Publications by authors named "H J van Roijen"

Background: Frailty is a geriatric condition that is associated with an increased risk of mortality and functional decline. To date, mainly the Groningen Frailty Indicator (GFI) and Hospital Safety Management (VeiligheidsManagementSysteem [VMS]) frailty score are used to determine frailty in several hospitals in the Netherlands. However, it is yet unknown, which method has the best predictive value on clinical outcomes.

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Objective: To investigate the relationship between orthostatic hypotension (OH) and muscle strength versus time to successful rehabilitation within elderly patients with hip fracture.

Design: A prospective, observational cohort study. Handgrip strength was measured at the day of admission and OH as soon as possible after surgery.

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We describe the case of a 64-year-old patient with a deep venous thrombosis unusually caused by the obstruction of a severely distended atonic bladder as a result of an iatrogenic injury. Distention of the urinary bladder has previously been described to elevate pressure in the iliac veins, but has seldom been linked to the development of deep venous thrombosis. Through this case, we want to attract attention to this major complication of bladder distention, and we emphasize the importance of proper physical examination.

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Vasectomy is a simple and reliable method of contraception. Problems associated with vasectomy include inadequate patient information, complications of the procedure e.g.

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During mammalian spermatogenesis, the chromatin of the spermatogenic cells is profoundly reorganized. Somatic histones are partly replaced by testis-specific histones. These histones are then replaced by transition proteins and finally by protamines.

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