Ptolemy D. W. Banks

National Hospital for Neurology and Neurosurgery

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Anand Pandit

National Hospital for Neurology and Neurosurgery

Ahmed K. Toma

University College London

Mohammad Alradhawi

University College London

Yousif Aldabbagh

University College London

Lewis Thorne

National Hospital for Neurology and Neurosurgery

Laurence Watkins

National Hospital for Neurology and Neurosurgery

Simon D Thompson

National Hospital for Neurology and Neurosurgery

Asif Hasan

St George's, University of London

Gerda Reischer

National Hospital for Neurology and Neurosurgery

Nicole K. Y. Tang

University of Warwick

Cooperative Institutions

University College London

National Hospital for Neurology and Neurosurgery

University of Glasgow

Queen Elizabeth University Hospital

University College Hospital

University of Dundee

University College London Hospitals NHS Foundation Trust

University of Cambridge

Universidade de São Paulo

Charles University

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The effect of opioid therapy on sleep quality in patients with chronic non-malignant pain: A systematic review and exploratory meta-analysis

Sleep Medicine Reviews (2019)

Nicole K. Y. Tang Maria T. Stella Ptolemy D. W. Banks Harbinder Sandhu Chantal Berna

Exploratory analysis

Sleep

10.1016/j.smrv.2019.03.005

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Citations (25)

Happy-ICP: single-centre cohort of 184 telemetric intracranial pressure monitors

Brain and Spine (2021)

Ptolemy D. W. Banks Anand Pandit Ahmed K. Toma Simon D Thompson N. Dubé-Fuller

10.1016/j.bas.2021.100744

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Citations (3)

The Impact of Intracranial Pressure Telesensors: An Observational Propensity-Matched Control Analysis of Service Demand and Costs

Neurosurgery (2024)

Anand Pandit Muhammad Abdul Kamal Gerda Reischer Yousif Aldabbagh Mohammad Alradhawi

BACKGROUND AND OBJECTIVES: Implantable telemetric intracranial pressure (ICP) sensors (telesensors) enable routine, noninvasive ICP feedback, aiding clinical decision-making and attribution of pressure-related symptoms in patients with cerebrospinal fluid shunt systems. Here, we aim to explore the impact of these devices on service demand and costs in patients with adult hydrocephalus. METHODS: We performed an observational propensity-matched control study, comparing patients who had an MScio/Sensor Reservoir (Christoph Miethke, GmbH & Co) against those with a nontelemetric reservoir inserted between March 2016 and March 2018. Patients were matched on demographics, diagnosis, shunt-type, and revision status. Service usage was recorded with frequencies of neurosurgical admissions, outpatient clinics, scans, and further surgical procedures in the 2 years before and after shunt insertion. RESULTS: In total, 136 patients, 73 telesensors, and 63 controls were included in this study (48 matched pairs). Telesensor use led to a significant decrease in neurosurgical inpatient admissions, radiographic encounters, and procedures including ICP monitoring. After multivariate adjustment, the mean cumulative saving after 2 years was £5236 ($6338) in telesensor patients (£5498 on matched pair analysis). On break-even analysis, cost-savings were likely to be achieved within 8 months of clinical use, postimplantation. Telesensor patients also experienced a significant reduction in imaging-associated radiation (4 mSv) over 2 years. CONCLUSION: The findings of this exploratory study reveal that telesensor implantation is associated with reduced service demand and provides net financial savings from an institutional perspective. Moreover, telesensor patients required fewer appointments, invasive procedures, and had less radiation exposure, indicating an improvement in both their experience and safety.

