Search Results
Results 251 - 300 of 411
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Landais A - - 1990
The validity of cardiac output measurement by thermodilution in the lateral position during thoracotomy was assessed. Three balloon thermodilution Swan-Ganz catheters were placed in the pulmonary artery trunk and the right and left pulmonary arteries in 12 mongrel dogs, after left thoracotomy had been performed. Cardiac output was measured simultaneously ...
Emerman C L - - 1990
Femoral vein catheterization has advantages over subclavian vein catheterization during cardiac arrest in that there is minimal interference to ongoing CPR. In addition, risks of subclavian catheterization are not a factor in femoral vein catheterization. Few studies have compared the success rate for catheterization of one site with that of ...
Carminati M - - 1990
Aortopulmonary window coexisting with tetralogy of Fallot (TF) was prospectively diagnosed by two-dimensional (2D) echocardiography and Doppler in an 18-month-old boy; the diagnosis was confirmed by cardiac catheterization and angiocardiography. Surgical correction was performed, but the patient died in the operating room from right ventricular dysfunction. The autopsy showed an ...
Chao J C - - 1990
Hemangiomas are uncommon primary tumors of the heart. Most of them are found incidentally at autopsy, during clinical evaluation, or cardiac surgery. Occasionally, a protean clinical picture is manifested, including valvular disorder, arrhythmias, obstruction of coronary artery and other significant vasculature, pericardial effusion, and embolic phenomena. Catheterization, angiography, and echocardiography ...
Marino B - - 1990
Cardiac surgery in 602 children was not preceded by cardiac catheterization, the diagnosis being based on clinical findings and two-dimensional and Doppler echocardiography. In the 355 operations without cardiopulmonary bypass there were nine major and seven minor diagnostic errors (2.5% and 2%). Among the 247 cases with open-heart surgery there ...
Bitar J - - 1990
This retrospective analysis compares data derived by echocardiography and cardiac catheterization in the evaluation of aortic and mitral valve stenosis. Sixty-seven patients, aged 69 +/- 12 years, underwent 76 catheterization procedures. In all studies the Doppler recording was technically adequate. In 64 studies of patients with aortic stenosis, correlation was ...
MacNee W - - 1990
Pulmonary arterial pressure predicts survival in patients with hypoxic chronic obstructive pulmonary disease as does the presence of cor pulmonale. Thus, cardiac catheterization has been performed prior to treatment for long-term oxygen therapy (LTOT) in order to 1) assess the suitability of patients for LTOT, 2) predict survival in patients ...
Repa I - - 1989
Catheterization of the left atrium can provide valuable information about both congenital and acquired heart disease. The traditional approach to examination of the left atrium has been the transseptal route, which has occasionally been associated with serious complications. A method of retrograde left atrial catheterization has been developed that is ...
Martin J E JE - - 1989
A newborn infant with a history of umbilical artery catheterization had renal vascular hypertension and congestive heart failure. An abdominal ultrasound examination revealed aortic thrombosis extending from the celiac axis to the aortic bifurcation. Retroperitoneal aortic thrombectomy was performed without difficulty. The infant's hypertension and cardiac failure resolved. The retroperitoneal ...
Gleason M M - - 1989
The arterial switch procedure has become an accepted reparative technique for transposition of the great arteries with or without ventricular septal defect. In this study the accuracy of prospective noninvasive imaging in detecting arterial tract obstruction and the prevalence and severity of arterial valvular regurgitation (as assessed by Doppler ultrasound) ...
Danielsen R - - 1989
Doppler echocardiographic assessment of the aortic valve area (AVA) using the continuity equation was performed before cardiac catheterization in 100 patients with suspected aortic stenosis. Doppler echocardiographic AVA correlated closely with AVA calculated by the Gorlin equation at catheterization (r = 0.96). However, Doppler echocardiography slightly but systematically underestimated the ...
Mewissen M W - - 1989
Selective catheterization and angiography of brachiocephalic vessels in the elderly may be difficult because of tortuosity and unfolding of the thoracic aorta. Use of a special guide wire contributed to the successful performance of safe femorocerebral angiography with the Simmons sidewinder catheter in the 47 of 48 elderly patients in ...
