Though 2% lignocaine with 1:80000 is widely used in India, 1:200000 adrenaline concentrations do not much affect the cardiovascular parameters. So it is recommended to use 2% lignocaine with 1:200000 for cardiac patients.
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Andrew Haase, Al Reader, John Nusstein et al. · The Journal of the American Dental Association · 2008 · 130 citations
Mandibular First Molar, Medicine, Articaine Versus Lidocaine +7
Carlos Ferreira Santos, K.C.S. Modena, Fernando Paganeli Machado Giglio et al. · Journal of Oral and Maxillofacial Surgery · 2007 · 79 citations