1.Surgical transmural ablation of atrial fibrillation based on visualization analysis of CiteSpace and VOSviewer
Xaokang TU ; Hongduan LIU ; Haoyu TAN ; Hao ZHANG ; Qingchun SONG ; Benli YANG ; Long SONG ; Liming LIU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2024;31(03):446-453
		                        		
		                        			
		                        			Objective  To analyze the current status and hotspots of surgical transmural ablation of atrial fibrillation using CiteSpace and VOSviewer. Methods The Web of Science Core Collection database was used as the data source. The CiteSpace 5.8.R3 and VOSviewer software were used to analyze the related studies on surgical transmural ablation of atrial fibrillation about the authors, countries/institutions, literature co-citation and keywords. Results  A total of 109 articles were enrolled. Damiano RJ was the most prolific researcher, while Cox JL was the author with the highest number of citations. The United States was the leading country in this research field. The University of Washington was an important institution in the study of atrial fibrillation transmural ablation. The main hotpots were the effectiveness of surgical ablation, especially Cox-maze procedure, selection of the energy source of surgical ablation, combination of surgical and catheter ablations, and pulmonary vein isolation. Conclusion This study visualizes the current research status of surgical ablation of atrial fibrillation. How to improve the effectiveness and transmurality of surgical ablation is a hot research topic in the surgical treatment of atrial fibrillation. The combination of electrophysiology mapping and surgical ablation may be the development direction in the surgical treatment of atrial fibrillation.
		                        		
		                        		
		                        		
		                        	
2.Chain mediation of psychological resilience and coping styles between social support and psychological distress in elderly stroke patients
Xinying ZHANG ; Kunjuan JING ; Bei WANG ; Lijing BAI ; Yuejia ZHAO ; Qingchun ZHAO
Chinese Journal of Modern Nursing 2024;30(26):3579-3584
		                        		
		                        			
		                        			Objective:To investigate the chain mediating role of psychological resilience and coping styles between social support and psychological distress in elderly stroke patients.Methods:Using convenience sampling, 245 elderly stroke patients with their first episode, admitted to the Neurology Department of the Affiliated Hospital of Hebei University from June to July 2023, were recruited as study subjects. A questionnaire survey was conducted using a General Information Questionnaire, Distress Thermometer for Stroke Patients, Perceived Social Support Scale, Connor-Davidson Resilience Scale Short Form, and Medical Coping Modes Questionnaire. Pearson correlation analysis was used to examine the relationships between psychological distress, social support, psychological resilience, and coping styles in elderly stroke patients. Harman's single-factor test was employed to detect common method bias among variables. The PROCESS macro in SPSS software was utilized to test the chain mediation effects.Results:A total of 245 questionnaires were distributed, with 230 valid responses collected, yielding a response rate of 93.9%. Among the 230 elderly stroke patients, the incidence of psychological distress was 23.9% (55/230). Significant correlations were observed among psychological distress, social support, psychological resilience, and coping styles ( P<0.05). Social support influenced psychological distress through the mediation of psychological resilience and confrontational coping, with a total indirect effect of -0.098. The same relationship existed for social support through psychological resilience and avoidant coping, with a total indirect effect of -0.058. Additionally, social support influenced psychological distress through psychological resilience and submissive coping, with a total indirect effect of -0.113. Avoidant coping had a suppressing effect on the influence of social support on psychological distress. Conclusions:Elderly stroke patients experienced moderate to low levels of psychological distress. Psychological resilience and coping styles played a chain-mediating role between social support and psychological distress. Special attention should be given to elderly stroke patients with low levels of social support.
		                        		
		                        		
		                        		
		                        	
3.Efficacy and safety of CM310 in moderate-to-severe atopic dermatitis: A multicenter, randomized, double-blind, placebo-controlled phase 2b trial
Yan ZHAO ; Jianzhong ZHANG ; Bin YANG ; Jingyi LI ; Yangfeng DING ; Liming WU ; Litao ZHANG ; Jinyan WANG ; Xiaohong ZHU ; Furen ZHANG ; Xiaohua TAO ; Yumei LI ; Chunlei ZHANG ; Linfeng LI ; Jianyun LU ; Qingchun DIAO ; Qianjin LU ; Xiaoyong MAN ; Fuqiu LI ; Xiujuan XIA ; Hao CHENG ; Yingmin JIA ; Guoqing ZHAO ; Jinchun YAN ; Bo CHEN
Chinese Medical Journal 2024;137(2):200-208
		                        		
