Patients with cirrhosis who have coronary artery disease treated with cardiac stents have high rates of gastrointestinal bleeding, but no increased mortality

Risk and management of cardiac disease in kidney and liver transplant recipients

Organ transplantation is the treatment of choice for individuals with kidney failure requiring kidney replacement therapy, as well as for those with end-stage liver disease. Despite the significant reduction in long-term morbidity and mortality with transplantation, kidney and liver allograft recipients remain at high risk for cardiovascular disease (CVD) and premature death from cardiovascular causes. This heightened risk is represented across all phenotypes of CVD, including coronary heart disease, heart failure, arrhythmias, valvulopathies and pulmonary hypertension. Pre-existing vascular risk factors for CVD, coupled with superimposed cardiovascular-kidney-metabolic derangements after transplantation, driven at least in part by post-transplant weight gain, immunosuppressive therapies and de novo risk factors such as dyslipidaemia and diabetes, coalesce to increase total CVD risk. In this review, we summarise pathophysiological considerations for both the short- and long-term increase in CVD risk following kidney/liver transplantation. We review the different phenotypes of CVD, with unique considerations for post-transplant care in this patient population. Finally, we highlight the need for awareness about long-term CVD risk and a multidisciplinary approach to managing organ-specific CVD risk in kidney and liver transplant patients.

Coronary Intervention Outcomes in Patients with Liver Cirrhosis

PURPOSE OF REVIEW

This review assesses the outcomes of coronary interventions in patients with liver cirrhosis and coronary artery disease (CAD), focusing on the clinical challenges posed by cirrhosis-related hemodynamic and coagulopathic changes. It highlights essential considerations for managing these patients, who have an increased risk of adverse events during coronary procedures.

RECENT FINDINGS

Recent studies have shown that patients with liver cirrhosis undergoing PCI experience significantly higher mortality rates compared to non-cirrhotic patients, particularly in the context of STEMI and NSTEMI. Coagulopathy and thrombocytopenia increase the risk of bleeding and vascular complications during interventions. Radial access has been suggested as a safer alternative to femoral access in these patients due to reduced bleeding complications. Additionally, contrast-induced nephropathy (CIN) is a prevalent risk, with cirrhotic patients demonstrating higher rates of acute kidney injury post-PCI. Preventive strategies such as minimizing contrast exposure and utilizing intravascular ultrasound (IVUS) are recommended. Managing CAD in cirrhotic patients requires careful consideration of their unique pathophysiological state. Higher in-hospital mortality, bleeding risks, and vascular complications necessitate tailored procedural strategies, such as radial access and contrast minimization. The balance between thrombotic and bleeding risks is critical in decision-making, with IVUS and hydration strategies being promising approaches. Further research is required to optimize treatment protocols and improve long-term outcomes for this high-risk population.

Management of the liver transplant candidate with high cardiac risk: Multidisciplinary best practices and recommendations

In a setting characterized by a growing prevalence of patients with alcohol-associated and metabolic dysfunction-associated steatotic liver diseases, coupled with an aging patient demographic, the incidence of cardiac comorbidities in liver transplant candidates is on the rise. These comorbidities not only pose barriers to transplant eligibility but also impact the intraoperative course and affect posttransplant outcomes. As such, there is a significant need to optimize the clinical management of these cardiac comorbidities. However, there is a scarcity of evidence regarding the best practices for managing cardiac comorbidities such as coronary and valvular heart diseases, arrhythmia, and cardiomyopathy in this population, both before and during transplant surgery. These conditions necessitate a coordinated and multidisciplinary approach to care. In this manuscript, we conduct a comprehensive review of the most recent evidence pertaining to the preoperative and intraoperative management of these cardiac comorbidities in liver transplant candidates. Our aim is to provide recommendations that improve and standardize their clinical care.

Depression among older adults who developed acute coronary syndrome (ACS) during hospitalization for non-cardiac illness: A prospective observational study

Background

Atypical presentations of ACS delay its recognition and treatment in the older adults. During hospitalization, depression and functional decline, which is unique to older adults, leads to poor clinical outcome. Steps taken for its prevention is unlikely to become a priority for the Cardiologist. This study was conducted to identify depression among older adults who developed ACS during hospitalization for noncardiac illness and their outcome.

Methods

310 older adults with ACS were included from 26 June 2020 to 13 October 2020. Subjects were divided into those admitted primarily due to an ACS (Group I, n = 94) and those developing ACS after admission for noncardiac illness (Group II, n = 216). Co morbidities, medications, investigations, management, clinical outcome, Geriatric Depression Scale was compared between the two groups at the time of admission, after 30 days and after 6 months.

