1.Effects of electroacupuncture at pterygopalatine region on NLRP3-mediated pyroptosis and inflammatory factors in allergic rhinitis rats.
Haiyang LV ; Meihui TIAN ; Shuyi SHE ; Yucheng LIU ; Lei SUN ; Wu SONG ; Yong TANG
Chinese Acupuncture & Moxibustion 2025;45(3):345-350
OBJECTIVE:
To observe the effects of electroacupuncture at the pterygopalatine region on nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3)-mediated pyroptosis and inflammatory factors in rats with allergic rhinitis (AR).
METHODS:
Twenty-four SD rats were randomly divided into a blank group, a model group, an acupuncture group and an electroacupuncture group, 6 rats in each group. Except for the blank group, OVA-induced AR model was established in the remaining groups. In the electroacupuncture group, the rats were treated with electroacupuncture at the bilateral pterygopalatine region, with disperse-dense wave, in frequency of 2 Hz/100 Hz and current of 0.5-1 mA, 15 min each time, once every other day, for 3 times. In the acupuncture group, the rats were treated with acupuncture at bilateral pterygopalatine region simply, without electrical stimulation. The rhinitis symptom score was observed, the pathomorphology of the nasal mucosa was observed by HE staining; the serum levels of OVA-specific immunoglobulin E (OVA-sIgE), interleukin (IL)-4, IL-6 and IL-1β were detected by ELISA; the mRNA expression of NLRP3, apoptosis-associated speck-like protein containing CARD (ASC), cysteinyl aspartate specific proteinase-1 (caspase-1) and IL-18 in the nasal mucosa was detected by real-time PCR; the protein expression of NLRP3, ASC, caspase-1 and IL-18 in the nasal mucosa was detected by Western blot.
RESULTS:
Compared with the blank group, in the model group, the rhinitis symptom score was increased (P<0.01), the serum levels of OVA-sIgE, IL-4, IL-6 and IL-1β were increased (P<0.05), the nasal mucosa showed pathomorphology of inflammatory infiltration; the mRNA and protein expression of NLRP3, ASC, caspase-1 and IL-18 in the nasal mucosa was increased (P<0.05). Compared with the model group, in the electroacupuncture group, the rhinitis symptom score was reduced (P<0.01), the pathology of the nasal mucosa was improved; the serum levels of OVA-sIgE, IL-4, IL-6 and IL-1β were decreased (P<0.05); the mRNA and protein expression of NLRP3, ASC, caspase-1 and IL-18 in the nasal mucosa was decreased (P<0.05).
CONCLUSION
Electroacupuncture at the pterygopalatine region can exerting the anti-inflammatory effect by inhibiting NLRP3-mediated pyroptosis and inflammatory factor imbalance, thus alleviate rhinitis symptoms in AR rats.
Animals
;
Electroacupuncture
;
NLR Family, Pyrin Domain-Containing 3 Protein/immunology*
;
Rats
;
Rats, Sprague-Dawley
;
Rhinitis, Allergic/physiopathology*
;
Pyroptosis
;
Male
;
Acupuncture Points
;
Humans
;
Female
;
Interleukin-1beta/genetics*
;
Interleukin-18/immunology*
;
Interleukin-6/genetics*
;
Caspase 1/immunology*
2.Expert consensus on the application of nasal cavity filling substances in nasal surgery patients(2025, Shanghai).
Keqing ZHAO ; Shaoqing YU ; Hongquan WEI ; Chenjie YU ; Guangke WANG ; Shijie QIU ; Yanjun WANG ; Hongtao ZHEN ; Yucheng YANG ; Yurong GU ; Tao GUO ; Feng LIU ; Meiping LU ; Bin SUN ; Yanli YANG ; Yuzhu WAN ; Cuida MENG ; Yanan SUN ; Yi ZHAO ; Qun LI ; An LI ; Luo BA ; Linli TIAN ; Guodong YU ; Xin FENG ; Wen LIU ; Yongtuan LI ; Jian WU ; De HUAI ; Dongsheng GU ; Hanqiang LU ; Xinyi SHI ; Huiping YE ; Yan JIANG ; Weitian ZHANG ; Yu XU ; Zhenxiao HUANG ; Huabin LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(4):285-291
This consensus will introduce the characteristics of fillers used in the surgical cavities of domestic nasal surgery patients based on relevant literature and expert opinions. It will also provide recommendations for the selection of cavity fillers for different nasal diseases, with chronic sinusitis as a representative example.
