Search Results
Results 501 - 550 of 813
< 6 7 8 9 10 11 12 13 14 15 16 >
Janigan D T - - 1997
BACKGROUND: Hyperphosphatemia complicated by calcification of subcutaneous arteries and skin infarcts are very rarely reported in the absence of chronic renal failure (CRF). We describe identical lesions in an obese woman with sepsis. Hyperphosphatemia resulted from an unintended excess of phosphate in her total parenteral nutrition (TPN) formulations. She did ...
Bankier A A - - 1997
The aim of this study was to determine the frequency of radiographically evident central venous catheter misplacement in the azygos arch and to analyze whether the frequency of azygos arch cannulation is dependent on the anatomical site of catheter insertion. We reviewed 1,287 postprocedural examinations and 3,441 follow-up examinations. Catheters ...
Yung B - - 1997
The case is described of a potentially life threatening complication relating to the use of a totally implantable venous access device (Port-a-Cath) in a 28 year old patient with cystic fibrosis. The device was inserted in 1990 and used repeatedly for antibiotic therapy without any complications. In 1995, during assessment ...
Mechem C C - - 1997
We describe a case of cardiac tamponade due to pulmonary artery laceration as a late sequela in a patient who had sustained penetrating chest trauma. A 35-yr-old man presented to our emergency department complaining of pleuritic left chest pain, shortness of breath, and fever 19 days after being hospitalized for ...
Wacker F - - 1997
Color duplex sonography (CDS) is primarily applied as a diagnostic procedure. It has not yet established itself as an aid in punctures or other interventions. The aim of this study was to evaluate the value of CDS in arterial and venous vascular punctures. One hundred and sixty-five CDS-assisted vascular punctures ...
Giner J - - 1996
STUDY OBJECTIVE: To quantify the level of pain reported by patients during arterial puncture with or without local anesthesia, and to compare the results with levels reported for venous puncture. DESIGN: Double-blind study of puncture with and without local anesthesia. SETTING: Pulmonary function laboratory, department of pneumology. PATIENTS: We studied ...
Bruninx G - - 1996
A patient with axillary venous thrombosis caused by lymph node compression and the presence of a displaced catheter in the vascular lumen is presented. In this case, percutaneous interventional radiological procedures (balloon angioplasty and snare loop method) in conjunction with medical treatment were effective in limiting the post-thrombotic syndrome and ...
Sivaram C A - - 1996
Thrombosis of upper extremity veins and superior vena cava (SVC) can occur in patients with indwelling central venous catheters. Contrary to earlier reports, pulmonary embolism (PE) can result from these thrombi, especially when they are attached to catheters (sleeve thrombi) in contrast to venous wall (mural thrombi). Removal of catheters ...
Ng K S - - 1996
This case report hopes to bring to attention the possibility of malposition and ligation of a long central venous catheter in a central venous tributary in the course of major neck surgery. A 49-year-old gentleman underwent total laryngectomy and right radical neck dissection for laryngeal carcinoma. A long central venous ...
Byrd R P RP - - 1996
Because of the frequent use of central venous catheters, deep venous thrombosis of the upper extremity is more common than previously reported. A significant number of patients suffer pulmonary embolization from catheter-associated thrombosis. This observation should be considered as a major factor in the risk benefit analysis of the utility ...
Walser E M - - 1996
During routine placement of a subclavian central venous catheter for cancer chemotherapy, a sheath was inadvertently placed into the aortic arch, through the left lung. We describe a technique for transthoracic compression of the aortic injury using the sheath in conjunction with an occlusion balloon catheter.
Yagihara T - - 1996
To extend the indications for corrective operation in patients with pulmonary atresia, ventricular septal defect, and major aortopulmonary collateral arteries, surgical procedures were done to unify the blood sources for pulmonary perfusion. Since December 1985, 50 patients have undergone unifocalization at ages from 2 months to 26 years with a ...
