Publications by authors named "Dennis J Esterbrooks"

Background: The data evaluating the role of statins in delirium prevention in the intensive care unit are conflicting and limited.

Methods: We performed a systematic review and meta-analysis of literature from 1975 to 2015. All English-language adult studies evaluating delirium incidence in statin and statin nonusers were included and studies without a control group were excluded.

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Right-sided infective endocarditis (RIE) is commonly due to Staphylococcus aureus and often involves the tricuspid valve (TV). A 31-year-old man with prior intravenous drug use presented with substernal pain, cough, dyspnoea and fever. Examination revealed a febrile, tachycardic male with peripheral infective endocarditis stigmata and right-heart failure.

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Objectives: To evaluate the efficacy and long-term safety of transulnar approach in complex coronary interventions.

Background: The success rate of transulnar approach in complex coronary interventions and its long-term safety remains to be proven.

Methods: We conducted a retrospective chart review of patients undergoing transulnar coronary angiography and interventions at our institution from January 2004 through July 2009.

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Introduction: The PROSPECT trial reported no single echocardiographic measurement of dyssynchrony is recommended to improve patient selection for cardiac resynchronization therapy (CRT).

Material And Methods: In 100 consecutive patients who received CRT, we analyzed 27 ECG and echocardiographic variables to predict a positive response to CRT defined as a left ventricular (LV) end systolic volume decrease of ≥ 15% after CRT.

Results: Right ventricular (RV) pacing-induced left bundle branch block (LBBB), time difference between LV ejection measured by tissue Doppler and pulsed wave Doppler (T(TDI-PW)), and wall motion score index (WMSI) were significantly associated with positive CRT response by multivariate regression.

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Introduction: We hypothesized a relationship between severity of thoracic aortic atheroma (AA) and prevalence of high-risk coronary anatomy (HRCA).

Material And Methods: We investigated AA diagnosed by transesophageal echocardiography and HRCA diagnosed by coronary angiography in 187 patients. HRCA was defined as ≥ 50% stenosis of the left main coronary artery or significant 3-vessel coronary artery disease (≥ 70% narrowing).

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Coronary artery ectasia (CAE) is a well-recognized angiographic finding, characterized by abnormal dilatation of the coronary arteries. We reviewed the current concepts of the condition including etiology, pathogenesis, flow alterations, clinical implications, prognosis and treatment. CAE is often viewed as a variant of obstructive coronary atherosclerosis.

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Background: Perioperative myocardial infarction or cardiac arrest is associated with significant morbidity and mortality. The Revised Cardiac Risk Index is currently the most commonly used cardiac risk stratification tool; however, it has several limitations, one of which is its relatively low discriminative ability. The objective of the present study was to develop and validate a predictive cardiac risk calculator.

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We investigated in 136 consecutive patients with heart failure receiving cardiac resynchronization therapy (CRT) the effect of carvedilol versus metoprolol CR/XL versus no beta blocker on mortality. Of the 136 patients, 42 (31%) were on carvedilol, 80 (59%) were on metoprolol CR/XL, and 14 (10%) were not on a beta blocker. A decrease of left ventricular end-systolic volume ≥15% after CRT was defined as a positive response to CRT.

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Background: We hypothesized a patient selection score (PSS) may improve patient selection for cardiac resynchronization therapy (CRT).

Methods: Of 136 patients who received CRT, group A included 100 study patients and group B 36 patients for validation. A positive response to CRT was a left ventricular (LV) end-systolic volume decrease of ≥15% and survival from heart failure at end of follow-up.

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Background: There is conflicting data regarding the mortality benefit of statins in patients with heart failure. The objectives of our study were to determine whether statin therapy is associated with decreased all-cause mortality and to assess the effect of incremental duration of therapy.

Methods: We studied 10,510 consecutive patients from the Veterans Affairs health system with a diagnosis of heart failure from January 2002 through December 2006.

