Critical Pathways in Cardiology最新文献

Background: Regarding adjustments to warfarin dosage, numerous studies have shown that computerized methods are superior to those based on personal experience.

Objectives: To report the efficacy of a computer-based warfarin management system (WMS) in the Iranian population.

Methods: By utilizing the existing dosing algorithms and obtaining expert opinions, we developed a computer-based WMS at a large tertiary cardiovascular center. The time in therapeutic range and the number of international normalized ratio (INR) tests of clinic patients were compared before and after the implementation of WMS.

Results: Overall, 803 patients with 5407 INR tests were included in the before phase and 679 patients with 4189 INR tests in the after phase. The mean time in therapeutic range was 57.3% before and 59% after WMS implementation [mean difference, 1.64; 95% confidence interval (CI), -1.12-4.40]. In the before phase, the mean number of INR tests was 6.7, which dropped to 6.1 tests in the after phase (mean difference, -0.61; 95% CI, -0.97 to -0.24). Only 54.5% of the warfarin dosing prescriptions were consistent with the dosing recommendations of the WMS, and adherence to the WMS was poorest in the highest INR target range.

Conclusions: For the first time in Iran, we demonstrated that a computerized system was as effective as a traditional experience-based method to monitor INR in VKA-anticoagulated patients. Furthermore, it could reduce both the number of INR tests and that of visits.

Introduction: Data on outcomes between unfractionated heparin and bivalirudin anticoagulation during percutaneous coronary intervention (PCI) in acute coronary syndromes (ACS) remains inconclusive. We aimed to systematically analyze PCI outcomes comparing unfractionated heparin and bivalirudin.

Methods: We systematically searched Ovid MEDLINE, Ovid Embase, Ovid Cochrane Database of Systematic Reviews, Scopus, and Web of Science from database inception in 1966 through January 2024 for studies evaluating PCI outcomes comparing unfractionated heparin and bivalirudin. Two investigators independently reviewed data. Conflicts were resolved through consensus. Random-effects meta-analyses were used.

Results: Ten prospective trials were identified that enrolled 42,253 individuals who presented with an acute coronary syndrome. Our analysis found that heparin when compared to bivalirudin was associated with an increased risk of trial-based definition of major bleeding (RR 1.68, 95% CI 1.29-2.20), non-access site complications (RR 4.6, 95% CI 1.75-12.09), TIMI major bleeding (RR 1.70, 95% CI 1.20-2.41), major bleeding risks (RR 1.87, 95% CI 1.49-2.36), cardiovascular disease death (RR 1.26, 95% CI 1.02-1.57), and thrombocytopenia (RR 1.67, 95% CI 1.07-2.62). There were no statistically significant differences between heparin and bivalirudin for all-cause mortality, MACE, stroke, reinfarction, target vessel revascularization, acute or stent thrombosis.

Conclusions: The present meta-analysis demonstrates bivalirudin reduces major bleeding when used for anticoagulation during PCI in patients with acute coronary syndromes and is not associated with an increased risk of stent thrombosis or MACE.

Background and objective: The HEART pathway serves as a tool for predicting major adverse cardiac events (MACE) among patients presenting with acute chest pain, aiding in early discharge of low-risk patients and reducing unnecessary cardiac investigations. This study aimed to evaluate physician-nurse reliability of the HEART pathway. Moreover investigates the efficacy of HEART pathway to predict 3-month MACE in patients with acute chest pain.

Method: We conducted a prospective study on 97 patients experiencing acute chest pain. A team of three professionals - a nurse, a cardiology resident, and a cardiology attending physician - performed risk stratification. We assessed inter-rater reliability among the raters as well as explored 3-month MACE outcomes.

Result: Excellent pairwise agreements were found between the raters. Overall agreement among raters was excellent, with an ICC of 0.84 (95% CI: 0.73 - 0.97). The HEART pathway score exhibited strong predictive power (AUC: 0.85) for 3-month MACE. At a cut-off score of 4, sensitivity, specificity, and negative predictive values were 87.5%, 58.9%, and 95.8%, respectively.

