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      Aspiration pneumonia caused by fentanyl-induced cough -a case report-

      case-report

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          Abstract

          Although fentanyl-induced cough is generally transient and benign, it can give rise to serious problems in patients to whom increasing intracranial, intraocular or intraabdominal pressures may create dangerous situations. This case demonstrates aspiration pneumonia as a complication, exhibiting severe cough induced by intravenous injection of fentanyl.

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          Most cited references16

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          Mechanism of stimulation of type J pulmonary receptors.

          1. The responses of type J pulmonary receptors (identified according to existing criteria) were studied in anaesthetized cats by recording impulses in individual vagal afferent fibres whose conduction velocity ranged from 0.8 to 7 m/sec.2. Measurements of actual latencies between insufflation of halothane or ether into the lungs and the excitation of the endings, and the latencies before and after circulatory arrest have established that the endings are located in the interstitial tissues close to the pulmonary capillaries. Mainly for this reason, the term juxta-pulmonary capillary receptors (i.e. type J receptors) has been applied to these endings in preference to the term K deflation receptors used hitherto.3. The endings were stimulated by pulmonary congestion produced by occlusion of the aorta or left a-v junction for short periods. They were markedly stimulated during pulmonary congestion following injection of alloxan (150 mg/kg) or the addition of chlorine to the inspired air. This excitation was associated with a marked rise in pulmonary artery pressure and the occurrence of pulmonary oedema. However, the actual onset of excitation occurred some time after the rise in pressure and it was in fact more closely related to fall in pulmonary compliance. The frequency of discharge averaged over about 10-20 sec (in order to take the periods of relative inactivity into account) was 7.5 impulses/sec in 10 fibres (range 0.6-19 impulses/sec; S.D. 6.3). This is intense stimulation of the endings and the congestion so produced is therefore regarded as a severe stimulus for the endings.4. The pattern of excitation was variable. In some fibres the activity consisted of periodic bursts of impulses which seemed to be set off during the deflation phase of artificial respiration, sometimes during the inflation phase. This periodic activity was not due to contraction of smooth muscle as the endings are not stimulated following injection of histamine (into the right ventricle) which is known to stimulate smooth muscles in the alveolar ducts and respiratory bronchioles.5. It is postulated that the actual stimulus for the endings is a rise in interstitial pressure or volume produced by a rise in pulmonary capillary pressure. Evidence has been gathered to show that the latter rises during muscular exercise; this rise must stimulate the endings. It was therefore postulated that stimulation of the endings should cause reflex inhibition of limb muscles (for terminating exercise).
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            Salbutamol, beclomethasone or sodium chromoglycate suppress coughing induced by iv fentanyl.

            Fentanyl, a synthetic opioid, is a popular choice amongst anesthesiologists in the operating room. Preinduction iv fentanyl bolus is associated with coughing in 28-45% of patients. Coughing due to fentanyl is not always benign and at times may be explosive requiring immediate intervention. We have studied the role of aerosol inhalation of salbutamol, beclomethasone and sodium chromoglycate in preventing fentanyl induced coughing and have compared their efficacy. Two hundred patients aged 18-60 yr, undergoing elective laparoscopic cholecystectomy were randomized into four groups of 50 each. Group I served as control, while Groups II, III and IV received an aerosol inhalation of salbutamol, beclomethasone or sodium chromoglycate 15 min prior to entering the operating room. Following iv fentanyl (2 micro g x kg(-1)) the incidence of cough was recorded and graded as mild (1-2), moderate (3-5) and severe (> 5) depending on the number of coughs observed. Results were analyzed using 'z' and Fischer's Exact test. A P value of /= 0.05). The use of salbutamol, beclomethasone or sodium chromoglycate aerosol 15 min prior to iv fentanyl administration minimizes fentanyl-induced coughing.
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              Explosive coughing after bolus fentanyl injection.

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                Author and article information

                Journal
                Korean J Anesthesiol
                Korean J Anesthesiol
                KJAE
                Korean Journal of Anesthesiology
                The Korean Society of Anesthesiologists
                2005-6419
                2005-7563
                September 2013
                25 September 2013
                : 65
                : 3
                : 251-253
                Affiliations
                Department of Anesthesiology and Pain Medicine, Hallym University College of Medicine, Anyang, Korea.
                Author notes
                Corresponding author: Soo Kyung Lee, M.D., Department of Anesthesiology and Pain Medicine, Hallym University College of Medicine, 896, Pyeongchon-dong, Dongan-gu, Anyang 431-070, Korea. Tel: 82-31-380-3945, Fax: 82-31-385-3244, agnetask@ 123456yahoo.co.kr
                Article
                10.4097/kjae.2013.65.3.251
                3790037
                24101960
                0774f9ce-1633-483b-b6f2-061c27c6c205
                Copyright © the Korean Society of Anesthesiologists, 2013

                This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 06 August 2012
                : 30 September 2012
                : 02 October 2012
                Categories
                Case Report

                Anesthesiology & Pain management
                aspiration,cough,fentanyl,pneumonia,vomiting
                Anesthesiology & Pain management
                aspiration, cough, fentanyl, pneumonia, vomiting

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