Correlation analysis of patients with diabetic foot ulcers treated with tibial cortex transverse transport surgery and platelet-to-lymphocyte ratio and monocyte-to-neutrophil ratio.

BACKGROUND: Diabetic foot ulcers (DFUs) represent one of the most severe late-stage complications of diabetes. Tibial cortex transverse transport (TTT) surgery stands as the prevailing method for addressing DFUs. This surgical intervention holds the promise of expediting DFU wound healing and diminishing the rate of amputations, with the mitigation of inflammatory responses playing a pivotal role. In this study, we aim to explore the correlation between inflammation and TTT surgery, with the overarching goal of facilitating swift prognostic assessments in clinical practice. OBJECTIVES: The correlation between the severity of DFUs and clinical test results remains ambiguous. A clinical prediction model was devised to explore the connection between DFU severity and the efficacy of TTT surgery, utilizing straightforward and efficient clinical indicators. MATERIAL AND METHODS: Clinical data and examination results were gathered by tracking hospitalized DFU patients who underwent TTT surgery at the First Affiliated Hospital of Guangxi Medical University (Nanning, China). Indicators associated with DFU severity and wound healing time post-surgery were identified through logistic regression and least absolute shrinkage and selection operator (LASSO) regression analyses. Subsequently, a clinical prediction model was constructed. Finally, the intersection of these 2 sets of indicators revealed factors correlated with wound severity and post-operative healing duration. RESULTS: Our study was comprised of 202 patients who were categorized into 2 groups based on Wagner's grading classifications. Utilizing Student's t-tests, LASSO regression and logistic regression analyses, we identified 3 factors indicative of DFU severity: platelet-to-lymphocyte ratio (PLR), mixed lymphocyte reaction (MLR) and hemoglobin (HGB). Univariate COX regression analysis revealed 12 factors such as: white blood cells (WBC), neutrophils (NEUT), monocytes (MO), PLR, MLR, neutrophil-to-lymphocyte ratio (NLR), erythrocyte sedimentation rate (ESR), age, lymphocytes (LY), monocyte-to-neutrophil ratio (MNR), uric acid (UA), and albumin (ALB) associated with the postoperative healing duration. Ultimately, we identified 2 factors, PLR and MNR, at the intersection of these 2 datasets. CONCLUSIONS: Platelet-to-lymphocyte ratio and MNR were identified as factors associated with both the severity of DFUs and the prognosis following TTT surgery.

Tibial Cortex Transverse Transport Facilitates Severe Diabetic Foot Wound Healing via HIF-1α-Induced Angiogenesis.

Purpose: Management of severe diabetic foot ulcers (DFUs) remains challenging. Tibial cortex transverse transport (TTT) facilitates healing and limb salvage in patients with recalcitrant DFUs. However, the underlying mechanism is largely unknown, necessitating the establishment of an animal model and mechanism exploration. Methods: Severe DFUs were induced in rats, then assigned to TTT, sham, or control groups (n=16/group). The TTT group underwent a tibial corticotomy, with 6 days each of medial and lateral transport; the sham group had a corticotomy without transport. Ulcer healing was assessed through Laser Doppler, CT angiography, histology, and immunohistochemistry. Serum HIF-1α, PDGF-BB, SDF-1, and VEGF levels were measured by ELISA. Results: The TTT group showed lower percentages of wound area, higher dermis thickness (all p < 0.001 expect for p = 0.001 for TTT vs Sham at day 6) and percentage of collagen content (all p < 0.001) than the other two groups. The TTT group had higher perfusion and vessel volume in the hindlimb (all p < 0.001). The number of CD31+ cells (all p < 0.001) and VEGFR2+ cells (at day 6, TTT vs Control, p = 0.001, TTT vs Sham, p = 0.006; at day 12, TTT vs Control, p = 0.003, TTT vs Sham, p = 0.01) were higher in the TTT group. The activity of HIF-1α, PDGF-BB, and SDF-1 was increased in the TTT group (all p < 0.001 except for SDF-1 at day 12, TTT vs Sham, p = 0.005). The TTT group had higher levels of HIF-1α, PDGF-BB, SDF-1, and VEGF in serum than the other groups (all p < 0.001). Conclusion: TTT enhanced neovascularization and perfusion at the hindlimb and accelerated healing of the severe DFUs. The underlying mechanism is related to HIF-1α-induced angiogenesis.