		                        			
		                        			Background::Atopic dermatitis (AD) affects approximately 10% of adults worldwide. CM310 is a humanized monoclonal antibody targeting interleukin-4 receptor alpha that blocks interleukin-4 and interleukin-13 signaling. This trial aimed to evaluate the efficacy and safety of CM310 in Chinese adults with moderate-to-severe AD.Methods::This multicenter, randomized, double-blind, placebo-controlled, phase 2b trial was conducted in 21 medical institutions in China from February to November 2021. Totally 120 eligible patients were enrolled and randomized (1:1:1) to receive subcutaneous injections of 300 mg CM310, 150 mg CM310, or placebo every 2 weeks for 16 weeks, followed by an 8-week follow-up period. The primary endpoint was the proportion of patients achieving ≥75% improvement in the Eczema Area and Severity Index (EASI-75) score from baseline at week 16. Safety and pharmacodynamics were also studied.Results::At week 16, the proportion of EASI-75 responders from baseline was significantly higher in the CM310 groups (70% [28/40] for high-dose and 65% [26/40] for low-dose) than that in the placebo group (20%[8/40]). The differences in EASI-75 response rate were 50% (high vs. placebo, 95% CI 31%–69%) and 45% (low vs. placebo, 95% CI 26%–64%), with both P values <0.0001. CM310 at both doses also significantly improved the EASI score, Investigator’s Global Assessment score, daily peak pruritus Numerical Rating Scale, AD-affected body surface area, and Dermatology Life Quality Index compared with placebo. CM310 treatment reduced levels of thymus and activation-regulated chemokine, total immunoglobulin E, lactate dehydrogenase, and blood eosinophils. The incidence of treatment-emergent adverse events (TEAEs) was similar among all three groups, with the most common TEAEs reported being upper respiratory tract infection, atopic dermatitis, hyperlipidemia, and hyperuricemia. No severe adverse events were deemed to be attributed to CM310. Conclusion::CM310 at 150 mg and 300 mg every 2 weeks demonstrated significant efficacy and was well-tolerated in adults with moderate-to-severe AD.Trial Registration::ClinicalTrials.gov, NCT04805411.
		                        		
		                        		
		                        		
		                        	
4.Effect and mechanism of PNU-282987 on cognitive function of temporal lobe epilepsy model rats
Yongge LI ; Shu ZHOU ; Qingchun LIU ; Xiaoming WEI ; Dong ZHANG ; Fengqiao MA
China Pharmacy 2023;34(19):2350-2355
		                        		
		                        			
		                        			OBJECTIVE To investigate the effect and mechanism of α7 nicotinic acetylcholine receptor (α7nAChR) agonists PNU-282987 on cognitive function in temporal lobe epilepsy (TLE) model rats. METHODS Sixty rats were randomly divided into control group, model group, PNU-282987 group (3 mg/kg) and methyllycaconitine (MLA)+PNU-282987 group (6 mg/kg MLA+3 mg/kg PNU-282987), with 15 rats in each group. Except for control group, the TLE model was established in the other groups. After the model was successfully established, each group was given relevant medicine or normal saline intraperitoneally, once a day, for two consecutive weeks. The epilepsy attack of rats was observed and scored, and the duration of seizures was recorded; the cognitive function of rats was detected; pathological morphology of neurons in CA1 region was observed; the levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and IL-1β in the hippocampus were detected; the positive expressions of ionized calcium-binding adapter molecule-1 (IBA-1), α7nAChR, nuclear factor-κB (NF-κB) p65, p-NF-κB p65 in the hippocampus were detected. RESULTS Compared with model group, the score and duration of seizures, the number of IBA-1 positive cells, the levels of TNF- α, IL-6 and IL-1β, the expressions of NF- κB p65 and p-NF- κB p65 protein decreased significantly in the hippocampus (P<0.05); the escape latency time was shortened significantly (P<0.05), the time spent in the original platform quadrant and times of crossing the platform increased significantly (P<0.05); neuronal damage in the CA1 region of the hippocampus was significantly reduced; the expression of α7nAChR protein increased significantly in hippocampus (P<0.05). Compared with PNU-282987 group, the above indexes of rats in MLA+PNU-282987 group were reversed significantly (P<0.05). CONCLUSIONS PNU-282987 could improve cognitive dysfunction in TLE model rats, and its mechanism may be associated with inhibiting microglia-mediated inflammatory response through α7nAChR/NF- κB signaling pathway, thus reducing hippocampal neuronal damage.
		                        		
