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Nevin Manimala Statistics

Practice Patterns and Barriers to Vascular Genetic Testing among Vascular Surgeons

Ann Vasc Surg. 2024 Apr 8:S0890-5096(24)00180-8. doi: 10.1016/j.avsg.2024.01.032. Online ahead of print.

ABSTRACT

INTRODUCTION: Engaging patients living with or at risk for aortic dissection via the Aortic Dissection Collaborative, physician education in vascular genetics was identified as a research priority. We surveyed vascular surgeons to characterize practice patterns, motivations, and barriers regarding aortopathy genetic testing.

METHODS: An anonymous 27-question survey was distributed on social media platforms between November and December 2022. Domains included: demographics, vascular genetic education, testing attitudes and utilization, and experience in treating patients with genetic vascular aortopathies. The analysis included summary statistics and unpaired t-test to compare responses by interest in incorporating testing and practice type.

RESULTS: 171 vascular surgeons from 15 countries responded to the survey (23% trainees). Over half received vascular genetics education during training (59%) and most (86%) were interested in incorporating genetic testing into their practice. Academic surgeons were more likely to have cared for a patient with a known genetic aortopathy over the past year as compared to surgeons in hospital-based and private practices (83% vs 56% vs 27%; p<0.01), to have ever made a referral to a medical geneticist (78% vs 51% vs 9%; p<0.01) and have access to genetic counselors or geneticists (66% vs 46% vs 0%; p<0.01). Barriers to genetic testing were rated as more significant by surgeons in non-academic practices, with top barriers being insurance coverage of testing, cost of genetic testing, and access to genetic counselors. Evidence-based professional society guidelines were the strongest rated motivating factor for testing incorporation among respondents.

CONCLUSION: Vascular surgeon attitudes are not major barriers to incorporating genetic testing for patients with aortopathies, however practical challenges regarding genetic testing and counseling are barriers to implementation especially for vascular surgeons in non-academic practices. Future efforts should focus on evidence-based society guidelines, continuing medical education to increase adoption, and facilitating access to genetic counseling.

PMID:38599485 | DOI:10.1016/j.avsg.2024.01.032

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Nevin Manimala Statistics

Predictors of heart failure readmission and all-cause mortality in patients with acute heart failure

Int J Cardiol. 2024 Apr 8:132036. doi: 10.1016/j.ijcard.2024.132036. Online ahead of print.

ABSTRACT

BACKGROUND: Predischarge risk stratification of patients with acute heart failure (AHF) could facilitate tailored treatment and follow-up, however, simple scores to predict short-term risk for HF readmission or death are lacking.

METHODS: We sought to develop a congestion-focused risk score using data from a prospective, two-center observational study in adults hospitalized for AHF. Laboratory data were collected on admission. Patients underwent physical examination, 4-zone, and in a subset 8-zone, lung ultrasound (LUS), and echocardiography at baseline. A second LUS was performed before discharge in a subset of patients. The primary endpoint was the composite of HF hospitalization or all-cause death.

RESULTS: Among 350 patients (median age 75 years, 43% women), 88 participants (25%) were hospitalized or died within 90 days after discharge. A stepwise Cox regression model selected four significant independent predictors of the composite outcome, and each was assigned points proportional to its regression coefficient: NT-proBNP ≥2000 pg/mL (admission) (3 points), systolic blood pressure < 120 mmHg (baseline) (2 points), left atrial volume index ≥60 mL/m2 (baseline) (1 point) and ≥ 9 B-lines on predischarge 4-zone LUS (3 points). This risk score provided adequate risk discrimination for the composite outcome (HR 1.48 per 1 point increase, 95% confidence interval: 1.32-1.67, p < 0.001, C-statistic: 0.70). In a subset of patients with 8-zone LUS data (n = 176), results were similar (C-statistic: 0.72).

CONCLUSIONS: A four-variable risk score integrating clinical, laboratory and ultrasound data may provide a simple approach for risk discrimination for 90-day adverse outcomes in patients with AHF if validated in future investigations.

PMID:38599465 | DOI:10.1016/j.ijcard.2024.132036

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Nevin Manimala Statistics

Decreased Prevalence of New-Onset Adhesive Capsulitis in Patients Prescribed Angiotensin Receptor Blockers

J Shoulder Elbow Surg. 2024 Apr 8:S1058-2746(24)00237-4. doi: 10.1016/j.jse.2024.02.035. Online ahead of print.