Tibial cortex transverse transport promotes ischemic diabetic foot ulcer healing via enhanced angiogenesis and inflammation modulation in a novel rat model.

BACKGROUND: Tibial Cortex Transverse Transport (TTT) represents an innovative surgical method for treating lower extremity diabetic foot ulcers (DFUs), yet its underlying mechanisms remain elusive. Establishing an animal model that closely mirrors clinical scenarios is both critical and novel for elucidating the mechanisms of TTT. METHODS: We established a diabetic rat model with induced hindlimb ischemia to mimic the clinical manifestation of DFUs. TTT was applied using an external fixator for regulated bone movement. Treatment efficacy was evaluated through wound healing assessments, histological analyses, and immunohistochemical techniques to elucidate biological processes. RESULTS: The TTT group demonstrated expedited wound healing, improved skin tissue regeneration, and diminished inflammation relative to controls. Marked neovascularization and upregulation of angiogenic factors were observed, with the HIF-1α/SDF-1/CXCR4 pathway and an increase in EPCs being pivotal in these processes. A transition toward anti-inflammatory M2 macrophages indicated TTT's immunomodulatory capacity. CONCLUSION: Our innovative rat model effectively demonstrates the therapeutic potential of TTT in treating DFUs. We identified TTT's roles in promoting angiogenesis and modulating the immune system. This paves the way for further in-depth research and potential clinical applications to improve DFU management strategies.

Efficacy and safety of unilateral tibial cortex transverse transport on bilateral diabetic foot ulcers: A propensity score matching study.

Background: Tibial Cortex Transverse Transport (TTT) has been demonstrated to be an effective treatment for unilateral diabetic foot ulcers (UDFUs). However, this retrospective study was designed to compare the efficacy and safety of unilateral TTT on bilateral diabetic foot ulcers (BDFUs). Methods: This retrospective study included a review of patients with TTT treated from January 2017 to August 2019, Propensity Score Matching (PSM) was performed to compare patients with BDFUs to those with UDFUs. Ulcer healing, recurrence, and major amputation rates were evaluated at 1-year follow-up. Changes in foot vessels were assessed in the BDFUs group using computed tomography angiography (CTA). Results: A total of 140 patients with DFUs (106 UDFUs and 34 BDFUs) were included in the study. UDFUs and BDFUs were matched in a 1:1 ratio (34 in each group) using PSM. No significant difference was observed at 1-year-follow-up [91.2% (31/34) vs. 76.5% (26/34), OR 0.315 (95% CI 0.08 to 1.31), P â€‹= â€‹0.10] and 6-month-follow-up [70.6% (24/34) vs. 50.0% (17/34), OR 0.85 (95% CI 0.15 to 1.13), P â€‹= â€‹0.08] in two groups. Significant differences in rates of major amputation and recurrence between the groups (P â€‹> â€‹0.05) were not observed. The BDFUs group appeared more angiogenesis of the foot by CTA after 8 weeks of operation. Conclusion: Results of this study suggest that severe BDFUs can be effectively treated by unilateral TTT. TTT is easy to operate and effective, which may be a good alternative for treating severe BDFUs. The translational potential of this article: In previous retrospective clinical studies, TTT has demonstrated promising clinical outcomes in the management of diabetic foot ulcers. In this current study, we aim to investigate the potential use of TTT in treating distant tissue defects by evaluating the limited availability and safety of TTT for the management of bilateral diabetic foot. While additional basic and clinical research is necessary to fully elucidate the underlying mechanisms, our study offers insight into the potential therapeutic use of TTT for this condition.

Knowledge Domains and Emerging Trends of Osteoblasts-Osteoclasts in Bone Disease From 2002 to 2021: A Bibliometrics Analysis and Visualization Study.

