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31.
Y.Wady Aude MD Antonio Rosado MD Paul Vignola MD Donald Williams MD Joseph Kreeger RDCS Harry Aldrich MD 《Journal of the American Society of Echocardiography》1999,12(12):1104-1106
Congenital coronary arteriovenous fistulas are rare anomalies. Patients may present with congestive heart failure, ischemic chest pain, or endocarditis. In this case, transesophageal echocardiography provided valuable additional information to that obtained from cardiac catheterization, which was essential for the diagnosis and planning of surgical correction. 相似文献
32.
Quality of life with ablation or medical therapy for ventricular arrhythmias: A substudy of VANISH
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Lorne J. Gula MD MSc Steve Doucette PhD Peter Leong‐Sit MD MSc Anthony S.L. Tang MD Ratika Parkash MD MSc Jean‐Francois Sarrazin MD Bernard Thibault MD Vidal Essebag MD PhD Stanley K. Tung MD Marc W. Deyell MD MSc Jean‐Marc Raymond MD Chris Lane MD Pablo B. Nery MD George D. Veenhuyzen MD Damian P. Redfearn MD Jeffrey S. Healey MD Jean‐Francois Roux MD Karen Giddens RDMS RDCS John L. Sapp MD 《Journal of cardiovascular electrophysiology》2018,29(3):421-434
33.
Comparison of valvar and right ventricular function following transcatheter and surgical pulmonary valve replacement
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Wendy F. Li BS Heidi Pollard RDCS Mohsen Karimi MD Jeremy D. Asnes MD William E. Hellenbrand MD Veronika Shabanova PhD Constance G. Weismann MD 《Congenital heart disease》2018,13(1):140-146
Objective
Trans‐catheter (TC) pulmonary valve replacement (PVR) has become common practice for patients with right ventricular outflow tract obstruction (RVOTO) and/or pulmonic insufficiency (PI). Our aim was to compare PVR and right ventricular (RV) function of patients who received TC vs surgical PVR.Design
Retrospective review of echocardiograms obtained at three time points: before, immediately after PVR, and most recent.Patients
Sixty‐two patients (median age 19 years, median follow‐up 25 months) following TC (N = 32) or surgical (N = 30) PVR at Yale‐New Haven Hospital were included.Outcome Measures
Pulmonary valve and right ventricular function before, immediately after, and most recently after PVR.Results
At baseline, the TC group had predominant RVOTO (74% vs 10%, P < .001), and moderate‐severe PI was less common (61% vs 100%, P < .001). Immediate post‐procedural PVR function was good throughout. At last follow‐up, the TC group had preserved valve function, but the surgical group did not (moderate RVOTO: 6% vs 41%, P < .001; >mild PI: 0% vs 24%, P = .003). Patients younger than 17 years at surgical PVR had the highest risk of developing PVR dysfunction, while PVR function in follow‐up was similar in adults. Looking at RV size and function, both groups had a decline in RV size following PVR. However, while RV function remained stable in the TC group, there was a transient postoperative decline in the surgical group.Conclusions
TC PVR in patients age <17 years is associated with better PVR function in follow‐up compared to surgical valves. There was a transient decline in RV function following surgical but not TC PVR. TC PVR should therefore be the first choice in children who are considered for PVR, whenever possible. 相似文献34.
Preoperative echocardiographic measures in interrupted aortic arch: Which ones best predict surgical approach and outcome?
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35.
Mertens L Seri I Marek J Arlettaz R Barker P McNamara P Moon-Grady AJ Coon PD Noori S Simpson J Lai WW;Writing Group of the American Society of Echocardiography;European Association of Echocardiography;Association for European Pediatric Cardiologists 《Journal of the American Society of Echocardiography》2011,24(10):1057-1078
36.
