Vital Flow

Your patient’s heart rate suddenly drops. Their blood pressure follows. Is it the anesthetic? The surgical stimulus? Or is the autonomic nervous system doing exactly what it was designed to do?

In this episode of Vital Flow, we break down the autonomic nervous system and the reflexes that can create dramatic physiologic changes in the OR. We’ll review sympathetic vs. parasympathetic control, the receptors and neurotransmitters that drive each pathway, and—most importantly—how this physiology actually shows up under anesthesia.

Then we tackle the reflexes every anesthesia provider should recognize: the baroreceptor reflex, Bainbridge reflex, Bezold-Jarisch reflex, oculocardiac reflex, Cushing reflex, and more. From sudden bradycardia after spinal anesthesia to tachycardia with increased venous return, we connect the textbook physiology to the monitor in front of you.

By the end, you’ll understand not just what these reflexes do, but why they happen, how to recognize them, and what they mean for your anesthetic management.

Whether you’re an SRNA reviewing physiology or a practicing CRNA looking for a high-yield refresher, this episode makes the ANS a little less intimidating—and a lot more clinically relevant.

Review of commonly used medications in anesthesia

Acute perioperative anaphylactic reaction requiring prompt recognition and treatment, including epinephrine administration and hemodynamic/airway support.

A review of Hemosphere

Review of ACLS for all providers

In this episode of Vital Flow, we break down the anesthesia preoperative assessment from the perspective of what actually matters in the OR. This isn’t just a checklist — it’s a focused physiologic evaluation designed to predict problems before they happen. We walk through airway assessment, cardiopulmonary risk, medication management, NPO status, obstructive sleep apnea, anticoagulants, GLP-1 medications, prior anesthesia complications, and the subtle patient clues that can completely change your anesthetic plan.

You’ll learn how experienced anesthesia providers think through a preop: identifying red flags, building backup plans, optimizing safety, and deciding what truly changes management versus what is simply charting noise. We also cover difficult airway predictors, common clearance misconceptions, functional status, frailty, aspiration risk, and how to tailor anesthetic technique to the individual patient in front of you.

Whether you’re a CRNA, SRNA, resident, or anesthesia-curious clinician, this episode is designed to help you approach every preop with more confidence, structure, and clinical reasoning — because the anesthetic often succeeds or fails before the patient ever reaches the OR.

In this episode of Vital Flow, we break down Hypertension from an anesthesia-first perspective—going far beyond the numbers on the monitor. This is your deep dive into what elevated blood pressure actually means for perfusion, autoregulation, and patient safety in the perioperative setting.

We walk through the pathophysiology that matters in real time—chronic vascular remodeling, shifted autoregulation curves, and the delicate balance between maintaining organ perfusion and avoiding end-organ damage. You’ll learn why “normal” blood pressure isn’t always safe for every patient, and how to think in terms of their baseline, not textbook values.

From pre-op considerations to intraoperative management, this episode gives you a clear, practical framework:

* When to proceed vs. delay

* Why holding ACE inhibitors and ARBs can change your entire induction

* How to anticipate and treat hypotension after induction

* Managing intraoperative hypertension without overcorrecting

* Choosing the right vasoactive agents based on physiology—not habit

We also connect the dots between hypertension and common OR challenges—bleeding, myocardial strain, stroke risk, and renal perfusion—so you can respond with intention, not reaction.

If you’ve ever asked yourself, “How tight should I control this pressure?” or “Am I treating the number or the patient?”—this episode will change how you think.

Vital Flow is educational pharmacology and physiology designed for anesthesia providers—focused on understanding the “why” behind every decision in the OR.

COPD and anesthesia

Second half of the arrhythmia deep dive

Arrhythmias deep dive part one