibited varying degrees of decreased blood oxygen saturation, cyanosis, and loss of consciousness after OSA surgery under general anesthesia, with one case experiencing respiratory and cardiac arrest. Through emergency rescue measures such as oxygen supplementation, suctioning, positive pressure ventilation, awakening, and cardiopulmonary resuscitation, all four children were stabilized. Follow-up after 2 to 6 months showed no complications. The main reasons for the occurrence are analyzed as: residual anesthetic drugs, characteristics of the OSA disease, and the unique aspects of the pediatric population. Conclusion:Children undergoing general anesthesia for OSA should be closely monitored for vital signs after surgery. If respiratory suppression occurs, active rescue measures should be taken to avoid serious consequences.
Humans ; Sleep Apnea, Obstructive/surgery* ; Anesthesia, General/adverse effects* ; Retrospective Studies ; Child ; Postoperative Complications/prevention & control* ; Male ; Female ; Child, Preschool

Objective:To investigate the effectiveness of the modified Bikini approach in the fixation of acetabular fracture with an integrated wing-shaped anatomical locking plate.Methods:A retrospective study was conducted to analyze the data of 54 patients with acetabular fracture who had been treated at Department of Trauma Orthopedics, Orthopedic Medical Center, The Third Hospital Affiliated to Southern Medical University from May 2017 to June 2021. The patients were divided into 2 groups based on different surgical approaches: an observation group [26 cases, 6 males, 20 females; aged 40.0 (29.8, 46.8) years] treated with fixation with an integrated wing-shaped anatomical locking plate through the modified Bikini approach, and a control group [28 cases, 10 males, 18 females; aged 34.5 (24.0, 43.5) years] treated with fixation with an integrated wing-shaped anatomical locking plate through the lateral-rectus approach. The incision length, operation time, intraoperative bleeding, length of hospital stay, quality of postoperative fracture reduction, visual analog scale (VAS) for pain, hip function, Vancouver Scar Scale (VSS) and Patient and Observer Scar Assessment Scale (POSAS) were compared between the 2 groups.Results:The differences in the preoperative general data between the 2 groups were not statistically significant, indicating comparability ( P>0.05). There were no statistically significant differences between the 2 groups either in terms of incision length, operation time, intraoperative bleeding, or hospital stay ( P>0.05). The 2 groups were not significantly different in the excellent/good rate of fracture reduction [100.0% (26/26) versus 92.9% (26/28)], VAS at 1 month postoperation [2.0(1.0, 3.0) versus 2.0(1.0, 3.0)], or the modified Merle d'Aubigné and Postel hip score at 12 months postoperation [13.5(12.3, 14.8) versus. 14.0(13.0, 15.0)] ( P>0.05). However, the VSS [4.50(4.00, 6.00)] and POSAS (29.85±10.05) at 12 months postoperation in the observation group were significantly lower than those in the control group [6.50(5.00, 8.25) and 37.11±11.75] ( P<0.05). Conclusion:In the fixation of acetabular fracture with an integrated wing-shaped anatomical locking plate, the modified Bikini approach can not only achieve as fine early clinical efficacy as the lateral-rectus approach, but also demonstrate the aesthetic advantages of smaller incision scar and more hidden incision.