		                        		
		                        		
		                        	
5.Epidemiological investigation of a pulmonary tuberculosis outbreak involving six high schools
LI Yan ; LEI Mengting ; WANG Sui ; YIN Shujiao ; ZHANG Cunrui ; LI Qingchun
Journal of Preventive Medicine 2023;35(7):607-610
		                        		
		                        			
		                        			In September 2020, three pulmonary tuberculosis cases were identified during school physical examinations at a senior high school in a district (School B) of Hangzhou City. Immediate epidemiological surveys were performed by local district and Hangzhou Center for Disease Control and Prevention, and a pulmonary tuberculosis outbreak involving 9 cases in 6 schools were identified. All cases were once Grade 9 students in Class of 2019 at a junior high school (School A), and the source of infection might be a laboratory-confirmed cases (index case) in this class reported in April, 2019. Following exposure to index case, other cases developed disease onset or were screened after entering senior high schools. In November, 2020, tuberculin skin test and chest X-ray scan were performed to screen pulmonary tuberculosis among 43 students and teachers in a class of Grade 9 in Class of 2019 at School A, and 17 students strongly positive for tuberculin skin test were given prophylactic therapy. No pulmonary tuberculosis case were identified until June 2021. It is suggested that early epidemiological surveys facilitates the identification of the epidemiological correlation between cases. Active search for individuals with common exposure history and prophylactic therapy are required if a possible outbreak is found, which is helpful to avoid the spread of the outbreak.
		                        		
		                        		
		                        		
		                        	
6.Clinical characteristics and surgical effects of acute calculous cholecystitis in high altitude area of Tibet
Jie SHU ; Haoxiang ZHANG ; Jianwei LI ; Lin LI ; Qingchun CHANG ; Danzeng SUOLANG ; Jifeng ZENG ; Fangfang ZHENG ; Li CAO ; Shuguo ZHENG
Chinese Journal of Digestive Surgery 2022;21(7):917-922
		                        		