Humans
;
Nasal Cavity/surgery*
;
Nasal Surgical Procedures
;
China
;
Consensus
;
Sinusitis/surgery*
;
Dermal Fillers
3.Chinese expert consensus on the evaluation of allergen-specific immunotherapy outcomes(Wuhan, 2025).
Yuqin DENG ; Xi LUO ; Zhuofu LIU ; Shuguang SUN ; Jing YE ; Tiansheng WANG ; Jianjun CHEN ; Meiping LU ; Yin YAO ; Ying WANG ; Wei ZHOU ; Bei LIU ; Qingxiang ZENG ; Yuanteng XU ; Qintai YANG ; Yucheng YANG ; Feng LIU ; Chengli XU ; Yanan SUN ; Haiyu HONG ; Haibo YE ; Liqiang ZHANG ; Fenghong CHEN ; Huabin LI ; Hongtian WANG ; Yuncheng LI ; Wenlong LIU ; Yu XU ; Hongfei LOU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(11):1075-1085
Allergen-specific immunotherapy(AIT) remains the only therapeutic approach with the potential to modify the natural course of allergic rhinitis(AR). Nevertheless, considerable inter-individual variability exists in patients'responses to AIT. To facilitate more reliable assessment of treatment efficacy, the China Rhinopathy Research Cooperation Group(CRRCG) convened young and middle-aged nasal experts in China to formulate the present consensus. The recommended subjective outcome measures for AIT comprise symptom scores, medication scores, combined symptom and medication scores, quality-of-life assessments, evaluation of disease control, and assessment of comorbidities. Objective indicators may supplement these measures. Currently available objective approaches include skin prick testing, nasal provocation testing, and allergen exposure chambers. However, these methods remain constrained by practical limitations and are not yet appropriate for routine implementation in clinical efficacy evaluation. In addition, several biomarkers, including sIgE and the sIgE/tIgE ratio, sIgG4, serum IgE-blocking activity, IgA, cytokines and chemokines, as well as immune cell surface molecules and their functional activity, have been shown to have associations with AIT outcomes. While these biomarkers may complement subjective assessments, they are subject to significant limitations. Consequently, large-scale multicenter trials and real-world evidence are required to strengthen the evidence base. The present consensus underscores the necessity of integrating patients'subjective experiences with objective testing throughout the treatment process, thereby providing a more comprehensive and accurate framework for efficacy evaluation. Looking forward, future investigations should prioritize the incorporation of multi-omics data and artificial intelligence methodologies, which hold promise for overcoming current limitations in assessment strategies and for advancing both the standardization and personalization of AIT.
