PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “ENDOMYOCARDIAL FIBROSIS”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,297 records · Page 72Linked to original sources
PubMed1989

[Subaortic fibromuscular tunnel following resection of accessory mitral tissue. Surgical treatment].

When accessory mitral valve tissue obstructs the left ventricular outflow tract resection is considered a sufficient and definitive procedure. We report the unusual case of a child who had undergone such resection at the age of 4 years and who developed, over a few years, a recurrent subvalvular aortic obstacle consisting, this time, in a fibromuscular tunnel. In a second operation performed at the age of 12, a septal patch was inserted to widen the subaortic channel which was approached through a trans-septal infundibular route. Control examination showed a satisfactory pressure gradient and a sinus rhythm.

Child, Preschool↗
PubMedDate not supplied

Myocytolysis as a result of vascular rejection: biopsy and autopsy findings--a case report.

Vascular pathologic lesions are a severe and irreversible complication of allogeneic heart transplantation despite immunoprophylactic treatment. These vascular alterations may be characterized by a lymphocytic vasculitis or lumen occlusion by proliferative vasculopathy (or both). They are not readily detected by endomyocardial biopsy. We describe a patient who expired 21 weeks after orthotopic heart transplantation. Graft failure was caused by extensive vascular changes of both an infiltrative and a proliferative nature with subsequent ischemic damage to the myocardium. Vacuolated myocytes observed in the last biopsy specimen obtained before death appeared at postmortem investigation to represent a subendocardial strip of sublethally injured myocytes. Because ischemic damage as a result of vascular rejection may involve a much larger area of the myocardium than the diseased vessel itself, subendocardial myocytic vacuolation in the biopsy specimen may be a valuable diagnostic sign indicating vasculopathy in the graft.

Adult↗
PubMed1989

[Organic changes in rabbits and rats in phosphorothioaliphatic compound poisoning. III. The histomorphologic picture of selected internal organs, especially the myocardium, in rats and rabbits in phosphorothioaliphatic pound poisoning treated with oximes].

Pathomorphological changes of the cardiac muscle of experimental rabbits and rats intoxicated with Intration were traced. Diffuse ischaemic lesions such as the presence of large quantities of mitochondria, contraction nodes and droplet necrosis were observed. These lesions result: from the toxic effect of pesticides on myocytes and inhibition of cholinesterases as well as from nonphysiologically great activity of lysosome enzymex which are also responsible for necrotic lesions in the cardiac muscle. Excessively high PAM doses administered to animals intoxicated with pesticide result in lesions in the cardiac muscle of rabbits and rats which are greater than after administering an insectide alone. Toxobidin, a multi-function compound, doses not possess such negative properties as PAM.

Animals↗
PubMed1989

[The significance of heart rate for stress hemodynamics following heart transplantation].

Since 1985, orthotopic heart transplantation had been carried out in 20 patients. Seventeen patients are still alive. 341 +/- 156 days after cardiac transplantation hemodynamics at rest were normalized. Left ventricular ejection fraction at rest and during exercise was within normal ranges for all patients except one. During symptom-limited bicycle exercise (121 +/- 35 Watt), pulmonary capillary wedge pressure (PCP) and right atrial pressure (RAP) increased to unphysiological high levels (PCP: 8.2 +/- 2.7 mmHg at rest, 19.1 +/- 4.9 mmHg at exercise; RAP: 4.1 +/- 2.3 mmHg at rest, 12.1 +/- 3.9 mmHg at exercise), whereas cardiac index was elevated to a normal level (3.6 l/min.m2 at rest; 6.9 l/min.m2 at exercise). Increase in heart rate, however, was subnormal (from 90 +/- 13/min at rest to 122 +/- 15/min at exercise). To examine the influence of heart rate on hemodynamics, in 8 patients with normal tricuspid valve function, heart rate was gradually increased by atrial stimulation during continuous exercise; PCP maximally could be reduced from 19.1 +/- 4 mmHg to 10.8 +/- 2.7 mmHg (p less than 0.01) at an optimum heart rate of 139 +/- 9/min. Reduction of RAP was by far less pronounced and normalization could not be achieved (from 12.2 +/- 3.7 mmHg to 9.5 +/- 3.4 mmHg, p less than 0.01), suggesting an impaired right ventricular function. By atrial stimulation stroke volume was reduced from 109.8 +/- 17.7 ml to 91.8 +/- 14.2 ml (p less than 0.01). These results indicate that, at exercise, the denervated transplanted heart, to a large extent, increases cardiac output by means of the Frank-Starling mechanism.(ABSTRACT TRUNCATED AT 250 WORDS)

Cardiac Output↗
PubMed1989

[Diagnostic usefulness of 2-dimensional echocardiography in eosinophilic endomyocardial disease (Loeffler disease)].

We present an uncommon case of idiopathic hypereosinophilic syndrome with cardiac involvement (fibroplastic parietal endocarditis --Löffler's disease--) in a 48-year-old female with congestive heart failure and hypereosinophilia. The 2-D echo findings (biventricular apical obliteration by echogenic endomyocardial proliferations with normal systolic inward motion) were the clue for the diagnosis that was hemodynamically and pathologically confirmed subsequently. We emphasize the diagnostic value of two-dimensional echocardiography in this condition and review the literature on it.

Cardiomyopathies↗
PubMed1985

[Accumulation of pyrophosphate in the myocardium in post-infarction cardiosclerosis].

A study of the relationship between the frequency of labelled pyrophosphate detection in the heart muscle and the incidence of clinical signs of heart failure or angina in 185 postmyocardial-infarction patients demonstrated that the distribution of patients with postinfarction cardiosclerosis among the positive and negative 99mTc-pyrophosphate scintigraphy groups was governed by the presence of heart failure in these patients, a finding suggestive of the scarry fields within the myocardium as the principal cause of myocardial accumulation of labelled pyrophosphate in postinfarction cardiosclerosis. Pyrophosphate accumulation in patients with postinfarction cardiosclerosis can be regarded as an indicator of unfavorable developments, as confirmed by one-year follow-up results in 114 patients.

Adult↗
PubMed1988

[Effect of peripheral vasodilators on the local contractile function of the myocardium in patients with post-infarction cardiosclerosis].

Echocardiography was used to explore regional myocardial contractility in 92 patients with postinfarction cardiosclerosis complicated by heart failure developed in the late postinfarction period. All the patients were shown to display regional myocardial contractile dysfunctions as hypo-, a-, and dyskinesia accompanied with hyperfunction of intact myocardial segments. The most severe asynergy was present in anterior postinfarction scars. Peripheral vasodilators were found to improve contractility in the hypokinetic and intact areas of the myocardium.

Aged↗
PubMed1988

[18 and one-half years' survival after cardiac graft. Clinical course and anatomical findings].

Operated upon in November, 1968, the last survivor of heart transplant recipients in those times has died on May 11, 1987, having survived 18 years and 6 months. The active life of this patient, however, was marred by episodes of graft rejection during the first post-operative years and by various incidents. It was mainly the complications of the immunosuppressive treatment that hampered his activities (osteoporosis) and provoked his death. Post-mortem examination confirmed that the heart was in good condition, found an active bronchial epithelioma and revealed iatrogenic lesions, namely adenomas, adenocarcinoma of the kidney and "regenerative" nodular hyperplasia of the liver with portal hypertension. Such lesions are observed in patients under long-term treatment with immunosuppressants. A "sleep apnoea" syndrome might have accounted for the formation of pulmonary hypertension lesions. The authors wish to pay their respects to this man who devoted himself to the service of other men.

Endomyocardial Fibrosis↗