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Increased intracranial arterial resistance in patients with type 2 diabetes mellitus

I Tkác1, M Troscák, M Javorský

  • 1Department of Internal Medicine IV, Medical Faculty of P.J. Safárik University, Kosice, Slovakia. ivantkac@central.medic.upjs.sk

Wiener Klinische Wochenschrift
|January 5, 2002
PubMed

Insights

Type 2 diabetes significantly increases intracranial arterial resistance in stroke patients, indicating more severe cerebrovascular damage. This finding highlights the critical role of diabetes in stroke severity and progression.

Area of Science:

  • Neurology
  • Vascular Medicine
  • Diabetology

Background:

  • Stroke risk factor research often overlooks intracranial arteries.
  • Intracranial vascular resistance, estimated by pulsatility index, may indicate stroke severity.
  • Limited data exists on intracranial atherosclerosis risk factors in stroke patients.

Purpose of the Study:

  • To investigate the impact of type 2 diabetes and other atherosclerosis risk factors on intracranial vascular resistance.
  • To assess intracranial vascular resistance in patients with a history of stroke or transient ischemic attack.

Main Methods:

  • 103 stroke patients underwent transcranial Doppler (TCD) investigations.
  • Pulsatility index (PI) of intracranial arteries was calculated using Gosling's method.
  • Maximal PI was used to quantify the most severe intracranial vascular damage.

Main Results:

  • Diabetic patients exhibited significantly higher PI in all intracranial arteries compared to non-diabetics.
  • Maximal PI was substantially higher in diabetic patients (1.24 ± 0.25) versus non-diabetics (1.00 ± 0.23).
  • Diabetes and patient age were the sole significant predictors of maximal PI in multivariate analysis.

Conclusions:

  • Type 2 diabetes is associated with increased intracranial arterial resistance post-stroke.
  • Diabetic stroke patients demonstrate more severe damage to cerebral blood flow.
  • Elevated intracranial vascular resistance in diabetes is independent of hypertension.
Abstract

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