Search Results (18,359)

Background/Objectives: Under general anesthesia, maintaining patients’ blood pressure (BP) is important to prevent organ ischemia. When bleeding occurs, it is sometimes difficult to increase BP with boluses of fluids or transfusions, and vasoconstrictors must be administered. This study investigated circulatory dynamic changes in patients who bled during surgery and were administered phenylephrine, particularly left ventricular end-diastolic volume (EDV), effective arterial elastance (Ea), and left ventricular end-systolic elastance (Ees), calculating each value from the left ventricular–arterial coupling (Ees/Ea). Methods: We calculated Ees/Ea using electrocardiograms, arterial pressure waveforms, and phonocardiograms using an esophageal stethoscope. We investigated the changes in patients’ EDV, Ea, and Ees during two periods: phenylephrine administration and after BP elevation. Results: The seven participants comprised three men and four women. Between the two periods, linear mixed-model analysis revealed that mean arterial pressure (MAP), Ea, and Ees significantly increased over time (MAP; β = 8.7, p < 0.01, Ea; β = 0.22, p < 0.05, Ees; β = 0.73, p < 0.05), while no significant changes were observed in other parameters such as heart rate and EDV. Conventional parameters demonstrated that stroke volume variation significantly decreased (β = −2.0, p = 0.01), systemic vascular resistance index significantly increased (β = 200, p < 0.01), while no significant change was observed in cardiac index (β = −0.03, p = 0.7). In patients administered phenylephrine due to BP decrease from bleeding, significant changes in afterload and cardiac contractility occurred without changes in preload. Conclusions: Our noninvasive method for calculating EDV, Ea, and Ees can be valuable for monitoring hemodynamics under anesthesia. Full article

Prostate cancer (PCa) is the most common malignancy in men worldwide. Multiparametric MRI (mpMRI) improves the detection of clinically significant PCa (csPCa); however, it remains limited by false-positive findings and inter-observer variability. Time-dependent diffusion (TDD) MRI provides microstructural information that may enhance csPCa characterization beyond standard mpMRI. This prospective observational diagnostic accuracy study protocol describes the evaluation of PROS-TD-AI, an in-house developed AI workflow integrating TDD-derived metrics for zone-aware csPCa risk prediction. PROS-TD-AI will be compared with PI-RADS v2.1 in routine clinical imaging using MRI-targeted prostate biopsy as the reference standard. Full article

Background/Objectives: Accurate assessment of lymph nodes is of paramount importance for correct cN staging in head and neck cancer; however, it is very time-consuming for radiologists, and lymph node metastases of head and neck cancers may show distinct characteristics, such as central necrosis or very large size. Here, we evaluate the performance of a previously developed generic cervical lymph node segmentation model in a cohort of patients with head and neck cancer. Methods: In our retrospective single-center, multi-vendor study, we included 125 patients with head and neck cancer with at least one untreated lymph node metastasis. On the respective cervical CT scan, an experienced radiologist segmented lymph nodes semi-automatically. All 3D segmentations were confirmed by a second reader. These manual segmentations were compared to segmentations generated by an AI model previously trained on a different dataset of varying cancers. Results: In cervical CT scans from 125 patients (61.9 years ± 10.6, 100 men), 3656 lymph nodes were segmented as ground-truth, including 544 clinical metastases. The AI achieved an average recall of 0.70 with 6.5 false positives per CT scan. The average global Dice accounts for 0.73 per scan, with an average Hausdorff distance of 0.88 mm. When analyzing the individual nodes, segmentation accuracy was similar for non-metastatic and metastatic lymph nodes, with a sensitivity of 0.89 and 0.85. Localization performance was lower for metastatic than for non-metastatic lymph nodes, with a recall of 0.65 and 0.74, respectively. Model performance was worse for enlarged nodes (short-axis diameter ≥ 15 mm), with a recall of 0.36 and a sensitivity of 0.67. Conclusions: The AI model for generic cervical lymph node segmentation shows good performance for smaller nodes (SAD ≤ 15 mm) with respect to localization and segmentation accuracy. However, for clearly enlarged and necrotic nodes, a retraining of the generic AI algorithm seems to be required for accurate cN staging. Full article

