Objective:To explore the clinical effect of perforator pedicled propeller flap (PPPF) in reconstruction of soft tissue defect in ankle and foot, as well as the role of preoperative ultrasonography in assistance of the location of perforators in donor site.Methods:From January 2017 to June 2023, the Department of Microorthopedics of the Second Affiliated Hospital of Luohe Medical College of Higher Education applied PPPF to reconstruct small and medium-sized soft tissue defects in the ankle and foot for 26 patients. The patients were 17 males, 9 females, aged 18 to 68 years old with 46 years old in average. The defect sites were 3 in forefoot and 6 in midfoot and combined with different degrees of tendon and bone exposure, 17 in ankle and heel and combined with various degrees of bone exposure, 12 with ankle open injury and 5 with Achilles tendon exposure. The area of soft tissue defects ranged from 2.5 cm×1.5 cm to 16.0 cm × 6.5 cm. The width of injury was measured before surgery, and a HHD was used to detect the perforators proximal to the defect site, and then high-frequency CDU was used to locate and confirm the location of the perforator and its alignment, blood flow and diameter. The line drawn between the 2 perforators was set as the axis of flap. The donor site was assessed by a "pinching and lifting" method to determine a direct closure of donor site or to have it closed by a flap transfer. The sizes of flap were from 2.8 cm×1.5 cm to 24.0 cm×7.5 cm. Twenty-two donor sites were directly closed and 4 received flap transfers. Four flaps had sutures with the skin nerves in the recipient site. Masquelet technique was performed in 6 patients with bone defects in the surgery. Patients received outpatient reviews with 1-2 weeks of intervals in the first 2 months after surgery, and X-ray reviews per 1-2 months for those with bone implants until bone healing.Results:All flaps survived successfully without any special treatment after surgery, except 1 flap that had blood vessel congestion and showed swelling and poor blood supply to the distal flap at 24 hours after surgery. The blood vessel congestion was revised by removal of part of the suture at the tip of flap pedicle. One week later, the tip of the flap remained with a small area of necrosis, which was then healed after dressing changes. A total of 21 patients were included in postoperative follow-up with 4 months to 3 years. All of the flaps had satisfactory appearance, colour and texture, and without any ulceration. Three cases of nerve suture were also included in follow-up. According to the assessment criteria of British Medical Research Council (BMRC), the sensory recovery of the flaps was found of S 2 in 1 flap and S 3 in 2 flaps. According to the American Orthopaedic Foot and Ankle Society (AOFAS), the ankle-hindfoot function scores, there were excellent in 16 patient and good in 5 patients. Conclusion:With the assistance of ultrasound, the PPPF can be effectively used in reconstruction of soft tissue defects in ankle and foot.

Objective:To explored the clinical characteristics and risk factors of acute kidney injury (AKI) caused by vancomycin combined with piperacillin sodium and tazobactam sodium (VPT) in adult patients with severe infections.Methods:Clinical data of adult patients with VPT-related AKI (AKI group) hospitalized at the Affiliated Hospital of Gansu Medical College and People′s Hospital of Hengshui from January 2022 to August 2023 due to severe infections were collected. The occurrence time, severity, and prognosis of AKI in the AKI group were descriptive statistically analyzed. According to the ratio of 1∶1, patients in the control group were randomly selected from those who did not develop AKI after using VPT in the same period. The general information, disease status, baseline laboratory tests results, and the application of VPT and combined drugs, etc. in patients of the 2 groups were collected. The influencing factors of AKI caused by VPT were analyzed by univariate and multivariate logistic regression.Results:A total of 1 547 adult patients with severe infections were treated with VPT, of which 175 (11.3%) developed AKI. Among the 175 patients, 81 (46.3%) were male and 94 (53.7%) were female, with an age of (55±22) years; the time from VPT treatment to the occurrence of AKI was (4±1) days, and the severity of AKI was staged as grade 1, 2 and 3 in 97 (55.4%), 54 (30.9%), and 24 (13.7%) patients, respectively. After drug withdrawal, the renal function gradually recovered in 169 (96.6%) of the 175 patients with AKI, and 6 (3.4%) patients needed continuous renal replacement therapy. Multivariate logistic regression analysis showed that the trough concentration of vancomycin >20 mg/L [odds ratio ( OR)=2.105, 95% confidence interval ( CI): 1.427-3.105, P=0.022], the duration of vancomycin treatment ≥11 days ( OR=1.518, 95% CI: 1.232-1.871, P=0.014), the duration of piperacillin sodium and tazobactam sodium treatment ≥14 days ( OR=1.826, 95% CI: 1.152-2.894, P=0.029) and longer duration of combined vasoactive drugs ( OR=3.315, 95% CI: 1.428-7.695, P=0.005) were independent risk factors for VPT-related AKI. Conclusions:VPT-related AKI in adult patients with severe infections mostly occurs within one week of combination therapy, and the severity was mostly stage 1 and 2. The trough concentration of vancomycin >20 mg/L, longer course of VPT treatment, and longer time of combined vasoactive drugs can increase the risk of VPT-related AKI.

