1.Curative Efficacy Analysis of Allogeneic Hematopoietic Stem Cell Transplantation for Acute Myeloid Leukemia with ASXL1 Mutation.
Ya-Jie SHI ; Xin-Sheng XIE ; Zhong-Xing JIANG ; Ding-Ming WAN ; Rong GUO ; Tao LI ; Xia ZHANG ; Xue LI ; Yu-Pei ZHANG ; Yue SU
Journal of Experimental Hematology 2025;33(3):720-725
OBJECTIVE:
To explore the efficacy and apoptosis of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the treatment of acute myeloid leukemia (AML) with ASXL1 mutation.
METHODS:
The clinical data of 80 AML patients with ASXL1 mutation treated in our hospital from January 2019 to December 2021 were retrospectively analyzed. The clinical characteristics of the patients were summarized, and the therapeutic effect and prognostic factors of allo-HSCT for the patients were analyzed.
RESULTS:
Among the 80 patients, 38 were males and 42 were females, and the median age was 39(14-65) years. There were 17 patients in low-risk group, 25 patients in medium-risk group and 38 patients in high-risk group. ASXL1 mutation co-occurred with many other gene mutations, and the frequent mutated genes were TET2 (71.25%), NRAS (18.75%), DNMT3A (16.25%), NPM1 (15.00%), CEBPA (13.75%). Among medium and high-risk patients, 29 underwent allo-HSCT, while 34 received chemotherapy. The 2-year overall survival (OS) rate and disease-free survival (DFS) rate of the allo-HSCT group were 72.4% and 70.2%, while those of the chemotherapy group were 44.1% and 34.0%, respectively. The statistical analysis showed significant differences between the two groups (both P < 0.01). Multivariate analysis showed that age at transplantation >50- years and occurrence of acute graft-versus-host disease after transplantation were poor prognostic factors for OS and DFS in transplantation patients.
CONCLUSION
Allo-HSCT can improve the prognosis of AML patients with ASXL1 mutation.
Humans
;
Leukemia, Myeloid, Acute/therapy*
;
Hematopoietic Stem Cell Transplantation
;
Female
;
Male
;
Middle Aged
;
Mutation
;
Adult
;
Repressor Proteins/genetics*
;
Adolescent
;
Retrospective Studies
;
Aged
;
Nucleophosmin
;
Young Adult
;
Transplantation, Homologous
;
Prognosis
;
Survival Rate
2.Free flap transfer in treatment of forearm wounds with anterior interosseous vessels as the recipient vessels: a report of 5 cases
Tao ZHOU ; Qiankun WANG ; Liang HE ; Ding ZHOU ; Zifu WANG ; Jun HUANG ; Lin ZHONG ; Yang NIU ; Zhe JIN ; Dong YIN ; Hongxiang ZHOU
Chinese Journal of Microsurgery 2024;47(4):404-409
Objective:To investigate the clinical effect of free flap transfer with anastomosis of anterior interosseous artery and accompanying veins as the recipient vessels in reconstruction of forearm defects.Methods:A retrospective study was conducted on 5 patients who received free flaps transfers with anastomoses of anterior interosseous artery and accompanying veins in reconstruction of forearm defects with exposed bone and tendon in the Department of Orthopaedics of the First Affiliated Hospital of Anhui Medical University between July 2022 and November 2023. All patients were males, aged 31 to 54 years old with an average age of 41.8 years old. Two patients had defects of dorsal ulnar forearm, 2 of distal forearm and 1 of radial palmar forearm. The defected areas after debridement sized 11.0 cm×4.5 cm-20.0 cm×6.0 cm. Free anterolateral thigh perforator flaps (ALTPF), sized 13.0 cm×6.0 cm-22.0 cm×7.0 cm, were used in 4 patients to reconstruct the forearm defects. A free superficial circumflex iliac artery perforator flap was used in 1 patient with the flap sized at 12.0 cm×5.5 cm. All donor sites were directly sutured. Scheduled postoperative follow up was carried out to evaluate the blood supply to the flaps, texture, appearance, fracture healing and the function of the affected limb, as well as the flap sensation according to the criteria for sensory function of British Medical Research Council (BMRC).Results:All 5 patients had received 4 to 16 (mean 8.8) months of follow-up. All flaps survived completely without necrosis or infection. All flaps were good in colour and texture. The blood supply to hands was good, without a symptoms of coldness and fear of cold of hand. At the final follow-up review, sensation of flaps was assessed according to the criteria for sensory function of BMRC and the sensation of the flaps had recovered to S 2~S 3+. The appearance of flaps was good. Conclusion:Free flap with the anterior interosseous artery and accompanying veins as the recipient vessels in the treatment of forearm defects can achieve satisfactory clinical effect, however, further clinical studies are required.
