Senior Consultant, Paediatric Haematology            01/05/2019- 03/04/2023

Oncology Division. KK Women’s and

Children’s Hospital, Singapore.

Consultant, Paediatric Haematology                        25/03/2013- 30/04/2019

Oncology Division. KK Women’s and

Children’s Hospital, Singapore.

Consultant, Paediatric Haematology Oncology –     26/09/11- 16/03/13

Vision Care Hospital, Kolkata, India

Fellow, Paediatric Haematology Oncology        -      01/07/10- 30/06/11

British Columbia Children’s Hospital

Vancouver, Canada

Specialist Registrar, Paediatric Haematology.     -    29/03/10- 27/06/10

Bristol Royal Hospital for Children UK

Specialist Registrar, Paediatric Haematology     -    30/06/08- 04/10/2009

Bristol Royal Hospital for Children UK

Specialist Registrar, Haemtology. Derriford.       -    04/01/07-29/06/08

Hospital, Plymouth, UK                                          

Specialist Registrar Haematology. Royal Devon.  – 07/02/06- 03/01/07

And Exeter Hospital, UK  

Specialist Registrar Haematology, Royal Cornwall – 04/05/05- 06/02/06

Hospital, Truro, UK 

Staff Grade, Paediatric Oncology. Bristol Royal      - 01/01/04- 03/05/05

Hospital for Children, UK      

Bone Marrow Transplant Medical Co Ordinator.  – 26/03/03- 31/12/03

Bristol Royal Hospital for Children UK  

Fellow , Bone Marrow Transplant. Bristol Royal.   – 26/09/02- 25/03/03

Hospital for Children, UK  

Senior SHO, Paediatric Haematology Oncology.    -  01/03/02- 25/09/02

Yorkhill Hospital Glasgow UK   

Specialist Registrar, Paediatrics                               -   02/09/01-28/02/02

Torbay General Hospital, Torquay,UK  

Specialist Registar, Paediatrics                                 -   02/08/00- 01/09/01

Stoke Mandeville Hospital, Aylesbury UK  

Senior House Officer, Paediatric Oncology.           -   02/02/00- 01/08/00

St James University Hospital, Leeds UK  

Senior House Officer Paediatrics                              -  04/08/99- 01/02/00

Hinchingbrook Hospital Huntingdon, UK   

Senior House Officer, Neonatology                         -  04/02/99- 03/08/99

City Hospital Dudley, Birmingham UK  

Senior House Officer, Paediatrics.                            -  05/08/98- 02/02/99

Alexandra Hospital, Redditch, UK

Senior House Officer Paediatrics                              - 04/02/98- 04/08/98

Doncaster Royal Infirmary UK     

Clinical Attachment, Paediatrics                                -  05/01/98- 03/02/98

Doncaster Royal Infirmary UK 

Clinical Assistant, Paediatrics.                                    -  01/05/97- 31/10/97

Medical College Kolkata  

Post Graduate Trainee, MD Paediatrics.                  -  01/05/94- 31/04/97

Medical College Kolkata     

Clinical Attachment Paediatrics                                -  01/08/93- 30/04/94

Medical College Kolkata    

Senior House Officer Paediatrics                              -  01/08/92- 31/07/93

Medical College Kolkata     

Certification-

1. MD Paediatrics- 1997
2. Completion Certificate of Training (CCT in Haematology) - General Medical Council UK, January 2011.
3. Fellowship in Paediatric Haematology Oncology and Bone Marrow Transplantation- British Columbia Children’s Hospital, Vancouver, Canada, June 2011
4. Paediatric subspeciality certification- Singapore Medical Council 2015
5. Paediatric Haematology Oncology certification- Singapre Medical Council 2015

Professional Memberships-

      1. Fellow of Royal College of Pathology UK

      2. Fellow of Royal College of Paediatrics and Child Health UK

      3. Member of FOCIS ( Federation of Clinical Immunology Society)

      4. Member Singapore Society of Haematology

      5. Life Member Indian Academy of Paediatrics

Singhealth Silver Award- Health Quality and Service Award, Singapore- 2023

Singhealth Silver Award- Health Quality and Service Award, Singapore- 2017

Service from Heart Award- KK Women’s and Children’s Hospital, Singapore - 2014

Papers

• Tan CJ, Ng ZQ, Bhattacharyya R, Sultana R, Lee JH. Treatment and mortality of hemophagocytic lymphohistiocytosis in critically ill children: A systematic review and meta-analysis. Pediatric Blood & Cancer. 2023 Mar;70(3):e30122.

• Lam JC, Lee SY, Koh PL, Fong SZ, Abdul- Kadir NI, Lim CY, Zhang X, Bhattacharyya R, Soh SY, Chan MY, Tan AM. Clinical and health- related quality of life outcomes of transfusion-dependent thalassaemia patients in Singapore. Blood Cells, Molecules, and Diseases. 2021 May 1;88:102547
• Albert MH, Sirin M, Hoenig M, Hauck F, Schuetz C, Bhattacharyya R, Stepensky P, Jacoby E, Güngör T, Beier R, Schulz A. Salvage HLA-haploidentical hematopoietic stem cell transplantation with post-transplant cyclophosphamide for graft failure in non-malignant disorders. Bone Marrow Transplantation. 2021 May 9:1-1.
• Othman MY, Halepota HF, Le Linn Y, Lee YT, Chang KT, Ahamed SH, Lam JC, Bhattacharyya R, Tan AM, Loh AH. Gastrointestinal and oncologic outcomes of pediatric gastrointestinal lymphoma following upfront resection or biopsy of bowel masses. Pediatric surgery international. 2021 May 8:1-1

