Publications by authors named "Le Dung Ha"

Objective: To identify patients undergoing complex, high-risk indicated percutaneous coronary intervention (CHIP-PCI) and compare their outcomes with non-CHIP patients. We created a CHIP score to risk stratify these patients.

Background: Risk stratification of PCI patients remains difficult because most scoring systems reflect hemodynamic instability and predict early mortality.

View Article and Find Full Text PDF

Background: Coronary artery calcium (CAC) is an indicator of atherosclerosis, and the CAC score is a useful noninvasive assessment of coronary artery disease.

Objective: To compare the risk of cardiovascular outcomes in patients with CAC > 0 versus CAC = 0 in asymptomatic and symptomatic population in patients without an established diagnosis of coronary artery disease.

Methods: A systematic search of electronic databases was conducted until January 2018 for any cohort study reporting cardiovascular events in patients with CAC > 0 compared with absence of CAC.

View Article and Find Full Text PDF

Objective: Because the International left atrial enlargement electrocardiographic (ECG) screening criteria (ECG-LAE) for athletes are rarely fulfilled in young athletes, we compared it with evidence-based criteria from a recent clinical outcome study of ECG left atrial abnormality (ECG-LAA).

Design: Retrospective analyses.

Setting: Routine preparticipation ECG screening in California.

View Article and Find Full Text PDF

Introduction: Previous studies have reported lower rates of coronary angiography and revascularization, and significantly higher mortality among patients infected with human immunodeficiency virus (HIV) presenting with acute myocardial infarction (AMI). This observational study was designed to evaluate characteristics and inpatient outcomes of patients with seropositive HIV infection presenting with AMI.

Methods: Using the National Inpatient Sample (NIS) database, we identified patients (admissions) with a primary diagnosis of myocardial infarction and a co-occurring HIV.

View Article and Find Full Text PDF

Several randomized trials have demonstrated the benefits of an invasive strategy for older patients with acute coronary syndromes (ACS); however, there are limited real-world data of the temporal trends in the use of percutaneous coronary intervention (PCI) in this population. This was a retrospective observational analysis. We queried the National Inpatient Sample database from 1998 to 2013 for patients aged ≥70 years who had non-ST-elevation acute coronary syndrome (NSTE-ACS) or ST-elevation myocardial infarction (STEMI).

View Article and Find Full Text PDF

Atrial fibrillation (AF) can present with non-ST-segment elevation myocardial infarction (NSTEMI). The incidence, characteristics, outcomes, and treatment of this subgroup of patients with AF remains poorly studied. Using data from the National Inpatient Sample database, we (1) compared baseline characteristics of patients with AF with/without NSTEMI, (2) evaluated their outcomes and associated trends over the study period (2004-2013), and (3) evaluated revascularization (by percutaneous coronary intervention or coronary artery bypass graft [CABG]) and the impact on patient outcomes.

View Article and Find Full Text PDF

Objective: Clinical utilization of electrocardiography for diagnosis of left atrial abnormalities is hampered by variable P-wave morphologies, multiple empiric criteria, and lack of an imaging "gold standard". Our aim was to determine the prevalence of P-wave patterns and demonstrate which components have associations with cardiovascular death (CVD).

Methods: This is a retrospective analysis of 20,827 veterans <56 years of age who underwent electrocardiograms at a Veteran's Affairs Medical Center from 1987 to 1999, followed for a median duration of 17.

View Article and Find Full Text PDF

Background: Studies have reported sex differences in the management of patients with acute myocardial infarction (AMI) in the general population. This observational study is designed to evaluate whether sex differences exist in the contemporary management of human immunodeficiency virus (HIV) patients admitted for diagnosis of AMI.

Hypothesis: There is no difference in management of HIV patients with AMI.

View Article and Find Full Text PDF

Introduction: This study compared inpatient outcomes related to the use of these two devices among patients who developed cardiogenic shock not due to acute myocardial infarction or coronary revascularization.

Methods: We extracted admission-level records of patients with a diagnosis of cardiogenic shock who underwent either PVAD or IABP implantation from the National Inpatient Sample (NIS) database from 2010 to 2014. Our outcomes of interest were mortality and length of stay.

View Article and Find Full Text PDF

Background: The utility of endomyocardial biopsy (EMB) in the management of myocarditis in the era of advanced cardiac imaging has been challenged.

Methods And Results: The Nationwide Inpatient Sample Database (years 1998-2013) was queried to identify hospitalization records with a primary diagnosis of myocarditis, and underwent EMB procedure. We identified 22,299 hospitalization records with a diagnosis of myocarditis during the study period.