Objectives: The purpose of the current research is to examine and analyze the attitudes of healthcare service users towards the integration of remote medical services into ophthalmology in Bulgaria, including teleglaucoma. Methods: A cross-sectional survey study was conducted among 902 healthcare users during the period from May 2023 until December 2024. Descriptive statistics, parametric, and non-parametric tests for hypothesis testing were used. Results: The present study outlined predominantly positive attitudes towards the use of telemedicine services in ophthalmology, with 69.6% of respondents reporting a positive overall opinion in the final assessment. The greatest support was observed during remote consultations with a familiar doctor (77.4%) and during continuous follow-up of eye conditions (55.2%). Willingness to use such services was lower in emergencies or when contacting an unfamiliar specialist. A significant correlation was established between socio-demographic characteristics and attitudes—respondents with greater education levels (p = 0.006), men, and younger participants were more positive towards telemedicine (p < 0.05). The high level of awareness about glaucoma, particularly among those with university-level education, served as a positive prerequisite for the implementation of teleophthalmology services related to its monitoring. Mobile applications and digital solutions were evaluated as beneficial means of facilitating communication and increasing adherence to treatment. Regarding the use of artificial intelligence, certain skepticism and insufficient awareness levels were observed, which required additional efforts to increase trust and digital literacy among users. Conclusions: The implementation of telemedicine services into ophthalmology has potential but outlines the necessity of considering the individual attitudes of applying coherent quality and safety standards and of directed awareness campaigns, especially towards the groups of lower technological and healthcare literacy. Full article

Background/Objectives: Unhealthy lifestyles lead to chronic low-grade inflammation, increasing the risk of colorectal cancer. Few studies in East Asia have examined the association between the dietary inflammation potential and colorectal cancer incidence. Therefore, we aimed to investigate this association further in the Japanese population. Methods: This study included 38,807 men aged 45–74 years who participated in the Japan Public Health Center-based prospective study (JPHC Study). The energy-adjusted dietary inflammatory index (E-DII) was derived from a food frequency questionnaire. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox proportional hazards regression models. Differences in risk due to a combination of E-DII and lifestyle were examined using interaction term. Results: During 14 years of follow-up, 1415 colorectal cancer cases occurred. A tendency to increased colorectal cancer risk was observed with consumption of pro-inflammatory diets among Japanese men (adjusted HR [95% CI] for the highest quintile: 1.20 [0.99–1.46], p trend = 0.08), with a significantly increased risk of colon cancer (HR: 1.28 [1.01–1.63], p trend = 0.03). A possible interaction was observed with alcohol consumption (p = 0.07), which was statistically significant for proximal colon cancer (HR: 1.14 [1.05–1.25] in drinkers; p interaction = 0.01). No significant interactions with other lifestyle factors were found. Conclusions: Consumption of pro-inflammatory diets increases colorectal cancer risk among Japanese men; alcohol consumption further increases this risk for drinkers. These findings suggest that colorectal cancer may be prevented through dietary modification. Full article

Bioelectrical impedance analysis (BIA) is a widely used and an easy-to-apply method for determining body composition. However, its accuracy depends on population-specific equations. The aim of the present study is to identify the most appropriate fat-free mass (FFM) prediction equation for an Eastern European population using air-displacement plethysmography (ADP) as the reference method. The study group included 101 Caucasian subjects (56 women and 45 men) with an average body mass index (BMI) of 25.37 ± 5.45 kg/m². One set of FFM_BIA values was automatically calculated with the analyzer (Maltron BioScan 920-2), and four others were computed using the published equations of Kyle, Kanellakis, Heitman, and Deurenberg. The results were compared to FFM_ADP values measured using a BOD POD Gold Standard Body Composition Tracking System by Bland–Altman analysis. The smallest bias was obtained with the equation by Deurenberg, which underestimated FFM by only −0.22 ± 4.52 kg. The largest bias was obtained with the equation by Kyle (5.92 ± 4.73 kg), followed by the formula of Kanellakis (3.04 ± 4.65 kg). The equations by Heitman and the Maltron inbuilt formula overestimated FFM by 2.15 ± 4.27 kg and, respectively, 1.95 ± 4.3 kg. Although Maltron’s automatically generated values were very strongly correlated with ADP results (CCC = 0.93, SEE = 4.7), the formula by Deurenberg provided the most reliable estimates in the studied population. Full article

