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OBJECTIVES. Identify Various Central DevicesDetermine critical elements of care and maintenance of central venous linesIdentify potential complications related to central linesDemonstrate ideal dressing for central lines . Out line . IntroductionObjectivesTypes of central linesCentral line complicationsCentral line flow controlFlushes for central linesDressing changes for central linesBlood withdrawal from central linesChanging access/injection capsCare of the hickman site.
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1. WORKSHOP CENTRAL LINE CARE HUSNI ROUSAN
KING ABDULLAH UNIVERSITY HOSPITAL
2. OBJECTIVES
Identify Various Central Devices
Determine critical elements of care and maintenance of central venous lines
Identify potential complications related to central lines
Demonstrate ideal dressing for central lines
3. Out line Introduction
Objectives
Types of central lines
Central line complications
Central line flow control
Flushes for central lines
Dressing changes for central lines
Blood withdrawal from central lines
Changing access/injection caps
Care of the hickman site
5. Types of central lines Open-ended tunneled catheters
Tunneled valved catheters
Implanted ports
Nontunneled central venous catheters (CVCs)
Peripherally inserted central catheters (PICCs)
6. Central Line Complications Infections
Air embolus
Dislodgement of catheter
Catheter occlusion
7. Central Line Flow Control Volume in ML x Drop factor DEVIDED BY # of hours to be infused x 60
Drop factors are 15 drops / cc OR 60 drops / cc
8. WHY INTERVENTIONAL RADIOLOGY ?? Patient convenience
Fewer complications
Expediency
Accuracy
Lower cost
9. ADVANTAGES OF CENTRAL VENOUS ACCESS 1. Immediate access
2. High flow and dilution of hyper tonic solutions
3. Easy access
4. Permits outpatient care
10. DISADVANTAGES OF CENTRAL VENOUS ACCESS More invasive - potentially more complications and pain
11. 1. Long term IV therapy:
Chemo
Antibiotics
TPN
Blood products
2. Recurrent blood draws
3. Dialysis/Pharesis
12. CONTRAINDICATIONS 1. Sepsis
2. Coagulopathy
13. TYPES OF CENTRAL VENOUS ACCESS 1. Non tunneled external catheters
a. Central line
b. PICC line
2. Tunneled catheters
3. Subcutaneous Ports
a. chest
b. arm
14. CHOOSING THE ACCESS DEVICE Patients disease and status
Number and type of solutions, osmolality
Flow required
Frequency accessed
Duration of use- days vs months
Preferences - Dr. / Patient What is the disease entity? What needs to be administered?
Mention silastic vs polyethylene
Silastic poor friction coefficient, larger cath for same ID, better biocompatiblity
little fibrotic reaction
Polyurethane stiffer goes over wire betterWhat is the disease entity? What needs to be administered?
Mention silastic vs polyethylene
Silastic poor friction coefficient, larger cath for same ID, better biocompatiblity
little fibrotic reaction
Polyurethane stiffer goes over wire better
15. NUMBER AND COMPATIBILITY OF INFUSATES Determine true number of lumens that are required based on the number of infusates when they are given and if they are compatible
16. FLOW Internal Diameter (ID)
vs
Outer Diameter (OD)
The outer diameter is not always directly proportional to flow. Some catheters are just thick walled and although large yield slow flow. For high flow - check the ID. Remember, larger catheters cause more irritation potentiating stenosis and thrombosis.
Ports have low flow - don’t choose a port for high flow state
Want flow at 350 - 400
Ports have low flow - don’t choose a port for high flow state
Want flow at 350 - 400
17. DURATION > 7 days - PICC Line
1- 12 Weeks - PICC line / tunneled catheter
12 weeks - 6 months or greater - tunneled
catheter
> 6 months - Port
18. FREQUENCY OF ACCESS Frequent access and infusion - tunneled catheter
Infrequent access (every week or month)-port
19. MATERIAL Silastic
thicker, softer, larger for same flow, more friction over a wire
Polyurethane
stiffer, thinner wall, smaller for same flow, less friction
20. PREFERENCES Patient:
Some patients may prefer a port for aesthetics, no restrictions on activities
Operator:
If the operator can’t place a port
choose an alternative!!!!!!!
