A New Formula-Based Measurement Guide for Optimal Positioning of Central Venous Catheters

2004 ◽  
Vol 9 (2) ◽  
pp. 80-85 ◽  
Author(s):  
Phllip Lum
Keyword(s):  
Central Venous Catheter ◽  
Venous Catheter ◽  
Central Venous Catheters ◽  
Central Venous ◽  
Access Site ◽  
Insertion Sites ◽  
Tip Position ◽  
A Prospective Study ◽  
New Formula ◽  
Percutaneous Insertion

Abstract Purpose: To validate the formula-based central venous catheter (CVC) length measurement “tailored” to individual's height and access site for predicting optimum SVC tip position. Method: A prospective study of 3 percutaneous insertion sites (PICC, SCC and JC). Formula-based “LUM'S CVC MEASUREMENT GUIDE” was used to determine the catheter length. Results: Overall, 97% (373) of the total 382 insertions were successfully placed with CVC tip in the distal SVC (SVC between carina and atrio-cava junction) location. Conclusion: The “tailored fit” formula to individual patient height is a reliable tool to predict CVC length. Appropriate catheter length can greatly reduce the guesswork and possibility of complications related to tip malposition.

Central Venous Catheter and the Hemodialysis Patient: A Difficult Symbiosis

2002 ◽  
Vol 3 (2) ◽  
pp. 64-73 ◽  
Author(s):  
S. Mandolfo ◽  
W. Piazza ◽  
F. Galli
Keyword(s):  
Blood Flow ◽  
Central Venous Catheter ◽  
Hemodialysis Patient ◽  
Venous Catheter ◽  
Hemodialysis Patients ◽  
Central Venous Catheters ◽  
Chronic Hemodialysis ◽  
Central Venous ◽  
Tip Position ◽  
Ultrasonographic Guidance

In the last ten years, tunneled central venous catheters (pCVCs) have been increasingly utilized in chronic hemodialysis patients, sometimes in the place of fistulas. They have gained popularity for their unquestioned advantages, such as the possibility for immediate use. However, several problems have emerged following their diffusion. In this paper we review the main complications of pCVCs. Complications connected with insertion are generally due to an inaccurate approach to the vein. Ultrasonographic guidance has partially solved this problem and EC-ECG (endocavitary ECG) allows an accurate positioning of the tip. Infections, venous and/or pCVCs) thrombosis and dysfunctions are the most important catheter-related complications. Infections may occur with and without symptoms of systemic illness. Early diagnosis and appropriate antibiotic treatment are essential for saving the catheter. The pathogenesis of infections and strategies for prevention are discussed. Thrombosis and stenosis are well known complications of subclavian and jugular catheterization. In uremic patients, for temporary use, we suggest using the femoral position. Protocols for application of thrombolytic agents in pCVCs are considered. Dysfunction, defined as the failure to maintain a blood flow of at least 250 ml/min, remains the Achilles’ heel of the system. Adequate look therapy and tip position are only two basic aspects. In conclusion, a pessimistic outlook on the matter could lead us to consider that the advantages of catheter use are far outweighed by the disadvantages. However, we cannot avoid using central venous catheters in our dialysis units and a great challenge awaits both physicians and manufactures in the coming years.

A bedside rescue method for retrieving retained guidewires: The ‘Suck Out’ technique

2020 ◽  
pp. 112972982094345
Author(s):  
Maryanne Z A Mariyaselvam ◽  
Vikesh Patel ◽  
Adam Sawyer ◽  
James A Richardson ◽  
Jonathan Dean ◽  
...  
Keyword(s):  
Central Venous Catheter ◽  
Venous Catheter ◽  
Central Venous Catheters ◽  
Patient Harm ◽  
Central Venous ◽  
Exact Test ◽  
The United Kingdom ◽  
Catheter Tip ◽  
Never Event ◽  
Benchtop Model

Background: Central venous catheter guidewire retention is classed as a ‘never event’ in the United Kingdom, with the potential for significant patient harm. If the retained guidewire remains within the central venous catheter lumen, bedside techniques may facilitate guidewire retrieval. However, these techniques may be ineffective if the guidewire has already passed below skin level. We investigated a novel ‘suck out’ technique for bedside guidewire retrieval and compared this against traditional retrieval methods. Methods: Simulation 1: in a benchtop model, seven different central venous catheters had their corresponding guidewire placed in the last 2 cm of the catheter tip which was immersed horizontally in fluid. A 50-mL syringe was attached to the distal lumen central venous catheter hub and suction applied for 5 s, and the distance of guidewire retraction was recorded. Simulation 2: a central venous catheter guidewire was intentionally retained within the catheter at either 5 cm above or below skin level in a pigskin model. Simple catheter withdrawal, catheter clamping withdrawal and the ‘suck out’ method were compared for efficacy using Fisher’s exact test. Results: Simulation 1: retained guidewires were retracted by 13 cm on average. Simulation 2: when guidewires were retained 5 cm above skin level, all retrieval methods were 100% effective; however, when retained 5 cm below skin level, simple catheter withdrawal was ineffective, clamping and withdrawal was only 10% effective and the ‘suck out’ technique was 90% effective (p < 0.001). Conclusion: The ‘suck out’ technique can effectively retract guidewires retained within central venous catheter lumens and demonstrates superiority over traditional methods of retained guidewire extraction in simulated models.

