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Nevin Manimala Statistics

Association between antihypertensive drugs and hepatocellular carcinoma: a trans-ancestry and drug-target Mendelian randomization study

Liver Int. 2023 Apr 2. doi: 10.1111/liv.15566. Online ahead of print.

ABSTRACT

BACKGROUND & AIMS: Antihypertensive drugs were recently reported to have an oncogenic role in common cancer, however, whether these drugs would affect the risk of hepatocellular carcinoma (HCC) remains unclear.

METHODS: A drug-target Mendelian randomization method was adopted to examine the long-term effect of 12 antihypertensive drugs classes on the risk of HCC in Europeans and East Asians. To proxy antihypertensive drugs, we leveraged genetic variants located near or within drug target genes that were associated with systolic blood pressure (SBP). Genetically proxied drugs associated with reduced risk of coronary artery disease were included in primary analysis. Genetic summary statistics of SBP and HCC were derived from publicly available large-scale genome-wide association studies in Europeans and East Asians, respectively. Expression quantitative trait loci (eQTLs) of drugs target genes were used to proxy drugs in a sensitivity analysis.

RESULTS: Genetically proxied thiazides and related diuretics were associated with decreased risk of HCC in both Europeans (OR [95% CI]:0.79 [0.73,0.86] per 1mmHg reduction in SBP; P<0.001) and East Asians (0.60 [0.45,0.82]; P=0.001). Genetically proxied beta-adrenoceptor blockers (BBs) were strongly associated with increased risk of HCC in Europeans (1.46 [1.12,1.91]; P=0.004). These findings were replicated in deCODE genetics study and remained consistent when using eQTLs to proxy antihypertensive drugs.

CONCLUSIONS: Our findings suggested that thiazides diuretics may lower the risk of HCC in both Europeans and East Asians, while BBs may increase the risk of HCC specifically in Europeans. Further studies are warranted to explore the potential of repurposing or retargeting antihypertensive drugs for HCC prevention.

PMID:37005366 | DOI:10.1111/liv.15566

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Providing comparison normal examples alongside pathologic thoracic radiographic cases can improve veterinary students’ ability to identify abnormal findings or diagnose disease

Vet Radiol Ultrasound. 2023 Apr 2. doi: 10.1111/vru.13232. Online ahead of print.

ABSTRACT

Learning by comparison is a frequently employed education strategy used across many disciplines and levels. Interpreting radiographs requires both skills of perception and pattern recognition, which makes comparison techniques particularly useful in this field. In this randomized, prospective, parallel-group study, students enrolled in second and third-year radiology veterinary courses were given a case-based thoracic radiographic interpretation assignment. A cohort of the participants was given cases with side-by-side comparison normal images while the other cohort only had access to the cases. Twelve cases in total were presented to the students, with 10 cases depicting examples of common thoracic pathologies, while 2 cases were examples of normal. Radiographs of both feline and canine species were represented. Correctness of response to multiple choice questions was tracked, as was year and group (group 1: non compare, Control; group 2: compare, Intervention). Students assigned to group 1 had a lower percentage of correct answers than students assigned to group 2 (45% Control vs. 52% Intervention; P = 0.01). This indicates that side-by-side comparison to a normal example is helpful in identifying disease. No statistical significance was noted for the correctness of responses according to the year of training (P = 0.90). The overall poor performance on the assignment, regardless of group or year, shows that students in the early years of undergraduate veterinary radiology training struggle with the interpretation of common pathologies, likely a result of a lack of exposure to a multitude of cases and normal variants.

PMID:37005363 | DOI:10.1111/vru.13232

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Comparison of Disaster Medicine Education in Emergency Medicine Residency and Emergency Medical Services Fellowship in the United States

Prehosp Disaster Med. 2023 Apr 3:1-6. doi: 10.1017/S1049023X23000407. Online ahead of print.

ABSTRACT

INTRODUCTION: Disaster Medicine (DM) is defined by Koenig and Shultz as the “disciplines and organizations involved with governmental public health, public and private medical delivery including Emergency Medical Services (EMS), and governmental emergency management.” The Accreditation Council for Graduate Medical Education (ACGME) sets curriculum requirements and standards for Emergency Medicine (EM) residencies and EMS fellowships, which include a limited portion of the DM curriculum topics recommended by the Society of Academic Emergency Medicine (SAEM). The ACGME does not currently approve DM fellowships, as DM is not recognized as a subspecialty by the American Board of Medical Specialties (ABMS). This lack of nationally standardized guidelines for DM training leads to variability in disaster-related knowledge and skills, even among physicians trained by ACGME-accredited programs.

STUDY OBJECTIVE: The objective of this study is to analyze the DM components covered in EM residency and EMS fellowship in the United States and compare those to SAEM DM fellowship curriculum guidelines.

