Advances in Clinical and Experimental Medicine最新文献

{"title":"Stabilization of the hypoplastic thumb type Blauth IIIB using a non-vascularized proximal interphalangeal joint from the toe as an alternative reconstruction when pollicization is not accepted: Description of the surgical technique.","authors":"Michał Górecki, Piotr Czarnecki, Leszek Romanowski","doi":"10.17219/acem/186477","DOIUrl":"10.17219/acem/186477","url":null,"abstract":"<p><strong>Background: </strong>A Blauth IIIB hypoplastic thumb is a significant functional and cosmetic problem for the developing hand in children. The gold standard in treatment is amputation and index pollicization. Despite the good functional results, some parents do not consent to the operation, mainly for cosmetic reasons.</p><p><strong>Objectives: </strong>The aim is to present a detailed description and features of the technique used in our department for stabilization of a hypoplastic thumb type Blauth IIIB with a non-vascularized proximal interphalangeal joint from the toe. This is the first description of this surgery for this kind of congenital defect, together with the largest group of patients analyzed compared to alternative techniques described in the literature.</p><p><strong>Material and methods: </strong>Sixteen patients were included in the analysis. The mean age was 3 years (standard deviation (SD) ±2). In most cases, it was a unilateral and isolated defect. We described the surgical technique and postoperative management in detail and assessed intraoperative factors such as donor selection, operative time, technical problems, stabilization time, complication rate, and reoperations. Appropriate statistics were performed.</p><p><strong>Results: </strong>Most often, the graft was taken from the 3rd toe. The average operation time was 59 ±17.5 min. No technical problems were found during the surgery. The Kirschner wire was removed after an average of 6.5 weeks. The complication rate was 25%, which included the destabilization of Kirschner wires or graft non-union, but it decreased to 6% after reoperation. Five patients underwent tendon transfers.</p><p><strong>Conclusions: </strong>The presented technique is based on principles such as vascularized metatarsophalangeal joint transplants. It may be an option for stabilizing a hypoplastic thumb if parents do not consent to pollicization. Having microsurgical skills is unnecessary. The operation and anesthesia times are significantly shorter, resulting in less burden on the child's body. The study will continue assessing long-term postoperative functions and the comparison to pollicization.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"385-392"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140848802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-pharmacological approaches for stress-related neuropsychiatric disorders: Focus on physical activity and natural compounds.","authors":"Nasrollah Moradikor","doi":"10.17219/acem/202674","DOIUrl":"10.17219/acem/202674","url":null,"abstract":"<p><p>This editorial emphasizes on non-pharmacological approaches for stress-related neuropsychiatric disorders due to side effects of pharmacological approaches. It highlights various exercises, specific natural compounds and their mechanisms for stress reduction. A combination of both can be a good strategy for the stress management. There are some challenges for these approaches. One major limitation is the standardization of these interventions. Natural compounds often have different quality and potency depending on their source and preparation, which can impact their efficiency. Additionally, determining the optimal dosage for different compounds remains a significant challenge, as individual responses can vary considerably. Interdisciplinary collaboration between researchers, clinicians and policymakers must be established to address the challenges. By conducting large-scale, well-designed clinical trials researchers gain a deeper understanding of the mechanisms underlying these approaches and can prepare clear guidelines for their integration into mainstream healthcare, ultimately improving patient outcomes and reducing dependence on pharmacological treatments.