Background/Objectives: Dopamine agonists (DAs) are the first-line therapy for prolactinomas; however, a subset of patients exhibits resistance or incomplete response. Methods: This retrospective study included 85 of 125 eligible consecutive patients with prolactinoma who were treated with DA, followed for a median of 52.0 (31.5–86.8) months. Clinical, biochemical, and radiological parameters were analyzed at baseline and at 6 and 12 months. Resistance was defined as failure to normalize serum prolactin concentration (PRL) or achieve ≥ 30% reduction in tumor maximal diameter after standard DA therapy. Logistic regression analyses were performed to identify predictors of DA resistance and treatment response. Results: The cohort comprised 54 males (63.5%) and 31 females (36.1%), with a mean age of 41.5 ± 17.2 years. In total, 22.4% had giant prolactinomas. After 6 months of treatment, 24.7% achieved PRL normalization, and 29.4% demonstrated ≥ 50% reduction in tumor volume. At 12 months, PRL normalized in 40% of patients, and a ≥50% volume reduction was observed in 41.2%. DA-resistant patients, compared to DA-non-resistant, were predominantly men (80.0% vs. 56.7%, p = 0.042), with a higher proportion of giant adenomas (44.0% vs. 13.3%, p = 0.002) and significantly higher baseline PRL (2000.000 ng/mL vs. 478.985 ng/mL, p = 0.012). Early reduction in maximal tumor diameter at 6 months predicted a favorable therapeutic response at 12 months (aOR = 1.156; 95% CI = 1.001–1.335, p = 0.049). Conclusions: Male sex, higher baseline PRL, and larger tumor size can be predictors of DA resistance. On the other hand, early radiological tumor shrinkage may predict favorable treatment outcomes. However, new markers of DA resistance, particularly molecular ones, should be identified. Full article

Open partial horizontal laryngectomy (OPHL) is a key conservative option for laryngeal cancer, with established oncological outcomes but limited data on functional results and patient perspectives. Voice preservation is mainly associated with type I OPHL, whereas types II–III often result in significant but broadly comparable impairments, making vocal decline the main limitation of OPHL. Patient-reported outcomes (PROs) help clarify the balance between treatment efficacy and side effects. This single-institution study analyzed 70 consecutive OPHL patients (12 women, 17.1%; 58 men, 82.9%), mean age 65.9 years (SD 8.96), with a median follow-up of 52.5 months (range 2–218). PROs were assessed using the Priority Scale, the V-RQOL, the MDADI, the Decisional Conflict Scale, the Decisional Regret Scale, and the Brief Pain Inventory. The Priority Scale showed that curing cancer (98.6%) and prolonging life (82.9%) were top concerns, while only 34.3% prioritized natural voice preservation. V-RQOL averaged 77.4/100, indicating limited impact of voice on quality of life; MDADI was 78.5/100, reflecting minimal swallowing difficulties. Decisional Conflict averaged 34.3/100, with 30% reporting no difficulty; Decisional Regret was low (13.0/100), with only 1.4% expressing moderate regret. Most patients (78.6%) reported no pain. Overall, OPHL provided satisfactory functional and decisional outcomes, with high patient satisfaction despite the complexity of treatment. Full article

