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Results 501 - 550 of 843
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Longatti P L - - 1994
The availability of telemetric devices for intracranial pressure (ICP) measurements in line with a multipurpose valve (MPV) was shown to be the ideal condition for safe investigation of the problem of shunt independence in 21 patients. After percutaneous closure of the shunt, all but 4 patients developed some degree of ...
Jauss M - - 1994
BACKGROUND: Patent foramen ovale as a possible stroke risk factor can be diagnosed with transcranial Doppler sonography (TCD) by detecting intravenous contrast medium crossing from the right to the left atrium. The present study evaluates the reliability of this method. SUMMARY OF REPORT: We performed TCD and transesophageal echocardiography simultaneously ...
Ventureyra E C - - 1994
Ventriculoperitoneal shunt malfunction is most commonly caused by obstruction of the ventricular catheter by choroid plexus. Such ventricular catheter obstructions remain a major unsolved problem, despite improvements in materials, catheter design, new valves, and increased emphasis on precise techniques favoring optimal catheter placement. Shunt malfunction demands elective and often urgent ...
Schwarz G - - 1994
A persisting foramen ovale (PFO) is the most common cause of paradoxical air embolism. To detect right-to-left shunting, transthoracic contrast echocardiography was performed preoperatively in 301 patients scheduled for neurosurgical procedures in the sitting position. Echocardiography yielded evaluable results in 285 patients (94.7%). In 72 of 285 patients (25.2%), a ...
Hanna J P - - 1994
BACKGROUND AND PURPOSE: Paradoxical embolism through a patent foramen ovale is a recognized cause of stroke, but clinical predictors, recurrence rate, and prevention of brain infarcts in patients with patent foramen ovale have not been determined. We reviewed transesophageal echocardiographic records to ascertain echocardiographic predictors and optimal prophylaxis for patent ...
Hochman J S - - 1994
Left ventricular aneurysm has been associated with increased mortality rates. The Cardiac Arrhythmia Suppression Trial (CAST) database was used prospectively to assess (1) the prognostic significance of left ventricular (LV) aneurysm after myocardial infarction on mortality rates and (2) the relation of LV aneurysm to ventricular arrhythmias and their suppressibility. ...
Graffigna A - - 1994
Three patients underwent surgical ablation for ventricular tachycardia resulting from an aneurysm of the membranous portion of the ventricular septum. Two patients had a definite history of cardiac murmur during infancy, and one of them was found at the time of operation to have a left-to-right shunt through the apex ...
Hascoët J M - - 1994
Despite the use of exogenous surfactants, the incidence of bronchopulmonary dysplasia (BPD) has not decreased as much as expected. Of 208 newborns involved in trials with Exosurf at our center, 51 had BPD. Among these newborns, 8 were found retrospectively to have secondary worsening of respiratory distress syndrome after initial ...
Esakof D D - - 1994
The diagnosis and precise delineation of a pseudoaneurysm of the left ventricle have important implications regarding surgical planning and operative repair. A 68-year-old man was admitted to the hospital with the incidental finding of a large pseudoaneurysm of the left ventricle 6 months after a St. Jude mitral valve replacement ...
Setz U - - 1994
Membranoproliferative glomerulonephritis was observed in a 22-year-old male patient in whom a ventriculoatrial shunt and a ventricular catheter were implanted after he was diagnosed in September 1989 with a cerebral cyst. Propionibacterium acnes infection of a central nervous system shunt was diagnosed. The ventriculoatrial shunt was removed (the catheter had ...
Davila D F - - 1994
Left ventricular apical aneurysms are present in Chagasic patients who have normal cardiac parasympathetic innervation. Cardiac parasympathetic abnormalities are found, in later stages of the disease, when diffuse myocardial damage and ventricular dilatation are already present. The apical region of the left ventricle is also affected in several acute and ...
Steinbok P - - 1994
Ventricular asymmetry is common after ventricular shunting, and occasionally isolation of the contralateral ventricle necessitates a second shunt. The following study was performed to determine whether contralateral placement of the ventricular catheter via ultrasound-guided perforation of the septum pellucidum would decrease the incidence of postshunting ventricular asymmetry which might predispose ...
