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Related Experiment Video

Updated: Feb 15, 2026

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation

Published on: June 20, 2018

Transaortic septal myectomy using direct septal echography.

Kanji Matsuzaki¹, Toru Tsukada¹, Masataka Sato¹

¹Department of Cardiovascular Surgery, Hitachi General Hospital, Hitachi, Japan.

Interactive Cardiovascular and Thoracic Surgery

|January 12, 2018

Summary

Direct septal echography aids transaortic septal myectomy for hypertrophic obstructive cardiomyopathy. This technique visualizes septal thickness, improving surgical outcomes for left ventricular outflow tract obstruction.

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Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the Cryoballoon Ablation Catheter

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Published on: June 15, 2015

Area of Science:

Cardiology
Surgical Echocardiography

Background:

Hypertrophic obstructive cardiomyopathy (HOCM) causes left ventricular outflow tract (LVOT) obstruction.
Asymmetric septal hypertrophy is a key feature of HOCM.
Transaortic septal myectomy is a surgical treatment for LVOT obstruction.

Observation:

Direct septal echography was applied during transaortic septal myectomy.
A small, L-shaped probe was inserted into the right ventricle via the right ventricular outflow tract.
The probe directly visualized interventricular septum thickness and facilitated exposure through the aortic annulus.

Findings:

Direct septal echography provides direct visualization of the interventricular septum.
This technique allows for accurate assessment of septal thickness during surgery.
The method aids in exposing the septum for effective myectomy.

Implications:

Direct septal echography can enhance the success rate of transaortic septal myectomy.
This approach offers improved intraoperative guidance for HOCM surgery.
It may lead to better patient outcomes by ensuring adequate septal reduction.