Clinical Application and Results of the Assessment of Coronary Blood Flow by the Regional Precordial Xenon Residue Detection Technique

1978 ◽  
Vol 17 (04) ◽  
pp. 161-171
Author(s):  
H.-J. Engel ◽  
H. Hundeshagen ◽  
P. R. Lichtlen
Keyword(s):  
Wall Motion ◽  
High Flow ◽  
Detection Technique ◽  
Fatty Tissue ◽  
Technical Aspects ◽  
Residue Detection ◽  
High Affinity ◽  
Artery Disease ◽  
The Right ◽  
Drug Interventions

Methodological and technical aspects as well as application and results of the precordial Xenon-residue-detection technique are critically reviewed. The results concern mainly normal flow in various regions of the heart esp. in the free wall of the right and left ventricle, poststenotic flow in patients with coronary artery disease in relation to the degree of proximal nar-rowings as well as wall motion of the corresponding LV segment, bypassgraft flow and flow after drug interventions esp. nitrates, betablockers, the calcium-antagonist Nifedipine and the coronary dilator Dipyridamole. In spite of its serious limitations (high affinity of Xenon for fatty tissue, geometrical problems in the assessment of flow and its relation to anatomy, gas exchange in situations of high flow etc.), the technique is found to be a usefull investigatory tool. Due to its technical display and the related high costs routine application is, however, prohibitive.

Assessment of Regional Wall Motion in Coronary Artery Disease Using Radionuclide Methods

1978 ◽  
Vol 17 (05) ◽  
pp. 221-224 ◽  
Author(s):  
O. Pachinger ◽  
H. Sochor ◽  
P. Probst ◽  
G. Joskowicz ◽  
F. Kaindl ◽  
...  
Keyword(s):  
Wall Motion ◽  
Radionuclide Angiography ◽  
Radionuclide Ventriculography ◽  
Regional Wall Motion ◽  
Normal Subjects ◽  
Regional Wall ◽  
Normal Mean ◽  
Contrast Angiography ◽  
Artery Disease ◽  
The Right

72 patients with CAD, 10 patients with congestive cardiomyopathies and 10 normal subjects were evaluated by radionuclide angiography. Comparison with contrast angiography showed good results for LVEF (r = 0.83). Regional asynergies observed in the radionuclide angiography correlated well with defects in thallium scintigrams. Extent of abnormal wall motion was measured and compared with normals, appreciating the deviation from the normal mean radial shortening. Good correlation could be demonstrated with radionuclide ventriculography. In 80% of congestive cardiomyopathies the right ventricle wall became visible in the thallium scintigram.

Off-Pump Supraarterial Decompression Myotomy for Myocardial Bridging

2005 ◽  
Vol 8 (1) ◽  
pp. 49 ◽  
Author(s):  
Mersa M. Baryalei ◽  
Theodorus Tirilomis ◽  
Wolfgang Buhre ◽  
Stephan Kazmaier ◽  
Friedrich A. Schoendube ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Exercise Testing ◽  
Clinical Symptoms ◽  
Therapeutic Option ◽  
Median Sternotomy ◽  
Myocardial Bridging ◽  
Off Pump ◽  
Hemodynamic Compromise ◽  
Artery Disease ◽  
The Right

Background: Myocardial bridging of the left anterior descending (LAD) artery may result in clinical symptoms. Surgery with cardiopulmonary bypass (CPB) is a therapeutic option with considerable risk. We hypothesized that off-pump supraarterial myotomy could be an effective treatment modality. Methods: Between October 1998 and May 2000, 13 patients were referred for surgery. All were symptomatic despite medical therapy. Anteroseptal ischemia had been proven by thallium scintigraphy in all 13 patients, exercise testing was positive in 11. All patients were operated on with an off-pump approach after median sternotomy. Results: Mean patient age was 61 8 years (range, 43-71 years). Coronary artery disease mandating additional bypasses was present in 3 patients. The bypasses were done off pump in 2 patients. Conversion to on-pump surgery was necessary in 3 of 13 patients (23%) because of hemodynamic compromise (1 patient), opening of the right ventricle (1 patient), and injury to the LAD (1 patient). Supraarterial myotomy was performed in all patients. One patient who underwent surgery with CPB developed postoperative anteroseptal myocardial infarction. Postoperative exercise testing was performed in all patients and did not reveal any persistent ischemia. Mortality was 0%. All patients were free from symptoms and had not undergone repeat interventions after an average of 51 7 months of follow-up. Conclusions: Off-pump supraarterial myotomy effectively relieves coronary obstruction but has a certain periprocedural risk as evidenced by 1 myocardial infarction, 1 right ventricular injury, and 1 LAD injury. Long-term freedom from symptoms and from reintervention favor further investigation of this surgical therapy.

