Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie The Buttonhole Cannulation technique Tony Goovaerts University Hospital St. Luc Brussels, Belgium Cliniques Universitaires Saint-Luc - Bruxelles - Belgique UCL ST.Luc: Prevalent patients Service de Néphrologie • • • • In-centre HD: 95 (49.0%) Home HD: 45 (23, 5%) Self-care satellite HD: 24(12%) PD: 30 (15,5%) Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Puncture techniques Service de Néphrologie Rope ladder Regional Buttonhole Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Rope ladder puncture Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Reasons for not respecting “Rope ladder” Service de Néphrologie Nurses don’t like to miss sticks Patients don’t like missed sticks Older dialysis population More diabetes patients Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Regional or area puncture Service de Néphrologie Small puncture area with: Thinning of the vessel wall Aneurismal formation Stenosis Oozing Longer bleeding times after needle removal Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Aneurysm Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Doppler Ultrasound: Aneurysm Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Doppler Ultrasound: Bloodflow Aneurisma Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Buttonhole puncture sites Service de Néphrologie Well established buttonhole puncture sites Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Buttonhole puncture site after 53 months in older patient Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Doppler Ultrasound: vessel integrity Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Doppler Ultrasound: tunnel track Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Doppler Ultrasound: bloodflow Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique History of buttonhole puncture Service de Néphrologie • Dr. Twardowski first reported on buttonhole cannulation • Originally used for patients with limited puncture sites • Proved to be efficient for other patients with native fistula Cliniques Universitaires Saint-Luc - Bruxelles - Belgique History of buttonhole puncture Service de Néphrologie • Dr. Twardowski • Dr. Scribner • Dr. Krönung Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Our ‘Buttonhole’ history Service de Néphrologie • 1997: visit University of Missouri, Columbia • Scepticism • End 1997: ‘buttonhole’ technique in first Home HD patients • Enthusiasm • No blunt needles available! Comparison of 2 methods of needle insertion Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Different sites Number of fistulas Number of dialysis Time of setting up Reinsertion (%) Hematoma formation Fistula limb failure Fistula failure Infection Service de Néphrologie Patients’ preference Nurses’ preference 22 4060 15-25 9.91 % 12.5 % 3 1 1 - Constant sites 25 6180 5-15 0.96 % 0.1 % 1 1 3 + + Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Buttonhole cannulation Service de Néphrologie • Growing opinion that the technique has several advantages compared to the other cannulation techniques • Infections!? • Easy but completely different • Nurses have to be trained to become skilled “buttonholers”using blunt needles!! Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Advantages of Buttonhole puncture Less hematoma Less pain Fewer missed sticks Shorter bleeding times Less scar formation Service de Néphrologie Perfect for patients with limited cannulation sites Perfect for home HD or self-care patients Staff: reduced risk of accidental needle sticks Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Bleeding times after dialysis Service de Néphrologie N=14 Arterial Venous W.A. H.P. F.N. S.G. S.L. E.B. E.A. R.B. B.R. S.A. Y.S. D.J. C.S. R.M. 1’30’’ 2’ 13’ 6’ 1’30’’ 2 2’30’’ 1’30 8 1’45’’ 3’ 3’ 3’30’’ 1’3’’ 5’ 12’ 4’ 2’ 2’30’’ 2’30’’ 1’30’’ 0’45’’ 4’15’’ 2’15’’ 4 5’30’’ 2’ Mean 3’45 ’’ 3’50’’ Shortest 1’30’’ 0’45’’ 10 patients 3’ 8 patients 3’ Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Bleeding at puncture sites after HD (86 patients ) Service de Néphrologie Buttonhole group 54.1% < 5 min 40.5% 5 – 10 min 5.4% > 10 min Control group 27.9 % < 5 min 58.1% 5 – 10 min 14% > 10 min S. Toma et al. Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Comparison of demographics of the study population Service de Néphrologie Characteristics Rope-ladder (n=70) Buttonhole (n=75) P-value Female Male 23 (33%) 47 (67%) 31 (41%) 48 (69%) 0.28 < 60 years > 60 years 22 (31%) 48 (69%) 29 (39%) 46 (61%) 0.36 Gender Age Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Diagnostic tests and interventions with the different cannulation techniques during 9 months Service de Néphrologie Patients with diagnostics tests Diagnostics tests Duplex Fistulogram MRA Patients with interventions Interventions Angioplastie Trombectomy Surgical revisions AB treatments because of access-related infections Rope-ladder (n = 70) Buttonhole (n = 75) 28 73 14 51 8 21 41 35 3 3 - 15 24 11 10 3 6 10 2 1 3 4 P -value 0.004 0.001 0.001 0.81 0.55 0.001 Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Buttonhole puncture technique Service de Néphrologie Two sequences: First: Creation of the tunnel track or “Break-in” period Second: sliding of dull needle through an established path Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Select the sites Service de Néphrologie Healthiest sections Easy to cannulate Distance of preferable 8 cm between needle tips preferable 8 cm Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Establishing Tunnel Track Service de Néphrologie • Standard procedure • Biohole procedure • Catheter Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Buttonhole puncture technique Service de Néphrologie Cannulation: - Disinfection! Exact same spots Same insertion angle Same depth of penetration Ideally single sticker! Cliniques Universitaires Saint-Luc - Bruxelles - Belgique 25 degrees angle! Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Remove scabs Service de Néphrologie Mandatory : - Not going “approximately” into the same spot!!! - Disinfection before and after! 25° Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Removal of scabs Service de Néphrologie Service de Néphrologie R. Morticorena Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Removal of scabs Service de Néphrologie • • • • • • Saline Alcohol gel Emla Chlorexidine creme Disinfecting Soap …… Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Establishing Tunnel Track Service de Néphrologie • Standard procedure • Biohole procedure • Catheter Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Insertion of plug Service de Néphrologie stick skin vessel Cliniques Universitaires Saint-Luc - Bruxelles - Belgique BioHole Buttonhole Device* Service de Néphrologie plug Support unit Support unit plug Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Test of BioHole Device (1) • 12 new patients with new AV fistula • Team of 8 nurses cannulating randomly • Tunnel track creation – 10 patients: 6 sessions – 2 patients: 8 sessions • Blunt needles Service de Néphrologie – 7 patients from second dialysis onwards – 5 patients from third, fourth or fifth dialysis onwards Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Test of BioHole Device(2) Service de Néphrologie • 3 X BioHole plug came out of tunnel track • 1 X haematoma after insertion of plug • 1 x bleeding after removal of plug Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Advantages of the BioHole Device Service de Néphrologie • No single sticker? • Faster tunnel track formation • Better tunnel track formation Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Drawback of the Biohole Device Service de Néphrologie Only one length! Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Establishing Tunnel Track Service de Néphrologie • Standard procedure • Biohole procedure • Catheter Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Courtesy R. Marticorena Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Courtesy R. Marticorena Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Courtesy R. Marticorena Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Buttonhole puncture technique Service de Néphrologie Two sequences: First: Creation of the tunnel track or “Break-in” period Second: sliding of dull needle through an established path Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Needles Sharp needle Service de Néphrologie Dull needle Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Sliding of dull needle through an established path Service de Néphrologie • Holding needle by wings • “Touch” Cannulation Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Second disinfection Service de Néphrologie Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Taping Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Checking Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Secure fixation Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Touch Cannulation Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Touch Cannulation Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Overall Problem Service de Néphrologie Frequently intermittent use of sharp needles instead of dull needles, which may lead to increased infection rate Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Comparison of cannulation characteristics in percentages between both cannulation techniques Service de Néphrologie Cannulation Practice Rope-ladder (n=70) Buttonhole (n=75) 6882 dialysis sessions 6847 dialysis sessions Type of needle Metal sharp Metal dull Catheter 90 % 10 % 44 % 56 % Strict protocol with primary cannulators Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Name Date Arterial Nurse 1st trial dull 2nd trial dull Primary cannulator 1st trial dull 2nd trial dull Service de Néphrologie sharp venous Signature Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Results of intervention Service de Néphrologie • Reduction from 44 % to < 2 % use of sharp needles • Dramatically improved infection rate Prospective observational cross-over study to test the impact of the use of semi-blunt needles on the quality of the puncture and the frequency of sharp needles use. Semi-Dull Needle = Dull Needle but with sharper angle Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Prospective observational cross-over study Service de Néphrologie • • • • 03/11/2008-O6/03/2009 51 patients with native AV fistula Age 71 + 9yr, 60% Males, 36% Diabetics 5672 cannulations Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Phase 1 a (n=29) BN BN Group: Mo, We, Fr BN All patiens Group: Tu, Th, So BN BN SBN SBN n=51 Phase 1 b (n=2O) Month 1 Service de Néphrologie SBN SBN Phase 2 a (n=28) Month 2 Month 3 Phase 2 b (n=19) Month 4 Month 5 BN 100 Cliniques Universitaires Saint-Luc - Bruxelles - Belgique 90 80 70 60 First attempt 50 Second attempt 40 ref. nurse Sharp needle 30 20 10 0 All Service de Néphrologie BN 1a SBN 2a BN 1b 2b BN SBN Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Blunt Needle Semi-Blunt Needle P-value 1 st Attempt 94,3 % 94,2 % 0.9897 2 nd Attempt 1,89 % 1,47 % Prim. Cannulator Blunt needle 2,19 % 2,62 % Prim. Cannulator Sharp needle 1,55 % 1,68 % 0.7141 Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Buttonhole Wrong Angle Service de Néphrologie • Needle inserted into the buttonhole tunnel trackbut the angle is not in alignment with the vessel flap • The needle can bounce on the vein and not displace the vessel flap Courtesy D. Brouwer Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Buttonhole Wrong Angle Adjust angle to find the flap Lift up or down on the needle to readjust the angle (10° until the needle drops into the vessel flap Causes: moving needle from angle used to enter the skin, arm positioning not in routine place, fluid status change with edema or patient body weight gain or loss Service de Néphrologie Courtesy D. Brouwer Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Implementing a Programme Service de Néphrologie • • • • • • • Small group of nurses Small group of patients Which protocol? Expand Be vigilant!!!!!! Primary/reference nurses/cannulators Promote self-cannulation Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Teaching self-cannulation Service de Néphrologie • • • • Importance of disinfection Importance of removal of scabs Signs of infection Minimal use of sharp needles Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Touch Cannulation Service de Néphrologie Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Create new puncture site if necessary! Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Some discussion points Service de Néphrologie • • • • • Tourniquet? Bevel up or down? Needle size? Rotation of needle? Antegrade or retrograde needling? Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Antegrade or retrograde needling? Service de Néphrologie Antegrade: with the flow Retrograde: against the flow Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Antegrade (ven) and Retrograde (art) Service de Néphrologie Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique 2 cm Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Service de Néphrologie Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Optimal needle directions Service de Néphrologie Both needles antegrade - Easier for nurse to puncture - Easier for self-puncturing - May be fistula protective Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Antegrade puncturing: may be fistula protective Service de Néphrologie Increased risk of haematoma formation from retrograde filling Tract closure through flow force by antegrade puncture Exit site infection • HD patients have more Staphylococcus Aureus on their skin than the general population (Ball, 2006) Exit site infection: • Caused by a break in technique such as improper cleansing of the skin or scab removal • Sites may be inflamed, red, draining, painful Courtesy R. Morticorena Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Prevention of infections! Strict protocols Soaking of scabs Scab removers Contact time desinfecting agent Use of sharp needles Reference nurses..? New devices…… Service de Néphrologie Mupirocine? Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Prevention of infections! Service de Néphrologie I am a physician and a dialysis patient using the buttonhole method without any complications now for nearly 4 years. I believe the increased infection rates seen with BH are due NOT to the procedure itself, but due to patient and staff technique! I have now dialyzed in 9 units in 7 States and ALL of these units have infection control issues especially with changing gloves and washing hands! Peter Laird, MD Cliniques Universitaires Saint-Luc - Bruxelles - Belgique BH Contra-indications?! Service de Néphrologie • Thin subcutaneous tissue • Valvular heart disease • Other prosthetic material (pacemaker) • Immune suppression Other Complications of BH Cannulation Contact Dermatitis caused by exposure to cleansing solution (Chlorhexidine): Progress over 2 weeks changing the cleansing solution and applying corticoid cream Day 1 Day 3 Day 14 R. Morticorena Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Conclusion (1) Service de Néphrologie • Buttonhole is a rapidly growing cannulation technique for AVF throughout the world • Much better than “Area puncturing” • The technique is still evolving • Strict protocols are mandatory to avoid complications Cliniques Universitaires Saint-Luc - Bruxelles - Belgique Conclusion (2) Service de Néphrologie • Several studies are underway • The use of sharp needles should be reduced to a minimum • Primary cannulators?