Objective:To analyze the clinic effects of arthroscopic partial trapeziectomy and suture button suspensionplasty in the treatment of first carpometacarpal joint (CMCJ) Eaton stage II/III arthrosis.Methods:A retrospective study was conducted on a total of 15 cases (16 hands) of patients including 5 males (1 bilateral) and 10 females with CMCJ stage II/III arthrosis who underwent surgical treatment at the first affiliated hospital of Shenzhen university from January 2020 to June 2022, with mean age of 56.7±6.4 years (range, 46-75 years). The duration from pain to treatment was 7.8±3.2 months (range, 4-14 months). X-ray showed narrowing of CMCJ with osteophytes and distal radial subluxation. All the patients were treated with arthroscopic partial trapeziectomy and suture button suspensionplasty. The preoperative and last postoperative follow-up radiographs, visual analogue scale (VAS), thumb's Kapandji scores, disabilies of the arm, shoulder, and hand (DASH) scores, grip and pinch strength and time to return to work were compared.Results:All cases were followed up for 19.6±6.3 months (range, 11-36 months). The postoperative X-ray showed all the CMCJs were reduced with a normal height of first metacarpal. The mean time for patients to return to their daily activities was 18.69±3.70 d and the mean time to return to work was 24.63±4.91 d. The average VAS score decreased from 6.56±1.15 preoperatively to 1.00 (0.75, 1.25). The preoperative Kapandji's score was 8.00±0.82 and the postoperative Kapandji's score was 8.00 (7.25, 9.00). The average DASH values improved from 24.06±3.19 to 4.00 (3.00, 5.00). The were significant differences except for Kapandji score ( Z=-4.905, P<0.001; Z=-0.121, P=0.905; Z=-4.846, P<0.001). The mean grip and pinch strength showed improvement from an average of 16.4 (14.13, 18.68) kg and 1.70±0.35 kg to 26.14±3.27 kg and 3.58±0.91 kg with significant difference ( Z=-4.617, P<0.001; t=-7.669, P<0.001). Conclusion:Arthroscopic partial trapeziectomy and suture button suspensionplasty is a minimally invasive surgery for the treatment of first CMCJ Eaton stage II/III arthrosis. By this technique, the patients' existing instability and pain problems can be solved.

Bone Transplantation/adverse effects* ; Transplantation, Autologous/adverse effects*

BACKGROUND:The Pilon fracture has a complex fracture line and a comminuted fracture fragment.It is often associated with bone loss and soft tissue damage and is one of the most difficult fractures to treat clinically. OBJECTIVE:To analyze the correlation between tibial and fibular fractures in Pilon fractures. METHODS:A retrospective analysis was conducted on 188 patients with Pilon fracture in the Department of Trauma Orthopedics,The Second People's Hospital of Lianyungang City from January 2014 to January 2022.Imaging data of these patients were collected.Fibular fracture level,fibular fracture type,number of fibular fracture blocks,tibial position status,main fracture blocks of the tibia,size of medial fracture blocks of the tibia,tibial fracture angle,Topliss classification(sagittal plane)and Topliss classification(coronal plane)were summarized into a database.SPSS 25.0 was used to analyze the data of tibia and fibula in Pilon fractures by Spearman correlation analysis.On the basis of the correlation,multiple disordered Logistic regression was used to further analyze the correlation. RESULTS AND CONCLUSION:(1)Spearman correlation analysis showed that tibial fracture angle was positively correlated with fibular fracture type,fibular fracture level and fibular fracture number.Tibial position status was positively correlated with tibial fracture angle and Topliss classification(coronal plane),but negatively correlated with major tibial fracture blocks and Topliss classification(sagittal plane).The level of fibular fracture was positively correlated with the type of fibular fracture and the number of fibular fractures.The main fracture blocks of the tibia were positively correlated with Topliss classification(coronal plane)and negatively correlated with Topliss classification(sagittal plane).(2)Multiple Logistic regression analysis showed that:the level of fibular fracture was correlated with the type of fibular fracture(P<0.05);the number of fibular fractures was correlated with the main fracture block of tibia(P<0.05).(3)It is indicated that the more inclined the ankle joint was to the valgus,the more likely it was to lead to fibular fracture,and the higher the fibular fracture level,the more serious the fibular fracture degree,the more complex the fibular fracture type,the larger the tibial fracture angle,the more the tibia presented Topliss classification(coronal plane)fracture.(4)When the ankle joint was more inclined to be in varus or varus + dorsiflexion,the fibula often did not fracture or simple fracture occurred,and the lower the fracture level,the smaller the tibial fracture angle,the more Topliss classification of the tibia(sagittal plane),the more main fracture blocks of the tibia,the larger the medial fracture block.When the ankle joint is in the dorsiflexion,it often results in a simple fibular fracture with a posterolateral tibial fracture.