ABSTRACT

BACKGROUND: Angiotensin receptor blockers (ARBs) are commonly prescribed antihypertensive agents that have well-known antifibrotic properties. The purpose of this study was to examine the association between ARB use and the rates of new-onset adhesive capsulitis as well as adhesive capsulitis requiring operative treatment.

METHODS: Using a large national insurance database, a randomly generated cohort of patients with at least 3 continuous months of ARB use between January 2010 and December of 2019 (n=1,000,000) was compared to a separate randomly generated cohort without ARB use (n=3,000,000) . Rates of newly diagnosed adhesive capsulitis and associated manipulation under anesthesia and/or arthroscopic capsulotomy were calculated over a one- and two-year period following the completion of at least 3 continuous months of ARB therapy. Rates were compared using multivariable logistic regression to control for demographics and comorbidities. Both unadjusted and adjusted odds ratios (aOR) and 95% confidence intervals (CI) were calculated and reported for each comparison. Statistical significance was set at P<0.05.

RESULTS: The mean age in the ARBs cohort was 61.8 years (SD = 10.0), while in the control cohort, it was 54.8 years (SD = 12.3) (p < 0.001). The ARBs cohort had significantly lower rates of newly diagnosed adhesive capsulitis compared to the control cohort at both one year (0.15% vs. 0.55%, p < 0.001) and two years (0.3% vs. 0.78%, p < 0.001). Similar findings were observed for the arthroscopic capsular release/MUA cohort associated with adhesive capsulitis. After adjusting for confounding factors, the lower rates of adhesive capsulitis and arthroscopic capsular release/MUA associated with adhesive capsulitis in the ARBs cohort remained statistically significant (p < 0.001).

CONCLUSION: Patients prescribed ARBs experienced a decrease rate of newly diagnosed adhesive capsulitis, as well as adhesive capsulitis requiring surgical intervention when compared to a control cohort. These findings suggest a potential protective effect of ARBs against the development of adhesive capsulitis. Further investigations are warranted to elucidate the underlying mechanisms and establish a causal relationship.

PMID:38599458 | DOI:10.1016/j.jse.2024.02.035

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Nevin Manimala Statistics

Complications of Antibiotic Cement Spacers Used for Elbow Infections

J Shoulder Elbow Surg. 2024 Apr 8:S1058-2746(24)00235-0. doi: 10.1016/j.jse.2024.02.033. Online ahead of print.

ABSTRACT

INTRODUCTION: Antibiotic cement spacers have been widely used in the treatment of joint infections. There are no commercially available antibiotic spacers for the elbow. Instead, they are typically fashioned by the surgeon at the time of surgery using cement alone or a combination of cement with sutures, Steinmann pins, external fixator components, or elbow arthroplasty components. There is no consensus regarding the ideal elbow antibiotic spacer and no previous studies have examined the complications associated with these handmade implants in relation to their unique structural design.

METHODS: We retrospectively reviewed 55 patients who had 78 static antibiotic cement spacers implanted between January 1998 and February 2021 as part of a 2-stage treatment plan for infection of an elbow arthroplasty, other elbow surgery, or primary elbow infection. Several antibiotic spacer structures were used during the study period. For analysis purposes, the spacers were classified into linked and unlinked spacers based on whether there was a linking mechanism between the humerus and the ulna. Complications related to these spacers that occurred either during the implantation, between implantation and removal, or during removal were recorded and analyzed from chart review and follow-up x rays. Re-operations due to spacer-related complications were also recorded.

RESULTS: Among the 55 patients (78 spacers), there were 23 complications, including 17 minor and 6 major complications. The most common complication of unlinked spacers (intramedullary (IM) dowels, beads and cap spacer) was spacer displacement. Other complications included IM dowel fracture and difficulty locating beads during spacer removal. The major complications of linked cement spacers included two periprosthetic humerus fractures after internal external fixator cement spacers and re-operation due to breakage and displacement of one bushing cement spacer. The major complications of unlinked cement spacers included two reoperations due to IM dowel displacement and one reoperation due to displacement of beads. Among patients who had removal of all components and those with native joints, there was no statistically significant difference between internal external fixator cement spacers and unlinked cement spacers in minor complication rates (30% versus 16%, p=0.16), major complication rates (7% versus 8%, p=0.85) and re-operation rates (0% versus 8%, p=0.12).

