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PubMedDate not supplied

Examining the care of patients with peripheral venous cannulas.

The purpose of this study was to examine nursing issues in the care of patients with peripheral venous cannulas (PVCs) with particular focus on duration of cannulation in order to minimize risk of infection. A tentative practice model evolved from this study. The research approach used involved qualitative methods utilizing grounded theory. Data analysis produced one tentative core category, 'effectiveness'. This allowed for the development of a 12-dimensional model explaining the nursing function against four interrelated models: development; practice; organizational support; effectiveness. Related to these four models were key professional aspects of 'autonomy-control' and 'knowledge-practice'. Interpretative findings from the study were plotted against this model, giving a graphic representation and highlighting strengths and weaknesses of nursing practice. Aspects requiring improvement included: PVC care as a syllabus subject; nursing practice; autonomy and control issues; shared responsibility problems; documentation systems; goal setting; outcomes. The policy, nurses' knowledge of PVC care and identification of critical issues were considered satisfactory. The model incorporates 12 important dimensions associated with effective practice that can be applied to nursing at different levels - clinical practice, education, management - and to other disciplines, providing a framework for narrowing the theory-practice gap and improving patient care.

Catheterization, Peripheral↗

PubMedDate not supplied

Peripherally inserted central catheters (PICCs) in the CF population: one center's experience.

Cystic fibrosis (CF) is a common fatal genetic disorder characterized by chronic pulmonary infections, some of which require intravenous (i.v.) antibiotics. Peripherally inserted central catheters (PICCs) have proven to be an effective means of i.v. delivery in a variety of populations. An evaluation of the effectiveness of the use of PICCs for patients at a CF center in New England was conducted over a 25-consecutive month period. During this time, 61 PICCs were placed in 32 patients with CF requiring i.v. antibiotics. The catheters were in place for a median of 15 days (range 1-155 days). The total number of catheter days in this series was 1,139. Although no serious complications were encountered, minor complications or technical problems occurred in 18 (29.5%) of the 61 catheters. Complications included external breaks in the catheters, shoulder pain, phlebitis, catheter occlusion, accidental dislodgement, local irritation at the insertion site, and yeast infection at the insertion site. No long-term sequelae resulted, and the rate of i.v. antibiotic completion with this mode of i.v. access was high. As a result of the evaluation, PICC access remains the standard of care at this institution for patients with CF requiring i.v. antibiotics for pulmonary exacerbations.

Adolescent↗

PubMed2006

Peripherally inserted central venous catheter-associated thrombosis: retrospective analysis of clinical risk factors in adult patients.

BACKGROUND: Peripherally inserted central catheters (PICC) are common venous access devices. Clinical conditions and therapies that increase the risk of PICC-associated thrombosis have not been studied. METHODS: We performed a retrospective case-control analysis of all adult patients who underwent placement of a PICC at our hospital over a three-year period (n = 1296). Clinical variables examined were indication for PICC placement, active cancer treatment, history of DVT, diabetes mellitus, and use of prophylactic anticoagulation. RESULTS: The overall incidence of PICC-associated DVT was 2% (n = 27). Active cancer therapy was significantly associated with PICC-associated DVT (OR 3.5, 95% CI 1.3-9.8). The use of prophylactic anticoagulation did not reduce this risk. CONCLUSIONS: Patients who suffered a PICC-associated DVT were more likely to be undergoing treatment for cancer. This risk was not lowered by the use of prophylactic anticoagulation. These results suggest a need for prospective studies on effective anticoagulation for patients at high risk for PICC-associated DVT.

Adult↗

PubMed1988

Percutaneous removal of atheromatous plaques in peripheral arteries.

The peripheral Simpson "atherectomy" catheter was used to treat 21 patients with a total of 41 stenotic lesions (5 iliac, 35 superficial femoral, and 1 popliteal). 4 lesions were totally occluded and 16 (39%) were calcified. The mean (SD) degree of obstruction was reduced from 82.7 (14) to 21 (16)% (p less than 0.0001). Mean (SD) standardised walking distance increased from 79.9 (71.9) to 152.6 (89.7) m (p less than 0.0001); doppler index improved from 0.58 (SD 0.17) to 0.81 (0.16) (p less than 0.0001); performance on bicycle stress test rose from 276.3 (range 1-1100) to 584.8 (2-2250) watt-min; and index for 201Tl-scintigraphy of the lower leg increased from 0.68 (0.28) to 0.91 (0.36) (p less than 0.02). The improvement has been maintained for 6 months, the degree of stenosis on repeat angiography at 2-6 months (n = 14 lesions) being 20.7 (SD 13.7)% (unchanged from early post-treatment values). The only restenosis has been corrected by a repeat of the percutaneous procedure.

