Effectiveness of heparin versus 0.9% saline solution in maintaining the permeability of central venous catheters: a systematic review

• Main Authors: Eduardo José Ferreira dos Santos, Maria Madalena Jesus Cunha Nunes, Daniela Filipa Batista Cardoso, João Luís Alves Apóstolo, Paulo Joaquim Pina Queirós, Manuel Alves Rodrigues
• Format: Article
• Language: English
• Published: Universidade de São Paulo 2015-12-01
• Series: Revista da Escola de Enfermagem da USP
• Subjects: Cateterismo Venoso Central; Heparina; Cloruro de Sodio; Catéteres Venosos Centrales; Revisión
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0080-62342015000600995&lng=en&tlng=en

Abstract OBJECTIVE Determining which is the most effective solution (heparin flush compared to 0.9% saline flush) for reducing the risk of occlusions in central venous catheters (CVC) in adults. METHOD The systematic review followed the principles proposed by the Cochrane Handbook; critical analysis, extraction and synthesis of data were performed by two independent researchers; statistical analysis was performed using the RevMan program 5.2.8. RESULTS Eight randomized controlled trials and one cohort study were included and the results of the meta-analysis showed no difference (RR=0.68, 95% CI=0.41-1.10; p=0.12). Analysis by subgroups showed that there was no difference in fully deployed CVC (RR=1.09, CI 95%=0.53-2.22;p=0.82); Multi-Lumen CVC showed beneficial effects in the heparin group (RR=0.53, CI 95%=0.29-0.95; p=0.03); in Double-Lumen CVC for hemodialysis (RR=1.18, CI 95%=0.08-17.82;p=0.90) and Peripherally inserted CVC (RR=0.14, CI 95%=0.01-2.60; p=0.19) also showed no difference. CONCLUSION Saline solution is sufficient for maintaining patency of the central venous catheter, preventing the risks associated with heparin administration.