• Bio

    Dr Matthias Jaeger is a dually qualified Neurosurgeon, having trained in both Germany and Australia. He is a member of the Royal Australasian College of Surgeons.

    Dr Jaeger completed neurosurgical training in Germany in 2007, part of which was with Professor Madjid Samii, one of the most prominent and recognised Neurosurgeons worldwide. He then did further advanced training in Sydney, where he worked as a Specialist from 2010 - 2013. He has been practising in the Illawarra since 2013.

    Dr Jaeger has a comprehensive neurosurgical practice, covering all aspects of cranial, spinal and peripheral nerve conditions. He aims to provide the highest standard of neurosurgical care in line with the best medical evidence available.

    He has a specific interest in the management of cervical and lumbar spinal disease. His specific surgical cranial interests are brain tumour operations (including base of skull conditions), as well as the management of cerebrovascular disease and hydrocephalus, where he is providing ‘cutting edge’ diagnostic methods. He treats trigeminal neuralgia with microvascular decompression and percutaneous techniques.

    Dr Jaeger has been doing extensive research in the field of Neurosurgery (see publications). He is a conjoint Associate Professor at the University of New South Wales and actively maintains his academic and teaching interests with ongoing projects in the field of cerebral blood flow regulation, neuro-oncology, neuro-epidemiology and hydrocephalus.

    He has received research funding from the NHMRC, the University of New South Wales, the Illawarra Health and Medical Research Institute and the Illawarra Shoalhaven Local Health District. 

  • Appointments

    • Wollongong Private Hospital
    • Wollongong Hospital
  • Memberships

    • Royal Australasian College of Surgeons
    • Neurosurgical Society of Australasia
    • Cooperative Trials Group for Neuro-Oncology (GOGNO)
    • International Society for Hydrocephalus and Cerebrospinal Fluid Disorders


  • Selected Publications

    • Google scholar lists 1726 citations; h-index = 18
    • Scopus lists 1272 citations; h-index = 15


    • Tissue oxygenation indices of cerebrovascular autoregulation in healthy volunteers: A comparison of two NIRS devices

      Peng A, Chua MJ, Chan B, Jaeger M, Aneman A, Chuan A

      Neurol Res 2020; 42:897-903. (IF 2019: 2.401)

    • Complications of elective intracranial pressure monitoring in adult hydrocephalus

      Vonhoff CR, Wallis T, Jaeger M

      J Clin Neurosci 2020; 79: 67-70. (IF 2019: 1.760)

    • The role of liquid biopsies in detecting molecular tumour biomarkers in brain cancer patients

      Sareen H, Garrett C, Lynch D, Powter B, Brungs D, Cooper A, Po JW, Koh E-S, Vessey J, Bazina R, Sheridan M, van Gelder J, Darwish B, Roberts TL, de Souza P, Becker TM

      Cancers 2020; 12:1831. (IF 2019: 6.126)

    • Isolation of circulating tumor cells from glioblastoma patients by direct immunomagnetic targeting

      Lynch D, Powter B, Po JW, Cooper A, Garrett C, Koh E-S, Sheridan M, van Gelder J, Darwish B, McKechnie S, Bazina R, Jaeger M, Roberts TL, de Souza P, Becker TM

      Appl Sci 2020; 10:3338. (IF 2018: 2.217)

    • Non-Invasive monitoring of dynamic cerebrovascular autoregulation and 'optimal blood pressure' in normal adult subjects

      Pham P, Bindra J, Aneman A, Chuan A, Worthington JM, Jaeger M

      Neurocrit Care 2019; 30:201-6. (IF: 2.720)

    • Is cerebrovascular autoregulation associated with outcomes after major noncardiac surgery?