		                        			
		                        			Objective:To investigate the clinical characteristics and surgical effects of acute calculous cholecystitis (ACC) in high altitude area of Tibet.Methods:The retrospective cohort study was conducted. The clinicopathological data of 182 ACC patients who underwent surgery in the 954th Hospital of Army from January 2016 to December 2020 were collected. There were 56 males and 126 females, aged (41±13)years. Of the 182 patients, 61 cases undergoing open cholecystec-tomy were divided into the open group, and 121 cases undergoing laparoscopic cholecystectomy (LC) were divided into the laparoscopic group. Observation indicators: (1) clinical characteristics of ACC in high altitude area; (2) surgical situations; (3) postoperative complications; (4) follow-up. Follow-up was conducted using outpatient examination and telephone interview to detect postopera-tive complications of patients up to October 2021. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the t test. Measure-ment data with skewed distribution were represented as M( Q1, Q3) or M(range), and comparison between groups was conducted using the Mann-Whitney U test. Count data were expressed as absolute numbers or percentages, and comparison between groups was conducted using the chi-square test. Results:(1) Clinical characteristics of ACC in high altitude area. Of the 182 patients, cases with symptom duration as <3 days, 3 days to 1 month, >1 month and ≤12 months, >12 months were 37, 43, 57, 45, respectively. Seventy-seven of the 182 patients were combined with other diseases before surgery. (2) Surgical situations. Two cases in the open group were found common bile duct stones during the operation, and underwent choledochotomy and T-tube drainage. Nine cases in the laparoscopic group were converted to laparotomy, including 3 cases with severe abdominal adhesion and ineffective hemostasis, 6 cases with anatomical variation of Calot triangle. The conversion to laparotomy rate was 7.438%(9/121). The other patients in the open group and the laparoscopic group completed surgery successfully. The operation time, volume of intraoperative blood loss, time to postoperative first out-of-bed activities, time to postoperative first flatus, cases with indwelling drainage tube, cases with acute simple cholecystitis, acute suppurative cholecystitis, acute gangrene cholecystitis, gallbladder perforation of disease pathological type, postoperative white cell count, postoperative neutrophil percentage, duration of postoperative hospital stay were (109±42)minutes, 50(45,100)mL, (16.1±1.5)hours, (31.4±11.9)hours, 33, 25, 27, 6, 3, (6.8±1.9)×10 9/L, 72.7%±7.4%, (7.3±1.7)days for the open group. The above indicators were (98±43)minutes, 20(20,50)mL, (12.9±1.4)hours, (26.7±12.1)hours, 51, 56, 51, 9, 5, (7.1±2.4)×10 9/L, 70.5%±8.7%, (6.4±1.7)days for the laparoscopic group. There were significant differences in the volume of intraopera-tive blood loss, time to postoperative first out-of-bed activities, time to postoperative first flatus, duration of postoperative hospital stay between the two groups ( Z=?6.75, t=14.41, 2.46, 3.45, P<0.05). There was no significant difference in the operation time, cases with indwelling drainage tube, diseases pathological type, postoperative white cell count, postoperative neutrophil percentage between the two groups ( t=1.66, χ2=2.33, 0.84, t=?0.71, 1.66, P>0.05). (3) Postoperative complica-tions. Postoperative complications occurred in 7 of the 61 patients in the open group and 5 of the 121 patients in the laparoscopic group. There was no significant difference in the postoperative complications between the two groups ( χ2=2.46, P>0.05). (4) Follow-up. Of the 182 patients, 115 cases including 35 cases in the open group and 80 cases in the laparoscopic group were followed up for 12(range, 3?24)months. During the follow-up, 1 case of the 35 patients in the open group had abdominal pain and jaundice, which was diagnosed as choledocholithiasis. The patient was improved after stone removal with endoscopic retrograde cholangiopancreatography. Two cases of the 35 patients in the open group had upper abdominal pain with fever and were improved after anti-infection treatment. Of the 80 patients in the laparoscopic group, 1 case had upper abdominal pain and 1 case had dyspepsia and anorexia, respectively. The two cases were improved after symptomatic treatment. Conclusions:Patients with ACC in the high altitude area of Tibet have high ratio of preoperative complications, long diseases history and high incidence rates of pyogenic perforation of the gallbladder. Patients with ACC in the high altitude area undergoing LC is safe and effective. Compared with open cholecystectomy, LC have less volume of intraoperative blood loss, faster postoperative recovery and shorter duration of postoperative hospital stay.
		                        		
		                        		
		                        		
		                        	
7.Haze weather health protection behavior and associated factors in adolescents
Chinese Journal of School Health 2022;43(3):367-371
		                        		
		                        			Objective:
		                        			To investigate adolescent haze weather health protection behavior, and to provide scientific basis for behavioral intervention and health guidance for adolescents in haze weather.
		                        		
		                        			Methods:
		                        			From June 2015 to April 2016, 1 025 adolescents were selected from 22 classes in two middle schools of Baoding City, Hebei Province, by stratified cluster sampling method. General information questionnaire and the Brief Haze Weather Health Protection Behavior Assessment Scale Adolescent Version (BHWHPBAS AV) were used. Multiple linear regressions were conducted to explore factors affecting adolescent haze weather health protection behavior. Different models were used to confirm associations between influencing factors and BHWHPBAS AV scores.
		                        		
		                        			Results:
		                        			Adolescents had a low overall score of BHWHPBASAV (45.81±13.16). The score rate of self adjustment after haze weather was the highest (64.54%). The score rate of obtaining relevant knowledge before haze weather was the lowest (50.28%). Compared with adolescents in urban area, rural adolescents had a lower BHWHPBAS AV score ( β=-3.20, P <0.01). Compared with students (living with parents),  those living without parents had a lower BHWHPBAS AV score ( β=-4.16, P =0.01). Compared with students never receive physical examination,those had received physical examination during the past years had a higher BHWHPBAS AV score ( β=4.44,5.66,9.04, P <0.01). Compared with students with no knowledge of respiratory system diseases, those with moderate to sufficient knowledge had a  higher BHWHPBAS AV score ( β=9.34,12.19,P <0.01). These associations were stable and consistent.Multiple linear regression analysis showed that residence, residence with parents, physical examination and knowledge of respiratory diseases were the relevant factors of BHWHPBAS AV score ( P <0.05).
		                        		
		                        			Conclusion
		                        			Adolescent haze weather health protection behavior level is low and is affected by many factors. Cooperation should be strengthened to conduct behavioral interventions and health guidance on haze health protection for adolescents, so as to promote healthy growth of adolescents.
		                        		