Conclusion: The HEART pathway score effectively predicts 3-month MACE in patients with acute non-traumatic chest pain. Moreover, the high agreement among the attending physician, the resident physician, and the nurse suggests that nurses could use this tool, potentially reducing the workload on physicians.

Introduction: Coronary perforation is one of the major complications of percutaneous coronary intervention (PCI). The goal of this study was to evaluate adverse outcomes and mortality in patients suffering from coronary perforation during PCI above the age of 30.

Methods: The National Inpatient Sample (NIS) database, years 2016-2020, was studied using ICD 10 codes. Patients suffering from perforation were compared to patients without perforation during PCI.

Results: PCI was performed in a weighted total of 10,059,269 patients. Coronary perforation occurred in 11,725 (0.12 %) of all PCI performed. The mortality rate of patients with perforations was very high in comparison to patients without perforations. (12.9% vs 2.5%, OR: 5.6, CI:5-6.3 p<0.001). Furthermore, patients with coronary perforations had much higher rates of urgent coronary bypass surgery, tamponade, cardiac arrest, and major cardiovascular outcomes. Mortality remained high and over 10% in the 5-year study period.

Conclusion: Using a large national inpatient database, all-cause inpatient mortality in patients with coronary perforation is very high (over 10%) with persistently high mortality rates over the years study suggesting that treatment of perforations needs further improvement.

Background: Use of high-sensitivity troponin (hs-cTn) might lead to an increase in hospital observation visits due to higher number of abnormal troponin levels.

Study objectives: To determine the impact of incorporating hs-cTn into a chest pain clinical decision protocol (CDP) on observation visits in a large academic health system.

Methods: This is a retrospective observational cohort study of all chest pain observation patients in four hospitals in an academic health system over 24 months. All hospitals used the Beckman Coulter Unicel Dxi instrument, and all shared the same emergency department (ED) chest pain protocol, which used the HEART pathway and serial troponins and directed ED dispositions to either an observation stay, ED discharge, or inpatient admission. Outcomes studied before and after introduction of a hs-cTn protocol included daily chest pain observation census, cost, observation hours, and inpatient admit rate. Census was reported as the daily chest pain observation census and as a proportion of all observation visits. Data was retrieved from a health system data warehouse and a cost accounting program.

Results: There were 6,712 chest pain observation visits over 24-months, with 4,087 visits before and 2,634 visits after the hs-cTn protocol implementation. Comparison groups were similar in terms of age, gender, and type of insurance. There were 10.59 (95% CI: 10.24 - 10.95) daily chest pain observation visits before and 7.66 (95% CI: 7.34 - 7.97) visits after implementation, with a 28% (95% CI: 35% - 20%) decrease in the total daily census. As a portion of all observation visits, there was a 22% drop in the proportion that were observed for chest pain. The daily number of chest pain patients requiring inpatient admission was unchanged. The daily total direct cost for chest pain observation decreased with an effective daily cost savings of $4,313 USD (95% CI: $1,534 - $6,998). The total daily number of chest pain observation bed hours also decreased by 41.5 hours (95% CI 13.4 - 96.4 hr).

Conclusion: Implementation of a hs-cTn chest pain protocol was associated with a significant decrease in the number and proportion of observation visits, a decrease in total daily cost and bed hours used, and no increase in inpatient admissions.

Background: Atrioventricular node (AVN) radiofrequency (RF) ablation is a highly effective treatment of atrial tachyarrhythmias that are resistant to other management modalities. To date, there is limited research that compares the properties of different RF ablation catheters. The current study aims to compare the effectiveness of several types of RF catheters in AVN ablation.

