Relationship between kidney damage and stroke types in Japanese patients.
Summary of "Relationship between kidney damage and stroke types in Japanese patients."
Kidney disease is a known risk factor for stroke. This study investigated the relationship between kidney damage and stroke types.
A total of 525 incident stroke patients were registered and followed for 1 year. The prevalence of kidney damage [proteinuria and/or renal insufficiency (estimated glomerular filtration rate <60 ml/min/1.73 m(2))] in incident stroke and its effects on 1-year prognosis were examined.
Among all stroke patients, kidney damage and its component (proteinuria and renal insufficiency) were commonly observed (48.2, 25.5, and 33.9%, respectively). The prevalence of ischemic stroke was significantly higher in patients with kidney damage (75.9%) than in those without (58.9%). The most frequent type of stroke among all patients with kidney damage and renal insufficiency only was cardioembolic infarction. In contrast, in patients with proteinuria only and patients without kidney damage, the most frequent type was subcortical and subarachnoid hemorrhage, respectively. Multiple logistic regression analysis showed that kidney damage or the combination of its components were independently associated with 1-year death [odds ratio (OR) 3.04, 95% confidence interval (CI) 1.40-6.59, P = 0.005 for kidney damage, OR 2.82, 95% CI 1.05-7.58, P = 0.040 for proteinuria only, and OR 5.77, 95% CI 2.23-15.0, P < 0.001 for both proteinuria and renal insufficiency]. In addition, for 1-year outcomes, there were selective associations between ischemic stroke and proteinuria and between hemorrhagic stroke and renal insufficiency.
This study shows that kidney damage is common in Japanese stroke patients, and proteinuria and renal insufficiency are differentially related to development and prognosis, depending stroke types.
Department of Nephrology, Yamagata City Hospital Saiseikan, Yamagata, Japan.
This article was published in the following journal.
Name: Clinical and experimental nephrology
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22302085
- DOI: http://dx.doi.org/10.1007/s10157-012-0594-6
Medical and Biotech [MESH] Definitions
Kidney Failure, Chronic
The end-stage of CHRONIC RENAL INSUFFICIENCY. It is characterized by the severe irreversible kidney damage (as measured by the level of PROTEINURIA) and the reduction in GLOMERULAR FILTRATION RATE to less than 15 ml per min (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002). These patients generally require HEMODIALYSIS or KIDNEY TRANSPLANTATION.
Encephalitis Virus, Murray Valley
A species of FLAVIVIRUS, one of the Japanese encephalitis virus group (ENCEPHALITIS VIRUSES, JAPANESE), found in Australia and New Guinea. It causes a fulminating viremia resembling Japanese encephalitis (ENCEPHALITIS, JAPANESE).
Encephalitis Virus, Japanese
A species of FLAVIVIRUS, one of the Japanese encephalitis virus group (ENCEPHALITIS VIRUSES, JAPANESE), which is the etiological agent of Japanese encephalitis found in Asia, southeast Asia, and the Indian subcontinent.
Drugs intended to prevent damage to the brain or spinal cord from ischemia, stroke, convulsions, or trauma. Some must be administered before the event, but others may be effective for some time after. They act by a variety of mechanisms, but often directly or indirectly minimize the damage produced by endogenous excitatory amino acids.
Renal Insufficiency, Chronic
Conditions in which the KIDNEYS perform below the normal level for more than three months. Chronic kidney insufficiency is classified by five stages according to the decline in GLOMERULAR FILTRATION RATE and the degree of kidney damage (as measured by the level of PROTEINURIA). The most severe form is the end-stage renal disease (CHRONIC KIDNEY FAILURE). (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002)
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