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Results for “Reticulocyte Count”

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PubMed1994

Early detection of hematopoietic engraftment after bone marrow and peripheral blood stem cell transplantation by highly fluorescent reticulocyte counts.

At present, the appearance of neutrophils in the peripheral blood is considered to be the earliest sign of hematopoietic regeneration after myeloablative chemoradiotherapy. We studied erythroid regeneration in 27 allogeneic and 21 autologous marrow recipients using an automated reticulocyte counter employing a flow cytometric technique. Thereby, reticulocytes can be divided into a high, moderate and low fluorescent fraction according to RNA content. Marrow ablation caused an immediate and rapid fall in highly fluorescent reticulocytes (HFR) to zero in all patients. HFR reappeared after a median time of 7 days after allogeneic and 11 days after autologous marrow grafting. This was 7 and 2 days earlier than the appearance of first neutrophils. In allogeneic marrow recipients given erythropoetin after marrow infusion the median time to reach HFR of 0.2 and 0.5 x 10(9)/l was significantly shorter than time to reach similar absolute neutrophil counts (ANC). In allogeneic marrow recipients treated with G-CSF time to rise of HFR and ANC was almost exactly the same. Thus, automated flow cytometric reticulocyte counting allows early detection of hematopoietic regeneration and may be of clinical value for the early diagnosis of inadequate marrow function after marrow transplantation and the monitoring of erythroid regeneration under cytokine administration.

Adolescent↗
PubMed1999

Elevated reticulocyte count--a clue to the diagnosis of haemolytic-uraemic syndrome (HUS) associated with gemcitabine therapy for metastatic duodenal papillary carcinoma: a case report.

In adults, the haemolytic-uraemic syndrome (HUS) is associated with probable causative factors in the minority of all cases. Cytotoxic drugs are one of these potential causative agents. Although metastatic cancer by itself is a recognized risk-factor for the development of HUS, therapy with mitomycin-C, with cis-platinum, and with bleomycin carries a significant, albeit extremely small, risk for the development of HUS, compared with all other cytotoxic drugs. Gemcitabine is a novel cytotoxic drug with promising activity against pancreatic adenocarcinoma. We are reporting on one patient with metastatic duodenal papillary carcinoma developing HUS while on weekly gemcitabine therapy. The presenting features in this patient were non-cardiac pulmonary oedema, renal failure, thrombocytopenia and haemolytic anaemia. The diagnosis of HUS was made on the day of admission of the patient to this institution. Upon aggressive therapy, including one single haemodialysis and five plasmaphereses, the patient recovered uneventfully, with modestly elevated creatinine-values as a remnant of the acute illness. Re-exposure to gemcitabine 6 months after the episode of HUS instituted for progressive carcinoma, thus far has not caused another episode of HUS.

Adult↗