Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Elevated FVIII levels in hereditary hemorrhagic telangiectasia : Implications for clinical management

Jørgensen, Ole Jakob ; Steineger, Johan Edvard ; Hillarp, Andreas LU ; Pareli Wåland, Erik ; Holme, Pål André ; Heimdal, Ketil and Dheyauldeen, Sinan (2023) In Laryngoscope Investigative Otolaryngology
Abstract

Objectives: The objective of this study was twofold: to determine the prevalence of arterial and venous thromboembolic events in the Norwegian Hereditary Hemorrhagic Telangiectasia (HHT) population, and to explore potential factors linked to such events, with particular emphasis on FVIII. Methods: Patients with an HHT diagnosis attending the Otorhinolaryngology Department at Oslo University Hospital—Rikshospitalet were included consecutively between April 2021 and November 2022. We recorded the participants' medical history with an emphasis on thromboembolic events. Measurements of blood constituents, including FVIII, FIX, vWF, hemoglobin, iron, ferritin, and CRP were performed. Results: One hundred and thirty-four patients were... (More)

Objectives: The objective of this study was twofold: to determine the prevalence of arterial and venous thromboembolic events in the Norwegian Hereditary Hemorrhagic Telangiectasia (HHT) population, and to explore potential factors linked to such events, with particular emphasis on FVIII. Methods: Patients with an HHT diagnosis attending the Otorhinolaryngology Department at Oslo University Hospital—Rikshospitalet were included consecutively between April 2021 and November 2022. We recorded the participants' medical history with an emphasis on thromboembolic events. Measurements of blood constituents, including FVIII, FIX, vWF, hemoglobin, iron, ferritin, and CRP were performed. Results: One hundred and thirty-four patients were included in the study. The total prevalence of thromboembolic events among the participants was 23.1%. FVIII levels were high (>150 IU/dL) in the majority of HHT patients (n = 84) (68.3%) and were significantly associated with thromboembolic events (p <.001), as was age. Of the patients with high FVIII levels, 28 (33%) had experienced a thromboembolic event. Furthermore, FVIII levels were measured consecutively in 51 patients and were found to fluctuate above or below 150 IU/dL in 25% of these cases. Conclusion: Thromboembolic events are highly prevalent in the Norwegian HHT population and are significantly associated with FVIII levels. FVIII levels can fluctuate, and measurements should be repeated in HHT patients to assess the risk of thromboembolic events. Level of Evidence: 4.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
FVIII, hereditary hemorrhagic telangiectasia, HHT, Osler, thrombosis
in
Laryngoscope Investigative Otolaryngology
publisher
Wiley
external identifiers
  • pmid:38362186
  • scopus:85179988762
ISSN
2378-8038
DOI
10.1002/lio2.1196
language
English
LU publication?
yes
id
61e332f5-5b61-4707-9259-511a9b266a33
date added to LUP
2024-01-10 11:45:28
date last changed
2024-04-25 07:45:01
@article{61e332f5-5b61-4707-9259-511a9b266a33,
  abstract     = {{<p>Objectives: The objective of this study was twofold: to determine the prevalence of arterial and venous thromboembolic events in the Norwegian Hereditary Hemorrhagic Telangiectasia (HHT) population, and to explore potential factors linked to such events, with particular emphasis on FVIII. Methods: Patients with an HHT diagnosis attending the Otorhinolaryngology Department at Oslo University Hospital—Rikshospitalet were included consecutively between April 2021 and November 2022. We recorded the participants' medical history with an emphasis on thromboembolic events. Measurements of blood constituents, including FVIII, FIX, vWF, hemoglobin, iron, ferritin, and CRP were performed. Results: One hundred and thirty-four patients were included in the study. The total prevalence of thromboembolic events among the participants was 23.1%. FVIII levels were high (&gt;150 IU/dL) in the majority of HHT patients (n = 84) (68.3%) and were significantly associated with thromboembolic events (p &lt;.001), as was age. Of the patients with high FVIII levels, 28 (33%) had experienced a thromboembolic event. Furthermore, FVIII levels were measured consecutively in 51 patients and were found to fluctuate above or below 150 IU/dL in 25% of these cases. Conclusion: Thromboembolic events are highly prevalent in the Norwegian HHT population and are significantly associated with FVIII levels. FVIII levels can fluctuate, and measurements should be repeated in HHT patients to assess the risk of thromboembolic events. Level of Evidence: 4.</p>}},
  author       = {{Jørgensen, Ole Jakob and Steineger, Johan Edvard and Hillarp, Andreas and Pareli Wåland, Erik and Holme, Pål André and Heimdal, Ketil and Dheyauldeen, Sinan}},
  issn         = {{2378-8038}},
  keywords     = {{FVIII; hereditary hemorrhagic telangiectasia; HHT; Osler; thrombosis}},
  language     = {{eng}},
  publisher    = {{Wiley}},
  series       = {{Laryngoscope Investigative Otolaryngology}},
  title        = {{Elevated FVIII levels in hereditary hemorrhagic telangiectasia : Implications for clinical management}},
  url          = {{http://dx.doi.org/10.1002/lio2.1196}},
  doi          = {{10.1002/lio2.1196}},
  year         = {{2023}},
}