3.Application value of ultrasound-guided multimodal examinations in the diagnosis of lymph node mycobacterial infection
Fengfeng DING ; Lingling XING ; Xiaodong TAO ; Deli MENG ; Meifang XU ; Danping ZHONG ; Fei XU
Chinese Journal of Primary Medicine and Pharmacy 2024;31(1):72-75
Objective:To investigate the application value of ultrasound-guided multimodal examinations in the diagnosis of lymph node mycobacterial infection.Methods:The clinical data of 42 patients with suspected lymph node mycobacterial infection who were initially diagnosed at the Affiliated Hospital of Shaoxing University from January 2019 to December 2020 were retrospectively analyzed. All patients underwent an ultrasound-guided lymph node-negative pressure puncture. Acid-fast staining, bacterial culture, pathological examination or their combination were used to screen lymph nodes for mycobacterial infection. The results were compared with those of acid-fast staining and bacterial culture of sputum and bronchoalveolar lavage fluid smears.Results:The combined application of acid fast staining, bacterial culture, and pathological examination for the puncture fluid smear showed a positive rate of 71.4% (30/42), which was significantly higher than the positive rate [26.2% (11/42)] for acid fast staining of the puncture fluid smear, the positive rate [42.9% (18/42)] for bacterial culture of the puncture fluid, and the positive rate [50.0% (21/42)] of pathological examination ( χ2 = 17.20, 7.00, 4.04, P < 0.001, P < 0.01, P = 0.040). The positive rate for sputum smear and bacterial culture was 21.4% (9/33). The positive rate for acid fast staining and bacterial culture of the bronchoalveolar lavage fluid was 28.6% (12/30). The differences were statistically significant ( χ2 = 21.11, 15.43, both P < 0.001). Conclusion:Ultrasound-guided negative pressure aspiration and puncture biopsy of lymph nodes combined with acid fast staining, bacterial culture, and pathological examinations can markedly increase the detection rate and diagnostic rate of mycobacterial infection.
4.Clinical trial of insulin therapy in elderly patients with coronary heart disease combined with type 2 diabetes
Ya-Tao DING ; Zhong-Hua WANG ; Bo CHEN
The Chinese Journal of Clinical Pharmacology 2024;40(1):3-6
Objective This study aimed to investigate the correlation between insulin resistance score after insulin treatment in elderly patients with coronary heart disease and type 2 diabetes mellitus and cardiovascular outcomes.Methods Elderly patients with coronary heart disease complicated with type 2 diabetes mellitus were selected as the study subjects.All enrolled patients received insulin treatment with an initial dose of 3 U,administered subcutaneously before meals.The total daily dose of insulin was controlled at 0.3-0.8 U·kg-1.The occurrence of major adverse cardiovascular events(MACE)was recorded,and the correlation between insulin resistance score(METS-IR)and cardiovascular outcomes,as well as the predictive value for the occurrence of adverse cardiovascular events was analyzed.Results Before and after insulin treatment in elderly patients with coronary heart disease and type 2 diabetes mellitus,the average body mass index(BMI)were(26.03±3.12)and(25.23±0.02)kg·m-2,triglycerides(TG)were(123.60±21.46)and(113.70±19.75)mg·dL-1,total cholesterol(TC)were(155.80±14.19)and(153.40±13.98)mg·dL-1,low-density lipoprotein cholesterol(LDL-C)were(94.58±9.85)and(91.74±9.56)mg·dL-1,high-density lipoprotein cholesterol(HDL-C)were(46.02±4.47)and(49.73±4.83)mg·dL-1,and fasting blood glucose(FBG)were(98.55±10.58)and(93.62±10.05)mg·dL-1,respectively.The METS-IR scores were 39.26±4.80 and 36.89±4.50,respectively.Except for