Humans
;
Allergens/immunology*
;
China
;
Consensus
;
Desensitization, Immunologic
;
Immunoglobulin E
;
Quality of Life
;
Rhinitis, Allergic/therapy*
;
Treatment Outcome
;
East Asian People
4.Comparison of reflux characteristics between grade A and grades B/C reflux esophagitis based on esophageal pH-impedance monitoring
Sihui LIN ; Zhilong CHEN ; Yucheng ZHU ; Wei JIANG ; Dalong SUN
Chinese Journal of Clinical Medicine 2024;31(6):918-924
Objective To compare the reflux characteristics between reflux esophagitis (RE) patients with Los Angeles (LA) classification grade A and grades B/C based on esophageal pH-impedance monitoring results. Methods A total of 74 RE patients at Zhongshan Hospital (Xiamen Branch), Fudan University from June 2021 to June 2024 were enrolled, and were divided into the LA-A group (n=46) and the LA-B/C group (n=28) based on the endoscopic diagnosis results. The general clinical data, symptom questionnaire score, and esophageal 24-hour pH-impedance monitoring results were compared between the two groups. Results There were no statistically significant differences in demographic data and the response rate of acid suppression therapy between the two groups. 24-hour esophageal pH-impedance monitoring results showed that there were no statistically significant differences in upright, supine, and total reflux indices, including reflux episodes, acid exposure time (AET), AET percentage (AET%), long acid reflux episodes, longest reflux duration, and total DeMeester score between the two groups. There were no statistically significant differences in distal reflux episodes, proximal reflux episodes, and high reflux (acid, weak acid, and non-acidic reflux) episodes, mean nocturnal baseline impedance (MNBI) between the two groups. The rates of pathological reflux (AET%≥6%) in LA-A group and LA-B/C group were 67.4% and 71.4%, respectively; there were no statistically significant differences in the ratio of AET% composition and the count of impedance reflux exceeding 80 during 24 h between the two groups. Conclusions LA-A grade RE based on the endoscopic diagnosis facilitates the identification of gastroesophageal reflux disease in the Chinese population
5.Correlation of relative cross-sectional area of lumbar paravertebral muscle and psoas with lumbar curvature and its clinical significance
Hailiang SUN ; Yucheng HUANG ; Weijie HUANG ; Jinse CHEN ; Ying SHI
Chinese Journal of Primary Medicine and Pharmacy 2024;31(6):890-894
Objective:To investigate the correlation of relative cross-sectional area of lumbar paravertebral muscle and psoas with lumbar curvature and its clinical significance.Methods:This study was conducted as a retrospective cross-sectional study. Among the patients treated at the Department of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine from January to April 2023, 107 middle-aged and young patients with changes in lumbar physiological curvature or no apparent abnormalities were included in this study based on MRI findings. The relative cross-sectional area (RCSA) values of the left and right paravertebral muscles and psoas were measured at the lower margin of the L3 vertebral body and at the L3/L4, L4/L5, and L5/S1 intervertebral discs. Furthermore, the correlation between these RCSA values and lumbar curvature was analyzed.Results:The 107 patients were (30.51 ± 4.64) years old, and the proportion of females accounted for 71.96%. There were differences in RCSA between the lower margin of L3, L3/L4, L4/L5, and L5/S1 intervertebral discs (left psoas F = 30.21, P < 0.001; right psoas F = 31.63, P < 0.001; left paravertebral muscle F = 31.04, P < 0.001; right paravertebral muscle F = 26.55, P < 0.001). From L3 to S1, the RCSA of the psoas increased, while the RCSA of the paravertebral muscle decreased. The RCSA values of the total paravertebral muscle/RCSA values of the total psoas major muscle were positively correlated with lumbar curvature at the lower margin of the L3 vertebral body ( r = 0.40, P < 0.001). This correlation could be seen at both L3/L4 ( r = 0.31, P = 0.001) and L4/L5 ( r = 0.24, P = 0.012). However, after considering the influence of left and right muscle groups on lumbar curvature, there was no correlation between the muscle cross-sectional area at the L5/S1 disc position and lumbar curvature ( P > 0.05). Nevertheless, there was still a correlation between the muscle cross-sectional area at other lumbar segments ( P < 0.05). Conclusion:An increase in the RCSA of the psoas relative to the paraspinal muscle may lead to straightening of the lumbar spine curvature, whereas an increase in the RCSA of the paraspinal muscle relative to the psoas may result in an increase in lumbar spine curvature. Improving the quality of the paraspinal muscle may restore the physiological curvature of the lumbar spine, which holds clinical application value.
