The phrase "a decrease in myocardial" is correct and usable in written English.
It can be used in medical or scientific contexts when discussing changes in the heart muscle or related conditions.
Example: "The study found a significant decrease in myocardial perfusion among patients with coronary artery disease."
Alternatives: "a reduction in myocardial" or "a decline in myocardial".
The heart rate also decreased significantly during exercise testing thus implying a decrease in myocardial oxygen consumption.
Thus, the initial decline in high-energy phosphates following hypoxia is accompanied by a decrease in myocardial contractility and myocardial energy requirements are subsequently met by ATP supplied from anaerobic glycolysis.
Preliminary clinical studies [ 7] and a recent meta-analysis [ 8] have shown a decrease in myocardial ischemic injury.
We propose that this contributes to a decrease in myocardial insulin action and the development of diabetes-related heart disease.
They reported a decrease in myocardial function in hearts exposed to hypoxia and reoxygenation with no significant decrease in myocardial function in the control group.
In reducing heart rate, ivabradine leads to a decrease in myocardial oxygen consumption and an increase in myocardial perfusion, thereby improving cardiac efficiency [ 36].
Additionally, some 'clustering' of good lifestyle behaviours (diet, exercise, smoking cessation) was observed in survivors of MI, where increased adherence led to a decrease in mortality, myocardial infarction and stroke [130].
Global left ventricular function also improved, as indicated by a decrease in the myocardial performance index.
Furthermore, we conclude that exercise induced reduction in ventricular function assessed by quantitative and Doppler measurements although comparable in both sexes may not indicate a decrease in intrinsic myocardial contractility.
Bivalirudin use was associated with a decrease in Thrombolysis In Myocardial Infarction (TIMI) major (RR 0.58, 95% CI 0.46 to 0.74, p <0.0001) and TIMI minor (RR 0.55, 95% CI 0.48 to 0.63, p <0.0001) bleeding rates in PCI patients as well as in a subgroup of patients with STEMI.
While studies using cardiomyocyte/leukocyte co-culturing methods demonstrate that activated leukocytes can bind to ICAM-1 with a resultant decrease in myocardial contractility [ 9- 11], we and others have noted a paucity of intramyocardial leukocytes in whole animal models of inflammation [ 12, 13].