Results

Majority of them were admitted due to acute kidney injury (27.1%) in group II and had a non ST elevation ACS (90.2%). Optimum management was given to a lesser extent because of the clinical condition of these patients. Depression during hospitalization, during follow up and poor clinical, functional and cognitive outcome was more in group II.

Conclusion

Optimum medical management was not given to considerable number of patients because of atypical presentations, clinical condition, along with functional and cognitive decline which resulted from depression. Clinicians must be vigilant for the development of depression when an older adult is admitted to the hospital, as early detection and optimum management provides better clinical outcome.

Optimizing cardiac status in the preliver transplant candidate

PURPOSE OF REVIEW

Liver transplant is a widely accepted therapy for end-stage liver disease. With advances in our understanding of transplant, candidates are increasingly older with more cardiac comorbidities. Cardiovascular disease also represents a leading cause of morbidity and mortality posttransplant.

RECENT FINDINGS

Preoperative cardiac risk stratification and treatment may improve short-term and long-term outcomes after liver transplant. Importantly, the appropriate frequency of surveillance has not been defined. Optimal timing of cardiac intervention in end-stage liver disease is likewise uncertain.

SUMMARY

The approach to risk stratification of cardiovascular disease in end-stage liver disease is outlined, incorporating the AHA/ACC scientific statement on evaluation of cardiac disease in transplant candidates and more recent expert consensus documents. Further study is needed to clarify the ideal timing and approach for cardiovascular interventions.

Using noninvasive clinical parameters to predict mortality and morbidity after cardiac interventions in patients with cirrhosis: A systematic review

BACKGROUND

Cardiovascular disease commonly affects advanced liver disease patients. They undergo cardiac interventions to improve cardiac outcomes. Cirrhosis increases complication risk, including bleeding, renal and respiratory failure, and further decompensation, including death, posing a clinical dilemma to proceduralists. Predicting outcomes is crucial in managing patients with cirrhosis. Our aim was to systematically review clinical parameters to assess the mortality and complication risk in patients with cirrhosis undergoing cardiac interventions.

METHODS

We searched cirrhosis and cardiovascular intervention terminology in PubMed and Excerpta Medica Database (EMBASE) from inception to January 8, 2023. We included studies reporting clinical scores (e.g. Model for End-stage Liver Disease (MELD), Child-Pugh-Turcotte (CPT), cardiovascular interventions, mortality, and morbidity outcomes). We independently abstracted data from eligible studies and performed qualitative summaries.

RESULTS

Eight studies met the inclusion criteria. Procedures included tricuspid valve surgery, catheterization-related procedures, aortic valve replacement (AVR), pericardiectomy, and left ventricular assist device (LVAD) placement. MELD primarily predicted mortality (n = 4), followed by CPT (n = 2). Mortality is significantly increased for MELD > 15 after tricuspid valve surgery. Albumin, creatinine, and MELD were significantly associated with increased mortality after transcatheter AVR (TAVR), although specific values lacked stratification. CPT was significantly associated with increased mortality after cardiac catheterization or pericardiectomy. In LVAD placement, increasing MELD increased the unadjusted odds for perioperative mortality.

CONCLUSIONS

Our systematic review showed that clinical parameters predict mortality and morbidity risk in patients with cirrhosis undergoing cardiac procedures.

Improving Management of Portal Hypertension: The Potential Benefit of Non-Etiological Therapies in Cirrhosis

Portal hypertension is the consequence of cirrhosis and results from increased sinusoidal vascular resistance and hepatic blood inflow. Etiological therapies represent the first intervention to prevent a significant increase in portal pressure due to chronic liver damage. However, other superimposed pathophysiological drivers may worsen liver disease, including inflammation, bacterial translocation, endothelial dysfunction, and hyperactivation of hemostasis. These mechanisms can be targeted by a specific class of drugs already used in clinical practice. Albumin, rifaximin, statins, aspirin, and anticoagulants have been tested in cirrhosis and were a topic of discussion in the last Baveno consensus as non-etiological therapies. Based on the pathogenesis of portal hypertension in cirrhosis, our review summarizes the main mechanisms targeted by these drugs as well as the clinical evidence that considers them a valid complementary option to manage patients with cirrhosis and portal hypertension.

