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Biomedical subjects

Howard Weiss

Publications and source records attributed to Howard Weiss.

6 recordsLinked to original sources
PubMed2005

Camptocormia in a patient with multiple system atrophy.

The term "camptocormia" describes a severe forward-flexed posture. Although initially used to describe a conversion disorder, early authors also recognized organic camptocormia occurring in old age, or "camptocormie senile," as well as traumatic and arthritic camptocormia. More recently, camptocormia has been described in patients with Parkinson's disease and in an individual with parkinsonism. We describe a case of progressive camptocormia as part of the initial presentation of a patient with multiple system atrophy.

Antiparkinson Agents↗
PubMed2002

Cryptic pituitary hemorrhage presenting with headache.

We report a case of pituitary hemorrhage and review the literature on that condition. Our patient presented with a sudden bifrontal headache associated with vague transient visual blurring but without nausea or other associated symptoms. After a negative workup at another hospital, including an unremarkable brain computed tomography without contrast, and resolution of headache following treatment with injectable sumatriptan, he was diagnosed with "atypical migraine." The patient's symptoms soon returned, and brain magnetic resonance imaging revealed an enlarged, cystic pituitary gland with a small intraparenchymal hemorrhage.

Adenoma↗
PubMed2002

Glaucoma patients' assessment of their visual function and quality of life.

PURPOSE: To determine how glaucoma and glaucoma suspect patients' rating of their vision correlates with Esterman binocular visual field testing and other visual function tests. METHODS: One hundred ninety-one glaucoma patients and 46 glaucoma suspect patients underwent binocular visual field testing and evaluated their vision using the linear rating scale and time-tradeoff utility tests, the National Eye Institute Visual Functional Questionnaire (NEI VFQ-25), and the Short Form 36 (SF-36) quality-of-life instruments. RESULTS: The mean Esterman score was 88.2 +/- 17.4 for the glaucoma subjects and 95.2 + 6.9 for glaucoma suspect subjects (maximum score 100). On a scale from 0 (blind) to 100 (ideal), the mean rating of vision for glaucoma patients and glaucoma suspect patients was 74.8 +/- 17.3 and 78.9 +/- 18.5, respectively. The Esterman test correlated moderately with the overall NEI VFQ-25 score (partial correlation coefficient (PCC) = 0.32, P = 0.001), but only weakly with the linear rating scale (PCC = 0.17, P = 0.02), and the time-tradeoff (PCC = 0.14, P = 0.06). CONCLUSION: Utility values that glaucoma and glaucoma suspect patients assign to their vision do not correlate well with Esterman results. A challenge for the future is the design of clinical tests of vision that better correlate with patient perceptions.

Aged↗
PubMedDate not supplied

The Interplanetary Internet: a communications infrastructure for Mars exploration.

A strategy is being developed whereby the current set of internationally standardized space data communications protocols can be incrementally evolved so that a first version of an operational "Interplanetary Internet" is feasible by the end of the decade. This paper describes its architectural concepts, discusses the current set of standard space data communications capabilities that exist to support Mars exploration and reviews proposed new developments. We also speculate that these current capabilities can grow to support future scenarios where human intelligence is widely distributed across the Solar System and day-to-day communications dialog between planets is routine.

Communication↗