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  1. Article: Medication Adherence in Patients on Chronic Hemodialysis: Practical Applications in Clinical Practice.

    Briones, Patricia Larrieu / Merrill, Donna / Salman, Loay

    Nephrology nursing journal : journal of the American Nephrology Nurses' Association

    2015  Volume 42, Issue 6, Page(s) 585–588

    MeSH term(s) Humans ; Kidney Failure, Chronic/drug therapy ; Medication Adherence/psychology ; Nephrology Nursing/methods ; Nurse's Role ; Patient Education as Topic ; Renal Dialysis
    Language English
    Publishing date 2015-11
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2008177-7
    ISSN 1526-744X ; 8750-0779
    ISSN 1526-744X ; 8750-0779
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Stent graft infection and protrusion through the skin: clinical considerations and potential medico-legal ramifications.

    Asif, Arif / Gadalean, Florin / Eid, Nadia / Merrill, Donna / Salman, Loay

    Seminars in dialysis

    2010  Volume 23, Issue 5, Page(s) 540–542

    Abstract: Stent grafts have been used for a variety of arteriovenous access associated issues. This article presents three cases of stent graft infection and a case of protruded metal piece of the stent graft through the skin. All four required surgical treatment ... ...

    Abstract Stent grafts have been used for a variety of arteriovenous access associated issues. This article presents three cases of stent graft infection and a case of protruded metal piece of the stent graft through the skin. All four required surgical treatment and three cases required a tunneled dialysis catheter to provide long-term dialysis therapy. This report highlights that stent graft problems can occur that may result in loss of the access. Additionally, strut protrusion can pose a medical hazard to those performing preparation and cannulation of the arteriovenous access.
    MeSH term(s) Adult ; Arm/blood supply ; Arteriovenous Shunt, Surgical/adverse effects ; Female ; Humans ; Male ; Middle Aged ; Prosthesis Failure ; Prosthesis-Related Infections/microbiology ; Prosthesis-Related Infections/surgery ; Renal Dialysis ; Stents
    Language English
    Publishing date 2010-09
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1028193-9
    ISSN 1525-139X ; 0894-0959
    ISSN (online) 1525-139X
    ISSN 0894-0959
    DOI 10.1111/j.1525-139X.2010.00758.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: What should nephrologists do to maximize the use of arteriovenous fistulas?

    Asif, Arif / Lenz, Oliver / Merrill, Donna / Pennell, Phillip

    Seminars in dialysis

    2006  Volume 19, Issue 3, Page(s) 203–205

    MeSH term(s) Arteries/surgery ; Arteriovenous Shunt, Surgical/adverse effects ; Forearm/blood supply ; Graft Occlusion, Vascular/etiology ; Humans ; Kidney Failure, Chronic/therapy ; Renal Dialysis ; Veins/surgery
    Language English
    Publishing date 2006-05
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1028193-9
    ISSN 1525-139X ; 0894-0959
    ISSN (online) 1525-139X
    ISSN 0894-0959
    DOI 10.1111/j.1525-139X.2006.00154.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Measurement of vessel diameter during angioplasty: are we accurately performing this task?

    Salman, Loay / Vazquez-Padron, Roberto I / Castro, Hector / Monrroy, Mauricio / Abdelwahed, Yehia / Rizvi, Abid / Merrill, Donna / Asif, Arif

    Seminars in dialysis

    2014  Volume 27, Issue 4, Page(s) E38–41

    Abstract: Vessel diameter is objectively measured by a lead ruler positioned in the fluoroscopic field and software calibration during angioplasty. We conducted a prospective study to evaluate the accuracy of lead ruler determination of vessel diameter. Chronic ... ...

    Abstract Vessel diameter is objectively measured by a lead ruler positioned in the fluoroscopic field and software calibration during angioplasty. We conducted a prospective study to evaluate the accuracy of lead ruler determination of vessel diameter. Chronic hemodialysis patients undergoing an angioplasty procedure were included in this study (n = 37). Vessel diameter was determined by calibrating the fluoroscopy machine to a ruler with lead markers placed in the fluoroscopic field. The same calibration was used to measure the fully effaced angioplasty balloon in its intravascular location. We compared the measured balloon diameter with the actual (manufacturer's) diameter. The approximate depth of the ruler from the measured vessel was also determined. Angioplasty balloons appeared 13.75-40.83% (mean 25.8% ± 7.015) smaller than the actual size of the balloon (p < 0.0001) when measured using a calibrated fluoroscopic machine. There was a tendency toward the fact that the bigger the distance between the ruler and the vessel (that contained the angioplasty balloon), the more likely the technique underestimated the size of the angioplasty balloon. Lead ruler method underestimates the diameter of the vessel. Recognizing such a discrepancy is important when determining the size of an angioplasty balloon or endovascular stent.
    MeSH term(s) Angioplasty, Balloon, Coronary/methods ; Coronary Angiography/methods ; Coronary Disease/diagnostic imaging ; Coronary Disease/surgery ; Coronary Vessels/surgery ; Female ; Fluoroscopy/methods ; Humans ; Intraoperative Period ; Male ; Middle Aged ; Prospective Studies ; Reproducibility of Results ; Stents
    Language English
    Publishing date 2014-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1028193-9
    ISSN 1525-139X ; 0894-0959
    ISSN (online) 1525-139X
    ISSN 0894-0959
    DOI 10.1111/sdi.12164
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Vascular access education, planning and percutaneous interventions by nephrologists.