Orme E C - - 1989
A technique for performing retrograde catheterization of the left atrium followed by double balloon mitral valvuloplasty without transseptal catheterization is described. Three patients have undergone double balloon mitral valvuloplasty by means of this technique, all with marked improvement in postdilatation mitral valve areas. The technique avoids iatrogenic atrial septal defects ...
Sheikh K H - - 1989
Doppler color flow and two-dimensional ultrasonographic images of the femoral region were obtained in 25 patients referred for suspected vascular complications of cardiac catheterization. Five patients had normal findings, while 23 abnormalities were noted in 20 patients, including seven femoral arteriovenous fistulae, 12 femoral pseudoaneurysms, and two patients with both ...
Kikuchi Y - - 1989
A new guidewire constructed from kink-resistant titanium-nickel alloy, polyurethane, and hydrophilic polymer is described. We have used this wire in 119 angiographic and 49 interventional procedures without complications. In numerous applications, it offers significant advantages over other guidewires. It is particularly helpful for angiography and interventional procedures requiring catheterization through ...
Vaghei R - - 1989
Brachial artery catheterization via cutdown and a direct needle puncture was evaluated in 369 patients undergoing arteriography at the authors' medical center from January, 1970, to March, 1988. The indications for retrograde brachial arteriography were absence of palpable femoral pulses, failure of a femoral approach, previous aortic bypass surgery, and/or ...
Groome J - - 1989
Twenty-three cases of arterial injury after 8,208 arterial catheterizations for diagnostic or therapeutic indications at Glasgow Royal Infirmary are reviewed. Clinical presentation included haematoma formation, development of an acutely ischaemic limb or a false aneurysm. Patients with valvular heart disease are identified as a high risk group. Nine cases were ...
Sprung C L - - 1989
The need for the prophylactic insertion of a pacemaker before pulmonary artery catheterization in patients with pre-existing left bundle-branch block (LBBB) is controversial. To determine the incidence of new right bundle-branch block (RBBB) and complete heart block during bedside pulmonary artery catheterization, 293 patients undergoing 307 pulmonary artery catheterizations were ...
Dev V - - 1989
A 1 1/2-year-old female patient with atrial and ventricular septal defects and severe pulmonary arterial hypertension was found to have discrete stenosis of left upper and middle lobe pulmonary veins. The diagnosis was made by cross-sectional and Doppler echocardiography. The findings were confirmed at cardiac catheterization and operation. Pressure gradients ...
Romano T J - - 1988
Atheromicroembolism after aortic or cardiac catheterization is frequently found at autopsy but rarely recognized in life, perhaps because many cases are asymptomatic. We report two patients who, after left heart catheterization, developed gastrointestinal hemorrhage from a solitary colonic ulcer caused by occlusive atheromicroemboli in submucosal vessels. We briefly review the ...
Matthay M A - - 1988
The decision to use bedside pulmonary artery catheterization for managing patients must involve a careful assessment of the risks compared to the benefits. Complications can be minimized by following specific guidelines for catheter insertion and maintenance. Pulmonary artery catheterization has been shown to be more accurate than clinical assessment alone ...
Fontaine S - - 1988
Thirty-two patients suffering from high-grade glioma were candidates for superselective cerebral arterial infusion of 1,3-bis-(2-chloroethyl)-1-nitrosourea (BCNU) after surgery and radiation therapy. There were 74 catheterizations using an 8-French guiding catheter through which a 2.5-French balloon catheter was placed into the main arterial trunk feeding the tumor. Eleven procedures were abandoned ...
Hawkins J S - - 1988
A directional needle with a closed pencil-point tip and a distal side hole was developed to permit antegrade guide wire placement by way of a 90 degrees puncture angle. It has been used in over 25 patients without technical difficulties or complications. It has been very effective for catheterization of ...
Vaughn S - - 1988
For many years, the pulmonary artery catheter has been used to monitor cardiac filling pressures and to determine cardiac output in hemodynamically unstable patients. Recently, a new pulmonary artery catheter with fiberoptic capabilities, which provides continuous mixed venous O2 saturation (SvO2) measurements, has become available and has been found to ...
