scholarly journals Congenital absence of anterior papillary muscle of the tricuspid valve and surgical repair with artificial chordae

2016 ◽  
pp. ivw327
Author(s):  
Chuan Tian ◽  
Shiwei Pan
Keyword(s):  
Tricuspid Valve ◽  
Papillary Muscle ◽  
Surgical Repair ◽  
Congenital Absence ◽  
Artificial Chordae ◽  
Anterior Papillary Muscle

scholarly journals A diagnostic odyssey: detection of an unusual anterior papillary muscle of the tricuspid valve

2010 ◽  
Vol 11 (5) ◽  
pp. E19-E19
Author(s):  
Patric Biaggi ◽  
Matthias Greutmann ◽  
Andrew Crean ◽  
Melitta Mezody ◽  
Harry Rakowski
Keyword(s):  
Tricuspid Valve ◽  
Papillary Muscle ◽  
Diagnostic Odyssey ◽  
Anterior Papillary Muscle

Repair of Congenitally Absent Chordae in a Tricuspid Valve Leaflet with Hypoplastic Papillary Muscle Using Artificial Chordae

2010 ◽  
Vol 25 (6) ◽  
pp. 737-739 ◽  
Author(s):  
Fumiaki Shikata ◽  
Mitsugi Nagashima ◽  
Kazuhisa Nishimura ◽  
Fuminaga Suetsugu ◽  
Kanji Kawachi
Keyword(s):  
Tricuspid Valve ◽  
Papillary Muscle ◽  
Valve Leaflet ◽  
Artificial Chordae

A cadaveric study on chordae tendinae of human tricuspid valve

2021 ◽  
Vol 8 (3) ◽  
pp. 226-229
Author(s):  
Chandragirish S ◽  
Harsha B R ◽  
Girish V Patil
Keyword(s):  
Tricuspid Valve ◽  
Papillary Muscle ◽  
Human Heart ◽  
Free Edge ◽  
Papillary Muscles ◽  
Post Mortem ◽  
Valve Diseases ◽  
Anterior Papillary Muscle ◽  
Modern Technologies ◽  
Formalin Fixed

Aim of the present study was to observe the types of chordae tendinae present in tricuspid valve of human heart. Morphology of chordae tendinae in tricuspid valve gains utmost importance in cardiac surgeries in recent times because advent in modern technologies in treatment of tricuspid valve diseases.This study was carried out on 96 normal formalin fixed human post-mortem heart specimens. Types of chordae tendinae observed on the basis of their attachments.Chordae tendinae were observed in all specimens. Five types of chordae tendinae were identified namely rough zone, free edge, fan shaped, deep and basal chordae. Anterior papillary muscle was seen providing attachment to 2 to 9; Posterior papillary muscles were seen with 1 to 6 and Septal papillary muscles provided attachment to 1 to 4 chordae tendinae.We hope this study will serve to understand the tricuspid valve complex and types of different chordae tendinae better and it will help in various surgical procedures done on tricuspid valve.

scholarly journals A Case of Severe Tricuspid Regurgitation Related to Traumatic Papillary Muscle Rupture

2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Ruchika Meel ◽  
Bongane Ngutshane ◽  
Ricardo Gonçalves ◽  
Shungu Mogaladi
Keyword(s):  
Tricuspid Valve ◽  
Papillary Muscle ◽  
Surgical Repair ◽  
Motor Vehicle ◽  
Motor Vehicle Accident ◽  
Three Dimensional ◽  
Papillary Muscle Rupture ◽  
Severe Tricuspid Regurgitation ◽  
Vehicle Accident ◽  
Muscle Rupture

A 25-year-old male presented after a motor vehicle accident with tricuspid valve (TV) regurgitation, due to a flail TV secondary to papillary muscle rupture. We highlight the importance of three-dimensional echocardiographic imaging of the tricuspid valve and its utility in aiding a successful surgical repair.

