MBChB FRCA FANZCA FFICM PhD
Journal Article: Special Section Guest Editorial: Thirty Years of Functional Near-Infrared Spectroscopy
Highton, David, Boas, David, Minagawa, Yasuyo, Mesquita, Rickson C. and Gervain, Judit (2023). Special Section Guest Editorial: Thirty Years of Functional Near-Infrared Spectroscopy. Neurophotonics, 10 (02) 023501, 023501-023501. doi: 10.1117/1.nph.10.2.023501
Journal Article: The effect of anesthetic agent and mean arterial pressure on functional outcome after general anesthesia for endovascular thrombectomy
Crimmins, Danielle, Ryan, Elizabeth, Shah, Darshan, Lwin, Thar-Nyan, Ayotte, Steven, Redmond, Kendal and Highton, David (2022). The effect of anesthetic agent and mean arterial pressure on functional outcome after general anesthesia for endovascular thrombectomy. Journal of Neurosurgical Anesthesiology. doi: 10.1097/ana.0000000000000897
Journal Article: Tranexamic acid in patients undergoing noncardiac surgery
Devereaux, P. J., Marcucci, Maura, Painter, Thomas W., Conen, David, Lomivorotov, Vladimir, Sessler, Daniel I., Chan, Matthew T. V., Borges, Flavia K., Martínez-Zapata, María J., Wang, Chew-Yin, Xavier, Denis, Ofori, Sandra N., Wang, Michael K., Efremov, Sergey, Landoni, Giovanni, Kleinlugtenbelt, Ydo V., Szczeklik, Wojciech, Schmartz, Denis, Garg, Amit X., Short, Timothy G., Wittmann, Maria, Meyhoff, Christian S., Amir, Mohammed, Torres, David, Patel, Ameen, Duceppe, Emmanuelle, Ruetzler, Kurt, Parlow, Joel L., Tandon, Vikas ... Highton, David (2022). Tranexamic acid in patients undergoing noncardiac surgery. The New England Journal of Medicine, 386 (21), 1986-1997. doi: 10.1056/nejmoa2201171
(2024) Australian and New Zealand College of Anaesthestists
Anaesthetic and ICU management of the head injured patient
Highton, David and Smith, Martin (2011). Anaesthetic and ICU management of the head injured patient. 3rd ed. Handbook of Clinical Anaesthesia: Hodder Arnold.
Special Section Guest Editorial: Thirty Years of Functional Near-Infrared Spectroscopy
Highton, David, Boas, David, Minagawa, Yasuyo, Mesquita, Rickson C. and Gervain, Judit (2023). Special Section Guest Editorial: Thirty Years of Functional Near-Infrared Spectroscopy. Neurophotonics, 10 (02) 023501, 023501-023501. doi: 10.1117/1.nph.10.2.023501
Crimmins, Danielle, Ryan, Elizabeth, Shah, Darshan, Lwin, Thar-Nyan, Ayotte, Steven, Redmond, Kendal and Highton, David (2022). The effect of anesthetic agent and mean arterial pressure on functional outcome after general anesthesia for endovascular thrombectomy. Journal of Neurosurgical Anesthesiology. doi: 10.1097/ana.0000000000000897
Tranexamic acid in patients undergoing noncardiac surgery
Devereaux, P. J., Marcucci, Maura, Painter, Thomas W., Conen, David, Lomivorotov, Vladimir, Sessler, Daniel I., Chan, Matthew T. V., Borges, Flavia K., Martínez-Zapata, María J., Wang, Chew-Yin, Xavier, Denis, Ofori, Sandra N., Wang, Michael K., Efremov, Sergey, Landoni, Giovanni, Kleinlugtenbelt, Ydo V., Szczeklik, Wojciech, Schmartz, Denis, Garg, Amit X., Short, Timothy G., Wittmann, Maria, Meyhoff, Christian S., Amir, Mohammed, Torres, David, Patel, Ameen, Duceppe, Emmanuelle, Ruetzler, Kurt, Parlow, Joel L., Tandon, Vikas ... Highton, David (2022). Tranexamic acid in patients undergoing noncardiac surgery. The New England Journal of Medicine, 386 (21), 1986-1997. doi: 10.1056/nejmoa2201171
