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1.
Hemodial Int ; 18(1): 15-23, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23944971

RESUMO

Vascular access is the major risk factor for bacteremia, hospitalization, and mortality among hemodialysis (HD) patients. The type of vascular access most associated with bloodstream infection is central venous catheter (CVC). The incidence of catheter-related bacteremia ranges between 0.6 and 6.5 episodes per 1000 catheter days and increases linearly with the duration of catheter use. Given the high prevalence of CVC use and its direct association with catheter-related bacteremia, which adversely impacts morbidity and mortality rates and costs among HD patients, several prevention measures aimed at reducing the rates of CVC-related infections have been proposed and implemented. As a result, a large number of clinical trials, systematic reviews, and meta-analyses have been conducted in order to assess the effectiveness, clinical applicability, and long-term adverse effects of such measures. In the following article, prophylactic measures against CVC-related infections in HD patients and their possible advantages and limitations will be discussed, and the more recent literature on clinical experience with prophylactic antimicrobial lock therapy in HD CVCs will be reviewed.


Assuntos
Bacteriemia , Cateteres Venosos Centrais/efeitos adversos , Diálise Renal , Bacteriemia/etiologia , Bacteriemia/prevenção & controle , Humanos , Diálise Renal/efeitos adversos , Diálise Renal/instrumentação , Diálise Renal/métodos
2.
Artif Organs ; 38(5): 399-403, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24117542

RESUMO

Despite their propensity for significant infectious and mechanical complications, tunneled central venous catheters (CVCs) have become a common means of vascular access in the world for patients requiring chronic hemodialysis for end-stage renal disease. The objective of this study was to explore if cryopreserved solutions of the thrombolytic agent alteplase could be used as an effective, safe, and economically reasonable alternative in hemodialysis patients with occluded tunneled CVC. Patients requiring chronic hemodialysis and presenting with occluded tunneled CVC received a sufficient volume of the alteplase solution to fill the occluded catheter. To make alteplase economically feasible, it was diluted to 1-mg/mL aliquots and they were stored at -20°C until use. Eighty-one patients accounting for 179 attempted clearances were assessable for efficacy. One hundred forty-seven (82.1%) of the 179 catheter clearance attempts resulted in successful catheter clearance after one dose. Twenty-seven (15.1%) of all occluded CVCs were successful after two doses whereas five (2.8%) were not. No adverse events were reported. Cryopreserved 1-mg/mL aliquots of alteplase are safe and effective in the clearance of occluded CVC for hemodialysis patients.


Assuntos
Cateteres Venosos Centrais/efeitos adversos , Fibrinolíticos/uso terapêutico , Diálise Renal/instrumentação , Trombose/prevenção & controle , Ativador de Plasminogênio Tecidual/uso terapêutico , Grau de Desobstrução Vascular/efeitos dos fármacos , Idoso , Cateterismo Venoso Central/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
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