Anaesthesia for the patient with impaired renal function

Area of Science:

• Nephrology
• Anesthesiology
• Critical Care Medicine

Background:

• Patients with renal disease face heightened risks of kidney function decline and acute tubular necrosis during anesthesia and surgery.
• Renal failure is associated with systemic physiological changes, including impaired oxygen delivery, metabolic disturbances, and compromised coagulation and immune defenses.
• These patients have an increased risk of cardiac and cerebrovascular events.

Purpose of the Study:

• To outline anesthetic considerations for patients with renal disease.
• To highlight strategies for preserving renal function during surgical procedures.
• To discuss the management of associated systemic complications.

Main Methods:

• Review of anesthetic techniques and agents suitable for patients with renal impairment.
• Emphasis on optimal fluid management, monitoring, and the use of renal-protective agents like mannitol and dopamine.
• Discussion of drug selection, with particular caution advised for certain agents (e.g., pethidine, suxamethonium, non-depolarizing neuromuscular relaxants).

Main Results:

• Specific anesthetic strategies can maintain renal blood flow and preserve renal function in patients with renal disease.
• Halothane is identified as the preferred volatile anesthetic agent.
• Postoperative oxygen therapy and close cardiorespiratory monitoring are essential.

Conclusions:

• Careful anesthetic management is vital for patients with renal disease undergoing surgery.
• Proactive measures, including appropriate fluid management and drug selection, can mitigate risks.
• Vigilant postoperative care is necessary to ensure patient stability.