Review article: the safety of anticoagulants and antiplatelet agents in patients with cirrhosis

Patients with cirrhosis were long thought to be coagulopathic. However, this paradigm has changed in recent years and currently, cirrhosis is recognised as a prothrombotic state. Due to the increasing incidence of cirrhosis from nonalcoholic steatohepatitis which is closely associated with cardiac disease, patients with cirrhosis increasingly require therapy with anticoagulants and antiplatelet agents. However, their potential for causing catastrophic and life-threatening bleeding in patients with cirrhosis leads to hesitancy about their use in patients with cirrhosis. Overall, traditional anticoagulation is safe for all Child-Pugh classes while newer direct oral anticoagulants (DOACs) are mostly safe in Child-Pugh class A/B and contraindicated in severe hepatic impairment. For different indications, published data to date suggest that anticoagulation is overall safe for patients with cirrhosis who have venous thromboembolism, atrial fibrillation and portal vein thrombosis, and does not increase the risk of variceal bleeding. Moreover, DOACs appear to have similar safety profiles as traditional anticoagulants. Finally, most studies suggest that antiplatelet agents are also safe to use in patients with cirrhosis although they are mostly contraindicated in severe hepatic impairment. For both anticoagulants and antiplatelet agents, severe thrombocytopaenia presents a relative contraindication to their use. More prospective trials and large cohort studies are needed to advance our understanding of the safety and nuances of DOACs and antiplatelet agents in patients with advanced cirrhosis.

Survival outcomes of patients with concomitant acute variceal bleeding and acute coronary syndrome, and the role of antiplatelet agents: an institutional experience from a lower middle-income Country

BACKGROUND

There is strong evidence demonstrating the incidence of Acute Coronary Syndrome (ACS) among patients with cirrhosis, with the initiation of antiplatelet therapy being subject to debate due to an increased risk of bleeding. This study aimed to determine mortality among patients presenting with concomitant Acute Variceal Bleeding (AVB) and ACS at Index admission. Furthermore, the recurrence of AVB and ACS among patients discharged with or without antiplatelet therapy was determined.

METHODS

This retrospective study was conducted at the Aga Khan University Hospital, Karachi, Pakistan on patients ≥ 18 years of age admitted to our ER with concomitant ACS and AVB between January 2002 to December 2017. Follow-up for 6 months or till death (if < 6 months), was observed, to help determine the incidence of recurrent AVB and ACS. The incidence of AVB and ACS was then compared amongst patient groups based on the usage of anti-platelet drugs on discharge.

RESULTS

A total of 29 patients were included, with a mean age of 58.7 ± 11.0 years. Seven patients died on admission, having worse underlying liver disease. No mortality was reported among the remaining 22 patients. All 22 patients underwent surveillance endoscopy with variceal band ligation until obliteration, as needed. Only 7 patients from the surviving cohort received antiplatelet therapy. After 6.05 ± 1.1 months of follow-up, 1/22 (4.5%) developed recurrent AVB and 2/22 (9.1%) developed cardiovascular events. Importantly, there was no significant difference in the incidence of recurrent AVB (P = 1.000) and ACS (P = 0.091), depending on the use of antiplatelet therapy.

CONCLUSION

Concomitant AVB and ACS is a severe disorder with increased mortality among cirrhotic patients at presentation. The incidence of AVB does not seem to exacerbate with the use of antiplatelet agents, provided successful obliteration of varices is achieved using elective band ligation.

Rational hemostatic management in cirrhosis: from old paradigms to new clinical challenges

INTRODUCTION

Patients with cirrhosis are at risk of both thrombotic and hemorrhagic events. Traditional hemostatic tests are inadequate to assess the complex and fragile balance of hemostasis in this setting, especially in advanced stages of disease such as decompensated cirrhosis or acute on chronic liver failure (ACLF). Furthermore, the indiscriminate use of pro-hemostatic agents for prophylaxis and treatment of bleeding episodes is still debated and often contraindicated. Alongside, splanchnic, and peripheral thrombotic events are frequent in this population and require management that involves a careful balance between risks and benefits of antithrombotic therapy.

AREAS COVERED

This review aims to address the state of the art on the clinical management of the hemostatic balance of cirrhosis in terms of established knowledge and future challenges.

EXPERT OPINION

The old paradigm of cirrhosis as a naturally anticoagulated condition has been challenged by more sophisticated global tests of hemostasis. Integrating this information in the clinical decision-making is still challenging for physicians and experts in hemostasis.

