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13
result(s) for
"Ajithkumar, Thankamma"
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Non-Hodgkin lymphoma
by
Bowzyk Al-Naeeb, Anna
,
Ajithkumar, Thankamma
,
Behan, Sarah
in
Antineoplastic Combined Chemotherapy Protocols
,
Biopsy
,
Blood tests
2018
Journal Article
Anticancer chemotherapy in teenagers and young adults: managing long term side effects
by
Ajithkumar, Thankamma V
,
Reinius, Marika AV
,
Hatcher, Helen M
in
Adaptation, Psychological
,
Adolescent
,
Adult
2016
Cancer is the leading cause of disease related death in teenagers and young adults (TYAs) in Western countries.1 2 In the UK, cancer in TYAs accounts for 9% and 15% of all male and female deaths respectively, and its incidence has risen by 19% since the mid-1990s, leading to 2300 new cases a year between 2011 and 2013.1 In Japan it accounted for nearly 7000 deaths between 2000 and 2006.3 TYA cancer survivors are likely to live for many decades but are at risk of late effects of their treatment. This article provides information for generalists on late effects of anticancer chemotherapy (see infographic and supplementary table A) that may affect quality of life. Radiotherapy related effects are not discussed but are summarised elsewhere.4 References
Journal Article
Prevention of radiotherapy-induced neurocognitive dysfunction in survivors of paediatric brain tumours: the potential role of modern imaging and radiotherapy techniques
by
Ajithkumar, Thankamma
,
Price, Stephen
,
Horan, Gail
in
Attention Deficit Hyperactivity Disorder
,
Brain cancer
,
Brain Neoplasms - radiotherapy
2017
Neurocognitive dysfunction is the leading cause of reduced quality of life in long-term survivors of paediatric brain tumours. Radiotherapy is one of the main contributors to neurocognitive sequelae. Current approaches for prevention and reduction of neurocognitive dysfunction include avoidance of radiotherapy in young children and reduction of the radiotherapy dose and volume of brain irradiated. Substantial advances have been made in brain imaging, especially with functional imaging and fibre tracking with the use of diffusion tensor imaging. Radiotherapy techniques for photon therapy have also evolved, with widespread use of techniques such as image-guided radiotherapy, volumetric modulated arc therapy, helical tomotherapy, and adaptive radiotherapy. The number of proton beam and heavy ion therapy facilities is increasing worldwide and there is great enthusiasm for clinical use of advanced MRI-guided radiotherapy systems. Here, we review the potential role of modern imaging and innovative radiotherapy techniques in minimisation of neurocognitive sequelae in children with brain tumours, and discuss various strategies to integrate these advances to drive further research.
Journal Article
Evolving treatment options for melanoma brain metastases
by
Fife, Kate
,
Ajithkumar, Thankamma
,
Parkinson, Christine
in
Animals
,
Brain Neoplasms - mortality
,
Brain Neoplasms - secondary
2015
Melanoma is a leading cause of lost productivity due to premature cancer mortality. Melanoma frequently spreads to the brain and is associated with rapid deterioration in quality and quantity of life. Until now, treatment options have been restricted to surgery and radiotherapy, although neither modality has been well studied in clinical trials. However, the new immune checkpoint inhibitors and molecularly targeted agents that have been introduced for treatment of metastatic melanoma are active against brain metastases and offer new opportunities to improve disease outcomes. New challenges arise, including how to integrate or sequence multiple treatment modalities, and current practice varies widely. In this Review, we summarise evidence for the treatment of melanoma brain metastases, and discuss the rationale and evidence for combination modalities, highlighting areas for future research.
Journal Article
Imaging response assessment for CNS germ cell tumours: consensus recommendations from the European Society for Paediatric Oncology Brain Tumour Group and North American Children's Oncology Group
by
MacDonald, Shannon M
,
Alapetite, Claire
,
Ajithkumar, Thankamma
in
Biopsy
,
Brain cancer
,
Brain Neoplasms - diagnostic imaging
2022
Homogeneous and common objective disease assessments and standardised response criteria are important for better international clinical trials for CNS germ cell tumours. Currently, European protocols differ from those of North America (the USA and Canada) in terms of criteria to assess radiological disease response. An international working group of the European Society for Paediatric Oncology Brain Tumour Group and North American Children's Oncology Group was therefore established to review existing literature and current practices, identify major challenges regarding imaging assessment, and develop consensus recommendations for imaging response assessment for patients with CNS germ cell tumours. New clinical imaging standards were defined for the most common sites of CNS germ cell tumour and for the definition of locoregional extension. These new standards will allow the evaluation of response to therapy in patients with CNS germ cell tumours to be more consistent, and facilitate direct comparison of treatment outcomes across international studies.
Journal Article
Endoscopic ultrasound-guided neurolysis in advanced pancreatic cancer: current status
2022
Pancreatic cancer has a very poor prognosis with patients often presenting with locally advanced, inoperable or metastatic disease. A significant proportion of patients have visceral pain due to perineural infiltration or coeliac plexus involvement by the tumour. This pain is difficult to control and may become refractory to conventional pain management. Therefore, coeliac plexus neurolysis (CPN) has been proposed to ablate the neuronal transmission pathway of pain permanently. CPN is recommended for those who have uncontrolled pain, are experiencing unacceptable opioid adverse effects or are receiving escalating doses of analgesics. It is not known whether CPN performed at diagnosis as the first-line treatment (‘early’) would impact short-term and long-term pain control and quality of life. NICE has recommended (2018) a randomised trial comparing early endoscopic ultrasound-guided coeliac plexus neurolysis (EUS-CPN) with on-demand EUS-CPN in pancreatic cancer. In this context, we will review the current evidence on its clinical benefits.
