- Perioperative acute renal failure is a common complication of major surgery and is associated with increased morbidity and mortality.
- Ischaemia- or toxin-mediated acute tubular necrosis is the primary cause of perioperative acute renal failure.
- The key non-pharmacological strategies are intravascular volume expansion, maintenance of renal blood flow and renal perfusion pressure, avoidance of nephrotoxic agents, careful glycaemic control, and the appropriate management of post-operative complications.
- At present, there is no firm evidence to suggest that the use of any specific pharmacological intervention is clinically beneficial.
- Dopamine infusion has not been shown to prevent acute renal failure, avert the need for renal replacement therapy, or reduce mortality, and should not be administered solely for renal protection.
Anesthesia for Pregnant woman with Pulmonary Hypertension is a real challenge for anesthesiologist. It is very crucial to remember the pathophysiology of pulmonary hypertension in pregnant women and to avoid some practices that will worsen the cardiac status. 1-Avoid single shot spinal anesthesia. Some authorities consider pulmonary hypertension as absolute contraindication for single shot spinal anesthesia specially in patients with NYHA III ,IV. Spinal anesthesia causes major hemodynamic instability(decrease SVR, decrease VR, decrease in CO) The preferred neuroaxial techniques are (epidural anesthesia and CSE with minimal spinal dose) 2-Avoid PAC. Pulmonary Artery catheters insertion may lead to pulmonary artery rupture or thrombosis. TEE is better cardiac monitor/Arteial line is mandatory. 3-Avoid Nitrous oxide in gas mixture.N2O increase the PVR 4-If MV to be started, avoid High TV and PEEP 5-Avoid Oxytocin Boluses, or rapid administration of Pitocin. Oxytocin causes ...
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