Advances in neuroimaging and monitoring to defend cerebral perfusion in noncardiac surgery
Fanning, Jonathon P., Huth, Samuel F., Robba, Chiara, Grieve, Stuart M. and Highton, David (2022). Advances in neuroimaging and monitoring to defend cerebral perfusion in noncardiac surgery. Anesthesiology, 136 (6), 1015-1038. doi: 10.1097/aln.0000000000004205
Scholkmann, F., Fischer, J. B., Frisk, L. Kobayashi, Delgado-Mederos, R., Mayos, M., Highton, D., Wolf, U., Wolf, M. and Durduran, T. (2021). Influence of study design on effects of mask wearing on fMRI BOLD contrast and systemic physiology — a comment on Law et al. (2021). NeuroImage, 244 118549, 118549. doi: 10.1016/j.neuroimage.2021.118549
Huth, Samuel F., Cho, Sung-Min, Robba, Chiara, Highton, David, Battaglini, Denise, Bellapart, Judith, Suen, Jacky Y., Li Bassi, Gianluigi, Taccone, Fabio Silvio, Arora, Rakesh C., Whitman, Glenn, Fraser, John F. and Fanning, Jonathon P. (2021). Neurological manifestations of coronavirus disease 2019: a comprehensive review and meta-analysis of the first 6 months of pandemic reporting. Frontiers in Neurology, 12 664599, 664599. doi: 10.3389/fneur.2021.664599
Wickham, A. J., Highton, D. T., Clark, S., Fallaha, D., Wong, D. J. N., Martin, D. S. and on behalf of the Research and Audit Federation of Trainees* (2021). Treatment threshold for intra-operative hypotension in clinical practice-a prospective cohort study in older patients in the UK. Anaesthesia, 77 (2) anae.15535, 153-163. doi: 10.1111/anae.15535
Dexamethasone and surgical-site infection
Corcoran, Tomás B, Myles, Paul S, Forbes, Andrew B, Cheng, Allen C, Bach, Leon A, O'Loughlin, Edmond, Leslie, Kate, Chan, Matthew T V, Story, David, Short, Timothy G, Martin, Catherine, Coutts, Pauline, Ho, Kwok M, PADDI Investigators, the Australian and New Zealand College of Anaesthetists Clinical Trials Network, and the Australasian Society for Infectious Diseases Clinical Research Network and Highton, David (2021). Dexamethasone and surgical-site infection. The New England Journal of Medicine, 384 (18), 1731-1741. doi: 10.1056/NEJMoa2028982
Wong, Danny J. N., Harris, Steve, Sahni, Arun, Bedford, James R., Cortes, Laura, Shawyer, Richard, Wilson, Andrew M., Lindsay, Helen A., Campbell, Doug, Popham, Scott, Barneto, Lisa M., Myles, Paul S., Moonesinghe, S. Ramani, SNAP-2: EPICCS collaborators and Highton, David (2020). Developing and validating subjective and objective risk-assessment measures for predicting mortality after major surgery: an international prospective cohort study. PLoS Medicine, 17 (10), e1003253. doi: 10.1371/journal.pmed.1003253
Odor, P. M., Bampoe, S., Moonesinghe, S. R., Andrade, J., Pandit, J. J., Lucas, D. N., A’Court, A, Abdel‐Gadir, D, Abdu, A, Abisogun, C, Aboud, Z, Abrams, J, Ackerman, A, Adamson, C, Addison, R, Adeyeye, A, Adler, R, Aduse‐Poku, M, Adyanthaya, S, Ahmad, N, Ahmed, D, Ahmed, A, Akindele, B, Akindele, O, Akrimi, S, Al‐Rawi, S, Ali, Y, Allam, J, Allana, A ... Pan‐London Perioperative Audit and Research Network (PLAN), for the DREAMY Investigators Group (2020). General anaesthetic and airway management practice for obstetric surgery in England: a prospective, multicentre observational study. Anaesthesia, 76 (4), 460-471. doi: 10.1111/anae.15250