Giant right coronary artery aneurysm

2020 ◽  
Vol 28 ◽  
pp. 1-3
Author(s):  
Alexandre Bonfim ◽  
Ronald Souza ◽  
Sérgio Beraldo ◽  
Frederico Nunes ◽  
Daniel Beraldo
Keyword(s):  
Coronary Artery ◽  
Right Coronary Artery ◽  
Coronary Artery Aneurysm ◽  
Clinical Course ◽  
Artery Aneurysm ◽  
Giant Aneurysm ◽  
Coronary Artery Aneurysms ◽  
History Of ◽  
Artery Disease ◽  
The Right

Right coronary artery aneurysms are rare and may result from severe coronary disease, with few cases described in the literature. Mortality is high, and therapy is still controversial. We report the case of a 72-year-old woman with arterial hypertension, and a family history of coronary artery disease, who evolved for 2 months with episodes of palpitations and dyspnea on moderate exertion. During the evaluation, a giant aneurysm was found in the proximal third of the right coronary artery. The patient underwent surgical treatment with grafting of the radial artery to the right coronary artery and ligation of the aneurysmal sac, with good clinical course.

scholarly journals Debate of Percutaneous Coronary Intervention versus Coronary Artery Bypass Grafting in a Multimorbidity Patient with Complex Coronary Lesions

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Sotirios Mitsiadis ◽  
Nikolaos Miaris ◽  
Antonios Dimopoulos ◽  
Anastasios Theodosis-Georgilas ◽  
Spyridon Tsiamis ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Artery Bypass ◽  
Coronary Intervention ◽  
Syntax Score ◽  
Complete Revascularization ◽  
Total Occlusion ◽  
Diagonal Branch ◽  
Coronary Lesions ◽  
Artery Disease ◽  
The Right

Background. While complete revascularization in coronary artery disease is of high priority, the method of implementation in patients with complex coronary lesions and multiple comorbidities is not directed by published guidelines. Case Presentation. A 53-year-old female with a chronic total occlusion of the right coronary artery and a bifurcation lesion of the left anterior descending artery and the first diagonal branch, presented with non-ST elevation myocardial infarction. Her past medical history concerned thymectomy and prior chest radiation for thymoma, myasthenia gravis, peripheral artery disease, and cervical cancer treated with surgery and radiation. Although SYNTAX score II favored surgical revascularization, the interventional pathway was finally successfully followed. However, it was complicated with vessel perforation and tamponade managed with pericardiocentesis. Conclusion. Comorbidities are not all involved in common risk models and require individualization until more evidence comes to light.

scholarly journals The right ventricle shows distinct wall motion characteristics in L-TGA vs. D-TGA/atrial switch

2009 ◽  
Vol 11 (S1) ◽  
Author(s):  
Michelle Savacool ◽  
Philip Kilner ◽  
David Sahn ◽  
Willem Helbing ◽  
Harold Litt ◽  
...  
Keyword(s):  
Right Ventricle ◽  
Wall Motion ◽  
Atrial Switch ◽  
Motion Characteristics ◽  
The Right

Meetings of the Scientific Society of the Rybinsk Doctor's Section

1926 ◽  
Vol 22 (12) ◽  
pp. 1405-1405
Keyword(s):  
Dura Mater ◽  
Hand Function ◽  
Parietal Bone ◽  
Fascia Lata ◽  
Fatty Tissue ◽  
Scientific Society ◽  
The Right ◽  
Epileptiform Seizures

Dr. Bronnikov reported a case of Jackson's epilepsy treated operatively. A patient after being wounded with a hammer of the parietal bone first suffered paralysis of the right arm and difficulty in speaking, and after 2 months he had epileptiform seizures every 6 days. In the 4th month, he underwent surgery to remove fragments of the internal lamina pressing on the dura mater, and the defect was closed with a piece of fascia lata with fatty tissue. The patient was demonstrated 3 months after the operation; he had no seizures, his speech was normal, and his hand function had been restored.

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