Marek Belohlavek MD PhD Panupong Jiamsripong MD Anna M. Calleja MD Eileen M. McMahon PhD Chera L. Maarouf BS Tyler A. Kokjohn PhD Teresa L. Chaffin RDCS Linda J. Vedders MT CCRC Zsolt Garami MD Thomas G. Beach MD PhD Marwan N. Sabbagh MD Alex E. Roher MD PhD 《Journal of ultrasound in medicine》2009,28(11):1493-1500
Objective. There is considerable epidemiologic evidence that Alzheimer disease (AD) is linked to cardiovascular risk factors and associated with an increased risk of symptomatic left ventricular (LV) dysfunction. Formation of a vortex alongside a diastolic jet signifies an efficient blood transport mechanism. The vortex formation time (VFT) is an index of optimal conditions for vortex formation. We hypothesized that AD and its associated cardiovascular risk factors impair diastolic transmitral flow efficiency and, therefore, shift the VFT value out of its optimal range. Methods. Echocardiographic studies were performed on 45 participants in total: 22 patients with AD diagnosed according to the American Psychiatric Association's criteria and 23 age‐matched individuals as a control group with cognitive function within normal limits. Results. The echocardiographic ratio of the early to atrial phases of the LV filling velocities was significantly lower in the AD group (mean ± SD, 0.67 ± 14) when compared with the control individuals (0.79 ± 0.14; P = .003). The interventricular septum diastolic thickness, left ventricular posterior wall diastolic thickness, and right ventricular end‐diastolic diameter were significantly higher in the AD group (P ≤ 0.04). The mitral annular diameters in the control and AD groups were nearly identical (P = .725). The time‐velocity integral of the E wave had a lower value in the AD group than in the control group (P = .05), whereas the VFT was significantly lower in the AD group (P = .018). Conclusions. Our study suggests that patients with AD have impaired transmitral flow efficiency of diastolic filling, as measured by the VFT, compared with age‐matched control individuals. 相似文献
37.
Tomás F. Cianciulli MD FACC María C. Saccheri MD Osvaldo H. Masoli MD FACC Marcela F. Redruello MD Jorge A. Lax MD Luis A. Morita MD Juan A. Gagliardi MD Adriana N. Dorelle RDCS Horacio A. Prezioso MD Luis A. Vidal MD 《Journal of nuclear cardiology》2009,16(3):391-395
Background Apical hypertrophy cardiomyopathy (ACM) is a rare condition characterized by asymmetric myocardial hypertrophy of the apex
of the left ventricle. When two-dimensional echocardiography is limited by a poor acoustic window, patients are often referred
for MRI. Our hypothesis is that a cheaper and more widely available diagnostic modality like myocardial perfusion single photon
emission computed tomography (SPECT) may be helpful in the diagnosis of ACM.
Objective The purpose of this prospective study was to define the characteristics of rest and stress SPECT studies in patients with
known ACM, and whether SPECT may be helpful in the diagnosis of ACM.
Methods Adult patients with ACM were enrolled in the study. Diagnosis was made with 2-D echo. A rest and exercise or dipyridamole
stress SPECT study was performed in all patients with Tc-99m sestamibi.
Results We enrolled 20 patients (mean age 60 ± 16 years), 9 were female, with ACM. SPECT at rest revealed in 15 patients (75%) an
increased apical tracer uptake, a spade-like deformity of the left ventricular chamber, and the “Solar Polar” map pattern
consistent with ACM. The sensitivity, specificity, positive predictive value, and negative predictive value of SPECT for detecting
ACM were 75%, 100%, 100%, and 80%, respectively.
Conclusion Three-fourths of adult patients with ACM showed, on myocardial perfusion SPECT, characteristic findings which were not seen
in age-matched control subjects, such as a significant increased apical tracer uptake, a spade-like deformity of the left
ventricle, and the “Solar Polar” map. Nuclear physicians should be aware of these SPECT findings because many ACM patients
may first end up in the nuclear labs due to their markedly abnormal ECG for exclusion of obstructive coronary artery disease.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users.
T. F. Cianciulli, M. C. Saccheri, and O. H. Masoli are researchers of the Secretary of Health, Government of the City of Buenos
Aires. 相似文献
38.
