Petter Aadahl

• Nypan, Erik; Tangen, Geir Arne; Brekken, Reidar; Aadahl, Petter & Manstad-Hulaas, Frode (2024). Endovascular navigation in patients: vessel-based registration of electromagnetic tracking to preoperative images. Frontiers in Radiology. ISSN 2673-8740. 4. doi: 10.3389/fradi.2024.1320535.
• Aravazhi, Agaraoli; Helgheim, Berit & Aadahl, Petter (2023). Decision-Making Based on Predictive Process Monitoring of Patient Treatment Processes: A Case Study of Emergency Patients. Advances in Operations Research. ISSN 1687-9147. p. 1–10. doi: 10.1155/2023/8867057. Show summary

  This paper investigates predictive process monitoring problems in emergency treatment by combining the fields of process management and artificial intelligence. The objective is to predict the next activity and its timestamp in the treatment of emergency patients who have undergone surgery at the gastroenterology or urology surgery units in a hospital in Norway. To achieve this goal, three models were developed using different algorithms, and the best performing model was identified using various performance metrics. The results demonstrate the potential of predictive process monitoring to accurately forecast the outcome of patient treatments. By leveraging the insights gained from predictive process monitoring, hospitals can make more informed decisions. The findings of this study suggest that predictive process monitoring holds significant promise as a tool for improving the efficiency and effectiveness of emergency patient treatment processes. This research has significant implications for the field of decision sciences, particularly regarding resource allocation, reducing waiting times, and improving patient outcomes. The ability to predict the outcomes of patient treatment processes has important implications for hospitals, allowing the streamlining and acceleration of the treatment process. Overall, this study provides a promising framework for predicting patient treatment processes by using the predictive process monitoring method. This could be expanded upon in future research, ultimately leading to improved patient outcomes and better decision-making in healthcare.

• Våpenstad, Cecilie; Lamøy, Siv Marit Jonli; Aasgaard, Frode; Manstad-Hulaas, Frode; Aadahl, Petter & Søvik, Edmund [Show all 7 contributors for this article] (2020). Influence of patient-specific rehearsal on operative metrics and technical success for endovascular aneurysm repair. MITAT. Minimally invasive therapy & allied technologies. ISSN 1364-5706. doi: 10.1080/13645706.2020.1727523. Full text in Research Archive Show summary

  Introduction: Patient-specific rehearsal (PsR) is a recent technology within virtual reality (VR) simulation that lets the operators train on patient-specific data in a simulated environment prior to the procedure. Endovascular aneurysm repair (EVAR) is a complex procedure where operative metrics and technical success might improve after PsR. Material and methods: We compared technical success and operative metrics (endovascular procedure time, contralateral gate cannulation time, fluoroscopy time, total radiation dose, number of angiograms and contrast medium use) between 30 patients, where the operators performed PsR (the PsR group), and 30 patients without PsR (the control group). Results: The endovascular procedure time was significantly shorter in the PsR group than in the control group (median 44 versus 55 min, p = .017). The other operative metrics were similar. Technical success rates were higher in the PsR group, 96.7% primary and assisted primary outcome versus 90.0% in the control group. The differences were not significant (p = .076). Conclusions: PsR before EVAR reduced endovascular procedure time, and our results indicate that it might improve technical success, but further studies are needed to confirm those results.

• Knai, Kathrine; Aadahl, Petter & Skjærvold, Nils Kristian (2020). Cardiac surgery does not lead to loss of oscillatory components in circulatory signals. Physiological Reports. ISSN 2051-817X. 8(9), p. e14423–e14423. doi: 10.14814/phy2.14423. Full text in Research Archive
• Våpenstad, Cecilie; Hofstad, Erlend Fagertun; Bernstein, Tor Eivind; Aadahl, Petter; Johnsen, Gjermund & Mårvik, Ronald (2019). Optimal timing of assessment tasks depending on experience level of surgical trainees. MITAT. Minimally invasive therapy & allied technologies. ISSN 1364-5706. 29(3), p. 161–169. doi: 10.1080/13645706.2019.1612441. Full text in Research Archive Show summary

