Tag: nevin manimala

Radiol Oncol. 2024 Nov 28;58(4):535-543. doi: 10.2478/raon-2024-0059. eCollection 2024 Dec 1.

ABSTRACT

BACKGROUND: In patients with right-sided breast cancer the liver can be partially irradiated during adjuvant radiotherapy (RT). We aimed to determine breast cancer RT effects on liver using with magnetic resonance elastography (MRE) and biological results.

PATIENTS AND METHODS: This retrospective study enrolled 34 patients diagnosed with right-sided breast cancer who underwent adjuvant RT. Liver segment assessments were conducted using MRE for all participants. Additionally, a complete blood count and liver enzyme analysis were performed for each patient. All measurements were taken both prior to the initiation and upon completion of RT.

RESULTS: A statistically significant difference was found in ALT (p = 0.015), ALP (p = 0.026), total protein (p = 0.037), and albumin (p = 0.004) levels before and after RT. The highest mean liver stiffness (kPa) value was recorded in segment 8, while the lowest was observed in segment 6. A weak but statistically significant positive correlation was found between segment 5 stiffness and liver volume (p = 0.039). Additionally, a statistically significant positive correlation was detected between ALP levels and the stiffness values in segment 4A (p = 0.020) and segment 6 (p = 0.003). Conversely, a weak negative correlation was observed between the stiffness values in segment 8 and post-RT total protein levels (p = 0.031).

CONCLUSIONS: MRE can help us identify the level of fibrotic stiffness in the liver segments within the RT area without establishing clinical symptoms. MRE can support the clinician in evaluating the liver functions of right breast cancer patients who underwent RT. We assume these results will facilitate new studies with a large number of patients on MRE imaging at certain intervals in the follow-up of patients with right breast cancer who received RT before the development of radiation-induced liver disease (RILD).

PMID:39608011 | DOI:10.2478/raon-2024-0059

Radiol Oncol. 2024 Nov 28;58(4):573-579. doi: 10.2478/raon-2024-0056. eCollection 2024 Dec 1.

ABSTRACT

BACKGROUND: To compare the diagnostic accuracy and predictive value of aneurysm sac volume measurement versus maximum diameter measurement of abdominal aortic aneurysm sac after endovascular aneurysm repair (EVAR) in patients with type II endoleak.

PATIENTS AND METHODS: Retrospective study on a cohort of 103 patients who presented with a type II endoleak after EVAR for infrarenal abdominal aortic aneurysm. Maximum diameter and volumetric measurements were calculated on computed tomography follow-up scans at 3 months and 1 year after index surgery. Pearson correlation coefficient was used to determine linear association between diameter and volume; Mann-Whitney U test was used to compare patients with and without later intervention for type II endoleak with regard to diameter and volume change.

RESULTS: The correlation between diameter and volume measurement was high (Rho: 0.890-0.980 with P < 0.0001). In 38 out of 103 patients (37%) with type II endoleak, a later intervention for endoleak management was performed; early diameter (P = 0.097), or volume (P = 0.387) change could not predict risk for later intervention.

CONCLUSIONS: Both diameter and volume measurements can be used in the imaging follow-up of patients with endoleak type II after EVAR; however early changes in diameter or volume of the aneurysm sac cannot predict late intervention for type II endoleak.

PMID:39608008 | DOI:10.2478/raon-2024-0056

Radiol Oncol. 2024 Nov 28;58(4):494-500. doi: 10.2478/raon-2024-0062. eCollection 2024 Dec 1.

ABSTRACT

BACKGROUND: Whole-body positron emission tomography/magnetic resonance imaging (WB-PET/MRI) is increasingly used in the initial evaluation of oncology patients. The purpose of this study was to compare the diagnostic performance of WB MRI sequences, attenuation-corrected raw data positron-emission tomography (AC PET), and PET/MRI fused images to detect bone metastases.

PATIENTS AND METHODS: We included 765 consecutive oncologic patients who received WB-PET/MRI from between January 2017 and September 2023. The presence of bone metastases was assessed using the individual sequences by two radiologists. Interobserver agreement was calculated. A receiver operating characteristic (ROC) analysis was performed to assess the performance of each individual sequence and fused images.