Kopuz C - - 1996
The purpose of this study is to evaluate the termination and angulation of the EJV (External jugular vein) and the number and the position of its valves so as to improve our understanding of the anatomy of the EJV and to make the manuplation easier in central venous catheterization in ...
Foth H - - 1996
We observed the in vivo kinetics of bupivacaine in the cardiopulmonary system, particularly in the pulmonary artery, the upper part of the descending aorta and the coronary sinus of anaesthetized sheep, each of which received a high dose infusion into the central vein. In some experiments dilution curves were monitored ...
Garcia-Rodriguez C R - - 1996
We report a case of a preeclamptic patient with a difficult airway in whom attempted central venous cannulation led to inadvertent carotid artery puncture and dilatation causing immediate life threatening upper airway obstruction. The use of the laryngeal mask airway was life-saving on two occasions when other techniques of airway ...
Dean B L - - 1996
RATIONALE AND OBJECTIVES: The authors determine the reliability of centralized versus noncentralized (site-based) measurement of angiographic stenosis of patients enrolled into the multicenter, prospective, Asymptomatic Carotid Atherosclerosis Study by angiographic studies. METHODS: Percent agreements and correlations of 244 masked and prospectively interpreted angiograms were calculated for comparison of centralized and ...
Spears F D - - 1996
A 21-year-old woman underwent correction of congenital thoracic kyphoscoliosis. The procedure was completed in two stages. The first stage involved right thoracotomy and anterior vertebrectomy. Following positional obstruction of her right-sided chest drain she developed a very large, left-sided pneumothorax in the immediate postoperative period. No attempt at central venous ...
Frieden I J - - 1996
BACKGROUND: Large facial hemangiomas can have associated central nervous system malformations, particularly the Dandy-Walker posterior fossa malformations. Abnormal arteries, especially those of the central nervous system, coarctation of the aorta, cardiac defects, and unusual ophthalmologic abnormalities can also occur. OBSERVATIONS: We describe two patients with large facial hemangioma, congenital cataracts, ...
Kerensky R A - - 1996
It is not known how the site of arterial administration of heparin and the timing of the activated clotting time (ACT) measurement affect the ACT during coronary interventions. We measured serial femoral venous ACTs after heparin was administered either via the angioplasty guiding catheter into the central aorta or peripherally ...
Mustonen P K - - 1996
Both ventricular fibrillation and electric defibrillation are detrimental to the myocardium. Therefore, we studied the effect of procaine hydrochloride during crystalloid cardioplegia and the effect of performing all central anastomoses before aortic declamping in an attempt to prevent ventricular reperfusion fibrillation during coronary bypass operation. Seventy-four patients were randomised, first ...
Ishizaka T - - 1996
Unifocalization, a surgical technique to unifocalize the pulmonary blood supply in patients with pulmonary atresia, ventricular septal defect and major aortopulmonary collateral arteries, is a useful preparative operation to extend the indication for corrective surgery. The preoperative and postoperative pulmonary angiograms of 51 patients (aged 3 months-26 years at first ...
Honeybul S - - 1996
Using detailed cadaveric dissections this study has demonstrated and quantified the increase in exposure and additional access gained by using the orbitozygomatic infratemporal fossa approach for neurosurgical access. The surgical window of exposure can be increased by up to 300% when this technique is utilised to facilitate access via either ...
Reisman M - - 1996
The guidewire in rotational atherectomy is an integral component in the ablative process. It functions not only to deliver the device but sets the cutting vector when the burr advances. Since the guidewire is a stiff stainless steel monofilament and the vessels are frequently tortuous and angulated, the guidewire may ...
Kestin I G - - 1995
Cusum analysis is a statistical technique to distinguish deviations from an acceptable failure rate. The progress of anaesthetic trainees learning four practical procedures (obstetric extradural anaesthesia, spinal anaesthesia, central venous cannulation and arterial cannulation) was monitored from their first attempt using cusum analysis. Suitable acceptable and unacceptable failure rates for ...