6.Short-term clinical and echocardiographic outcomes of the novel domestic transcatheter edge-to-edge repair Neonova? system in patients with mitral regurgitation
Yun YANG ; He LI ; Wenqian WU ; Xiaoke SHANG ; Shu CHEN ; Yucheng ZHONG ; Manwei LIU ; Lin HE ; Zhenxing SUN ; Ziming ZHANG ; Yi ZHOU ; Xin ZHANG ; Nianguo DONG ; Lingyun FANG ; Mingxing XIE
Chinese Journal of Ultrasonography 2023;32(1):51-59
Objective:To investigate short-term safety, efficacy and the learning curve of this self-developed novel transcatheter valve repair system (Neonova?) in patients with mitral regurgitation, and explore the role of perioperative echocardiography.Methods:Ten patients who visited the Union Hospital of Tongji Medical College, Huazhong University of Science and Technology from June 2021 to March 2022 and met the inclusive criteria were prospectively enrolled. All the patients were at high risk of surgery with moderate to severe or severe mitral regurgitation (MR). Clamps of Neonova? were implanted under guidance of transesophageal echocardiography and digital subtraction angiography. Clinical outcomes, echocardiography indexes and learning curves of this technique were evaluated immediately after intervention, 7 d, 1 month and 3 months post-intervention.Results:The technical success rate was 100% with MR relieved in all patients immediately after intervention. The device and procedural success rates were both 90.0% with 1 patient received surgical replacement at 37 days post-intervention while the others′ reduced to mild (8/9) and moderate (1/9) MR. New York Heart Association class and the Kansas City Cardiomyopathy Questionnaire improved significantly (all P<0.001). Mean mitral valve pressure gradient didn′t increase significantly after intervention when compared with that before intervention( P=0.324), and no mitral stenosis was observed. Left ventricular end-diastolic diameter decreased significantly ( P=0.008) during follow up.Procedure duration ranged from 60 to 300 (175.8±75.2)minutes. The simple linear regression model between procedure volume and duration showed that procedure duration decreased significantly with the increase of procedure volume ( F=15.857, P=0.004). Conclusions:Neonova? implantation can improve MR severity and clinical symptoms safely and effectively. Transthoracic echocardiography and transesophageal echocardiography are essential for perioperative management of transcatheter mitral valve repair.
7.Feasibility of Free-Breathing, Non-ECG-Gated, Black-Blood Cine Magnetic Resonance Images With Multitasking in Measuring Left Ventricular Function Indices
Pengfei PENG ; Xun YUE ; Lu TANG ; Xi WU ; Qiao DENG ; Tao WU ; Lei CAI ; Qi LIU ; Jian XU ; Xiaoqi HUANG ; Yucheng CHEN ; Kaiyue DIAO ; Jiayu SUN
Korean Journal of Radiology 2023;24(12):1221-1231
Objective:
To clinically validate the feasibility and accuracy of cine images acquired through the multitasking method, with no electrocardiogram gating and free-breathing, in measuring left ventricular (LV) function indices by comparing them with those acquired through the balanced steady-state free precession (bSSFP) method, with multiple breath-holds and electrocardiogram gating.
Materials and Methods:
Forty-three healthy volunteers (female:male, 30:13; mean age, 23.1 ± 2.3 years) and 36 patients requiring an assessment of LV function for various clinical indications (female:male, 22:14; 57.8 ± 11.3 years) were enrolled in this prospective study. Each participant underwent cardiac magnetic resonance imaging (MRI) using the multiple breath-hold bSSFP method and free-breathing multitasking method. LV function parameters were measured for both MRI methods. Image quality was assessed through subjective image quality scores (1 to 5) and calculation of the contrast-to-noise ratio (CNR) between the myocardium and blood pool. Differences between the two MRI methods were analyzed using the Bland–Altman plot, paired t-test, or Wilcoxon signed-rank test, as appropriate.
Results:
LV ejection fraction (LVEF) was not significantly different between the two MRI methods (P = 0.222 in healthy volunteers and P = 0.343 in patients). LV end-diastolic mass was slightly overestimated with multitasking in both healthy volunteers (multitasking vs. bSSFP, 60.5 ± 10.7 g vs. 58.0 ± 10.4 g, respectively; P < 0.001) and patients (69.4 ± 18.1 g vs. 66.8 ± 18.0 g, respectively; P = 0.003). Acceptable and comparable image quality was achieved for both MRI methods (multitasking vs. bSSFP, 4.5 ± 0.7 vs. 4.6 ± 0.6, respectively; P = 0.203). The CNR between the myocardium and blood pool showed no significant differences between the two MRI methods (18.89 ± 6.65 vs. 18.19 ± 5.83, respectively; P = 0.480).