plasma TC,the differences in the above indicators before and after treatment were statistically significant(all P<0.05).Among the enrolled patients,a total of 48 cases(22.2%)experienced MACE,including 23 cases of hypertension,14 cases of angina pectoris,8 cases of hospitalization for myocardial infarction,3 cases of hospitalization for heart failure.Spearman correlation analysis showed that METS-IR was significantly positively correlated with the incidence of adverse cardiovascular events(P<0.01).ROC curve analysis indicated that METS-IR had a high predictive value for the occurrence of MACE in elderly patients with coronary heart disease and type 2 diabetes mellitus.Conclusion After insulin treatment in elderly patients with coronary heart disease and type 2 diabetes mellitus,METS-IR was significantly positively correlated with the incidence of adverse cardiovascular events and had good predictive value for cardiovascular outcomes.
5.Association between urinary excretion of protein-bound uremic toxins and upper urinary tract calculus
Wenji WANG ; Kaiyi ZHONG ; Jiaolun LI ; Yueling ZHOU ; Tao HUANG ; Lizhu DUAN ; Yuqi SHEN ; Xuezhu LI ; Feng DING ; Danshu XIE
Journal of Shanghai Jiaotong University(Medical Science) 2024;44(5):591-598
Objective·To investigate the relation between urinary excretion of protein-bound uremic toxins(PBUTs)and upper urinary tract calculus.Methods·Residents aged 18?80 years in the community of Haitou,Danzhou city in Hainan Province were recruited.Basic information and diet for the last 3 d of the subjects were recorded.Their fasting sera and 24-hour urine samples were collected,and they also underwent ultrasound examination of kidneys and ureters.The subjects with upper urinary calculi detected by ultrasound or a clear history of upper urinary calculi were selected as the calculus group,and the others as the non-calculus group.The biochemical indicators related to the formation of calculus in blood and urine were detected,and the levels of PBUTs,including indoxyl sufate(IS),indole-3-acetic acid(IAA),and p-cresol sulfate(PCS)in blood and urine,as well as oxalic acid and citric acid in urine were detected by high-performance liquid chromatography.The related factors of upper urinary tract calculus formation were analyzed by multivariate Logistic regression.The correlations of urine PBUTs with urine uric acid,oxalic acid,and citric acid were analyzed by Spearman correlation test.Results·A total of 117 participants were screened out with 54 people in the calculus group and 63 people in the non-calculus group.There were no significant differences between the two groups in terms of gender,age,serum indicators,and prevalence of complications such as hypertension,diabetes,and hyperuricemia/gout.The 24-hour urine pH,calcium,uric acid,and chlorine in the calculus group were significantly higher than those in the non-calculus group(all P<0.05),while IS was significantly lower than that in the non-calculus group(P<0.05).Multivariate Logistic regression analysis showed that urinary IS(OR=0.929,95%CI 0.875?0.986,P=0.016)was related to the calculus formation independently,in addition to urinary calcium.The Spearman correlation analysis results showed that the levels of IAA(r=0.420,P=0.000)and PCS(r=0.307,P=0.001)in 24-hour urine were positively correlated with oxalic acid,PCS was positively correlated with uric acid(r=0.297,P=0.002),and IS was positively correlated with citric acid(r=0.289,P=0.002).Conclusion·In the population,a decrease in urinary excretion of IS may be an independent risk factor for the formation of upper urinary tract calculus,and PBUTs levels are correlated with levels of uric acid,oxalic acid,and citric acid.
