Effect of hyperbaric oxygen treatment on diabetic foot ulcers: A meta-analysis

The lived experience of patients going under hyperbaric oxygen therapy in Saudi Arabia: A phenomenological study

Hyperbaric oxygen therapy (HBOT) has emerged as an effective treatment or adjunct therapy for various disorders, prioritizing improving oxygen delivery to tissues. This qualitative inquiry aims to explore the psychological experiences of patients undergoing their first hyperbaric session, focusing on the emotional responses and information needs of patients. The study addresses the gap in understanding patient experiences and seeks to contribute to holistic care approaches and improved health outcomes for patients undergoing HBOT. Using a phenomenological-hermeneutical approach, this study engaged 6 participants from KAASH in Taif City who had undergone at least 1 HBOT session. Data were collected through in-person interviews using a semistructured guide, focusing on patients' initial HBOT experiences. Giorgi 4-step method was applied for data analysis, allowing for rich descriptions and thematic categorization of the participants' lived experiences. The analysis is centered around "Walking into the unknown" with emerged subthemes (feeling anxious or being calm; immediate or evolving outcomes; formal orientation and management; success stories and self-learning) organized under 2 revised categories, "Transitioning from fear to reassurance" and "Navigating the path of understanding." The study also highlighted the critical role of healthcare providers in addressing information gaps and enhancing patient preparedness. The findings revealed the importance of comprehensive patient education and effective communication by healthcare providers to alleviate initial fears and improve treatment experiences for HBOT patients. Future research should expand to other regions and include healthcare providers' perspectives to further validate these findings and enhance HBOT practices. Integrating psychological support into the treatment process may also benefit patients, promoting holistic care and improving overall health outcomes.

Quality of evidence supporting the role of hyperbaric oxygen therapy for diabetic foot ulcers

The goal of this overview of systematic reviews (SRs) and meta-analyses (MAs) was to methodically gather, evaluate and summarize the data supporting the use of hyperbaric oxygen therapy (HBOT) to treat diabetic foot ulcers (DFUs). The Cochrane Library, Embase, PubMed, Web of Science and Embase were all searched thoroughly to identify SRs/MAs that qualified. AMSTAR-2 tool, PRISMA checklists and GRADE system were applied by two reviewers independently to assess the methodological quality, reporting and evidence quality of the included SRs/MAs, respectively. Eleven SRs/MAs were enrolled in this overview. According to AMSTAR-2, a very low methodological quality assessment was given to the included SRs/MAs due to the limitations of items 2, 4 and 7. For the PRISMA, the overall quality of reporting is not satisfactory due to missing reporting on protocol, search, as well as additional analysis. The majority of outcomes had low- to moderate-quality evidence, and no high-quality evidence was found to support the role of HBOT for DFUs, according to GRADE. To conclude, the potential of HBOT in treating DFUs is supported by evidence of low to moderate quality. More rigorously designed, high-level studies are needed in the future to determine the evidence for HBOT for DFU, including the timing, frequency and duration of HBOT interventions.

Healing of diabetic foot ulcer with topical and oral administrations of herbal products: A systematic review and meta-analysis of randomized controlled trials

This systematic review aimed to qualitatively synthesize recent randomized controlled trials (RCTs) regarding the effect of topical application and oral intake of herbal products on the healing of diabetic foot ulcer (DFU). Also, we sought to pool the obtained findings in a meta-analysis using a random-effects model, if RCTs were relatively comparable and homogenous. A comprehensive search was performed on five electronic data sources from their inception through 23 January 2024. The RCTs, without restriction on the country of origin, were included if they compared the effect of administering standard treatments and/or placebo (i.e. control condition) to applying standard treatments and/or herbal products in topical or oral routes (i.e. experimental condition). Out of 1166 retrieved records, 28 RCTs were included. Studies used different poly and single herbal formulations. Based on the meta-analysis, administration of standard care plus daily dressing of the ulcer site with olive oil for 28 days significantly increased the total ulcer healing score (3 RCTs; weighted mean difference [WMD] = 89.30; p < 0.001), raised frequency of complete ulcer healing (2 RCTs; risk ratio [RR] = 12.44; p = 0.039) and declined ulcer degree (3 RCTs; WMD = -22.28; p = 0.002). Also, daily use of the bitter melon leaf extract in oral form for 28 days significantly increased the total ulcer healing score (2 RCTs; WMD = 0.40; p = 0.001). Additionally, based on qualitative synthesis, the adjuvant use of herbal agents seems an intriguing choice to manage DFU. Nonetheless, considering the undesirable methodological quality of most studies and the high heterogeneity in administered herbal formulations, more robust trials are required to build a solid conclusion regarding the use of herbal products for healing DFU.