CONCLUSIONS: Static handmade antibiotic elbow spacers have unique complications related to their structural designs. The most common complication of linked and non-linked cement spacers were failure of the linking mechanism and displacement, respectively. Surgeons should keep in mind the possible complications of different structures of cement spacers when choosing one antibiotic spacer structure over another.

PMID:38599456 | DOI:10.1016/j.jse.2024.02.033

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Nevin Manimala Statistics

Effects of ambient temperature, relative humidity and absolute humidity on risk of nasopharyngeal carcinoma in China

Int J Cancer. 2024 Apr 10. doi: 10.1002/ijc.34933. Online ahead of print.

ABSTRACT

Nasopharyngeal carcinoma (NPC) has a unique geographic distribution. It is unknown whether meteorological factors are related to the incidence of NPC. To investigate the effect of ambient temperature, relative humidity (RH), and absolute humidity (AH) on the incidence of NPC, we collected the incidence rate of NPC in 2016 and meteorological data from 2006 to 2016 from 484 cities and counties across 31 provinces in China. Generalized additive models with quasi-Poisson regression and generalized linear models with natural cubic splines were employed respectively to elucidate the nonlinear relationships and specify the partial linear relationships. Subgroup and interactive analysis were also conducted. Temperature (R2 = 0.68, p < .001), RH (R2 = 0.47, p < .001), and AH (R2 = 0.70, p < .001) exhibited nonlinear correlations with NPC incidence rate. The risk of NPC incidence increased by 20.3% (95% confidence intervals [CI]: [18.9%, 21.7%]) per 1°C increase in temperature, by 6.3% (95% CI: [5.3%, 7.2%]) per 1% increase in RH, and by 32.2% (95% CI: [30.7%, 33.7%]) per 1 g/m3 increase in AH, between their the 25th and the 99th percentiles. In addition, the combination of low temperature and low RH was also related to increased risk (relative risk: 1.60, 95% CI: [1.18, 2.17]). Males and eastern or rural populations tended to be more vulnerable. In summary, this study suggests that ambient temperature, RH, and particularly AH are associated with the risk of NPC incidence.

PMID:38598851 | DOI:10.1002/ijc.34933

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Nevin Manimala Statistics

Food for Thought: Optical Sensor Arrays and Machine Learning for the Food and Beverage Industry

ACS Sens. 2024 Apr 10. doi: 10.1021/acssensors.4c00252. Online ahead of print.

ABSTRACT

Arrays of cross-reactive sensors, combined with statistical or machine learning analysis of their multivariate outputs, have enabled the holistic analysis of complex samples in biomedicine, environmental science, and consumer products. Comparisons are frequently made to the mammalian nose or tongue and this perspective examines the role of sensing arrays in analyzing food and beverages for quality, veracity, and safety. I focus on optical sensor arrays as low-cost, easy-to-measure tools for use in the field, on the factory floor, or even by the consumer. Novel materials and approaches are highlighted and challenges in the research field are discussed, including sample processing/handling and access to significant sample sets to train and test arrays to tackle real issues in the industry. Finally, I examine whether the comparison of sensing arrays to noses and tongues is helpful in an industry defined by human taste.

PMID:38598846 | DOI:10.1021/acssensors.4c00252

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Nevin Manimala Statistics

The Effect of the Stopping Elderly Accidents, Deaths, and Injuries Program on Falls Prevention in Neurosurgical Patients

J Neurosci Nurs. 2024 Apr 9. doi: 10.1097/JNN.0000000000000753. Online ahead of print.

ABSTRACT

BACKGROUND: Despite the negative consequences of falls among neurosurgery patients in acute care settings, there is a lack of high-quality evidence for successful fall prevention programs. This study was conducted to evaluate the effectiveness of the Stopping Elderly Accidents, Deaths, and Injuries (STEADI) program on falling prevention compared with routine falling protocol in neurosurgical patients in Jordan. METHODS: A prospective quasi-experimental design was used in this study. The sample comprised 70 neurosurgical patients from a major university-affiliated hospital in Jordan. The study sample was assigned into a control group (35 patients) and an intervention group (35 patients). A demographics questionnaire, and different fall risk screening tools and tests were used in this study as recommended by the STEADI program. RESULTS: Multivariate analysis of variance results showed a significant effect (P = .001) of the STEADI program on the linear combination of outcome measures. Independent samples t tests further confirmed the program’s effectiveness, with statistically significant mean differences in most outcome measures between the intervention and control groups post intervention. After implementing the study intervention, participants in the intervention group had a statistically significant lower risk for falls. CONCLUSION: The findings indicate potential effectiveness in improving neurosurgery patients’ outcomes and reducing the risk of falls. Implementing the study recommendations can enhance patient safety and promote evidence-based fall prevention interventions in neurosurgery patients.