Aged↗

PubMed2004

Accidental catheter removal in critically ill patients: a prospective and observational study.

INTRODUCTION: The importance of accidental catheter removal (ACR) lies in the complications caused by the removal itself and by catheter reinsertion. To the best of our knowledge, no studies have analyzed accidental removal of various types of catheters in the intensive care unit (ICU). The objective of the present study was to analyze the incidence of ACR for all types of catheters in the ICU. METHODS: This was a prospective and observational study, conducted in a 24-bed medical/surgical ICU in a university hospital. We included all consecutive patients admitted to the ICU over 18 months (1 May 2000 to 31 October 2001). The incidences of ACR for all types of catheters (both per 100 catheters and per 100 catheter-days) were determined. RESULTS: A total of 988 patients were included. There were no significant differences in ACR incidence between the four central venous access sites (peripheral, jugular, subclavian and femoral) or between the four arterial access sites (radial, femoral, pedal and humeral). However, the incidence of ACR was higher for arterial than for central venous catheters (1.12/100 catheter-days versus 2.02/100 catheter-days; P < 0.001). The incidences of ACR/100 nonvascular catheter-days were as follows: endotracheal tube 0.79; nasogastric tube 4.48; urinary catheter 0.32; thoracic drain 0.56; abdominal drain 0.67; and intraventricular brain drain 0.66. CONCLUSION: We found ACR incidences for central venous catheter, arterial catheter, endotracheal tube, nasogastric tube and urinary catheter that are similar to those reported in previous studies. We could not find studies that analyzed the ACR for thoracic, abdominal, intraventricular brain and cardiac surgical drains, but we believe that our rates are acceptable. To minimize ACR, it is necessary to monitor its incidence carefully and to implement preventive measures. In our view, according to establish quality standards, findings should be reported as ACR incidence per 100 catheters and per 100 catheter-days, for all types of catheters.

Accidents↗

PubMedDate not supplied

Peripheral venous catheter-related inflammation. A randomized prospective trial.

BACKGROUND: Peripheral venous catheter-related inflammation (PVCRI) is a serious health and economic issue. It is mainly linked to peripheral venous catheter (PVC) duration and other risk factors. METHODS: PVCRI was prospectively evaluated in a 3 month-study according to PVC duration. Other risk factors were also studied such as age, gender, diabetes, intravenous steroids and antibiotics. 221 patients admitted to 3 different departments in a university hospital were randomized to undergo a 72 hours versus 96 hours PVC. The primary endpoint was to evaluate if this prolonged duration would increase the incidence of lymphangitis. The secondary endpoints were to evaluate if other risk factors such as age, gender, diabetes, intravenous steroids and antibiotics, have a direct impact on lymphangitis. Fever, local inflammatory signs and date of occurrence have been noted by two different nurses. The Stata 8.0 program, and the Pearson chi-square test to compare percentages (alpha = 0.05) were used. RESULTS: PVCRI occurred in 20.4% of all studied patients. PVCRI incidence did not differ between the patients who kept the catheter for 72 hours and those who kept it for 96 hours, but we found a significantly increasing incidence of PCVRI while comparing 24 hours versus 48 hours duration and 24-48 hours duration versus 72-96 hours duration respectively. Age, as well as intravenous antibiotherapy showed to be a significant risk factor for PVCRI. As for diabetic patients, there was a trend towards a higher incidence of PVCRI. Intravenous steroids showed to have a beneficial effect. It is to be noted that the rate of PVCRI was significantly higher in the internal medicine/infectious diseases department compared to the two other departments. CONCLUSION: No difference on PVCRI risk was found between 72 and 96 hours catheter duration. However the risk seems to increase between the first and the third day of catheterization. We suggest that an adapted duration of the PVC to the patient risks would be more cost-effective.