Saitoh H - - 1994
Surgical treatment of a right atrial myxoma with a right-to-left shunt and coronary artery disease was successfully performed in a 61-year-old man. The interatrial shunt occurred through a patent foramen ovale and was the result of a high central venous pressure due to tricuspid stenosis and regurgitation. Instead of right ...
Samani N J - - 1994
We assessed all patients (n = 120) who underwent left ventricular aneurysmectomy as part of a cardiac surgical procedure at the Groby Road Hospital subregional cardiothoracic centre (1980-1990). Of these, 71% had had only one prior myocardial infarction and 84% had symptoms generally associated with aneurysms (congestive cardiac failure, ventricular ...
Gin K G - - 1993
OBJECTIVES: We postulated that femoral vein delivery of contrast medium because of streaming, might enhance precordial echocardiographic detection of patent foramen ovale. BACKGROUND: Although precordial contrast echocardiography is widely used to diagnose patent foramen ovale, this method is limited by poor sensitivity. Previous investigators have demonstrated enhanced detection of atrial ...
Tomai F - - 1993
A 61-yr-old woman was referred to our hospital for evaluation of a suspected right atrial myxoma. The transesophageal echocardiogram suggested the presence of an anomalous right coronary artery with fistulous connection to the coronary sinus. At cardiac catheterization, an oxygen step-up in the right atrium indicated a 1.3:1.0 left-to-right shunt. ...
Agarwal R - - 1993
Femoral artery pseudoaneurysm formation is a significant problem in patients undergoing cardiac catheterization and interventional cardiac procedures. It is especially more common with the use of anticoagulant and antiplatelet therapy and the use of intracoronary stents. We describe our initial experience with clinically guided bedside compression of femoral pseudoaneurysms in ...
Reimers C - - 1993
Radionuclide ventriculography is an accepted method for diagnosing left ventricular aneurysms, but false-negative studies have been associated with a mural thrombus filling the left ventricular cavity. We describe a patient with a left ventricular aneurysm due to myocardial infarction whose aneurysm scintigraphically "disappeared" from serial radionuclide ventriculograms. This was documented ...
Baker W B - - 1993
Left ventricular pseudoaneurysm formation after mitral valve replacement, although infrequent, is a serious complication with potential catastrophic results. We describe a case of an anterobasal pseudoaneurysm compressing all branches of the left coronary artery, which was missed by initial transthoracic echocardiography and was well characterized with the transesophageal approach. Although ...
Iafrati M D - - 1993
Maintenance of cardiovascular stability during thoracoabdominal aneurysm repair remains a formidable challenge. Transesophageal echocardiography (TEE) has been shown to be an excellent method for detecting myocardial ischemia and assessing left ventricular volume. We examined the utility of TEE in a group of 17 patients from an overall series of 33 ...
Inoue T - - 1993
To determine the factors of left ventricular aneurysm formation in acute myocardial infarction, the authors studied the distribution of coronary artery lesions and the left ventricular wall motion of 43 patients with anterior myocardial infarction. Of 15 patients with aneurysm, 9 (60%) showed a single-vessel disease with severe stenosis of ...
Monsuez J J - - 1993
A thirty-eight-year-old man with primary thrombocythemia, von Recklinghausen neurofibromatosis, and myocardial-infarction-related left ventricular aneurysm with spontaneous echocardiographic contrast was followed up, suggesting that: 1. Neurofibromatosis may promote silent myocardial infarction or ischemia. Whether involvement of cardiac sensory nerves is a possible underlying mechanism remains nevertheless uncertain. 2. Platelets, whose role ...
Badano L - - 1993
We describe a case of a large apical left ventricular thrombus evolving towards canalization and showing echocardiographic features mimicking a left ventricular pseudoaneurysm. Only serial echocardiographic studies allowed an appreciation of the changing morphologic features of the apical structure, permitting differential diagnosis between a canalization of an evolving thrombus and ...
Shaukat N - - 1993
Although Kawasaki disease is generally self-limiting, 15-25% of children with Kawasaki disease may develop significant cardiovascular sequelae, presentation may occur acutely or late (death has been reported up to 14 years after the acute illness). The most common late complication is the persistence of coronary artery aneurysms, these may produce ...