      Chuan A, Short TG, Peng AZY, Wen SYB, Sun AX, Ting TH, Wan AS, Pope L, Jaeger M, Aneman A

      Acta Anaesthesiol Scand 2019; 63:8-17. (IF: 2.050)

    • Introduction of the abbreviated Westmead post-traumatic amnesia scale and impact on length of stay

      Watson CE, Clous EA, Jaeger M, D’Amours SK

      Scand J Surg 2017; 106:356-60. (IF: 1.925)

    • A pilot study using pre-operative cerebral tissue oxygen saturation to stratify cardiovascular risk in major non-cardiac surgery

      Wen SYB, Peng AZY, Boyle S, Cai S, Pope L, Tran MT, Short TG, Aneman A, Jaeger M, Chuan A

      Anaesth Intensive Care 2017; 45:202-9. (IF: 1.702)

    • Relationship between intracranial pressure and phase contrast cine MRI derived measures of intracranial pulsations in idiopathic normal pressure hydrocephalus

      Jaeger M, Khoo AK, Conforti DA, Cuganesan R

      J Clin Neurosci 2016; 33:169-72. (IF: 1.557)

    • Non-invasive monitoring of dynamic cerebrovascular autoregulation using near infrared spectroscopy and the finometer photoplethysmograph

      Bindra J, Pham P, Aneman A, Chuan A, Jaeger M

      Neurocrit Care 2016; 24:442-7. (IF: 2.752)

    • Is impaired cerebrovascular autoregulation associated with outcome in patients admitted to the ICU with early septic shock?

      Bindra J, Pham P, Chuan A, Jaeger M, Aneman A

      Crit Care Resusc 2016 ; 18:95-101. (IF: 2.520)

    • Are changes in cerebrovascular autoregulation following cardiac arrest associated with neurological outcome? Results of a pilot study

      Pham P, Bindra J, Chuan A, Jaeger M, Aneman A

      Resuscitation 2015; 96:192-8. (IF: 5.414)

    • Cerebrovascular pressure reactivity and cerebral oxygen regulation after severe head injury

      Jaeger M, Lang EW

      Neurocrit Care 2013; 19:69-73. (IF: 2.604)

    • Systematic and comprehensive literature review of publications on direct cerebral oxygenation monitoring

      Lang EW, Jaeger M

      Open Crit Care Med J 2013; 6:1-24.

    • Clinical significance of impaired cerebrovascular autoregulation after aneurysmal subarachnoid hemorrhage

      Jaeger M, Soehle M, Schuhmann MU, Meixensberger J.

      Stroke 2012; 43:2097-101. (IF: 6.158)

    • Comparing brain tissue oxygen measurements and derived autoregulation parameters from different probes (Licox vs. Raumedic)

      Dengl M, Jaeger M, Renner C, Meixensberger J

      Acta Neurochir (Wien) Suppl 2012; 114:165-8. (IF: 1.546)

    • Is postoperative intensive care unit admission a prerequisite for elective craniotomy?

      Bui JQH, Mendis RL, van Gelder JM, Sheridan MMP, Wright KM, Jaeger M

      J Neurosurg 2011; 115:1236-41. (IF: 2.965)

    • Different indices to assess cerebrovascular autoregulation have different dynamic properties

      Jaeger M

      Neurocrit Care 2010; 13:163-5. (IF: 2.353)

    • Effects of cerebrovascular pressure reactivity guided optimisation of cerebral perfusion pressure on brain tissue oxygenation after traumatic brain injury

      Jaeger M, Dengl M, Meixensberger J, Schuhmann MU

      Crit Care Med 2010; 38:1343-7. (IF: 6.254)

    • Giant PICA aneurysm presenting as intractable hiccups

      Gambhir S, Singh A, Maindiratta B, Jaeger M, Darwish B, Sheridan M

      J Clin Neurosci 2010; 17:945-6. (IF: 1.165)

    • Transient changes in brain tissue oxygen in response to modifications of cerebral perfusion pressure – observational study

      Radolovich DK, Czosnyka M, Timofeev I, Lavinio A, Kim JD, Jaeger M, Hutchinson P, Gupta A, Pickard JD, Smielewski P

      Anesth Analg 2010; 110:165-73. (IF: 3.274)

    • Questionable value of decompressive craniectomy after severe aneurysmal subarachnoid hemorrhage

      Jaeger M, Schuhmann MU, Meixensberger J

      Acta Neurochir (Wien) Suppl 2008;104:335-6. (IF: 1.634)