Precision in Central Venous Catheter Tip Placement: A Review of the Literature

2010 ◽  
Vol 15 (3) ◽  
pp. 112-125 ◽  
Author(s):  
Russell Hostetter ◽  
Nadine Nakasawa ◽  
Kim Tompkins ◽  
Bradley Hill
Keyword(s):  
Central Venous Catheter ◽  
Selection Criteria ◽  
Weighted Average ◽  
Venous Catheter ◽  
Central Venous ◽  
Catheter Tip ◽  
Tip Position ◽  
Landmark Technique ◽  
The Ideal

Abstract Background: Long term venous catheters have been used to deliver specialized therapies since 1968. The ideal tip position of a central venous catheter provides reliable venous access with optimal therapeutic delivery, while minimizing short-and long-term complications. Ideal position limits have evolved and narrowed over time, making successful placement difficult and unreliable when depending exclusively on the landmark technique. Objective: To review and analyze contemporary literature and calculate an overall accuracy rate for first attempt placement of a PICC catheter in the ideal tip position. Methods: Key PICC placement terms were used to search the database PubMED-indexed for MEDLINE in June and October, 2009. The selection of studies required: a patient cohort without tip placement guidance technology; a documented landmark technique to place catheter tips; data documenting initial catheter placement and, that the lower third of the SVC and the cavo-atrial junction (CAJ) were included in the placement criteria. With few exceptions, articles written between 1993 and 2009 met the stated selection criteria. A composite of outcomes associated with tip placement was analyzed, and an overall percent proficiency of accurate catheter tip placement calculated. Results: Nine studies in eight articles met the selection criteria and were included for analysis. Rates of first placement success per study ranged from 39% to 75%, with the majority (7/9) being single center studies. The combined overall proficiency of these studies calculated as a weighted average was 45.87%.

scholarly journals Bedside ultrasound as a screening test for the diagnosis of catheter-related bloodstream infection (CRBI)

2021 ◽  
Author(s):  
Chiara de Sio ◽  
Mario Venafro ◽  
Giampiero Foccillo ◽  
Riccardo Nevola ◽  
Lucio Monaco
Keyword(s):  
Central Venous Catheter ◽  
Bloodstream Infections ◽  
Signs And Symptoms ◽  
Venous Catheter ◽  
Central Catheter ◽  
Central Venous ◽  
Roc Curve Analysis ◽  
Suspected Infection ◽  
Intravascular Devices ◽  
A Prospective Study

Abstract Purpose Between 15 and 30% of all nosocomial bacteremias and sepsis are associated with the use of intravascular devices. Catheter-related bloodstream infections (CRBI) are infections in which the organism identified in the blood is also present on the tip of the catheter itself or in a blood sample taken through it. The aim of the study was to evaluate the role of ultrasound in the diagnosis of infections related to the use of central catheters. Methods Between January 2018 and June 2019, we carried out a prospective study on 36 patients with a central catheter, such as a central venous catheter (CVC), a central catheter with peripheral insertion (PICC), or a fully implanted central venous catheter (PORT-a-cath) and who had signs and symptoms of infection. These patients were submitted to an ultrasound of the catheter upon arrival in the ward in case of suspected infection, or at the time of the onset of signs and symptoms of infection (if these arose during hospitalization). Patients with a central catheter but without signs and symptoms of infection were not included in the study. The end point of the study was to evaluate sensitivity (SENS), specificity (SPEC), positive and negative predictive value (PPV-NPV) and overall diagnostic accuracy (ODA) of ultrasound in the diagnosis of CRBI through Receiver Operating Characteristic (ROC) curve analysis. Results US showed a SENS of 94%, a SPEC of 84%, a PPV of 84%, an NPV of 94% and an ODA of 88.8% for the diagnosis of CRBI. Conclusions Preliminary data from our study show that US of intravascular devices has a high SENS and SPEC in the diagnosis of CRBI, and can, therefore, be used as a valid tool to decide whether to remove the device early or leave it in place.