Background and Objectives: Peyronie’s disease (PD) is a chronic fibrotic disorder of the tunica albuginea causing penile deformity and sexual dysfunction. Platelet-rich plasma (PRP) has been proposed as a regenerative therapy with potential disease-modifying properties, but evidence of its use in chronic PD is scarce. This study evaluated the efficacy and safety of intralesional PRP injections in men with stable PD. Materials and Methods: A single-center retrospective cohort study was conducted including men with chronic PD treated with three weekly intralesional PRP injections (April 2022–April 2025). Inclusion required curvature stability for ≥6 months and absence of prior PD therapy. The primary outcome was a change in penile curvature at 4 weeks post-treatment. Secondary outcomes included plaque thickness (ultrasound), erectile function (IIEF-5), and safety (Clavien–Dindo grading). Results: Thirty-six men (mean age 61.2 ± 10.4 years) completed the treatment. Mean penile curvature decreased from 30.5 ± 7.3° to 24.2 ± 8.3° (Δ = −6.3°, 95% CI −7.7 to −5.3; p < 0.001); 25% achieved a ≥10° reduction. Mean plaque thickness declined from 3.25 ± 0.69 mm to 2.91 ± 0.76 mm (Δ = −0.34 mm; p < 0.001). IIEF-5 increased modestly (+1.1; p = 0.142). Only mild, transient adverse events occurred (pain 5.6%, hematoma 2.8%). Conclusions: Intralesional PRP was safe and yielded statistically significant but modest reductions in penile curvature and plaque thickness in chronic PD. Clinically meaningful improvement occurred in a minority of patients. These findings support keeping PRP investigational pending well-designed randomized controlled trials with standardized protocols and longer follow-up. Full article

Background/Objectives: The transperineal (TP) approach has progressively replaced the transrectal (TR) approach for prostate biopsy because of its improved safety profile. However, its impact on the detection of clinically significant prostate cancer (csPCa), particularly within modern lesion-focused biopsy strategies that combine targeted and perilesional sampling, remains uncertain. We aimed to evaluate the real-world diagnostic impact of transitioning from a TR systematic-based biopsy strategy to a TP lesion-focused approach. Methods: We conducted a retrospective single-centre study including consecutive men who underwent image-guided prostate biopsy between 2018 and 2025. Only patients with a single MRI-visible lesion (PI-RADS ≥ 3) were included. Two biopsy strategies were compared: TR systematic biopsy (TR–SBx), combining targeted and systematic cores, and TP lesion-focused biopsy (TP–LFx), combining targeted and perilesional cores. The primary outcome was the detection of csPCa (Gleason Grade Group ≥ 2). Secondary outcomes included detection of Gleason Grade Group 1 cancer and negative biopsies. Inverse probability of treatment weighting (IPTW) based on a propensity score was applied to adjust for baseline differences. Doubly robust weighted logistic regression models were used, with predefined subgroup and sensitivity analyses. Results: Among 1032 included patients, 931 underwent TR–SBx and 101 TP–LFx. After restriction to the region of common support, 528 patients were retained for IPTW analyses. In the IPTW-adjusted analysis, TP–LFx was associated with higher csPCa detection compared with TR–SBx (adjusted odds ratio [OR] 2.52, 95% confidence interval [CI] 1.40–4.52; p = 0.002) and with lower detection of Gleason Grade Group 1 cancer (OR 0.50, 95% CI 0.27–0.92; p = 0.03). Subgroup analyses suggested a stronger association in patients with prior negative biopsy and in anterior or apical lesions. Conclusions: In routine clinical practice, transitioning from a transrectal systematic-based biopsy strategy to a transperineal lesion-focused approach was associated with improved detection of csPCa and reduced overdiagnosis. These findings support the consideration of transperineal, lesion-focused MRI-guided biopsy strategies in contemporary prostate cancer diagnostics. Full article