Adult↗

PubMed2005

The epidemiology of peripheral vein complications: evaluation of the efficiency of differing methods for the maintenance of catheter patency and thrombophlebitis prevention.

BACKGROUND AND AIMS: Peripheral vein catheter patency and infusion thrombophlebitis remains a significant problem in everyday clinical practice. The aim of the study was to investigate the epidemiology of peripheral vein complications and to evaluate three different methods for the maintenance of peripheral vein catheter patency and the prevention of vein thrombophlebitis. METHODS: A total of 300 post-operative patients undergoing elective orthopaedic surgery were prospectively studied. Patients were divided into three groups: controls--catheters not flushed following drug administration; saline group--the catheters flushed with 3 mL of normal saline 0.9% after each catheter use; heparin group--the catheters flushed with 3 mL of 100-U/mL heparin in normal saline 0.9% after each catheter use. RESULTS: Complications occurred in 36% of the patients and the incidence of thrombophlebitis was 8% and only 4% in the control group. In the normal saline group there was a significant increase in total complications and obstruction together with thrombophlebitis as compared with the control group. Kaplan-Meier curves demonstrate that the control group had a significantly higher proportion of catheters without complications. CONCLUSIONS: The use of normal saline solutions in post-operative patients thus should be avoided for catheter maintenance. In patients receiving low molecular weight heparin, no intravenous flushing should be used for preventing catheter obstruction or thrombophlebitis in order to reduce costs and nursing workload.

Catheterization, Peripheral↗

PubMed1993

Does peripheral angioplasty compromise limb blood flow?

Isotope limb blood flow studies were carried out using balloon, laser and Kensey catheter techniques to assess the outcome of peripheral angioplasty. Limb blood flow and Doppler ankle-brachial pressure measurements were obtained before angioplasty and at 6 months after angioplasty in a total of 101 angioplastied limbs: A fall in limb blood flow at 6 months was seen in 17% of the angioplastied limbs with no significant difference in the figures for the different types of angioplasty. Limb blood flow was also measured in 53 contralateral untreated limbs, approximately half of the patient group having both legs angioplastied. 25% of untreated limbs showed a fall in limb blood flow. Significantly more of the untreated limbs showed a fall in limb blood flow at 6 months where the contralateral, treated limb did not improve as a result of the angioplasty compared with those patients where the angioplastied leg improved. These results suggest that a lack of improvement in blood flow in the angioplastied limb may not result from failure of the angioplasty but may be the result of some factor, or combination of factors, which adversely affects both the angioplastied and the untreated leg in some patients.

Angioplasty↗

PubMed1991

Peripheral parenteral nutrition: effect of a standardized compounded mixture on infusion phlebitis.

The incidence and severity of infusion phlebitis was evaluated prospectively in 142 surgical patients who received peripheral parenteral nutrition (PPN) for a total of 700 days. In a first study phase 83 patients were given PPN for a total of 424 days. All nutrient solutions were delivered over a 12-h period from a 3-litre bag and the infusion sites rotated daily. These methods resulted in an incidence of phlebitis of 18 per cent, 75 per cent of the patients being fed successfully by PPN until resumption of oral nutrition. In an attempt to assess the importance of the method of delivering nutrient solutions, the next 59 patients were randomized to receive PPN as a compounded mixture or by a conventional technique with simultaneous infusion from separate bottles. Infusion phlebitis was significantly more frequent (P less than 0.001) in patients infused with separate bottles. There was no difference between the groups with regard to duration of nutrition or the need to establish central venous access. We conclude that PPN is a safe and cost-effective means of providing total parenteral nutrition in most surgical patients. The use of compounded mixtures significantly reduces the incidence of phlebitis without increasing total costs.

Aged↗

PubMed1999

Initial experience with Healthport miniMax and other peripheral arm ports in patients with advanced gastrointestinal malignancy.