Risk factor identification and predictive models for central line requirements for patients on vasopressors

2021 ◽  
pp. 0310057X2110242
Author(s):  
Adrian D Haimovich ◽  
Ruoyi Jiang ◽  
Richard A Taylor ◽  
Justin B Belsky
Keyword(s):  
Risk Factors ◽  
Intensive Care Unit ◽  
Logistic Regression ◽  
Intensive Care ◽  
Central Venous Catheter ◽  
Single Agent ◽  
Composite Endpoint ◽  
Venous Catheter ◽  
Central Venous Catheters ◽  
Central Venous

Vasopressors are ubiquitous in intensive care units. While central venous catheters are the preferred route of infusion, recent evidence suggests peripheral administration may be safe for short, single-agent courses. Here, we identify risk factors and develop a predictive model for patient central venous catheter requirement using the Medical Information Mart for Intensive Care, a single-centre dataset of patients admitted to an intensive care unit between 2008 and 2019. Using prior literature, a composite endpoint of prolonged single-agent courses (>24 hours) or multi-agent courses of any duration was used to identify likely central venous catheter requirement. From a cohort of 69,619 intensive care unit stays, there were 17,053 vasopressor courses involving one or more vasopressors that met study inclusion criteria. In total, 3807 (22.3%) vasopressor courses involved a single vasopressor for less than six hours, 7952 (46.6%) courses for less than 24 hours and 5757 (33.8%) involved multiple vasopressors of any duration. Of these, 3047 (80.0%) less than six-hour and 6423 (80.8%) less than 24-hour single vasopressor courses used a central venous catheter. Logistic regression models identified associations between the composite endpoint and intubation (odds ratio (OR) 2.36, 95% confidence intervals (CI) 2.16 to 2.58), cardiac diagnosis (OR 0.72, CI 0.65 to 0.80), renal impairment (OR 1.61, CI 1.50 to 1.74), older age (OR 1.002, Cl 1.000 to 1.005) and vital signs in the hour before initiation (heart rate, OR 1.006, CI 1.003 to 1.009; oxygen saturation, OR 0.996, CI 0.993 to 0.999). A logistic regression model predicting the composite endpoint had an area under the receiver operating characteristic curve (standard deviation) of 0.747 (0.013) and an accuracy of 0.691 (0.012). This retrospective study reveals a high prevalence of short vasopressor courses in intensive care unit settings, a majority of which were administered using central venous catheters. We identify several important risk factors that may help guide clinicians deciding between peripheral and central venous catheter administration, and present a predictive model that may inform future prospective trials.

Aneurysm of Arteriovenous Fistula in Uremic Patients: Is Endograft a Viable Therapeutic Approach?

2002 ◽  
Vol 3 (2) ◽  
pp. 85-88 ◽  
Author(s):  
P.M. Allaria ◽  
E. Costantini ◽  
A. Lucatello ◽  
E. Gandini ◽  
F. Caligara ◽  
...  
Keyword(s):  
Central Venous Catheter ◽  
Arteriovenous Fistula ◽  
Vascular Access ◽  
Venous Catheter ◽  
Good Alternative ◽  
Central Venous ◽  
Arteriovenous Fistulas ◽  
Risk Of Rupture ◽  
Arterial Aneurysms ◽  
Percutaneous Insertion

One of the complications of arteriovenous fistulas in chronic hemodialyzed patients is the onset of an aneurysm which can be at risk of rupture. Traditional surgical repair is not always feasible and may not be successful in these cases, leading therefore to the loss of a functioning vascular access and requiring in any case the temporary use of a central venous catheter to allow regular hemodialysis sessions. We applied to this kind of aneurysm the same experience developed in the management of major arterial aneurysms and we considered endografting repair a good alternative in this case. In this paper we present the successful treatment of an arteriovenous fistula aneurysm using that technique. A distal radio-cephalic arteriovenous fistula in one of our patients presented an aneurysm with high risk of rupture. The endografting repair with percutaneous insertion of a Wallgraft™ endoprosthesis was well tolerated and the vascular access could be used the day after, without the need for a central venous catheter insertion.

A prospective study of a new protocol for ‘in situ’ diagnosis of central venous catheter related bacteraemia

1993 ◽  
Vol 12 (2) ◽  
pp. 103-107 ◽  
Author(s):  
M. Segura ◽  
L. Lladó ◽  
X. Guirao ◽  
M. Piracés ◽  
R. Herms ◽  
...  
Keyword(s):  
Central Venous Catheter ◽  
Prospective Study ◽  
Venous Catheter ◽  
Central Venous ◽  
A Prospective Study
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