Background: Pre-exposure prophylaxis (PrEP) offers over 99% protection against HIV when used consistently, but stigma continues to undermine persistence in care. While much research has described the external manifestations of PrEP-related stigma, less is known about how individuals cope with these stigmas and how such coping processes influence persistence. Guided by Social Cognitive Theory, this study examined the psychosocial strategies men who have sex with men (MSM) in Tanzania use to cope with PrEP-related stigma and sustain persistence in care. Methods: Thirty-two in-depth interviews were conducted with purposefully selected MSM aged 18–38 years at Ngamiani Health Centre in Tanga region. The sampling included both persistent and non-persistent PrEP users with variation in age and sexual position preferences. Participants were sampled for variation in persistence status (persistent and non-persistent), age, and sexual position preference to capture heterogeneity in stigma experiences and coping processes. Interviews were conducted in Kiswahili, audio-recorded, transcribed, translated, and analyzed using reflexive thematic analysis. Results: Participants described PrEP-related stigma as socially constructed through narratives that equated PrEP with HIV treatment, labeled it a “gay pill,” associated it with promiscuity, or linked it to bodily harm or increased HIV risk. These stigmas impact persistence in care through discouraging clinic visits and daily pill taking. However, some participants remained persistent in care despite stigma by using protective mental strategies such as personal agency, mental time travel, and affirmation from supportive social connections, which buffered emotional impacts and sustained persistence. Conclusions: Persistence in PrEP care is shaped not only by stigma in the social environment but also by how individuals interpret and respond to it. Interventions should therefore combine structural stigma-reduction efforts with mental health-informed strategies that strengthen agency and supportive social relationships to sustain PrEP engagement among MSM. Full article

Background: Prostate cancer in the Middle East and North Africa (MENA) region is shaped by a complex interplay of behavioral and environmental risk factors, yet comprehensive estimates of preventable cases remain scarce. To address this gap, we estimated population-attributable fractions (PAFs) for a range of modifiable exposures among men aged 50 years and older and assessed potential reductions in incidence under feasible intervention scenarios. Methods: Regional prevalence data were combined with relative risks from meta-analyses to compute closed-form PAFs for tobacco smoking, obesity, physical inactivity, high dairy and calcium intake, heavy alcohol use, drinking water nitrates, trihalomethanes, arsenic, lead, selenium status, ambient PM_2.5 and NO₂, and occupational diesel exhaust, covering an estimated 47 million men. Estimates were validated using a synthetic cohort simulation of 100,000 individuals, with uncertainty quantified through Monte Carlo sampling. Results: Results showed that drinking water nitrate exposure accounted for the largest single fraction (17.4%), followed by tobacco smoking (9.5%), physical inactivity (6.7%), and trihalomethane exposure (5.0%), while other exposures contributed smaller but meaningful shares. Joint elimination of all exposures projected a 45.5% reduction in incidence, and simultaneous feasible reductions in four targeted exposures yielded a combined potential impact fraction of 12.1%. Conclusions: These findings suggest that integrated water quality management, tobacco control, lifestyle interventions, and targeted environmental surveillance should be prioritized to reduce prostate cancer burden in the MENA region. However, estimates of drinking-water nitrate exposure rely on limited evidence from a single case–control study with a relatively small sample size, and should therefore be considered exploratory and primarily hypothesis-generating. Full article

Background: Discogenic low back pain (LBP) is a significant therapeutic and social problem. Discopathy is associated with neurological symptoms that severely disrupt the patient’s functional status. Regardless of the choice of neurosurgical procedure for discopathy, its effectiveness highly varies. Aims: This study aimed to assess the effectiveness of neurosurgical treatment and neurorehabilitation procedures based on a comprehensive analysis of a number of neurological symptoms and the functional status of patients with chronic discogenic LBP. Material and Methods: This study involved 110 patients (56 women and 54 men) who underwent first-ever lumbar spine surgery. Before the surgery and 3 months after the hospital discharge, all patients were subjected to neurological examination and comprehensive assessment of neurological symptoms. Results: After the procedure, improvement was shown in sensory disturbance (p < 0.0001), pain (p < 0.0001), and sexual dysfunction (p < 0.0001). The results of lower limb paresis, monoplegia, and sphincter complications remained non-significant. A reduction in scoliosis (p = 0.0040) and lumbar pain (p < 0.0001) was observed. There was a reduction in pain in the lower leg (p = 0.0136) and foot (p = 0.0122) during movements. Improvement in passive and active mobility as well as pain reduction in the lumbar spine area were demonstrated (p < 0.0001). There was significant improvement in the knee and ankle reflexes (p < 0.0001). There were no significant changes in the superficial sensation. In the functional assessment, an improvement in the toe-to-floor test of 13.3 cm was confirmed (p < 0.0001), while there was no difference in the Lasègue’s test. Conclusions: The general and neurological condition of patients with LBP significantly improved after the spine surgery. The improvement included mainly a reduction in pain and sensory disturbances, return of deep reflexes, and increased mobility of the lower limbs and spine. Full article

