A pilot study on impact of use of medium molecular weight hydroxyethyl starch in granulocyte apheresis using Spectra Optia.

INTRODUCTION: Granulocyte transfusion (GT) is a therapeutic option for prolonged neutropenic patients with severe bacterial or fungal infections. Efficient apheresis based granulocyte collection may be better achieved by infusion of high-molecular-weight (HMW) hydroxyethyl starch (HES). But multiple adverse incidents have been reported with HMW-HES. Due to availability issues and adverse incidents related to it, use of HMW-HES has become limited. Few studies have mentioned about medium molecular weight HES (MMW-HES) (130 kDa) as efficient for this purpose with minimal adverse incidents. So, the aim was to assess the impact of the use of MMW-HES in granulocyte apheresis when using Spectra Optia. METHODOLOGY: In this observational study, donors who received MMW-HES during granulocyte harvest were included in HES group and another group who did not receive HES were grouped as non-HES. Injection G-CSF 10 microgram/kg and tablet dexamethasone 8 mg given 12 h before for non-HES group and 6 - 8 h in case of HES group blood donors. Number of adverse incidents observed were noted. Donor/procedure parameters were compared using Mann-Whitney U test / unpaired t test. RESULTS: Granulocyte yield was significantly higher in the HES group (2.5 × 1010 vs. 1.75 × 1010, p < 0.01) and was attributed to the difference in collection efficiency (22.61% vs. 10.15%, p < 0.01). There were no significant differences in occurrence of adverse events between HES and non-HES groups. CONCLUSION: Our results clearly indicate that sufficient number of granulocytes can be harvested by using MMW-HES in Spectra Optia apheresis system even after short interval between mobilization to harvest.

Increase in Cancer Patient Load during COVID-19 Pandemic: The Faridabad Experience.

Introduction Coronavirus disease 2019 (COVID-19) has affected oncology care differently across the world. We evaluated our experience of infusional chemotherapy during the active phase of ongoing pandemic. Methods Prospectively collected month wise data from January 2019 to November 2020 was compared between the 2 years. Results A total of 6,003 chemotherapy infusions were administered between January 1, 2019 and November 30, 2020 (2,548 in 11 months of 2019 and 3,455 in the same 11 months of 2020). Between May 1 and October 31, 2020, 2,337 chemotherapy infusions were administered to 570 patients all of whom were also tested for COVID-19 positivity, of which 65 (11.4%) were COVID-19 positive. The majority (63/65; 97%) could receive their chemotherapy infusions safely. Discussion Paradoxically, our hospital recorded an increase in the number of cancer patients receiving infusional chemotherapy in 2020, with a linear increase in the cancer case being treated (from 309 in June to 398 in November 2020). We believe that this was possible because cancer patients wanted treatment near their homes to avoid/minimize risk of exposure to COVID-19, cross state border travel restrictions was an additional roadblock, and our quality of service provided earned the trust of cancer patients.

A Prospective, Cross Sectional Study of PNH Clone in MDS Patients Using High Sensitivity Flowcytometry: A Single Center Experience.

Subclinical PNH can be present in patients with bone marrow failure like aplastic anemia and myelodysplastic syndrome (MDS). Such clone may have prognostic and therapeutic implications. In literature around 1-10% MDS cases have shown a PNH clone, however, data from India is relatively scarce. A high sensitivity PNH assay was employed using a single tube combination of FLAER, CD157, CD64, CD15 and CD45 antibodies in adult patients of MDS at presentation. A clone size of  > 0.01% was taken as significant. A total of 30 patients were included. PNH clone was present in 30% cases. Correlation done between PNH clone size and LDH values showed moderately positive correlation (r = 0.735, p = 0.001, r2 = 0.541). As per this study a LDH cut off of 247 IU is likely to predict a PNH clone (> 1%) with moderate sensitivity and specificity. High sensitivity PNH assay is able to detect small PNH clone. Calculating the cut-off of LDH to predict PNH positivity can help us judiciously prescribe this test in MDS patients in resource constrained settings.