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"309-313"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143623158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Forensic value of soft tissue detachments from the hyoid bone in death due to strangulation asphyxia.","authors":"Giovanna Del Balzo, Guido Pelletti, Dario Raniero, Alessia Farinelli, Andrea Uberti, Elisa Vermiglio, Gabriele Molteni, Riccardo Nocini, Stefano Gobbo, Francesco Taus, Albino Eccher, Claudio Luchini, Matteo Brunelli","doi":"10.17219/acem/186560","DOIUrl":"10.17219/acem/186560","url":null,"abstract":"<p><strong>Background: </strong>There are no unequivocal histopathological findings for the diagnosis of fatal asphyxia due to neck compression. From the observation of a series of asphyxiation cases, we noted, during microscopic analysis, a high frequency of \"detachment\" of soft tissues from the hyoid bone. This specifically refers to the presence of an optical space between the surface of the hyoid bone and soft tissues.</p><p><strong>Objectives: </strong>We aimed to evaluate the detachment of soft tissues from the hyoid bone as specific histological evidence of death due to strangulation asphyxia.</p><p><strong>Material and methods: </strong>Ten blocks were taken from deaths due to external mechanical compression of the neck (strangulation asphyxia, group A), 22 blocks were taken from deaths for other causes without trauma to the neck (group B), and 38 blocks were obtained from living subjects that have undergone laryngectomies (group C). The presence/absence of detachments were compared between the 3 groups (A, B and C) using Fisher's exact test.</p><p><strong>Results: </strong>The detachment of soft tissues from the hyoid bone was observed in 5 cases (50%) in group A, 6 cases (27.2%) in group B, and 17 cases (44.3%) in group C. The sensitivity and specificity of the presence of the detachment in group A were 0.5 (95% confidence interval (95% CI): 0.38-0.62) and 0.57 (95% CI: 0.45-0.69), respectively. The comparison between the 3 groups and the presence/absence of soft tissue detachment showed no statistically significant differences between the groups (p = 0.329), clarifying that soft tissue detachment is a nonspecific variable for all 3 situations.</p><p><strong>Conclusions: </strong>Detachment of soft tissues has poor value as a single element to favor the diagnosis of asphyxia due to violent compression of the neck and should be interpreted as an artifactual finding, unrelated to the neck injury or injury vitality.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"327-335"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140849961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and validation of the antibody-dependent cellular phagocytosis-based signature: A prognostic risk model of gastric cancer.","authors":"Qing Zheng, Zhenqi Gong, Baizhi Li, Huaiming Wang, Shaoxiong Lin","doi":"10.17219/acem/189914","DOIUrl":"10.17219/acem/189914","url":null,"abstract":"<p><strong>Background: </strong>Accumulating evidence has supported the effect of antibody-dependent cellular phagocytosis (ADCP) on the tumor microenvironment (TME) and cancer therapy. However, an ADCP-based signature to predict the prognosis of gastric cancer (GC) has not been established.</p><p><strong>Objectives: </strong>We aimed to develop an ADCP-based signature to improve the prognosis prediction of GC.</p><p><strong>Material and methods: </strong>Antibody-dependent cellular phagocytosis genes that exhibited a differential expression were characterized, followed by the construction and validation of the ADCP-based signature. The potential association between the ADCP-based signature and TME was explored, and the features of the signature genes were investigated. Finally, a predictive nomogram was established based on the ADCP-based signature.</p><p><strong>Results: </strong>Four ADCP-related genes, MKNK2, VCAN, LRAT, and GNGB, were identified to construct the ADCP-based signature, and a high ADCP score predicted an unfavorable prognosis in GC patients (p < 0.05). The ADCP-based signature was significantly associated with immune cells, immune checkpoints and immune signaling pathways (p < 0.05). Gastric cancer patients with high ADCP scores benefited less from immunotherapy compared to those with low ADCP scores. A nomogram including age, stage and risk score of the ADCP-based signature was constructed to predict the 1-, 3- and 5-year survival probabilities, with an area under the curve (AUC) of 0.669, 0.675 and 0.685, respectively.</p><p><strong>Conclusions: </strong>The ADCP-based signature may serve as a new option for prognosis prediction and the personalized treatment of GC patients.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"433-446"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of topical local anesthetic, topical cooling spray, and audiovisual distraction on relief of needle-related pain during blood collection: A randomized controlled trial.","authors":"Siwatus Puangrab, Weeratian Tawanwongsri, Auemphon Mordmuang, Wiphada Khocharoen, Pimchanok Krainukun","doi":"10.17219/acem/188106","DOIUrl":"10.17219/acem/188106","url":null,"abstract":"<p><strong>Background: </strong>Venipuncture is one of the most common invasive procedures in healthcare, often resulting in the experience of pain. While audiovisual distraction, topical anesthesia and cold spray application have been reported as methods to reduce pain, there is a lack of studies that focus on comparing their efficacy and safety.