scholarly journals Malposition of Heart and Cardiac Apex

2020 ◽  
Author(s):  
Keyword(s):  
Cardiac Apex

CT-Guided Pericardiocentesis

1996 ◽  
Vol 37 (3P2) ◽  
pp. 775-778 ◽  
Author(s):  
O. Duvernoy ◽  
A. Magnusson
Keyword(s):  
Cardiac Surgery ◽  
Pericardial Effusion ◽  
Guide Wire ◽  
Pericardial Fluid ◽  
Good Information ◽  
Indwelling Catheter ◽  
Ct Guided ◽  
Cardiac Apex ◽  
The Right ◽  
Stereotactic Device

Purpose: Pericardial effusion in patients who have recently undergone cardiac surgery is often trapped in compartments. CT of the pericardium provides good information about the distribution of pericardial fluid in the postoperative period after cardiac surgery. Contrary to echocardiography, CT imaging is not affected by postoperative mediastinal emphysema and pain from the wound. A method for CT-guided pericardiocentesis was developed. Material and Methods: CT-guided pericardiocentesis was carried out with a stereotactic device in 10 patients. The pericardium was punctured with a 0.9-mm needle and a 0.46-mm guide wire was introduced through the needle. An indwelling catheter was introduced over the guide wire and was left in the pericardium. Both the subxiphoid and parasternal approaches were used. Results: CT guidance facilitated placement of an indwelling catheter into the pericardial space in positions difficult to reach in patients with postoperative pericardial compartments, i.e. near the right atrium and adjacent to the cardiac apex/left ventricle. Conclusion: CT-guided pericardiocentesis offers a new possibility in patients where fluoroscopically or echocardiographically guided pericardiocentesis is difficult.

Postinfarction posterobasal ventricular septal defect closure with a triple-layer patch

2021 ◽  
Keyword(s):  
Ventricular Septal Defect ◽  
Septal Defect ◽  
Great Part ◽  
Cardiac Apex ◽  
Ventricular Septal Defect Closure ◽  
Dacron Patch ◽  
Basal Septum ◽  
The Right ◽  
Infarcted Tissue ◽  
Anterior Septum

We present the case of a 65-year-old patient who developed a large posterobasal ventricular septal defect resulting from an extensive acute myocardial infarction involving the inferior and basal septum and wall. We repaired the interventricular lesion by verticalizing the cardiac apex to perform a left posterobasal ventriculotomy. We removed a great part of the residual infarcted tissue, leaving the residual scar in place. Our technique first involved creating a double-layer patch comprising heterologous pericardium and a non-collagen-impregnated Sauvage Dacron patch, fixed with single pledgeted U-stitches from the right side of the anterior septum; then we applied a third layer of heterologous pericardium on the left side of the septum in order to have only a pericardial surface in contact with blood on both ventricular sides. A running suture was used to complete the procedure from the middle to the posterior rim of the ventricular septal defect.

Isolated left ventricular apical hypoplasia in a young child

2021 ◽  
Vol 14 (1) ◽  
pp. e239297
Author(s):  
H Ravi Ramamurthy ◽  
Onkar Auti ◽  
Vimal Raj ◽  
Kiran Viralam
Keyword(s):  
Left Ventricle ◽  
Left Ventricular ◽  
Long Term Outcomes ◽  
Wave Inversion ◽  
St Segment ◽  
Cardiac Apex ◽  
The Right ◽  
First Time ◽  
Left Lead

A 16-month-old, healthy, asymptomatic male child presented with a diagnosis of dilated cardiomyopathy. Cardiovascular examination and chest radiograph were normal. ECG revealed sinus rhythm, and the augmented vector left lead showed raised ST segment, T wave inversion and q waves. Echocardiography showed a globular left ventricle with notched cardiac apex, abnormal echogenicity in the left ventricular apical myocardium, single papillary muscle and normal biventricular function. Cardiac MRI scan revealed a globular left ventricle with fibrofatty changes and retraction of the apex, the papillary muscles closely approximated, and the right ventricle wrapping around the apex of the left ventricle. This is described as isolated left ventricular apical hypoplasia. Diagnosis of this rare entity can be made by MRI, and it has been diagnosed largely in adults. The pathophysiology and long-term outcomes are unknown. We characterise the echocardiography findings of this rare anomaly in a child for the first time in the literature.