Methods: 66 patients, with a mean age of 73.27 years, underwent AVN RF ablation. The catheters used were categorized as: un-irrigated (UI), externally-irrigated (EI), and contact force-sensing with 10-20 grams of force. EI catheters were divided into two different settings: low-power long-duration (LPLD) (30W, 45°C, and 60 sec) and high-power short-duration (HPSD) (50W, 43°C, and 12 sec). We compared the success rate of the different RF catheters using logistic regression and lesion times using linear regression.

Results: The distribution of the types of catheters used is: UI in 48%, LPLD in 16%, and HPSD in 36% of patients. All ablation procedures were successful, with no immediate post-procedure complications. HPSD had a significantly shorter lesion time than UI catheters by 403.42 sec [-631.67, -175.17].

Conclusion: UI catheters, LPLD, and HPSD were equally safe and effective in ablation procedures. The HPSD catheter had a significantly shorter lesion time and, thus, overall decreased procedure time.

Background: Patients with heart failure (HF) often have multiple cardiovascular risk factors (CVRF) and comorbidities (CMB). We evaluated the impact of additive CMB and CVRF in HF prognosis.

Methods: We retrospectively analyzed ambulatory patients with systolic dysfunction between January 2012 and May 2018. Follow-up: until January 2021. Endpoint: all-cause death. CVRF analyzed: Arterial hypertension, Diabetes mellitus and smoking. CMB evaluated: coronary artery disease, non-coronary atherosclerotic disease, respiratory disease, dementia, anemia, chronic kidney disease, inflammatory/autoimmune disease, active cancer and atrial fibrillation. Classification according to the number of CVRF and/or CMB: < 2 and ≥ 2. The independent prognostic impact of CVRF/CMB burden was assessed with multivariate Cox-regression.

Results: Most patients had ≥ 2 CMB (67.9%). Regarding CVRF, 14.9% presented none, 40.2% had one and 32.1% had two. During a median 49-month follow-up, 419 (49.1%) patients died. Mortality was higher among patients with ≥2 CVRF (56.1 vs 43.4% in those with <2) and in those with ≥2 CMB (57.7 vs 31.0%). While patients with one CMB had similar mortality than those with none. Patients with ≥2 CMB had higher long-term mortality risk: HR=2.47 (95% CI: 1.95-3.14). In patients with ≥2CVRF: HR of dying = 1.39 (1.14- 1.70). When taken together there was a clear survival disadvantage for patients with ≥ 2 CVRF/CMB - adjusted HR: 2.20 (1.45-3.34).

Conclusion: The presence of only 2 CVRF/CMB more than doubles the patients´ risk of dying. CVRF and CMB should be assessed as part of routine patient management.

Among White rheumatoid arthritis (RA) cohorts, heart failure with preserved ejection fraction (HFpEF) is the most prevalent type of heart failure (HF). We aimed to assess the type of HF affecting Black RA patients. 64 patients with RA-HF were compared to age-, sex-, and race-matched RA patients without HF. Left ventricular ejection fraction (LVEF), wall motion abnormalities, left ventricle (LV) mass, and wall thickness were reviewed. 87.3% were Black, 84.4% were women, with a mean age of 69.6 ± 1.38 (± SEM) and BMI (kg/m 2) 29.6 ± 1.07. RA-HF patients had higher rates of hypertension (HTN), chronic kidney disease, and atrial fibrillation. 66.7% had ≥3 cardiovascular risk factors compared to RA patients without HF. 2D-echocardiograms of RA-HF revealed that 62.3% had LVEF ≥50%, 37% had diastolic dysfunction, and 43.1% had wall motion abnormalities. LV mass and relative wall thickness measurements indicated LV eccentric remodeling. The odds ratio for HF was 4.7 (1.5-14.53 CI), p<0.01, among RA-HTN group and 3.5 (1.091-11.7 CI) p<0.01 among smokers. In our predominantly Black RA-HF patients, HFpEF was the most common type of HF. HTN was associated with the highest OR for HF. Eccentric hypertrophic remodeling, a known poor prognostic indicator for cardiovascular events, was found. Further studies are required to confirm our findings.

