Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
To study the effect of high flow nasal cannula in comparisons with nasoprong used intraoperatively in patients oxygenation status
To observe the effect of high flow nasal cannula used intraoperatively compared to normal oxygen therapy (nasoprong) at a same fraction of inspired oxygen (FiO2) in elderly patients who are going for orthopaedic surgeries under central neuraxial block.
oxygenation will be access with intermittent blood gas. atelectasis will be access via chest x-ray , compared to a baseline chest x-ray, validated by a blinded radiologist
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| patient receiving high flow nasal cannula (A) | Experimental | Patient will be put on high flow nasal cannula at a fixed flow of 50L/min, at Fio2 0.3% throughout surgery. Oxygen therapy will be discontinued once surgery ends. FiO2 will be titrated by 0.1 increment to a SpO2 of ≥94%. |
|
| patient receiving nasoprong oxygen 2 L/min | Active Comparator | Patient will be put nasoprong oxygen 2L/min throughout surgery. Oxygen therapy will be discontinued once surgery ends. FiO2 will be titrated by 0.1 increment to a SpO2 of ≥94%. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| high flow nasal cannula | Device | high flow nasal cannula provides heated and humidified gas to the airways via nasal prongs at a prescribed accurate fraction of inspired oxygen (FiO2) ranging from 0.21 to 1.0 and with a higher flow rate of up to 60 litres per minute |
| Measure | Description | Time Frame |
|---|---|---|
| Incident of intraoperative desaturation | desaturation is taken as any spO2 <94% | From induction time until end of surgery |
| Patient comfort on high flow nasal cannula | Patient rate comfort level using Visual Numerical Scale. The scale of 1 to 5 with 1 being extreme discomfort, 3 neutral and 5 extreme comfort | At end of surgery till discharge to ward (recovery area) |
| Atelactasis | Incident of postoperative atelectasis by compraring the preoperative and postoperative chest x ray by a radiologist | From end of operation until 24 hours post surgery |
| Measure | Description | Time Frame |
|---|---|---|
| Length of hospital stay | Duration of hospital admission from the time of patient admitted to the hospital, until discharge from hospital | Time of hospital admission to time of discharge up to 30 days which ever come first |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Syarifah noor nazihah binti sayed masri, MD | National University of Malaysia | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Universiti Kebansaan Malaysia | Cheras | Kuala Lumpur | 56000 | Malaysia |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
there will be no masking except for the radiologist who compares the postoperative chest x-ray with the baseline
| nasoprong oxyen 2Litres per minute | Device | nasoprong @L/min will deliver approximately a FiO2 of 0.3. subsequently, if incremental O2 is needed, patient will be provided with ventimask 40% and so forth |
|
| ID | Term |
|---|---|
| D001261 | Pulmonary Atelectasis |
| D000860 | Hypoxia |
| ID | Term |
|---|---|
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D012818 | Signs and Symptoms, Respiratory |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
Not provided
Not provided