The authors reply

doi:10.1097/CCM.0000000000006658

. 2025 Jun 1;53(6):e1328-e1330.

doi: 10.1097/CCM.0000000000006658. Epub 2025 Jun 3.

The authors reply

Mohammad I H Hirzallah^{1

2}, Lochner Piergiorgio³, Christos Krogias⁴, Chiara Robba⁵, Jurgita Valaikiene⁶, Aarti Sarwal⁷, Felix Schlachetzki⁸, Jakob Pansell^{9

10}

Affiliations

¹ Departments of Neurology and Neurosurgery, Baylor College of Medicine, Houston, TX.
² Center for Space Medicine, Baylor College of Medicine, Houston, TX.
³ Department of Neurology, Saarland University Medical Center, Homburg, Germany.
⁴ Department of Neurology, Evangelisches Krankenhaus Herne, Academic Teaching Hospital of the Ruhr University Bochum, Herne, Germany.
⁵ IRCCS Policlinico San Martino, Genova, Italy.
⁶ Clinic of Neurology and Neurosurgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania.
⁷ Department of Neurology, Virginia Commonwealth University School of Medicine, Richmond, VA.
⁸ Department of Neurology, University of Regensburg, Center for Vascular Neurology and Intensive Care, Regensburg, Germany.
⁹ Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.
¹⁰ Department of Anesthesia and Intensive Care, Karolinska University Hospital, Stockholm, Sweden.

PMID: 40459387
DOI: 10.1097/CCM.0000000000006658

The authors reply

Mohammad I H Hirzallah et al. Crit Care Med. 2025.

. 2025 Jun 1;53(6):e1328-e1330.

doi: 10.1097/CCM.0000000000006658. Epub 2025 Jun 3.

Authors

Mohammad I H Hirzallah^{1

2}, Lochner Piergiorgio³, Christos Krogias⁴, Chiara Robba⁵, Jurgita Valaikiene⁶, Aarti Sarwal⁷, Felix Schlachetzki⁸, Jakob Pansell^{9

10}

Affiliations

¹ Departments of Neurology and Neurosurgery, Baylor College of Medicine, Houston, TX.
² Center for Space Medicine, Baylor College of Medicine, Houston, TX.
³ Department of Neurology, Saarland University Medical Center, Homburg, Germany.
⁴ Department of Neurology, Evangelisches Krankenhaus Herne, Academic Teaching Hospital of the Ruhr University Bochum, Herne, Germany.
⁵ IRCCS Policlinico San Martino, Genova, Italy.
⁶ Clinic of Neurology and Neurosurgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania.
⁷ Department of Neurology, Virginia Commonwealth University School of Medicine, Richmond, VA.
⁸ Department of Neurology, University of Regensburg, Center for Vascular Neurology and Intensive Care, Regensburg, Germany.
⁹ Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.
¹⁰ Department of Anesthesia and Intensive Care, Karolinska University Hospital, Stockholm, Sweden.

PMID: 40459387
DOI: 10.1097/CCM.0000000000006658

No abstract available

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Conflict of interest statement

Dr. Piergiorgio received funding from AstraZeneca GmbH Alexion. Dr. Sarwal received funding from SHINKEI, Stimdia Medical Inc, Butterfly, Inc, Image Monitoring, Inc, Bard, Biogen, Novartis, and CVR Global, the Society of Critical Care Medicine, Neurocritical Care, and Clinical Neuroimaging. The remaining authors have disclosed that they do not have any potential conflicts of interest.

References

1. Hansen H-C, Helmke K: Landmarks for sonographic optic nerve sheath diameter measurement need further anatomical clarification. Crit Care Med. 2025; 53:e1326–e1327
1. Hirzallah MI, Lochner P, Hafeez MU, et al.; Optic Nerve Sheath Diameter Point-of-Care Ultrasonography Quality Criteria Checklist (ONSD POCUS QCC) Expert Panelists: Optic nerve sheath diameter point-of-care ultrasonography quality criteria checklist: An international consensus statement on optic nerve sheath diameter imaging and measurement. Crit Care Med. 2024; 52:1543–1556
1. Hansen H-C, Sperhake J-P, Matschke J, et al.: Experimental analysis of echogenic signals appearing in optic nerve ultrasound. Neurocrit Care. 2024 Jul 31. [online first]
1. Stevens RRF, Gommer ED, Aries MJH, et al.: Optic nerve sheath diameter assessment by neurosonology: A review of methodologic discrepancies. J Neuroimaging. 2021; 31:814–825
1. Hirzallah MI, Lochner P, Hafeez MU, et al.: Quality assessment of optic nerve sheath diameter ultrasonography: Scoping literature review and Delphi protocol. J Neuroimaging. 2022; 32:808–824

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[1] Hansen H-C, Helmke K: Landmarks for sonographic optic nerve sheath diameter measurement need further anatomical clarification. Crit Care Med. 2025; 53:e1326–e1327

[2] Hansen H-C, Helmke K: Landmarks for sonographic optic nerve sheath diameter measurement need further anatomical clarification. Crit Care Med. 2025; 53:e1326–e1327

[3] Hirzallah MI, Lochner P, Hafeez MU, et al.; Optic Nerve Sheath Diameter Point-of-Care Ultrasonography Quality Criteria Checklist (ONSD POCUS QCC) Expert Panelists: Optic nerve sheath diameter point-of-care ultrasonography quality criteria checklist: An international consensus statement on optic nerve sheath diameter imaging and measurement. Crit Care Med. 2024; 52:1543–1556

[4] Hirzallah MI, Lochner P, Hafeez MU, et al.; Optic Nerve Sheath Diameter Point-of-Care Ultrasonography Quality Criteria Checklist (ONSD POCUS QCC) Expert Panelists: Optic nerve sheath diameter point-of-care ultrasonography quality criteria checklist: An international consensus statement on optic nerve sheath diameter imaging and measurement. Crit Care Med. 2024; 52:1543–1556

[5] Hansen H-C, Sperhake J-P, Matschke J, et al.: Experimental analysis of echogenic signals appearing in optic nerve ultrasound. Neurocrit Care. 2024 Jul 31. [online first]

[6] Hansen H-C, Sperhake J-P, Matschke J, et al.: Experimental analysis of echogenic signals appearing in optic nerve ultrasound. Neurocrit Care. 2024 Jul 31. [online first]

[7] Stevens RRF, Gommer ED, Aries MJH, et al.: Optic nerve sheath diameter assessment by neurosonology: A review of methodologic discrepancies. J Neuroimaging. 2021; 31:814–825

[8] Stevens RRF, Gommer ED, Aries MJH, et al.: Optic nerve sheath diameter assessment by neurosonology: A review of methodologic discrepancies. J Neuroimaging. 2021; 31:814–825

[9] Hirzallah MI, Lochner P, Hafeez MU, et al.: Quality assessment of optic nerve sheath diameter ultrasonography: Scoping literature review and Delphi protocol. J Neuroimaging. 2022; 32:808–824

[10] Hirzallah MI, Lochner P, Hafeez MU, et al.: Quality assessment of optic nerve sheath diameter ultrasonography: Scoping literature review and Delphi protocol. J Neuroimaging. 2022; 32:808–824

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