1.Papillary Muscle Ventricular Tachycardia: Another Zigsaw Puzzle to Be Solved.
Korean Circulation Journal 2013;43(12):793-795
No abstract available.
Papillary Muscles*
;
Tachycardia, Ventricular*
2.The effects of adriamycin on twitch force and membrane potential in an isolated Guinea-pig papillary muscle.
Chan Uhng JOO ; Pyung Han HWANG ; Jung Soo KIM ; Hee Cheol YU ; Soo Wan CHAE
Journal of the Korean Pediatric Society 1991;34(5):677-681
No abstract available.
Doxorubicin*
;
Membrane Potentials*
;
Membranes*
;
Papillary Muscles*
3.A Blood-Filled Cystic Mass Attached to the Anterolateral Papillary Muscle.
Jong Pil PARK ; Jong Min SONG ; Jeong Woo LEE ; Gyung Jung KIM ; Jae Won LEE ; Kyung Eun KIM ; Joon Won KANG ; Duk Hyun KANG ; Jae Kwan SONG
Journal of Cardiovascular Ultrasound 2009;17(1):16-18
A 22 year-old male had a cystic mass attached to the anterolateral papillary muscle which was diagnosed using transthoracic and transesophageal echocardiography. Cardiac MRI was done to prove the nature of cystic mass. This cystic mass was successfully resected by da Vinci system without damage to the valve. Histologically this cystic mass proved to be a blood-filled cystic mass.
Echocardiography
;
Echocardiography, Transesophageal
;
Humans
;
Male
;
Papillary Muscles
4.The Morphologic Study of the Tricuspid Valve Complex in Korean Adult Hearts.
Kyu Seok LEE ; Hyoung Woo PARK ; Joong Hwan OH
Korean Journal of Physical Anthropology 1990;3(2):105-113
The tricuspid valve is not a simple but a complex structure, tricuspid valve complex. This complex is composed of tricuspid orifice, annulus, valve leaflet, chordae tendineae and papillary muscles. There are flew articles about these structures. The authors studied tricuspid valve complex in 53 cases of normal korean adults, such as circumference of tricuspid annulus, the maximum diameter of the tricuspid orifice, height and breadth of the cusps, including commissures, the ratio of rough to clear zone, the number of scallops of posterior cusp, the number, length and pattern of arrangement of the several types of chordae, the number and morphological characteristics of papillary muscles.
Adult*
;
Chordae Tendineae
;
Heart*
;
Humans
;
Papillary Muscles
;
Pectinidae
;
Tricuspid Valve*
7.Influence of Hypertonic Solution on Myocardial Contractility .
Korean Journal of Anesthesiology 1978;11(4):294-300
The influences of osmolarity on the cardiac muscle contraction were investigated in cat papillary muscles. The muscle was immersed in the modified Krebs-Ringer-bicarbonate solutions containing various Ca ion concentrations and osmolarities and the resultant changes in maximum developed tension, rate of development of tension and time to maximum tension were analyzed. Following are the results. 1) Mean length of papillary muscle used was 9.3+/-0.60mm, end mean cross-sectional area was l. 73+/-0.07 mm2. Normal contraction amplitude at 5 mM Ca ion-K-R-B solution was 2. 46+/-0. 1 gram/mm. 2) Within the range of 2.5-10.0 mM Ca ion concentration, the contraction amplitude increased along with the increment of Ca concentration. 3) Osmolarity exerted dual effects on contraction; within the range of 300-400 mosm/I solution, the hypertonic solution exported a positive inotropic effect while 500 mOsm/1 solution exerted a negative inotropic effect upon papillary muscle. 4) Maximum rate of tension development increased in 350 mOsm/1 solution, but decreased in 400 mOsm/1 or more hypertonic solution. The time to maximum tension did not change within the range of 300 400 mOsm/1 osmolarity and in 500 mOsm/1 solution. 5) The difference in maxium developed tension between single and paired stimulation was 1. 99 gram/mm' at 300 mOsm/1 solution and was negligible in 450 mOsm/1 or more hypertonic solutions.
Animals
;
Cats
;
Hypertonic Solutions
;
Myocardium
;
Osmolar Concentration
;
Papillary Muscles
8.Extended Septal Myectomy for Hypertrophic Obstructive Cardiomyopathy : Report of a case.