  Introduction: Box trainers with motion analysis are important add-ons to surgical training and skills assessment outside the operating room, given that they exhibit construct validity. Material and methods: Four different tasks were tested for construct validity on a new laparoscopic box trainer with integrated motion analysis. Tracking data from the simulator were analyzed for eighteen parameters per task using an in-house software comparing participants with three different experience levels. Results: In total, ten novices, 22 intermediates and 16 experts enrolled. No or limited significant differences were found for the peg picker and rope race. For the precision cutting task 12 parameters showed significant difference between novices and intermediates, 14 between novices and experts and one between intermediates and experts. For the suture task the corresponding results were one, 15 and six. Conclusions: The precision cutting and suture task both showed construct validity for many of the parameters. While the precision cutting task distinguished best between novices and the other two groups, the suture task distinguished best between experts and the other two groups. These results show the importance of the timing of an assessment task, and that an assessment task might have limited value if experience levels are not considered.

• Gundrosen, Stine; Thomassen, Gøril; Wisborg, Torben & Aadahl, Petter (2018). Team talk and team decision processes: a qualitative discourse analytical approach to 10 real-life medical emergency team encounters . BMJ Open. ISSN 2044-6055. 8:e023749(11), p. 1–8. doi: 10.1136/bmjopen-2018-023749. Full text in Research Archive
• Dedichen, Hans Henrik; Hisdal, Jonny; Skogvoll, Eirik; Aadahl, Petter & Kirkeby-Garstad, Idar (2017). Reduced reactive hyperemia may explain impaired flow-mediated dilation after on-pump cardiac surgery. Physiological Reports. ISSN 2051-817X. 5(10), p. 1–7. doi: 10.14814/phy2.13274. Full text in Research Archive
• Tyvold, Stig Sverre; Dahl, Torbjørn; Dragsund, Stein; Gunnes, Sigurd; Lyng, Oddveig & Damås, Jan Kristian [Show all 8 contributors for this article] (2017). Bronchial microdialysis monitoring of inflammatory response in open abdominal aortic aneurysm repair; an observational study. Physiological Reports. ISSN 2051-817X. 5(14). doi: 10.14814/phy2.13348. Full text in Research Archive
• Langeland, Halvor J.B.; Lyng, Oddveig; Aadahl, Petter & Skjaervold, Nils Kristian (2017). The coherence of macrocirculation, microcirculation, and tissue metabolic response during nontraumatic hemorrhagic shock in swine. Physiological Reports. ISSN 2051-817X. 5(7). doi: 10.14814/phy2.13216. Full text in Research Archive
• Gundrosen, Stine; Andenæs, Ellen; Aadahl, Petter & Thomassen, Gøril Margrethe (2016). Team talk and team activity in simulated medical emergencies: a discourse analytical approach. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 24(135). doi: 10.1186/s13049-016-0325-1. Full text in Research Archive
• Rimehaug, Audun Eskeland; Skogvoll, Eirik; Aadahl, Petter; Lyng, Oddveig; Nordhaug, Dag Ole & Løvstakken, Lasse [Show all 7 contributors for this article] (2016). Minimally invasive beat-by-beat monitoring of cardiac power in normal hearts and during acute ventricular dysfunction. Physiological Reports. ISSN 2051-817X. 4:e12989(19). doi: 10.14814/phy2.12989. Full text in Research Archive Show summary

  Cardiac power, the product of aortic flow and blood pressure, appears to be a fundamental cardiovascular parameter. The simplified version named cardiac power output (CPO), calculated as the product of cardiac output (CO) in L/min and mean arterial pressure (MAP) in mmHg divided by 451, has shown great ability to predict outcome in a broad spectrum of cardiac disease. Beat-by-beat evaluation of cardiac power (PWR) therefore appears to be a possibly valuable addition when monitoring circulatory unstable patients, providing parameters of overall cardiovascular function. We have developed a minimally invasive system for cardiac power measurement, and aimed in this study to compare this system to an invasive method (ttPWR). Seven male anesthetized farm pigs were included. A laptop with in-house software gathered audio from Doppler signals of aortic flow and blood pressure from the patient monitor to continuously calculate and display a minimally invasive cardiac power trace (uPWR). The time integral per cardiac cycle (uPWR-integral) represents cardiac work, and was compared to the invasive counterpart (ttPWR-integral). Signals were obtained at baseline, during mechanically manipulated preload and afterload, before and after induced global ischemic left ventricular dysfunction. We found that the uPWR-integral overestimated compared to the ttPWR-integral by about 10% (P < 0.001) in both normal hearts and during ventricular dysfunction. Bland-Altman limits of agreement were at +0.060 and -0.054 J, without increasing spread over the range. In conclusion we find that the minimally invasive system follows its invasive counterpart, and is ready for clinical research of cardiac power parameters.