    • Protective effect of hyperbaric oxygen therapy on experimental brain contusions

      Voigt C, Förschler A, Jaeger M, Meixensberger J, Küppers-Tiedt L, Schuhmann MU

      Acta Neurochir (Wien) Suppl 2008; 102:441-5. (IF: 1.634)

    • Value of overnight monitoring of intracranial pressure in hydrocephalic children

      Schuhmann MU, Sood S, McAllister JP, Jaeger M, Ham SD, Czosnyka Z, Czosnyka M

      Pediatr Neurosurg 2008, 44:269-79. (IF: 0.886)

    • Continuous monitoring of cerebrovascular autoregulation after subarachnoid hemorrhage using brain tissue oxygen pressure reactivity and its relation to delayed cerebral infarction

      Jaeger M, Schuhmann MU, Soehle M, Nagel C, Meixensberger J

      Stroke 2007; 38:981-6. (IF: 6.296)

    • Response to letter by Stocchetti and Colombo

      Jaeger M

      Stroke 2007; 38:e70. (IF: 6.296)

    • Continuous assessment of cerebrovascular autoregulation after traumatic brain injury using brain tissue oxygen pressure reactivity

      Jaeger M, Schuhmann MU, Soehle M, Meixensberger J

      Crit Care Med 2006; 34:1783-8. (IF: 6.599)

    • Acute raised intracranial pressure in children - pathophysiology, monitoring and treatment

      Schuhmann MU, Jaeger M, Meixensberger J

      Kinder- und Jugendmedizin 2006, 6:13-24.

    • Improvement of brain tissue oxygen and intracranial pressure during and after surgical decompression for diffuse brain oedema and space occupying infarction

      Jaeger M, Soehle M, Meixensberger J

      Acta Neurochir (Wien) Suppl 2005; 95:117-8. (IF: 1.472)

    • Brain tissue oxygen (PtiO2): a clinical comparison of two monitoring devices

      Jaeger M, Soehle M, Meixensberger J

      Acta Neurochir (Wien) Suppl 2005; 95:79-81. (IF: 1.472)

    • Correlation of continuously monitored regional cerebral blood flow and brain tissue oxygen

      Jaeger M, Soehle M, Schuhmann MU, Winkler D, Meixensberger J

      Acta Neurochir (Wien) 2005; 147:51-6. (IF: 1.472)

    • Brain injury and proteomics/peptidomics: is it relevant? An overview

      Schuhmann MU, Heine G, Skardelly M, Jaeger M, Selle H

      Acta Neurochir (Wien) Suppl 2005; 95:465-70. (IF: 1.472)

    • Hyperacute measurement of brain-tissue oxygen, carbon dioxide, pH, and intracranial pressure before, during, and after cerebral angiography in patients with aneurysmatic subarachnoid hemorrhage in poor condition

      Meixensberger J, Jaeger M. Comment on Carvi y Nievas M et al.

      Surg Neurol 2005; 64:367. (IF: 1.382)

    • Comment on Reithmeier T et al. Relevance of ICP and ptiO2 for indication and timing of decompressive craniectomy in patients with malignant brain edema

      Meixensberger J, Jaeger M

      Acta Neurochir (Wien) 2005; 147:952. (IF: 1.472)

    • Traumatic subarachnoid hemorrhage and its clinical relevance

      Jaeger M, Meixensberger J

      Intensivmed 2004; 41:148-52.

