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Incidence, Comorbidities, and Mortality in Idiopathic Normal Pressure Hydrocephalus

Pyykko, Okko T. (author)
Kuopio Univ Hosp, Neurosurg NeuroCtr, Kuopio, Finland
Nerg, Ossi (author)
Kuopio Univ Hosp, Neurol NeuroCtr, Kuopio, Finland;Univ Eastern Finland, Inst Clin Med Neurol, Kuopio, Finland
Niskasaari, Hanna-Mari (author)
Kuopio Univ Hosp, Neurosurg NeuroCtr, Kuopio, Finland
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Niskasaari, Timo (author)
Kuopio Univ Hosp, Neurosurg NeuroCtr, Kuopio, Finland
Koivisto, Anne M. (author)
Kuopio Univ Hosp, Neurol NeuroCtr, Kuopio, Finland;Univ Eastern Finland, Inst Clin Med Neurol, Kuopio, Finland
Hiltunen, Mikko (author)
Univ Eastern Finland, Inst Biomed, Dept Neurol, Kuopio Univ Hosp, Kuopio, Finland
Pihlajamaki, Jussi (author)
Univ Eastern Finland, Inst Publ Hlth & Clin Nutr, Dept Clin Nutr, Kuopio, Finland;Kuopio Univ Hosp, Clin Nutr & Obes Ctr, Kuopio, Finland
Rauramaa, Tuomas (author)
Kuopio Univ Hosp, Dept Pathol, Kuopio, Finland;Univ Eastern Finland, Inst Clin Med Pathol, Kuopio, Finland
Kojoukhova, Maria (author)
Kuopio Univ Hosp, Neurosurg NeuroCtr, Kuopio, Finland
Alafuzoff, Irina (author)
Uppsala universitet,Klinisk och experimentell patologi,Irina Alafuzoff
Soininen, Hilkka (author)
Kuopio Univ Hosp, Neurol NeuroCtr, Kuopio, Finland;Univ Eastern Finland, Inst Clin Med Neurol, Kuopio, Finland
Jaaskelainen, Juha E. (author)
Kuopio Univ Hosp, Neurosurg NeuroCtr, Kuopio, Finland
Leinonen, Ville (author)
Kuopio Univ Hosp, Neurosurg NeuroCtr, Kuopio, Finland
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 (creator_code:org_t)
ELSEVIER SCIENCE INC, 2018
2018
English.
In: World Neurosurgery. - : ELSEVIER SCIENCE INC. - 1878-8750 .- 1878-8769. ; 112, s. E624-E631
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • OBJECT: To investigate the incidence, comorbidities, mortality, and causes of death in idiopathic normal pressure hydrocephalus (iNPH). METHODS: A cohort of 536 patients with possible NPH from a defined population with a median follow-up time of 5.1 years, (range 0.04-19.9 years) was included in the study. Patients were evaluated by brain imaging and intraventricular pressure monitoring, with a brain biopsy specimen immunostained against amyloid-beta and hyper-phosphorylated tau. Hospital records were reviewed for vascular diseases and type 2 diabetes mellitus (T2DM). Death certificates and yearly population of the catchment area were obtained from national registries. RESULTS: A total of 283 patients had a clinical diagnosis of iNPH, leading to a median annual incidence of 1.58 iNPH patients per 100,000 inhabitants (range, 0.8-4.5). Alzeimer disease-related brain biopsy findings were less frequent in iNPH patients than in non-iNPH patients (P < 0.05). An overrepresentation of hypertension (52% vs. 33%, P < 0.001) and T2DM (23% vs. 13%, P = 0.002) was noted in iNPH patients. Age (hazard ratio [HR] 1.04/year, 95% confidence interval [CI] 1.03-1.06, P< 0.001) and T2DM (HR 1.63, 95% CI 1.23-2.16, P < 0.001) increased the risk of death in the iNPH patients and in the total population. iNPH was associated with decreased risk of death (HR 0.63, 95% CI 0.50-0.78, P < 0.001). The most frequent causes of death were cardiovascular and cerebrovascular disease. Dementia as a cause of death was more common in non-iNPH patients (27% vs. 10%, P < 0.001). CONCLUSIONS: Hypertension and T2DM are common in iNPH and the latter causes excess mortality in the affected patients.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Neurologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Neurology (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Klinisk laboratoriemedicin (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Clinical Laboratory Medicine (hsv//eng)

Keyword

Cause of death
Comorbidity
Incidence
Mortality
Normal pressure hydrocephalus
Survival
Patologi
Pathology

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