<prompt> Not an advantage of synchronized intermittent mandatory ventilation SIMV over controlled mode ventilation CMV:Increased requirement of sedation and muscle relaxantLess hypotensionLess V Q mismatchRapid weaning  <response>: disadvantage of control mode ventilation 1. paralysis or deep sedation is required 2. hemodynamic imbalance in background of decreased blood volume 3. respiratory muscle atrophy 4. weaning not possible. synchronized intermittent mandatory ventilation has minimized removed these side effects 