Clark S L - - 1988
The obstetric literature reflects an increased interest in invasive hemodynamic monitoring during the past decade. While much of this interest has focused on research applications, the patient with severe preeclampsia may benefit clinically from pulmonary artery catheterization under several circumstances. These conditions include severe hypertension unresponsive to conventional antihypertensive therapy, ...
Simo M J - - 1988
The aim of this study was to demonstrate that total hemodynamic evaluation of patients with aortic regurgitation can be performed on an outpatient basis by combining right heart catheterization with digital subtraction angiography (DSA). Thirteen patients with severe aortic regurgitation were catheterized as outpatients, without premedication. The pulmonary artery was ...
Kosmorsky G - - 1988
We examined ten patients who, from 1981 to 1986, sustained neuro-ophthalmologic events during cardiac catheterization. Eight patients, most of whom recovered, were believed to have sustained embolic phenomena. Two patients experienced a typical migraine during the catheterization and likewise did well. We conclude that the likelihood of sustaining a neuro-ophthalmic ...
Karpman V L - - 1988
Most studies dealing with the arterial system impedance as resistance to blood ejection from the left ventricle are based on catheterization examinations of the aorta and the great arteries. The present work shows the possibility of using non-invasive approaches and describes one of them consisting in non-invasive determination of arterial ...
Arditis J - - 1988
A case of an accidental placement of the introducer sheath of a Swan Ganz catheter into the right lymphatic duct during right internal jugular vein catheterization is presented. This rare complication has to be reported, because the choice of the right internal jugular vein for central venous catheterization has been ...
Uchino A - - 1988
Selective intra-arterial digital subtraction angiography of the brachiocephalic arteries using the right brachial artery approach was successfully performed for 169 of 173 patients, 33 of whom were outpatients. Catheterization was unsuccessful for four patients; two of them elderly hypertensive men with tortuous brachial arteries, and two of them middle-aged obese ...
Rudas G - - 1988
A neonate developed aortic thrombosis following catheterization of the umbilical artery. The thrombus was identified and followed up by ultrasonography. Fibrinolytic therapy led to the almost complete disappearance of the aortic thrombus but the child died of cerebral haemorrhage. Physicians should be alerted to the possibility of aortic thrombosis in ...
LaBerge J M - - 1987
Traumatic aortic lacerations are life-threatening injuries that require a prompt diagnosis and surgery if patients are to survive. Most authors recommend transfemoral catheterization when performing thoracic aortography in patients with suspected aortic lacerations. The authors of this study describe two patients in whom transfemoral catheterization and contrast material injection were ...
Morris D - - 1987
We examined the incidence of complete heart block (CHB) as a complication of pulmonary artery catheterization with balloon-tipped, flow-directed catheters in patients with left bundle-branch block (LBBB). The study group included 47 consecutive critically ill patients with LBBB in the medical intensive care and coronary care units, who underwent a ...
Alfonso F - - 1987
In a patient with a large pericardial effusion without any clinical signs of cardiac tamponade, echocardiography revealed collapse of the right ventricle and prolonged (greater than 34%) inversion of the free wall of both atria, maximal in early systole. The presence of such findings in the absence of clinical signs ...
Block P C - - 1987
Percutaneous balloon aortic valvuloplasty (PAV) has been reported in children and in selected adults with aortic stenosis using retrograde arterial catheterization. Some patients, however, cannot undergo retrograde catheterization because of atherosclerotic disease, previous vascular surgery or the presence of vessel tortuosity. Because PAV requires the use of large balloon dilating ...
de Madron E - - 1987
A dog was examined because of cardiac tamponade secondary to pericardial effusion. Masses adjacent to the right atrial and ventricular walls were revealed by echocardiography. Pericardectomy and biopsies of the masses established the diagnosis of idiopathic hemorrhagic pericardial effusion with organized thrombi. The dog was healthy 3 months after surgery. ...
Easterling T R - - 1987
In 12 patients requiring pulmonary artery catheterization, cardiac output was measured using Doppler and thermodilution techniques. The Doppler technique accurately predicted measurements made by thermodilution (r = 0.91; P less than .001). Eighteen normal patients in the third trimester and 36 preeclamptics who had not been treated with medications other ...