METHODS: The DM curriculum components of EM residencies and EMS fellowships were evaluated, using the SAEM DM curriculum as a control. Overlapping topics, as well as gaps between the programs, were analyzed using descriptive statistics.

RESULTS: Of the DM curriculum components developed by SAEM, EMS fellowship covered 15 of 19 (79%) major curriculum components and 38 of 99 (38%) subtopics, while EM residency covered seven of 19 major curriculum components (37%) and 16 of 99 (16%) subtopics. Together, EM residency and EMS fellowship cover 16 of 19 (84%) major curriculum components and 40 of 99 (40%) subtopics.

CONCLUSION: While EMS fellowship covers a large portion of the DM major curriculum components recommended by SAEM, there are several important DM subtopics that are not covered either in EM residency or EMS fellowship. Furthermore, there is no standardization for the depth and manner that DM topics are addressed in either curriculum. Time constraints in EM residency and EMS fellowship may also prevent extensive review of important DM topics. Disaster Medicine covers a distinct body of knowledge, represented in the curriculum subtopics, that are not covered in either EM residency or EMS fellowship. The development of an ACGME-accredited DM fellowship and recognition of DM as a distinct subspecialty could allow for more effective DM graduate medical education.

PMID:37005359 | DOI:10.1017/S1049023X23000407

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Assessment of consistency between peer-reviewed publications and clinical trial registrations in nursing journals

Worldviews Evid Based Nurs. 2023 Apr 2. doi: 10.1111/wvn.12644. Online ahead of print.

ABSTRACT

BACKGROUND: The inconsistencies between randomized clinical trials (RCTs) registrations and peer-reviewed publications may distort trial results and threaten the validity of evidence-based medicine. Previous studies have found many inconsistencies between RCTs registrations and peer-reviewed publications, and outcome reporting bias is prevalent.

AIMS: The aims of this review were to assess whether the primary outcomes and other data reported in publications and registered records in RCTs of nursing journals were consistent and whether discrepancies in the reporting of primary outcomes favored statistically significant results. Moreover, we reviewed the proportion of RCTs for prospective registration.

METHODS: We systematically searched PubMed for RCTs published in the top 10 nursing journals between March 5, 2020, and March 5, 2022. Registration numbers were extracted from the publications, and registered records were identified from the registration platforms. The publications and registered records were compared to identify consistency. Inconsistencies were subdivided into discrepancies and omissions.

RESULTS: A total of 70 RCTs published in seven journals were included. The inconsistencies involved sample size estimation (71.4%), random sequence generation (75.7%), allocation concealment (97.1%), blinding (82.9%), primary outcomes (60.0%) and secondary outcomes (84.3%). Among the inconsistencies in the primary outcomes, 21.4% were due to discrepancies and 38.6% resulted from omissions. Fifty-three percent (8/15) presented discrepancies in the primary outcomes that favored statistically significant results. Additionally, although only 40.0% of the studies were prospective registrations, the number of prospectively registered trials has trended upward over time.

LINKING EVIDENCE TO ACTION: While not including all RCTs in the nursing field, our sample reflected a general trend: inconsistencies between publications and trial registrations were prevalent in the included nursing journals. Our research helps to provide a way to improve the transparency of research reports. Ensuring that clinical practice has access to transparent and reliable research results are essential to achieve the best possible evidence-based medicine.

PMID:37005350 | DOI:10.1111/wvn.12644

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Nevin Manimala Statistics

Physiologically-based pharmacokinetic modeling to inform combination dosing regimens of ceftaroline and daptomycin in special populations

Br J Clin Pharmacol. 2023 Apr 2. doi: 10.1111/bcp.15731. Online ahead of print.

ABSTRACT

INTRODUCTION: The combination of daptomycin and ceftaroline used as salvage therapy is associated with higher survival and decreased clinical failure in complicated methicillin-resistant Staphylococcus aureus (MRSA) infections that are resistant to standard MRSA treatment.

OBJECTIVES: This study aimed to evaluate dosing regimens for co-administration of daptomycin and ceftaroline in special populations including pediatrics, renally impaired (RI), obese and geriatrics that generate sufficient coverage against daptomycin-resistant MRSA.

METHODS: PBPK models were developed from pharmacokinetic studies of healthy adults, geriatrics, pediatrics, obese, and RI patients. The predicted profiles were used to evaluate joint probability of target attainment (PTA), as well as tissue-to-plasma ratios.