Background: Osteoblasts-Osteoclasts has been a major area in bone disease research for a long time. However, there are few systematic studies in this field using bibliometric analysis. We aimed to perform a bibliometric analysis and visualization study to determine hotspots and trends of osteoblasts-osteoclasts in bone diseases, identify collaboration and influence among authors, countries, institutions, and journals, and assess the knowledge base to develop basic and clinical research in the future. Methods: We collected articles and reviews for osteoblasts-osteoclasts in bone diseases from the Web of Science Core Collection. In addition, we utilized scientometrics software (CiteSpace5.8 and VOSviewer1.6.18) for visual analysis of countries/regions, institutions, authors, references, and keywords in the field. Results: In total, 16,832 authors from 579 institutions in 73 countries/regions have published 3,490 papers in 928 academic journals. The literature in this field is rapidly increasing, with Bone publishing the most articles, whereas Journal of Bone and Mineral Research had the most co-cited journals. These two journals mainly focused on molecular biology and the clinical medicine domain. The countries with the highest number of publications were the US and China, and the University of Arkansas for Medical Sciences was the most active institution. Regarding authors, Stavros C. Manolagas published the most articles, and Hiroshi Takayanagi had the most co-cited papers. Research in this field mainly includes molecular expression and regulatory mechanisms, differentiation, osteoprotection, inflammation, and tumors. The latest research hotspots are oxidative stress, mutation, osteocyte formation and absorption, bone metabolism, tumor therapy, and in-depth mechanisms. Conclusion: We identified the research hotspots and development process of osteoblasts-osteoclasts in bone disease using bibliometric and visual methods. Osteoblasts-osteoclasts have attracted increasing attention in bone disease. This study will provide a valuable reference for researchers concerned with osteoblasts-osteoclasts in bone diseases.

Systematic review and meta-analysis of the incidence rates of adverse events after digestive endoscopy in children.

Background: With the widespread use of digestive endoscopy in children, a variety of adverse events (AEs) have occurred after digestive endoscopy. However, there are notable differences in the incidence of adverse reactions in digestive endoscopy in children at present, which makes it difficult to assess the safety of digestive endoscopy in children. Methods: Studies related to digestive endoscopy in children were screened from January 2005 to October 2021 from PubMed, Web of Science, Spring, CNKI, and Science Direct databases. RevMan5.3 and Stata were employed to carry out meta-analysis on the incidence of adverse respiratory events, myoclonus, abdominal pain, fever, bleeding, chest pain, sore throat, vomiting, and delayed capsule discharge after digestive endoscopy in children. The article quality was evaluated by the Agency for Healthcare Research and Quality (AHRQ). The chi-square test and I2 were adopted to test literature heterogeneity, and the article publication bias was assessed by displaying an inverted funnel plot as a funnel plot. Results: In all, 15 articles were included, involving a total of 27,770 children. In all, 15 articles were included, involving a total of 27,770 children. The risk ratio (RR) value of adverse respiratory events after digestive endoscopy in children was 1.31 [95% confidence interval (CI): 1.17 to 1.47, P<0.00001]; the odds ratio (OR) value of the incidence of myoclonus was 1.21 (95% CI: 1.01 to 1.46, P=0.04); the incidence of abdominal pain was 1.18 (95% CI: 1.11 to 1.27, P<0.00001); the incidence of fever was 1.09 (95% CI: 1.06 to 1.12, P<0.00001); the incidence of bleeding was 1.24 (95% CI: 0.94 to 1.64, P=0.13); the incidence of chest pain was 1.06 (95% CI: 1.03 to 1.09, P<0.0001); incidence of sore throat was 1.11 (95% CI: 1.05 to 1.18, P=0.0004); incidence of vomiting was 1.13 (95% CI: 1.06 to 1.21, P=0.0001); and the incidence of delayed capsule expulsion was 1.18 (95% CI: 1.00 to 1.40, P=0.05). Discussion: The incidence of AEs after digestive endoscopy in children was low, which can be used in the diagnosis and therapy of digestive system diseases in children.

Electrolyte additive strategy enhancing the electrochemical performance of a soft-packed LiCoO2//graphite full cell.

During the development of high-capacity, ultra-stable battery electrode materials, battery performance, and safety issues are proved to be related to the properties of the electrolyte used. The employment of electrolyte additives is to improve the battery electrolyte properties. Representative commercial two-electrode LiCoO2//graphite pouch cells are used to study electrolyte additives represented by fluoroethylene carbonate (FEC) to improve the electrochemical stability of a commercial pouch full cell. The study reveals that a 1.5% FEC electrolyte additive has the best stability in the voltage range of 3.0-4.2 V.

[Treatment of severe diabetic foot ulcer using tibia transverse transport combined with nose ring drain].