6.Efficacy and safety of LY01005 versus goserelin implant in Chinese patients with prostate cancer: A multicenter, randomized, open-label, phase III, non-inferiority trial.
Chengyuan GU ; Zengjun WANG ; Tianxin LIN ; Zhiyu LIU ; Weiqing HAN ; Xuhui ZHANG ; Chao LIANG ; Hao LIU ; Yang YU ; Zhenzhou XU ; Shuang LIU ; Jingen WANG ; Linghua JIA ; Xin YAO ; Wenfeng LIAO ; Cheng FU ; Zhaohui TAN ; Guohua HE ; Guoxi ZHU ; Rui FAN ; Wenzeng YANG ; Xin CHEN ; Zhizhong LIU ; Liqiang ZHONG ; Benkang SHI ; Degang DING ; Shubo CHEN ; Junli WEI ; Xudong YAO ; Ming CHEN ; Zhanpeng LU ; Qun XIE ; Zhiquan HU ; Yinhuai WANG ; Hongqian GUO ; Tiwu FAN ; Zhaozhao LIANG ; Peng CHEN ; Wei WANG ; Tao XU ; Chunsheng LI ; Jinchun XING ; Hong LIAO ; Dalin HE ; Zhibin WU ; Jiandi YU ; Zhongwen FENG ; Mengxiang YANG ; Qifeng DOU ; Quan ZENG ; Yuanwei LI ; Xin GOU ; Guangchen ZHOU ; Xiaofeng WANG ; Rujian ZHU ; Zhonghua ZHANG ; Bo ZHANG ; Wanlong TAN ; Xueling QU ; Hongliang SUN ; Tianyi GAN ; Dingwei YE
Chinese Medical Journal 2023;136(10):1207-1215
BACKGROUND:
LY01005 (Goserelin acetate sustained-release microsphere injection) is a modified gonadotropin-releasing hormone (GnRH) agonist injected monthly. This phase III trial study aimed to evaluated the efficacy and safety of LY01005 in Chinese patients with prostate cancer.
METHODS:
We conducted a randomized controlled, open-label, non-inferiority trial across 49 sites in China. This study included 290 patients with prostate cancer who received either LY01005 or goserelin implants every 28 days for three injections. The primary efficacy endpoints were the percentage of patients with testosterone suppression ≤50 ng/dL at day 29 and the cumulative probability of testosterone ≤50 ng/dL from day 29 to 85. Non-inferiority was prespecified at a margin of -10%. Secondary endpoints included significant castration (≤20 ng/dL), testosterone surge within 72 h following repeated dosing, and changes in luteinizing hormone, follicle-stimulating hormone, and prostate specific antigen levels.
RESULTS:
On day 29, in the LY01005 and goserelin implant groups, testosterone concentrations fell below medical-castration levels in 99.3% (142/143) and 100% (140/140) of patients, respectively, with a difference of -0.7% (95% confidence interval [CI], -3.9% to 2.0%) between the two groups. The cumulative probabilities of maintaining castration from days 29 to 85 were 99.3% and 97.8%, respectively, with a between-group difference of 1.5% (95% CI, -1.3% to 4.4%). Both results met the criterion for non-inferiority. Secondary endpoints were similar between groups. Both treatments were well-tolerated. LY01005 was associated with fewer injection-site reactions than the goserelin implant (0% vs . 1.4% [2/145]).
CONCLUSION:
LY01005 is as effective as goserelin implants in reducing testosterone to castration levels, with a similar safety profile.
TRIAL REGISTRATION
ClinicalTrials.gov, NCT04563936.
Humans
;
Male
;
Antineoplastic Agents, Hormonal/therapeutic use*
;
East Asian People
;
Gonadotropin-Releasing Hormone/agonists*
;
Goserelin/therapeutic use*
;
Prostate-Specific Antigen
;
Prostatic Neoplasms/drug therapy*
;
Testosterone
7.Clinical application of Flow-through bridge anterolateral thigh flap in repair of complex calf soft tissue defects.
