Effects of Magnesium Sulfate and Labetalol Infusion Used for Induced Hypotension on Peripheral Perfusion and Postoperative Pain in Nasal Surgeries
Effects of Magnesium Sulfate and Labetalol Infusion Used for Induced Hypotension on Peripheral Perfusion and Postoperative Pain in Nasal Surgeries
One of main risk of controlled hypotension during nasal surgeries is impaired perfusion. Peripheral perfusion of non-vital organs usually impaired earlier than vital organs. So, evaluation of perfusion of non-vital organ is considered to be adequate measure of patient safety during surgery.
Many hypotensive agents such as dexmedetomidine, B blockers, magnesium sulfate and nitroglycerine had been used but we are in need to investigate its effects on peripheral perfusion.
Postoperative pain related to nasal surgeries due to surgical trauma itself which induces the release of inflammatory mediators from neuronal and immune cells resulting in peripheral and central sensitization significantly affects recovery of patients. Magnesium sulfate and labetalol have analgesic actions besides their hypotensive effects but with different mechanisms.
To compare between the effects of magnesium sulfate and labetalol infusion during induced hypotension on peripheral perfusion and postoperative pain in nasal surgeries
OBJECTIVES:
To measure peripheral perfusion index (PPI) as an indicator for peripheral perfusion To calculate the total postoperative rescue analgesic requirements.
Double -blind randomized comparative Clinical Study. All Patients will be randomly allocated into two equal groups (group M and Group L).
Using computer generated randomization table, each group will be 25 patients.
Inclusion Criteria:
Exclusion Criteria: