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| WordWatcher |
| Stedman's WordWatcher provides you with access to precise, accurate and case-correct terms covering a wide range of areas, including laboratory tests, diagnostic procedures, surgical operations, and equipment/instrumentation. For previous postings, please click on a listing on the right hand menu bar.
Please note: Stedman's WordWatcher has been discontinued from stedmans.com; however, we are considering publishing WordWatcher in another format. If you are interested in seeing WordWatcher continued as a publication, please let us know by contacting us at stedmans@lww.com. |
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Laboratory Tests:
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| interleukin-18 (IL-18) assay |
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Synonyms: none |
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Usage: evaluation of patients with hematologic malignancies |
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Method: semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR) and immunohistochemistry |
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Specimen: blood or bone marrow |
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Comments: IL-18 is elevated in patients with certain hematologic malignancies and might be involved in the proliferation of certain leukemic cells in vivo through an autocrine mechanism |
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Source: Adapted from Zhang B, Rao Q, Zheng G, et al. Expression and significance of IL-18 in the bone marrow of patients with hematological diseases. Chinese Medical Journal 2003;116(2):218-221. |
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Diagnostic Procedures:
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| magnetic resonance cholangiopancreatography in suspected biliary disease |
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Synonyms: none |
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Indications: to estimate the overall sensitivity of magnetic resonance cholangiopancreatography (MRCP) in suspected biliary obstruction and to evaluate clinically important subgroups |
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Method: observers graded study quality, which included blinding, use of a single (versus composite) gold standard, and nonselective use of the gold standard |
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Normal Findings: MRCP had a high overall pooled sensitivity; the procedure was less sensitive for stones, odds ratio, and malignant conditions than for the presence of obstruction |
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Comments: MRCP is a noninvasive imaging test with excellent overall sensitivity and specificity for demonstrating the level and presence of biliary obstruction; however, it seems less sensitive for detecting stones or differentiating malignant from benign obstruction |
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Source: Adapted from Romagnuolo J, Bardou M, Rahme E, et al. Magnetic cholangiopancreatography: A meta-analysis of test performance in suspected biliary disease. Annals of Internal Medicine 2003;139(7):547-554. |
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Surgical Operations:
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| robot-assisted navigated neuroendoscopy |
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Description: Evolution 1 Precision robot neurosurgical tool for precise steering of instruments with the cranium; a hexapod robot or Stewart platform was selected as the most suitable kinematic structure for the operating robot; the mobile platform will accept different types of surgical instruments; rigid ventriculoscope was fixed to the instrument holder and registered for neuronavigation; lens scopes connected to a video unit were used; after registration, burr hole was placed; using a joystick, the neurosurgeon guided the movements of the ventriculoscope and slowly moved through the brain tissue to the ventricles or cystic lesion; endoscope inserted into the ventriculoscope and procedure continued; completed as necessary for the specific lesions; ventriculoscope slowly moved upward and procedure finished |
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Anatomy: brain; cranium; horn of ventricle; ventricular wall |
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Equipment: Evolution 1 Precision robot; endoscope; hexapod robot; Stewart platform; joystick; lens scope; ventriculoscope; video unit |
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Source: Adapted from Zimmerman M, Krishnan R, Seifert V. Robot-assisted navigation neuroendoscopy. Neurosurgery Journal 2002;51(6):1446-1450. |
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Instrument/Device/Equipment:
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| Arndt endobronchial blocker |
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Description: used to differentially intubate a patient’s bronchus in order to isolate the left or right lung for procedures which require one-lung ventilation |
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Source: Cook Critical Care product information. Bloomington, IN. |
| A-scan ultrasound unit |
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Description: ophthalmologic ultrasound for ocular dimension measurements |
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Source: Allergan-Humphrey product information. San Leandro, CA. |
| Assistant Free leg stabilizer |
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Description: used with arthroscopic knee surgery to hold the leg in position |
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Source: Innomed product information. Savannah, GA. |
| Atrium 3600 pleural drainage unit |
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Description: pleural drainage unit |
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Source: Atrium Medical Corp. product information. Hudson, NH. |
| Atrium 3612 pediatric pleural drainage unit |
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Description: pleural drainage unit for pediatric use |
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Source: Atrium Medical Corp. product information. Hudson, NH. |
| Attain pacemaker lead |
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Description: coronary vein pacemaker lead |
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Source: Medtronic product information. Granada Hills, CA. |
| Awh serrated pick |
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Description: 25ga; for use in ophthalmology surgical procedures |
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Source: Synergetics Inc. product information. St. Charles, MO. |
| Axius coronary off-pump system |
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Description: coronary system that features complete revascularization off-pump access and stabilization techniques; called OPCRES (off-pump coronary revascularization with endoscopic saphenous vein harvesting); used with VasoView harvesting system |
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Source: Guidant product information. Santa Clara, CA. |
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