OBJECTIVE: To investigate the effectiveness of tibial transverse transport (TTT) combined with nose ring drain (NRD) in the treatment of severe diabetic foot ulcer. METHODS: The clinical data of 60 patients with severe diabetic foot (Wagner grade 3 or 4) ulcer who were admitted between April 2017 and August 2020 and met the selection criteria were retrospectively analyzed. Among them, 30 cases were treated with TTT combined with NRD (TTT+NRD group), and 30 cases were treated with TTT (TTT group). There was no significant difference in gender, age, diabetes duration, preoperative glycated hemoglobin, comorbidities, wound area, and duration, side, and grade of diabetic foot ( P>0.05). The wound healing time, wound healing rate, amputation rate, recurrence rate, duration of antibiotic therapy, hospital stay, number of hospitalizations, and number of operations were recoreded and compared between the two groups. RESULTS: No obvious surgical complications occurred in the two groups. Patients in both groups were followed up 3-13 months, with an average of 5.7 months. The duration of antibiotic therapy and hospital stay in the TTT+NRD group were significantly shorter than those in the TTT group ( P<0.05). There was no significant difference in wound healing time, wound healing rate, number of hospitalizations, and number of operations between the two groups ( P>0.05). During follow-up, there was no recurrence of ulcer in the TTT+NRD group while 2 recurrent cases (6.7%) in the TTT group. The difference in recurrence rate was not significant ( P=0.492). One case (3.3%) in the TTT+NRD group underwent amputation due to acute lower extremity vascular embolism, and 1 case (3.3%) in the TTT group underwent amputation due to secondary necrosis. The difference in amputation rate was not significant between the two groups ( P=1.000). CONCLUSION: TTT combined with NRD is an effective method for the treatment of severe diabetic foot ulcers with deep infections or relatively closed cavities or sinuses. It can shorten the time of antibiotic use and the length of hospitalization; and the NRD has a good drainage effect without obvious comorbidities, procedure and the postoperative care are simple and easy to obtain materials.

Reducing particulates in indoor air can improve the circulation and cardiorespiratory health of old people: A randomized, double-blind crossover trial of air filtration.

Exposure to indoor air particulate pollution increases respiratory and cardiovascular morbidity and mortality, especially in the elderly. To assess a short-term, indoor air filtration's potential benefit on circulatory and cardiopulmonary health among healthy older people, a randomized, double-blind crossover trial was conducted with 24 healthy residents of an aged-care center in Chongqing, China in 2020. Each room received a high-efficiency particulate air filter air purifier and a placebo air purifier for two days. Fifteen circulatory system biomarkers of inflammation, coagulation, and oxidative stress; lung function; blood pressure (BP); heart rate (HR) and fractional exhaled nitric oxide (FeNO) were measured end of each two days. Indoor air particulate pollution was monitored throughout the study period. Linear mixed-effect models were used to associate health outcome variables with indoor particles. This intervention study demonstrated that air filtration was associated with significantly decreased concentrations of inflammatory and coagulation biomarkers, but not of biomarkers of oxidative stress and lung function. Just 48 h of air filtration can improve the cardiopulmonary health of the elderly. Air purifiers may be a public health measure that can be taken to improve circulatory and cardiopulmonary health among older people.

Tibial cortex transverse transport facilitating healing in patients with recalcitrant non-diabetic leg ulcers.