Objective: To find out whether inclisiran sodium has different efficacy in heterozygous familial hypercholesterolemia (HeFH) and homozygous familial hypercholesterolemia (HoFH) patient groups.

Methods: We conducted the systematic review and meta-analysis of ORION clinical trials. PubMed, Embase, and Clinicaltrials.gov databases were searched for the relevant studies. Atheroscalerotic parameters considered for our objective were low-density lipoprotein cholesterol, total cholesterol, proprotein convertase subtilisin/kexin type 9 (PCSK9), apolipoprotein B, and nonhigh-density lipoprotein cholesterol. Primary outcomes were the percentage difference in atheroscalerotic parameters at follow-up relative to baseline values. Our study examined these primary outcomes to determine whether there is a statistically significant difference between the HeFH and HoFH groups. Risk of bias was assessed by the Cochrane risk of bias tool. Meta-analysis was performed when at least 2 studies reported on the same variable.

Results: Four ORION clinical trials provided the data related to the mean difference in the atheroscalerotic parameters at follow-up relative to baseline, of HeFH and HoFH patient populations, after administration of 300 mg inclisiran subcutaneously. We pooled together these mean differences for each group and applied a statistical test to analyze if the values were significantly different between the groups. The results of our study unveiled the significant difference in pooled mean differences in low-density lipoprotein cholesterol (HeFH: -48.62%; HoFH: -9.12%; P < 0.05), total cholesterol (HeFH: -30.31%; HoFH: -11.50%; P < 0.05), apolipoprotein (HeFH: -39.97%; HoFH: -14.68%; P < 0.05), and nonhigh-density lipoprotein (HeFH: -44.51%; HoFH: -12.22%; P < 0.05) between HeFH and HoFH groups. However, the difference in pooled mean difference in PCSK9 values (HeFH: -68.41%; HoFH: -56.25%; P = 0.2) between HeFH and HoFH groups was statistically insignificant. Studies were of high quality.

Conclusions: There was a significant difference in the reductions in atherosclerotic lipid parameters in heterozygous and homozygous populations after the administration of inclisiran except for PCSK9 parameter. Further studies are needed to support this conclusion.

The global prevalence of atrial fibrillation is rapidly increasing, in large part due to the aging of the population. Atrial fibrillation is known to increase the risk of thromboembolic stroke by 5 times, but it has been evident for decades that well-managed anticoagulation therapy can greatly attenuate this risk. Despite advances in pharmacology (such as the shift from vitamin K antagonists to direct oral anticoagulants) that have increased the safety and convenience of chronic oral anticoagulation in atrial fibrillation, a preponderance of recent observational data indicates that protection from stroke is poorly achieved on a population basis. This outcomes deficit is multifactorial in origin, stemming from a combination of underprescribing of anticoagulants (often as a result of bleeding concerns by prescribers), limitations of the drugs themselves (drug-drug interactions, bioaccumulation in renal insufficiency, short half-lives that result in lapses in therapeutic effect, etc), and suboptimal patient adherence that results from lack of understanding/education, polypharmacy, fear of bleeding, forgetfulness, and socioeconomic barriers, among other obstacles. Often this adherence is not reported to treating clinicians, further subverting efforts to optimize care. A multidisciplinary, interprofessional panel of clinicians met during the 2023 International Society of Thrombosis and Haemostasis Congress to discuss these gaps in therapy, how they can be more readily recognized, and the potential for factor XI-directed anticoagulants to improve the safety and efficacy of stroke prevention. A full appreciation of this potential requires a reevaluation of traditional teaching about the "coagulation cascade" and decoupling the processes that result in (physiologic) hemostasis and (pathologic) thrombosis. The panel discussion is summarized and presented here.