Abstract：
:Because of physiologic R-R interval variability and arrhythmia, frame-mode acquisition of gated images may produce erroneous left ventricular volume curves, particularly in the diastolic filling phase. Eighteen patients in sinus rhythm underwent gated imaging in which both frame-mode and list-mode acquisitions were used. The systolic portions of the volume curves were similar in both studies, and the ejection fractions correlated well (R = 0.97). "Dropout" of data in the late diastolic phase, noted in 15 patients in whom frame mode was used, was not present in list mode, in which the atrial kick was clearly delineated. In additional patients with various arrhythmias, separate volume curves were obtained with list mode for premature, post-premature, and sinus beats. In patients with atrial fibrillation, a prominent peak mid-range on the R-R histogram was selected, and a complete volume curve was obtained. It was concluded that list-mode acquisition provided improved volume curves, with particular applicability in arrhythmic patients.
journal_name
Tex Heart Inst Jjournal_title
Texas Heart Institute journalauthors
DePuey EG,Almasi JJ,Eisner RL,Murphy PH,Sonnemaker RE,Burdine JAsubject
Has Abstractpub_date
1984-09-01 00:00:00pages
268-74issue
3eissn
0730-2347issn
1526-6702journal_volume
11pub_type
杂志文章abstract：:The consequences of deep wound infections before, during, and after coronary artery bypass grafting have prompted research to clarify risk factors and explore preventive measures to keep infection rates at an irreducible minimum. An analysis of 42 studies in which investigators used multivariate logistic regression an...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章,评审
doi：
更新日期：2013-01-01 00:00:00
abstract：:Hemangiomas of the heart are extremely rare. The prognosis is quite variable, because this benign tumor may grow, involute, or stop growing; therefore, resection is usually the treatment of choice. In patients with tumors of the left atrium, percutaneous balloon mitral valvulotomy is generally contraindicated. Yet for...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2010-01-01 00:00:00
abstract：:Celiac artery aneurysms are rare and typically warrant surgical treatment. Atherosclerosis is their chief cause. Symptomatic patients usually present with abdominal pain. Surgical resection of celiac artery aneurysms is associated with low morbidity and mortality rates. We report the case of a patient whose 2.2-cm cel...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：10.14503/THIJ-16-5802
更新日期：2017-02-01 00:00:00
abstract：:Coronary artery fistulae that communicate with the left ventricle are quite rare; those accompanied by sinus-node dysfunction are even more unusual. We report 2 cases of congenital coronary-artery-to-left-ventricle fistula with sinus-node dysfunction. In each of these patients, fistulae arose from both left and right ...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:Mycotic aneurysm formation is a rare and potentially fatal sequela of bacteremia. We present the cases of 2 octogenarians who had surgically confirmed mycotic aneurysms that involved the ascending aorta, with contained rupture (pseudoaneurysm). Neither patient had evidence of valvular endocarditis. Patient 1, an 82-ye...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2012-01-01 00:00:00
abstract：:In the past, it has been assumed that some basic physiologic responses to altitude, exposure in coronary patients are comparable to those in normal young subjects. In fact there are similar changes in sympathetic activation, heart rate, and blood pressure early after ascent, with decrements in plasma volume, cardiac o...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章,评审
doi：
更新日期：1994-01-01 00:00:00
abstract：:The surface electrocardiogram can be simply described as the P, QRS, and T (and U) waves, together with PR and ST segments. However, it is actually the summation of the action potential from the sinoatrial node, the atria, the atrioventricular node, the His-Purkinje system, and the ventricles. Although the action pote...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章,评审
doi：
更新日期：1994-01-01 00:00:00
abstract：:Doxorubicin, an anthracycline antibiotic commonly used as a chemotherapeutic agent for breast cancer, is well known to cause cardiotoxicity. We report the case of an active, otherwise healthy 57-year-old breast cancer survivor who, 17 years after chemotherapy, presented with symptoms of overt heart failure. She had no...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2012-01-01 00:00:00
abstract：:We describe an operative technique used in 30 patients from 1982 to 1995, in which sinus venosus atrial septal defect with anomalous pulmonary venous connection is repaired through longitudinal incision confined to the vena cava. A single oval patch is folded like the wings of a butterfly: the posterior wing is used t...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：:The Edwards MIRA bileaflet mechanical prosthesis, a heart valve not yet available in the United States, is designed with a unique hinge mechanism, curved leaflets, and thin titanium housing. We performed this study to investigate its clinical performance and postoperative hemodynamic results. We implanted 58 Edwards M...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：:A 49-year-old patient, referred with a diagnosis of right atrial myxoma, was found at surgery to have extensive cardiac metastases from a previously undetected cutaneous melanoma. In reviewing the literature, we found 5 other patients with a clinical diagnosis of melanoma metastatic to the heart, all of whom had a pre...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:Surgically created arteriovenous fistulae (AVF) for hemodialysis can contribute to hemodynamic changes. We describe the cases of 2 male patients in whom new right ventricular enlargement developed after an AVF was created for hemodialysis. Patient 1 sustained high-output heart failure solely attributable to the AVF. A...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：10.14503/THIJ-15-5353
更新日期：2016-08-01 00:00:00
abstract：:Transmyocardial laser revascularization, a new surgical technique, is being tested in patients with chronic obstructive coronary artery disease that is refractory to conventional revascularization techniques and to maximal medical therapy. During the operation, which is performed on the beating heart through a left th...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:In our experience, single-stage open repair of descending thoracic or thoracoabdominal aortic aneurysms with concurrent aortic arch disease is technically feasible via a high left thoracotomy or a thoracolaparotomy. Distal aortic and antegrade brain perfusion, in combination with brain and spinal cord protection, seem...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2010-01-01 00:00:00
abstract：:Juxtarenal abdominal aortic aneurysms (AAAs) are difficult to treat because they often have little or no proximal aortic neck. Patients with this complex anatomy are not usually candidates for an endovascular aneurysm repair (EVAR). Chimney-graft EVAR has been introduced, but type Ia endoleak is a typical risk. We hav...