While central ports are located at the chest, peripheral ports (PP) are inserted at the patients' forearms. Two new PPs (Healthport miniMax((R)) and Bard Titan Low Profile Port) and two well-established types (Port-A-Cath((R)) P.A.S. Port and PeriPort(TM) peripheral access system) were tested. 125 patients were given the choice between PP and chest ports, and 100 of them chose PP. PP were inserted in patients suffering from gastrointestinal malignancies (n = 95), AIDS (n = 3) or Crohn's disease (n = 2). The first 30 patients were prospectively monitored by repeated color-coded duplex sonography examinations in order to evaluate clinically inapparent thromboses. Easy percutaneous needle puncture as early as 1 day after surgery was possible using innovative ports with large septa. The following complications arose during 12,688 catheter placement days: difficult implantation (n = 5), intolerable pain at the insertion site (n = 1), port erosion of the skin (n = 1), catheter leaks (n = 4), disconnection of the catheter from the port (n = 1), systemic infections (n = 4), local infections (n = 6) and symptomatic deep vein thrombosis (n = 8) despite anticoagulation in 1 of these. Only systemic infections and intolerable pain resulted in PP explantation (n = 5); other complications were easily dealt with. No serious or life-threatening complications occurred.

Adult↗

PubMed1992

The idle intravenous catheter.

OBJECTIVE: To assess the prevalence of idle peripheral intravenous (IV) catheters (those without any therapeutic use) on regular-care medical wards. DESIGN: Observation, interviews, and chart review. SETTING: A university-affiliated VA medical center. PATIENTS: All 959 inpatients on 4 regular-care medical wards during a 6-week period, including 484 IV catheter episodes and 2983 patient-days of IV catheter use. MAIN OUTCOME MEASURE: Idle IV catheter use. RESULTS: Thirty-five percent of all IV catheter episodes (95% CI, 32% to 38%) had 2 or more consecutive idle days. In only 6 of these (1%) could a specific reason for the catheter be determined. Seventeen percent of all patients on regular-care medical wards (CI, 15% to 19%) had an idle IV catheter for 2 or more consecutive days. Twenty percent of all patient-days of IV catheter use were idle (CI, 19% to 21%). CONCLUSIONS: Our data suggest that IV are frequently used unnecessarily. Future efforts to reduce IV catheter complication rates should focus on reducing unnecessary use as well as on improving techniques to reduce infection rates when use is appropriate.

Catheterization, Peripheral↗

PubMed2003

Life span of peripheral intravenous cannula in a neonatal intensive care unit of a developing country.

The use of peripheral intravenous cannulas (IVCs) in the care of sick newborns is a common practice. IVCs, priced five times higher than conventional steel needles, can be more cost effective if insight is available on the variables affecting their life span in situ. The present report summarizes the efforts made to ascertain these factors in a neonatal intensive care unit (NICU) of a developing country. A total of 186 peripheral IVCs (24-gauge teflon) were used in 78 newborns amounting to 7,583 hours of IV therapy (mean, 40.8 hr per cannula; range, 1-136 hr). Of these, 25 cannulas were removed selectively and 84, 50, 17, and 10 were removed for swelling, dislodgement/leakage, blockage, and local erythema, respectively. The median survival time of IVC as expressed by Kaplan-Meir survival analysis was 40 hours (SE, 2.49; 95% confidence interval, 35.12-44.88). Birth weight, gestation, application of splint, fluid and glucose infusion rate, site of cannulation, and administration of ampicillin, gentamicin, amikacin, vancomycin, phenobarbitone, blood products, or calcium gluconate did not influence the median life span of IVCs. Children receiving cefotaxime had a significantly lower median survival time as compared with those not receiving it (36 vs 47 hours, p =.007). Median survival time of IVCs in our set-up was comparable with those in developed countries and was not governed by the cannula or patient variables. Cefotaxime use led to decreased survival of IVCs; though this effect appeared to be related to the mode of administration rather than to the drug per se.

Catheterization, Peripheral↗

PubMed1995

Heparin versus normal saline as a peripheral line flush in maintenance of intermittent intravenous lines in obstetric patients.