</p><p><strong>Objectives: </strong>We aimed to compare the efficacy and safety of pain reduction during venipuncture using audiovisual distraction, topical anesthesia and cold spray application.</p><p><strong>Material and methods: </strong>A randomized controlled study was conducted at Walailak University (Nakhon Si Thammarat, Thailand) from April 2023 to July 2023. Eligible adult participants voluntarily enrolled in the study and were randomly assigned to 1 of 4 groups: group 1 (control), group 2 (topical anesthetic), group 3 (cooling spray), and group 4 (audiovisual distraction). Pain scores and satisfaction levels were assessed following the venipuncture procedure on the upper extremities.</p><p><strong>Results: </strong>Forty-seven participants were included in the final analysis. The participants had a mean age of 42.3 years (standard deviation (±SD): 13.1), with the majority being female (66.0%). The participants in the intervention groups reported lower pain scores than those in group 1. The mean differences were 2.67 points in group 2 (95% confidence interval (95% CI): 1.49-3.84; p < 0.001), 1.56 points in group 3 (95% CI: 0.15-2.98; p = 0.077), and 1.67 points in group 4 (95% CI: 0.37-2.96; p = 0.042). However, the pain reduction did not reach statistical significance when comparing these 3 interventions. All groups reported a median satisfaction level of 3, with no significant difference among them (H(3) = 6.050, p = 0.109).</p><p><strong>Conclusions: </strong>Pain reduction interventions, including topical anesthetic, cooling spray and audiovisual distraction, are effective methods for alleviating pain during venipuncture. Participants who received a topical anesthetic reported the lowest pain scores and highest levels of satisfaction.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"343-350"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142103251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validation of the Polish version of the Hand Function Scoring system.","authors":"Maciej Belka, Mateusz Koziej, Jan Banach, Marta Dagmara Banach, Marek Trybus","doi":"10.17219/acem/185977","DOIUrl":"10.17219/acem/185977","url":null,"abstract":"<p><strong>Background: </strong>The Hand Function Scoring (HFS) system was created to assess the results of rehabilitation treatment after hand injuries. A perceived hand function improvement in patients who underwent carpal tunnel syndrome surgery prompted us to use the Watts HFS questionnaire in our study.</p><p><strong>Objectives: </strong>The study aimed to: 1) translate and validate the new questionnaire into Polish; 2) analyze the usefulness of the scale in the preand post-operative assessment of patients with carpal tunnel syndrome; and 3) compare the results with other questionnaires recognized as the gold standard in carpal tunnel treatment evaluation.</p><p><strong>Material and methods: </strong>Patients with electromyographically confirmed carpal tunnel syndrome (n = 317) were enrolled in the study. Participants completed the HFS, Boston Carpal Tunnel Questionnaire (BCTQ), Michigan Hand Outcomes Questionnaire (MHQ), and the Quality-of-Life Scale (QoLS) on their first visit to our clinic. Two weeks later, 84 patients completed the same questionnaires again, and 6-12 months after the operation, we received 90 additional responses.</p><p><strong>Results: </strong>The analysis showed that the HFS questionnaire met the validation criteria and had a strong correlation with the BCTQ questionnaire for the Symptoms Severity Scale (SSS) (Rho = 0.70, p < 0.001) and the Functional Status Scale (FSS) (Rho = 0.89, p < 0.001).</p><p><strong>Conclusions: </strong>The HFS questionnaire was successfully employed in the subjective assessment of carpal tunnel symptom syndrome severity and the analysis of treatment results, and would complement the clinical assessment of patients during treatment. The questionnaire could also be used in future scientific research.