Odor, P. M., Bampoe, S., Lucas, D. N., Moonesinghe, S R. , Andrade, J., Pandit, J. J., DREAMY Investigators Group and Highton, David (2020). Protocol for direct reporting of awareness in maternity patients (DREAMY): a prospective, multicentre cohort study of accidental awareness during general anaesthesia. International Journal of Obstetric Anesthesia, 42, 47-56. doi: 10.1016/j.ijoa.2020.02.004
Flexman, Alana M., Abcejo, Arnoley, Avitisian, Rafi, De Sloovere, Veerle, Highton, David, Juul, Niels, Li, Shu, Meng, Lingzhong, Paisansathan, Chanannait, Rath, Girija Prasad and Rozet, Irene (2020). Neuroanesthesia practice during the COVID-19 pandemic: recommendations from Society for Neuroscience in Anesthesiology and Critical Care (SNACC). Journal of Neurosurgical Anesthesiology, 32 (3) 691, 1-209. doi: 10.1097/ana.0000000000000691
Xeno-oximetry—cerebral oximeters and animal models
Skowno, Justin J., Highton, David and Tachtsidis, Ilias (2020). Xeno-oximetry—cerebral oximeters and animal models. Paediatric Anaesthesia, 30 (1), 4-5. doi: 10.1111/pan.13766
Management of the patient presenting with anaemia in the preoperative setting
Abeysiri, Sandaruwani, Chau, Marisa, Highton, David and Richards, Toby (2019). Management of the patient presenting with anaemia in the preoperative setting. Transfusion and Apheresis Science, 58 (4), 392-396. doi: 10.1016/j.transci.2019.06.014
Wong, D.J.N., Popham, S., Wilson, A.M., Barneto, L.M., Lindsay, H.A., Farmer, L., Saunders, D., Wallace, S., Campbell, D., Myles, P.S., Harris, S.K., Moonesinghe, S.R., on behalf of the SNAP-2: EPICCS collaborators and Highton, David (2019). Postoperative critical care and high-acuity care provision in the United Kingdom, Australia, and New Zealand. British Journal of Anaesthesia, 122 (4), 460-469. doi: 10.1016/j.bja.2018.12.026
Martin, Daniel, Lykoudis, Panagis M., Jones, Gabriel, Highton, David, Shaw, Alan, James, Sarah, Wei, Qiang and Fusai, Giuseppe (2018). Impact of postoperative intravenous fluid administration on complications following elective hepato-pancreato-biliary surgery. Hepatobiliary & Pancreatic Diseases International, 17 (5), 402-407. doi: 10.1016/j.hbpd.2018.09.001
Highton, D., Chitnis, D., Brigadoi, S., Phan, P., Tachtsidis, I., Cooper, R., Everdell, N., Hebden, J., Smith, M. and Elwell, C. E. (2018). A fibreless multiwavelength NIRS system for imaging localised changes in cerebral oxidised cytochrome C oxidase. Advances in Experimental Medicine and Biology, 1072, 339-343. doi: 10.1007/978-3-319-91287-5_54
optiFLAPP Collaborative and Highton, David (2018). Variation in the perioperative care of women undergoing abdominal-based microvascular breast reconstruction in the United Kingdom (The optiFLAPP Study). Journal of Plastic, Reconstructive and Aesthetic Surgery, 72 (1), 35-42. doi: 10.1016/j.bjps.2018.08.007
Watson, X., Chereshneva, M., Odor, P. M., Chis Ster, I., Pan-London Perioperative Audit and Research Network (PLAN), Cecconi, M., Johnston, C., Huddart, S., Woods, J., Hadi, N., Ali, S., Gill, P., Thorning, G., Boomers, O., Rope, T., Bartlett, R., Kuttler, A., O'Carroll-Kuehn, B., Dickinson, M., Lyness, C., Jha, R., Patel, S., Raj, A., Tanqueray, T., Cox, M., Khader, A., Vashisht, S., Liyanage, S., Ahmed, K. ... McHugh, B. (2018). Adoption of Lung Protective ventilation IN patients undergoing Emergency laparotomy: the ALPINE study. A prospective multicentre observational study. British Journal of Anaesthesia, 121 (4), 909-917. doi: 10.1016/j.bja.2018.04.048
A bright forecast for autoregulation monitoring?
