Search Results
Results 401 - 450 of 1150
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Bitar Fadi F - - 2003
We report on the acute onset of respiratory distress secondary to fluid accumulation in the chest within hours of placement of an external jugular venous line in a newborn. External jugular venous catheterization in the newborn is a procedure with potentially serious complications, and should be avoided unless the patient ...
de Rijcke Piet A R - - 2003
Endoscopic ligation of perforating veins is useful in treatment of perforating vein incompetence. Over the last few years the topic of interest has been the medial side of the lower leg; however, laterally located venous ulcers (10% of all) are of equal importance. Our poor results with lateral subfascial endoscopic ...
Hopps Carin V - - 2003
PURPOSE: The groin approach to varicocelectomy is performed by an inguinal (aponeurosis of external oblique opened) or subinguinal (external oblique aponeurosis intact) technique. We describe the number and relationship of internal and external spermatic arteries, veins and lymphatics within the subinguinal portion of the spermatic cord in infertile men undergoing ...
Zippel Kevin C - - 2003
The crocodilian spinal vein is remarkably robust yet historically overlooked. Using corrosion casting, we describe the anatomy of this vessel and its connections with the caval and hepatic venous systems in representatives from four crocodilian genera. The spinal vein arises from an enlarged occipital sinus over the medulla and extends ...
Chaynes Patrick - - 2003
OBJECT: The deep cerebral veins may pose a major obstacle in operative approaches to deep-seated lesions, especially in the pineal region where multiple veins converge on the great cerebral vein of Galen. Because undesirable sequelae may occur from such surgery, the number of veins and branches to be sacrificed during ...
Krakowiak-Sarnowska Elzbieta - - 2003
The aim of the study was to examine the variability of the azygos vein system and to determine the location of the veins with reference to the vertebral midline and the skeletopy of their termination. The research material consisted of 32 human foetuses (14 male, 18 female) from 21(st) to ...
Yao Yuki - - 2003
PURPOSE: To examine the incidence and appearance of the communicating vein between the left renal vein (LRV) and the left ascending lumbar vein (LALV) on abdominal CT. MATERIALS AND METHODS: We reviewed the appearance of the communicating vein on contrast-enhanced CT obtained by multidetector-row CT (MDCT) scanner. One hundred patients ...
Martínez J M - - 2003
OBJECTIVE: The aim of our study was to obtain measurements of the jugular vein and carotid artery pulsatility index (PI) at 10-14 weeks' gestation in chromosomally normal and abnormal fetuses with or without increased nuchal translucency (NT), in order to explore whether a relationship exists between increased NT and overperfusion ...
Pérez-Rivera Alex A - - 2004
These studies examined adrenergic reactivity of mesenteric arteries and veins from deoxycorticosterone acetate-salt (DOCA-salt) hypertensive and sham control mice. We measured constrictions in unpressurized arteries and veins by monitoring vessel diameter using computer-assisted video micros-copy in vitro. Veins were more sensitive than arteries to the constricting effects of norepinephrine (NE) ...
Trifilò Patrizia - - 2003
The kinetics of leaf vein recovery from cavitation-induced embolism was studied in plants of sunflower cv. Margot, together with the impact of vein embolism on the overall leaf hydraulic conductance (Kleaf). During the air-dehydration of leaves to leaf water potentials (Psi L) of -1.25 MPa, Kleaf was found to decrease ...
Labropoulos Nicos - - 2003
This prospective study was designed to determine the upper limits of normal for duration and maximum velocity of retrograde flow (RF) in lower extremity veins. Eighty limbs in 40 healthy subjects and 60 limbs in 45 patients with chronic venous disease were examined with duplex scanning in the standing and ...
Ege T - - 2003
A 36-year-old woman with effort dyspnea for 2 years, venous congestion of the left arm for 6 months and who did not have a history of a thoracic trauma was hospitalized. Posterior bilateral dislocation of the sternoclavicular joints and compression of the brachiocephalic vein were diagnosed and conformed by computed ...
Shiraishi Jun - - 2003
Pulmonary vein varix is a rare abnormality, often resembling a pulmonary or mediastinal mass on chest radiographs, and pulmonary angiography has been the mainstay of diagnosis. An unusual case of pulmonary vein varix was clearly defined by echocardiography performed in a 47-year-old woman with chest discomfort who had been found ...