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"379-384"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140850036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic accuracy of digital breast tomosynthesis and digital mammography in women with dense or non-dense breast tissue: A systematic review and meta-analysis.","authors":"Hao Lin, Yimeng Zhang, Lixia Wu, Ceng Li","doi":"10.17219/acem/185522","DOIUrl":"10.17219/acem/185522","url":null,"abstract":"<p><strong>Background: </strong>Despite its excellent screening effectiveness and sensitivity for breast cancer (BC), digital breast tomosynthesis (DBT) is controversial due to its high radiation exposure and long reading time. This study examines the diagnostic accuracy of DBT and digital mammography (DM) for BC screening and diagnosis in women with dense or non-dense breast tissue.</p><p><strong>Material and methods: </strong>PRISMA-compliant searches were performed on Medline, Embase, PubMed, Web of Science, and the Cochrane databases for articles comparing DBT and DM for BC screening until March 2023. Meta-analysis was performed using RevMan sofware, and the Cochrane Risk of Bias Assessment Tool was employed to assess study quality.</p><p><strong>Results: </strong>This meta-analysis included 11 trials with a total of 2,124,018 individuals. Screening with DBT resulted in a greater cancer detection rate, as demonstrated by a risk ratio (RR) of 1.27 (95% confidence interval (95% CI): 1.14-1.41). Digital breast tomosynthesis also had a reduced recall rate, with a RR of 0.88 (95% CI: 0.78-0.99), higher sensitivity and specificity values (pooled sensitivity of 0.91 (95% CI: 0.59-0.99)) and pooled specificity of 0.90 (95% CI: 0.42-1.0)) than DM (pooled sensitivity of 0.86 (95% CI: 0.52-1.0) and pooled specificity of 0.81 (95% CI: 0.12-1.0)). All acquired data exhibited reliability, lack of bias and statistical significance (p < 0.05).</p><p><strong>Conclusion: </strong>Digital breast tomosynthesis is a more effective screening and diagnostic assessment tool for women with dense or non-dense breasts than DM in terms of incremental cancer detection, sensitivity and recall rate.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"315-326"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141858675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of T cell maturation profiles in the 1st and 5th wave of COVID-19 in the Polish population.","authors":"Elżbieta Rutkowska, Iwona Kwiecień, Agata Raniszewska, Krzysztof Kłos, Iwona Melnicka, Piotr Rzepecki, Andrzej Chciałowski","doi":"10.17219/acem/186813","DOIUrl":"10.17219/acem/186813","url":null,"abstract":"<p><strong>Background: </strong>The coronavirus pandemic has become the most critical global health threat of this century and the greatest challenge to the human population. The search for simple and quick diagnostic methods enabling the identification of patients infected with the SARS-CoV-2 virus may be a valuable method to track infection.</p><p><strong>Objectives: </strong>The aim of the study was the clinical and immunological characterization of patients by assessing the degrees of maturity of T lymphocytes from the 1st and 5th waves of coronavirus disease 2019 (COVID-19) in comparison to a healthy control group (HC).</p><p><strong>Material and methods: </strong>We determined leukocyte and T lymphocyte subpopulations (recent thymic emigrant (RTE), naïve, effector, central memory and effector memory) in patients from the 1st COVID-19 wave (n = 23), the 5th COVID-19 wave (n = 38) and HC (n=20) using a panel of monoclonal antibodies using multiparameter flow cytometry.</p><p><strong>Results: </strong>We observed a lower median proportion of lymphocytes and NK cells, and elevated percentage and number of neutrophils in patients from the 5th wave compared to the 1st. We found a reduced percentage of CD4+ effector memory cells in the 1st wave group compared to the 5th wave (14.1 vs 23.2, p < 0.05), and a higher percentage of RTE and naïve CD8+ cells in the 1st wave compared to the 5th wave (p < 0.05). The effector memory CD8+ cells were highest in the 5th wave compared to both 1st wave and HC patients (respectively, 35.1 vs 18.1 vs 19.3%, p < 0.05). The 5th wave group showed significantly more differences compared to HC.</p><p><strong>Conclusions: </strong>Our results showed a clear increase of effector cells with a simultaneous decrease in virgin T cells in the 5th COVID-19 infection. Monitoring lymphocyte subsets during infection allows assessment of the patient's immune status and of readiness of lymphocytes to respond to the immune response, and may be necessary to improve clinical outcomes.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"393-405"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141183338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Serum HMGB1 as a predictor for postoperative delirium in elderly patients undergoing total hip arthroplasty surgery.","authors":"Yan Zou, Yuan Wu, An Wei, Hao Nie, Shan Hui, Cuizhong Liu, Tingzhi Deng","doi":"10.17219/acem/189227","DOIUrl":"10.17219/acem/189227","url":null,"abstract":"<p><strong>Background: </strong>Postoperative delirium (POD) is an acute mental disorder that occurs after surgery requiring general anesthesia. In animal studies, high-mobility group box 1 (HMGB1) plays a key role in mediating postoperative neuroinflammation and may have a direct impact on POD.