Highton, David (2018). A bright forecast for autoregulation monitoring?. The Journal of Physiology, 596 (14), 2637-2638. doi: 10.1113/JP276290
Mitra, Subhabrata, Bale, Gemma, Highton, David, Gunny, Roxanna, Uria-Avellanal, Cristina, Bainbridge, Alan, Sokolska, Magdalena, Price, David, Huertas-Ceballos, Angela, Kendall, Giles S., Meek, Judith, Tachtsidis, Ilias and Robertson, Nicola J. (2017). Pressure passivity of cerebral mitochondrial metabolism is associated with poor outcome following perinatal hypoxic ischemic brain injury. Journal of Cerebral Blood Flow and Metabolism, 39 (1), 118-130. doi: 10.1177/0271678X17733639
Brigadoi, Sabrina, Phan, Phong, Highton, David, Powell, Samuel, Cooper, Robert J., Hebden, Jeremy, Smith, Martin, Tachtsidis, Ilias, Elwell, Clare E. and Gibson, Adam P. (2017). Image reconstruction of oxidized cerebral cytochrome C oxidase changes from broadband near-infrared spectroscopy data. Neurophotonics, 4 (2) 021105, 021105. doi: 10.1117/1.NPh.4.2.021105
Kemp, H. I., Bantel, C., Gordon, F., Brett, S. J., Laycock, H. C., PLAN and SEARCH Contributors and Highton, David (2017). Pain Assessment in INTensive care (PAINT): an observational study of physician‐documented pain assessment in 45 intensive care units in the United Kingdom. Anaesthesia, 72 (6), 737-748. doi: 10.1111/anae.13786
Phan, Phong, Highton, David, Lai, Jonathan, Smith, Martin, Elwell, Clare and Tachtsidis, Ilias (2016). Multi-channel multi-distance broadband nearinfrared spectroscopy system to measure the spatial response of cellular oxygen metabolism and tissue oxygenation. Biomedical Optics Express, 7 (11) #268365, 4424-4440. doi: 10.1364/BOE.7.004424
Chitnis, Danial, Cooper, Robert J., Dempsey, Laura, Powell, Samuel, Quaggia, Simone, Highton, David, Elwell, Clare, Hebden, Jeremy C. and Everdell, Nicholas L. (2016). Functional imaging of the human brain using a modular, fibre-less, high-density diffuse optical tomography system. Biomedical Optics Express, 7 (10) #269685, 4275-4288. doi: 10.1364/BOE.7.004275
Chitnis, Danial, Airantzis, Dimitrios, Highton, David, Williams, Rhys, Phong Phan, Giagka, Vasiliki, Powell, Samuel, Cooper, Robert J., Tachtsidis, Ilias, Smith, Martin, Elwell, Clare E., Hebden, Jeremy C. and Everdell, Nicholas (2016). Towards a wearable near infrared spectroscopic probe for monitoring concentrations of multiple chromophores in biological tissue in vivo. Review of Scientific Instruments, 87 (6) 065112, 065112-1-065112-9. doi: 10.1063/1.4954722
Wickham, Alex, Highton, David, Martin, Daniel, The Pan London Perioperative Audit and Research Network, Anwar, Sibtain, Bampoe, Sohail, Bantel, Carsten, Gooneratne, Mevan, Hopkins, Philip, Hunningher, Annie, Johnston, Carolyn, Laycock, Helen, O'Carroll, James, Odor, Peter, Philips, Sioned, Visram, Anil and Wordsworth, Harriet (2016). Care of elderly patients: a prospective audit of the prevalence of hypotension and the use of BIS intraoperatively in 25 hospitals in London. Perioperative Medicine, 5 (1) 12. doi: 10.1186/s13741-016-0036-1
Hyperoxia results in increased aerobic metabolism following acute brain injury
Ghosh, Arnab , Highton, David , Kolyva, Christina , Tachtsidis, Ilias , Elwell, Clare E. and Smith, Martin (2016). Hyperoxia results in increased aerobic metabolism following acute brain injury. Journal of Cerebral Blood Flow and Metabolism, 37 (8), 2910-2920. doi: 10.1177/0271678X16679171
Highton, David, Ghosh, Arnab, Tachtsidis, Ilias, Panovska-Griffiths, Jasmina, Elwell, Clare E. and Smith, Martin (2015). Monitoring cerebral autoregulation after brain injury: multimodal assessment of cerebral slow-wave oscillations using near-infrared spectroscopy. Anesthesia and Analgesia, 121 (1), 198-205. doi: 10.1213/ANE.0000000000000790
BrainSignals revisited: simplifying a computational model of cerebral physiology
Caldwell, Matthew, Hapuarachchi, Tharindi, Highton, David, Elwell, Clare, Smith, Martin and Tachtsidis, Ilias (2015). BrainSignals revisited: simplifying a computational model of cerebral physiology. PLoS One, 10 (5) e0126695, e0126695. doi: 10.1371/journal.pone.0126695
Kolyva, Christina, Ghosh, Arnab, Tachtsidis, Ilias, Highton, David, Cooper, Chris E., Smith, Martin and Elwell, Clare E. (2014). Cytochrome c oxidase response to changes in cerebral oxygen delivery in the adult brain shows higher brain-specificity than haemoglobin. NeuroImage, 85 (1), 234-244. doi: 10.1016/j.neuroimage.2013.05.070
Intensive care management of subarachnoid haemorrhage
Highton, David and Smith, Martin (2013). Intensive care management of subarachnoid haemorrhage. Journal of the Intensive Care Society, 14 (1), 28-35. doi: 10.1177/175114371301400108
Noninvasive cerebral oximetry: Is there light at the end of the tunnel?
