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Biomedical subjects

C S Reid

Publications and source records attributed to C S Reid.

16 recordsLinked to original sources

Management of major craniofacial anomalies: a pediatric perspective.

Ethical decision-making regarding complex congenital anomalies has evolved along with improvements in neonatal medical and surgical care, but also reflects a changed medical and social environment. The current process is complex and cumbersome, with no guarantee of consensus, and frequently leads to indecision and disagreement. Improvement of the process will require continued professional education, as well as better reconciliation of areas of ambivalence among professionals, families, and society.

Attitude of Health Personnel

Growth of the foramen magnum in achondroplasia.

Foramen magnum growth curves in achondroplasia and in the general population are presented. The achondroplastic foramen magnum is small at birth, and during the first year it has a severely impaired rate of growth especially in the transverse dimension. This markedly diminished growth results not only from abnormal endochondral bone growth but also because of abnormal placement and premature fusion of the synchondroses. Evaluation of the foramen magnum in achondroplasia should address absolute size of the transverse and sagittal dimensions, shape, and growth centers to determine growth potential of this area.

Achondroplasia

Chemotherapy-associated eccrine hidradenitis: neutrophilic eccrine hidradenitis reevaluated: the role of neutrophilic infiltration.

Two cases of chemotherapy-associated eccrine hidradenitis are presented. Previous cases have been labeled "neutrophilic eccrine hidradenitis" (NEH). Both cases reported herein involve neutropenic patients and are notable for the absence of neutrophils on histologic examination. Oncologists need to be aware of this newly described process, and this rash must be added to the differential diagnosis of the neutropenic oncology patient. The role of neutrophils in this disorder is discussed, and a new term, "chemotherapy-associated eccrine hidradenitis," is suggested for this unusual process.

Antineoplastic Agents

Cervicomedullary compression in young patients with achondroplasia: value of comprehensive neurologic and respiratory evaluation.

We studied prospectively 26 young patients with achondroplasia to test two hypotheses: that respiratory problems may be the result of occult spinal cord compression, and that achondroplastic patients with cord compression might have occult respiratory abnormalities. Respiratory abnormalities were present in 85%, the majority caused by a primary problem of the pulmonary system, such as small thoracic cage or obstructed airway. Three patients had hypoxemia, recurrent cyanotic spells, and episodes of respiratory distress explainable only by cervicomedullary cord compression; in each patient, respiratory problems were alleviated by decompressive surgery. Another six patients with cervicomedullary compression had, in addition, at least one primary pulmonary cause of respiratory problems. After decompressive surgery the respiratory problems improved in three and were unchanged in three. Reconstructed sagittal CT images proved the most sensitive technique for detecting craniocervical stenosis as a cause of cervicomedullary cord compression, although some degree of stenosis was present in nearly all of the patients.

Achondroplasia

Pediatric patients with achondroplasia: CT evaluation of the craniocervical junction.

Twenty-six patients (4 months to 6 years old) with achondroplasia complicated by sleep apnea and/or other neurologic manifestations underwent plain computed tomography (CT) of the craniocervical junction; six also underwent CT myelography. For objectification, multiplanar reconstruction was used to complement axial plane measurements by providing coronal and sagittal measurements; multiplanar reconstruction also improved perception of the longitudinal relationships between the brain stem and subarachnoid space. A narrow subarachnoid space was found in all 26 patients; marked cord compression was present in nine, six of whom underwent CT myelography. These six had marked focal obliteration of the subarachnoid space on both plain CT and CT myelography. Since the subarachnoid space immediately above and below the craniocervical junction is normally capacious, when marked constriction was present, no additional information could have been gained from CT myelography. Thus, plain CT was shown to be sufficient for surgical planning (suboccipital decompression) in nine patients with cord compression due to achondroplasia.

Achondroplasia

AIDS and needlesticks.

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Acquired Immunodeficiency Syndrome