PMID:38598842 | DOI:10.1097/JNN.0000000000000753

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Nevin Manimala Statistics

Alectinib in Resected ALK-Positive Non-Small-Cell Lung Cancer

N Engl J Med. 2024 Apr 11;390(14):1265-1276. doi: 10.1056/NEJMoa2310532.

ABSTRACT

BACKGROUND: Platinum-based chemotherapy is the recommended adjuvant treatment for patients with resectable, ALK-positive non-small-cell lung cancer (NSCLC). Data on the efficacy and safety of adjuvant alectinib as compared with chemotherapy in patients with resected ALK-positive NSCLC are lacking.

METHODS: We conducted a global, phase 3, open-label, randomized trial in which patients with completely resected, ALK-positive NSCLC of stage IB (tumors ≥4 cm), II, or IIIA (as classified according to the seventh edition of the Cancer Staging Manual of the American Joint Committee on Cancer and Union for International Cancer Control) were randomly assigned in a 1:1 ratio to receive oral alectinib (600 mg twice daily) for 24 months or intravenous platinum-based chemotherapy in four 21-day cycles. The primary end point was disease-free survival, tested hierarchically among patients with stage II or IIIA disease and then in the intention-to-treat population. Other end points included central nervous system (CNS) disease-free survival, overall survival, and safety.

RESULTS: In total, 257 patients were randomly assigned to receive alectinib (130 patients) or chemotherapy (127 patients). The percentage of patients alive and disease-free at 2 years was 93.8% in the alectinib group and 63.0% in the chemotherapy group among patients with stage II or IIIA disease (hazard ratio for disease recurrence or death, 0.24; 95% confidence interval [CI], 0.13 to 0.45; P<0.001) and 93.6% and 63.7%, respectively, in the intention-to-treat population (hazard ratio, 0.24; 95% CI, 0.13 to 0.43; P<0.001). Alectinib was associated with a clinically meaningful benefit with respect to CNS disease-free survival as compared with chemotherapy (hazard ratio for CNS disease recurrence or death, 0.22; 95% CI, 0.08 to 0.58). Data for overall survival were immature. No unexpected safety findings were observed.

CONCLUSIONS: Among patients with resected ALK-positive NSCLC of stage IB, II, or IIIA, adjuvant alectinib significantly improved disease-free survival as compared with platinum-based chemotherapy. (Funded by F. Hoffmann-La Roche; ALINA ClinicalTrials.gov number, NCT03456076.).

PMID:38598794 | DOI:10.1056/NEJMoa2310532

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Nevin Manimala Statistics

The Potential Mediating Effect of Symptom Burden on Demoralization Through Locus of Control and Coping Strategies in Chinese Patients With Cancer

Cancer Nurs. 2024 Apr 10. doi: 10.1097/NCC.0000000000001350. Online ahead of print.

ABSTRACT

BACKGROUND: Demoralization is a psychological syndrome that is highly prevalent in patients with cancer and detrimental to individuals’ physical and mental health. To explore effective intervention, we first determined the relationships between locus of control, coping strategies, symptom burden, and demoralization.

OBJECTIVE: The aim of this study was to determine the relationship between symptom burden, locus of control, coping strategies, and demoralization in patients with cancer.

METHODS: In this descriptive-correlational study, 273 valid patients were selected with convenience sampling method from a hospital in China. Data were collected using the Chinese version of the M.D. Anderson Symptom Inventory, the Chinese version of the Multidimensional Health Locus of Control Scale, the Chinese version of the Medical Coping Modes Questionnaire, and the Mandarin version of the Demoralization Scale. Data were analyzed using descriptive and inferential statistics using SPSS and AMOS.

