How far is the left circumflex coronary artery from the mitral annulus?

General Thoracic and Cardiovascular Surgery
Koji MiuraTakehiko Matsuo


The relationship between the distance from the mitral annulus to the left circumflex coronary artery (LCX) and iatrogenic LCX injury has been questioned. This study was designed to determine the high-risk sites of LCX injury with an anatomical approach using multiple detector-computed tomography (MDCT) scanning taken before mitral valve annuloplasty (MVA). The purpose of this study is to prevent LCX injury in patients unable to receive MDCT before mitral valve surgery. In 2018, we performed MVA on 59 patients, 52 of whom had undergone preoperative MDCT scanning. We retrospectively analyzed the MDCT images of these 52 patients and measured the shortest distance from the mitral annulus to the LCX in three dimensions. Also, we divided the mitral annulus into 12 clockwise areas (A0-A11) to identify the exact location. The site of closest proximity and their numbers of patients were as follows: A6, 1 patient; A8, 2 patients; A9, 32 patients; and A10, 17 patients. Nine (17.3%) of the 52 patients had the shortest distance of less than 2 mm. The shortest distance according to the dominance of coronary artery showed no significant difference (p = 0.81). The site of closest proximity from the mitral annulus to the LCX was concentrated on...Continue Reading


Nov 1, 1995·The Annals of Thoracic Surgery·A F CarpentierD F Loulmet
Apr 29, 1965·The New England Journal of Medicine·F H ELLISJ W KIRKLIN
Jan 10, 2006·The Journal of Thoracic and Cardiovascular Surgery·Tayfun AybekAnton Moritz
Aug 12, 2008·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Stéphane AubertChristophe Acar
Aug 28, 2012·European Heart Journal·UNKNOWN Joint Task Force on the Management of Valvular Heart Disease of the European Society of Cardiology (ESC)Marian Zembala
Feb 20, 2016·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·Nick HiltropWalter Desmet
Jun 21, 2017·The Journal of Thoracic and Cardiovascular Surgery·Gonçalo F CoutinhoManuel J Antunes
Feb 16, 2019·Journal of the Saudi Heart Association·Aysha HusainAli AlMasood

❮ Previous
Next ❯


Oct 16, 2021·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Noriaki KishimotoToshihiko Shibata

❮ Previous
Next ❯

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.


Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.