journal_title：Texas Heart Institute journal
pub_type：
doi：10.14503/THIJ-17-6520
更新日期：2019-06-01 00:00:00
abstract：:No data are available on the long-term outcome of coronary-coronary venous bypass grafting. We describe a case in which we successfully stented a discrete, critical stenosis of a coronary-coronary venous graft that had been placed 19 years earlier to minimize manipulation of a severely calcified ascending aorta. Coron...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：:Hearing atrial sounds is unusual during atrial flutter and rare during atrial fibrillation. We report a patient with hypertrophic cardiomyopathy and coarse atrial fibrillation in whom atrial sounds were recorded phonocardiographically during endocardial atrial electrography. The atrial sounds were recorded phonocardio...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:Malignant metastases to the heart and pericardium, which occur far more often than do primary cardiac neoplasms, typically lead to fatal outcomes. The phyllodes tumor is a rare, predominantly benign fibroepithelial breast neoplasm with variable malignancy potential. Herein, we describe the case of a 35-year-old woman ...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章,评审
doi：
更新日期：2011-01-01 00:00:00
abstract：:We studied the structural and functional heart adaptations of 52 male triathletes compared with those of 22 active, nonathletic men, by 2-dimensional Doppler echocardiography. Left ventricular diastolic function was evaluated by recording transmitral flow velocities. To exclude the influences of preload, left atrial p...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:Influenza causes cardiac and pulmonary complications that can lead to death. Its effect on the conduction system, first described a century ago, has long been thought to be fairly benign. We report 2 cases of high-grade atrioventricular block associated with acute influenza infection. Both patients-a 50-year-old woman...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：10.14503/THIJ-18-6658
更新日期：2020-06-01 00:00:00
abstract：:The levels of brain natriuretic peptide (BNP) and monocyte chemoattractant protein-1 (MCP-1) are known to be increased in the sera of subjects with heart failure. Existing models do not account for the biomass of thrombus that occurs in patients undergoing myocardial infarction. In this study, we compared the expressi...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2013-01-01 00:00:00
abstract：:The detection and correction of ventricular fibrillation at the earliest time after its onset is essential to ensure long-term survival. During successive cardiac arrests the rhythms occurring were sensed by using disposable pre-gelled ECG defibrillator pads placed in the anterior-anterior position. Simultaneously wit...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：1986-12-01 00:00:00
abstract：:Approximately 20% to 30% of patients who undergo coronary arteriography for the evaluation of chest pain are found to have normal coronary arteries. These patients have a survival rate comparable to that of the normal population, yet they continue to complain of symptoms on extended follow-up, and about half of this g...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章,评审
doi：
更新日期：1993-01-01 00:00:00
abstract：:Clostridium septicum infection is a rare cause of aortic dissection, and the mortality rate for the condition is high. Only 26 cases of C. septicum aortitis have been reported; all of those patients were elderly, and 20 of them had an associated colonic neoplasm. Herein, we present the case of a 22-year-old man whose ...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2009-01-01 00:00:00
abstract：:Herein, we present the case of a 22-year-old man who sustained a gunshot wound to a persistent sciatic artery. Endovascular stent management of the arterial injury obviated the need for surgical repair and revascularization in the presence of acute trauma. We believe this to be the 1st report of a completely endovascu...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章,评审
doi：
更新日期：2009-01-01 00:00:00
abstract：:Nonfunctional paragangliomas are slow-growing, typically benign tumors that arise from the extra-adrenal paraganglion of the autonomic nervous system. They are identified and characterized with the use of computed tomography and other imaging methods; for definitive diagnosis, histopathologic evaluation is crucial. Su...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：2013-01-01 00:00:00
abstract：:Thrombosis of a previously undiagnosed aneurysm of the abdominal aorta in a 64-year-old woman resulted in acute and severe ischemia in both legs. Prompt surgical resection of the aneurysm and restoration of aortic continuity with a fabric graft brought about complete resolution of her symptoms, with excellent function...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：1982-03-01 00:00:00
abstract：:This report describes an early diagnosis and successful correction of a disrupted "improved" Björk-Shiley prosthetic valve in the mitral position. The role of 2-Dimensional echocardiography in the diagnosis is emphasized. ...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：1985-03-01 00:00:00
abstract：:In spite of the efficacy of tricuspid annuloplasty, there remain occasional cases in which tricuspid valve replacement (TVR) is indicated. There is to date no late follow-up data on the Carpentier-Edwards porcine bioprosthesis (CEPB) in the tricuspid position. We present a series of twelve consecutive cases of TVR wit...
journal_title：Texas Heart Institute journal
pub_type： 杂志文章
doi：
更新日期：1982-09-01 00:00:00
abstract：:Congenital pericardial diverticula and cysts are extremely uncommon lesions within the anterior mediastinum. Both lesions derive from the pericardial celom and represent different stages of a common embryogenesis. Initial reports date from the 19th century. Surgical pioneers were Otto Pickhardt, who removed a pericard...
journal_title：Texas Heart Institute journal
pub_type： 历史文章,杂志文章,评审
doi：
更新日期：2012-01-01 00:00:00
