Ravi Kumar Majhi

and 8 more

Background: Juvenile Myelomonocytic leukemia(JMML) is a rare and aggressive malignancy found in children. The genomic landscape of the JMML shows that the most common mutated genes found in the RAS. The risk stratification and the management of JMML patients is determined by the precise evaluation of the underlying genetic mutations. The co-occurring mutations along with the RAS pathway mutations may affect the outcomes of the disease. PTPN11 is the most common mutation found in JMML. In this study, we describe the outcomes of JMML patients who had an underlying PTPN11 mutation along with a mutation in the SETBP1 gene. Methods: DNA was extracted from the 43 cases with JMML after confirmation of the diagnosis. Whole exome sequencing was performed to find out the underlying germline and somatic mutations. Results: We found that about 35%(n=14) of patients harboured a PTPN11 somatic mutation. A coexisting SETBP1 mutation was found in 5 patients out of 14 cases. In our cohort of patients, we found that the SETBP1 was exclusively associated with PTPN11 and all 5 patients transformed into AML. The median time to AML transformation was 12 months (13 days-35 months). PTPN11 mutation with co-existing SETBP1 mutation showed a worse outcome compared to other PTPN11 positive patients and all 5 patients died within 3 months of transformation. Conclusion: In with PTPN11 positive JMML a coexisting SETBP1 mutation confers a poorer prognosis. These patients have a high risk of AML transformation. These patients should be candidate for consideration of early hematopoietic stem cell transplantation (HSCT).

Praneetha Mude

and 7 more

Background: Childhood cancer survivors are 8.8 times more likely to die of pulmonary causes when compared to general population: an aspect of concern. Pulmonary dysfunction is the third leading cause of non recurrence related cause of death among Hodgkin lymphoma survivors. Methods: A cross section study on Hodgkin lymphoma survivors in complete remission, who completed treatment within last 5 years was done. All children were subjected to detail history including drugs, past history of respiratory illnesses, physical and respiratory system examination followed by spirometry and three minute step test under supervision. Pulmonary dysfunction was determined as presence of obstructive, restrictive or mixed pattern on spirometry or abnormality in three minute step test. Subclinical pulmonary dysfunction was determined as patients who were clinically asymptomatic but had pulmonary dysfunction Results: A total of 60 children were enrolled (Mean age of 11.3 years and 53 were boys) Abnormal pulmonary function tests were documented in 11 (18.3%) of HL survivors at a median time of 2 years (IQR 1,3) from treatment completion. Restrictive pattern was documented in 10 (16.67%) and obstructive pattern in only one patient (1.67%), mostly mild in severity. Older age at start of chemotherapy and radiotherapy and past history of respiratory illness were found to be significantly associated with pulmonary dysfunction. Conclusion: Majority of Hodgkin lymphoma survivors had subclinical pulmonary dysfunction at median follow up of 2 years from treatment completion. Hodgkin lymphoma survivors require long term follow up for timely detection of pulmonary dysfunction and improve quality of life.

Satya Prakash

and 6 more

Background and aims: Oral mucositis (OM) is common and distressing toxicity in children on chemotherapy. There is limited number of safe and effective therapeutic options available for OM. Ketamine oral rinse has shown promising results in few studies in adults. This randomized, double-blind placebo-controlled trial aimed to test the efficacy of ketamine mouthwash in reducing chemotherapy-induced severe OM pain in children. Methods: Children aged 8-18 years with severe OM were randomized to a single dose of ketamine mouthwash (4 mg/ml solution; dose 1 mg/kg) or a placebo. A sample size of 44 patients was determined. Pain score (6-point faces scale) was noted at baseline and 15, 30, 45, 60, 120, 180, and 240 min. The outcome variables were a reduction in pain score, need for rescue medications, and adverse events. Results: The baseline characteristics were comparable in the two groups. The mean OM pain at 60 min decreased by 1.64 points (CI 1.13-2.14) in the ketamine group and 1.32 points (CI 0.76-1.87) in the placebo group (p=0.425), with a group difference of 0.32 points. Rescue pain medication (at 60 min) was required in 13.6% in the ketamine group and 18.2% in the placebo group (p=1.000). There were no significant adverse events observed. Conclusions: Among children on cancer chemotherapy with severe OM, ketamine mouthwash at a dose of 1 mg/kg did not significantly reduce OM pain. It did not decrease the need for rescue pain medications. Further research is warranted to test higher doses of ketamine for a clinically significant effect.