Emerging Evidence on Coronary Heart Disease Screening in Kidney and Liver Transplantation Candidates: A Scientific Statement From the American Heart Association: Endorsed by the American Society of Transplantation

Coronary heart disease is an important source of mortality and morbidity among kidney transplantation and liver transplantation candidates and recipients and is driven by traditional and nontraditional risk factors related to end-stage organ disease. In this scientific statement, we review evidence from the past decade related to coronary heart disease screening and management for kidney and liver transplantation candidates. Coronary heart disease screening in asymptomatic kidney and liver transplantation candidates has not been demonstrated to improve outcomes but is common in practice. Risk stratification algorithms based on the presence or absence of clinical risk factors and physical performance have been proposed, but a high proportion of candidates still meet criteria for screening tests. We suggest new approaches to pretransplantation evaluation grounded on the presence or absence of known coronary heart disease and cardiac symptoms and emphasize multidisciplinary engagement, including involvement of a dedicated cardiologist. Noninvasive functional screening methods such as stress echocardiography and myocardial perfusion scintigraphy have limited accuracy, and newer noninvasive modalities, especially cardiac computed tomography-based tests, are promising alternatives. Emerging evidence such as results of the 2020 International Study of Comparative Health Effectiveness With Medical and Invasive Approaches-Chronic Kidney Disease trial emphasizes the vital importance of guideline-directed medical therapy in managing diagnosed coronary heart disease and further questions the value of revascularization among asymptomatic kidney transplantation candidates. Optimizing strategies to disseminate and implement best practices for medical management in the broader end-stage organ disease population should be prioritized to improve cardiovascular outcomes in these populations.

Ischemic Heart Disease and Liver Cirrhosis: Adding Insult to Injury

The link between heart and liver cirrhosis was recognized decades ago, although much data regarding atherosclerosis and ischemic heart disease are still missing. Ischemic heart disease or coronary artery disease (CAD) and liver cirrhosis could be associated with characteristic epidemiological and pathophysiological features. This connection determines increased rates of morbidity and all-cause mortality in patients with liver cirrhosis. In the era of a metabolic syndrome and non-alcoholic fatty liver disease pandemic, primary prevention and early diagnosis of coronary artery disease could improve the prognosis of liver cirrhosis patients. This review outlines a summary of the literature regarding prevalence, risk assessment and medical and interventional treatment options in this particular population. A collaborative heart-liver team-based approach is imperative for critical management decisions for patients with CAD and liver cirrhosis.

Exposure to Proton Pump Inhibitors and the Risk of Incident Asthma in Patients with Coronary Artery Diseases: A Population-Based Cohort Study

We aimed to determine the association between proton pump inhibitor (PPI) use and incident asthma in patients with coronary artery disease (CAD). This nationwide cohort study collected claims data from the Taiwanese Bureau of National Health Insurance from 2004 to 2013. The primary outcome, i.e., the risk of incident asthma, was assessed by estimating hazard ratios (HRs) and 95% confidence intervals (CIs). The adjusted HR of asthma development was estimated using the Cox regression model. Sensitivity and subgroup analyses were also conducted. A total of 8894 PPI users and 12,684 H2-receptor antagonist (H2RA) users were included in patients with CAD. Compared with H2RA use, an increased risk of incident asthma was found between PPI use and the risk of incident asthma in patients with CAD after adjusting for sex, age, urbanization, and low income (HR: 1.41; 95% CI: 1.04-1.89). The sensitivity analysis results were consistent with the main analysis results. However, the subgroup analysis revealed no association of incident asthma in patients with diabetes mellitus, hyperlipidemia, stroke, allergic rhinitis, pneumonia, cancer, or depression in the PPI group compared with those in the H2RA group. In conclusion, PPI use increased the risk of asthma development in patients with CAD.

Antiplatelet drugs and liver fibrosis

Liver fibrosis results from an imbalance between extracellular matrix formation and degradation. The background of liver fibrosis is chronic inflammation and subsequent microcirculation disturbance including microthrombosis. Platelets actively participate in liver fibrosis not only as a part of the clotting system but also by releasing granules containing important mediators. In fact, platelets may play a dual role in the pathophysiology of liver fibrosis as they are able to stimulate regeneration as well as aggravate the destruction of the liver. Recent studies revealed that antiplatelet therapy correlates with inhibition of liver fibrosis. However, liver impairment is associated with extensive coagulation disorders thus the safety of antiplatelet therapy is an area for detailed exploration. In this review, the role of platelets in liver fibrosis and accompanying hemostatic disorders are discussed. Additionally, results of animal and human studies on antiplatelet drugs in liver disorders and their potential therapeutic utility are presented.

