Nederlands tijdschrift voor geneeskunde
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Ned Tijdschr Geneeskd · Jan 2011
Review[Ethical review of biobanks in The Netherlands: lessons from the String of Pearls Initiative].
Ethical and legal aspects of biobanking continue to be a topic of concern. The String of Pearls Initiative (PSI) helped establish new norms for biobank governance in The Netherlands. This article gives an overview of issues that emerged from the medical-ethical review processes of PSI. ⋯ Key issues included the legal status of prospective research-dedicated biobanks, informed consent, monitoring of the use of biobanks, and alignment of biobanking policies both within and between research departments. The article calls on all actors involved in biobanking to continue to strive for the harmonization of biobanking policies. A certain degree of central coordination is crucial in order to improve on collaborative biobanking initiatives.
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Hip resurfacing arthroplasty was introduced as an alternative to the conventional total hip arthroplasty which had shown suboptimal results in younger patients. Application of the resurfacing technique in younger patients has increased over the last few years. To date, no randomized controlled trials with a minimum follow-up span of 10 years comparing hip resurfacing to conventional hip replacement have been conducted in patients under 55 years of age. ⋯ In addition to these disappointing revision rates, the complication of aseptic lymphocytic vasculitis caused by metal particles evoking a local tissue reaction has been increasingly reported. The resurfacing procedure recently received some negative media attention in the Netherlands, leading to confusion among patients. In order to ease patient doubts, it is important to correctly inform them as to the type of implant used, for example, by means of the website or an information card.
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3-5% of patients with traumatic or iatrogenic peripheral nerve injury develop a painful neuroma, especially following trauma of small cutaneous sensory nerve branches. Neuroma pain is difficult to treat and often leads to loss of function and reduction of quality of life. Patients with a painful neuroma present with spontaneous electric, shooting or burning pain, allodynia, hyperalgesia and cold intolerance. ⋯ Lasting pain relief is possible by means of surgical neuroma treatment performed by a plastic surgeon. Surgical treatment consists of repair or denervation of the nerve with relocation of the nerve stump in bone or muscle tissue or a vein. Referral of neuroma patients without delay to a plastic surgeon or multidisciplinary consultation is important, because the symptoms become increasingly difficult to treat over time.
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In recent years tomographic hybrid scanners have been quickly introduced in nuclear medicine: single-photon emission computed tomography (SPECT)-CT and positron emission tomography (PET)-CT.- Both SPECT-CT and PET-CT techniques provide a higher diagnostic accuracy than conventional (non-tomographic, non-hybrid) bone scintigraphy (bone scan).- Differences between 99mTc hydroxymethylene diphosphonate (HDP) SPECT-CT or 99mTc methylene diphosphonate (MDP) SPECT-CT and 18F-fluoride PET-CT bone scanning relate to image quality, technique, availability, quantification possibilities, radiation dosimetry and financial cost.- Indications for these techniques will especially lie in the field of more accurate detection of skeletal metastases than with bone scans, patients with unexplained musculoskeletal pain, the diagnostic stage after conventional X-ray and/or MRI, and quantification of bone metabolism.
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Ned Tijdschr Geneeskd · Jan 2011
Review[Facial transplantation: an overview of 8 of the 13 operations].
Composite tissue allotransplantation (CTA) is a new development in reconstructive surgery that makes it possible to use identical tissue to repair large mutilating deformities, to the face for example. Until now, 13 face transplants have been performed worldwide. The functional and aesthetic results are encouraging. However, the lifelong immunosuppressive therapy necessary to prevent rejection has considerable side effects.