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Biomedical subjects

M L Henry

Publications and source records attributed to M L Henry.

119 records · Page 7Linked to original sources
PubMed1986

Identification and treatment of cyclosporine-associated allograft thrombosis.

Endothelial injury associated with cyclosporine (CSA) therapy in the absence of rejection has resulted in irreversible intrarenal allograft thrombosis and transplant loss. Indium 111 (111In)-labeled platelet scanning is an effective way to identify those transplants that are at risk for acute loss. Two hundred prospective 111In scans were obtained (100 on allografts with normal function and 100 with transplant dysfunction of all causes). 111In scans in patients with dose-dependent CSA nephrotoxicity (N = 58) and biopsy proved acute rejection (N = 22) were negative. Grossly abnormal scans (three to eight times greater than hepatic uptake) were noted in nine recipients identified as having a hemolytic uremic-like syndrome associated with CSA use. Accelerated allograft functional loss was irreversible in six patients despite stopping CSA, systemic anticoagulation, increased steroids and antilymphocyte globulin, and infusion of fresh-frozen plasma. Three patients with grossly positive 111In scans and clinical and laboratory parameters consistent with this syndrome were treated with cessation of CSA and intra-arterial infusion of streptokinase into the renal allograft followed by systemic heparinization. Normal transplant function was regained and continues at 1, 7, and 8 months after transplant. 111In-labeled platelet scanning can noninvasively identify this syndrome of CSA-associated arteriopathy and allow for early therapy to reverse it. Intrarenal arterial streptokinase therapy is a successful way to treat acute CSA-associated arteriopathy.

Blood Platelets↗
PubMed1985

Beneficial effects of cyclosporine compared with azathioprine in cadaveric renal transplantation.

Recent reports have intimated that the use of antilymphocyte globulin in combination with azathioprine and steroids has ameliorated the beneficial affects of cyclosporine. We believe that even in the absence of significant statistical differences between patient survival rates and graft survival rates of cyclosporine-treated renal transplant patients compared with conventionally treated renal transplant patients, there are distinct advantages to cyclosporine use in renal transplantation. Twenty-three consecutive cadaveric renal transplant patients who received azathioprine, prednisone, and antilymphoblast globulin were compared with 23 cadaveric renal transplant patients who received cyclosporine and prednisone. Fewer statistically significant rejection episodes, multiple rejection episodes, and cytomegalovirus infections were demonstrated in those who received cyclosporine. Most notably, cyclosporine decreased the initial hospital stay, was associated with fewer readmissions, and therefore markedly reduced the initial cost of transplantation.

Antilymphocyte Serum↗
PubMed1983

Complications of cholecystectomy.

The authors describe the major complications that occur early--either during or soon after operation--and that occur late--weeks to years after the surgical procedure. Among the complications discussed are bile duct injury, wound infection, premature T-tube removal, and retained common duct stones.

Bile Ducts↗
PubMedDate not supplied

Are endothelial cell patterns of astrocytomas indicative of grade?

BACKGROUND: The most common primary brain tumors in children and adults are of astrocytic origin. Classic histologic grading schemes for astrocytomas have included evaluating the presence or absence of nuclear abnormalities, mitoses, vascular endothelial proliferation, and tumor necrosis. MATERIALS AND METHODS: We evaluated the vascular pattern of 17 astrocytoma surgical specimens (seven from children and 10 from adults), and four normal brains obtained at autopsy, utilizing antibody to glial fibrillary acidic protein (GFAP) and von Willebrand factor (vWF) utilizing confocal microscopy. A modified WHO classification was used. RESULTS: All tumor cases showed cells positive for GFAP. Control tissues showed a few, widely separated vessels. Pilocytic astrocytomas (four cases) showed lacy clusters of small-to-medium sized vessels, with intact vessel wall integrity. Diffuse, low grade astrocytoma (three cases) showed a staining pattern similar to control tissue; intermediate grade (one case), anaplastic astrocytoma (three cases) and gliobastoma multiforme (six cases) showed an increased vessel density with multiple small vessels (glomeruloid clusters), some with prominent intimal hyperplasia, loss of vessel wall integrity, and with numerous vWF-positive single cells/microvessels within the tumor substance. CONCLUSIONS: Evaluation of astrocytomas utilizing antibody to vWF and confocal microscopy aids in the grading of these neoplasms.

Adolescent↗