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Biomedical subjects

E Kassis

Publications and source records attributed to E Kassis.

46 records · Page 3Linked to original sources

Myocardial infarction and cerebral infarction in a Danish suburban community.

A comparison was made of 485 cases of cerebral infarction (CI), registered prospectively in Frederiksberg, Copenhagen, with 495 cases of myocardial infarction (AMI), recorded retrospectively in the same population. The overall annual incidence of AMI was 6.5 per 1,000 population for males, 3.8 for females; the rates for CI were 2.4 and 2.5, respectively. The age-incidence curves, particularly those for AMI, were significantly steeper in the females than in the males. Correspondingly, the male predominance in the AMI-group subsided with age. Age-specific incidence-rates rose exponentially with advancing age; for each sex and diagnosis the relationship can thus be expressed as a simple mathematical formula, which may facilitate comparisons of incidence patterns in different communities. Theories explaining the similarities and differences of the age-incidence curves for AMI and CI are discussed.

Adult↗

Unilateral pulmonary edema following spontaneous pneumothorax.

Two patients who developed the rare phenomenon of unilateral pulmonary edema after expansion of their spontaneous pneumothoraces are described. The edema occurs mostly in patients who have had symptoms of pneumothorax for at least 3 days and its pathophysiology may be due to decrease in surfactant activity and changes in the alveolar-capillary basement membrane. Precautions to minimize the severity of this potentially lethal complication are stressed.

Aged↗

[Cor pulmonale].

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Humans↗

Systemic hypertension, left ventricular hypertrophy and myocardial infarction in patients with chronic obstructive lung disease.

Left ventricular function was evaluated prospectively during 1 year in a controlled clinical study of 73 patients with chronic obstructive lung disease. The control group comprised 68 patients matched for age and sex and with no evidence of airways obstruction. Left ventricular hypertrophy was found in 52% and systemic hypertension in 58% of patients in the study group compared with 6% and 15% respectively in the controls. Left ventricular hypertrophy was diagnosed in 70% of patients with chronic bronchitis and in 19% of those with chronic emphysema. Systemic hypertension was observed in 45% of the bronchitic type patients and in 81% of those with emphysema. The incidence of myocardial infarction in the study group was not lower than in the controls. The high frequency of left ventricular hypertrophy in patients with chronic obstructive lung disease can probably be related to a similar high frequency of systemic hypertension. Hypertension per se does not explain left ventricular hypertrophy in all patients with chronic bronchitis, but hypoxemia and acidosis seem to be of pathogenetic importance in these cases.

Acute Disease↗

Pharmacokinetic analysis of gentamicin thrice and single daily dosage in pediatric cancer patients.

Fifty-two children suffering from different types of malignancies were included and evaluated for the pharmacokinetics of gentamicin thrice or single daily dosage protocols. All the study population received a total dose of 5 mg/kg daily. Thirty children received gentamicin thrice daily, and 22 were treated using the single daily protocol; all had fever and neutropenia when included. The individual pharmacokinetic parameters were calculated using a one-compartment model for two blood gentamicin samples. The mean (SD) t 1/2 (h), clearance (mL/min/BSA), Vss (L/kg), Cmax (micrograms/mL), and Cmin (micrograms/mL) were 3.05 (1.0) and 3.9 (0.6) h, 136 (61.3) and 99.9 (65.3) mL/min/BSA, 0.4035 (0.167) and 0.457 (0.17) L/kg, 5.2 (2.0) and 11.5 (4.2) micrograms/mL, 0.8 (0.6) and 0.18 (0.1) microgram/mL for thrice and single daily dosage schedules, respectively. The single gentamicin daily dose protocol had a significantly longer t 1/2, shorter clearance normalized to BSA, higher Cmax, and lower Cmin in comparison with the thrice daily schedule. We recommend the use of gentamicin at 5 mg/kg daily delivered as a single daily dose for pediatric cancer patients with fever and neutropenia, in spite of the measured pharmacokinetic differences, which in our opinion have no clinical significance.

Adolescent↗