Hind Daniel - - 2003
To assess the evidence for the clinical effectiveness of ultrasound guided central venous cannulation. 15 electronic bibliographic databases, covering biomedical, science, social science, health economics, and grey literature. Systematic review and meta-analysis of randomised controlled trials. Populations Patients scheduled for central venous access. INTERVENTION REVIEWED: Guidance using real time two ...
Harada Hiroyuki - - 2003
OBJECTIVE: To determine the incidence of thrombosis and change in caliber of the internal jugular vein after neck dissection. PATIENTS AND METHODS: Between September 1999 and December 2000, we studied 68 patients who underwent 76 neck dissection that spared the internal jugular vein. Thrombosis of the internal jugular vein was ...
Mehrara Babak J - - 2003
The lack of adequate recipient vessels often complicates microvascular breast reconstruction in patients who have previously undergone mastectomy and irradiation. In addition, significant size mismatch, particularly in the outflow veins, is an important contributor to vessel thrombosis and flap failure. The purpose of this study was to review the authors' ...
Schummer Wolfram - - 2003
OBJECTIVE: A case-control comparison of Doppler guidance on the success rate of central venous cannulation in patients with normal or reduced intracranial compliance. DESIGN: A single operator performed central venous access procedures with continuous wave Doppler guidance. It was used on patients on a ventilator. The position of patients with ...
Valsangiacomo Emanuela R - - 2003
BACKGROUND: Pulmonary venous (PV) obstruction may complicate surgical repair of PV abnormalities. By combining phase-contrast cine (PC) imaging and contrast-enhanced angiography, magnetic resonance (MR) imaging can provide physiological information complementing anatomical diagnosis. OBJECTIVES. To compare the PV flow pattern observed after surgical repair of PV abnormalities with normal PV flow ...
Gülsün M - - 2003
A case of anomalous (subaortic) position of the left brachiocephalic vein was incidentally detected on computed tomography images. Magnetic resonance angiography was performed to demonstrate the relationship of this vessel with other vascular structures. The anomalous vein was formed by the union of the left internal jugular and left subclavian ...
Faber Thomas S - - 2003
Our report describes the late migration of an atrial screw-in lead into the right internal jugular vein causing subsequent subclinical thrombus formation at the tip of the electrode. Previously initiated anticoagulation for atrial fibrillation may have prevented complete occlusion of the internal jugular vein. Therefore, prophylactic anticoagulation should be considered ...
Clarke M G - - 2003
Lemierre's syndrome, caused by Fusobacterium necrophorum, is a potentially fatal sequelae of a sore throat characterised by septicaemia, internal jugular vein thrombophlebitis and metastatic abscesses. The Chief Medical Officer reported in February 2001 that the incidence is increasing. Two cases seen in one year, with different presentations, are reported. The ...
Lau H - - 2003
BACKGROUND: A sound knowledge of retropubic pelvic vascular anatomy is pivotal to the successful performance of endoscopic total extraperitoneal (TEP) inguinal hernioplasty. The objective of the current study was to evaluate the incidence and anatomy of iliopubic and aberrant obturator vessels. METHODS: Between July 2001 and March 2002, a prospective ...
Wang Tsui-min - - 2003
Pulmonary veins may serve as source of ectopic focus (or foci) in initiating atrial tachyarrhythmias in human beings. However, the animal model for such focal atrial fibrillation is still lacking and cellular mechanism for arrhythmias remains to be studied. Recently, a series of reports of cellular electrophysiological characterization of pulmonary ...
Bengisun U - - 2003
OBJECTIVES: to determine the anatomic location of medial perforating veins (PVs) and their course within the compartments of the leg. MATERIALS AND METHODS: the lower extremity veins of 15 cadavers were filled with coloured latex solution. Medial PVs between the ankle and the knee were dissected out. RESULTS: in total ...
Aksoy G - - 2003
Morphology of the veins draining the heart was studied in the Van cat. Veins draining the heart were the great cardiac vein, the middle cardiac vein, the right cardiac veins and the smallest cardiac veins. No anastomosis was observed between the terminal branches of the paraconal interventricular vein and the ...