RESULTS: Interobserver agreement for the detection of bone metastases on all sequences ranged from good to very good. The reading of the combination of MRI sequences with PET images showed statistically significantly better performance than the reading of individual MRI sequences and PET component only. Contrast enhanced T1 W Volume-interpolated breath-hold examination (CE T1W VIBE) sequence superior to PET for the detection of bone metastasis, but the statistical significance was not as high as with T1W-PET and CE T1W-PET fused images. The highest performance was achieved by the fused CE T1W-PET images with sensitivity of 100%, specificity of 92%, PPV of 96%, and NPV of 100%.

CONCLUSIONS: The combination of these CE T1W VIBE sequences with PET images have the highest diagnostic performance in detecting bone metastases in oncologic patients. This sequence should be integrated in WB-PET/MRI acquisitions for initial staging of cancer.

PMID:39608007 | DOI:10.2478/raon-2024-0062

Radiol Oncol. 2024 Nov 28;58(4):501-508. doi: 10.2478/raon-2024-0060. eCollection 2024 Dec 1.

ABSTRACT

BACKGROUND: Multiparametric magnetic resonance imaging (mpMRI) is a prerequisite for targeted prostate biopsy. The aim of our study was to evaluate the performance and learning curve of the mpMRI-transrectal ultrasound (TRUS) software image fusion (MRI-TRUS fusion) biopsy (BX) process in the first year after its introduction in our urology department.

PATIENTS AND METHODS: MRI-TRUS fusion BX was performed in 293 patients with at least one Prostate Imaging-Reporting and Data System (PIRADS) ≥3 lesion. The proportion of patients and lesions with positive histopathologic result for prostate cancer (PCa) was analyzed. The learning curve for MRI-TRUS fusion BX was assessed at institutional and individual level. Positive BX lesions were further analyzed by PIRADS and Gleason scores.

RESULTS: The proportion of patients with positive histopathologic results for targeted BX, systematic BX, and combined BX was 53.9%, 47.9%, and 63.5%, respectively. The chi-square test for the proportion of PCa positive patients showed no significant difference between the time-based patient groups at the institutional level and no significant difference between individual urologists. PIRADS score (p < 0.001), total PSA concentration (p = 0.05), prostate volume (p < 0.001) and number of cores per lesion (p = 0.034) were significant predictors of a positive histopathologic result in a lesion-based analysis. Clinically significant PCa (csPCa) was confirmed in 34.7% of the 412 BX lesions and 76.4% of the 187 positive PCa lesions.

CONCLUSIONS: MRI-TRUS fusion targeted BX significantly improves the overall rate of PCa detection compared with systematic BX alone. No steep learning curve was observed in our urologists. The proportion of lesions with clinically insignificant PCa was low, limiting overdiagnosis of PCa.

PMID:39608006 | DOI:10.2478/raon-2024-0060

JMIR Form Res. 2024 Nov 28;8:e63262. doi: 10.2196/63262.

ABSTRACT

BACKGROUND: Artificial intelligence (AI) tools hold much promise for mental health care by increasing the scalability and accessibility of care. However, current development and evaluation practices of AI tools limit their meaningfulness for health care contexts and therefore also the practical usefulness of such tools for professionals and clients alike.

OBJECTIVE: The aim of this study is to demonstrate the evaluation of an AI monitoring tool that detects the need for more intensive care in a web-based grief intervention for older mourners who have lost their spouse, with the goal of moving toward meaningful evaluation of AI tools in e-mental health.

METHODS: We leveraged the insights from three evaluation approaches: (1) the F1-score evaluated the tool’s capacity to classify user monitoring parameters as either in need of more intensive support or recommendable to continue using the web-based grief intervention as is; (2) we used linear regression to assess the predictive value of users’ monitoring parameters for clinical changes in grief, depression, and loneliness over the course of a 10-week intervention; and (3) we collected qualitative experience data from e-coaches (N=4) who incorporated the monitoring in their weekly email guidance during the 10-week intervention.