Journal Article
Symptom interval and treatment burden for patients with malignant central nervous system germ cell tumours
2020
ObjectivePatients with central nervous system germ cell tumours (CNS-GCTs) commonly initially present to primary care or general paediatricians. Prolonged symptom intervals (SI) are frequently seen in CNS-GCTs and have been associated with inferior outcomes in other brain tumours. This study reviewed the clinical presentation of CNS-GCTs and examined the effect of prolonged SI.Design/Setting/Patients/OutcomesInternational multicentre 10-year retrospective study (2002–2011 inclusive), across six international paediatric oncology treatment centres. All newly diagnosed patients with CNS-GCT were included. Main outcome measure was time interval from first symptom to diagnosis.ResultsThe study cohort included 86 (58 males:28 female) patients (59 ‘germinoma’ and 27 ‘non-germinomatous’ GCTs), with tumours being pineal (n=33), suprasellar (n=25), bifocal (pineal+suprasellar; n=24) and ‘other’ site (n=4), of which 16 (19%) were metastatic. Median age at diagnosis was 14 years (0–23 years). The time to diagnosis from first symptom (SI) was 0–69 months (median 3 months, mean 9 months). A prolonged SI (>6 months) was observed in 28/86 patients (33%) and significantly associated with metastatic disease (11/28 (39%) vs 5/58 (9%); p=0.002)) at diagnosis, but not overall survival. With prolonged SI, endocrine symptoms, particularly diabetes insipidus, were more common (21/28 (75%) vs 14/58 (24%) patients; p<0.002), but raised intracranial pressure (RICP) was less frequent (4/28 (14%) vs 43/58 (74%) patients; p<0.001)) at first symptom.ConclusionsOne-third of patients with CNS-GCT have >6 months of symptoms prior to diagnosis. Delayed diagnosis is associated with metastatic disease. Early symptom recognition, particularly related to visual and hormonal disturbances in the absence of RICP, may improve timely diagnosis, reduce metastatic disease frequency and consequently reduce treatment burden and late effects.
Journal Article
Management of vertebral radiotherapy dose in paediatric patients with cancer: consensus recommendations from the SIOPE radiotherapy working group
2019
Inhomogeneities in radiotherapy dose distributions covering the vertebrae in children can produce long-term spinal problems, including kyphosis, lordosis, scoliosis, and hypoplasia. In the published literature, many often interrelated variables have been reported to affect the extent of potential radiotherapy damage to the spine. Articles published in the 2D and 3D radiotherapy era instructed radiation oncologists to avoid dose inhomogeneity over growing vertebrae. However, in the present era of highly conformal radiotherapy, steep dose gradients over at-risk structures can be generated and thus less harm is caused to patients. In this report, paediatric radiation oncologists from leading centres in 11 European countries have produced recommendations on how to approach dose coverage for target volumes that are adjacent to vertebrae to minimise the risk of long-term spinal problems. Based on available information, it is advised that homogeneous vertebral radiotherapy doses should be delivered in children who have not yet finished the pubertal growth spurt. If dose fall-off within vertebrae cannot be avoided, acceptable dose gradients for different age groups are detailed here. Vertebral delineation should include all primary ossification centres and growth plates, and therefore include at least the vertebral body and arch. For partial spinal radiotherapy, the number of irradiated vertebrae should be restricted as much as achievable, particularly at the thoracic level in young children (<6 years old). There is a need for multicentre research on vertebral radiotherapy dose distributions for children, but until more valid data become available, these recommendations can provide a basis for daily practice for radiation oncologists who have patients that require vertebral radiotherapy.
Journal Article
Management of solid tumours in organ-transplant recipients
by
Ajithkumar, Thankamma V
,
Butler, Andrew
,
Hatcher, Helen M
in
Breast cancer
,
Colorectal cancer
,
Hematology, Oncology and Palliative Medicine
2007
Malignancy is a well-recognised complication of transplantation and can occur de novo, as a recurrence of a pre-existing malignancy, or from transmission of malignancy from the donor. Common de-novo malignancies are those of the skin and the lymphoreticular system. Various solid-organ cancers have also been reported in transplant recipients and each poses a unique management challenge in view of the unusual setting. We review solid-organ cancers in transplant recipients and their management, including surveillance and prevention.
Journal Article
Management of uncommon chemotherapy-induced emergencies
by
Morgan, Carys
,
Tillett, Tania
,
Ajithkumar, Thankamma
in
Antineoplastic Agents - adverse effects
,
Cardiac arrhythmia
,
Chemotherapy
2011
Chemotherapy can induce various clinical emergencies. Prompt recognition and management of these adverse events are important for avoiding further morbidity and mortality. Some events such as hypersensitivity and extravasation are quite common, whereas emergencies such as neutropenic typhlitis, pancreatitis, and acute haemolysis are very rare. Little information exists on the management of rare chemotherapy-induced emergencies that affect fewer than 1% of patients. We review these uncommon chemotherapy-induced life-threatening emergencies, their pathogenesis and management, and recommendations for rechallenge with the offending chemotherapy.
Journal Article