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Introduction: The combination of pulsed wave (PW) and tissue Doppler imaging (TDI) has been proposed as a new method to assess left ventricular (LV) mechanical dyssynchrony (LVMD), but results have not been validated. We investigated the correlation of a combination of PW and TDI with a positive response to cardiac resynchronization therapy (CRT).

Material And Methods: We studied 108 consecutive patients who received CRT.

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Unlabelled: Left atrial volume index (LAVI) as a predictor of mortality has not been well investigated in patients with cardiac resynchronization therapy (CRT). The purpose of this study is to evaluate the impact of LAVI in predicting mortality in CRT patients.

Methods: We studied 100 consecutive patients who received CRT (male 73, age 69.

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We studied 95 consecutive patients, mean age 70 years, who received cardiac resynchronization therapy (CRT) for class III or IV heart failure with a left ventricular (LV) ejection fraction < or =35% and a QRS duration > or =120 ms. Sixty-seven patients had intrinsic left bundle branch block (LBBB) (group 1), and 28 patients had right ventricular pacing-induced LBBB (group 2). The time difference (TPW-TDI) between onset of QRS to the end of LV ejection by pulsed wave Doppler and onset of QRS to the end of systolic wave in the basal segment with greatest delay by tissue Doppler imaging was measured before CRT and at the last follow-up after CRT.

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Background: The effect of mitral regurgitation (MR) on the incidence of new cerebrovascular accidents (CVA) and mortality in patients with atrial fibrillation (AF) and left atrial thrombus (LAT) is unknown.

Objective: To investigate the effect of MR in patients with AF and LAT on new CVA and mortality.

Methods: Eighty nine consecutive patients, mean age 71 years, with AF and LAT documented by transesophageal echocardiography were investigated to determine the prevalence and severity of MR and the association of the severity of MR with new cerebrovascular accidents (CVA) and mortality at 34-mo follow-up.

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Background: We hypothesized that segmental wall motion abnormalities (WMAs) are related to cardiac resynchronization therapy (CRT) response.

Methods: We studied 108 patients who received CRT, 69 with ischemic and 39 with nonischemic heart disease. A wall motion score index (WMSI) was analyzed using a 17-segment model and calculated by the total score/number of segments analyzed.

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We studied 99 consecutive patients with class III-IV systolic heart failure with a left ventricular ejection fraction (LVEF) < or =35% and a QRS duration <120 milliseconds. Patients with cardiac resynchronization therapy were excluded. Echocardiography was performed in all patients before and after optimal standard heart failure therapy.

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Two cases of superior vena cava syndrome induced by endocardial defibrillator and pacemaker leads are described. The 2 patients had histories of multiple endocardial leads and device upgrades and venous thrombosis. The first patient was treated with laser lead extraction followed by percutaneous venoplasty and stenting.

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The death certificate is an important medical document that impacts mortality statistics and health care policy. Resident physician accuracy in completing death certificates is poor. We assessed the impact of two educational interventions on the quality of death certificate completion by resident physicians.

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We describe the case of a 43-year-old woman with transient ischemic neurologic deficits and recurrent systemic and pulmonary emboli in whom infectious work-up and extensive thrombophilic evaluation were unremarkable. Transesophageal echocardiography (TEE) established the diagnosis of nonbacterial thrombotic endocarditis (NBTE). This is a rare condition often associated with hypercoagulable states or advanced malignancy such as adenocarcinomas, characterized by cardiac vegetations along valvular coaptation lines without destruction of leaflets.

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Stenting of the carotid artery is usually performed either to prevent an acute neurologic event or to treat episodes of recurrent transient ischemic attacks. Occasionally, it may be performed for other indications. We describe the case of a patient with prior coronary artery bypass grafting using a left internal mammary arterial graft, in addition to left carotid artery to left subclavian artery bypass for symptomatic left subclavian stenosis, who subsequently underwent left common carotid artery stenting to relieve anginal symptoms.

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