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Query: UMLS:C0010200 (cough)
 23,843 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Coughing on emergence can result in a number of undesirable side effects, including hypertension, tachycardia, tachyarrhythmias, increased intracranial pressure, and increased intraocular pressure. The efficacy of endotracheal spraying with lidocaine at the time of intubation in preventing coughing on emergence is unknown. In a double-blind placebo-controlled study, we randomized 50 ASA physical status I and II patients presenting for elective gynecological surgery <2 h duration to receive either endotracheal lidocaine 160 mg or placebo before intubation. Both groups were comparable in terms of demographics and intraoperative conditions. The incidence of coughing before tracheal extubation was less frequent in the lidocaine group (26%) than in the placebo group (66%, P < 0.01), as was the incidence after tracheal extubation (4% versus 30%, P = 0.022). This study supports the use of endotracheal lidocaine before intubation in patients undergoing general anesthesia for surgery <2 h duration where coughing on emergence is undesirable.
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PMID:Laryngotracheal topicalization with lidocaine before intubation decreases the incidence of coughing on emergence from general anesthesia. 1538 85

IV lidocaine is effective in suppressing the cough reflex of tracheal intubation, extubation, bronchography, bronchoscopy, and laryngoscopy. We investigated this effect of lidocaine on fentanyl-induced cough in 502 patients of ASA physical status I and II scheduled for elective surgery. The patients were assigned to 2 equal groups to receive either lidocaine 1.5 mg/kg or placebo (0.9% saline) over 5 s 1 min before the administration of fentanyl 3 mug/kg in a randomized and double-blind fashion. Coughs were classified as coughing and graded as mild (1-2), moderate (3-4), or severe (5 or more). The results of the study suggest that IV lidocaine 1.5 mg/kg, when administered 1 min before fentanyl, is significantly effective in suppressing fentanyl-induced cough compared to placebo (0.9% saline) (218 versus 165 patients) (P < 0.002) but without affecting the severity of cough (P > 0.05).
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PMID:Intravenous lidocaine suppresses fentanyl-induced coughing: a double-blind, prospective, randomized placebo-controlled study. 1556 56

Both dextromethorphan (DM) and IV lidocaine improve postoperative pain relief. In the present study, we evaluated the interaction of DM and IV lidocaine on pain management after laparoscopic cholecystectomy (LC). One-hundred ASA physical status I or II patients scheduled for LC were randomized into four equal groups to receive either: (a) chlorpheniramine maleate (CPM) intramuscular injection (IM) 20 mg and IV normal saline (N/S) (group C); (b) DM 40 mg IM and IV N/S (group DM); (c) CPM 20 mg IM and IV lidocaine 3 mg . kg(-1) . h(-1) (group L); or (d) DM 40 mg IM and IV lidocaine (group DM+L). All treatments were administered 30 min before skin incision. Analgesic effects were evaluated using visual analog scale pain scores at rest and during coughing, time to meperidine request, total meperidine consumption, and the time to first passage of flatus after surgery. Patients of the DM+L group exhibited the best pain relief and fastest recovery of bowel function among groups. Patients in the DM and L groups had significantly better pain relief than those in the C group. The results showed an additional effect on pain relief and a synergistic effect on recovery of bowel function when DM was combined with IV lidocaine after LC.
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PMID:The interaction effect of perioperative cotreatment with dextromethorphan and intravenous lidocaine on pain relief and recovery of bowel function after laparoscopic cholecystectomy. 1567 74

We designed this study to evaluate the effect of injection time and smoking on fentanyl-induced cough. Four-hundred-fifty ASA class I-II patients, aged 18-80 yr and weighing 40-90 kg, scheduled for elective surgery were included. All patients received fentanyl (100 microg for patients weighing 40-69 kg and 150 microg for patients weighing 70-90 kg for clinical convenience) via the proximal port of a peripheral IV line on the forearm. Patients were randomly assigned to 3 groups of 150 patients each. Patients in Group I received fentanyl injection over 2 s, whereas for patients in Groups II and III the fentanyl was injected at a constant rate over 15 s and 30 s, respectively. We recorded the number of coughs of each patient during and 30 s after fentanyl injection. The incidence of cough was 18% in group I, 8% in Group II, and 1.3% in Group III, significantly less (P < 0.05) with a longer injection time. Current smokers had a less frequent incidence of cough than nonsmokers; however, this effect was only significant in light smokers (<10 cigarettes per day or <10 smoking years or <10 pack-years). In conclusion, a longer injection time reduces the incidence of fentanyl-induced cough, and light smoking may be a protective factor against fentanyl-induced cough.
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PMID:Prolonged injection time and light smoking decrease the incidence of fentanyl-induced cough. 1611 73

