This is because remifentanil will be rapidly eliminated from the blood plasma on termination of the remifentanil infusion, hence the effects of the drug will quickly dissipate even after very long infusions. Owing to synergism between remifentanil and hypnotic drugs (such as propofol) the dose of the hypnotic can be substantially reduced. This leads often to more hemodynamic stability during surgery and a quicker post-operative recovery time. Side-effects
Remifentanil is a specific μ-receptor agonist. Hence, it causes a reduction in sympathetic nervous system tone, respiratory depression and analgesia. The drugs effects include a dose-dependent decrease in heart rate and arterial pressure and respiratory rate and tidal volume. Muscle rigidity is sometimes noted. The most common side effects reported by patients receiving this medication are a sense of extreme "dizziness" (often short lived, a common side effect of other fast-acting synthetic phenylpiperidine narcotics such as fentanyl and alfentanil) and intense itching (pruritus), often around the face. These side effects are often controlled by either altering the administered dose  (decreasing or in some cases, increasing the dose) or by administering other sedatives that allow the patient to tolerate or lose awareness of the side effect. Because pruritus is due to excessive serum histamine levels, antihistamines such as diphenhydramine (Benadryl) are often co-administered. This is done with care, however, as excessive sedation may occur. Nausea can occur as a side effect of remifentanil, however, it is usually transient in nature due to the drugs short half-life which rapidly removes it from the patients circulation once the infusion is terminated.
Leg before wicket (LBW) 
a way of dismissing the batsman. In brief, the batsman is out if, in the opinion of the umpire, the ball hits any part of the batsmans body (usually the leg) before hitting or missing the bat and would have gone on to hit the stumps. Leg break
a spin bowling delivery which turns from the leg side to the off side of a right-handed batsman. The stock delivery of a leg spin bowler. Leg bye
Extras taken after a delivery hits any part of the body of the batsman other than the bat or the gloved hand that holds the bat. If the batsman makes no attempt to play the ball with the bat or evade the ball that hits them, leg byes may not be scored. Leg cutter
A break delivery bowled by a fast or medium-pace bowler with similar action to a spin bowler, but at a faster pace. The ball breaks from the leg side to the off side of the batsman. Leg glance
A delicate shot played at a ball aimed slightly on the leg side, using the bat to flick the ball as it passes the batsman, deflecting towards the square leg or fine leg area. Leg side
the half of the field to the rear of the batsman as they take strike (also known as the on side). Leg slip
a fielding position equivalent to a slip, but on the leg side. Leg spin
the style of spin bowling produced by right-handed wrist spin.