Management of Acute Coronary Syndrome in Patients with Liver Cirrhosis

Liver cirrhosis (LC) is becoming increasingly common among patients presenting with acute coronary syndromes (ACS) and is associated with significant cardiovascular morbidity and mortality. Management of such patients is complicated by LC related complications. Literature is scarce on the safety of antithrombotic regimens and invasive strategies for ACS in patients with LC, especially those undergoing liver transplant evaluation. Recently there has been evidence that cirrhosis is an independent risk factor for adverse outcomes in ACS. As patients with LC are generally excluded from large randomized trials, definitive guidelines for the management of ACS in this particular cohort are lacking. Many antithrombotic drugs require either hepatic activation or clearance; hence, an accurate assessment of hepatic function is required prior to initiation and dose adjustment. Despite a demonstrated survival benefit of optimal medical therapy and invasive revascularization techniques in LC patients with ACS, both strategies are currently underutilized in this population. This review aims to present currently available data and provide a practical, clinically oriented approach for the management of ACS in LC. Randomized clinical trials in LC patients with ACS are the need of the hour to further refine their management for favorable outcomes.

Safety and efficacy of dual antiplatelet therapy after percutaneous coronary interventions in patients with end-stage liver disease

The prevalence of coronary artery disease (CAD) increases in patients with end-stage liver disease, with part of them receiving the percutaneous coronary intervention (PCI) as a treatment option. Dual antiplatelet therapy (DAPT), a standard of care after PCI, could result in catastrophic consequences in this population. Before PCI and the start of DAPT, it is recommended to assess patient bleeding risk. Based on novel findings, liver cirrhosis does not necessarily lead to a significant increase in bleeding complications. Furthermore, conventional methods, such as the international normalized ratio, might not be appropriate in assessing individual bleeding risk. The highest bleeding risk among cirrhotic patients has a subgroup with severe thrombocytopenia (< 50 × 109/L) and elevated portal pressure. Therefore, every effort should be made to maintain thrombocyte count above > 50 × 109/L and prevent variceal bleeding. There is no solid evidence for DAPT in patients with cirrhosis. However, randomized trials investigating short (one month) DAPT duration after PCI with new drug-eluting stents (DES) in a high bleeding risk patient population can be implemented in patients with cirrhosis. Based on retrospective studies (with older stents and protocols), PCI and DAPT appear to be safe but with a higher risk of bleeding complications with longer DAPT usage. Finally, novel methods in assessing CAD severity should be performed to avoid unnecessary PCI and potential risks associated with DAPT. When indicated, PCI should be performed over radial artery using contemporary DES. Complementary medical therapy, such as proton pump inhibitors and beta-blockers, should be prescribed for lower bleeding risk patients. Novel approaches, such as thromboelastography and "preventive" upper endoscopies in PCI circumstances, warn clinical confirmation.

From Coronaries to Cirrhosis: The Role of Percutaneous Coronary Intervention and Dual Antiplatelet Therapy in End-Stage Liver Disease

Drug-eluting stents (DES) have superior efficacy compared with bare metal stents (BMS) for treatment of coronary artery lesions. However, BMS continue to play an important role in percutaneous coronary intervention for patients who are at a high bleeding risk, because they require a shorter duration of dual antiplatelet therapy. However, new developments in DES and understanding of the optimal time required for dual antiplatelet therapy after percutaneous coronary intervention may further limit the use of BMS. Furthermore, the use of dual antiplatelet therapy is complicated in patients with cirrhosis, who may have coagulopathy. In this article, we present the case of a patient with cirrhosis and end-stage chronic liver disease with coronary artery disease and a proximal left anterior descending stenosis who received a DES and had multiple episodes of gastrointestinal bleeding. We review the literature addressing DES and BMS in patients at high risk of bleeding. We also review the optimal duration of dual antiplatelet therapy.

In-Hospital Outcomes of Patients with Acute Decompensated Heart Failure and Cirrhosis: An Analysis of the National Inpatient Sample

INTRODUCTION

Heart failure increases morbidity and mortality in patients admitted for cirrhosis. Our objective was to determine if patients with acute decompensated heart failure (ADHF) and cirrhosis would have increased mortality, hospital length of stay (LOS), and total hospital charges compared to patients with only ADHF. There is also a paucity of data regarding the influence of gender, race, ethnicity, insurance, and cirrhosis-related complications on mortality, hospital length of stay, and total hospitalization charges. In this study, we aim to identify risk factors in a national population cohort from 2016.

METHODS

All patients above 18 years old with cirrhosis and ADHF admitted in 2016 were identified from the Nationwide Inpatient Sample (NIS). Multivariate regression analysis was used to estimate the odds ratio of in-hospital mortality, average length of stay (LOS), and total hospital charges after adjusting for the following factors: age, gender, race, Charlson and Elixhauser scores, primary insurance payer status, hospital type, hospital bed size, hospital region, and hospital teaching status. Statistical analysis was performed by using the survey procedures function in the statistical analysis system (SAS) software. Statistical significance was defined by the two-sided t-test with a p value < 0.05.