RESULTS: The adult dosing regimens of 6 mg/kg q24h or q48h daptomycin and 300-600 mg q12h ceftaroline fosamil by RI categories achieved ≥90% joint PTA when the minimum inhibitory concentrations (MICs) in the combination are at or below 1 and 4 μg/mL against MRSA. In pediatrics, wherein there is no recommended daptomycin dosing regimen for S. aureus bacteremia, ≥90% joint PTA is achieved when the MICs in the combination are up to 0.5 and 2 μg/mL for standard pediatric dosing regimens of 7 mg/kg q24h daptomycin and 12 mg/kg q8h ceftaroline fosamil. Model predicted tissue-to-plasma ratios of 0.3 and 0.7 in the skin and lung, respectively, for ceftaroline and 0.8 in the skin for daptomycin.

CONCLUSION: Our work illustrates how PBPK modeling can inform appropriate dosing of adult and pediatric patients and thereby enable prediction of target attainment in the patients during multi-therapies.

PMID:37005335 | DOI:10.1111/bcp.15731

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Safety of SGLT2 Inhibitors in Three Chronic Diseases

Int Heart J. 2023;64(2):246-251. doi: 10.1536/ihj.22-441.

ABSTRACT

This study aimed to assess the safety of SGLT2 inhibitors in type 2 diabetes, chronic kidney disease, and chronic heart failure considering the number needed to treat (NNT).Methods: Data were obtained from 10 morbidity-mortality trials and were pooled to calculate the NNTs. The number needed to treat to benefit (NNTB) is used to express beneficial outcomes, whereas the number needed to treat to be harmed (NNTH) is used for harmful outcomes. The eight safety outcomes of interest were fracture, diabetic ketoacidosis, amputation, urinary tract infection, genital infection, acute kidney injury, severe hypoglycemia, and volume depletion.A total of 10 trials involving 76319 patients were included in this meta-analysis. The mean follow-up was 2.35 years. SGLT2 inhibitors play a positive role in acute kidney injury and severe hypoglycemia, with the corresponding mean NNTBs being 157 and 561, respectively. SGLT2 inhibitors significantly increased the risk of diabetic ketoacidosis, genital infection, and volume depletion, with the corresponding mean NNTHs being 1014, 41, and 139. It was found that the safety of SGLT2 inhibitors was the same in three diseases and five SGLT2 inhibitors.SGLT2 inhibitors have a positive impact on acute kidney injury and severe hypoglycemia, but they increase the incidence of diabetic ketoacidosis, genital infection, and volume depletion.

PMID:37005318 | DOI:10.1536/ihj.22-441

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Nevin Manimala Statistics

Clinical Characteristics and Prognosis of Life-Threatening Acute Myocardial Infarction in Patients Transferred to an Emergency Medical Care Center

Int Heart J. 2023;64(2):164-171. doi: 10.1536/ihj.22-654.

ABSTRACT

Patients with acute myocardial infarction (AMI) triaged as life-threatening are transferred to our emergency medical care center (EMCC). However, data on these patients remain limited. We aimed to compare the characteristics and AMI prognosis of patients transferred to our EMCC with those transferred to our cardiovascular intensive care unit (CICU) using whole and propensity-matched cohorts.We analyzed the data of 256 consecutive AMI patients transferred from the scene to our hospital by ambulance between 2014 and 2017. The EMCC and CICU groups comprised 77 and 179 patients, respectively. There were no significant between-group age or sex differences. Patients in the EMCC group had more disease severity score and had the left main trunk identified as the culprit more frequently (12% versus 0.6%, P < 0.001) than those in the CICU group; however, the number of patients with multiple culprit vessels did not differ. The EMCC group had a longer door-to-reperfusion time (75 [60, 109] minutes versus 60 [40, 86] minutes, P< 0.001) and a higher in-hospital mortality (19% versus 4.5%, P < 0.001), especially from non-cardiac causes (10% versus 0.6%, P < 0.001), than the CICU group. However, peak myocardial creatine phosphokinase did not significantly differ between the groups. The EMCC group had a significantly higher 1-year post-discharge mortality than the CICU group (log-rank, P = 0.032); this trend was maintained after propensity score matching, although the difference was not statistically significant (log-rank, P = 0.094).AMI patients transferred to the EMCC exhibited more severe disease and worse overall in-hospital and non-cardiac mortality than those transferred to the CICU.

PMID:37005312 | DOI:10.1536/ihj.22-654

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Prognostic Factors for Distal Bile Duct Carcinoma After Surgery

Kurume Med J. 2023 Mar 31. doi: 10.2739/kurumemedj.MS682002. Online ahead of print.

ABSTRACT

BACKGROUND: Distal bile duct carcinoma continues to be one of the most difficult cancers to manage in terms of staging and radical resection. Pancreaticoduodenectomy (PD) with regional lymph node dissection has become the standard treatment of distal bile duct carcinoma. We evaluated treatment outcomes and histological factors in patients with distal bile duct carcinoma.