Objectives:To compare the clinical efficacy and safety of uni-portal endoscopic lumbar interbody fusion by using larger-diameter endoscope for single-level lumbar disease via transforaminal approach versus transfacet approach.Methods:46 patients underwent single-level uni-portal endoscopic lumbar interbody fu-sion from June 2018 to February 2022 were enrolled.18 of the patients were male and 28 were female.The mean age was 60.9±10.5 years old(40-80 years).The follow-up time was 3-47 months.Patients were divided into two groups according to the surgical approach,18 of which were included in the transforaminal group,and the remaining 28 were included in the transfacet group,and a full spinal endoscope of 7.1mm inner-di-ameter working-channel was applied to all the patients.The clinical result was evaluated before surgery,at 3d after surgery and the final follow-up,by Oswestry disability index(ODI),visual analogue scale(VAS)for back pain and leg pain,and Japanese Orthopaedic Association(JO A)score.The decompression and implant were evaluated by anteroposterior and lateral X-ray plain film and lumbar CT at 3d after operation.Bridwell criteria were used to evaluate the fusion rate based on CT images for patients followed up for more than 6 months after surgery.Results:No significant differences were found in age,gender,diagnosis,preoperative in-tervertebral height,surgical segment,preoperative ODI,VAS and JOA score between the two groups(P＞0.05).72.2％of the patients in transforaminal group complained unilateral radicular symptom,while 64.3％of the patients in transfacet group suffered from bilateral radicular symptoms(P=0.020).The average operation time was 327.7±89.9min in the transforaminal group,significantly longer than the 385.9±96.7min in the transfacet group(P=0.047),and the mean length of hospital stay in the transforaminal group was 14.8±6.0d,shorter than that of 19.5±7.8d in the transfacet group(P=0.038).75％of the patients in transfacet group underwent unilater-al laminotomy with bilateral spinal canal decompression(ULBD).The ODI scores,back and leg pain VAS scores and JOA score were significantly improved postoperatively and at the final follow-up in both groups(P＜0.05),while no statistical differences between groups(P＞0.05).Postoperative intervertebral height significantly increased in both group(P＜0.001),but no statistical difference was found between groups(P＞0.05).The compli-cation rate was comparable between two groups,without severe intraoperative or postoperative complication.A-mong the 21 patients who were followed up for more than 6 months and received CT examinations,20(95.2％)presented bony fusion at surgical segment,and there was no statistical difference between the two groups in fusion rate.Conclusions:Both the transforaminal approach and the transarticular protrusion ap-proach are safe and effective for the single-level lumbar interbody fusion under single-hole coaxial large channel endoscopy,and the transforaminal approach results in shorter operation time and shorter hospital stay.