OBJECTIVE: To compare heparin sodium (100 United States Pharmacopeia U/mL) with 0.9% sodium chloride for use in the maintenance of intermittent intravenous (IV) devices during pregnancy. METHODS: Women at 26-34 weeks' gestation who required serial phlebotomy were assigned randomly to heparin or normal saline flush, administered in a double-blind fashion. Catheter sites were examined and flushed with the study solution at least once every 6 hours. Partial thromboplastin times (PTTs) were measured at catheter insertion and 48 hours later. Statistical analysis was performed with Student t test, Mann-Whitney U test, Fisher exact test, log-rank, and X2 analysis, as appropriate. RESULTS: There was a significant increase in catheter patency rate at 48 and 72 hours in the heparin group (26 of 31 versus 17 of 33, and 21 of 31 versus nine of 33, respectively; P < .01). In addition, there was a significantly lower rate of catheter complications in the heparin group (four of 31 versus 13 of 33; P < .01). There were no differences in PTTs. CONCLUSION: During pregnancy, dilute heparin flush to maintain patency of intermittent IV site devices results in the following: a greater catheter patency rate at 48 and 72 hours after insertion of the catheter, a lower rate of catheter complications requiring therapy, and no alteration in PTT.

Adult↗

PubMed1989

Effects of porcine growth hormone on glucose metabolism of pigs: II. Glucose tolerance, peripheral tissue insulin sensitivity and glucose kinetics.

This study was conducted to determine whether the increase in serum glucose observed in pigs treated chronically with pGH is due to an increase in hepatic glucose output or to an impairment in glucose clearance. Barrows (n = 4 per treatment) were treated with pituitary derived pGH (ppGH), recombinant pGH analog (rpGH) or vehicle. Pigs were treated for 28 d by daily i.m. injections. Insulin tolerance and glucose tolerance tests (GTT) were performed on d 19 and 21, respectively, following treatment with pGH. Glucose turnover was quantified on d 28 using [6-3H]glucose. Chronically treating pigs with pGH resulted in a significant decrease (26%; P less than .05) in glucose clearance, as determined by the GTT. Glucose clearance was affected similarly by ppGH and rpGH. Intra-arterial glucose infusion markedly increased plasma insulin concentration in pGH-treated pigs. Peak plasma insulin response was 87% and 58%, respectively, higher (P less than .05) in ppGH- and rpGH-treated than in control pigs. Insulin infusion elicited a marked hypoglycemia in pigs; however, the extent and duration of hypoglycemia were significantly less in pGH-treated pigs (ppGH or rpGH). Glucose production rates were 23% higher (P = .085) in ppGH-treated than in control pigs. These results establish that the hyperglycemia induced by pGH is the result of an increase in hepatic glucose output and a concurrent impairment in glucose clearance.

Animals↗

PubMed1999

Axillary artery cannulation in type a aortic dissection operations.

BACKGROUND: Femoral arteries are the preferred site of peripheral cannulation for arterial inflow in type A aortic dissection operations. The presence of aortoiliac aneurysms, severe peripheral occlusive disease, atherosclerosis of the femoral vessels, and distal extension of the aortic dissection may preclude their utilization. Axillary artery cannulation may represent a valid alternative in these circumstances. METHODS: Between January 15, 1989, and August 20, 1998, in our institution, 22 of 152 operations (14.4%) for acute type A aortic dissection were performed with the use of the axillary artery for the arterial inflow. Axillary artery cannulation was undertaken in the presence of femoral arteries bilaterally compromised by dissection in 12 patients (54.5%), abdominal aorta and peripheral aneurysm in 5 patients (22.7%), severe atherosclerosis of both femoral arteries in 3 patients (13. 6%), and aortoiliac occlusive disease in 2 patients (9.1%). In all patients, distal anastomosis was performed with an open technique after deep hypothermic circulatory arrest. Retrograde cerebral perfusion was used in 9 patients (40.9%). RESULTS: Axillary artery cannulation was successful in all patients. The left axillary artery was cannulated in 20 patients (90.9%), and the right axillary artery was cannulated in 2 patients (9.1%). Axillary artery cannulation followed an attempt of femoral artery cannulation in 15 patients (68. 2%). All patients survived the operation, and no patient had a cerebrovascular accident. No axillary artery thrombosis, no brachial plexus injury, and no intraoperative malperfusion were recorded in this series. Two patients (9.1%) died in the hospital of complications not related to axillary artery cannulation. CONCLUSIONS: In patients with type A aortic dissection in whom femoral arteries are acutely or chronically diseased, axillary artery cannulation represents a safe and effective means of providing arterial inflow during cardiopulmonary bypass.