Hongxiang ZHOU ; Lin ZHONG ; Liang HE ; Jun HUANG ; Tao ZHOU ; Ding ZHOU ; Zifu WANG ; Dong YIN ; Zhe JIN ; Yang NIU ; Yuyang ZHOU
Chinese Journal of Reparative and Reconstructive Surgery 2023;37(4):482-487
OBJECTIVE:
To investigate the effectiveness of Flow-through bridge anterolateral thigh flap transplantation in the treatment of complex calf soft tissue defects.
METHODS:
The clinical data of the patients with complicated calf soft tissue defects, who were treated with Flow-through bridge anterolateral thigh flap (study group, 23 cases) or bridge anterolateral thigh flap (control group, 23 cases) between January 2008 and January 2022, were retrospectively analyzed. All complex calf soft tissue defects in the two groups were caused by trauma or osteomyelitis, and there was only one major blood vessel in the calf or no blood vessel anastomosed with the grafted skin flap. There was no significant difference between the two groups in general data such as gender, age, etiology, size of leg soft tissue defect, and time from injury to operation ( P>0.05). The lower extremity functional scale (LEFS) was used to evaluate the sufferred lower extremity function of the both groups after operation, and the peripheral blood circulation score of the healthy side was evaluated according to the Chinese Medical Association Hand Surgery Society's functional evaluation standard for replantation of amputated limbs. Weber's quantitative method was used to detect static 2-point discrimination (S2PD) to evaluate peripheral sensation of the healthy side, and the popliteal artery flow velocity, toenail capillary filling time, foot temperature, toe blood oxygen saturation of the healthy side, and the incidence of complications were compared between the two groups.
RESULTS:
No vascular or nerve injury occurred during operation. All flaps survived, and 1 case of partial flap necrosis occurred in both groups, which healed after free skin grafting. All patients were followed up 6 months to 8 years, with a median time of 26 months. The function of the sufferred limb of the two groups recovered satisfactorily, the blood supply of the flap was good, the texture was soft, and the appearance was fair. The incision in the donor site healed well with a linear scar, and the color of the skin graft area was similar. Only a rectangular scar could be seen in the skin donor area where have a satisfactory appearance. The blood supply of the distal limb of the healthy limb was good, and there was no obvious abnormality in color and skin temperature, and the blood supply of the limb was normal during activity. The popliteal artery flow velocity in the study group was significantly faster than that in the control group at 1 month after the pedicle was cut, and the foot temperature, toe blood oxygen saturation, S2PD, toenail capillary filling time, and peripheral blood circulation score were significantly better than those in the control group ( P<0.05). There were 8 cases of cold feet and 2 cases of numbness on the healthy side in the control group, while only 3 cases of cold feet occurred in the study group. The incidence of complications in the study group (13.04%) was significantly lower than that in the control group (43.47%) ( χ 2=3.860, P=0.049). There was no significant difference in LEFS score between the two groups at 6 months after operation ( P>0.05).
CONCLUSION
Flow-through bridge anterolateral thigh flap can reduce postoperative complications of healthy feet and reduce the impact of surgery on blood supply and sensation of healthy feet. It is an effective method for repairing complex calf soft tissue defects.
Humans
;
Thigh/surgery*
;
Plastic Surgery Procedures
;
Leg/surgery*
;
Cicatrix/surgery*
;
Retrospective Studies
;
Soft Tissue Injuries/surgery*
;
Treatment Outcome
;
Lower Extremity/surgery*
;
Skin Transplantation/methods*
;
Perforator Flap
8.Proliferation Inhibitory Activity of Quinones from Blaps rynchopetera Defense Secretion on Colorectal Tumor Cells.
Xiao-Li QIAN ; Di MENG ; Heng LIU ; Chao-He LIU ; Ping ZHOU ; Yin-He YANG ; Jia-Peng WANG ; Huai XIAO ; Zhong-Tao DING
Chinese journal of integrative medicine 2023;29(8):683-690
OBJECTIVE:
To explore the proliferation inhibitory effect of quinones from Blaps rynchopetera defense secretion on colorectal tumor cell lines.
