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Increased myocardial contractility in short-term Type 1 diabetic patients: an echocardiographic study (1985)

Thuesen, L. ; Sandahl Christiansen, J. ; Falstie-Jensen, N. ; [et al.]

Springer

Diabetologia 28 (1985), S. 822-826

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ISSN: 1432-0428

Keywords: Echocardiography ; left ventricular function ; Type 1 diabetes ; metabolic control ; diabetic cardiopathy

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Summary Cardiac function was investigated by echocardiography in 24 short-term Type 1 diabetic patients with a mean diabetes duration of 7 years (range 4–14 years) during conditions of ordinary metabolic control. Compared to 24 age and sex matched normal control subjects, measurements of myocardial contractility as left ventricular fractional shortening and mean circumferential shortening velocity were increased by 12% and 20% respectively. Another 8 Type 1 diabetic patients were examined during conditions of poor (hyperglycaemia and ketosis) and good metabolic control. Following improved glycaemic control, left ventricular fractional shortening and mean circumferential shortening velocity decreased by 16% and 24% respectively. Our findings show that short-term Type 1 diabetes is associated with increased myocardial contractility. Furthermore, this condition is related to the state of metabolic control.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00291071

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Interaction analysis in multivariable control systems (1986)

Jensen, N. ; Fisher, D. G. ; Shah, S. L.

Hoboken, NJ : Wiley-Blackwell

AIChE Journal 32 (1986), S. 959-970

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ISSN: 0001-1541

Keywords: Chemistry ; Chemical Engineering

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Notes: Most published “interaction measures” can produce misleading results and often do not measure the true closed-loop interaction. Therefore, closed-loop transmittances are defined mathematically as direct, parallel, disturbance, and interaction transfer functions and it is shown that the direct Nyquist array design method includes an excellent basis for interaction analysis.

Additional Material: 11 Ill.