Adolescent↗

PubMed2002

Effect of skin disinfection with octenidine dihydrochloride on insertion site colonization of intravascular catheters.

BACKGROUND: We investigated the efficacy of two commercially available, alcohol-based antiseptic solutions in decontaminating the insertion site of central lines. One solution contained the bispyridine octenidine dihydrochloride. PATIENTS AND METHODS: Inpatients receiving either a central venous catheter (CVC) or a peripherally inserted central catheter (PICC) were alternately assigned to different skin disinfection regimens at the insertion site: (A) 0.1% octendine dihydrochloride with 30% 1-propanol and 45% 2-propanol, (B) 74% ethanol with 10% 2-propanol. Quantitative skin cultures were obtained from the insertion site at predetermined intervals. RESULTS: A total of 60 patients received 12 CVCs and 47 PICCs (no significant difference with respect to gender, age and catheter type). In total, 90 cultures were assessed in each group. The median colony-forming unit (cfu) counts per 24 cm(2) (group A vs B) were 2,270 vs 2,950 before, 20 vs 40 following and 860 vs 1,210 24 h after catheter insertion, respectively. A statistically significant difference in the efficacy of skin decontamination was seen between groups in culture set (3) and in the difference between culture sets (2) and (3) (Wilcoxon rank sum test). CONCLUSION: Octenidine/propanol appears to be more effective than alcohol (ethanol/propanol) alone in reducing microflora of the skin at the PICC/CVC insertion site over a 24-h period.

1-Propanol↗

PubMed1997

Influence of fine-bore catheter length on infusion thrombophlebitis in peripheral intravenous nutrition: a randomised controlled trial.

Previous studies indicated that the risk of thrombophlebitis associated with continuous infusion of intravenous nutrition (IVN) via peripheral veins was reduced when fine-bore catheters, inserted to 15 cm, were used in place of standard intravenous cannulas. An explanation has not been identified, but may be owing to the greater length of the catheters. A randomised controlled study was performed in which a standard nutritional solution was infused via 22G polyurethane catheters inserted to a length of either 5 cm or 15 cm. Catheters were reviewed twice each day and removed when complications occurred, or when IVN was no longer required. There was no significant difference in median time to thrombophlebitis or extravasation, or in daily risk of thrombophlebitis, between insertion lengths. Survival proportions were similar for each length at all times. Catheters inserted into cephalic veins were more prone to thrombophlebitis or extravasation (nine episodes, 14 catheters) than catheters inserted into basilic veins (five episodes, 24 catheters, P = 0.009). The survival proportion was at all times greater when catheter tips lay in basilic veins. Thus, the risk of thrombophlebitis or extravasation was not influenced by the length of catheter within the vein. However, the vein in which the catheter tip lay appeared to influence the development of morbidity.

Adult↗

PubMed2001

Central-venous access through the peripheral route in surgical neonates: an audit of 125 consecutive lines from a regional neonatal centre.

A long Percutaneous silastic IV line is frequently used in surgical neonates for infusion of hyperosmolar parenteral nutrition fluid into a central vein for several days without the need for operative insertion of a Broviac catheter or risks of direct puncture of a central vein. Our study was aimed at auditing the performance of 125 consecutive lines over a 2-year period. During this period, insertion was attempted in 125 babies; in 13 cases the line could not be inserted because of technical problems. The gestational ages varied between 25 and 41 weeks and weights between 630 g and 4.2 kg. Success did not appear to be related to the age or weight of the baby. The mean duration of complication-free performance was 22.4 days. There was a significant difference between the complication rate of lines inserted in the operating theatre versus those on the ward (P < 0.05). There was no significant increase in complications in lines used for over 4 weeks. The technique adopted by us for inserting these lines is likely to succeed in the majority of cases, including premature and small-for-dates babies. In our experience, lines inserted in the controlled theatre environment either before or after abdominal surgery performed better. The manufacturer's recommendation to electively change the line every 4 weeks needs further prospective evaluation.

Catheterization, Central Venous↗