10.1227/neu.0000000000002893

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Citations (2)

The impact of intracranial pressure telesensors: an observational propensity matched-control analysis of service demand and costs

medRxiv (Cold Spring Harbor Laboratory) (2023)

Anand Pandit Muhammad A Kamal Gerda Reischer Yousif Aldabbagh Mohammad Alradhawi

Background: Implantable telemetric intracranial pressure sensors (telesensors) enable routine, non-invasive ICP feedback, aiding clinical decision-making and attribution of pressure-related symptoms in patients with CSF shunt systems. Here, we aim to explore the impact of these devices on service demand and costs in patients with adult hydrocephalus. Methods: We performed an observational propensity matched control study, comparing all patients who had an MScio/Sensor Reservoir (Christoph Mietke, GmbH & Co) against those with a non-telemetric reservoir between March 2016 and March 2018. Patients were matched based on demographics, diagnosis, shunt-type and revision status. Neurosurgical service usage was recorded with frequencies of neurosurgical admissions, outpatient clinics, scans and further surgical procedures in the two years prior and after shunt insertion. Results: 136 patients: 73 telesensor and 63 controls were included in this study (48 matched pairs). Telesensor use led to a significant decrease in neurosurgical inpatient admissions, radiographic encounters and further procedures such as intracranial pressure monitoring. After multivariate adjustment, the mean cumulative saving after two years was 5236 GBP (6338 USD) in telesensor patients (5498 GBP on matched pair analysis). On break-even analysis, cost-savings were likely to be achieved within 8 months of clinical use, post-implantation. Telesensor patients also experienced a significant reduction in imaging-associated radiation (4 mSv) over two years. Conclusions: The findings of this exploratory study reveal that telesensor implantation is associated with reduced service demand and provides net financial savings from an institutional perspective. Moreover, telesensor patients required fewer appointments, invasive procedures, and had less radiation exposure, indicating an improvement in both their experience and safety.

Demographics

10.1101/2023.08.01.23293079

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Civilian attachments for defence services trainees

British Journal of Oral and Maxillofacial Surgery (1993)

Ptolemy D. W. Banks

10.1016/0266-4356(93)90179-z

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The utility of MRI radiological biomarkers in determining intracranial pressure

Scientific Reports (2024)

Anand Pandit Musa China Raunak Jain Arif Hanafi Bin Jalal Maria Jelen

10.1038/s41598-024-73750-9

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The impact of telesensors on neurosurgical service demand: a cohort cost-effectiveness analysis from institutional and patient perspectives

Brain and Spine (2022)

Ptolemy D. W. Banks Anand Pandit Mohammad Alradhawi Yousif Aldabbagh Faith Lee

10.1016/j.bas.2022.101344

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The utility of MRI radiological biomarkers in determining intracranial pressure

medRxiv (Cold Spring Harbor Laboratory) (2023)

Anand Pandit Musa China Raunak Jain Arif Hanafi Bin Jalal Shivani.B. Joshi

Abstract Background Intracranial pressure (ICP) is a physiological parameter that conventionally requires invasive monitoring for accurate measurement. Utilising multivariate predictive models, we sought to evaluate the utility of non-invasive, accessible MRI biomarkers in predicting ICP and their reversibility following cerebrospinal fluid (CSF) diversion. Methods The retrospective study included 325 adult patients with suspected CSF dynamic disorders who underwent brain MRI scans within three months of elective 24-hour ICP monitoring. Five MRI biomarkers were assessed: Yuh sella grade, optic nerve vertical tortuosity (VT), optic nerve sheath distension (ONSD), posterior globe flattening (PGF) and optic disc protrusion (ODP). The association between MRI biomarkers and 24-hour ICP was examined and reversibility of each following CSF diversion was assessed using uni- and multivariate techniques. Results All five biomarkers were significantly associated with median 24-hour ICP (p<0.0001). Using a pair-wise approach, the presence of each abnormal biomarker was significantly associated with higher median 24- hour ICP (p<0.0001). On multivariate analysis, ICP was significantly and positively associated with Yuh grade (p<0.0001), VT (p<0.0001) and ODP (p=0.003), after accounting for age and suspected diagnosis. Bayesian multiple linear regression predicted 24-hour median ICP with a mean absolute error of 2.71 mmHg. Following CSF diversion, we found Yuh grade to show significant pairwise reversibility (p<0.001). Conclusions ICP was predicted with clinically useful precision utilising a compact Bayesian model, offering an easily interpretable tool that utilised non-invasive imaging data. MRI biomarkers are anticipated to play a more significant role in the screening, triaging, and referral of patients with suspected CSF dynamic disorders. Key messages Brain MRI biomarkers have been found to be correlated with cerebrospinal fluid (CSF) pressures. However, previous studies have not examined these imaging features with continuous intracranial pressure (ICP) measurements, or in patient cohorts with sizable numbers or different CSF dynamic disorders than idiopathic intracranial hypertension. In this retrospective cohort study, patients with abnormal neuroradiological markers (optic nerve sheath diameter, pituitary: sella grade, optic nerve vertical tortuosity, posterior globe flattening or optic disc protrusion) had significantly higher median 24-hour ICP readings. After adjusting for age and diagnosis, Yuh sella grade, vertical tortuosity and optic disc protrusion were significantly associated with ICP. Our multiple linear regression model was able to predict 24-hour median ICP using routine MR-imaging in those with chronic CSF disorders. Pituitary deformation resolved following CSF diversion, suggesting reversibility of certain radiological biomarkers. Brain MRIs are widely accessible and non-invasive, and are commonly used in elective patients with suspected raised ICP. Our study provides a tool incorporating simple clinico-radiological parameters for the screening, triaging, and referral of patients with suspected abnormal ICP, and our results have important implications for the diagnostic routine of patients with suspected intracranial hypertension.