		                        		
		                        		
		                        	
8.Correlation between the local perforator advancement flap for mid-face defects and the three dimensional configuration of the skin ligament
Xinyi LI ; Ming ZHANG ; Wei ZHANG ; Jinglong NING ; Fei ZHU ; Banghe WANG ; Qingchun XI ; Xiaojing LI
Chinese Journal of Plastic Surgery 2022;38(9):1079-1086
		                        		
		                        			
		                        			Objective:To investigate the clinical effect of local perforator advancement flap in repairing mid-face soft tissue defects and its correlation between with the three dimensional configuration of the skin ligament.Methods:1) 12 fresh adult cadaver specimens (7 males, 5 females, aged 54-87 years) were selected. After dehydration and degreasing of the cadaver head with acetone, plasticized and sliced with a fully transparent ultra-thin layer of epoxy resin, using a Leica MZ8 stereo microscope and a Leica DFC295 digital camera to observe and analyze the prepared slices, and observe the differences in the three-dimensional structural characteristics of the cutaneous ligaments in different parts of the midface (cheek, nose, orbital eyelid) . (2) A retrospective analysis was made of the case data of midface soft tissue defects admitted to the Plastic Surgery Department of the First Affiliated Hospital of Anhui Medical University from January 2015 to October 2021. All patients were repaired with local perforator advancement flap. The Pearson bivariate correlation test was used to analyze the correlation among flap advancement distance, flap area, flap aspect ratio, and defect size. The Kruskal-Wallis test was used to analyze the differences of flap area and flap aspect ratio in different parts of the midface.Results:1) Anatomical studies have shown that the running direction of the facial skin ligaments is the same as that of the expressive muscles, and their three-dimensional structures at the upper eyelid and the nasal and facial corners of the upper nasal alar are different. The upper eyelid skin ligaments run along the eyelid, while the upper nasal The supracutaneous ligaments run down the alar of the nose. (2) The clinical study included 18 patients, 8 males and 10 females, aged (65.1±22.9) years. The flaps of 18 patients survived after operation, the flap area was (13.85±9.38) cm 2, and the advancing distance was (1.94±0.75) cm. Statistical analysis showed that there was a correlation between the flap advancement distance and the flap incision area ( r=-0.712, P=0.022) and the flap aspect ratio ( r=-0.580, P =0.012). There was no correlation with the defect area ( r=-0.227, P=0.365) ; the aspect ratios of the cheek, nose and orbital lid flaps were 2.06±0.42 , 2.50±1.18, 3.25±0.93, and the differences were statistically significant ( H= 6.59, P=0.037). Conclusions:The local perforator advancement flap is an ideal method for repairing midface soft tissue defects. The differences in the construction of the skin ligaments in different parts of the mid-face will affect the ease of advancement of the flaps and other characteristics in each part, which may be the reasons for affecting the aspect ratio of the flap design.
		                        		
		                        		
		                        		
		                        	
9.Correlation between the local perforator advancement flap for mid-face defects and the three-dimensional configuration of the skin ligament
Xinyi LI ; Ming ZHANG ; Wei ZHANG ; Jinlong NING ; Fei ZHU ; Banghe WANG ; Qingchun XI ; Xiaojing LI
Chinese Journal of Plastic Surgery 2022;38(10):1094-1101
		                        		
