Health Condition 1: O- Medical and Surgical
Conditions
Interventions
Intervention1: Valsalva Manoeuvre in pressure control mode of ventilation: Total duration of intervention would be 20 seconds
Pressure Control mode
40cmH2O pressure-cap setting
Positive end expiratory pressure 35cmH2O
Respiratory rate 3 breaths/minute
Control Intervention1: Valsalva Manoeuvre in manual/spontaneous mode of ventilation: Total duration of application of comparator agent would be for 20 seconds
Manual
Adjustable Pressure Limiting valve partially closed to 40mmHg.
Manually compression of the reservoir bag
Compression maintained for 20seconds duration
Sponsors
Rajiv Gandhi Cancer Institute and Research Centre
Dr Rajiv Chawla
Eligibility
Inclusion criteria
Inclusion criteria: 45kg -80kg body weight Undergoing head and neck surgery Requiring an arterial line placement
Exclusion criteria
Exclusion criteria: Consent not given Aortic stenosis Hypertrophic obstructive cardiomyopathy Recent myocardial infarction Supraventricular tachycardia with haemodynamic instability Glaucoma Retinopathy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Peak inspiratory pressure, Inferior venacava horizontal diameter, Inferior venacava vertical diameterTimepoint: 1min before initiating Valsalva manoeuvre, 20seconds after initiating Valsalva manoeuvre, 2 minutes after initiating the Valsalva manoeuvre | — |
Secondary
| Measure | Time frame |
|---|---|
| Heart rate; Systolic blood pressure Diastolic blood pressure Mean arterial pressureTimepoint: 1min before initiating Valsalva manoeuvre, exact time-point of initiating Valsalva manoeuvre, 20 seconds after initiating the Valsalva manoeuvre, 1 min after initiating the Valsalva manoeuvre, 2 min after initiating the Valsalva manoeuvre, 5 min after initiating the Valsalva manoeuvre | — |
Countries
India
Contacts
Public ContactDr Shagun Bhatia Shah
Rajiv Gandhi Cancer Institute and Research Centre
Outcome results
None listed