METHODS:
Human colorectal cancer cell HT-29, human colorectal adenocarcinoma cell Caco-2 and normal human colon epithelial cell CCD841 were chosen for the evaluation of inhibitory activity of the main quinones of B. rynchopetera defense secretion, including methyl p-benzoquinone (MBQ), ethyl p-benzoquinone (EBQ), and methyl hydroquinone (MHQ), through methyl thiazolyl tetrazolium assay. The tumor-related factors, cell cycles, related gene expressions and protein levels were detected by enzyme-linked immunosorbent assy, flow cytometry, RT-polymerase chain reaction and Western blot, respectively.
RESULTS:
MBQ, EBQ, and MHQ could significantly inhibit the proliferation of Caco-2, with half maximal inhibitory concentration (IC50) values of 7.04 ± 0.88, 10.92 ± 0.32, 9.35 ± 0.83, HT-29, with IC50 values of 14.90 ± 2.71, 20.50 ± 6.37, 13.90 ± 1.30, and CCD841, with IC50 values of 11.40 ± 0.68, 7.02 ± 0.44 and 7.83 ± 0.05 µg/mL, respectively. Tested quinones can reduce the expression of tumor-related factors tumor necrosis factor α, interleukin (IL)-10, and IL-6 in HT-29 cells, selectively promote apoptosis, and regulate the cell cycle which can reduce the proportion of cells in the G1 phase and increase the proportion of the S phase. Meanwhile, tested quinones could up-regulate mRNA and protein expression of GSK-3β and APC, while down-regulate that of β-catenin, Frizzled1, c-Myc, and CyclinD1 in the Wnt/β-catenin pathway of HT-29 cells.
CONCLUSION
Quinones from B. rynchopetera defense secretion could inhibit the proliferation of colorectal tumor cells and reduce the expression of related factors, which would be functioned by regulating cell cycle, selectively promoting apoptosis, and affecting Wnt/β-catenin pathway-related mRNA and protein expressions.
Humans
;
beta Catenin/metabolism*
;
Caco-2 Cells
;
Quinones/pharmacology*
;
Glycogen Synthase Kinase 3 beta/metabolism*
;
Cell Proliferation
;
Colorectal Neoplasms/metabolism*
;
Cell Line, Tumor
;
Apoptosis
;
Benzoquinones/pharmacology*
;
RNA, Messenger
;
Wnt Signaling Pathway
9.Characteristics of Traditional Chinese Medicine Syndromes and Treatments of COVID-19 Patients from Two Hospitals Based on “Treatment of Disease in Accordance with Three Conditions”
Xiao-hua XU ; Heng WENG ; Ze-hui HE ; Huai-ti WANG ; Li LI ; Yun-tao LIU ; Li-juan TANG ; Xin YIN ; Bang-han DING ; Jian-wen GUO ; Zhong-de ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(4):172-180
ObjectiveTo explore the guidance value of “treatment of disease in accordance with three conditions” theory in the prevention and treatment of corona virus disease 2019(COVID-19) based on the differences of syndromes and traditional Chinese medicine(TCM) treatments in COVID-19 patients from Xingtai Hospital of Chinese Medicine of Hebei province and Ruili Hospital of Chinese Medicine and Dai Medicine of Yunnan province and discuss its significance in the prevention and treatment of the unexpected acute infectious diseases. MethodDemographics data and clinical characteristics of COVID-19 patients from the two hospitals were collected retrospectively and analyzed by SPSS 18.0. The information on formulas was obtained from the hospital information system (HIS) of the two hospitals and analyzed by the big data intelligent processing and knowledge service system of Guangdong Hospital of Chinese Medicine for frequency statistics and association rules analysis. Heat map-hierarchical clustering analysis was used to explore the correlation between clinical characteristics and formulas. ResultA total of 175 patients with COVID-19 were included in this study. The 70 patients in Xingtai,dominated by young and middle-aged males,had clinical symptoms of fever, abnormal sweating,and fatigue. The main pathogenesis is stagnant cold-dampness in the exterior and impaired yin by depressed heat, with manifest cold, dampness, and deficiency syndromes. The therapeutic methods highlight relieving exterior syndrome