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Related Concept Videos

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IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
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Aortic Regurgitation I: Introduction01:15

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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...
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Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
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Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
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Related Experiment Video

Updated: Feb 22, 2026

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Misconnected: Valve Failure from an Unexpected Chordal Insertion.

Catarina Novo1, Mariana Campos1, Paulo Neves1

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Summary
This summary is machine-generated.

A rare case of aberrant chordae tendineae causing severe mitral regurgitation was successfully treated with surgical repair. This valve-sparing procedure resulted in excellent outcomes and a full recovery for the patient.

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Area of Science:

  • Cardiovascular Surgery
  • Cardiac Anatomy
  • Valvular Heart Disease

Background:

  • Severe mitral regurgitation can lead to heart failure.
  • Mitral valve repair aims for valve preservation.
  • Aberrant chordae tendineae are a rare cause of mitral valve dysfunction.

Purpose of the Study:

  • To report a rare case of aberrant chordae tendineae causing mitral regurgitation.
  • To describe the surgical technique for correction and valve repair.
  • To highlight the successful clinical outcome of valve preservation.

Main Methods:

  • Transthoracic echocardiography (TTE) for initial diagnosis.
  • Intraoperative inspection and identification of aberrant chordae.
  • Excision of aberrant chordae and reconstruction with neochords (e.g., Gore-Tex).
  • Mitral annuloplasty ring placement.
  • Intraoperative transesophageal echocardiography (TEE) for functional assessment.

Main Results:

  • Identification of an aberrant chordae tendineae inserting into the left atrial wall.
  • Successful excision of the aberrant chordae and reconstruction with neochords.
  • Placement of a mitral annuloplasty ring.
  • Excellent mitral valve function with minimal residual regurgitation confirmed by TEE.
  • Uneventful postoperative recovery and discharge on postoperative day 4.

Conclusions:

  • Aberrantly inserted chordae tendineae are an exceedingly rare finding.
  • This condition can cause significant mitral regurgitation and heart failure.
  • Prompt surgical recognition and correction can lead to successful valve preservation and excellent clinical outcomes.