Highton, David, Elwell, Clare and Smith, Martin (2010). Noninvasive cerebral oximetry: Is there light at the end of the tunnel?. Current Opinion in Anesthesiology, 23 (5), 576-581. doi: 10.1097/ACO.0b013e32833e1536
Neurological manifestations of coronavirus disease 2019: a comprehensive review
Fanning, Jonathon, Huth, Samuel, Cho, Sung-Min, Robba, Chiara, Highton, David, Battaglini, Denise, Bellapart-Rubio, Judith, Suen, Jacky, Bassi, Gianluigi Li, Taccone, Fabio, Arora, Rakesh, Whitman, Glenn and Fraser, John (2021). Neurological manifestations of coronavirus disease 2019: a comprehensive review. ANZAN Annual Scientific Meeting 2021, February 2021, 20-21 November 2021. London, United Kingdom: BMJ Group. doi: 10.1136/bmjno-2021-anzan.1
Allard, S., Pendry, K., Richards, T., Grant-Casey, J., Lowe, D., Highton, D. and Kotze, A. (2018). Patient Blood Management in Surgery - results of a repeat UK National Comparative Audit with improvement in practice. 58th Annual Scientific Meeting of the British-Society-for-Haematology, Liverpool, United Kingdom, 16-18 April 2018. Chichester, West Sussex, United Kingdom: Wiley-Blackwell Publishing. doi: 10.1111/bjh.15226
Wickham, A., Highton, D., Clark, S., Fallaha, D. and Martin, D. (2017). Relationship between pre-operative blood pressure and pre-induction blood pressure in patients aged 65 years or older in the UK. British Journal of Anaesthesia (BJA) Research Forum, Glasgow Scotland, 10-11 November 2016. Oxford, United Kingdom: Oxford University Press.
Phan, Phong, Highton, David, Tachtsidis, Ilias, Smith, Martin and Elwell, Clare (2016). A new multichannel broadband near infrared spectroscopy system to measure the spatial distribution of cytochrome-c-oxidase and tissue oxygenation. Optical Tomography and Spectroscopy, OTS 2016, Fort Lauderdale, FL, United States, 25-28 April 2016. Washington, DC, United States: OSA - The Optical Society. doi: 10.1364/OTS.2016.OM4C.3
Near infrared light scattering changes following acute brain injury
Highton, David, Tachtsidis, Ilias, Tucker, Alison, Elwell, Clare and Smith, Martin (2016). Near infrared light scattering changes following acute brain injury. 42nd Annual Meeting of International Society on Oxygen Transport to Tissue, Manchester England, 28 June - 3 July 2014. New York, NY, United States: Springer New York. doi: 10.1007/978-1-4939-3023-4_17
Phan, P., Highton, D., Brigadoi, S., Tachtsidis, I., Smith, M. and Elwell, C. E. (2016). Spatial distribution of changes in oxidised cytochrome C oxidase during visual stimulation using broadband near infrared spectroscopy imaging. 43rd Annual Meeting of the International Society on Oxygen Transport to Tissue, ISOTT 2015, Wuhan, China, 11-16 July 2015. New York, NY, United States: Springer New York LLC. doi: 10.1007/978-3-319-38810-6_26
Al-Armaghany, Allann, Tong, Kenneth, Highton, David and Leung, Terence S. (2016). Validation of a hybrid microwave-optical monitor to investigate thermal provocation in the microvasculature. 42nd Annual Meeting of International Society on Oxygen Transport to Tissue, Manchester England, 28 June - 3 July 2014. New York, NY United States: Springer New York LLC. doi: 10.1007/978-1-4939-3023-4_55