In Vitro, Animal, and Human Characterization of OPTISON Infusions for Myocardial Contrast Echocardiography 总被引:1,自引:0,他引:1
Jeffrey J. Miller BS Klaus Tiemann MD Sheila Podell PhD Julie K. Doerr Stevens PhD Teri Kuvelas RDCS Yigal Greener PhD Anne L. Killam PhD Jon Goenechea MS Howard C. Dittrich MD Harald Becher MD 《Journal of the American Society of Echocardiography》1999,12(12):1027-1034
Traditionally, performing myocardial contrast echocardiography with OPTISON required maximal bolus dosing. However, sustained and consistent opacification of the myocardium would be preferable for perfusion imaging. METHODS: Images of 5 anesthetized dogs and 6 human volunteers were obtained with a second harmonic ultrasound system during bolus administration of OPTISON and 2 infusion techniques. One infusion technique used diluted OPTISON, and the other used the buoyant properties of OPTISON microspheres by placing the contrast agent between an infusion source and the intravenous site in a vertically oriented extension line (ELT). Myocardial intensities and in vitro microsphere characteristics were analyzed to assess the consistency of microsphere delivery over time. RESULTS: In addition to providing higher myocardial opacification intensity than diluted infusions, ELT infusions provided consistent microsphere concentration, phantom enhancement, and near-peak bolus-level myocardial opacification for 7 to 15 minutes. The myocardial intensity at 3 and 5 minutes in human subjects during ELT infusions (30 mL/h; 2.5 mL) was lower (220 arbitrary units [au] and 165 au, respectively) but not significantly different (P =.3 and.1, respectively) than the peak myocardial intensity (265 au) after bolus administration. CONCLUSION: This new ELT infusion method provides an acceptable alternative to bolus administration of OPTISON for prolonged myocardial opacification. 相似文献
39.
B. Daniel Lucas Jr. Pharm.D. Mark A. Williams Ph.D. Syed M. Mohiuddin M.D. Lance J. LaMadrid RDCS RCVT Lisa J. Schroeder M.A. Daniel E. Hilleman Pharm.D. 《Pharmacotherapy》1998,18(4):824-830
Study Objective . To evaluate the effect of cimetidine, famotidine, ranitidine, and placebo on left ventricular systolic function, aerobic metabolic performance, and exercise capacity in patients with chronic, stable heart failure. Design . Double-blind, randomized, placebo-controlled, four-way crossover study. Setting . Outpatient, university-affiliated cardiology clinic. Patients . Twelve men with stable New York Heart Association class II or III heart failure secondary to ischemic heart disease or hypertension. Interventions . Patients received in random sequence cimetidine 400 mg twice/day, famotidine 40 mg/day, ranitidine 150 mg twice/day, and placebo. Each treatment was administered for 7 days, and the periods were separated by a 1-week washout. Measurements and Main Results . Before and after each treatment, patients underwent a bicycle stress echocardiogram with aerobic metabolic assessment. Left ventricular function was evaluated by calculating ejection phase indexes from Doppler echocardiographic measurements. All 12 patients successfully completed the study. No patient reported any adverse effect attributed to study drugs. None of the treatments was associated with significant changes in any measure of left ventricular systolic function, aerobic metabolic performance, or exercise capacity, nor were placebo-subtracted differences for the agents significantly different for any of the three measures. 相似文献
40.
Intrinsic changes of left ventricular function in patients with Behçet disease and comparison according to systemic disease activity
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Byung Joo Sun MD PhD Jae‐Hyeong Park MD PhD Su‐Jin Yoo MD Yunseon Park RDCS Yeon Ju Kim RDCS In Suk Lee RDCS Jinhyun Kim MD PhD In Seol Yoo MD Seung Cheol Shim MD PhD Seong Wook Kang MD PhD Jun‐Hyung Kim MD PhD Jae‐Hwan Lee MD PhD Si Wan Choi MD PhD Jin‐Ok Jeong MD PhD In‐Whan Seong MD PhD 《Echocardiography (Mount Kisco, N.Y.)》2018,35(6):809-816