Tan E C - - 1993
A 10-year-old boy presented with acute obstructive hydrocephalus caused by the impaction of a calculus on the cerebral aqueduct. The calculus migrated from the third ventricle to the fourth ventricle after ventricular drainage and right ventriculoperitoneal shunt placement had been performed. The nature and origin of the calculus could not ...
Chiu C H - - 1993
A 14-year-old girl was admitted due to exertional dyspnea of one month's duration. A grade 3/6 holosystolic murmur with distant heart sounds was heard at the left sternal border. Chest roentgenograms and echocardiograms showed a large amount of pericardial and left pleural effusion and a small perimembranous ventricular septal defect. ...
Houben P F - - 1993
Two cases of aortocaval fistula are described in patients with an otherwise asymptomatic abdominal aortic aneurysm. Both presented because of cardiac symptoms, one with chest pain and acute heart failure and electrocardiogram signs of acute coronary ischaemia, the other with a long history of chronic cardiac failure resistant to therapy. ...
Ataka K - - 1993
A comparative study between left heart bypass with a centrifugal (BioMedicus) pump and with a temporary external shunt was performed to assess the efficacy of distal organ perfusion in the surgical treatment of 31 patients with aneurysm of the descending thoracic aorta. Eighteen patients were supported with a centrifugal pump, ...
Perler B A - - 1993
Over a period of 8 years, 31 femoral pseudoaneurysms following cardiac catheterization were surgically repaired in 15 men and 15 women ranging in age from 38 to 89 (mean 68.1) years. The catheterizations were performed for evaluation of coronary artery disease in 23 patients (77%), valvular heart disease in three ...
Louie E K - - 1993
OBJECTIVES: The purpose of this study was to estimate the prevalence of potential right to left interatrial shunting and to quantify the morphologic characteristics of the fossa ovalis in adults without a prior history of stroke or systemic embolism. BACKGROUND: Paradoxic embolization through a patent foramen ovale is an important ...
Darnell R B - - 1993
We present a patient with episodic hyperhidrosis (EH) who had 15 attacks per day for 3 years following placement of a lateral ventricular shunt. MRI revealed that she had an isolated third ventricle. Stereotactic shunting of the third ventricle resulted in immediate and complete resolution of her symptoms. We suggest ...
Mills N L - - 1993
The resulting abnormal geometry after surgical treatment of left ventricular aneurysm has concerned a number of surgeons since the first successful repair in 1958, but little attention was placed on the altered geometry until attempts were made to effect a more physiologic aneurysmorrhaphy in 1973. Substantial attention was focused on ...
Cedzich C - - 1993
With the introduction of one way calibrated shunt systems, made of silicon rubber, an efficient treatment of hydrocephalus seemed to be possible. The mortality rate decreased rapidly for example for non-communicating hydrocephalus from 80 to 20%. However, other complications appeared, such as shunt infections, shunt malfunctions and even severe thromboembolic ...
Thomas M R - - 1993
Aortoatrial fistulae are uncommon, providing a difficult diagnostic challenge both in the clinical diagnosis and in the choice of an imaging modality that fully delineates the abnormal anatomy and flow patterns. This report describes four cases of aortoatrial fistula resulting from three different underlying causes. The fistula communicated with the ...
Cedzich C - - 1993
It has been known for years that patients with shunted hydrocephalus can develop an isolated fourth ventricle with or without signs of cerebellar dysfunction. It has also been reported about other isolated parts of the ventricular system following treatment of communicating hydrocephalus. We observed three children, two with an isolated ...
Sakai K - - 1992
We studied the echocardiographic findings and clinical features of left ventricular pseudoaneurysm after mitral valve replacement. From December 1979 to March 1991, 1050 patients underwent mitral valve replacement at our institute, and eight patients (0.8%) had left ventricular pseudoaneurysm. In all eight patients, left ventricular pseudoaneurysm developed after the second ...
Kron I L - - 1992
The bias has been that the ideal anatomic circumstance for endocardial resection is the anterior left ventricular location. Posterior left ventricular aneurysms have been thought to be problematic to map and more difficult to close, and possibly to have a different substrate for ventricular tachycardia. To address this problem, we ...