Conclusion
Multitasking-derived cine images obtained without electrocardiogram gating and breath-holding achieved similar image quality and accurate quantification of LVEF in healthy volunteers and patients.
8.Morphological study on the transverse branch of lateral femoral circumflex artery based on digital subtraction angiography
Yongtao HUANG ; Lin YANG ; Yang CAO ; Yucheng LIU ; Qinfeng GAO ; Chengpeng YANG ; Fengwen SUN ; Junnan CHENG ; Tao ZHANG ; Jihui JU
Chinese Journal of Burns 2023;39(4):337-342
Objective:To summarize the morphological characteristics of the transverse branch of lateral femoral circumflex artery (LFCA) using digital subtraction angiography (DSA) and explore its clinical significance.Methods:A retrospective observational study was conducted. From October 2020 to May 2021, 62 patients with soft tissue injuries in the extremities were hospitalized in Suzhou Ruihua Orthopedic Hospital, including 40 males and 22 females, aged from 20 to 72 years. DSA was performed in the lateral femoral region of patients before the anterolateral thigh flap transplantation, and in combination with imaging scale to observe and measure the general condition of the blood vessels and the occurrence (with the occurrence rate being calculated), source artery, location of the origin point, direction of course, and the location of the perforating point of the cutaneous perforator of the transverse branch of LFCA, and in addition to classify the morphological characteristics of the transverse branch.Results:DSA detection showed that the femoral artery, the deep femoral artery, and the branches of LFCA were clearly distinguishable in 62 patients. Transverse branches of LFCA were observed in 59 patients, including 52 cases with a single transverse branch, and 7 cases with double transverse branches. The occurrence rate of transverse branches was 95.2% (59/62). A total of 66 transverse branches of LFCA were observed, of which 3 originated from the deep femoral artery, and 63 originated from the LFCA. The origin point of the transverse branch was 6.5-12.7 cm away from the anterior superior iliac spine. The transverse branch which was approximately perpendicular to the long axis of the body, originated outwards, ran between the ascending branch of LFCA and the oblique branch of LFCA, and branched along the way, with the trunk running under the greater trochanter. The perforating point of the cutaneous perforator of the transverse branch was 8.0-18.0 cm away from the anterior superior iliac spine. In the classification of morphological characteristics of the transverse branch of LFCA, the most common type was the one that originated from the same trunk with other branches of LFCA, accounting for 50.0% (31/62), followed by the one that originated from the singular trunk of LFCA (12 cases) or deep femoral artery (3 cases), accounting for 24.2% (15/62); the special type accounted for 21.0% (13/62), including 7 cases of double transverse branches and 6 cases of the transverse branch originated from the same trunk with multiple other branches of LFCA; those with small/absent transverse branch only accounted for 4.8% (3/62). Among the above-mentioned common trunk relationship of two branches, those with shared trunk of ascending and transverse branches were most frequently observed, accounting for 77.4% (24/31); those with shared trunks of the transverse and oblique branches (5 cases) and the transverse and descending branches (2 cases) accounted for 22.6% (7/31) altogether.Conclusions:A high incidence rate of the transverse branch of LFCA is observed through DSA. The transverse branch originates from the lateral femoral artery approximately perpendicular to the long axis of the body, mainly from the same trunk with another main branch of LFCA, especially the ascending branch. This positioning analysis can provide an important reference for the design and resection of anterolateral femoral flaps.
