Direct Innominate Artery Cannulation as a Sole Systemic and Cerebral Perfusion Technique in Aortic Surgery

Alireza Kashani1, Mathew Doyle1, Matthew Horton1

  • 1St. George Public Hospital, Sydney, NSW, Australia.

Insights

Direct innominate artery cannulation offers a novel approach for thoracic aortic surgery. This technique provides both systemic and selective antegrade cerebral perfusion, addressing challenges in arterial access and brain protection.

Area of Science:

  • Cardiovascular Surgery
  • Thoracic Aortic Surgery
  • Cerebral Perfusion

Background:

  • Arterial cannulation in thoracic aortic surgery is complex due to surgical site and cerebral protection needs during circulatory arrest.
  • Common cannulation sites (ascending/descending aorta, axillary, carotid, femoral arteries) have limitations and risks.
  • The innominate artery presents a viable alternative for cannulation, either directly or via a graft.

Purpose of the Study:

  • To present a novel technique for sole direct innominate artery cannulation.
  • To demonstrate its capability for providing systemic and selective antegrade cerebral perfusion during aortic surgery.

Main Methods:

  • Direct cannulation of the innominate artery.
  • Utilizing this site for both systemic circulation and targeted cerebral perfusion.

Main Results:

  • Successful implementation of sole direct innominate artery cannulation.
  • Achieved both systemic and selective antegrade cerebral perfusion.

Conclusions:

  • Direct innominate artery cannulation is a feasible and effective alternative for thoracic aortic surgery.
  • This technique enhances cerebral protection and addresses limitations of traditional cannulation sites.

Related Concept Videos

Overview of Systemic Arteries01:11

Overview of Systemic Arteries

The human body is a complex, well-organized machine, and at the heart of its operations lies the circulatory system. This network of blood vessels, which includes systemic arteries, plays a vital role in maintaining life by transporting nutrients, oxygen, and waste products to and from cells throughout the body.
Systemic circulation is the part of the cardiovascular system that carries oxygenated blood away from the heart to the body's tissues and returns deoxygenated blood back to the...
2.0K
Second Order systems II01:18

Second Order systems II

In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
408
First Order Systems01:21

First Order Systems

First-order systems, such as RC circuits, are foundational in understanding dynamic systems due to their straightforward input-output relationship. Analyzing their responses to different input functions under zero initial conditions reveals significant insights into system behavior.
When a first-order system is subjected to a unit-step input, its response is characterized by its transfer function. By applying the Laplace transform of the unit-step input to the transfer function, expanding the...
430
Second Order systems I01:20

Second Order systems I

A servo system exemplifies a second-order system, featuring a proportional controller and load elements that ensure the output position aligns with the input position. The relationship between these components is described by a second-order differential equation. Applying the Laplace transform under zero initial conditions yields the transfer function, showing how inputs are converted to outputs in the system.
By reinterpreting the system, one can derive the closed-loop transfer function, which...
598
Directing Effect of Substituents: meta-Directing Groups01:09

Directing Effect of Substituents: meta-Directing Groups

Substituents on the benzene ring that direct an incoming electrophile to undergo substitution at the meta position are called meta directors. All meta directors either have a positive charge on the atom directly bonded to the ring or a partial positive charge. These groups function by withdrawing electrons from the ring through inductive and resonance effects. Consider the carbocation intermediates formed upon the addition of an electrophile on nitrobenzene at the...
6.0K
Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
634