DiPrete D A - - 1992
Treatment of pseudoaneurysms has traditionally been surgical. We evaluated 12 patients who developed femoral artery pseudoaneurysms after cardiac catheterization. Using color Doppler ultrasonography steady pressure was applied, occluding flow in both the neck and body of the pseudoaneurysm for 10 minute intervals. Six patients were treated successfully. We believe the ...
Pang A S - - 1992
For the surgical palliation of massive ascites, a LeVeen or Denver shunt may be implanted to drain ascitic fluid from the peritoneal cavity into the circulation. But all commercial shunts are costly and depend on a synthetic valve to prevent blood refluxing into the peritoneal cavity. We report here the ...
Savage E B - - 1992
Anteroapical left ventricular aneurysms were produced in 23 sheep by coronary arterial ligation. Plication of the aneurysm does not change stroke volume or cardiac output and does not significantly change left ventricular oxygen consumption from the preoperative value of 5.1 +/- 2.6 ml/100 gm per minute. Plication, however, does increase ...
Voci P - - 1992
The case report subject is a patient with an old anteroseptal myocardial infarction and postinfarction angina who developed, over the years, a small left coronary-to-left ventricle fistula. The first coronary angiogram, performed 4 months after the infarction, was negative for coronary fistula. The diagnosis was made 3 years later, at ...
Gratama J W - - 1992
A left to right shunt increases myocardial work and is often accompanied by increased catecholamine levels. Because both increased myocardial work and increased catecholamine levels may induce increased fatty acid utilization, which could increase resting myocardial oxygen consumption and therefore unfavorably affect coronary reserve, we studied myocardial uptake of glucose, ...
Doig J C - - 1992
A 70-year-old patient presented with ventricular tachycardia and left ventricular failure. He was found to have a communication between a posterior left ventricular aneurysm and the right atrium. The causal myocardial infarction had been silent. This defect was satisfactorily closed at operation from which he made an uneventful recovery. This ...
Chen W J - - 1992
A series of 32 patients undergoing cardiac catheterization and/or operation to document the presence of patent foramen ovale (PFO) were studied. All were examined by contrast transthoracic echocardiography (TTE) and transesophageal echocardiography (TEE) during normal breathing and the Valsalva maneuver. A right-to-left shunt at the atrial level was visualized by ...
Langmoen I A - - 1992
A series of 716 children underwent 2065 cerebrospinal fluid shunt procedures. Shunt failure due to fracture of the peripheral drain occurred 60 times, 38 times in ventriculo-atrial and 22 times in ventriculo-peritoneal shunts. The break occurred most commonly 2-4 cm above the neck incision in cardiac and just cephalad to ...
Lazareff J A - - 1992
Multiloculated cerebral ventricles are a well-known complication of neonatal meningitis secondary to gram-negative bacteria. Their presence often hampers the proper functioning of the multiple shunts required for draining the ventricles. To determine whether the associated hydrocephalus may contribute to the development of the ventricular septa, we analyzed the histological structure ...
de Belder M A - - 1992
OBJECTIVE: To investigate the detection rate of cardiac sources of embolism by transoesophageal echocardiography in patients with focal cerebral ischaemic events and to relate the echocardiographic findings to other clinical findings. DESIGN: Prospective study with blinded analysis of the echocardiographic data and subsequent comparison with the other clinical findings. SETTING: ...
Shen W F - - 1992
To determine the clinical and angiographic factors responsible for left ventricular aneurysm formation and the prognosis of patients with aneurysm, 79 patients with a first acute transmural anterior myocardial infarction and angiographically documented isolated left anterior descending artery disease were retrospectively evaluated. Presence of large infarct size and left ventricular ...
Kinney J B JB - - 1992
The patient we have described had coronary artery aneurysms pathognomonic for Kawasaki disease after a nonspecific febrile illness not meeting the classic clinical criteria. The child had significant thrombocytopenia, which in the past has been thought to militate against the diagnosis of Kawasaki disease. Echocardiography should be considered in febrile ...
Komeda M - - 1992
A review of 336 consecutive patients who underwent repair of left ventricular aneurysm from 1978 to 1989 disclosed that partial resection of the aneurysm and conventional closure of the ventriculotomy was performed in 281 patients, inverted T closure in 17, and endocardial patch in 38. These two latter techniques were ...
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