    • Catecholamine levels in plasma and cerebrospinal fluid of neurosurgical patients with normal and elevated intracranial pressure

      Rudolph C, Schaffranietz L, Jaeger M, Vetter B, Meixensberger J, Olthoff D

      Anasth Intensiv Notf 2004; 39:603-9. (IF: 0.415)

    • Differences in hamstring muscle stretching of elite field hockey players and normal subjects

      Jaeger M, Freiwald J, Engelhardt M, Lange-Berlin V

      Sportverletz Sportschaden 2003; 17:65-70. (IF: 0.243)

    • Effects of decompressive craniectomy on brain tissue oxygen in patients with intracranial hypertension

      Jaeger M, Soehle M, Meixensberger J

      J Neurol Neurosurg Psychiatry 2003; 74:513-5. (IF: 3.035)

    • Online assessment of brain tissue oxygen autoregulation in traumatic brain injury and subarachnoid hemorrhage

      Soehle M, Jaeger M, Meixensberger J

      Neurol Res 2003; 25:411-7. (IF: 1.026)

    • Monitoring of brain tissue oxygenation following severe subarachnoid hemorrhage

      Meixensberger J, Väth A, Jaeger M, Kunze E, Dings J, Roosen K

      Neurol Res 2003; 25:445-50. (IF: 1.026)

    • Brain tissue oxygen guided treatment supplementing ICP/CPP therapy after traumatic brain injury

      Meixensberger J, Jaeger M, Väth A, Dings J, Kunze E, Roosen K

      J Neurol Neurosurg Psychiatry 2003; 74:760-4. (IF: 3.035)

    • Neurosurgical emergencies and missing neurosurgical intensive care unit capacity: is "operate-and-return" a sound policy?

      Jaeger M, Schuhmann MU, Samii M, Rickels E

      Eur J Emerg Med 2002; 9:334-8. (IF 2010: 0.901)

    • Lumbar ependymoma presenting with paraplegia following attempted spinal anaesthesia

      Jaeger M, Rickels E, Schmidt A, Samii M, Blömer U

      Br J Anaesth 2002; 88:438-40. (IF: 2.098)

    • Neuromonitoring in increased intracranial pressure

      Meixensberger J, Jaeger M

      Aktuel Neurol 2002; 29: 235-41. (IF: 0.295)

    • Intraventricular trigonal ganglioglioma arising from the choroid plexus

      Jaeger M, Hussein S, Schuhmann MU, Brandis A, Samii M, Blömer U

      Acta Neurochir (Wien) 2001; 143:953-5. (IF: 0.957)

    • Stretching – New research and its practical application

      Freiwald J, Engelhardt M, Konrad P, Jaeger M, Gnewuch A

      Manuelle Medizin 1999; 37:3-10.

    • Stretching - do current explanatory models suffice?

      Freiwald J, Engelhardt M, Jaeger M, Gnewuch A, Reuter I, Wiemann K, Starischka S

      Sportverletz Sportschaden 1998; 12:54-9. (IF 2001: 0.283)

    • What's the best algorithm for treating intracranial hypertension?

      Meixensberger J, Jaeger M

      Valadka AB, Andrews BT, eds. Neurotrauma: Evidence-based answers to common questions. New York, Stuttgart: Thieme 2005:167-71.

  • Selected Presentations

    • Differentiating between hip and back pain

      Dr Matthias Jaeger

      Presented at Common Conditions of the Aged – Education event. Kiama, Australia,  28/04/2015

    • Surgical management of degenerative lumbar spinal disease – it can’t get more controversial

      Dr Matthias Jaeger

      Presented at Controversies in Orthopaedics and Neurosurgery – education event, Wollongong, 14/10/2014.

    • Neurosurgical aspects in the management of degenerative lumbar spinal disease

      Dr Matthias Jaeger

      Presented at Illawarra Shoalhaven medicare local southern sector CPD meeting, Kiama, Australia, 15/04/2014

    • Hydrocephalus – the essentials of troubled waters

      Dr Matthias Jaeger

      Invited presentation at Neurosurgical Nurses Professional Development Scholarship Committee Annual Conference, Sydney, Australia, 21/06/2013

    • PbrO2-based autoregulation monitoring in traumatic brain injury and subarachnoid haemorrhage

      Dr Matthias Jaeger

      Invited presentation at Annual Scientific Meeting German Society of Neurosurgery, Leipzig, Germany, 16/06/2012

    • Bedside Neuromonitoring. CPP, ICP, PbrO2 and what else we can get out of it

      Dr Matthias Jaeger

      Invited presentation at 6th World Congress on Pediatric Critical Care, Sydney, Australia, 15/03/2011