RESULTS: A total of 115 patients (42.12%) experienced clinical demoralization (Mandarin version of the Demoralization Scale > 30). Symptom burden (β = 0.295, P < .001), confrontation (β = -0.117, P = .028), and resignation (β = 0.456, P < .001) had direct effects on demoralization. Symptom burden also had an indirect effect on demoralization through the mediating role of resignation (β = 0.026, P = .002). Meanwhile, locus of control can affect demoralization entirely through the indirect mediating role of coping strategies (chance locus of control via resignation [β = 0.138, P < .01], powerful locus of control via confrontation [β = -0.017, P < .05]).

CONCLUSIONS: Symptom burden affects demoralization not only directly but also indirectly. Coping strategies play an important mediating role between symptom burden, locus of control, and demoralization in patients with cancer.

IMPLICATIONS FOR PRACTICE: It is urgent to screen demoralization and identify patients with high symptom burden, maladaptive locus of control, or coping strategies. For the patients targeted, a more comprehensive and systematic approach to symptom management and more appropriate guidance related to adaptive coping strategies are needed.

PMID:38598755 | DOI:10.1097/NCC.0000000000001350

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Nevin Manimala Statistics

Effects of Achieving Rapid, Intensive, and Sustained Blood Pressure Reduction in Intracerebral Hemorrhage Expansion and Functional Outcome

Neurology. 2024 May 14;102(9):e209244. doi: 10.1212/WNL.0000000000209244. Epub 2024 Apr 10.

ABSTRACT

BACKGROUND AND OBJECTIVES: The time taken to achieve blood pressure (BP) control could be pivotal in the benefits of reducing BP in acute intracerebral hemorrhage (ICH). We aimed to assess the relationship between the rapid achievement and sustained maintenance of an intensive systolic BP (SBP) target with radiologic, clinical, and functional outcomes.

METHODS: Rapid, Intensive, and Sustained BP lowering in Acute ICH (RAINS) was a multicenter, prospective, observational cohort study of adult patients with ICH <6 hours and SBP ≥150 mm Hg at 4 Comprehensive Stroke Centers during a 4.5-year period. Patients underwent baseline and 24-hour CT scans and 24-hour noninvasive BP monitoring. BP was managed under a rapid (target achievement ≤60 minutes), intensive (target SBP <140 mm Hg), and sustained (target stability for 24 hours) BP protocol. SBP target achievement ≤60 minutes and 24-hour SBP variability were recorded. Outcomes included hematoma expansion (>6 mL or >33%) at 24 hours (primary outcome), early neurologic deterioration (END, 24-hour increase in NIH Stroke Scale score ≥4), and 90-day ordinal modified Rankin scale (mRS) score. Analyses were adjusted by age, sex, anticoagulation, onset-to-imaging time, ICH volume, and intraventricular extension.

RESULTS: We included 312 patients (mean age 70.2 ± 13.3 years, 202 [64.7%] male). Hematoma expansion occurred in 70/274 (25.6%) patients, END in 58/291 (19.9%), and the median 90-day mRS score was 4 (interquartile range, 2-5). SBP target achievement ≤60 minutes (178/312 [57.1%]) associated with a lower risk of hematoma expansion (adjusted odds ratio [aOR] 0.43, 95% confidence interval [CI] 0.23-0.77), lower END rate (aOR 0.43, 95% CI 0.23-0.80), and lower 90-day mRS scores (aOR 0.48, 95% CI 0.32-0.74). The mean 24-hour SBP variability was 21.0 ± 7.6 mm Hg. Higher 24-hour SBP variability was not related to expansion (aOR 0.99, 95% CI 0.95-1.04) but associated with higher END rate (aOR 1.15, 95% CI 1.09-1.21) and 90-day mRS scores (aOR 1.06, 95% CI 1.04-1.10).

DISCUSSION: Among patients with acute ICH, achieving an intensive SBP target within 60 minutes was associated with lower hematoma expansion risk. Rapid SBP reduction and stable sustention within 24 hours were related to improved clinical and functional outcomes. These findings warrant the design of randomized clinical trials examining the impact of effectively achieving rapid, intensive, and sustained BP control on hematoma expansion.

CLASSIFICATION OF EVIDENCE: This study provides Class III evidence that in adults with spontaneous ICH and initial SBP ≥150 mm Hg, lowering SBP to <140 mm Hg within the first hour and maintaining this for 24 hours is associated with decreased hematoma expansion.

PMID:38598746 | DOI:10.1212/WNL.0000000000209244