Bifid cardiac apex and right atrioventricular cleft

1993 ◽  
Vol 2 (3) ◽  
pp. 148-149 ◽  
Author(s):  
Solomon Victor ◽  
Vijaya M. Nayak
Keyword(s):  
Cardiac Apex

scholarly journals An Implantable Sensorized Lead for Continuous Monitoring of Cardiac Apex Rotation

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4195
Author(s):  
Emanuela Marcelli ◽  
Laura Cercenelli
Keyword(s):  
Continuous Monitoring ◽  
Dimensional Space ◽  
Animal Experiments ◽  
Three Dimensional ◽  
Pressure Sensors ◽  
Cardiac Monitoring ◽  
Cardiac Apex ◽  
Angular Velocities

Changes in the pattern or amplitude of cardiac rotation have been associated with important cardiovascular diseases, including Heart Failure (HF) which is one of the major health problems worldwide. Recent advances in echocardiographic techniques have allowed for non-invasive quantification of cardiac rotation; however, these examinations do not address the continuous monitoring of patient status. We have presented a newly developed implantable, transvenous lead with a tri-axis (3D) MEMS gyroscope incorporated near its tip to measure cardiac apex rotation in the three-dimensional space. We have named it CardioMon for its intended use for cardiac monitoring. If compared with currently proposed implantable systems for HF monitoring based on the use of pressure sensors that can have reliability issues, an implantable motion sensor like a gyroscope holds the premise for more reliable long term monitoring. The first prototypal assembly of the CardioMon lead has been tested to assess the reliability of the 3D gyroscope readings. In vitro results showed that the novel sensorized CardioMon lead was accurate and reliable in detecting angular velocities within the range of cardiac twisting velocities. Animal experiments will be planned to further evaluate the CardioMon lead in in vivo environments and to investigate possible endocardial implantation sites.

First Experimental Evaluation of Cardiac Apex Rotation with an Epicardial Coriolis Force Sensor

ASAIO Journal ◽  
2005 ◽  
Vol 51 (6) ◽  
pp. 696-701 ◽  
Author(s):  
Emanuela Marcelli ◽  
Gianni Plicchi ◽  
Laura Cercenelli ◽  
Filippo Bortolami
Keyword(s):  
Coriolis Force ◽  
Experimental Evaluation ◽  
Force Sensor ◽  
Cardiac Apex

meta-Iodobenzylguanidine uptake in the hypertensive–diabetic rat heart: a marker for myocardial dysfunction?

1994 ◽  
Vol 72 (10) ◽  
pp. 1162-1167 ◽  
Author(s):  
Lynda M. Herman ◽  
Soter Dai ◽  
Neil G. Hartman ◽  
John H. McNeill
Keyword(s):  
Papillary Muscle ◽  
Tissue Concentration ◽  
Myocardial Dysfunction ◽  
Diabetic Rat ◽  
Control Group ◽  
Mibg Uptake ◽  
Sprague Dawley ◽  
Deoxycorticosterone Acetate ◽  
Accurate Indication ◽  
Cardiac Apex

The purpose of this study was to investigate the cardiac adrenergic neuronal changes induced by diabetes and hypertension by using an analogue of norepinephrine, meta-iodobenzylguanidine (MIBG), and to compare these changes with the contractile state of ventricular papillary muscle. The tissue concentration of norepinephrine in the cardiac apex was also measured for direct comparison with [123I]MIBG uptake. One week following the induction of diabetes by streptozotocin injection (55 mg/kg, i.v.), male Sprague – Dawley rats were given subcutaneous injections of a hypertension-inducing agent, deoxycorticosterone acetate (DOC A, 25 mg/kg), or DOCA vehicle twice weekly for 3, 6, 9, or 12 weeks. At the end of each time point, the animals were injected intravenously (15 mCi/mg; 1 Ci = 37 GBq) with [123I]MIBG. The results showed a progressive decrease in MIBG uptake into the hearts of diabetic, hypertensive, and diabetic–hypertensive rats during the 12-week observation period, compared with the control group. However, length–tension papillary muscle studies at 12 weeks indicated that only the diabetic group had a diminished performance compared with control. Furthermore, an inverse relationship was observed between MIBG uptake and norepinephrine levels in the cardiac apex of the diabetic and diabetic–hypertensive groups. Therefore, we concluded that either MIBG does not provide an accurate indication of adrenergic integrity or that there is no relationship between sympathetic activity and myocardial function at the time points measured. MIBG did not prove to be a useful marker for myocardial dysfunction in diabetic rats.Key words: diabetes, deoxycorticosterone acetate hypertension, meta-iodobenzylguanidine, adrenergic function, heart.

Computed tomography guided percutaneous transapical closure of cardiac apex after prosthetic mitral paravalvular leak closure

2015 ◽  
Vol 198 ◽  
pp. 37-39 ◽  
Author(s):  
Cengiz Ozturk ◽  
Atila Iyisoy ◽  
Turgay Celik ◽  
Sevket Balta ◽  
Ugur Bozlar ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Paravalvular Leak ◽  
Cardiac Apex

Minimally Invasive Transxiphoid Approach to the Cardiac Apex and Caudoventral Intrathoracic Space

2012 ◽  
Vol 41 (8) ◽  
pp. 915-917 ◽  
Author(s):  
David A. Nelson ◽  
Matthew W. Miller ◽  
Sonya G. Gordon ◽  
Ashley Saunders ◽  
Theresa W. Fossum
Keyword(s):  
Minimally Invasive ◽  
Cardiac Apex
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