RESULTS

The overall sample contained 363,050 patients. A total of 355,455 patients were admitted with ADHF and 2% of these patients had concomitant cirrhosis (n = 7595) in 2016. The total mortality rate was 3.4%, hospital LOS was 6.6 days (with a median of 6.5 days), and the mean total hospital charge was $63,120.20. Patients with both ADHF and cirrhosis compared to patients without ADHF had increased mortality, hospital LOS, and cirrhosis-related complications.

CONCLUSIONS

As the incidence and prevalence of ADHF and cirrhosis increases worldwide, we urge the medical community to increase surveillance of patients with both diseases and perform rigorous cardiovascular risk assessments as well to improve patient outcomes.

Selection for Liver Transplantation: Indications and Evaluation

Purpose of Review

Liver transplantation is an important therapeutic option for patients with life-limiting liver disease, which may present in the form of acute liver failure, end-stage chronic liver disease, primary hepatic cancers, or inborn metabolic disorders. While significant strides have been made with respect to liver transplantation outcomes, the practice is constrained by an organ supply/demand mismatch. The purpose of this review, therefore, is to review the general indications and contraindication to liver transplantation, and to provide an overview of the transplant evaluation process. These considerations ultimately shape the specific criteria for patient selection, which will continue to evolve as means are developed to expand the donor pool, improve surgical techniques, broaden indications for safe transplant, and extend the lifetime of a graft.

Recent Findings

Selected patients with unresectable hilar cholangiocarcinoma may be candidates for liver transplantation. Patients over 65 years may be transplant candidates if they possess a favorable comorbidity profile. Patients at body mass index extremes (≥ 40 or < 18.5) have increased post-transplant mortality and require nutritional evaluation.

Summary

Liver transplantation may be life saving for patients with acute liver failure or end-stage liver disease. It is therefore critical for healthcare providers caring for patients with liver disease to be familiar with the general indications for transplantation and to know when it is appropriate or inappropriate to refer for transplant evaluation.

Impact Of Cirrhosis On 90-Day Outcomes After Percutaneous Coronary Intervention (from A Nationwide Database)

Patients with cirrhosis often have concomitant coronary artery disease and require percutaneous coronary intervention (PCI). PCI in cirrhotics can be associated with significant risks due to thrombocytopenia, possible coagulopathies, bleeding, and renal failure. Longer term risks of PCI in cirrhotics have not been well studied. Our study seeks to evaluate the 90-day outcomes of PCI in patients with cirrhosis. Patients receiving PCI were identified from the Nationwide Readmissions Database from 2010 to 2014 and stratified by the presence of co-morbid cirrhosis. The total mortality during index admission and 90-day readmissions as well as the readmissions rate were examined. Adverse events including bleeding, stroke, kidney injury, and vascular complications were also compared. Patients with cirrhosis had a significantly higher number of co-morbidities. The cirrhosis group had a higher overall 90-day mortality (10.3% vs 2.5%, p < 0.01), including during the index hospitalization (7.0% vs 1.8%, p < 0.01), as well as a higher 90-day readmission rate (38.2% vs 20.2%, p < 0.01). Patients with cirrhosis also had higher frequencies of overall 90-day adverse events (44.7% vs 17.7%, p < 0.01), including gastrointestinal bleeding (15.3% vs 2.7%, p < 0.01) and acute kidney injury (28.4% vs 10.1%, p < 0.01). In conclusion, patients with cirrhosis face a significantly higher risk of adverse outcomes including mortality, readmissions, and adverse events in the 90 days after hospitalization for PCI compared with the general population.

Dual anti-platelet therapy following percutaneous coronary intervention in a population of patients with thrombocytopenia at baseline: a meta-analysis

Background

In this meta-analysis, we aimed to systematically compare the post percutaneous coronary interventional (PCI) adverse bleeding events, stent thrombosis, stroke and other cardiovascular outcomes in a population of patients with and without thrombocytopenia at baseline who were followed up on dual antiplatelet therapy (DAPT).

Methods

Relevant English language articles which were published before June 2019 were retrieved from MEDLINE, http://www.ClinicalTrials.com, EMBASE, Cochrane central, and Google scholar briefly using specific terms such as percutaneous coronary intervention or dual antiplatelet therapy, and thrombocytopenia. All the participants were followed up on DAPT following discharge. Specific endpoints including bleeding events, stent thrombosis, stroke and other adverse cardiovascular events were assessed. The latest version of the RevMan software was used for the statistical assessment. Odd ratios (OR) with 95% confidence intervals (CI) based on a fixed or a random statistical model were used to represent the data graphically.