		                        			
		                        			Objective:To investigate the clinical effect of local perforator advancement flap in repairing mid-face soft tissue defects and its correlation with the three-dimensional configuration of the skin ligament.Methods:(1) Tweleve fresh adult cadaver specimens, including seven males and five females, aged 54-87 years old, were selected. After dehydration and degreasing of the cadaver head with acetone, plasticized and sliced with a fully transparent ultra-thin layer of epoxy resin, using a Leica MZ8 stereo microscope and a Leica DFC295 digital camera to observe and analyze the prepared slices and observe the differences in the three-dimensional structural characteristics of the cutaneous ligaments in different parts of the mid-face (cheek, nose, orbital eyelid). (2) A retrospective study was conducted with the data of mid-face soft tissue defects admitted to the Department of Plastic Surgery of the First Affiliated Hospital of Anhui Medical University from January 2015 to October 2021. All patients were repaired with local perforator advancement flaps. The Pearson bivariate correlation test was used to analyze the correlation among flap advancement distance, flap area, flap aspect ratio, and defect size. The Kruskal-Wallis test was used to analyze the differences in flap size and aspect ratio in different parts of the mid-face. The measurement data were described by Mean±SD or M( Q1, Q3). Results:(1) Anatomical studies have shown that the running direction of the facial skin ligaments is the same as that of the expressive muscles, and their three-dimensional structures at the upper eyelid and the nasal and facial corners of the upper nasal alar are different. The upper eyelid skin ligaments run along the eyelid, while the upper nasal cutaneous ligaments run down the nose alar. (2) The clinical study included 18 patients, including eight males and ten females, aged (64.6±23.4) years old. All flaps survived uneventfully. The average flap size was 10.6(8.0, 18.0) cm 2, and the average advancing distance was 2.8(2.0, 4.0) cm. Statistical analysis showed a correlation between the flap advancement distance, the flap incision area ( r=-0.71, P=0.022), and the flap aspect ratio ( r=-0.58, P=0.012). There was no correlation with the defect area ( r=-0.23, P=0.365); the aspect ratios of the cheek, nose, and orbital lid flaps were 2.1(1.9, 2.3), 2.0(1.6, 3.5), 3.5(3.0, 4.0), and the differences were statistically significant ( H=6.59, P=0.037). Conclusions:The local perforator advancement flap is an ideal method for repairing mid-face soft tissue defects. The differences in the construction of the skin ligaments in different parts of the mid-face will affect the ease of advancement of the flaps and other characteristics in each part, which may be the reasons for affecting the aspect ratio of the flap design.
		                        		
		                        		
		                        		
		                        	
10.Correlation between the local perforator advancement flap for mid-face defects and the three dimensional configuration of the skin ligament
Xinyi LI ; Ming ZHANG ; Wei ZHANG ; Jinglong NING ; Fei ZHU ; Banghe WANG ; Qingchun XI ; Xiaojing LI
Chinese Journal of Plastic Surgery 2022;38(9):1079-1086
		                        		
		                        			
		                        			Objective:To investigate the clinical effect of local perforator advancement flap in repairing mid-face soft tissue defects and its correlation between with the three dimensional configuration of the skin ligament.Methods:1) 12 fresh adult cadaver specimens (7 males, 5 females, aged 54-87 years) were selected. After dehydration and degreasing of the cadaver head with acetone, plasticized and sliced with a fully transparent ultra-thin layer of epoxy resin, using a Leica MZ8 stereo microscope and a Leica DFC295 digital camera to observe and analyze the prepared slices, and observe the differences in the three-dimensional structural characteristics of the cutaneous ligaments in different parts of the midface (cheek, nose, orbital eyelid) . (2) A retrospective analysis was made of the case data of midface soft tissue defects admitted to the Plastic Surgery Department of the First Affiliated Hospital of Anhui Medical University from January 2015 to October 2021. All patients were repaired with local perforator advancement flap. The Pearson bivariate correlation test was used to analyze the correlation among flap advancement distance, flap area, flap aspect ratio, and defect size. The Kruskal-Wallis test was used to analyze the differences of flap area and flap aspect ratio in different parts of the midface.Results:1) Anatomical studies have shown that the running direction of the facial skin ligaments is the same as that of the expressive muscles, and their three-dimensional structures at the upper eyelid and the nasal and facial corners of the upper nasal alar are different. The upper eyelid skin ligaments run along the eyelid, while the upper nasal The supracutaneous ligaments run down the alar of the nose. (2) The clinical study included 18 patients, 8 males and 10 females, aged (65.1±22.9) years. The flaps of 18 patients survived after operation, the flap area was (13.85±9.38) cm 2, and the advancing distance was (1.94±0.75) cm. Statistical analysis showed that there was a correlation between the flap advancement distance and the flap incision area ( r=-0.712, P=0.022) and the flap aspect ratio ( r=-0.580, P =0.012). There was no correlation with the defect area ( r=-0.227, P=0.365) ; the aspect ratios of the cheek, nose and orbital lid flaps were 2.06±0.42 , 2.50±1.18, 3.25±0.93, and the differences were statistically significant ( H= 6.59, P=0.037). Conclusions:The local perforator advancement flap is an ideal method for repairing midface soft tissue defects. The differences in the construction of the skin ligaments in different parts of the mid-face will affect the ease of advancement of the flaps and other characteristics in each part, which may be the reasons for affecting the aspect ratio of the flap design.
		                        		
		                        		
		                        		
		                        	
            

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