A Comparative Study of the Baska Mask Vs Proseal Laryngeal Mask Regarding Airway Sealing Pressure
Condition: Baska Mask
Study type: Interventional

Summary: 
      Baska mask air way(BM) in comparative study with Proseal laryngeal mask airway (PLMA)
      regarding performance of Baska mask improves the safety and efficacy of airway management for
      in patients undergoing general anesthesia by mechanical ventilation confirmation of position
      by fiber optic view of glottis opening and success of gastric tube insertion , Airway sealing
      pressure, Leak fraction, insertion time and "overall insertion" success rates, and
      post-operative complications (airway trauma, hoarseness, sore throat and Dysphagia ).
    

Detailed description: 
      Maintenance of a patent airway is a major responsibility for the anesthesiologists,
      interruption of gas exchange, even for a few minutes, can result in catastrophic outcomes
      such as brain damage or death.

      Supraglottic airway devices are devices that ventilate patients by delivering anaesthetic
      gases/oxygen above the level of the vocal cord. Since the development of the laryngeal mask
      airway, many other supraglottic devices have been introduced in the clinical practice of
      airway management, trying to offer a simple and effective alternative to endotracheal tube.

      However, following experience with such simple cases, clinicians soon become comfortable with
      more complex cases, such as cases of longer duration, cases with sicker patient reported
      favorable outcomes in safety profile, risk, ease of insertion, recovery of patients and cost
      analyses. However, there is an under reporting of complications aris¬ing during ventilation
      with this device and the risk factors associated with such complications in adult patients.
      These include Hypoxia, laryngospasm, and difficulty with insertion, suboptimal ventilation,
      bronchospasm, aspiration, desaturation, hy¬potension and conversion to intubation with ETT.
      These can be significantly serious and life threatening
    

Intervention name(s): Group A : Baska Mask Airway; Group B: Proseal Laryngeal Mask Airway
Intervention type(s): Device; Device
Intervention description(s): Size selection is based on the manufacturer's recommendation of weight-based estimate plus clinical judgment. The Baska Mask is available in four sizes: size three (30 to 50 kg), size four (50 to 70 kg), size five (70 to 100 kg),The membranous cuff of the Baska Mask appears bulkier than the equivalent inflatable cuff on cuffed laryngeal masks. The mask can easily be decreased in size during insertion by compressing the proximal, firmer part of the mask below the airway tube, between the thumb and two fingers; Proseal LMA (size 3,4,5) was used for ventilation according of patient body weight.Size selection is based on the manufacturer's recommendation of weight-based estimate plus clinical judgment.
Allocation: Randomized
Intervention model: Parallel Assignment
Intervention model description: Following approval from EL Kasr Al-Ainy teaching hospital ethical committee and an informed patient consent, the investigators enrolled 74adult patients ASA I and II, non-obese (BMI<30) ranging from18-45 yrs. of age, Patients underwent a variety of elective surgical procedures in the supine position with SAD placement for ≤ 2 hours duration. Patients randomly divided by computer designed lists and then concealed in closed envelopes into 2 equal groups:
Group A (n= 37), in which Baska Mask Airway _ (size 3,4,5) will used for ventilation according of patient body weight.
Group B (n= 37), in which Laryngeal Mask Airway- Proseal LMA_ (size 3,4,5) was used for ventilation according of patient body weight.
Masking: Double (Participant, Care Provider)
Primary purpose: Diagnostic