RESULTS: Based on n=174 binary recommendation decisions, the F1-score of the monitoring tool was 0.91. Due to minimal change in depression and loneliness scores after the 10-week intervention, only 1 linear regression was conducted. The difference score in grief before and after the intervention was included as a dependent variable. Participants’ (N=21) mean score on the self-report monitoring and the estimated slope of individually fitted growth curves and its standard error (ie, participants’ response pattern to the monitoring questions) were used as predictors. Only the mean monitoring score exhibited predictive value for the observed change in grief (R2=1.19, SE 0.33; t16=3.58, P=.002). The e-coaches appreciated the monitoring tool as an opportunity to confirm their initial impression about intervention participants, personalize their email guidance, and detect when participants’ mental health deteriorated during the intervention.

CONCLUSIONS: The monitoring tool evaluated in this paper identified a need for more intensive support reasonably well in a nonclinical sample of older mourners, had some predictive value for the change in grief symptoms during a 10-week intervention, and was appreciated as an additional source of mental health information by e-coaches who supported mourners during the intervention. Each evaluation approach in this paper came with its own set of limitations, including (1) skewed class distributions in prediction tasks based on real-life health data and (2) choosing meaningful statistical analyses based on clinical trial designs that are not targeted at evaluating AI tools. However, combining multiple evaluation methods facilitates drawing meaningful conclusions about the clinical value of AI monitoring tools for their intended mental health context.

PMID:39608005 | DOI:10.2196/63262

J Med Internet Res. 2024 Nov 28;26:e53320. doi: 10.2196/53320.

ABSTRACT

BACKGROUND: Nationally, COVID-19 spurred the uptake of telehealth to facilitate patients’ access to medical care, especially among individuals living in geographically isolated areas. Despite the potential benefits of telehealth to address health care access barriers and enhance health outcomes, there are still disparities in the accessibility and utilization of telehealth services. Hence, identifying facilitators and barriers to telehealth should be prioritized to ensure that disparities are mitigated rather than exacerbated.

OBJECTIVE: This study aims to identify factors associated with ever use of telehealth in Nebraska, a primarily rural state with a significant portion of its population living in nonmetropolitan areas.

METHODS: A stratified random sample of Nebraska households (n=5300), with oversampling of census tracts with at least 30% African American, Hispanic, or Native American populations, received a mailed survey (English and Spanish) with web-based response options about social determinants of health and health care access (October 2020-March 2021). Survey weights were used for all calculations. Chi-square tests were used to compare telehealth use (yes or no) by participant sociodemographic, health, and access variables. Robust Poisson regression models were used to compute prevalence odds ratios (POR) with 95% CIs of telehealth use after controlling for socioeconomic, demographic, and health conditions.

RESULTS: The overall response rate was 20.8% (1101/5300). About 25.5% of Nebraska adults had ever used telehealth (urban 26.4%, rural 20.8%), despite 97% of respondents reporting internet access (98.3% urban, 90.5% rural). In the chi-square analysis, telehealth use was statistically significantly more common (P<.05) among those who are aged <45 years (32.4%), female (30.7%), and non-Hispanic (25.9%); with at least a bachelor’s degree (32.6%); who had a routine checkup (30.2%) or health care visit other than a routine checkup (34.2%); and with any chronic health conditions (29.6%) but did not differ (P≥.05) by race, marital status, income, insurance, having a primary care provider, or 1-way travel time for medical visits. In univariate models, internet access, age, sex, ethnicity, education, any health care visit in the past year, and no chronic health condition were significant (P<.05). When adjusted, education (POR 1.87, 95% CI 0.33-10.63) and sex (1.38, 0.93-2.04) were not significant, but internet access (5.43, 1.62-18.16), age <45 (5.33, 2.22-12.81) and 45-64 years (9.05, 2.37-34.62), non-Hispanic ethnicity (7.40, 2.39-22.90), any health care visit (2.43, 1.23-4.79), and any chronic condition (1.73, 1.09-2.76) were significantly associated with having ever used telehealth.

