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At least 271 records · Page 15Linked to original sources
PubMed1996

Lower extremity angiography: improved image quality and outflow vessel detection with bilaterally antegrade selective digital subtraction angiography. A blinded prospective intraindividual comparison with aortic flush digital subtraction angiography.

RATIONALE AND OBJECTIVES: To introduce routine bilaterally antegrade selective stationary digital subtraction angiography (DSA), and prospectively compare it with unselective stationary DSA in the detection of calf arteries and assess additional time and complication rate. METHODS: Twenty-five patients received one unselective and two separate antegrade selective studies of each calf. Images were evaluated for image quality, number of depicted run-off vessels, and potential crural bypass recipient arteries. RESULTS: Bilaterally antegrade selective DSA was significantly superior in image quality and motion artifacts (P < 0.01). The number of adequately depicted run-off arteries per calf increased from 79% (2.37 of 3) to 96% (2.89 of 3) for legs with advanced peripheral vascular disease (PVD). Seventy-nine instead of 62 potential bypass recipients were identified (P = 0.002). Mean procedure time needed for selective catheterizations was 7 minutes. No adverse events were seen. CONCLUSIONS: Bilaterally antegrade selective DSA clearly is superior to aortic run-off DSA depicting tibial arteries. It requires comparatively small additional effort. Outflow vessel detection essentially is independent of advanced PVD.

Aged↗
PubMed1997

Research utilization: adhesive bandage dressing regimen for peripheral venous catheters.

BACKGROUND: This project used the process of research utilization to apply research knowledge to clinical practice for dressing peripheral intravenous (i.v.) catheters. METHOD: The project included (1) the review and synthesis of multiple research studies, (2) transformation of the research-based knowledge into a clinical protocol of use of adhesive bandage (AB) for dressing peripheral i.v. catheters, and (3) evaluation of the proportion of phlebitis as an outcome measure for comparison of peripheral i.v. catheter sites dressed with 2 x 2 inch gauze/tape or AB. Integral to the research utilization process was the use of planned change strategies. RESULTS: The proportion of phlebitis among peripheral i.v. catheters dressed with gauze/tape was 16.7% compared with 14.9% for AB. Antimicrobial ointment applied to the insertion site resulted in a higher proportion of phlebitis when used with an AB. CONCLUSION: This project used a research utilization framework to transfer research knowledge into clinical practice. To assure dissemination and implementation of the new practice, the use of ABs for dressing peripheral i.v.s was incorporated into hospital policy and procedure. In addition, the discontinuation of application of an antimicrobial ointment to peripheral i.v. sites was reinforced.

Adhesives↗
PubMed2006

Prospective evaluation of a peripherally administered three-in-one parenteral nutrition product in dogs.

OBJECTIVES: Peripheral parenteral nutrition is an option for short-term nutritional support in dogs which cannot be supported with enteral nutrition. The objective of this study was to examine the use of a three-in-one, 840 mOsmol/l peripheral parenteral nutrition product containing amino acids, lipids and glucose in separate compartments in dogs. METHODS: Nine dogs were administered the three-in-one product, and two dogs were administered the amino acid part of the product, via a peripheral vein. Dogs were monitored for mechanical and metabolic complications. RESULTS: Mechanical complications (apparent thrombus or thrombophlebitis) caused failure of infusion at a median of 36 hours. None of the dogs appeared to develop catheter-related sepsis. Using a 10-hour infusion period appeared to decrease the incidence of line failure. Mild and clinically non-significant hyperglycaemia was the only metabolic complication. In four of the dogs, serum folate, cobalamin and homocysteine concentrations were determined before and after peripheral parenteral nutrition administration. Oral and parenteral administration of methionine has been previously associated with lowered serum folate concentrations. Low serum folates and the subsequent hyperhomocysteinaemia have been associated with venous endothelial damage and venous thrombus in other species. Serum cobalamin also affects homocysteine metabolism. Median serum folate, cobalamin and homocysteine concentrations were not affected by the short-term administration of this three-in-one product. CLINICAL SIGNIFICANCE: Using the product for 24 hours/day may require catheter replacement due to line failure. Other than line failure, which may be improved by 10- to 12-hour infusion times, this product was found to be safe and practical for short-term peripheral parenteral nutrition in dogs.

Amino Acids↗
PubMedDate not supplied

Do heparin, hydrocortisone, and glyceryl trinitrate influence thrombophlebitis during full intravenous nutrition via a peripheral vein?

The aim of this prospective, randomized study was to determine if the addition of heparin and hydrocortisone, and the application of a topical glyceryl trinitrate patch over the catheter site (triple therapy) would results in a reduced incidence of thrombophlebitis during i.v. nutrition through a peripheral vein. Forty-six patients were randomized to receive either standard i.v. nutrition (i.v.N)(1200 mosm/kg) (control group, n = 23), or i.v.N plus triple therapy (study group, n = 23). The patient's arm was examined daily, and the catheter was removed if signs of thrombophlebitis were evident. The two groups were well matched in terms of age and gender, as well as indication for feeding and total days of i.v.N supplied. The catheters in the study group survived longer (p < .0001), and resulted in a lower incidence of thrombophlebitis (p < .05). The time of onset of thrombophlebitis was delayed in the study group (p < .0001). It is recommended that heparin, hydrocortisone, and a glyceryl trinitrate patch should be administered to all patients receiving i.v. nutrition via a fine-bore peripheral catheter.

Administration, Cutaneous↗
PubMed1994

Arterial oxygen desaturation during peripheral venous cannulation in children.