Objectives:To explore the clinical outcomes of single-level full-endoscopic lumbar interbody fu-sion for degenerative lumbar spine disorders combined with osteoporosis.Methods:24 consecutive patients with degenerative lumbar spine disorders who underwent single-level full-endoscopic lumbar interbody fusion and were detected by dual-energy X-ray absorptiometry(DXA)during hospitalization for bone mineral density(BMD)from June 2018 to February 2022 were enrolled,including 7 males and 17 females with an average age of 66.0±9.9 years old(range 44-80 years).The follow-up period was 21.6±12.6(3-47)months after oper-ation.And the patients were divided into two groups of osteoporosis group(containing 8 osteoporotic cases)and control group(containing 16 non-osteoporotic cases).Anti-osteoporosis therapy was initiated on the diagnosis of osteoporosis.The surgery was performed using a 7.1mm inner-diameter full-endoscope.The general data and perioperative parameters were compared between the two groups.Before operation,on 3d after operation and at final follow-up,visual analogue scale(VAS)score for back and leg pain,Japanese Orthopaedic Association(JOA)score and Oswestry disability index(ODI)were used for evaluating clinical outcomes.Digital radiography(DR)and computed tomography(CT)were performed on postoperative 3d for neural decompression and implant position assessment.For patients who received DR examination,cage subsidence and screw loosening were recorded at the final follow-up;For patients who were followed-up for 6 months and more and examined with CT,fusion rate was evaluated.The complications were recorded and compared between the two groups.Re-sults:No significant differences were found in age,gender,diagnosis,preoperative intervertebral height,surgi-cal segment,preoperative VAS scores,JOA scores and ODI between the two groups.The average of the low-est T value was-3.2±0.6 for osteoporosis group,lower than the-1.4±0.8 for control group(P=0.000).The mean operative time was 429.9±135.2min for osteoporosis group,more than the 327.4±68.2min for the controls(P=0.020).There was no significant difference in intraoperative imaging assistance,bleeding,number of cases received unilateral laminotomy for bilateral decompression(ULBD),postoperative intervertebral height and length of hospital stay between groups.The VAS scores for back and leg pain,JOA scores and ODI improved post-operatively and at the final follow-up in both groups comparing with those values before operation(P＜0.05),and there was no significant difference between groups,respectively.The postoperative 3d intervertebral height in both groups increased after surgery(P＜0.01),and none significant difference was found between groups.In the osteoporosis group,asymptomatic cage subsidence happened in 1 case with severe osteoporosis(T=-4.4)due to intraoperative endplate damage during cage implantation,but no symptoms were observed,therefore no spe-cial treatment was given;And dural tear and subsequent incomplete nerve root injury happened to another case in the osetoporosis group,whose symptoms were relieved after symptomatic treatment such as neurotro-phy.18 patients received lumbar DR at final follow-up,and 10 patients received CT evaluation at more than 6 months'follow-up,no significant difference was found in cage subsidence and screw loosening rate and fusion conditions between groups(P=1.000).Conclusions:Single-level full-endoscopic lumbar interbody fusion is safe and effective in the short-term for the treatment of degenerative lumbar spine disorder combined with osteoporosis.

Exosomes are nanoscale particles secreted by various cells,including immune,stem,and tumor cells.They are enriched with bio-active substances that transport tumor information,mediate intercellular communication,and regulate multiple physiological processes and tumor microenvironment(TME)remodeling.Exosomes secreted by different tumor cell types exhibit cell-specific characteristics,contain various factors involved in immune regulation,and can interact with all types of immune cells.Cancer immunoediting is a process in which the immune system can both constrain and promote tumor development,involving three phases:elimination,equilibrium,and escape.Tu-mor-derived exosomes play diverse roles during these stages,both promoting anti-tumor immunity and inhibiting the anti-tumor activity of immune cells.Collectively,understanding the immunoediting role of exhausted T cells(TEXs)in regulating the immune microenvironment in lung cancer provides novel insights into antitumor therapy.