</p><p><strong>Objectives: </strong>The objective of this prospective observational study was to investigate the serum levels of HMGB1 in elderly POD patients undergoing total hip arthroplasty.</p><p><strong>Material and methods: </strong>This prospective observational study included 287 elderly patients who underwent total hip arthroplasty in our hospital from October 2019 to September 2022. Patients were assessed for the presence of POD using the Confusion Assessment Method (CAM) within 72 h of surgery. Serum HMGB1, interleukin (IL)-6, IL-1β, tumor necrosis factor alpha (TNF-α), and C-reactive protein (CRP) levels were measured using enzyme-linked immunosorbent assay (ELISA) before surgery, as well as at 24 h, 48 h and 72 h after surgery. Demographic and clinical data of all elderly patients were collected.</p><p><strong>Results: </strong>The anesthesia time and surgical time in the POD group were significantly higher than those in the non-POD group. The serum levels of HMGB1, IL-6 and IL-1β in the POD group were significantly elevated compared to those in the non-POD group at all time points after surgery (p < 0.05). In addition, the serum levels of HMGB1 were positively correlated with TNF-α, IL-6 and IL-1β levels. HMGB1, IL-6 and IL-1β could be potential predictive biomarkers for the occurrence of POD in elderly patients undergoing total hip arthroplasty. Finally, we found that anesthesia time, surgical time, HMGB1, TNF-α, IL-6, and IL-1β were risk factors for POD in elderly patients undergoing total hip arthroplasty.</p><p><strong>Conclusions: </strong>Serum HMGB1 levels were markedly elevated in elderly POD patients undergoing total hip arthroplasty. In addition, HMGB1 could serve as a potential predictive biomarker for POD in elderly patients undergoing total hip arthroplasty.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"361-368"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142103253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of the efficacy of two preoxygenation techniques using oxygen reserve index.","authors":"Yesim Cokay Abut, Ece Kisa","doi":"10.17219/acem/188259","DOIUrl":"10.17219/acem/188259","url":null,"abstract":"<p><strong>Background: </strong>Preoxygenation is very important to protect the patient from hypoxia before intubation. However, pulse oximetry has some limitations in detecting hypoxia.</p><p><strong>Objectives: </strong>We aimed to compare the effectiveness of 2 preoxygenation techniques based on oxygen reserve index (ORI) levels.</p><p><strong>Material and methods: </strong>Twenty healthy male volunteers were included in the study. They inhaled 100% FiO2 oxygen administered at 5 L/min as the 1st technique (M1) with a ventilation mask as much as their tidal volumes for 3 min. The 2nd technique (M2) applied 100% FiO2 oxygen at 10 L/min flow using the same mask and 8 deep inspiratory volumes, which was aimed to be completed within 1 min. Maximum ORI levels, duration to reach that level, and time needed to reach the target ORI level (0.35) and return back to the \"0\" were measured.</p><p><strong>Results: </strong>In the M1 group, ORI levels were significantly higher during and after 60 s, according to post hoc tests. In the M2 groups, ORI levels were significantly higher during and after the 4th inspiration, according to post hoc tests. Oxygen reserve index values at the 60th 2nd (M1) and 8th inspiration (M2) were compared as the 8th inspiration corresponded to the 60th second. The maximum ORI values were significantly lower in the M1 group compared to the M2 group (p < 0.001 and p = 0.006, respectively). Seven volunteers (36.8%) in the M1 group and 2 volunteers (10.5%) in the M2 group could not reach the target ORI (McNemar's test, test statistic 3.2, degrees of freedom (df) = 1, p = 0.063). The time to reach the target ORI value and to reach maximum ORI values was significantly longer in the M1 group than in the M2 group (p = 0.008 and p < 0.001, respectively).</p><p><strong>Conclusions: </strong>We observed that the 8-deep breath technique is more effective in preoxygenation compared to the 3-min tidal volume technique.</p>","PeriodicalId":7306,"journal":{"name":"Advances in Clinical and Experimental Medicine","volume":" ","pages":"337-342"},"PeriodicalIF":2.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142152970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}