Köksoy C - - 1995
Catheter-related venous thrombosis is one of the most important complications of central venous catheters. The aim of this prospective study was to assess the risk factors that may be important in the development of catheter-related thrombosis. Multiple lumen (n = 20) and single lumen (n = 24) polyurethane catheters were ...
Childs A M - - 1995
Central venous parenteral nutrition (PN) is frequently used in preterm infants. Although central venous catheters (CVC) permit reliable delivery of hypertonic solution, they may be associated with more serious complications than when a peripheral venous infusion is used. The aim of this randomised prospective study was to compare complications of ...
Poletti C E - - 1995
Degenerative central lumbar stenosis has traditionally been considered to be a result of bony narrowing of the spinal canal. In two consecutive patients with degenerative central lumbar stenosis and complete myelographic blocks, the cauda equina was compressed by a thickened ligamentum flavum (cross-sectional area [CSA], > 150 mm2). This ligamentous ...
Germann G - - 1995
Central venous thrombosis is a rare but extremely dangerous complication following central venous catheter placement. Two cases of massive central venous thrombosis in severely burned patients are reported. The clinical course, diagnostic problems and treatment options are described and discussed. From these cases we conclude that central venous catheter thrombosis ...
Perry L J - - 1995
The role of radiology and the interventional radiologist in the care of patients requiring long term venous access is expanding. This role includes multimodality imaging for anatomic evaluation, guided catheter placement or repositioning, and diagnosis and treatment of catheter occlusion or related venous thrombosis. Interventional procedures have been developed for ...
Gamby A - - 1995
In intensive care units where heparinised arterial lines are used, frequently staff venepuncture their patients to ensure accuracy of clotting studies. The purpose of this study was to assess the practicality of using a non-heparinised continuous flush for arterial lines, which would enable blood for coagulation studies to be taken ...
Czepizak C A - - 1995
OBJECTIVE: To evaluate the accuracy of formulas designed to estimate the optimum intravenous length of central venous catheters. DESIGN: A prospective study of catheter insertion sites to evaluate the accuracy of predetermined formulas that predict the intravascular insertion length required to avoid intracardiac catheter tip placement. SETTING: A 320-bed tertiary ...
Jepsen S T - - 1995
The Nutritional Support Service (NSS) at William Beaumont Hospital has successfully inserted over 2000 peripherally inserted central catheters (PICCs) since the inception of its PICC program in 1990. The following is a case study of a 43-year-old female with diabetes mellitus and multiple drug allergies who presented to the NSS ...
Hartnell G G - - 1995
Central venous catheters inserted by blind surgical placement may not advance into a satisfactory position and may require repositioning. Malpositioning via surgical insertion is common in patients in whom central venous catheters have previously been placed, as these patients are more likely to have central venous thrombosis and distortion of ...
Harden J L - - 1995
Central venous access for the administration of total parenteral nutrition is usually achieved via the subclavian or internal jugular veins. Although a high incidence of complications has been reported with the use of femoral catheters for central venous access, this route has been used when traditional central venous access is ...
Hartnell G G - - 1995
PURPOSE: The systemic chest veins may be difficult to show comprehensively by contrast venography, especially if there is limited venous access or contraindications to intravenous contrast. As an alternative, can magnetic resonance angiography (MRA) reliably detect occluded chest veins and predict suitable sites for central venous access? PATIENTS AND METHODS: ...
Sing R F - - 1995
Venous air embolism is an infrequent, but potentially disastrous, occurrence after the insertion or removal of central venous catheters. The authors describe fatal venous air embolism after removal of a central venous catheter in a 43-year-old man recovering from coronary artery bypass surgery. They discuss the pathophysiology, diagnosis, treatment, and ...
Lee R - - 1995
The placement of left atrial catheters following cardiopulmonary bypass (CPB) allows accurate monitoring of left ventricular filling pressures, as well as access for the infusion of vasoactive drugs. While the left atrial administration of norepinephrine (NE) is thought to provide higher systemic arterial NE levels while minimizing any pulmonary vasoconstriction, ...