and resolving dampness, accompanied by draining depressed heat. The core Chinese medicines used are Poria,Armeniacae Semen Amarum,Gypsum Fibrosum,Citri Reticulatae Pericarpium,and Pogostemonis Herba. By contrast,the 105 patients in Ruili, dominated by young females, had atypical clinical symptoms, and most of them were asymptomatic patients or mild cases. The main pathogenesis is dampness obstructing the lung and the stomach, with obvious dampness and heat syndromes. The therapeutic methods are mainly invigorating the spleen, resolving dampness, and dispersing Qi with light drugs. The core Chinese medicines used are Poria,Atractylodis Macrocephalae Rhizoma,Glycyrrhizae Radix et Rhizoma,Coicis Semen,Platycodonis Radix,Lonicerae Japonicae Flos, and Pogostemonis Herba. ConclusionThe differences in clinical characteristics, TCM syndromes, and medication of COVID-19 patients from the two places may result from different regions,population characteristics, and the time point of the COVID-19 outbreak. The “treatment of disease in accordance with three conditions” theory can help to understand the internal correlation and guide the treatments.
10.Repair of complex soft tissue defect in calf by ALTF with a cross-limb bridged "Y" shape vascular anastomosis: a report of 33 cases
Hongxiang ZHOU ; Liang HE ; Dong YIN ; Zhe JIN ; Yang NIU ; Zifu WANG ; Jun HUANG ; Tao ZHOU ; Ding ZHOU ; Lin ZHONG
Chinese Journal of Microsurgery 2022;45(1):28-32
Objective:To explore the clinical effect of ALTF transfer with cross-limb bridged "Y" shape vascular anastomosis in repair of complex soft tissue defects in calf.Methods:From August 2010 to September 2020, 33 patients(23 males and 10 females) with complex traumatic soft tissue defects in calf were treated. Preoperative angiography and intraoperative exploration confirmed that there was only 1 main vessel remained in the affected calf or the wound surface and the vessel could not be anastomosed with the vascular pedicle of the ALTF. The size of flap were 16 cm × 8 cm to 25 cm × 18 cm. Two patients received bilobed ALTFs. A "Y" shape anastomosis between the artery of ALTF vascular pedicle and the posterior tibial artery of the contralateral lower limbs was made in all 33 patients to establish the blood supply to the transferred free ALTF. The "Y" shape cross-limb bridged blood vessels at the proximal end of the vascular pedicle artery of the flap were embedded at both ends of the cut-off superior ankle posterior tibial artery of the contralateral lower limb. The vein of the flap was anastomosed with the saphenous vein that associates with the posterior tibial artery. The surface of the suspended blood vessel "bridge" was wrapped with a free skin craft, and the lower limbs were fixed in a straight and parallel position with an external fixation frame. The perfused area of the flap was directly sutured or covered with a free skin craft. The vascular bridge was kept for 3 to 6 weeks before being separated. Outpatient follow-up after discharge.Results:All the patients were entered the postoperative follow-up was 13 months to 7 years, in an average of 25 months. Among the 33 flaps, 31 survived completely, except 1 had necrosis and the other 1 had partial necrosis at the distal end of the flap. The flaps received good blood supply, hence with soft texture and satisfactory appearance. Doppler or DSA was performed after the surgery on the posterior tibial artery of the healthy limb, and the vascular pulsation and patency were found normal. Donor sites for the free skin graft healed well.Conclusion:The ALTF transfer with cross-limb bridged "Y" vascular anastomosis is one of the effective techniques and it was employed in the repair of complex defects of calf soft tissue. It solved the tissue that there was only 1 main vessel or even without a suitable vessel could be anastomosed with the pedicle of the flap.

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