10.1101/2023.04.26.23289164

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Citations (1)

Tenth-anniversary Glasgow Neuro Society 2022 conference proceedings

Surgical Neurology International (2023)

Hassan Ismahel Eilidh Elizabeth Stewart Middleton Vivienne Eloise Evans Attika Chaudhary Devansh Shah

Legacy is not born of wealth but from wealth of accomplishment.is principle epitomizes Glasgow Neuro as we commemorate a decade of creative and inspiring conferences aimed at sparking the minds of junior researchers.As recipients of the University of Glasgow Academic Society of the Year Award, I write with a sense of profound achievement as the President of the Glasgow Neuro Society for 2022-23, extending an invitation for you to immerse yourself in our 10 th -anniversary conference featuring world-renowned speakers, immersive workshops, and stimulating research.The ethos of Glasgow stands firmly in our commitment to "raise the bar."Despite our position as a student society, our relentless ambition propelled us into becoming one of the largest neuro societies in the UK for junior members of the medical profession.

Ethos

10.25259/sni_649_2023

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Citations (1)

Judgement of sleep quality of the previous night changes as the day unfolds: A prospective experience sampling study

Journal of Sleep Research (2022)

Nicole K. Y. Tang Ptolemy D. W. Banks Adam N. Sanborn

Summary How we form judgements of sleep quality is poorly understood. Emerging literature suggests that people infer their sleep quality based on multiple sources of accessible information, raising the possibility that sleep quality judgement may evolve as new relevant information becomes available. This study investigated whether people's rating of sleep quality of the night before changes throughout the following day, and what post‐sleep factors are associated with the changes. A prospective experience sampling study of 119 healthy young adults, who completed eight short online surveys interspaced 2 hr apart from 08:00 hours to 22:00 hours. Each survey asked the participants to report total sleep time and sleep quality of the night before, and to provide ratings of current mood, physical and social activity, and pain/discomfort. A memory test was added to the final survey of the day to measure the participants' recall of their first survey responses to sleep quality, as well as total sleep time and mood. The absolute majority (91.1%) of the participants had one or more change in their sleep quality rating across the eight surveys. A similar percentage of change was found for mood rating (100%) but not total sleep time report (20.5%). Memory test in the final survey revealed that the within‐person variations in sleep quality rating were not simply memory errors. Instead, positive physical activity post‐sleep predicted increases in sleep quality rating. Therefore, judgement of sleep quality of the night before changes as the day unfolds, and post‐sleep information can be used by people to infer their sleep quality.

Sleep

Experience sampling method

Judgement

10.1111/jsr.13764

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Citations (8)