Ikeda S - - 1995
We report herein the case of a 2-year-old girl with short bowel syndrome who developed chest pain 2 weeks after a totally implantable central venous access catheter had been surgically placed to facilitate total parenteral nutrition. A lateral chest X-ray and contrast flow study subsequently revealed that the catheter tip ...
Dionisio P - - 1995
Mismanagement in the placement of central venous catheter (CVC) may occur in up to 20% of cases. The catheter can be inadvertently placed in the contralateral brachiocephalic vein, the ipsi or contralateral internal jugular vein, and usually a thoracic radiograph is necessary to evaluate its location. We propose a technique ...
Martinez-Tallo E - - 1995
We present three preterm infants with pulmonary complications due to central venous silicone catheters malpositioned in the left or right pulmonary artery. One infant developed an arterial-bronchial fistula. The other two infants had pneumonitis without evidence of vessel perforation. The course of these complications was good after the catheter was ...
Iwasaki H - - 1994
The purpose of this study was to determine the onset times of vecuronium neuromuscular block administered into either the central circulation or a peripheral vein. One hundred and twenty adult patients with a pulmonary artery (PA) catheter were randomly divided into one of three groups with respect to the routes ...
Madan M - - 1994
Central venous catheters used for chemotherapy are usually sited so that the catheter tip lies in the superior vena cava. This study evaluated right atrial electrocardiography as a method of accurately placing the catheter tip in 34 patients over a period of 22 months. An electrocardiograph adaptor was connected to ...
Criado E - - 1994
To evaluate the impact of central venous obstruction on upper extremity hemodialysis access failure, we retrospectively analyzed our recent experience in managing this problem. We reviewed 158 upper extremity hemodialysis access procedures performed in 122 patients during a 1-year period. Fourteen (11.5%) patients had central vein obstruction as the cause ...
Dollery C M - - 1994
Although the use of silicone catheters for long-term central venous access is widespread, little is known about the incidence of pulmonary thromboembolic complications. We studied clinical events, lung perfusion scans, and echocardiographic screens in 34 children and adolescents with gut failure who had received cyclical parenteral nutrition for 2 months ...
Jaime-Solis E - - 1994
Central venous catheterization in pediatric patients has, among other risks, flebitis and thrombosis, and finally occlusion of the superior and inferior venae cavae, making long-term catheterization and multiple venous cutdown more difficult. Use of the internal mammary vein might be an alternative procedure to provide sure and easy access to ...
Vucevic M - - 1994
Central venous access is an essential part of patient management in many clinical settings. Traditionally this has been achieved by a blind, external landmark guided technique which may not correlate exactly with the location of the vessel. We have prospectively evaluated the SMART needle, a new Doppler ultrasound guided vascular ...
Ruble K - - 1994
Central line thrombus is a well recognized complication of long-term venous access devices. Oncology nurses are key players in the recognition and treatment of central line thrombus. An understanding of the mechanisms and interrelated variables in the formation of thrombus, as well as knowledge of treatment alternatives is essential for ...
Pippus K G - - 1994
Authors of recent publications advocate central venous access by saphenous vein cutdown in the thigh. Even relatively inert SILASTIC catheters are recognized to convey a risk of large vein thrombosis when maintained for long periods. Thrombosis of the inferior vena cava (IVC) and tributaries place the patient at risk for ...
Sizun J - - 1994
OBJECTIVE: To determine the incidence of Malassezia furfur-related colonization and infection of central venous catheters. DESIGN: Prospective clinical study. SETTING: A paediatric intensive care unit at a University Hospital. PATIENTS: 66 newborns with central venous catheters for parenteral nutrition including lipid emulsions (Intralipid). METHODS: When a central venous catheter was ...
Fan P Y - - 1994
Dual lumen central venous hemodialysis catheters have become the preferred form of acute of acute vascular access. Although they provide rapid angioaccess, these catheters are associated with a number of serious insertion complications. Furthermore, prolonged use can lead to late complications including infection and central venous stenosis. Recent advances in ...
< 6 7 8 9 10 11 12 13 14 15 16 >