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Biomedical subjects

C B Wilson

Publications and source records attributed to C B Wilson.

At least 37 records · Page 2Linked to original sources

Microsurgical approach to the anterior cervical spine and spinal cord.

When the cervical spine is affected by disease that is predominantly anterior, we prefer to take an anterior operative approach. Whether or not fusion is indicated depends largely upon the case. In general, we do not fuse the spine unless it is unstable. Widening of the spinal canal and the neural foramina can be done effectively by the anterior route, with or without anterior fusion. When the spine is unstable from disease affecting the vertebral bodies, we routinely fuse with bone graft or provide mechanical stability with a vertebral body prosthesis if life expectancy is short.

Bone Transplantation

Antiglomerular basement membrane antibody-mediated glomerulonephritis and Goodpasture's syndrome.

The originally dismal prognosis associated with anti-GBM Ab-mediated GN and Goodpasture's syndrome may be changing as we recognize a broader spectrum of disease, improve general supportive care, and improve specific treatment. Immunosuppressive therapy, if started early in the course of disease, may prevent or allow recovery from renal failure and may also result in cessation of recurrent pulmonary hemorrhage in most patients with this form of Goodpasture's syndrome. The administration of pharmacologic doses of corticosteroids intravenously can result in cessation of and dramatic recovery from severe pulmonary hemorrhage and obviate the need for emergency bilateral nephrectomy. Plasmaspheresis may represent a useful therapeutic procedure for the immediate and long term reduction in amounts of circulating anti-GBM Ab, but the definition of its true value and role awaits completion of controlled, prospective trials. Immunosuppressive therapy, with or without plasmapheresis, can reduce quantities of anti-GBM Ab in serum to undetectable levels without nephrectomy. Thus, it is likely, but not proven, that nephrectomy can be discontinued as a routine pretransplantation procedure in patients with anti-GBM Ab mediated GN. Finally, in patients who suffer irreversible renal failure, renal transplantation can be successfully undertaken with minimal risk of recurrent disease, when circulating anti-GBM Ab becomes undetectable.

Adolescent

Treatment of Goodpasture's syndrome with immunosuppression and plasmapheresis.

A 14-year-old boy with Goodpasture's syndrome induced by anti-glomerular-basement-membrane (gmb) antibody exhibited declining renal function, in association with a progressive increase in the level of serum anti-GBM antibody. Treatment with prednisone, cyclophosphamide, and plasmapheresis was associated with rapid disappearance of the serum anti-GMB antibody and temporary stabilization of renal function.

Adolescent

Computerized tomographic diagnosis: pitfalls for neurosurgeons.

Computerized tomography as a diagnostic procedure is characterized by its high sensitivity but limited specificity. This lack of specificity may result in an erroneous diagnosis and, possibly, in ill-advised therapy unless clinical and objective data are carefully considered in interpreting the study. The most common pitfalls encountered are the phenomena of contrast enhancement of infarcts and mass effect associated with infarcts. Many different pathological processes can have similar enhancement patterns. The evolution of high density, acute hemorrhage to isodense areas in the chronic hematoma can become a serious diagnostic problem unless an appropriate history is available. The authors discuss 30 cases in which misinterpretation of CT scans resulted in erroneous diagnoses. Seventeen of these patients underwent operation.

Adult

Computerized tomography and pathological correlation in cystic meningiomas. Report of two cases.

Meningiomas have been reported to have associated areas of surrounding low density on computerized tomography (CT). These low-density areas may represent edema, widened subarachnoid spaces, loculated cerebrospinal fluid, demyelination, or adjacent tumor. Two cases are presented in which this adjacent area of low density represented a tumor cyst. Recognition is important as the CT appearance of these lesions may simulate a metastatic tumor.

Humans

Recurrent transient ischemic attacks secondary to an embolizing saccular middle cerebral artery aneurysm. Case report.

Over a 1-year period, a 60-year-old woman had nine episodes of transient weakness, clumsiness, and hypesthesia of the right upper extremity. Angiography revealed normal extracranial vessels and a left middle cerebral artery aneurysm. The aneurysmal sac, removed at operation, had an organized thrombus, which was believed to be the cause of the transient ischemic attacks. Postoperatively, the patient has remained free of neurological symptoms.

Female

Microsurgical treatment of intracranial vascular malformations.

In the period 1968 to 1978, 83 vascular malformations (AVM's) were treated by operation: 65 were excised and 18 were managed by interruption of afferent arteries. Three cryptic AVM's (two in the thalamus and one in the caudate nucleus) were discovered during exploration of hematomas in normotensive young women. All three of these small malformations were detected on computerized tomographic scans; none was apparent on preoperative angiograms. Two of the four deaths in this series occurred after excision of large, high-flow fistulas; the proposed cause was restoration of normal perfusion pressure in a chronically ischemic hemisphere rendered incapable of autoregulation. The addition of operative adjuncts, in particular, bipolar coagulation and operative microscopy, has extended traditional indications for operation to include favorably situated AVM's that have not bled and certain AVM's situated in critical regions of the brain.

Adolescent

Cushing's disease with pituitary apoplexy leading to hypopituitarism, empty sella, and spontaneous fracture of the dorsum sellae. Case report.

A patient with a pituitary adenoma secreting adrenocorticotropin hormone manifested panhypopituitarism after an episode of pituitary apoplexy. The previously elevated urinary levels of 17-ketogenic steroids dropped sharply, and plasma cortisol became undetectable. The apoplexy also resulted in a partially empty sella on which the dorsum sellae collapsed. Recurrent Cushing's disease developed and was cured by transsphenoidal resection of a microadenoma.

Adenoma, Chromophobe

Prolactin-secreting tumors in men: surgical cure.

Two men presented with decreasing libido and impotence. Endocrine evaluation showed that they both had low levels of serum testosterone and a prolactin-secreting adenoma. Transsphenoidal removal of their tumors resulted in normalization of serum prolactin and testosterone concentrations and normalization of sexual function. These patients represent the first two nonacromegalic men with prolactin-secreting tumors and hypogonadism in whom surgical resection of their tumors resulted in a complete clinical and biochemical remission. We discuss the effects of elevated prolactin on male sexual function.

Adenoma

Predictive value of cerebrospinal fluid polyamines in medulloblastoma.

Seventy-five cerebrospinal fluid polyamine determinations were evaluated in 16 patients with medulloblastoma. Parameters utilized in evaluating patient status for correlation with the polyamine concentrations were neurological examination, computerized tomography, radionuclide scan, myelography, and cerebrospinal fluid cytology. Fifteen of the 16 patients showed absolute correlation with the eventual clinical picture. One determination on one patient resulted in a false negative. No false positives have been observed to date.

Adolescent