Petya Bogdanova-Mihaylova

Dr. Petya Bogdanova-Mihaylova

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 August 2020 in The Cerebellum
Verified
Journal Article
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PBPetya Bogdanova-Mihaylova
Petya Bogdanova-Mihaylova
JHJosephine Hebert
Josephine Hebert
SMSharon Moran
Sharon Moran
MMMichael Murphy
Michael Murphy
DWDeirdre Ward
Deirdre Ward
SMSinéad M. Murphy
Sinéad M. Murphy

26 September 2017 in Orphanet Journal of Rare Diseases
Verified
Journal Article
Open access
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MLMeher Lad
Meher Lad
MPMichael H. Parkinson
Michael H. Parkinson
MRMyriam Rai
Myriam Rai
MPMassimo Pandolfo
Massimo Pandolfo
PBPetya Bogdanova-Mihaylova
Petya Bogdanova-Mihaylova
PGPaola Giunti
Paola Giunti
Pelvic symptoms are distressing symptoms experienced by patients with Friedreich’s Ataxia (FRDA). The aim of this study was to describe the prevalence of lower urinary tract symptoms (LUTS), bowel and sexual symptoms in FRDA. Questionnaire scores measuring LUTS, bowel and sexual symptoms were analysed with descriptive statistics as a cohort and as subgroups (Early/Late-onset and Early/Late-stage FRDA) They were also correlated with validated measures of disease severity including those of ataxia severity, non-ataxic symptoms and activities of daily living. 80% (n = 46/56) of patients reported LUTS, 64% (n = 38/59) reported bowel symptoms and 83% (n = 30/36) reported sexual symptoms. Urinary and bowel or sexual symptoms were significantly likely to co-exist among patients. Late-onset FRDA patients were also more likely to report LUTS than early-onset ones. Patients with a longer disease duration reported higher LUTS scores and poorer quality of life scores related to urinary symptoms. A high proportion of FRDA have symptoms suggestive of LUTS, bowel and sexual dysfunction. This is more marked with greater disease duration and later disease onset. These symptoms need to be addressed by clinicians as they can have a detrimental effect on patients.

15 September 2019 in Journal of the Peripheral Nervous System
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Journal Article
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PBPetya Bogdanova-Mihaylova
Petya Bogdanova-Mihaylova
MAMichael D. Alexander
Michael D. Alexander
RMRaymond P. Murphy
Raymond P. Murphy
HCHongying Chen
Hongying Chen
DHDaniel G. Healy
Daniel G. Healy
SMSinéad M. Murphy
Sinéad M. Murphy

5 September 2017 in Journal of the Peripheral Nervous System
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Journal Article
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PBPetya Bogdanova-Mihaylova
Petya Bogdanova-Mihaylova
MAMichael D. Alexander
Michael D. Alexander
RMRaymond P. J. Murphy
Raymond P. J. Murphy
SMSinéad M. Murphy
Sinéad M. Murphy

8 December 2021 in Tomography
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Journal Article
Open access
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PBPetya Bogdanova-Mihaylova
Petya Bogdanova-Mihaylova
HPHelena Maria Plapp
Helena Maria Plapp
HCHongying Chen
Hongying Chen
AEAnne Early
Anne Early
LCLorraine Cassidy
Lorraine Cassidy
SMSinead Murphy
Sinead Murphy
Ocular abnormalities occur frequently in Friedreich’s ataxia (FRDA), although visual symptoms are not always reported. We evaluated a cohort of patients with FRDA to characterise the clinical phenotype and optic nerve findings as detected with optical coherence tomography (OCT). A total of 48 patients from 42 unrelated families were recruited. Mean age at onset was 13.8 years (range 4–40), mean disease duration 19.5 years (range 5–43), mean disease severity as quantified with the Scale for the Assessment and Rating of Ataxia 22/40 (range 4.5–38). All patients displayed variable ataxia and two-thirds had ocular abnormalities. Statistically significant thinning of average retinal nerve fibre layer (RNFL) and thinning in all but the temporal quadrant compared to controls was demonstrated on OCT. Significant RNFL and macular thinning was documented over time in 20 individuals. Disease severity and visual acuity were correlated with RNFL and macular thickness, but no association was found with disease duration. Our results highlight that FDRA is associated with subclinical optic neuropathy. This is the largest longitudinal study of OCT findings in FRDA to date, demonstrating progressive RNFL thickness decline, suggesting that RNFL thickness as measured by OCT has the potential to become a quantifiable biomarker for the evaluation of disease progression in FRDA.

18 August 2020 in Journal of the Peripheral Nervous System
Verified
Journal Article
Closed access
PDF file
DVDavid Vaughan
David Vaughan
PBPetya Bogdanova-Mihaylova
Petya Bogdanova-Mihaylova
DCDaniel J. Costello
Daniel J. Costello
BSBrian J. Sweeney
Brian J. Sweeney
BMBrian McNamara
Brian McNamara
SMSinéad M. Murphy
Sinéad M. Murphy