Arterial oxygen saturation (SpO2) was measured to determine oxygen desaturation during peripheral venous cannulation prior to induction of anaesthesia in 40 consecutive patients in each of the three age groups; Group I: 1-4 mo, Group II: 4-12 mo, Group III: 12-24 mo. Following premedication with oral trimeprazine tartarate 3 mg.kg-1, one to two hours before operation, baseline SpO2 was noted with child breathing room air. Continuous monitoring during peripheral venous cannulation was done and maximum decrease and duration of SpO2 < 90% was noted. Decreases in mean SpO2, 3.2 +/- 1.4 in Group I, 2.6 +/- 2.0 in Group II and 1.7 +/- 1.9 in Group III, were observed (P < 0.001). Desaturation > or = 4% was noted in 17 patients in Group I, ten patients in Group II and six patients in Group III. Two children, one each in Groups I and II, experienced SpO2 < 90% for 30 sec and 80 sec respectively. We conclude that clinically undiagnosed desaturation occurs during peripheral venous cannulation in healthy children. The authors suggest that continuous monitoring of SpO2 using pulse oximetry should be performed routinely during peripheral venous cannulation.

Anesthesia, General↗
PubMed2002

A dedicated intravenous cannula for postoperative use effect on incidence and severity of phlebitis.

A prospective, randomised, controlled clinical study was performed to compare the incidence and severity of postoperative peripheral venous thrombophlebitis associated with a single intravenous cannula used for both intra-operative and postoperative purposes, and two cannulae, one used intra-operatively and the other postoperatively. Sixty American Society of Anaesthesiologists (ASA) physical status I or II patients aged 18-65 years undergoing elective surgery were studied. The technique of cannula insertion was standardised. After surgery, the cannulation sites were examined daily by a blinded investigator for the presence and severity of thrombophlebitis using the Baxter Scale. The two groups were similar in terms of age, gender, weight, type and duration of surgical procedures, and drugs and fluids administered both intra-operatively and postoperatively. The proportion of patients that developed phlebitis was significantly less in the two cannulae group (26.1%) than in the single cannula group (63.3%) (p < 0.0001). The severity of phlebitis was greater in the single cannula group than in the two cannulae group. These results indicate that the use of a dedicated cannula for postoperative use decreases the incidence and severity of postoperative, peripheral, cannula-related phlebitis.

Adult↗
PubMed2001

Competent i.v. management, Part 2.

Implementation of fundamental principles and practice standards regarding peripheral i.v. therapy reduces the risks of patient injury and litigation.

Catheterization, Peripheral↗
PubMed1998

Benefit of heparin in peripheral venous and arterial catheters: systematic review and meta-analysis of randomised controlled trials.

OBJECTIVE: To evaluate the effect of heparin on duration of catheter patency and on prevention of complications associated with use of peripheral venous and arterial catheters. DESIGN: Critical appraisal and meta-analysis of 26 randomised controlled trials that evaluated infusion of heparin intermittently or continuously. Thirteen trials of peripheral venous catheters and two of peripheral arterial catheters met criteria for inclusion. MAIN OUTCOME MEASURES: Data on the populations, interventions, outcomes, and methodological quality. RESULTS: For peripheral venous catheters locked between use flushing with 10 U/ml of heparin instead of normal saline did not reduce the incidence of catheter clotting and phlebitis or improve catheter patency. When heparin was given as a continuous infusion at 1 U/ml the risk of phlebitis decreased (relative risk 0.55; 95% confidence interval 0.39 to 0.77), the duration of patency increased, and infusion failure was reduced (0.88; 0.72 to 1.07). Heparin significantly prolonged duration of patency of radial artery catheters and decreased the risk of clot formation (0.51; 0.42 to 0.61). CONCLUSIONS: Use of intermittent heparin flushes at doses of 10 U/ml in peripheral venous catheters locked between use had no benefit over normal saline flush. Infusion of low dose heparin through a peripheral arterial catheter prolonged the duration of patency but further study is needed to establish its benefit for peripheral venous catheters.

Adolescent↗
PubMedDate not supplied

Evaluation of saline for i.v. locks in children.

A practice change to saline for peripheral IV maintenance was evaluated in a large teaching hospital in the Midwest. Subjects (N = 126) were children over 28 days of age, with peripherally placed IVs. Group I (n = 68) were children randomly selected to receive saline flush in an experimental study. Group II (n = 58) consisted of children receiving the saline flush after the change in practice was made. There was no significant difference between groups for either of two measures of IV duration. The mean duration of the IV from first flush was 35.38 hours for Group I and 44.09 hours for Group II; the time from insertion to discontinuation was 60.86 and 60.03 hours respectively. Patient age, site location, number of flushes, number of irritating medications, and site complications did not differ significantly between groups. The results of this clinical evaluation support previous findings that saline is efficacious for maintaining the patency of peripheral IVs in children over 28 days of age.

Catheterization, Peripheral↗
PubMed1993

Measurement of cardiovascular and renal function in unrestrained hamsters.

We describe a preparation for measuring blood pressure, left ventricular end diastolic pressure, heart rate, and renal excretory variables (volume, electrolytes, glomerular filtration rate) in hamsters. The new approach offers an advantage over previously described methods by eliminating the problems associated with restraint. Hamsters were surgically implanted with venous and arterial catheters. A specially constructed bladder catheter, which allows flushing to minimize errors due to dead space and permits urine collection without restraining the animals, was also implanted. The hamsters were allowed to recover from surgery for 3 hours before being studied in a specially designed lucite housing unit. Representative results were obtained in cardiomyopathic and healthy hamsters.

Animals↗