9.Distribution characteristics and clinical application of perforators of anterolateral thigh flap pedicled with oblique branch of lateral circumflex femoral artery
Lin YANG ; Yang CAO ; Junnan CHENG ; Yongtao HUANG ; Zhijin LIU ; Qinfeng GAO ; Chengpeng YANG ; Fengwen SUN ; Yucheng LIU ; Jihui JU
Chinese Journal of Plastic Surgery 2023;39(5):463-471
Objective:To explore the distribution characteristics of the perforators of the oblique branch of the lateral circumflex femoral artery, and to report the clinical effect of the anterolateral thigh flap pedicled with the oblique branch in repairing the wounds of the extremities.Methods:The clinical data of the patients with anterolateral thigh flap pedicled with oblique branch of lateral circumflex femoral artery in Suzhou Ruihua Orthopaedic Hospital from December 2020 to April 2021 were analyzed retrospectively. High frequency color Doppler ultrasound was used to detect the large perforators of the oblique branch of the lateral circumflex femoral artery near the midpoint of the line between the anterior superior iliac spine and the lateral margin of the patella. With reference to the location of the perforators, according to the size and shape of the defect in the recipient area, the anterolateral thigh flap pedicled with oblique branch was designed and dissected to repair the wound. During the operation, the distance between the emitting point of the main oblique branch, the skin entry point of the perforators and the anterior superior iliac spine was measured with a steel ruler, the diameter of the perforators was measured with a microscale, and the number of perforators was counted. The survival and complications of the flap were observed and followed up after operation. In the last follow-up, the comprehensive evaluation scale was used to evaluate the repair effect: 90 to 100 points is excellent, 75 to 89 points is good, 60 to 74 points is average, and less than 60 points is poor.Results:A total of 84 patients were included, including 62 males and 22 females, aged from 14 to 82 years (mean 46.9 years), including 32 cases of hand wounds, 6 cases of forearm wounds, 3 cases of upper arm wounds, 10 cases of calves and 33 cases of foot and ankle wounds. The wound area was 6 cm × 4 cm-20 cm × 45 cm. A total of 88 flaps were removed in 84 patients (skin flaps on both thighs were removed in 4 patients). The size of the skin flap of 88 thighs was 7 cm × 5 cm-37 cm × 11 cm, of which 85 sides of 82 cases survived completely. One case of diabetes had complete necrosis 1 month after operation, and 1 case of 34 cm had necrosis of the distal end of 3 cm × 3 cm skin flap. Necrotic skin flaps were repaired with skin grafting. Four patients developed arterial crisis within 24 hours after operation, and those flaps survived after surgical exploration. All donor areas healed. During the follow-up of 6 to 9 months, the shape of the recipient area was normal in all patients, and there was no deep tissue infection such as osteomyelitis. The color and texture of all flaps were good. The sensation returned to S1-S2 after operation. The skin flap comprehensive evaluation scale was used to evaluate the repair effect. The patients’ score ranged from 73 to 94 points, with an average of 88.1 points. Including 33 excellent cases, 46 good cases and 5 average cases, the excellent and good rate was 94.0%(79/84). A total of 215 perforators were marked with 88 flaps before operation, and 208 perforators were found during the operation(the diameter of the perforators was 0.4-1.5 mm), of which 130 were sent out by oblique branches. There were perforators of the oblique branch in all flaps, with an average of 1.5 on each side, including 84(64.6%) septocutaneous perforators and 46(35.4%) musculocutaneous perforators. Most of the oblique branches originate from the lateral circumflex femoral artery, which runs in the intermuscular septum between the rectus femoris and the intermediate femoris muscle. It is divided into deep branches and superficial branches at the middle and upper 1/3 junction of the line between the anterior superior iliac spine and the lateral margin of the patella. The skin perforators of the oblique branch of the lateral circumflex femoral artery is mostly sent out from the superficial branch, and there are 118 perforators located at the midpoint and proximal end of the line between the anterior superior iliac spine and the lateral margin of the patella, accounting for 90.8% (118/130), reaching a peak at 0.4 (there are 37 perforators).Conclusion:The oblique branch of the lateral circumflex femoral artery is relatively constant, and most of the perforators are located near the midpoint of the line between the anterior superior iliac spine and the lateral margin of the patella, and the proportion of septocutaneous perforator is high. The distribution of perforator is regular, the blood supply is reliable, the application mode is flexible, and the donor site position is more concealed while the blood supply of the flap is secured.