Salles-Cunha Sergio X - - 2003
Endovascular placement of prosthetic valves is currently in clinical trials as treatment for lower extremity venous hypertension caused by valvular insufficiency. Femoropopliteal vein sizing is a critical factor in treatment planning. A wide diameter range could influence selection of an endoprosthesis. Quantitative data describing intrasubject vein diameter variation are scant. ...
Wilhelmi Bradon J - - 2003
Successful replantation of the scalp with microanastomosis of a single artery and vein has been reported to produce reliable results. In fact, there have been several reports of scalp replantations based on one-artery and vein repair. There has been a face and scalp replantation reported in the literature, but this ...
Galloway S - - 2003
BACKGROUND: The central veins that are usually cannulated are the jugular, subclavian, femoral and brachial. If subclavian catheterization is difficult using surface landmark techniques, we now use ultrasound to catheterize the infraclavicular axillary vein. This approach is not widely used and the ultrasound appearance has not been formally described. We ...
Fauzi A R - - 2003
Central vein stenosis is usually associated with previous cannulation or trauma to the affected vein. This pathology may present as ipsilateral arm swelling in patients in whom a recent arteriovenous fistula has been prepared for chronic hemodialysis. The presence of central vein stenosis without prior trauma or cannulation is not ...
Ozüdoğru Z - - 2003
The drainage of the thoracic limb of the Van cat was performed by the superficial and deep vein systems. The superficial system was constituted by the cephalic vein and its branches. The deep vein system was constituted by the axillary vein and its branches. The two vein systems anastomosed with ...
Panzironi Giuseppe - - 2003
Bilateral internal jugular vein thrombosis is a rare complication of thyroid cancer. The most common manifestation of this condition is superior vena cava syndrome. We report the sonographic findings in a case of bilateral internal jugular vein thrombosis with mild symptoms. There was evidence of direct infiltration of anaplastic thyroid ...
Gupta V - - 2003
The superficial veins, especially the external jugular vein (EJV), are increasingly being utilized for cannulation to conduct diagnostic procedures or intravenous therapies. Ultrasound-guided venipuncture is a viable possibility in cases of variations in the patterns of superficial veins, and their knowledge is also important for surgeons doing reconstructive surgery. This ...
Victor Solomon - - 2003
In the human heart there is a sequential contraction of the systemic veins, systemic venous sinus and the pectinated right atrium, 'the systemic waltz', and sequential contraction of the pulmonary veins, pulmonary venous sinus and pectinated left atrium, 'the pulmonary waltz'. The systemic veins contract earlier than the pulmonary veins ...
Skowroński Adam - - 2003
The aim of the study was the microscopic evaluation of the human spermatic cord vessels, with special attention to the connection between the testicular artery and the veins of the pampiniform plexus. We used the corrosive cast method to visualise the angioarchitecture of the spermatic cord. Casts were evaluated using ...
Hata Yoichi - - 2003
BACKGROUND/PURPOSE: There have, hitherto, been no anatomical investigations of the intramural venous system of the duodenum. METHODS: Intramural longitudinal anastomoses of the straight veins in the human duodenum were investigated, using 15 latex resin cast specimens. RESULTS: The venous tree (with a straight vein as the trunk) was developed well, ...
Nyirády Peter - - 2002
OBJECTIVES: To introduce a useful technique for identifying any collateral veins during laparoscopic varicocele operation and to evaluate our long-term results with this technique after 100 cases. METHODS: A new method was used to detect an incidental collateral vein. During surgery the patient was placed in anti-Trendelenburg position after introducing ...
Shukla Vershalee - - 2002
This is the first of two articles designed to provide user-friendly schematics of the adult dural vascular anatomy. It describes the intrinsic meningeal arteries and veins of the skull base/cranial vault and the dural partitions (the tentorium, falx cerebelli, and falx cerebri). The discussion of this anatomy is supplemented by ...
Stratton Nicolas J - - 2002
Proximal interphalangeal joint arthroplasties were performed on 40 toes of 10 fresh-frozen cadaveric feet. Twenty toes had a transverse elliptical incision of skin and extensor mechanism, and 20 had a longitudinal incision with transverse excision of extensor mechanism. Venous anatomy, including damage to the dorsal collateral veins, was noted. In ...
