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Evidence-based clinical reasoning for perioperative decision making. Covers coagulation, cardiac risk, echocardiography, airway, and pulmonary assessment.

Coagulation

Perioperative Coagulation

Interpret ROTEM, TEG, and Quantra patterns for perioperative bleeding. Understand viscoelastic testing and goal-directed hemostatic therapy.

Cardiac

Perioperative Cardiac Physiology

Assess perioperative cardiac risk with case-based reasoning. Integrate RCRI, functional capacity, and BNP before non-cardiac surgery. For anesthesiologists.

Pulmonary

Postoperative Pulmonary Complications

Understand postoperative pulmonary complications — ARISCAT scoring, ABG interpretation, and PPC prevention strategies for perioperative clinicians.

Airway

Perioperative Airway Assessment

Predict difficult airways using LEMON criteria, guide awake intubation decisions, and plan for CICV emergencies. Clinical reasoning for anesthesiologists.

Echo

Perioperative Echocardiography

Interpret TTE for preoperative screening and TEE for intraoperative hemodynamics. Assess AS, MR, TR, AR, and MS severity with clinical reasoning.

Perioperative Guide

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By Kozo Watanabe, MD

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© 2026 Perioperative Guide. For clinical reference only. This tool does not replace professional medical judgment. Always consult current guidelines and institutional protocols.