title: Agents for facilitation of laryngeal mask airway insertion: a comparative study between thiopentone sodium and propofol.
abstract: BACKGROUND
  Development of endotracheal intubation to avoid deleterious effect on hemodynamic responses occurring during laryngoscopy and intubation compelled researchers to venture into alternative measures of airway management with subtle hemodynamic responses. This study was carried out to compare the conditions for laryngeal mask airways LMA insertion with widely used intravenous induction agents, thiopentone sodium and propofol, and also to compare the undesired responses occurring during LMA insertion with them.
  
  
  METHODS
  The study was prospective, randomized, and double blind. All patients selected were randomly allocated into two groups: Group 1 (propofol) and group II (thiopentone). Preinduction heart rate and blood pressure were recorded. Sixty healthy adult patients of either sex belonging to age group of 20-60 years and ASA grade I or II, to undergo surgery less than 1 h, were selected for the study-Patients were randomly allocated in two groups, 30 in each group. Premedication with midazolam 0.04 mg/kg and fentanyl 2 mg/kg done in both groups. Thereafter, group 1 was induced with 2 mg/kg of propofol and group 2 with 5 mg/kg of thiopentone sodium.
  
  
  RESULTS
  The study revealed that, ease of insertion of LMA, was statistically significantly greater in group 1 when compared with group 2 (P 0.05). The time required for successful insertion of LMA was lesser in group 1 patients (53.8 ± 7.77 s) than in group 2 patients (84.7 ± 16.54 s) (P 0.001).
  
  
  CONCLUSIONS
  Severity of undesired responses were more in group 2, as incremental boluses of respective induction agents were required in 20% patients in thiopentone group compared to only 6% patients in propofol group and 13% of patients in thiopentone group required rescue succinylcholine.
authors.affiliation: Department of Anesthesiology, Kali Pradip Choudhury Medical College and Hospital, Kolkata, India.
authors.forename: Janmejoy
authors.initials: J
authors.lastname: Sengupta
authors.forename: Mohua
authors.initials: M
authors.lastname: Sengupta
authors.forename: Tulsi
authors.initials: T
authors.lastname: Nag
mesh_terms: D000759:Adjuvants, Anesthesia / Q000008:administration & dosage; D000328:Adult; D000367:Age Factors; D000701:Analgesics, Opioid / Q000008:administration & dosage; D018686:Anesthetics, Intravenous / Q000008:administration & dosage*; D001794:Blood Pressure / Q000187:drug effects; D015992:Body Mass Index; D004311:Double-Blind Method; D017558:Elective Surgical Procedures; D006339:Heart Rate / Q000187:drug effects; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D007262:Infusions, Intravenous; D017214:Laryngeal Masks; D008297:Male; D008875:Middle Aged; D015742:Propofol / Q000008:administration & dosage*; D012737:Sex Factors; D013874:Thiopental / Q000008:administration & dosage*; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D000759:Adjuvants, Anesthesia; D000701:Analgesics, Opioid; D018686:Anesthetics, Intravenous; D013874:Thiopental; D015742:Propofol