(n.) The name of various instruments for passing along mucous canals, esp. applied to a tubular instrument to be introduced into the bladder through the urethra to draw off the urine.
Example Sentences:
(1) The catheter must be meticulously fixed to the skin to avoid its movement.
(2) Technical factors that account for increased difficulty in these patients include: problems with guide catheter impaction and ostial trauma; inability to inflate the balloon with adequate guide catheter support; and need for increased intracoronary manipulation.
(3) A new balloon catheter has been developed for angioplasty.
(4) Using mini-pigs with an indwelling vascular catheter, the pharmacokinetics of chloramphenicol were investigated in healthy and liver-damaged animals.
(5) Then the esophagogastric variceal network was thrombosed by means of a catheter introduced during laparotomy, which created a portoazygos disconnection.
(6) A quadripolar catheter was positioned either at the site of earliest ventricular activation during induced monomorphic ventricular tachycardia or at circumscribed areas of the left ventricle.
(7) External phonocardiography performed at the time of cardiac catheterization revealed that this loud midsystolic click disappeared whenever a catheter was positioned across the mitral valve.
(8) In the case presented, overdistension of a jejunostomy catheter balloon led to intestinal obstruction and pressure necrosis (of the small bowel), with subsequent abscess formation leading to death from septicemia.
(9) After 1 year, anesthesia was induced with chloralose and an electrode catheter placed at the right ventricular apex.
(10) Catheters containing 0% and 10% heparin were compared in each individual using ultrasound microflow velocimetry, permeability test, sequential determinations of activated partial thromboplastin time, heparin levels and generation of Fibrinopeptide A, beta thromboglobulin and Platelet factor 4.
(11) Of great influence on the results of measurements are preparation and registration (warm-up-time, amplification, closeness of pressure-system, unhurt catheters), factors relating to equipment and methods (air-bubbles in pressure-system, damping by filters, continuous infusion of the micro-catheter, level of zero-pressure), factors which occur during intravital measurement (pressure-drop along the arteria pulmonalis, influence of normal breathing, great intrapleural pressure changes, pressure damping in the catheter by thrombosis and external disturbances) and last not least positive and negative acceleration forces, which influence the diastolic and systolic pulmonary artery pressure.
(12) In one case an infection of the axillary region developed, which disappeared after removal of the catheter without any consequences.
(13) The complication might have been prevented by measurements of U and I, reflecting changes in impedance or by measurements of catheter tip temperature (T).
(14) In all patients a Tenckoff's catheter for peritoneal dialysis was introduced and peritoneal effusion extracted and measured.
(15) A fiberoptic flow-directed catheter inserted into the hepatic vein continuously measures hepatic venous oxygen hemoglobin saturation (ShvO2).
(16) The complex problems have been successfully managed with novel guiding catheter shapes and ultralow profile balloons.
(17) We present the results of giving continuous positive airway pressure (CPAP) via a single nasal catheter to 20 preterm infants.
(18) An intravenous catheter system for long-term (at least 6-8 weeks) parenteral nutrition of unrestrained rats is described.
(19) By using these larger catheters, the surgeon will not lose the option of using isosmotic preparations.
(20) Indirect methods to evaluate left ventricular function included the use of the Swan-Ganz catheter for pulmonary capillary wedge pressure measurement, systolic time intervals, and cardiac output.
Distend
Definition:
(v. t.) To extend in some one direction; to lengthen out; to stretch.
(v. t.) To stretch out or extend in all directions; to dilate; to enlarge, as by elasticity of parts; to inflate so as to produce tension; to cause to swell; as, to distend a bladder, the stomach, etc.
(v. i.) To become expanded or inflated; to swell.
Example Sentences:
(1) The combination of an over-distended uterus caused by a multiple-fetus pregnancy with therapeutic bed-rest may cause mechanical ileus.
(2) The epididymis appeared distended but without any visible sperms.
(3) In a noncontracting in vitro preparation of combined right and left atria we demonstrated by electron microscopy that, at 37 degrees C, transition from zero pressure to a physiological distending pressure of 5.1 mm Hg rapidly rendered atrial endocardial endothelium permeable to the macromolecular probes horseradish peroxidase (HRP; M(r), approximately 40,000) and wheat germ agglutinin-HRP (M(r), approximately 70,000); each probe was introduced at the atrial cavitary endocardial surface.
(4) However, separation of the capsule from the bony glenoid can be detected if a joint effusion is present to adequately distend the joint.
(5) The surgical treatment was ligation of the distended vein immediately distal to the fistula in the hand, and fistula function was preserved.
(6) Eight 'normal' gallbladders and six distended gallbladders from patients with carcinomatous obstruction of the common bile duct were examined.
(7) Immediately after the perforation, the patient entered into vascular collapse and respiratory distress, with a distended abdomen.
(8) As the mosquito ingests blood, sensory information from the distending abdomen reaches the mid gut via the nerve cord, brain and stomatogastric system.
(9) Chains of low-amplitude contractions (repeated small deviations from base line) were detected before parturition was induced, and these were more common at distended parts of the uterus.
(10) The rate of acquisition increased as a function of the distending pressure.
(11) Contracted and distended bladders incubated in 0.01 M sodium bicarbonate were compared to identical preparations experimentally incubated in 5 mM thioglycolic acid.
(12) Amplitude, duration and magnitude (as measured by planimetry) of anal relaxation elicited by rectal distensions were related to rectal distending volume (P less than 0.001).
(13) The periosteal fibroblasts of OI35 contained grossly distended rough endoplasmic reticulum consistent with the 53% reduction in collagen secretion by cultured dermal fibroblasts.
(14) Many virus particles were observed within distended cisternae of the endoplasmic reticulum 22 h p.i., and matrices of viroplasm were found close to developing virus particles.
(15) In orbital surgery, distended and thinned extraocular muscles were precisely localized and preserved anatomically and functionally.
(16) An enlarged cervical lymph node contained many abnormal plasma cells, which were distended with immunoglobulin; this material appeared to be released into lymph spaces when the cells burst.
(17) Among 52 unit discharges observed, 36 (69.2%) showed that electro-acupuncturing "Zusanli" point abolished the inhibitory reaction induced by distending stomach.
(18) (n = 18) in the presence of a distended bladder and 7.0 cm.
(19) The pathogenesis involves the release of kinins, the triggering of neurogen reflex mechanisms by distending the jejunum, the massive flow of fluid in jejunal lumen, the loss of the reservoir function of the stomach, and, possibly, the pathologic release of gastrointestinal hormones.
(20) A controlled study is in progress to delineate the optimum distending airway pressures at specific inspired oxygen concentrations in order to reduce the incidence of alveolar rupture to a minimum.