Objective:To explore the prevalence and independent associated factors of vascular calcification (VC) in non-dialysis chronic kidney disease (CKD) patients of stage 3-5.Methods:It was a single-center cross-sectional observational study. Non-dialysis stage 3-5 CKD patients ≥18 years old who were admitted to the Department of Nephrology, the First Affiliated Hospital of Sun Yat-sen University from May 1, 2022 to December 31, 2022 with VC evaluation were enrolled. The patients' general information, laboratory examination and imaging data were collected. Coronary artery calcification (CAC), thoracic aorta calcification (TAC), abdominal aorta calcification (AAC), carotid artery calcification and aortic valve calcification (AVC) were evaluated by cardiac-gated electron-beam CT (EBCT) scans, lateral lumbar x-ray, cervical macrovascular ultrasound and echocardiography, respectively. The differences in clinical data and the prevalence of VC at different sites of patients with different CKD stages were compared, and the prevalence of VC at different sites of patients in different age groups [youth group (18-44 years old), middle-aged group (45-64 years old) and elderly group (≥65 years old)] and patients with or without diabetes were compared. Multivariate logistic regression analysis was used to analyse the independent associated factors of VC for different areas.Results:A total of 206 patients aged (51±14) years were included, including 129 (62.6%) males. There were 44 patients with CKD stage 3 (21.4%), 51 patients with CKD stage 4 (24.8%), and 111 patients with CKD stage 5 (53.9%). CKD was caused by chronic glomerulonephritis [104 cases (50.5%)], diabetic kidney damage [35 cases (17.0%)], hypertensive kidney damage [29 cases (14.1%)] and others [38 cases (18.4%)]. Among 206 patients, 131 (63.6%) exhibited cardiovascular calcification, and the prevalence of CAC, TAC, AAC, carotid artery calcification, and AVC was 37.9%, 43.7%, 37.9%, 35.9% and 9.7%, respectively. The overall prevalence of VC in young, middle-aged and elderly patients was 24.6%, 73.6% and 97.4%, respectively. With the increase of age, the prevalence of VC in each site gradually increased, and the increasing trend was statistically significant (all P<0.001). The overall prevalence of VC in CKD patients with diabetes was 92.5% (62/67), and the prevalence of VC at each site in the patients with diabetes was significantly higher than that in the patients without diabetes (all P<0.001). Multivariate logistic regression analysis revealed that age (every 10 years increase, OR=2.51, 95% CI 1.77-3.56, P<0.001), hypertension ( OR=5.88, 95% CI 1.57-22.10, P=0.009), and diabetes ( OR=4.66, 95% CI 2.10-10.35, P<0.001) were independently correlated with CAC; Age (every 10 years increase, OR=6.43, 95% CI 3.64-11.36, P<0.001) and hypertension ( OR=6.09, 95% CI 1.33-27.84, P=0.020) were independently correlated with TAC; Female ( OR=0.23, 95% CI 0.07-0.72, P=0.011), age (every 10 years increase, OR=3.90, 95% CI 2.42-6.29, P<0.001), diabetes ( OR=5.37, 95% CI 2.19-13.19, P<0.001) and serum magnesium ( OR=0.01,95% CI 0-0.35, P=0.014) were independently correlated with AAC. Moreover, age and diabetes were independently correlated with carotid artery calcification, AVC and overall VC Conclusions:The prevalence of VC in non-dialysis CKD patients of stage 3-5 is 63.59%, of which CAC reaches 37.9%, TAC is the most common one (43.7%), while AVC is the least one (9.7%). Age and diabetes are the independent associated factors for VC of all sites except TAC, while hypertension is an independent associated factor for both CAC and TAC.

Objective:To investigate the application of virtual reality (VR) technology on intraoperative pain in patients undergoing peritoneal dialysis (PD)-related procedures with local infiltration anesthesia and the satisfaction.Methods:It was a single-center, prospective, concurrent controlled study. Patients were divided into two groups: VR group and control group. In the VR group, patients wore a VR headset to watch soothing audio and video content during surgery, while the control group underwent routine procedures. Intraoperative pain and satisfaction were assessed using the visual analog scale (VAS) and a 5-point satisfaction scale within 30 minutes of surgery. In addition, tolerance of the VR experience in the VR group was assessed using the VR sickness questionnaire.Results:A total of 43 patients were included in the study, including 25 males (58.1%). Chronic glomerulonephritis [17 cases (39.5%)] and diabetic nephropathy [6 cases (14.0%)] were the main primary diseases. There were 23 cases in the control group and 20 cases in the VR group. There were no significant differences between the two groups in age, sex ratio, proportion of primary disease, diabetes, hypertension, distribution of operation methods, preoperative vital signs and operation time (all P>0.05). VAS pain score was significantly lower in the VR group than that in the control group (5.90±2.38 vs. 7.43±1.67, t=2.469, P=0.018). The percentage of patients who were satisfied was 89.5% (17/19) in the VR group and 78.3% (18/23) in the control group, but there was no significant difference (chi-square test for continuity correction, χ2=0.308, P=0.579). Three patients in the VR group withdrew from the study due to severe discomfort, while the remaining participants found the VR experience to be tolerable. Common adverse effects included fatigue and blurred vision. Conclusions:The application of VR technology in PD-related procedures has been effective in reducing intraoperative pain when combined with local infiltration anesthesia. Furthermore, the utilization of VR technology in PD-related procedures is associated with a safe and tolerable outcome, despite the observation of some adverse effects.