We determine the feasibility of using the intubating laryngeal mask airway Fastrach (ILM) as a ventilatory device during emergence from anesthesia after use as an airway intubator in patients undergoing carotid endarterectomy. Thirty-five patients (ASA 2-3, 53-84 yr) were studied. Induction was with midazolam/fentanyl/etomidate and maintenance was with sevoflurane 1-2% in O2 33-50% and N2O. Neuromuscular blockade was with cisatracurium. Tracheal intubation was with a flexible lightwand via the ILM. After successful intubation, the ILM remained in the pharynx, but with the cuff deflated. After surgery, but before anesthesia was discontinued, baseline cardiovascular variables were recorded. The ILM cuff was then reinflated, the tracheal tube removed, the anesthesia breathing system connected to the ILM and anesthesia discontinued. Any changes in the cardiovascular variables greater than +/- 20% baseline values were noted from cuff reinflation to 1 minute after ILM removal. Any adverse respiratory (laryngospasm, coughing, gagging, stridor, SpO2 <94%, end-tidal carbon dioxide >45 mmHg, regurgitation/aspiration) or electrocardiographic (ST segment or rhythm changes) events were also noted. Patients were questioned about postoperative sore throat at 2 and 24 hr. ILM insertion and intubation through the ILM were successful in all patients. Adequate ventilation was achieved in all patients before intubation and after extubation. The mean (range) time taken from cuff reinflation to ILM removal was 9 (5-21) min. The rate pressure product remained within +/- 20% baseline values in all patients. There were no adverse respiratory or electrocardiographic events. There were no adverse neurological events. The surgical field was satisfactory. Postoperative sore throat occurred in 14% at 2 hr and 0% at 24 hr. We conclude that the ILM can be used as a ventilatory device for emergence from anesthesia after use as an airway intubator for carotid endarterectomy.
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PMID:The intubating laryngeal mask airway Fastrach for emergence after carotid endarterectomy. 1638 Dec 61

Trials of the King LT trade mark (LT, King Systems, Noblesville, IN) in controlled ventilation of the lungs have shown that it is an effective supraglottic airway device. We designed this study to evaluate the King LT regarding ease of insertion, position within the airway, and anatomic sealing properties during spontaneous ventilation in 50 ASA physical status I-III, Mallampati I-III, adult patients undergoing routine general anesthesia. Anesthesia was induced with up to 2 microg/kg fentanyl and 1.5-2 mg/kg propofol and maintained with 70% N2O/30%O2 and isoflurane. Insertion time, oropharyngeal leak pressures, fiberoptic position, and spirometry and hemodynamic data were recorded. Any complications were noted. Insertion was determined to be easy and a patent airway was achieved in all patients. First, second, and third attempt insertion rates were 86%, 12%, and 2%, respectively. Time to place the King LT trade mark was <5 s in 90% of cases. Baseline leak pressures were 31 +/- 8.8 cm H2O (17-50 cm H2O). Complications included laryngospasm (1) and coughing (3) on extubation. The incidence of sore throat at 1 h and 24 h postoperatively was 22% and 15%, respectively. The King LT trade mark is a simple and reliable supraglottic airway device for airway management during spontaneous ventilation.
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PMID:An evaluation of the insertion and function of a new supraglottic airway device, the King LT, during spontaneous ventilation. 1642 73