Kubo Tateki - - 2002
The internal jugular vein has been the preferred recipient vein in head and neck microsurgical reconstruction. However, recent reports have demonstrated internal jugular vein occlusion after functional neck dissection. The purpose of this article is to demonstrate and discuss the possibility of recipient internal jugular vein occlusion after free tissue ...
Ratanakorn Disya - - 2002
The use of agitated air and saline, injected intravenously, combined with monitoring of the middle cerebral artery using transcranial Doppler sonography, is an effective method for detecting paradoxic cerebral embolism caused by right-to-left intracardiac shunting. This technique is particularly useful in patients with a patent foramen ovale. In patients without ...
Yamaguchi Shigeki - - 2002
PURPOSE: This study was designed to describe the precise venous anatomy of the right colon, which is especially important for laparoscopic right hemicolectomy. METHODS: Fifty-eight adult cadavers were dissected to define the three major venous tributaries of the right colon: the ileocolic vein, right colic vein, and middle colic vein. ...
Hayashi Hideaki - - 2002
OBJECTIVE: To investigate whether prepuncture ultrasound evaluation of vascular anatomy facilitates internal jugular vein cannulation compared with landmark-guided puncture. DESIGN: Prospective randomized study. SETTING: Single community hospital. PARTICIPANTS: Adult patients undergoing general anesthesia (n = 240). INTERVENTIONS: The right internal jugular vein was cannulated using either anatomic landmarks or prepuncture ...
Schummer Wolfram - - 2002
We report an unusual case of fatal intracranial hypertension following tracheostomy due to the obstruction of the internal jugular veins (left side: thrombosis after central venous cannulation, right side: hypoplastic vein) and their collaterals. Principal cerebral outflow through the internal jugular veins can be substituted by the internal and external ...
Akyürek Mustafa - - 2002
The authors present a new model for microsurgical training of venous anastomosis-namely, the dorsal penile vein of the rat. In 12 male Wistar rats weighing 220 to 290 g, the anatomy of the dorsal penile vein was studied by dissection and histology. Anatomic dissection studies revealed that the dorsal penile ...
Belenky Alexander - - 2002
OBJECTIVE: Kidney donation is associated with ligation of the ovarian vein and is comparable to ovarian vein embolization. We evaluated the incidence, morbidity, and clinical outcome of ovarian varices in healthy female kidney donors before and 6 months after nephrectomy. MATERIALS AND METHODS: Between 1994 and 2001, 273 healthy female ...
Groves A M - - 2002
Inspection of the superficial veins of the abdominal wall has long been a routine part of the physical examination. To date, radiologists have given such veins rather scant attention, even though they are elegantly demonstrated by CT. We have performed a study of 21 patients with cirrhosis, 7 patients with ...
Conkbayir Işik - - 2002
Occlusion or stenosis of the superior vena cava, the innominate vein, or both is an important clinical problem that requires prompt diagnosis. To confirm a suspected occlusion, imaging studies revealing the obstruction and the presence of collateral venous routes are needed. Color Doppler sonography (CDUS) is widely used to evaluate ...
Tay Kiang-Hiong - - 2002
The presence of variant venous anatomy may increase the technical difficulty of percutaneous varicocele embolization. The authors review their experience performing venography of the left spermatic vein and varicocele embolization in 18 men with circumaortic left renal veins. Selective catheterization of the left spermatic vein was achieved in all but ...
Ikezaki Kiyonobu - - 2002
Medullary venous malformation (MVM) is rare in the temporal lobe, and the radiologic characteristics of temporal MVM have not yet been clarified. In 12 previously reported cases with satisfactory angiographic or magnetic resonance information as well as two newly reported here, we analyzed the specific location and hemodynamics of temporal ...
Sèbe P - - 2002
This study of 88 adrenal venograms looked at the anatomical variations in the drainage of the principal adrenal veins. These were seen with a frequency of 5% on the right and 6% on the left. On the right, we have described ectopic anastomoses with the hepatic veins. On the left, ...
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