10.Distribution characteristics and clinical application of perforators of anterolateral thigh flap pedicled with oblique branch of lateral circumflex femoral artery
Lin YANG ; Yang CAO ; Junnan CHENG ; Yongtao HUANG ; Zhijin LIU ; Qinfeng GAO ; Chengpeng YANG ; Fengwen SUN ; Yucheng LIU ; Jihui JU
Chinese Journal of Plastic Surgery 2023;39(5):463-471
Objective:To explore the distribution characteristics of the perforators of the oblique branch of the lateral circumflex femoral artery, and to report the clinical effect of the anterolateral thigh flap pedicled with the oblique branch in repairing the wounds of the extremities.Methods:The clinical data of the patients with anterolateral thigh flap pedicled with oblique branch of lateral circumflex femoral artery in Suzhou Ruihua Orthopaedic Hospital from December 2020 to April 2021 were analyzed retrospectively. High frequency color Doppler ultrasound was used to detect the large perforators of the oblique branch of the lateral circumflex femoral artery near the midpoint of the line between the anterior superior iliac spine and the lateral margin of the patella. With reference to the location of the perforators, according to the size and shape of the defect in the recipient area, the anterolateral thigh flap pedicled with oblique branch was designed and dissected to repair the wound. During the operation, the distance between the emitting point of the main oblique branch, the skin entry point of the perforators and the anterior superior iliac spine was measured with a steel ruler, the diameter of the perforators was measured with a microscale, and the number of perforators was counted. The survival and complications of the flap were observed and followed up after operation. In the last follow-up, the comprehensive evaluation scale was used to evaluate the repair effect: 90 to 100 points is excellent, 75 to 89 points is good, 60 to 74 points is average, and less than 60 points is poor.Results:A total of 84 patients were included, including 62 males and 22 females, aged from 14 to 82 years (mean 46.9 years), including 32 cases of hand wounds, 6 cases of forearm wounds, 3 cases of upper arm wounds, 10 cases of calves and 33 cases of foot and ankle wounds. The wound area was 6 cm × 4 cm-20 cm × 45 cm. A total of 88 flaps were removed in 84 patients (skin flaps on both thighs were removed in 4 patients). The size of the skin flap of 88 thighs was 7 cm × 5 cm-37 cm × 11 cm, of which 85 sides of 82 cases survived completely. One case of diabetes had complete necrosis 1 month after operation, and 1 case of 34 cm had necrosis of the distal end of 3 cm × 3 cm skin flap. Necrotic skin flaps were repaired with skin grafting. Four patients developed arterial crisis within 24 hours after operation, and those flaps survived after surgical exploration. All donor areas healed. During the follow-up of 6 to 9 months, the shape of the recipient area was normal in all patients, and there was no deep tissue infection such as osteomyelitis. The color and texture of all flaps were good. The sensation returned to S1-S2 after operation. The skin flap comprehensive evaluation scale was used to evaluate the repair effect. The patients’ score ranged from 73 to 94 points, with an average of 88.1 points. Including 33 excellent cases, 46 good cases and 5 average cases, the excellent and good rate was 94.0%(79/84). A total of 215 perforators were marked with 88 flaps before operation, and 208 perforators were found during the operation(the diameter of the perforators was 0.4-1.5 mm), of which 130 were sent out by oblique branches. There were perforators of the oblique branch in all flaps, with an average of 1.5 on each side, including 84(64.6%) septocutaneous perforators and 46(35.4%) musculocutaneous perforators. Most of the oblique branches originate from the lateral circumflex femoral artery, which runs in the intermuscular septum between the rectus femoris and the intermediate femoris muscle. It is divided into deep branches and superficial branches at the middle and upper 1/3 junction of the line between the anterior superior iliac spine and the lateral margin of the patella. The skin perforators of the oblique branch of the lateral circumflex femoral artery is mostly sent out from the superficial branch, and there are 118 perforators located at the midpoint and proximal end of the line between the anterior superior iliac spine and the lateral margin of the patella, accounting for 90.8% (118/130), reaching a peak at 0.4 (there are 37 perforators).Conclusion:The oblique branch of the lateral circumflex femoral artery is relatively constant, and most of the perforators are located near the midpoint of the line between the anterior superior iliac spine and the lateral margin of the patella, and the proportion of septocutaneous perforator is high. The distribution of perforator is regular, the blood supply is reliable, the application mode is flexible, and the donor site position is more concealed while the blood supply of the flap is secured.

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