• Bhattacharyya R, Iyer P, Phua GC, Lee JH. The interplay between coagulation and inflammation pathways in COVID-19-associated respiratory failure: a narrative review. Pulmonary therapy. 2020 Aug 25:1-7.
• Cher WQ, Kalyanasundaram R, Chan MY, Ho CK, Iyer P, Bhattacharyya R. Profound hyperferritinemia may not be specific for the diagnosis of haemophagocytic lymphohistiocytosis (HLH) in Asian children. Pediatric Hematology Oncology Journal. 2020 Jul 6.
• Goh MC, Lam JC, Tan AM, Bhattacharyya R. Bleeder With a Clot: Thrombosis Following Treatment of Bleeding in a Child With Severe Hemophilia B. Journal of Pediatric Hematology/Oncology. 2020 Sep 3.
• Ong RY, Chan SW, Chew SJ, Liew WK, Thoon KC, Chong CY, Yung CF, Sng LH, Tan AM, Bhattacharyya R, Jamuar SS. Disseminated Bacillus-Calmette-Guérin infections and primary immunodeficiency disorders in Singapore: A single center 15-year retrospective review. International Journal of Infectious Diseases. 2020 Aug 1;97:117-25.
• Chan JC, Chong CY, Thoon KC, Tee NW, Maiwald M, Lam JC, Bhattacharya R, Chandran S, Yung CF, Tan NW. Invasive paediatric Elizabethkingia meningoseptica infections are best treated with a combination of piperacillin/tazobactam and trimethoprim/sulfamethoxazole or fluoroquinolone. Journal of Medical Microbiology. 2019 Aug 1;68(8):1167-72
• Das D, Lee MW, Dogra S, Das B, Lam J, Sengupta S, Bhattacharyya R. Novel homozygous ADAMTS13 mutation with neonatal presentation of congenital thrombotic thrombocytopaenic purpura in two Indian origin babies. Paediatric Haematology Oncology Journal. 2019 Mar 1;4(1):27-9

Letter

• Versluys B, Bhattacharyya R, Steward C, Oakhill A, Goulden N, Cornish J. Prophylaxis with defibrotide prevents venoocclusive disease in stem cell transplantation after gemtuzumab ozogamicin exposure.” Blood 2004 March1;103(5);1968
• Bhattacharyya R, Tan AM, Chan MY, Jamuar SS, Foo R, Iyer P : TCR ?β and CD19 depleted Haploidentical stem cell transplantation for Hoyeraal Hreidarsson Syndrome with RTEL1 mutation,.  Bone Marrow Transplantation (2016) 51, 753-754.

Case Report

• Mitra S, Bhattacharyya R: Haemophagocytic syndrome in severe dengue fever: a rare presentation Indian J Hematol Blood Transfus, (Sept 2014) 30 (Suppl 1) S97-S100.
• Khemka, P. Bhattacharyya, R., Ray, S., and Mukherjee, M. (2016) Boy with silvery grey hair and immunodeficiency. J Paediatr Child Health, 52: 467–468. doi: 10.1111/jpc.12925.
• Lee EY, Lian WQ, Iyer P, Bhattacharyya R. An Unusual Cause of Fever and Rash in a Child With Severe Aplastic Anemia. Journal of Pediatric Hematology/Oncology. 2017 May 29.
• Susanto TA, Bhattacharyya R. X-linked Sideroblastic Anemia in a Malay Boy With ALAS2 S568G Mutation. Journal of Pediatric Hematology/oncology. 2017 Jul 1;39(5):408-9.
• Iyer P, Seng MS, Vijayakumari K, Bhattacharyya R. CD3 depleted haploidentical stem cell transplant in paediatric acute undifferentiated leukaemia. Pediatric Hematology Oncology Journal. 2017 Mar 1;2(1):12-3.
• Tan GH, Bhattacharyya R. An apparent case of non-accidental injury. Archives of Disease in Childhood-Education and Practice. 2017 Aug 28:edpract-2017.
• Kam KQ, Soh SY, Bhattacharyya R. Dengue-associated Hemophagocytic Lymphohistiocytosis: A Rare Complication of a Common Infection in Singapore. Journal of pediatric hematology/oncology. 2017 Dec.
• Lee D, Jeyanthi C, Bhattacharyya R, Lam JC. Multiple fractures of different ages. Archives of Disease in Childhood-Education and Practice. 2020 Apr 1;105(2):99-106

     Thesis

• “Studies on acute leukaemias in children with special reference to acquired secondary infections” University of Calcutta, October 1996.

RECENT INVITED SPEAKER TALKS

1. “Reducing toxicity of stem cell transplant  in acute lymphoblastic leukaemia in children”-  19^th Annual conference of MASPHO ( Malaysian society of paediatric haematology oncology) on 10^th August 2022.

2. “Haematopoietic stem cell transplant for non malignant haematological conditions” - 19^th Annual conference of MASPHO ( Malaysian society of paediatric haematology oncology) on 10^th August 2022
3. “Issues related to apheresis in paediatric patients/donors”- 27^TH Congress of Asia Pacific Blood and Marrow Transplant ( APBMT) in Kochi India on 7^th October 2022.
4.  ‘Viral infections in haematopoietic stem cell transplantation”- 25^th Annual paediatric haematology conference ( PHOCON) in New Delhi, India on 18^th November 2022