    Asif, Arif / Merrill, Donna / Pennell, Phillip

    Contributions to nephrology

    2005  Volume 149, Page(s) 138–149

    Abstract: To optimize vascular access care of patients with end stage renal disease, nephrologists themselves are taking a keen interest in the management of vascular access-related issues. Because of their unique clinical perspective on dialysis access and better ...

    Abstract To optimize vascular access care of patients with end stage renal disease, nephrologists themselves are taking a keen interest in the management of vascular access-related issues. Because of their unique clinical perspective on dialysis access and better understanding of the intricacies of renal replacement therapy, nephrologists are ideally suited for this activity. Two areas are the main focus of attention by these specialists: vascular access education and access-related percutaneous interventions. Vascular access-related procedures commonly performed by nephrologists include percutaneous balloon angioplasty for vascular access stenosis, thrombectomy procedure for a thrombosed arteriovenous access, tunneled hemodialysis catheter-related procedures and vascular mapping to determine the patient's optimal vascular access. While the performance of these procedures by nephrologists offers many advantages, appropriate training in order to develop the necessary procedural skills is critical. Recent data have emphasized that a nephrologist can be successfully trained to become a competent interventionalist. In addition to documenting excellent outcome data, multiple reports have demonstrated safety and success when these procedures are performed by nephrologists. This chapter focuses on vascular access education and hemodialysis access-related procedures performed by nephrologist and calls for a proactive approach in optimizing this aspect of patients care.
    MeSH term(s) Angioplasty, Balloon ; Arteriovenous Shunt, Surgical/education ; Catheters, Indwelling ; Education, Medical, Continuing ; Humans ; Nephrology/education ; Nephrology/methods ; Patient Care Planning ; Renal Dialysis/methods ; Thrombectomy ; Vascular Surgical Procedures/adverse effects ; Vascular Surgical Procedures/education ; Vascular Surgical Procedures/statistics & numerical data
    Language English
    Publishing date 2005
    Publishing country Switzerland
    Document type Journal Article ; Review
    ISSN 0302-5144
    ISSN 0302-5144
    DOI 10.1159/000085477
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Contamination of transvenous pacemaker leads due to tunneled hemodialysis catheter infection: a report of 2 cases.

    Carrillo, Roger G / Garisto, Juan D / Salman, Loay / Merrill, Donna / Asif, Arif

    American journal of kidney diseases : the official journal of the National Kidney Foundation

    2010  Volume 55, Issue 6, Page(s) 1097–1101

    Abstract: Catheter-related bacteremia is a frequent complication associated with the use of tunneled hemodialysis catheters. Catheter-related bacteremia can lead to metastasis of infection to other sites. This article presents 2 patients with transvenous ... ...