CONCLUSIONS: This study highlights disparities in telehealth use. Despite high coverage, internet access was a significant predictor of telehealth use, highlighting the role of the digital divide in telehealth access and use. Telehealth use was significantly less prevalent among older adults, people without chronic health conditions, and Hispanic individuals. Targeted interventions that address barriers to telehealth use and improve health care access are warranted.

PMID:39608002 | DOI:10.2196/53320

J Med Internet Res. 2024 Nov 28;26:e53932. doi: 10.2196/53932.

ABSTRACT

BACKGROUND: To address geographic barriers to specialty care access for services such as cardiology, the Veterans Health Administration (VA) has implemented a novel, regionalized telehealth care hub. The Clinical Resource Hub (CRH) model extends care, including cardiology services, to individuals in low-access communities across the region. Little is known, however, about the reach of such programs.

OBJECTIVE: This study aimed to describe the initial CRH program implementation in terms of growth in users and clinical encounters, as well as the association between user characteristics and the use of CRH cardiology care, in VA’s Sierra Pacific region (Northern California, Nevada, and the Pacific Islands).

METHODS: We compared patients who used CRH cardiology services (CRH users) to those using non-CRH cardiology services (CRH nonusers) in the Sierra Pacific region between July 15, 2021, and March 31, 2023. After characterizing changes in the numbers of CRH users and nonusers and clinical encounters over the study period, we used multivariable logistic regression to estimate the association between patient-level factors and the odds of being a CRH user.

RESULTS: There were 804 CRH users over the study period, with 1961 CRH encounters concentrated at 3 main CRH sites. The CRH program comprised a minority of cardiology users and encounters in the region, with 19,583 CRH nonusers with 83,489 encounters. The numbers of CRH patients and encounters both increased at a steady-to-increasing rate over the study period, with increases of 37% (n=292 vs n=213) in users and 64% (n=584 vs n=356) in encounters in the first quarter of 2023 compared with the last quarter of 2022. Among CRH users, 8.3% (67/804) were female and 41.4% (333/804) were aged ≥75 years, compared with 4.3% (840/19,583) and 49% (9600/19,583), respectively, among CRH nonusers. The proportions of rural (users: 205/804, 25.5%; nonusers: 4936/19,583, 25.2%), highly disabled (users: 387/804, 48.1%; nonusers: 9246/19,583, 47.2%), and low-income (users: 165/804, 20.5%; nonusers: 3941/19,583, 20.1%) veterans in both groups were similar. In multivariable logistic models, adjusted odds ratios of using CRH were higher for female veterans (1.70, 95% CI 1.29-2.24) and lower for older veterans (aged ≥75 years; 0.33, 95% CI 0.23-0.47). Rural veterans also had a higher adjusted odds ratio of using CRH (1.19, 95% CI 1.00-1.42; P=.046).

CONCLUSIONS: The VA’s Sierra Pacific CRH cardiology program grew substantially in its first 2 years of operation, serving disproportionately more female and rural veterans and similar proportions of highly disabled and low-income veterans compared to conventional VA care. This model appears to be effective for overcoming specialty care access barriers for certain individuals, although targeted efforts may be required to reach older veterans. While this study focuses on a single region, specialty, and health care system, lessons from implementing regionalized telehealth hub models may be applicable to other settings.

PMID:39607997 | DOI:10.2196/53932

J Pediatr Psychol. 2024 Nov 28:jsae097. doi: 10.1093/jpepsy/jsae097. Online ahead of print.

ABSTRACT

OBJECTIVES: Anxiety disorders affect 20%-50% of youth with chronic medical conditions (CMCs) and can interfere with medical care and treatment outcomes. Psychological therapies are typically designed for youth without CMCs; thus, this systematic review (Open Science Framework preregistration osf.io/a52nd/) assesses the effect of psychological therapies on anxiety, functional impairment and health-related quality of life (HRQOL) in this unique population.

METHODS: We included randomized controlled trials of psychological therapies vs. any comparator for youth (ages 24 and younger) with CMCs that assessed child anxiety. We excluded studies of adults and those not in English. Medline, Embase, PsycInfo, and CENTRAL databases were searched, studies were screened using COVIDENCE software, and meta-analysis was undertaken in R. Study quality was assessed using the Cochrane Risk of Bias tool, version 2. Quality of evidence was assessed using the GRADE system.

