Annales chirurgiae et gynaecologiae
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Randomized Controlled Trial Comparative Study Clinical Trial
Prophylaxis against pulmonary complications in patients undergoing gall-bladder surgery. A comparison between early mobilization, physiotherapy with and without bronchodilatation.
A random comparison of early mobilization and chest physiotherapy (mainly breathing exercises) with or without bronchodilatating inhalations for prophylaxis against pulmonary complications in patients undergoing elective gall-bladder surgery is presented. The operation was performed with a subcostal incision and peroperatively, intercostal nerve block was administered. ⋯ Thus early mobilization was as effective in our study as the other prophylactic treatments. In patients without pulmonary disease perhaps early mobilization and efficient analgesia after surgery is as effective as more resource demanding physiotherapy for prophylaxis against postoperative pulmonary complications.
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The methods of providing postoperative analgesia by regional anaesthetic techniques with local anaesthetics are outlined. For the use of epidural analgesia, the techniques of inserting an epidural catheter at any level of the spine must be familiar. The block should be regional, restricted to the area of pain and effective at all times after its institution with a minimum of side effects. ⋯ A dose regimen for thoracic, abdominal, perineal and lower extremity pain is presented. Side effects of the epidural technique and ways to treat and avoid them are discussed. The intercostal nerve block for post-thoracotomy and upper abdominal pain is described with special reference to the recent development of the continuous technique with bupivacaine and the cryoanalgesia technique.
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The clinically useful local anesthetic agents can be divided chemically into the amino-esters, e.g., procaine, chloroprocaine and tetracaine, and the amino-amides, e.g., lidocaine, mepivacaine, prilocaine, bupivacaine and etidocaine. Pharmacologically, these agents can be categorized as agents of low potency and short duration of action, e.g., procaine and chloroprocaine; agents of intermediate potency and duration of action, e.g., lidocaine, mepivacaine and prilocaine; and agents of high potency and long duration, e.g., tetracaine, bupivacaine and etidocaine. The blood level of local anesthetics is determined by the rate of uptake, tissue redistribution, metabolism and excretion. ⋯ Among the ester agents chloroprocaine is cleared most rapidly due to its fast rate of hydrolysis. Within the amide series, prilocaine is cleared most rapidly due to its fast rate of tissue redistribution and its rapid hepatic metabolism. Bupivacaine is cleared most slowly due primarily to its decreased rate of hepatic degradation.
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The most important complications following gastrointestinal surgery are related to disruption of anastomoses. The fate of a gastrointestinal anastomosis is influenced by many factors. Among these, care in the anaesthetic management and postoperative treatment may reduce the incidence of complications. ⋯ The prevention of high intra-luminal pressures and excessive longitudinal traction across anastomoses may be aided by care in the administration of neostigmine, and possibly by the avoidance of morphine for provision of intra-operative and postoperative analgesia. Maintenance of, or improvements in, oxygen supply to an anastomosis may be achieved by avoiding hypoxia, hypocapnia and hypovolaemia, and by the use of regional anaesthetic techniques during surgery and/or in the post-operative period. In addition, sedative and analgesic therapy may influence the incidence of postoperative ileus, and may thus contribute to morbidity.