    Abstract Catheter-related bacteremia is a frequent complication associated with the use of tunneled hemodialysis catheters. Catheter-related bacteremia can lead to metastasis of infection to other sites. This article presents 2 patients with transvenous pacemakers (placed >2 years ago) who were receiving long-term hemodialysis therapy using tunneled hemodialysis catheters. Both were admitted to the hospital with catheter-related bacteremia. Blood cultures showed methicillin-resistant Staphylococcus aureus (MRSA) in both cases. Transesophageal echocardiography was negative for the presence of valvular endocarditis, but showed lead-associated vegetation in both cases. Intravenous antibiotic therapy was initiated, and both the tunneled hemodialysis catheters and cardiac devices were removed by a cardiothoracic surgeon. The catheter tip and leads cultures showed MRSA in both cases. After resolution of bacteremia, both patients received an epicardial cardiac device. Antibiotic therapy was continued for 6 weeks. Renal physicians providing dialysis therapy should be aware that catheter-related bacteremia could cause contamination of transvenous pacemaker leads. Because catheter-related bacteremia is a frequent complication, epicardial leads might be considered as an alternative route to provide cardiac support to catheter-consigned patients. Epicardial leads do not navigate through the central veins, lie in the path of blood flow, or cause central venous stenosis.
    MeSH term(s) Aged ; Anti-Bacterial Agents/therapeutic use ; Bacteremia/diagnosis ; Bacteremia/drug therapy ; Bacteremia/etiology ; Catheters, Indwelling/microbiology ; Chronic Disease ; Female ; Humans ; Kidney Diseases/therapy ; Male ; Methicillin-Resistant Staphylococcus aureus/isolation & purification ; Pacemaker, Artificial/microbiology ; Renal Dialysis/adverse effects ; Renal Dialysis/instrumentation ; Renal Dialysis/methods ; Staphylococcal Infections/diagnosis ; Staphylococcal Infections/drug therapy ; Staphylococcal Infections/etiology
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2010-06
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 604539-x
    ISSN 1523-6838 ; 0272-6386
    ISSN (online) 1523-6838
    ISSN 0272-6386
    DOI 10.1053/j.ajkd.2010.01.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Radial artery harvest: a potential cause of arteriovenous access-associated hand ischemia.

    Asif, Arif / Siskin, Gary / Kumar, Vishesh / Haqqie, Syed S / Mathew, Roy O / Wang, Shouwen / Nayer, Ali / Merrill, Donna / Salman, Loay

    Seminars in dialysis

    2013  Volume 26, Issue 3, Page(s) E17–9

    Abstract: Hand ischemia has multiple causes. In this article, we report an additional factor that can induce hand ischemia in hemodialysis patients. A 64-year-old white man with coronary artery disease underwent a coronary artery bypass graft procedure using the ... ...

    Abstract Hand ischemia has multiple causes. In this article, we report an additional factor that can induce hand ischemia in hemodialysis patients. A 64-year-old white man with coronary artery disease underwent a coronary artery bypass graft procedure using the left radial artery as the bypass graft. Several months later, a left extremity Gracz fistula was created for arteriovenous access. Ever since dialysis was performed via the fistula the patient has experienced a cold hand and pain during dialysis that was somewhat relieved by wearing a woolen glove while on dialysis. Absence of the radial artery in the context of an ipsilateral arteriovenous access was highlighted as a possible etiology. A complete arteriography to determine the presence of stenoses, distal arteriopathy, and true steal was recommended, but the patient refused to undergo any investigation or procedure and instead decided to continue wearing the glove during the treatment. A plan for close follow-up and possible interventions in the event of worsening pain/ulceration was agreed upon. Radial artery harvest can result in hand ischemia if an ipsilateral arteriovenous access is created. We suggest that the contralateral extremity should be considered if an arteriovenous access is required to minimize this risk of this phenomenon.
    MeSH term(s) Arteriovenous Shunt, Surgical/adverse effects ; Coronary Artery Bypass/methods ; Hand/blood supply ; Humans ; Ischemia/etiology ; Kidney Failure, Chronic/therapy ; Male ; Middle Aged ; Radial Artery/surgery ; Renal Dialysis
    Language English
    Publishing date 2013-05
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1028193-9
    ISSN 1525-139X ; 0894-0959
    ISSN (online) 1525-139X
    ISSN 0894-0959
    DOI 10.1111/sdi.12084
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Strategies to minimize tunneled hemodialysis catheter use.

    Asif, Arif / Merrill, Donna / Leon, Carlos / Ellis, Renee / Pennell, Phillip

    Blood purification

    2006  Volume 24, Issue 1, Page(s) 90–94

    Abstract: While the use of arteriovenous grafts has recently declined, there has been an astronomical increase in hemodialysis patients dialyzing with tunneled dialysis catheters (TDCs). Recent data have indicated that over 70% of the patients with end-stage renal ...

    Abstract While the use of arteriovenous grafts has recently declined, there has been an astronomical increase in hemodialysis patients dialyzing with tunneled dialysis catheters (TDCs). Recent data have indicated that over 70% of the patients with end-stage renal disease initiate dialysis with a catheter. Additionally, up to 27% of the end-stage renal disease patients in the US are using TDCs as their permanent access, with placement rates having doubled since 1996. Although most modern catheters claim to provide adequate blood flow for dialysis, they are associated with the highest incidence of complications, morbidity and mortality when compared with other types of vascular access. It is for these reasons that the National Kidney Foundation Dialysis Outcomes Quality Initiative guideline 30 as well as the Fistula First Change Concept 7 emphasize limiting the use of catheters and fostering the creation of arteriovenous fistulae. Early referral has clearly been shown to minimize the use of TDCs and maximize fistulae. This report focuses on the role of additional measures that minimize TDC use, such as dialysis modality presentation and peritoneal dialysis, vascular access education, preoperative vascular mapping and salvage of early failure and thrombosed fistulae.
    MeSH term(s) Catheters, Indwelling/adverse effects ; Humans ; Kidney Diseases/complications ; Kidney Diseases/mortality ; Kidney Diseases/therapy ; Peritoneal Dialysis/methods ; Peritoneal Dialysis/mortality ; Thrombosis/etiology ; Thrombosis/prevention & control
    Language English
    Publishing date 2006
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 605548-5
    ISSN 1421-9735 ; 0253-5068
    ISSN (online) 1421-9735
    ISSN 0253-5068
    DOI 10.1159/000089443
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: A novel technique for tethered dialysis catheter removal using the laser sheath.

