  We investigate the impact of higher-order nonlinear and dispersive effects on
the onset of soliton explosions in the complex cubic-quintic Ginzburg-Landau
equation. We show how the interplay of the high order effects (HOEs) results in
the splitting of symmetric explosion modes and to the formation of right- or
left-side periodic explosions. In addition, we demonstrate that HOEs induce a
series of pulsating instabilities, leading to a significant reduction of the
stability region of the single soliton solution.