21. NON-TUNNELED EXTERNAL CATHETERS 1. Polyurethane
2. Single or multiple lumens
3. Flow varies depending on size and ID
4. Temporary - requires frequent exchanges
5. Easier placement, removal and replacement
23. PICC LINES 1. Silastic or polyurethane
2. Single or double lumen
3. Low flow
4. Short - long term
5. Easy access
25. TUNNELED CATHETERS 1. Single or multiple lumens
2. Flow - variable
3. Long term
4. Easy access (no skin puncture)
5. Cuff - Dacron, vita
Tunnel provides stability and protects against endovascular infection.
Dacron cuff allows fibrous ingrowth around 6 weeks
Vita cuff - oftern silver impregnated to retard infection, dissolves after 6 weeksTunnel provides stability and protects against endovascular infection.
Dacron cuff allows fibrous ingrowth around 6 weeks
Vita cuff - oftern silver impregnated to retard infection, dissolves after 6 weeks
29. SUBCUTANEOUS PORTS 1. Single or double lumen
2. Flow - most commonly slow
3. Long term
4. Access requires needle puncture
31. 5. Less maintenance
6. Activity is unlimited after site heals
7. Cosmetically more appealing
8. Concealed pocket retards infection (?) SUBCUTANEOUS PORTS
35. LOWER EXTREMITY Most commonly femoral vein
Easily contaminated from proximity to groin
Complication of DVT less tolerated
than upper extremity
36. SUBCLAVIAN VEIN ACUTE
Senagore - 10% incidence of art. Puncture
Mansfield - 12.2% unsuccessful access
CHRONIC
Cimchowski - 50% stenosis SCV, 10% IJV
Shillinger - 42% stenosis SCV, 10% IJV
Uldall - 10-30% thrombosis, 10-40%
stenosis
37. SUBCLAVIAN VEIN COMPLICATIONS STENOSIS THROMBOSI PINCH OFF
SYNDROME
38. ADVANTAGES OF THE RIGHT IJ 1. Larger
2. More superficial
3. Further from the lung
4. More direct route to the heart
5. Acute and chronic complications are reduced
39. CENTRAL VENOUS CATHETER PLACEMENT 1. Prep
2. Access
3. +/- Tunnel
4. Secure
40. Alcohol scrub to remove surface oils
Chlorhexidine scrub
Betadine prep (allow to dry)
Ioban dressing and drapes PREP
41. PREP Maximum Sterile Barrier -
Surgical hats, gowns, masks & gloves
3 - 5 min. surgical scrub
Antibiotics (controversial) 30-60 min. prior
Cefazolin (Kefzol, Ancef) 1 gm IV or
Gentamycin 80 mg IV
42. ACCESS Ultrasound (US) or venography to localize vein
Micropuncture technique
21 ga needle
.018” wire
Dilate to appropriate size for peel
away sheath
43. TUNNEL Some evidence suggests it should exceed
6 cm for best results
Tunnel using sharp or blunt device
Avoid bleeding !!!!!!
Position and place through peel away
45. SECURE A small exit site should retain cuff
If using suture, place 2-3cm away from exit site to reduce potential for infection
DO NOT secure suture too tightly around catheter
46. PORT POCKET Choose convenient comfortable site
Use 1% lidocaine with epi
Make a 3 cm incision with a # 15 blade
Create pocket with blunt dissection - hemostat and finger
47. 4 X 4’s or portable bovie to abate bleeding
Prevent bleeding to avoid infection
Secure port with non-absorbable sutures
Close wound with subcuticular or interrupted sutures PORT POCKET
48. COMPLICATIONS 1. Acute Procedural
2. Sub-acute Infection
3. Chronic
Infection
Catheter fragmentation
Non-function Tunnel provides stability and protects against endovascular infection.
Dacron cuff allows fibrous ingrowth around 6 weeks
Vita cuff - oftern silver impregnated to retard infection, dissolves after 6 weeksTunnel provides stability and protects against endovascular infection.
