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J van Overbeeke

Publications and source records attributed to J van Overbeeke.

4 recordsLinked to original sources
PubMed2006

Interface pressure measurement during surgery: a comparison of four operating table surfaces.

OBJECTIVE: To compare the pressure-reducing and pressure-redistributing characteristics of four operating room (OR) table mattresses using interface pressure measurements, in two positions adopted for surgical procedures. METHOD: Support surfaces were randomly assigned to 80 patients. These were: an overlay pad filled with fibres (the standard OR mattress), a custom-made viscoelastic polyurethane foam mattress, an inflatable mattress with air-filled cells and a fluid mattress. An XSENSOR full-body pressure-mapping pad was used to record interface pressures of 40 patients in the supine position and 40 patients in the lithotomy position. Measurements were analysed for peak pressure, peak pressure index, total contact surface area and the occurrence of a significant increase in interface pressure during the surgical procedure. RESULTS: The highest interface pressures were measured on the standard mattress, in both the supine and lithotomy position. Overall, the fluid mattress showed the best pressure-reducing and pressure-redistributing capacities. CONCLUSION: As long as no reference values are available for interface pressures under which no pressure-related damage will occur, clinical testing of OR table surfaces is still necessary.

Beds↗
PubMed2003

Microanatomy of the blood supply to the optic nerve.

The vascularization to the optic nerve is understood to come from the superior hypophyseal arteries and ophthalmic artery. However, anatomical studies about their detailed distribution to the optic nerve, especially its intracanalicular part, are rare. As the optic nerve is very prone to compression inside the optic canal, the vascularization here is especially at risk. This study shows that the superior hypophyseal arteries are the main source of blood supply to the intracranial and intracanalicular part of the optic nerve. The contribution of the ophthalmic artery to this part of the nerve is negligible. This artery mainly contributes to the intraorbital part of the optic nerve by means of the short and long ciliary arteries and the central retinal artery.

Cadaver↗
PubMed1999

Trigeminal neuropathy secondary to perineural invasion of head and neck carcinomas.

Perineural spread of head and neck cancer is an uncommon cause of cranial neuropathy. We studied five patients with cranial neuropathy resulting from perineural spread of head and neck carcinomas. Trigeminal neuropathy with facial pain or paresthesias was the most common clinical manifestation. MRI in the coronal plane under gadolinium enhancement established the diagnosis by visualization of the lower divisions of the trigeminal nerve. Perineural tumor spread can cause headaches in patients with head and neck cancer.

Adult↗