Jae Hang LEE ; Jae Gun KWAK ; Eui Suk JUNG ; Se Jin OH ; Hyoung Woo CHANG ; Woong Han KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2006;39(10):775-778
Hypertrophic cardiomyopathy is characterized by inappropriate hypertrophy of the myocardium and is associated with various clinical presentations ranging from complete absence of symptoms to sudden, unexpected death. These are caused by dynamic obstruction of the left ventricular outflow tract and surgical approaches were initiated. But, the complete resection of hypertrophied midventricular septum is impossible by standard, transaortic approach, because of narrow vision and limited approach. And it leads to inadequate excision, will leave residual left vetnricular outflow tract obstruction or systolic anterior motion of mitral leaflet, and limit symptomatic improvement and patient's survival. We report a case of extended septal myectomy for hypertrophic cardiomyopathy of mid-septum in a child. The extended septal myectomy was performed by aortotomy and left ventricular apical incision, and made possible the complete resection of mid-ventricular septum, abnormal papillary muscles and chordae. The patient's symptom was improved and the postoperative course was uneventful.
Cardiomyopathy, Hypertrophic*
;
Child
;
Heart Septum
;
Humans
;
Hypertrophy
;
Myocardium
;
Papillary Muscles
9.Tricuspid Insufficiency Detected 8 Years Later Following a Blunt Chest Trauma.
Yeoun Jung KIM ; Keon Sik MOON ; Jae Sung KIM ; Hweung Kon HWANG
Korean Circulation Journal 1999;29(10):1133-1137
Post-traumatic tricuspid insufficiency is a rare condition and may be clinically silent and imprecise. The diagnosis may be difficult when it progreses slowly and other acute lesions exist concomittantly. Two-dimenstional Doppler echocardiography appears to be an essential procedure in diagnosting the rupture of chordae tendineae or papillary muscle following traumatic injury. We report a case of tricuspid insufficiency of which symptom developed 8 years later following a blunt chest trauma. The patient was operated by tricuspid vlave repair with chordal replacement and ring annuloplasty successfully. We would like to emphasize that patients sustaining major thoracic trauma should be carefully examine for possible blunt chest trauma including cardiac valve rupture or tear.
Chordae Tendineae
;
Diagnosis
;
Echocardiography, Doppler
;
Heart Valves
;
Humans
;
Papillary Muscles
;
Rupture
;
Thorax*
10.A Clinical Study of Mitral Valve Repair for the Treatment of Mitral Valve Insufficiency.
Sang Ik KIM ; Sang Joon OH ; Kook Yang PARK
Korean Circulation Journal 2001;31(12):1240-1247
BACKGROUND AND OBJECTIVES: Mitral valve repair is the main procedure for the treatment of mitral valve insufficiency. The aims of this study were to review the applied techniques. and to evaluate postoperative residual mitral valve insufficiency, to compare preoperative and postoperative cardiac functions and dimensions, to compare the effects of rigid and flexible ring annuloplasty, and to assess overall freedom from valve failure-related reoperation. SUBJECTS AND METHODS: From March 1996 to September 1999, 34 patients underwent mitral valve repair for the treatment of mitral valve insufficiency at our department. This group comprised ten males and twenty four females, aged 8 to 65 years. The causes of mitral valve insufficiency were of degenerative origin in 12 patients, rheumatic in 10, congenital in 9, cardiomyopathic in 2, and ischemic in 1. The applied valve repair techniques included annuloplasty, quadrangular resection, leaflet slicing, cleft repair, chordae shortening, chordae transfer, secondary chordae resection, new chordae formation, papillary muscle splitting, commissuroplasty, and commissurotomy. RESULTS: There was no early or late mortality. We encountered 8 residual mitral valve insufficiencies (more than grade II), 2 of which worsened and eventually required correction by valve replacement. There were no statistical differences seen between the effects of rigid and flexible ring annuloplasty on left ventricular function either before or 1 year following annuloplasty. The cardiac dimensions decreased significantly. The actuarial freedom from valve failure-related reoperation was 93.01% at 43 months. CONCLUSION: Mitral valve repair with preserved valvular apparatus showed that the repaired valves functioned well and cardiac dimensions recovered satisfactorily. There were no statistical differences between the effects of rigid and flexible ring annuloplasty on cardiac functions and dimensions either before or 1 year following annuloplasty.
Female
;
Freedom
;
Humans
;
Male
;
Mitral Valve Insufficiency*
;
Mitral Valve*
;
Mortality
;
Papillary Muscles
;
Reoperation
;
Ventricular Function, Left