Results

A total number of 118,945 participants (from 8 studies) were included with 37,753 suffering from thrombocytopenia at baseline. Our results showed post procedural bleeding (OR: 1.89, 95% CI: 1.16–3.07; P = 0.01), access site bleeding (OR: 1.66, 95% CI: 1.15–2.39; P = 0.006), intra-cranial bleeding (OR: 1.78, 95% CI: 1.30–2.43; P = 0.0003), gastro-intestinal bleeding (OR: 1.44, 95% CI: 1.14–1.82; P = 0.002) and any major bleeding (OR: 1.67, 95% CI: 1.42–1.97; P = 0.00001) to be significantly higher in thrombocytopenic patients treated with DAPT after PCI. Total stroke (OR: 1.45, 95% CI: 1.18–1.78; P = 0.0004) specifically hemorrhagic stroke (OR: 1.67, 95% CI: 1.30–2.14; P = 0.0001) was also significantly higher in these patients with thrombocytopenia at baseline. All-cause mortality and major adverse cardiac events were also significantly higher. However, overall total stent thrombosis (OR: 1.18, 95% CI: 0.90–1.55; P = 0.24) including definite and probable stent thrombosis were not significantly different compared to the control group.

Conclusions

According to the results of this analysis, DAPT might have to be cautiously be used following PCI in a population of patients with thrombocytopenia at baseline due to the significantly higher bleeding rate including gastro-intestinal, intra-cranial bleeding and hemorrhagic stroke. Hence, special care might have to be taken when considering anti-platelet agents following PCI in these high risk patients. However, considering the present limitations of this analysis, this hypothesis will have to be confirmed in future trials.

Dual antiplatelet therapy in patients with cirrhosis and acute myocardial infarction - A 13-year nationwide cohort study

BACKGROUND

Patients with cirrhosis and acute myocardial infarction (AMI) present dilemma whether dual antiplatelet therapy (DAPT) should be used.

METHODS

Electronic medical records between 2001-2013 were retrieved from Taiwan National Health Insurance Research Database. Patients were excluded for missing information, age <20 years old, history of AMI, liver transplant, autoimmune disease, coagulopathy, taking DAPT 3 months before index date, follow-up <3 months, anticoagulation user, without DAPT, and events of myocardial infarction (MI), ischemic stroke, major bleeding, and heart failure within 3-month of enrollment. Primary outcomes were 1-year all-cause mortality, recurrent MI, major bleeding, and gastrointestinal bleeding.

RESULTS

A total of 150,887 patients with AMI retrieved. After exclusion criteria and propensity score-matching, 914 cirrhotic and 3,656 non-cirrhotic patients with AMI on DAPT were studied. During 1-year follow-up, there was significantly increased mortality in cirrhotic patients compared to non-cirrhotic patients (HR = 1.49, 95% CI = 1.28-1.74). There was significantly decreased recurrent MI in cirrhotic patients compared to non-cirrhotic patients (subdistribution HR [SHR] = 0.71, 95% CI = 0.54-0.92). However, non-significantly increased major bleeding (SHR = 1.23, 95% CI = 0.87-1.73) and significantly increased gastrointestinal bleeding (SHR = 1.49, 95% CI = 1.31-1.70).

CONCLUSIONS

In cirrhotic patients with AMI, DAPT offers benefit with decreased recurrent MI at the expense of increased gastrointestinal bleeding.

Defining high bleeding risk in patients undergoing percutaneous coronary intervention: a consensus document from the Academic Research Consortium for High Bleeding Risk

Identification and management of patients at high bleeding risk undergoing percutaneous coronary intervention are of major importance, but a lack of standardization in defining this population limits trial design, data interpretation, and clinical decision-making. The Academic Research Consortium for High Bleeding Risk (ARC-HBR) is a collaboration among leading research organizations, regulatory authorities, and physician-scientists from the United States, Asia, and Europe focusing on percutaneous coronary intervention-related bleeding. Two meetings of the 31-member consortium were held in Washington, DC, in April 2018 and in Paris, France, in October 2018. These meetings were organized by the Cardiovascular European Research Center on behalf of the ARC-HBR group and included representatives of the US Food and Drug Administration and the Japanese Pharmaceuticals and Medical Devices Agency, as well as observers from the pharmaceutical and medical device industries. A consensus definition of patients at high bleeding risk was developed that was based on review of the available evidence. The definition is intended to provide consistency in defining this population for clinical trials and to complement clinical decision-making and regulatory review. The proposed ARC-HBR consensus document represents the first pragmatic approach to a consistent definition of high bleeding risk in clinical trials evaluating the safety and effectiveness of devices and drug regimens for patients undergoing percutaneous coronary intervention.

