The accidental overdose of local anesthetics may prove fatal. The commonly used amide local anesthetics have varying adverse effects on the myocardium, and beyond a certain dose all are capable of causing death. Local anesthetics are the most frequently used drugs amongst anesthetists and although uncommon, local anaesthetic systemic toxicity accounts for a high proportion of mortality, with local anaesthetic-induced cardiac arrest particularly resistant to standard resuscitation methods. Over the last decade, there has been convincing evidence of intravenous lipid emulsions as a rescue in local anesthetic-cardiotoxicity, and anesthetic organisations, over the globe have developed guidelines on the use of this drug. Despite this, awareness amongst practitioners appears to be lacking. All who use local anesthetics in their practice should have an appreciation of patients at high risk of toxicity, early symptoms and signs of toxicity, preventative measures when using local anesthetics, and the initial management of systemic toxicity with intravenous lipid emulsion. In this paper we intend to discuss the pharmacology and pathophysiology of local anesthetics and toxicity, and the rationale for lipid emulsion therapy.

No abstract

In a series of 19 neonates with small-bowel atresia, 16 were treated by end-to-end linear anastomosis (ELA) without resection and 3 by resection anastomosis (RA). Seven atresias were jejunal, 11 were ileal, and 1 jejunoileal; 3 cases were type II, 12 type IIIa, 3 type IIIb, and 1 type IV. There were 4 deaths, 1 after ELA and 3 after RA. The overall mortality decreased from 68 to 20.80% and for linear anastomosis to 6.25% presumably, because the intestinal contents are propelled along the lumen in a linear fashion and not at an angle as in end-to-back anastomosis, avoiding shearing of the suture line. The additional plicating sutures reduce the radius and increase the propelling force. We recommend this technique because it is based on sound principles of physics and preserves the entire available length of intestine.

No abstract

No abstract