ABSTRACT
BACKGROUND: The Pentax AWS and the Glidescope are new intubating devices.They were designed to provide a view of the glottis without alignment of the oral, pharyngeal and tracheal axis. The purpose of this study was to evaluate the effectiveness of the Pentax AWS and the Glidescope in comparison with the Macintosh laryngoscope, when performing tracheal intubation in patients with mallampati classification I or II. METHODS: Ninety patients presenting for surgery requiring tracheal intubation, and who were deemed easy for tracheal intubation of mallampati classification I or II were randomly assigned to undergo intubation using a Macintosh (Group M, n = 30), Pentax AWS (Group P, n = 30) or Glidescope (Group G, n = 30). Time to complete tracheal intubation and number of attempts until successful intubation were recorded. Noninvasive blood pressure and heart rate recorded before induction (PI), just before intubation (PT), 1 min and 5 min after intubation. Patients were assessed for postoperative sore throat at 6-12 h after surgery. RESULTS: Time to secure the airway with the Macintosh 13.0 (min 7, max 23.0) s was lesser than with the Pentax AWS 20.4 (8, 51.2) s and Glidescope 22.1 (10, 42.0) s. There were no significant differences in the rate of successful intubations and sore throat among the groups. There were significant increases in both mean arterial pressure and heart rate 1 min after intubation in all groups compare with PI. CONCLUSIONS: The Pentax AWS and the Glidescope had no specific advantage over the Macintosh laryngoscope for the patients with normal airway.
Subject(s)
Humans , Arterial Pressure , Axis, Cervical Vertebra , Blood Pressure , Glottis , Heart Rate , Imidazoles , Intubation , Laryngoscopes , Nitro Compounds , PharyngitisABSTRACT
BACKGROUND: Atlantoaxial subluxation (AAS) is a frequent manifestation of rheumatoid arthritis (RA). The instability of the cervical spine caused by AAS is potentially fatal condition under intubation for surgery. Anterior atlanto-dens interval (AADI) is a mirror of the risk for neural injury. We evaluated the change of AADI in atlantoaxial instability patients, before and after surgery. METHODS: The present study included 56 patients who underwent surgical procedures by AAS. Lateral radiographs were checked at preoperative, postoperative, 1 month later and 6 month later. AADI was measured using picture archiving communication system (PACS) system in each lateral radiograph. RESULTS: The value of AADI is 8.40 +/- 2.29 mm in preoperative period, 2.72 +/- 0.53 mm in postoperative, 2.68 +/- 0.53 mm in 1 month, and 2.70 +/- 0.51 mm in 6 months later. After cervical fusion, AADI immediately decreased 5.68 +/- 2.24 mm. There were significant decreased in postoperative, 1 month and 6 months, when compared with preoperative AADI. CONCLUSIONS: After the cervical fusion of AAS, the neurological and radiological stability was achieved by decrement of AADI. We concluded that the cervical fusion of AAS provide more safety during endotracheal intubation by decreased AADI.
Subject(s)
Humans , Arthritis, Rheumatoid , Intubation , Intubation, Intratracheal , Preoperative Period , SpineABSTRACT
Surgical ligation of PDA is an effective treatment for symptomatic infants who do not respond to treatment with indomethacin. Transfer of unstable infants to the operating room has been shown to be associated with various problems. Thus, we describe the anesthetic management of 5 extremely low birth weight (ELBW) infants who underwent surgical ligation of PDA in a neonatal intensive care unit (NICU). General anesthesia was induced by ketamine 1 mg/kg IV. Rocuronium was used for muscle relaxation. Anesthesia was maintained with continuous infusion of remifentanil 0.15-0.4 ug/kg/min with oxygen (in 2 cases) or continuous infusion of remifentanil 0.05-0.1 ug/kg/min and 0.4-1.0 vol% sevoflurane with oxygen (in 3 cases). It was safe and effective to perform bedside PDA ligation in the NICU. We describe the successful use of remifentanil with sevoflurane or remifentanil alone in 5 extremely low birth weight infants undergoing PDA ligation.
Subject(s)
Humans , Infant , Infant, Newborn , Androstanols , Anesthesia , Anesthesia, General , Ductus Arteriosus, Patent , Indomethacin , Infant, Low Birth Weight , Infant, Premature , Intensive Care Units , Intensive Care, Neonatal , Ketamine , Ligation , Methyl Ethers , Muscle Relaxation , Operating Rooms , Oxygen , PiperidinesABSTRACT
To achieve safe airway management, it is essential first to predict whether there will be difficulties in intubating or ventilating the patient's airway. An enlarged thyroid mass can produce a tracheal obstruction by compression or intraluminal invasion or both. We report two patients with thyroid cancer that obstructed the trachea by compression or invasion. There was no difficulty in endotracheal intubation of the patients with marked thyroid enlargement or in securing passage of the endotracheal tube through the compressed or narrowed portion of the trachea.