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Pyoderma gangrenosum (PG) is a neutrophilic dermatosis associated with significant morbidity and mortality, with no consensus treatment to date. To review all clinical trials of treatments for PG to synthesise clinical evidence regarding the efficacy and safety of different treatments. After PROSPERO (CRD42023459180) registration, we systematically searched five databases (clinicaltrials.gov, CENTRAL, Embase, PubMed and Scopus) up until 18th May 2024 for PG treatments. Of 10 579 identified articles, 5853 deduplicated abstracts were screened. Twenty studies met the screening criteria after a full text review of 60 articles. We assessed the risk of bias using ROBIN-I for non-randomised and ROB-2 for randomised trials. Two reviewers independently performed article screening and quality assessments. Two reviewers independently extracted and recorded data on study characteristics, participants' demographics, disease characteristics, treatment regimens, and outcomes for the selected studies. A single-arm meta-analysis of available RCTs and non-randomised studies was conducted to analyse the outcomes of different systemic immunomodulators. The primary outcome was the complete healing of PG. Secondary outcomes included rates of recurrence, treatment failure, adverse events and time to complete healing. A total of twenty (20) interventional studies were included in the data synthesis: nine (9) prospective open-label studies, six (6) prospective cohort studies, three (3) open-label clinical trials, and two (2) randomised controlled trials evaluating multiple biological, systemic, and topical interventions. On random effects meta-analysis of systemic therapies including adalimumab, canakinumab, infliximab, chlorambucil, cyclosporine, cyclophosphamide and prednisolone, the pooled proportion of complete healing across 11 studies was 0.59 (95% confidence interval [CI]: 0.41–0.74; Χ 2 = 26.66, p < 0.01; I 2 = 66%); the pooled proportion of PG recurrence across 6 studies was 0.30 (95% CI: 0.20–0.41; Χ 2 = 1.14, p = 0.95; I 2 = 0%); the pooled proportion of serious adverse effects from 4 studies was 0.10 (95% CI: 0.05–0.19; Χ 2 = 5.01, p = 0.17; I 2 = 40%); and the pooled proportion of PG treatment failure across seven studies was 0.36 (95% CI: 0.24–0.49; Χ 2 = 12.78, p = 0.03; I 2 = 61%). The proportion of complete wound healing varies significantly across treatments and recurrence is common even in a limited follow-up period. Heterogeneity of study methods and low numbers hamper disease research. There remains a significant unmet need for better outcome measures than just complete healing as well as better treatment options to improve patient outcomes.
Trauma and orthopaedic surgery (TOS) can result in surgical site infections (SSIs), and the repercussions include prolonged and increased cost of treatment. This study investigated the incidence and risk factors of SSI following TOS. A prospective cohort study was conducted at the Tamale Teaching Hospital from September 2023 to May 2024. Data on demographics, comorbidities, preoperative, intra-operative and postoperative parameters were collected from patients, medical records and the operation report. SSI was defined following the Centers for Disease Control and Prevention criteria. The incidence of SSI during the study period was determined, and univariate and multivariate logistic regression analyses were used to identify the independent risk factors of SSI. A total of 210 patients were enrolled of which 6.7% (14) developed SSIs, including 1.0% (2) deep and 5.7% (12) superficial SSIs. The incidence of open fractures and closed fractures in this study was 3.3% (7) and 2.9% (6), respectively. According to multivariate regression analysis, blood transfusion before surgery (p = 0.034; OR = 3.53; 1.10–11.33) was identified as an independent risk factor of SSI following TOS. However, there was a significant association between the type of dressing used on the surgical site after surgery (p = 0.035; OR = 4.08; 1.10–15.08) and SSI. The study reported the overall incidence rate of SSI after TOS to be 6.7% (67 per 1000 surgical operations). Blood transfusion before surgery was an independent risk factor of SSI following TOS. Local and global measures that limit the rates of SSI after TOS should be adopted especially in managing high-risk patients such as those who require pre-operative blood transfusion.
Objective of the study was to find the association of vitamin D receptor (VDR) polymorphisms (Fokl, Taql and Apal) with vitamin D levels in diabetic foot ulcer (DFU) patients in South India. In this case–control study, plasma vitamin D levels and VDR genotype frequencies of 70 cases (DFU patients) were compared with 70 diabetic (diabetes mellitus [DM] [non-DFU]) patients and 70 apparently healthy controls (HC) from South India. Plasma vitamin D levels were measured using the ELISA technique, and genotyping of VDR polymorphisms was carried out using real-time polymerase chain reaction. Logistic regression was used to find the association between DFU versus HC and DFU versus DM traits. Association analysis was performed based on additive, dominant and recessive models with age and gender as covariates. A 45.7% of DFU patients have sufficient vitamin D levels than 48.6% and 40% of DM patients and HC, respectively. Linkage disequilibrium analysis for DFU versus HC and DFU versus DM traits shows that single nucleotide polymorphisms (SNPs) Taq1 (rs731236) and Apal (rs7975232) are in strong linkage disequilibrium in DFU patients. The alleles and genotype frequencies were similar in all three groups. Although the additive model does not show statistical significance, age and sex correlate with the three SNPs (Fokl, Taql and Apal). No association was found between VDR gene polymorphisms and vitamin D levels in DFU patients in Southern India. On the other hand, age and sex correlate with the three SNPs.
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