Enhanced Regional Deformation at the Anterior Papillary Muscle Insertion Site After Chordal Transsection

Circulation ◽  
1996 ◽  
Vol 93 (3) ◽  
pp. 585-593 ◽  
Author(s):  
Yasuo Takayama ◽  
Jeffrey W. Holmes ◽  
Ian LeGrice ◽  
James W. Covell
Keyword(s):  
Papillary Muscle ◽  
Insertion Site ◽  
Regional Deformation ◽  
Muscle Insertion ◽  
Anterior Papillary Muscle

scholarly journals A comparative study of the morphology of mammalian true chordae tendineae of the atrioventricular valves

2015 ◽  
Vol 32 (02) ◽  
pp. 071-077 ◽  
Author(s):  
J. Hutchison ◽  
P. Rea
Keyword(s):  
Tricuspid Valve ◽  
Papillary Muscle ◽  
Papillary Muscles ◽  
Atrioventricular Valve ◽  
Chordae Tendineae ◽  
Atrioventricular Valves ◽  
Abrupt Transition ◽  
Significant Difference ◽  
Cardiac Valve Replacement ◽  
Transition Areas

Abstract Introduction: There is little literature on the subvalvular apparatus of the atrioventricular valves' of the heart. This investigation aimed to compare mammalian atrioventricular valve subvalvular apparatus; in particular the number and characteristics of true chordae tendineae (TChT) and their tissue transition areas - proximally with the valve leaflets, and distally with the papillary muscles. Materials and Methods: Sheep, pig and bovine fresh hearts were dissected (n = 9). The subvalvular apparatus of the mitral and tricuspid valves were visualised. Each TChT origin was grouped and counted according to papillary muscle and valve, and compared within and across the species. Appropriate statistical analyses were then applied to identify any correlations. Histological examination of the transition areas was also performed. Results: The tricuspid valve had significantly more TChT than the mitral (p = 0.04). On comparison of the TChT counts in both valves across the species, there were no signiicant differences. An unexpected inding was the abrupt transition from chordae collagen to papillary muscle. Conclusion: The tricuspid valve is under less pressure than the mitral but is connected to significantly more TChT. We have shown no significant difference between the numbers of TChT for each papillary muscle in either mitral or tricupsid valves across the species. Veterinary teaching emphasises that there is no clinically signiicant difference at a gross morphology level between these species. This is the irst study to report that there is also no signiicant difference at the subvalvular level, and this has direct translational relevance for bioprosthetic cardiac valve replacement.

Vasomotor properties of porcine endocardial and epicardial microvessels

1992 ◽  
Vol 262 (4) ◽  
pp. H1143-H1148 ◽  
Author(s):  
J. E. Quillen ◽  
D. G. Harrison
Keyword(s):  
Myocardial Perfusion ◽  
Papillary Muscle ◽  
Vasodilator Agents ◽  
Cyclic Monophosphate ◽  
Ly 83583 ◽  
Anterior Papillary Muscle

We sought to compare the sensitivity of endocardial and epicardial microvessels to several important neurohumoral substances. Porcine endocardial microvessels (86-200 microns diam) from the anterior papillary muscle and epicardial microvessels of similar size from the left anterior descending distribution were studied in a pressurized state using an in vitro microvessel-imaging apparatus. Endothelium-dependent relaxations to bradykinin, ADP, A23187, and to the endothelium-independent vasodilator nitroprusside were identical between endocardial and epicardial microvessels. In contrast, the sensitivity of endocardial microvessels to adenosine was substantially greater than that of epicardial microvessels (ED50s of -6.59 +/- 0.05 vs. -5.66 +/- 0.11, P less than 0.001, endocardial vs. epicardial, respectively), although adenosine caused 100% relaxation of both groups of vessels at the highest concentrations. Adenosine vasorelaxation was not affected by inhibition of cyclooxygenase by indomethacin (1 microM) or depletion of guanosine 3',5'-cyclic monophosphate by LY 83583 (1 microM). Forskolin dilated both endocardial and epicardial vessels completely but was more potent in endocardial vessels. These data show that endocardial and epicardial microvessels exhibit similar sensitivity to most vasodilator agents. Endocardial microvessels, however, are more sensitive to both adenosine and forskolin. The enhanced responsiveness to adenosine may be related to adenosine 3',5'-cyclic monophosphate-mediated mechanisms and may have important implications regarding regulation of myocardial perfusion in deeper subendocardial layers.

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