Intra abdominal pressure in normal patients is usually sub atmospheric to zero. But in obese patients INTRA abdominal pressure often is positive , may go upto 12 cms of water and raises with Raise in Sagittal abdominal diameter More abdominal fat deposition ( than other body parts ) BMI doesn't correlate. Raised INTRA abdominal pressure causes Impaired Venous drainage Atelectasis of lung ( baby lungs in morbidly obese ) , Decreased FRC , lung capacities etc Chronic IAP elevation is a cause for systemic hypertension ( compensation for venous stasis , which later leads to vascular stasis ) .
Gastro oesophageal reflux , 6) pseudo tumour cerebri 7) Hernia 8) Obstructive Sleep Apnea, etc Pneumo peritoneum with co2 , multiplies this problem . INTRA Abdominal pressure raises very high , if Adequate Muscle Relaxation was not given Guarding due to inadequate Analgesia, If surgeon…