Laurin S - - 1987
Factors influencing the rate of post-catheterization venous thrombosis were studied in 180 infants below one year of age. The initial cardiac catheterization was performed either with cutdown technique or percutaneously. At repeat catheterization on the ipsilateral side presence or absence of thrombosis was noted. The overall thrombosis frequency was higher ...
Smith T P - - 1987
Three commercial vessel dilators and a dilator of an improved design were tested during percutaneous catheterization in 16 mongrel dogs to evaluate arterial damage produced with their use. The results indicate that, although all dilators often produce arterial damage, the improved design produced much less damage. In addition, lesions were ...
Saltzman J - - 1987
Mainly for anatomical reasons a guide-wire or a catheter has a tendency to turn into the deep femoral artery during antegrade catheterization of the lower limb. To overcome this problem a curved puncture needle has been designed which allows positioning of the guidewire in an anterior direction. Antegrade catheterization of ...
van Weeren P R - - 1987
A technique for catheterizing male small ruminants is described. The barrier formed by the presence of the urethral diverticulum is avoided by the use of a pre-curved catheter. The technique enables application of contrast studies of bladder and urethra in animals suspected of urolithiasis. Differentiation between cystitis and obstructive urolithiasis ...
French W J - - 1987
Measurement of cardiac output (CO) requires right-sided cardiac catheterization. However, to save time and reduce costs, only left-sided cardiac catheterization is usually performed in most patients with suspected coronary artery disease. Thus, CO is not measured. To determine if CO can be measured from the left side of the heart, ...
Ashcraft K W - - 1986
Some current trends in the management of neurogenic bladder have been toward utilization of the urinary bladder as a storage device with a continent catheterizing stoma. This study presents a procedure using the now standard Cohen ureteral reimplantation, followed some 6 weeks later by transureteroureterostomy and distal ureteral stomal formation, ...
Martin C - - 1986
The axillary vein route was investigated prospectively for percutaneous pulmonary artery catheterization in 79 patients who underwent 83 attempts. Forty nine of these patients were tracheostomized and under mechanical ventilation and eight had hemostasis disorders. Successful catheterization was achieved 74 times in the 79 patients. Pulmonary artery was reached within ...
McCollum C H - - 1986
During a 3-year period, 12,158 cardiac catheterizations were performed via the brachial artery. During this same period, 106 patients were operated on for complications of brachial artery injury and/or thrombosis, an incidence of 0.9%. The indication for the cardiac catheterization was coronary artery disease in almost 92% of the patients. ...
Cope C - - 1986
The frequency of arterial trauma or hematoma can be reduced by using smaller puncturing needles (21-gauge) and catheters (4- or 5- French). Versatile ultrafine guide wires are now available for selective and superselective catheterization. This miniaturization of angiographic equipment allows many vascular procedures to be performed safely on an outpatient ...
Lipchik E O - - 1986
We describe modifications and suggestions for safer percutaneous catheterization of the brachial artery based in part on the anatomy of the axillary-brachial artery and surrounding nerves of the brachial plexus. The brachial artery approach should be nearly as safe as the femoral artery approach for percutaneous catheterization and should not ...
Grant K C - - 1986
To determine how useful pulmonary artery catheterization is in abdominal aortic surgery and which patients are most likely to benefit from the procedure, the author studied 28 patients with aneurysms and 22 with obstructive disease. Patients with multiple risk factors, except those with leaking aneurysms, were assessed before operation by ...
Damen J - - 1986
During 1983 and 1984, 1305 patients underwent 1,400 pulmonary artery (PA) catheterizations. Successful placement was achieved in 1397 (99.6%) of 1,403 attempts. The catheters were inserted via the right internal jugular vein on 1364 occasions. The median duration of monitoring was 28 h with a range from 3 to 220 ...
Suzuki A - - 1986
In our institute, 1100 patients with a history of Kawasaki disease have been catheterized for selective coronary arteriography. Their age at examination ranged from four months to 13 years. Coronary artery lesions (CAL) were found in 262 patients. As far as the type of the CAL was concerned, occlusion was ...
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