Objective:To explored the clinical characteristics and risk factors of acute kidney injury (AKI) caused by vancomycin combined with piperacillin sodium and tazobactam sodium (VPT) in adult patients with severe infections.Methods:Clinical data of adult patients with VPT-related AKI (AKI group) hospitalized at the Affiliated Hospital of Gansu Medical College and People′s Hospital of Hengshui from January 2022 to August 2023 due to severe infections were collected. The occurrence time, severity, and prognosis of AKI in the AKI group were descriptive statistically analyzed. According to the ratio of 1∶1, patients in the control group were randomly selected from those who did not develop AKI after using VPT in the same period. The general information, disease status, baseline laboratory tests results, and the application of VPT and combined drugs, etc. in patients of the 2 groups were collected. The influencing factors of AKI caused by VPT were analyzed by univariate and multivariate logistic regression.Results:A total of 1 547 adult patients with severe infections were treated with VPT, of which 175 (11.3%) developed AKI. Among the 175 patients, 81 (46.3%) were male and 94 (53.7%) were female, with an age of (55±22) years; the time from VPT treatment to the occurrence of AKI was (4±1) days, and the severity of AKI was staged as grade 1, 2 and 3 in 97 (55.4%), 54 (30.9%), and 24 (13.7%) patients, respectively. After drug withdrawal, the renal function gradually recovered in 169 (96.6%) of the 175 patients with AKI, and 6 (3.4%) patients needed continuous renal replacement therapy. Multivariate logistic regression analysis showed that the trough concentration of vancomycin >20 mg/L [odds ratio ( OR)=2.105, 95% confidence interval ( CI): 1.427-3.105, P=0.022], the duration of vancomycin treatment ≥11 days ( OR=1.518, 95% CI: 1.232-1.871, P=0.014), the duration of piperacillin sodium and tazobactam sodium treatment ≥14 days ( OR=1.826, 95% CI: 1.152-2.894, P=0.029) and longer duration of combined vasoactive drugs ( OR=3.315, 95% CI: 1.428-7.695, P=0.005) were independent risk factors for VPT-related AKI. Conclusions:VPT-related AKI in adult patients with severe infections mostly occurs within one week of combination therapy, and the severity was mostly stage 1 and 2. The trough concentration of vancomycin >20 mg/L, longer course of VPT treatment, and longer time of combined vasoactive drugs can increase the risk of VPT-related AKI.

OBJECTIVETo summarize the therapeutic effect of 5 kinds of flaps for the treatment of skin and soft tissue defect in the hallex.

METHODSFrom Jan. 2008 to Jun. 2013, 24 cases with skin and soft tissue defects in the hallex were treated with 5 kinds of reversed flaps, including medial foot dorsal neurocutaneous flaps, medial foot neurocutaneous flaps, lateral tarsal flaps, anterior malleous flaps, medial cross leg and saphenous nerve flaps. The defects size ranged from 3 cm x 2 cm to 5 cm x 3 cm, with the flap size from 3. 5 cm x 2. 5 cm to 5. 5 cm x 4. 0 cm.

RESULTSPartial superficial necroisis happened at the distal end of one foot dorsal medial neurocutaneous flap. One third flap necrosis occurred in 1 foot medial neurocutaneous flap due to too tight suture at flap pedicle and resulted thrombosis. All the other 23 flaps survived completely. 15 cases were followed up for 3-36 months with normal walking function and satisfactory appearance. Among the 8 cases with nerve anastomosis, 4 cases were followed up with 2-point discrimination distance of 8-11 mm. the flaps without nerve anastomosis also had protective sense due to nerve ingrowth.

CONCLUSIONSSkin and soft tissue defects in the hallex can be treated with different appropriate flaps. The hallex length can be reserved with satisfactory function and appearance.

Foot Injuries ; surgery ; Graft Survival ; Hallux ; injuries ; surgery ; Humans ; Necrosis ; Reconstructive Surgical Procedures ; Soft Tissue Injuries ; surgery ; Surgical Flaps ; pathology ; transplantation

Objective To analyze the phenotypes of lymphocytes in cerebrospinal fluid derived from the patients with neurosyphilis. Methods Samples of cerebrospinal fluid from 12 patients with neurosyphilis and 20 patients with latent syphilis were collected and analyzed by flow cytometry for CD4 and CD25 expression. Results There was a significant increase in the number of white blood cells in the cerebrospinal fluid of patients with neurosyphilis. FACS analysis showed that most leukocytes were lymphocytes predominated with CD4 + T cells in neurosyphilis patients which were almost 4 times more than that in latent syphilis. However, there was a significant decrease in the proportion of CD4+ CD25high regulatory T cells (Tr) in neurosyphilis patients compared with that in latent syphilis patients. Conclusion A dramatic increase in CD4+ T cell frequency suggested its pathogenic role in neurosyphilis, whereas a decrease in CD25high Tr frequency indicated that CD4 + CD25high Tr cells might play an important role in immune homeostasis of central nervous system.

Objective To assess the clinical presentations and treatment of neurosyphilis with mania as the first manifestation. Methods A retrospective study was performed. Clinical data on neurosyphilis patients with mania as the first manifestation collected from July 2009 to June 2010 were analyzed. Results Twenty cases of neurosyphilis were included in this study, which were all misdiagnosed as schizophrenia, anxiety,cerebral infarction, etc. All the patients had manic symptoms at onset, such as irritability, bad temper, impulsive behavior, disturbance in thinking, and so on. Some patients also suffered from a marked decrease in memory, calculation and cognitive ability. Rapid plasma reagin (RPR) test, Treponema pallidum hemagglutination (TPHA)test and cerebrospinal fluid (CSF) venereal disease research laboratory (VDRL) test were positive in all the patients. Varying degrees of symptomatic improvement was achieved after anti-syphilis and anti-psychotic treatment. CSF was retested in 13 patients 3 months after the end of treatment, and CSF VDRL titer decreased in 10 patients, remained unchanged in 2 patients, and turned negative in 1 patient. Conclusions Neurosyphilis lacks distinctive clinical characteristics. For patients with poor response to conventional antipsychotic therapy,neurosyphilis should be considered, and serology and cerebrospinal fluid tests for syphilis are warranted.