Highton, David, Ghosh, Arnab, Tachtsidis, Ilias, Elwell, Clare and Smith, Martin (2014). Analysis of slow wave oscillations in cerebral haemodynamics and metabolism following subarachnoid haemorrhage. 41st Annual Meeting of ISOTT, Hanover, NH, United States, 22 - 26 June 2013. New York, NY, United States: Springer New York LLC. doi: 10.1007/978-1-4939-0620-8_26
Robertson, J. L., Ghosh, A., Correia, T., Highton, D., Smith, M., Elwell, C. E. and Leung, T. S. (2014). Effect of blood in the cerebrospinal fluid on the accuracy of cerebral oxygenation measured by near infrared spectroscopy. 41st Annual Meeting of ISOTT, Hanover NH, United States, 22-26 June 2013. New York NY, United States: Springer New York. doi: 10.1007/978-1-4939-0620-8_31
Kolyva, Christina, Ghosh, Arnab, Tachtsidis, Ilias, Highton, David, Smith, Martin and Elwell, Clare E. (2013). Dependence on NIRS source-detector spacing of cytochrome c oxidase response to hypoxia and hypercapnia in the adult brain. 40th Annual Meeting of the International Society on Oxygen Transport to Tissue (ISOTT), Bruges Belgium, 19-24 August 2012. New York NY United States: Springer. doi: 10.1007/978-1-4614-7411-1-47
Highton, David, Panovska-Griffiths, Jasmina, Smith, Martin and Elwell, Clare E. (2013). Mathematical modelling of near-infrared spectroscopy signals and intracranial pressure in brain-injured patients. 40th Annual Meeting of the International Society on Oxygen Transport to Tissue, Bruges, Belgium, 19-24 August 2012. New York NY, United States: Springer. doi: 10.1007/978-1-4614-7411-1_46
Modelling cerebrovascular reactivity: A novel near-infrared biomarker of cerebral autoregulation?
Highton, David, Panovska-Griffiths, Jasmina, Ghosh, Arnab, Tachtsidis, Ilias, Banaji, Murad, Elwell, Clare and Smith, Martin (2013). Modelling cerebrovascular reactivity: A novel near-infrared biomarker of cerebral autoregulation?. 39th Annual Conference of the International Society on Oxygen Transport to Tissue (ISOTT), Washington DC United States, Jul 24-27, 2011. New York, NY, United States: Springer. doi: 10.1007/978-1-4614-4989-8-13
Ghosh, Arnab, Tachtsidis, Ilias, Kolyva, Christina, Highton, David, Elwell, Clare and Smith, Martin (2013). Normobaric hyperoxia does not change optical scattering or pathlength but does increase oxidised cytochrome c oxidase concentration in patients with brain injury. 39th Annual Conference of the International Society on Oxygen Transport to Tissue (ISOTT), Washington DC United States, 24-27 July 2011. New York NY United States: Springer. doi: 10.1007/978-1-4614-4989-8-10
Ghosh, Arnab, Kolyva, Christina, Tachtsidis, Ilias, Highton, David, Elwell, Clare E. and Smith, Martin (2013). Reduction of cytochrome c oxidase during vasovagal hypoxia-ischemia in human adult brain: A case study. 40th Annual Meeting of the International Society on Oxygen Transport to Tissue (ISOTT), Bruges Belgium, 19-24 August 2012. New York NY United States: Springer New York LLC. doi: 10.1007/978-1-4614-7411-1_4
Deoxyhaemoglobin as a biomarker of cerebral autoregulation
Highton, D, Ghosh, A, Tachtsidis, I, Kolyva, C, Panovska, J, Elwell, C and Smith, M (2012). Deoxyhaemoglobin as a biomarker of cerebral autoregulation. 32nd International Symposium on Intensive Care and Emergency Medicine, Brussels, Belgium, 20-23 March 2012. Philadelphia, PA, United States : Current Science . doi: 10.1186/cc10902
(2024) Australian and New Zealand College of Anaesthestists