Background: The aim of the study was to assess trends in mortality and years of life lost due to acute myocardial infarction (AMI) in Poland between 2000 and 2023. Methods: We analysed aggregated, fully anonymised registry data comprising 431,793 death certificates of Polish residents who died from acute myocardial infarction (AMI). Standardised death rates (SDR) were calculated. Premature mortality was assessed using the Standard Expected Years of Life Lost (SEYLL). Trends were evaluated with joinpoint regression, estimating annual percentage change (APC) and average annual percentage change (AAPC). Results: During the study period, AMI deaths declined from 28,737 in 2000 to 11,328 in 2023, a 2.5-fold reduction. SDR decreased from 115.9 to 31.2 per 100,000, with an overall AAPC of −5.6% (p < 0.05). Declines were greater in men (AAPC −5.7%) than in women (−5.3%). SEYLL decreased from 608,488 years in 2000 to 191,476 years in 2023, representing a >70% reduction, with similar relative declines in men and women. SEYLLd fell from 21.2 to 16.9 years, indicating improved survival and older age at death. A temporary stagnation was observed between 2017 and 2020, followed by renewed steep declines thereafter. Conclusions: AMI mortality and YLL in Poland decreased markedly in the study period, reflecting advances in secondary prevention and public health. Full article

Background/Objectives: Limited information exists on how dietary patterns change in adults who experience weight regain vs. those who maintain weight loss after lifestyle interventions. Methods: Five hundred fifty-two adults (60 ± 1.0 years, 33.8 ± 0.4 kg/m²) with type 2 diabetes mellitus from the Look AHEAD Trial achieved ≥ 7% weight loss after Year 1, completed follow-up visits through Year 4, and provided three 134-item food frequency questionnaires. Weight “regain” (WLR) was defined as regaining ≥ 50% of the initial weight lost. Dietary patterns were determined using established DASH diet scores (scale: 0–9) and principal component analysis (PCA; higher scores = more adherent). Repeated measures linear mixed models assessed group and sex differences in dietary patterns. Results: Dietary patterns were similar between groups during weight loss (baseline to Year 1). WLR DASH scores decreased more from Year 1 to Year 4 compared to “maintain” (WLM) (WLR: Y1: 5.66 ± 0.14, Y4: 4.60 ± 0.14; WLM: Y1: 5.49 ± 0.13, Y4: 4.92 ± 0.13; difference-p < 0.01). Of the two PCA-derived dietary patterns, Pattern 1 (vegetable, fruit, and fish) decreased more in WLR (WLR: Y1: 0.12 ± 0.16, Y4: −0.14 ± 0.16, WLM: Y1: 0.06 ± 0.14, Y4: 0.25 ± 0.15; difference-p < 0.01), while Pattern 2 (low-fiber grains and high-fat animal proteins) increased in WLR (WLR: Y1: 0.40 ± 0.11, Y4: 0.61 ± 0.11, WLM: Y1: 0.34 ± 0.10, Y4: 0.21 ± 0.10, difference-p < 0.01). Sex differences showed that only WLR women and WLM men increased sweets from Y1 to Y4 (WLR women Y1: 0.26 ± 0.04, Y4: 0.41 ± 0.04; p < 0.01; WLM men: Y1: 0.23 ± 0.04, Y4: 0.38 ± 0.04; p < 0.01). Conclusions: These data demonstrate that differences in dietary patterns between WLR and WLM emerge after the initial weight loss intervention with some sex differences. This suggests that longer-term shifts in dietary patterns after lifestyle interventions may influence weight loss maintenance. Full article