View Article and Find Full Text PDF

Background: Various electrocardiographic abnormalities, including atrioventricular conduction block, have been reported in patients with myocarditis. We performed an observation study to describe the characteristics and outcomes of inpatients diagnosed with myocarditis complicated by heart block (HB) in a large national cohort.

Methods: We identified patients with primary ICD-9 codes for myocarditis HB from the Nationwide Inpatient Sample (NIS) Database from 1998 to 2013.

View Article and Find Full Text PDF

Limited data are available regarding the impact of cancer on cerebrovascular accidents in patients with atrial fibrillation (AF). We queried the Nationwide Inpatient Survey Database to identify patients who have diagnostic code for AF. We performed a 1:1 propensity matching based on the CHADSVASc score and other risk factors between patients with AF who had lung, breast, colon, and esophageal cancer, and those who did not (control).

View Article and Find Full Text PDF

The efficacy and safety of glycoprotein IIb/IIIa inhibitors via intracoronary (IC) route versus the intravenous (IV) route are not well known. We conducted this meta-analysis of randomized trials evaluating the role of IC versus IV glycoprotein IIb/IIIa in patients undergoing primary percutaneous coronary intervention. The analysis included 14 trials with a total of 3,754 patients.

View Article and Find Full Text PDF

Background: Numerous methods have been proposed for diagnosing left ventricular hypertrophy using the electrocardiogram. They have limited sensitivity for recognizing pathological hypertrophy, at least in part due to their inability to distinguish pathological from physiological hypertrophy. Our objective is to compare the major electrocardiogram-left ventricular hypertrophy criteria using cardiovascular mortality as a surrogate for pathological hypertrophy.

View Article and Find Full Text PDF

Left atrial appendage (LAA) exclusion is performed by some surgeons in patients with atrial fibrillation (AF) who undergo coronary artery bypass grafting (CABG). However, the available evidence regarding the efficacy and safety of this procedure remains mixed. We queried the Nationwide Inpatient Survey Database for the 10-year period from 2004 to 2013.

View Article and Find Full Text PDF

Background: Although coronary artery bypass graft surgery (CABG) has been proven to have mortality and morbidity benefits in patients with non-ST elevation myocardial infarction and multivessel disease, the appropriate timing of this procedure remains unclear. Therefore, we proposed a propensity score-matched analysis comparing the clinical outcomes between patients who underwent CABG within the first 48 h of admission (early CABG) and patients who underwent CABG after 48 h of admission (delayed CABG).

Patients And Methods: Using the largest inpatient care database in the USA, the Nationwide Inpatient Sample, we identified patients with a primary diagnosis of acute myocardial infarction using the ICD 9-DM diagnosis codes.

View Article and Find Full Text PDF

BACKGROUND Guillain-Barré syndrome (GBS) is an acute inflammatory demyelinating polyneuropathy that is usually associated with preceding respiratory or gastrointestinal infection and has the hallmark manifestation of ascending flaccid paralysis. We report an atypical presentation of GBS. CASE REPORT A 76-year-old male presented with acute onset of diaphoresis and altered mental status.

View Article and Find Full Text PDF

Ischemia/reperfusion injury adversely affects the final infarct size (IS) after primary percutaneous coronary intervention (PCI) in patients with ST-segment elevation myocardial infarction (STEMI). Few studies have evaluated the role of remote ischemic conditioning (RIC) in reducing ischemia/reperfusion injury. However, the results of these studies were not consistent, and an overview of overall effectiveness of this technique in patients with STEMI is lacking.

View Article and Find Full Text PDF

Introduction: The role of intracoronary (IC) eptifibatide in primary percutaneous coronary intervention (PPCI) for ST segment elevation myocardial infarction (STEMI) and whether time of patient presentation affects this role are unclear. We sought to evaluate the benefit of IC eptifibatide use during primary PCI in early STEMI presenters compared to late STEMI presenters.

Methods: We included 70 patients who presented with STEMI and were eligible for PPCI.

View Article and Find Full Text PDF

Background: The frequency of simultaneous liver kidney transplantation (SLKT) has been increasing over the past decade. Hepatitis C virus (HCV) infection is the most common indication for liver transplantation in the United States. Given the rising prevalence of HCV-related SLKT, it is important to understand the impact of HCV in this patient population.

View Article and Find Full Text PDF

A 55-year-old gentleman with a medical history of hypertension presented to emergency department with sudden onset of central abdominal pain and left flank pain. A CT KUB (kidney, ureter and bladder) was performed to assess the patient for a possible renal calculus and other potential gastrointestinal causes. However, an extensive aortic dissection from the arch of the aorta to the iliac arteries was detected.

View Article and Find Full Text PDF