OBJECTIVE: The treatment of recalcitrant not-diabetic leg ulcers remains challenging. Distraction osteogenesis is accompanying by angiogenesis and neovascularization in the surrounding tissues. We previously applied tibial cortex transverse transport (TTT) to patients with recalcitrant diabetic foot ulcers and found neovascularization and increased perfusion in the foot and consequently enhanced healing and limb salvage and reduced recurrence. However, the effects of TTT on recalcitrant non-diabetic leg ulcer remains largely unknown. METHODS: Consecutive patients (n â€‹= â€‹85) with recalcitrant non-diabetic leg ulcers (University of Texas Grade 2-B to 3-D, ie, wound penetrating to the tendon, capsule, bone, or joint with infection and/or ischemia) were recruited and divided into TTT (n â€‹= â€‹42) and control (n â€‹= â€‹43) groups based on the treatment they received. There were 36 (85.7%) arterial ulcers, 4 (9.5%) venous ulcers and 2 (4.8%) mixed ulcers in the TTT group and 32 (74.4%) arterial ulcers, 7 (16.7%) venous ulcers and 4 (9.3%) mixed ulcers in the control group (p â€‹> â€‹0.05). The two groups were matched on demographic and clinical characteristics. Patients in the TTT group underwent tibial corticotomy followed by 4 weeks of distraction medially then laterally, while those in the control group received conventional surgeries (debridements, revascularization, reconstruction with flaps, or skin grafts or equivalents). Ulcer healing and healing time, limb salvage, recurrence, and patient death were evaluated at a 1-year follow-up. Changes in leg small vessels were assessed in the TTT group using computed tomography angiography (CTA). RESULTS: TTT group had higher healing rates at 1-year follow-up than the control group (78.6% [33/42] vs. 58.1% [25/43], OR 2.64 [95% CI 1.10 to 6.85], p â€‹= â€‹0.04). The healing time of the TTT group was shorter than the control group (4.5 vs. 6.1 months, mean difference -1.60 [95% CI -2.93 to -0.26], p â€‹= â€‹0.02). There were no significant differences in rates of major amputation, reulceration, or mortality between the groups (p â€‹> â€‹0.05). TTT group displayed more small vessels 4 weeks postoperatively at the wound area, the foot, and the calf of the ipsilateral side in CTA. All patients in the TTT group achieved good union at the osteotomy site and had no skin or soft tissue necrosis or infection around the incision area. CONCLUSION: The findings showed that TTT facilitated the healing of recalcitrant non-diabetic leg ulcers and reduced the healing time compared with conventional surgeries. They suggest that TTT is an effective procedure to treat recalcitrant non-diabetic foot ulcers compared with standard surgical therapy. The procedure of TTT is relatively simple. Randomized controlled trials are required to confirm these findings. THE TRANSLATIONAL POTENTIAL OF THIS ARTICLE: TTT can be used as an effective treatment for recalcitrant non-diabetic leg ulcers in patients. The mechanism may be associated with the neovascularization in the ulcerated foot induced by TTT and consequently increased perfusion. Together with previous findings from recalcitrant diabetic leg ulcers, the findings suggest TTT as an effective procedure to treat recalcitrant chronic leg ulcers.

Brachiocephalic trunk and left brachiocephalic vein injuries following penetrating right sternoclavicular junction trauma: a case report.

A 46-year-old male sustained severe pe- netrating injury by a sharp instrument to his right upper sternoclavicular junction. The wound tract was from suprasternal notch to mediastinum. Exploratory operation via median sternotomy under general anesthesia found a large mediastinal septum hematoncus, as well as brachiocephalic trunk and left brachiocephalic vein injuries. The perforating vascular wounds were repaired with 5-0 prolene suture. He was recovered uneventfully and discharged 9 days after operation. There was no sequel found during 7 years follow-up.

Analysis on care outcome of patients with polytrauma and coma.

OBJECTIVE: To make further improvement of outcome of patients with polytrauma and coma. METHODS: The data of 3361 patients (2378 males and 983 females, aged from 5-95 years, 38.2 years on average) with severe polytrauma and coma admitted to Chongqing Emergency Medical Center (Level I Trauma Center), Chongqing, China, from November 1978 to December 2004 were analyzed retrospectively in this study. RESULTS: The overall survival rate and mortality were 93.2% (3133/3361) and 6.8% (228/3361), respectively. The mortalities in patients with coma duration less than 1 hour and combined with neural dysfunction and in patients with coma duration larger than or equal to 1 hour and combined with or without neural dysfunction were significantly higher than that of those with coma duration less than 1 hour but without neural dysfunction [39.5% (136/344) vs 3.0% (92/3017), P less than 0.01]. There existed significant differences in GCS, ISS, and revised trauma score (RTS) between the death group and the survival group (P less than 0.01). RTS was in good correspondence with patient's pathophysiological status and outcome in patients with multiple trauma and coma for different groups of systolic blood pressure (SBP). The mortality in patients with SBP less than 90 mm Hg was significantly higher than that of those with SBP larger than or equal to 90 mm Hg [33.3% (68/204) vs 5.1% (160/3157), P less than 0.01]. The mortality in polytrauma patients combined with serious head injury (AIS larger than or equal to 3) was 8.2%, among which, 76.5% died from lung complications. The morbidity rate of lung complications and mortality rate increased in patients with head injury complicated with chest or abdomen injury (23.9%, 61.1% vs 27.3%, 50.0%). The mortality reached up to 61.9% in patients complicated with severe head, chest and abdomen injuries simultaneously. CONCLUSIONS: It plays a key role to establish a fast and effective trauma care system and prompt and definite surgical procedures and to strengthen the management of complications for improving the survival rate of patients with severe polytrauma and coma.