RESULTS: Thirty-three studies with 2676 participants (ages 5-21 years) were included in the meta-analysis. Nearly all had at least some risk of bias. Overall, psychological interventions resulted in lower anxiety (Hedges’ g = -0.48 [-0.71; -0.25]), but did not have a significant effect on functional impairment or HRQOL. Based on the GRADE criteria, we have moderate confidence in these results. Treatments with higher risk of bias and those with live therapist components had greater effects on anxiety.

CONCLUSIONS: Psychological interventions may be effective for improving anxiety for children and youth with CMCs, particularly those with a live therapist. More high-quality studies are needed to understand what components produce the best outcomes for patients.

PMID:39607990 | DOI:10.1093/jpepsy/jsae097

Braz J Cardiovasc Surg. 2024 Nov 28;e20230254(e20230254). doi: 10.21470/1678-9741-2023-0254.

ABSTRACT

OBJECTIVE: To compare the efficacy of isolated off-pump coronary artery bypass grafting (OPCABG) and of coronary artery bypass grafting (CABG) plus mitral valve plasty (MVP) in treating coronary heart disease with moderate ischemic mitral regurgitation to find a better surgical method.

METHODS: Clinical data of 822 patients diagnosed with coronary heart disease and moderate ischemic mitral regurgitation were analyzed retrospectively. Patients were divided into the OPCABG and CABG+MVP groups according to surgical methods. Baseline data of both groups were corrected, and clinical efficacy of the two surgical methods was analyzed and compared using the propensity score inverse probability of treatment weighting (IPTW) method.

RESULTS: There were no significant differences in the use of mammary artery grafts, number of grafts, and blood product consumption between the two groups (P>0.05) after IPTW. However, the CABG+MVP group had a significantly longer operation time than the OPCABG group (4.13 ± 0.85 hours vs. 5.65 ± 1.02 hours, P<0.001). No statistically significant differences in postoperative major adverse cardiac and cerebrovascular events were observed between the two groups. However, the intra-aortic balloon pump rate was higher in the CABG+MVP group than in the OPCABG group (12.3% vs. 25.0%, P=0.012). Although CABG+MVP can improve ischemic mitral regurgitation significantly (95.4% vs. 81.2%, P<0.001), there were no significant differences in the cumulative survival rate and the incidence of major adverse cardiac and cerebrovascular events between the groups (P>0.05) after IPTW.

CONCLUSION: CABG+MVP may not provide more advantage in patients with coronary heart disease and moderate ischemic mitral regurgitation.

PMID:39607971 | DOI:10.21470/1678-9741-2023-0254

N Z Med J. 2024 Nov 29;137(1606):107-109. doi: 10.26635/6965.6701.

ABSTRACT

Disruption to the circadian clock has impacts on health and wellbeing, including impaired immune function and wound healing. It is plausible that the timing of surgical procedures could impact the body’s response to trauma and susceptibility to infections. Using the Health Quality & Safety Commission data on surgical site infections (SSI) we sought to investigate any possible time of day effects on the incidents of recorded infections. All recorded data from June 2017 to July 2021 were extracted for cardiac and orthopaedic operations in New Zealand. The incidence of SSI was calculated for each 4-hour bin of time across the day. There was a total of 87,034 cases in the analysis, of which 1,327 (1.5%) had an infection. Univariately, there was a significant time of day effect, with operations after 8 pm being 3.91 times more likely to have an infection (p<0.001), and operations between 4 pm and 8 pm being 0.71 times more likely (p=0.03) to have an infection compared to operations conducted between 12 pm and 4 pm. However, when age, acuity and American Society of Anesthesiologists score were included in the model, there were no differences in the rate of infection by time of day. This preliminary work suggests that surgical time of day does not significantly impact incidence of surgical infection when other variables are controlled for. However, this work has not considered other factors that may also be important. We plan to link the SSI data with the National Minimum Dataset to investigate these other factors and conduct a more comprehensive analysis.

PMID:39607969 | DOI:10.26635/6965.6701