Health Condition 1: C00-C14- Malignant neoplasms of lip, oral cavity and pharynx Health Condition 2: C30-C39- Malignant neoplasms of respiratory and intrathoracic organs
Conditions
Interventions
Intervention1: NIL: NIL
Control Intervention1: NIL: NIL
Sponsors
Dr Jeson R Doctor
Dr Sohan Solanki
Dr Urmila Phad
Eligibility
Inclusion criteria
Inclusion criteria: 1. Adults 18 - 80 years’ old 2. American Society of Anesthesiologists (ASA) physical status classification system:1 or 2 3. Any patient undergoing any procedure under general anaesthesia with apnoea and apnoeic oxygenation. e.g. direct laryngoscopic/ microlaryngoscopic evaluation or laser surgery for head and neck cancer, tracheal dilatation or stenting done under apnoeic oxygenation.
Exclusion criteria
Exclusion criteria: 1. Any patients with respiratory ailments (e.g. chronic obstructive pulmonary disease, asthma) or poor pulmonary function- Objective parameter to identify poor effort tolerance is ability to climb less than 1 flight of stairs. 2. Patients with baseline saturation less than 95% on room air. 3. Expected difficulty in tracheal intubation due to insufficient mouth opening and trismus where an awake fibreoptic intubation is planned. 4. Patients with stridor or an obstructed airway. 5. Patients with nail polish or Henna on fingers and nails- in whom the pulse oximeter readings may not be accurate. 6. No informed consent 7. Inability to wear the sensor due to deformity or hypoperfusion of the fingers
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To find out the time lag between the ORI alarm at 0.24 and Sp02 to drop to 95%. Timepoint: The corresponding SpO2 and ORI values will be recorded every 5 seconds for 3 minutes. In case the ORI and SpO2 does not drop in 3 minutes the time at which ORI drops to 0.24 and Spo2 drops to 95% will be noted from the time of apnoea. The time interval between the ORI alarm and the fall in SpO2 to 95% will also be recorded. | — |
Secondary
| Measure | Time frame |
|---|---|
| Time taken, for the ORI to rise up to 0.24 and the SpO2 to rise to 100% after resuming ventilation and the time difference between the two.Timepoint: Oxygenation with anaesthesia breathing circuit will be resumed once the patient starts desaturating to less than 95%. The time taken for the ORI to rise back to 0.24 and SpO2 to rise to 100% after reoxygenation will also be noted in seconds from the time of resuming of ventilation of the patient. | — |
Countries
India
Contacts
Public ContactDr Urmila Phad
Tata Memorial Hospital Mumbai
Outcome results
None listed