Dacron cuff allows fibrous ingrowth around 6 weeks
Vita cuff - oftern silver impregnated to retard infection, dissolves after 6 weeks
49. COMPLICATIONS:ACUTE 1. Spasm 4. Pneumothorax
2. Access failure 5. Malposition
3. Arterial puncture 6. Air embolus
50. PREVENTING ACUTE COMPLICATIONS 1. Micropuncture - 21ga needle, .018”wire
2. Imaging - US, Fluoro, Contrast, CO2
3. Right Internal Jugular vein approach
4. Tilting table, Valsalva, Pinch Sheath
51. AIR EMBOLUS: SYMPTOMS 1. Respiratory distress
2. Increased heart rate
3. Cyanosis
4. Poor pulse
5. Change in the level of consciousness
52. AIR EMBOLUS: TREATMENT 1. Left lateral decubitus (Durant’s) Position
2 100% O2
3. Vasopressin if necessary
4. Chest compression
5. Aspiration through catheter +/-
Mortality decreases from 90% 30%
with conventional treatment
53. COMPLICATIONS:CHRONIC 1. Infection
2. Catheter fragmentation
3. Non-function
54. PREVENTING INFECTION 1. Sterile environment
2. Periprocedural antibiotics
3. Number of lumens incidence of infection
4. Prep
5. Skin fixation
6. Dry dressing vs. Occlusive dressing
7. Ointments - Iodophor vs antibiotic
8. Special instructions
55. TYPES OF INFECTION EXIT SITE, TUNNEL/POCKET or CATHETER
1. Cutaneous - pain, erythema, swelling,
+/- exudate
2. Bacteremia - fever, leukocytosis and
positive blood cultures
3. Septic thrombophlebitis - bacteremia,
thrombosis and purulent discharge
56. INFECTION CAUSATIVE ORGANISMS Staph epidermidis 25-50%
Staph aureus 25%
Candida 5-10%
57. INFECTION:CATHETER REMOVAL 1. Exit site - 15.4%
2. Tunnel - 69%
3. Septic thrombophlebitis - 100% Micropuncture- less traumatic, decreased spasm and phlebitis and infection Imaging- detects patency and size of vein, prevents arterial and lung puncture
prevents malposition
RIJ straight shot less malfunction or pinch, less arterial puncture, ptx
Air embolus less with tilting table
Micropuncture- less traumatic, decreased spasm and phlebitis and infection Imaging- detects patency and size of vein, prevents arterial and lung puncture
prevents malposition
RIJ straight shot less malfunction or pinch, less arterial puncture, ptx
Air embolus less with tilting table
58. INFECTION 1. Septic thrombophlebitis - remove catheter
2. Cutaneous - local treatment
3. Bacteremia -
1. IV antibiotics 48 -72 hours
if improved - keep catheter
if no change, worse or recurs
remove catheter
or
2. Exchange catheter over wire,
85% cure with treatment
59. Continue to treat infection for 10 - 14 days
If ineffective - try locking with thrombolytics between antibiotic doses and administer antibiotics through catheters INFECTION
60. INFECTION:CATHETER REPLACEMENT 1. Afebrile
2. Negative blood culture Sitzman only 27% of catheters removed needed removal
Weightman = quantitative blood cultures with no other source
Increase needle punctures increase infection
Weightman - quantitative blood cultures from line and periphery , line should be 10X the periphery
Administer antibiotics thriough the lumens of the catheter and alternate lumens.
Pseudomonas and Baccillus infections are difficult to irradicated without removeing the catheter so in these remve it.
Sitzman only 27% of catheters removed needed removal
Weightman = quantitative blood cultures with no other source
Increase needle punctures increase infection
Weightman - quantitative blood cultures from line and periphery , line should be 10X the periphery
Administer antibiotics thriough the lumens of the catheter and alternate lumens.
Pseudomonas and Baccillus infections are difficult to irradicated without removeing the catheter so in these remve it.
61. CATHETER FRAGMENTATION 1. Power injection - > 2 cc/sec
2. Port injection - 10 cc syringe or greater
3. Catheter withdrawal
4. Pinch Off Syndrome
62. NON - FUNCTION:CATHETER MALPOSITION 1.Intravascular vs. Extravascular
2. Infuses but doesn’t aspirate
3. Check the CXR
Smaller than 10 cc syringe can gernerate > 40 psi
power injection larger lines max tolerate - 2-3cc/sec 9-10 fr
s-1.4cc for smaller lumen 7 fr dual lumen
Picc .3-.4 cc for 3 fr .8-1.2 for 4 fr
Always flush catheter before power injection to make sure no obstruction
Cath withdrawl - tounequet
Smaller than 10 cc syringe can gernerate > 40 psi
power injection larger lines max tolerate - 2-3cc/sec 9-10 fr
s-1.4cc for smaller lumen 7 fr dual lumen
Picc .3-.4 cc for 3 fr .8-1.2 for 4 fr
Always flush catheter before power injection to make sure no obstruction
Cath withdrawl - tounequet
63. CORRECTING MALPOSITION 1. Imaging guidance
2. Redirecting catheters