The aim of this study was to evaluate the incidence of coughing and breath holding in patients undergoing lumbar surgery extubated in prone position, supine position, or supine position with intravenous lidocaine before extubation. About 105 ASA I to II patients undergoing lumbar surgery were extubated in prone position in group P (n = 35), in supine position in group S (n = 35) and in supine position with intravenous 1.5 mg/kg lidocaine 10 minutes before extubation in group SL (n = 35). The number of patients who coughed and demonstrated breath holding was noted at emergence period. The time of loss of monitoring while repositioning the patient was recorded. The frequency of cough in group S was higher compared with group P at 1 minute after extubation (P = 0.008). Two and three minutes after extubation, the patients in group S demonstrated higher cough incidence compared with groups P and SL (P < 0.05). The incidence of breath holding in the first 6 minutes was lower in group P (n = 11) compared with groups S (n = 29) and SL (n = 25)(P = 0.001). The loss of monitoring time was longer in groups S (62 +/- 40 s) and SL (53 +/- 39 s) when compared with group P (0 s) (P < 0.01). Prone emergence and supine emergence with intravenous lidocaine provides an alternative approach to conventional supine emergence and prone extubation offers less cough and breath holding and continuation of monitoring.
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PMID:Comparison of different extubation techniques in lumbar surgery: prone extubation versus supine extubation with or without prior injection of intravenous lidocaine. 1679 42

Sixty ASA 1 and 2 children aged between 2 and 16 years who required tracheal intubation as part of anaesthesia for elective surgery were studied. We evaluated intubating conditions, haemodynamic responses and duration of apnoea following propofol 4 mg.kg-1 combined with either remifentanil 1.25 microg.kg-1 (group R), or suxamethonium 1 mg.kg-1 (group S). Tracheal intubation was graded as excellent, good or poor according to ease of laryngoscopy, vocal cord position, coughing, and jaw relaxation and limb movement. Thirty of group S and 28 of group R children were successfully intubated on the first attempt. Overall, intubation conditions were excellent or good in 26/30 (87%) patients in group S and 20/30 (67%) in group R (p<0.05). Mean apnoea time was 190 s in group S, and 362 s in group R (p<0.001). Heart rate increased in response to suxamethonium (p<0.01) and both systolic and diastolic blood pressure decreased in the remifentanil group (p<0.01).
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PMID:A comparison of intubating conditions in children following induction of anaesthesia with propofol and suxamethonium or propofol and remifentanil. 1722 5

A 43-year-old ASA PS II male patient developed a pneumothorax while breathing pontaneously through a supraglottic airway device during a general anaesthetic. Unexplained hypoxaemia occurred after an episode of coughing. Clinical examination appeared to be normal apart from the persistent oxygen desaturation. A pneumothorax was diagnosed in the post anaesthesia care unit by chest X-ray. The pneumothorax responded to conventional management and the patient made an uneventful recovery. We recommend a high index of suspicion in any patient who coughs and later has unexplained hypoxaemia during general anaesthesia, even if a supraglottic airway device has been inserted.
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PMID:Pneumothorax in association with spontaneous ventilation general anaesthesia--an unusual cause of hypoxaemia. 1856 11

Dentists usually face a common problem dealing with pediatric patients due to their high levels of anxiety and fear, associated with dental procedures. Such children are usually managed by various pharmacological methods. The efficacy and safety of conscious sedation, using intravenous short acting group of drugs (midazolam, propofol and ketamine) in uncooperative children, requiring oral rehabilitation was thus evaluated in this study. A total of 30 uncooperative children, aged 3-6 years, belonging to ASA I, II category formed the study group. The efficacy of the three group of drugs was evaluated on the basis of the onset of sedation, duration of action, side effects encountered, and the overall cooperative behavior of the child throughout the course of the procedure, after obtaining parental consent. Results showed that propofol was highly effective in terms of onset of sedation, although increased body movements and crying, pain on injection and intermittent cough was observed as the main side effects of the drug. Midazolam showed the longest duration of action, but was not very effective in terms of treatment completion due to increased movements and crying. Maximum cooperation during the procedure was obtained with ketamine and no adverse effects were encountered. We preferred ketamine from the results of our study and recommended future evaluation of ketamine in combination with other sedatives.
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PMID:Sedation in uncooperative children undergoing dental procedures: a comparative evaluation of midazolam, propofol and ketamine. 1827 61


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