A Case of Successful Treatment of Gram-Negative Sepsis Associated with Toxic Myelosuppression in a Patient with HIV-Associated Non-Hodgkin’s Lymphoma

This article presents a clinical case of successful treatment of gram-negative sepsis in a patient with HIV-associated non-Hodgkin’s lymphoma. The patient was admitted to the intensive care unit in critical condition after the third course of polychemotherapy according to the ICE scheme. The severity of the condition was due to nosocomial pneumonia, septic shock, multiple organ failure, immunosuppression against the background of PCT and HIV infection, and the lack of specific treatment for HIV infection. Despite the absence of a positive blood culture throughout the entire treatment period, the diagnosis of sepsis was not in doubt, according to the criteria of the 2001 International Consensus Conference on Sepsis. The cause of the septic state was the combined effect of bacteria (Pseudomonas aeruginosa) and fungi (Candida albicans, Candida krusei) against the background of persistent HIV infection. The patient’s pneumonia was destructive and was twice aggravated by spontaneous pneumothorax. At the initial stage, intensive therapy led to positive dynamics. The severity of the systemic inflammatory response decreased, the acute respiratory insufficiency regressed, the X-ray pattern improved, and laboratory parameters stabilized. Despite the continued intensive therapy in the former volume on day 19, a sharply negative dynamics was noted, which led to a re-transfer of the patient to artificial ventilation of the lungs. The replacement of antibiotics and the specific treatment of HIV infection led to the patient’s recovery. In the future, chemotherapy was not carried out. Remission of the disease lasts six years

Results of external quality control study in flow cytometric acute lymphoblastic leukemia diagnostics

Comparison of interpretation of acute lymphoblastic leukemia (ALL) flow cytometric diagnostics data was the aim of the study. Immunophenotyping data obtained from 10 patients with ALL were analysed separately in 26 laboratories from Russian Federation and Kazahstan. Results comparison showed four main type of discordance: B-lineage ALL diagnostics during heavy bone marrow regeneration, great variability of T-ALL interpretation, complexity of ambiguous lineage acute leukemia and, finally, very different report types, unique for each laboratory. All these problems are the serious obstacles for standardization of flow cytometric ALL diagnostics in multicenter setting. Continuation of similar QC rounds following by consecutive discussions with further development of consensus diagnostic algorithm could be the first step for standardization of ALL immunophenotyping in Russian Federation and CIS countries