METHODS: Seventy-four cases of resection of carcinoma of the distal bile ducts treated at our department during the period from January 2002 and December 2016 using PD and regional lymph node dissection as the standard surgical procedure were investigated. Survival rates of factors were analyzed using uni- and multivariate analyses.

RESULTS: The median survival time was 47.8 months. On univariate analysis, age of 70 years or older, histologically pap, pPanc2,3, pN1, pEM0, v2,3, ly2,3, ne2,3 and postoperative adjuvant chemotherapy were statistically significant factors. On multivariate analysis, histologically pap was identified as a significant independent prognostic factor. The multivariate analysis identified age of 70 years or older, pEM0, ne2,3 and postoperative adjuvant chemotherapy as showing a significant trend towards independent prognostic relevance.

CONCLUSION: The good news about resected distal bile duct carcinoma is that the percentage of those who achieved R0 resection has risen to 89.1%. Our multivariate analysis identified age of 70 years or older, pEM0, ne2,3 and postoperative adjuvant chemotherapy as prognostic factors. In order to improve the outcome of treatment, it is necessary to improve preoperative diagnostic imaging of pancreatic invasion and lymph node metastasis, establish the optimal operation range and clarify whether aortic lymph node dissection is needed to control lymph node metastasis, and establish effective regimens of chemotherapy.

PMID:37005293 | DOI:10.2739/kurumemedj.MS682002

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Changes in Acidity Levels in the Gastric Tube After Esophagectomy for Esophageal Cancer

Kurume Med J. 2023 Mar 31. doi: 10.2739/kurumemedj.MS682005. Online ahead of print.

ABSTRACT

Reflux esophagitis and gastric tube ulcer sometimes cause severe clinical problems in patients undergoing esophagectomy with gastric tube reconstruction. We previously reported that acidity in the gastric tube was decreased for 1 year after esophagectomy, and that lower acidity levels were associated with Helicobacter pylori (H. pylori) infection. However, the long-term changes in gastric acidity remain unknown. We aimed to investigate the long-term changes in gastric acidity after surgery. Eighty-nine patients who underwent esophagectomy with gastric tube reconstruction for esophageal cancer were analyzed. They underwent 24-hour pH monitoring, serum gastrin measurement, and H. pylori infection examination before surgery, at 1 month, 1 year, and 2 years after surgery. The gastric acidity at 1 month and 1 year after surgery was significantly lower than that before surgery (p=0.003, p=0.003). However, there was no difference in gastric acidity before and 2 years after surgery. The gas tric acidity in H. pylori-infected patients was significantly lower in comparison to non-infected patients at each time point (p=0.0003, p<0.0001, p<0.0001, p<0.0001, respectively). In H. pylori-infected patients, gastric acid ity was decreased for 1 year after surgery, and recovered within 2 years after surgery. However, no significant differences were observed in the acidity levels of non-infected patients during the 2-year follow-up period. The serum gastrin level increased after esophagectomy. The acidity levels in the gastric tube recovered within 2 years after surgery. Periodic endoscopy examination is recommended for early detection of acid-related disease, such as reflux esophagitis or gastric tube ulcer, after esophagectomy with gastric tube reconstruction.

PMID:37005290 | DOI:10.2739/kurumemedj.MS682005

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Incidence of Acute Kidney Injury and Risk Factors of Prognosis in Patients with Acute Stanford Type A Aortic Dissection

Ann Thorac Cardiovasc Surg. 2023 Apr 1. doi: 10.5761/atcs.oa.22-00242. Online ahead of print.

ABSTRACT

PURPOSE: We aimed to investigate the prognosis and impact of postoperative acute kidney injury (AKI) in acute Stanford type A aortic dissection (ATAAD) patients, and to analyze the predictors of short- and medium-term survival.

METHODS: A total of 192 patients who underwent ATAAD surgery were included between May 2014 and May 2019. Perioperative data of these patients were analyzed. All of the discharged patients were followed up for 2 years.

RESULTS: Postoperative AKI was identified in 43 of 192 patients (22.4%). The two-year survival rate of patients with AKI after discharge was 88.2% and that without AKI was 97.2%.The difference was statistically significant (χ2 = 5.355, log-rank P = 0.021). Cox hazards regression showed that age (hazard ratio [HR], 1.070; P = 0.002), cardiopulmonary bypass (CPB) time (HR, 1.026; P = 0.026), postoperative AKI (HR, 3.681; P = 0.003), and red blood cell transfusion (HR, 1.548; P = 0.001) were independent risk factors for the short- and medium-term total mortality of ATAAD patients.

CONCLUSION: The incidence of postoperative AKI is high in ATAAD, and the mortality of patients with AKI increases significantly within 2 years. Age, CPB time, and red blood cell transfusion were also independent risk factors for short-and medium-term prognoses.

PMID:37005281 | DOI:10.5761/atcs.oa.22-00242