    Carrillo, Roger G / Garisto, Juan D / Salman, Loay / Merrill, Donna / Asif, Arif

    Seminars in dialysis

    2009  Volume 22, Issue 6, Page(s) 688–691

    Abstract: Traction and cutdown techniques can successfully remove a tunneled dialysis catheter (TDC) in a great majority of patients. However, these methods may not be successful in patients with catheters that are tethered or attached to the central veins or the ... ...

    Abstract Traction and cutdown techniques can successfully remove a tunneled dialysis catheter (TDC) in a great majority of patients. However, these methods may not be successful in patients with catheters that are tethered or attached to the central veins or the atrium. A forceful application of traction can lead to catheter breakage with subsequent retention of the broken piece and carries a potential risk of vascular and atrial wall avulsion. Open thoracotomy has been employed to remove an attached TDC. However, this procedure is invasive and bears a significant morbidity. This report presents three cases of tethered TDCs that underwent laser sheath extraction. The TDCs had been in place for an average of 26 months. The patients underwent initial unsuccessful removal attempt using the traction method with surgical exploration all the way to the venotomy site. The laser technique that is used to remove pacemaker/implantable cardioverter defibrillator leads was then applied to these stuck catheters. All three catheters were successfully removed without any damage to the catheter, central veins, or the right atrium. There were no retained catheter fragments left in the central veins or the atrium. One patient demonstrated a significant thrombus that extended from the tip of the catheter all the way to the right ventricle. The external sheath of the laser device successfully aspirated the thrombus. There were no procedure-related complications. In this small series, a laser sheath successfully extracted tethered dialysis catheters. The study found the procedure to be effective, easy to perform, and minimally invasive. We suggest that this approach be considered for the removal of tethered catheters that cannot be removed using traditional approaches.
    MeSH term(s) Adult ; Brachiocephalic Veins ; Catheterization, Central Venous ; Catheters, Indwelling ; Device Removal/instrumentation ; Echocardiography ; Equipment Failure ; Heart Atria/diagnostic imaging ; Humans ; Jugular Veins ; Laser Therapy/methods ; Male ; Middle Aged ; Renal Dialysis/instrumentation ; Subclavian Vein ; Tissue Adhesions/etiology ; Tissue Adhesions/therapy ; Vena Cava, Superior
    Language English
    Publishing date 2009-11
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1028193-9
    ISSN 1525-139X ; 0894-0959
    ISSN (online) 1525-139X
    ISSN 0894-0959
    DOI 10.1111/j.1525-139X.2009.00646.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Can blood flow surveillance and pre-emptive repair of subclinical stenosis prolong the useful life of arteriovenous fistulae? A randomized controlled study.

    Cipleu, Cristian D / Cherla, Gautam V / Merrill, Donna / Asif, Arif

    Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association

    2005  Volume 20, Issue 1, Page(s) 241–2; author reply 242–3

    MeSH term(s) Angiography ; Angioplasty, Balloon/methods ; Arteriovenous Shunt, Surgical/adverse effects ; Constriction, Pathologic/diagnostic imaging ; Constriction, Pathologic/therapy ; Female ; Follow-Up Studies ; Humans ; Kidney Failure, Chronic/diagnosis ; Kidney Failure, Chronic/therapy ; Male ; Regional Blood Flow/physiology ; Renal Dialysis/adverse effects ; Renal Dialysis/methods ; Risk Assessment
    Language English
    Publishing date 2005-01
    Publishing country England
    Document type Clinical Trial ; Comparative Study ; Letter ; Randomized Controlled Trial ; Comment
    ZDB-ID 90594-x
    ISSN 1460-2385 ; 0931-0509
    ISSN (online) 1460-2385
    ISSN 0931-0509
    DOI 10.1093/ndt/gfh600
    Database MEDical Literature Analysis and Retrieval System OnLINE

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