Defining High Bleeding Risk in Patients Undergoing Percutaneous Coronary Intervention

Identification and management of patients at high bleeding risk undergoing percutaneous coronary intervention are of major importance, but a lack of standardization in defining this population limits trial design, data interpretation, and clinical decision-making. The Academic Research Consortium for High Bleeding Risk (ARC-HBR) is a collaboration among leading research organizations, regulatory authorities, and physician-scientists from the United States, Asia, and Europe focusing on percutaneous coronary intervention-related bleeding. Two meetings of the 31-member consortium were held in Washington, DC, in April 2018 and in Paris, France, in October 2018. These meetings were organized by the Cardiovascular European Research Center on behalf of the ARC-HBR group and included representatives of the US Food and Drug Administration and the Japanese Pharmaceuticals and Medical Devices Agency, as well as observers from the pharmaceutical and medical device industries. A consensus definition of patients at high bleeding risk was developed that was based on review of the available evidence. The definition is intended to provide consistency in defining this population for clinical trials and to complement clinical decision-making and regulatory review. The proposed ARC-HBR consensus document represents the first pragmatic approach to a consistent definition of high bleeding risk in clinical trials evaluating the safety and effectiveness of devices and drug regimens for patients undergoing percutaneous coronary intervention.

Anticoagulation Therapy in Patients with Liver Cirrhosis is Associated With an Increased Risk of Variceal Hemorrhage

OBJECTIVE

The belief that cirrhotic patients are "auto-anticoagulated" often results in anticoagulation therapy being withheld in these patients. We aimed to understand patterns of use of anticoagulation and to determine the risk of bleeding complications in cirrhotic patients.

METHODS

We retrospectively analyzed 320 cirrhotic patients treated with anticoagulation therapy from July 15, 2014 to January 30, 2018. We performed bivariate and multivariate analyses to identify risk factors for clinically relevant bleeding. We conducted a separate analysis using propensity score matching to compare bleeding rates of a noncirrhotic cohort group on anticoagulation to anticoagulated patients with cirrhosis.

RESULTS

Nonalcoholic steatohepatitis (47%) was the most common cause of cirrhosis, and 49% were classified as Child-Pugh class B, a mean model for end-stage liver disease score of 14 and Charlson comorbidity index of 7. Anticoagulation was initiated for atrial fibrillation/atrial flutter in 56% of patients; warfarin was used in 57% of patients and concomitant use of antiplatelet therapy in 25%. Bleeding occurred in 18%, with upper gastrointestinal bleeding (53%) being the most common source. In the propensity-matched cohort, bleeding rates were higher in cirrhotics than in control patients who were matched for baseline characteristics. In multivariate analysis of the cirrhotic patients, the presence of esophageal varices was associated with higher odds of clinically relevant bleeding.

CONCLUSION

Anticoagulated cirrhotic patients who have esophageal varices are at an increased risk of bleeding. We recommend that patients with cirrhosis and esophageal varices who require anticoagulation have their varices managed carefully prior to initiation of anticoagulation.

Pretransplant coronary artery disease is a predictor for myocardial infarction and cardiac death after liver transplantation

BACKGROUND

Cardiovascular disease is a serious problem of liver transplant (LT) recipients because of increased cardiovascular risk due to immunosuppressive therapy, higher age, intraoperative risk and comorbidities (such as diabetes and nicotine abuse). Reported frequency of cardiovascular events after LT shows a high variability between different LT cohorts. Our aim was to analyze a cohort of LT recipients from a single center in Germany to evaluate frequency of the cardiovascular endpoints (CVE) myocardial infarction and/or cardiac death after LT and to investigate correlations of CVE post LT with pretransplant patient characteristics.

PATIENTS

In total, data from 352 LT patients were analyzed. Patients were identified from an administrative transplant database, and all data were retrieved from patients' charts and reports.

RESULTS

During the median follow-up of 4.0 (0-13) years, 10 cases of CVE were documented (six myocardial infarctions and four coronary deaths). The frequency of CVE did not differ according to classic cardiovascular risk factors such as body mass index (p=0.071), total cholesterol (p=0.533), hypertension (p=0.747), smoking (p=1.000) and pretransplant diabetes mellitus (p=0.146). In patients with pretransplant coronary heart disease (n=24; 6.8%) CVE were found more frequently (p=0.024).

CONCLUSION

In summary, we found a rate of 2.8% CVE after LT in a German transplant cohort. Pretransplant CHD was the only risk factor for CVE, but showed no significant impact on overall survival.