• Rimehaug, Audun Eskeland; Hoff, Ingrid E Taraldsrud; Høiseth, Lars Øivind; Hisdal, Jonny; Aadahl, Petter & Kirkeby-Garstad, Idar (2016). Cardiac power parameters during hypovolemia, induced by the lower body negative pressure technique, in healthy volunteers. BMC Anesthesiology. ISSN 1471-2253. 16(31). doi: 10.1186/s12871-016-0195-0. Full text in Research Archive Show summary

  Background Changes in cardiac power parameters incorporate changes in both aortic flow and blood pressure. We hypothesized that dynamic and non-dynamic cardiac power parameters would track hypovolemia better than equivalent flow- and pressure parameters, both during spontaneous breathing and non-invasive positive pressure ventilation (NPPV). Methods Fourteen healthy volunteers underwent lower body negative pressure (LBNP) of 0, −20, −40, −60 and −80 mmHg to simulate hypovolemia, both during spontaneous breathing and during NPPV. We recorded aortic flow using suprasternal ultrasound Doppler and blood pressure using Finometer, and calculated dynamic and non-dynamic parameters of cardiac power, flow and blood pressure. These were assessed on their association with LBNP-levels. Results Respiratory variation in peak aortic flow was the dynamic parameter most affected during spontaneous breathing increasing 103 % (p < 0.001) from baseline to LBNP −80 mmHg. Respiratory variation in pulse pressure was the most affected dynamic parameter during NPPV, increasing 119 % (p < 0.001) from baseline to LBNP −80 mmHg. The cardiac power integral was the most affected non-dynamic parameter falling 59 % (p < 0.001) from baseline to LBNP −80 mmHg during spontaneous breathing, and 68 % (p < 0.001) during NPPV. Conclusions Dynamic cardiac power parameters were not better than dynamic flow- and pressure parameters at tracking hypovolemia, seemingly due to previously unknown variation in peripheral vascular resistance matching respiratory changes in hemodynamics. Of non-dynamic parameters, the power parameters track hypovolemia slightly better than equivalent flow parameters, and far better than equivalent pressure parameters.

• Dedichen, Hans Henrik; Kirkeby-Garstad, Idar; Aadahl, Petter; Hisdal, Jonny & Amundsen, Brage H. (2016). Cardiac function assessed by exercise echocardiography on the first morning after coronary artery bypass grafting. Clinical Physiology and Functional Imaging. ISSN 1475-0961. 36(4), p. 274–280. doi: 10.1111/cpf.12224.
• Kirkeby-Garstad, Idar; Trønnes, Håkon; Stenseth, Roar; Sellevold, Olav F Münter; Aadahl, Petter & Skogvoll, Eirik (2015). The precision of pulmonary artery catheter bolus thermodilution cardiac output measurements varies with the clinical situation. Journal of Cardiothoracic and Vascular Anesthesia. ISSN 1053-0770. 29(4), p. 881–888. doi: 10.1053/j.jvca.2014.12.016.
• Dedichen, Hans Henrik; Hisdal, Jonny; Aadahl, Petter; Nordhaug, Dag Ole; Olsen, Per Olav & Kirkeby-Garstad, Idar (2015). Elevated arterial lactate concentrations early after coronary artery bypass grafting are associated with increased anaerobic metabolism in skeletal muscle. Journal of Cardiothoracic and Vascular Anesthesia. ISSN 1053-0770. 29(2), p. 367–373. doi: 10.1053/j.jvca.2014.08.001.
• Gundrosen, Stine; Solligård, Erik & Aadahl, Petter (2014). Team competence among nurses in an intensive care unit: The feasibility of in situ simulation and assessing non-technical skills. Intensive & Critical Care Nursing. ISSN 0964-3397. 30(6), p. 312–317. doi: 10.1016/j.iccn.2014.06.007.
• Jakola, Asgeir S; Jørgensen, Arve; Selbekk, Tormod; Michler, Ralf-Peter; Solheim, Ole & Torp, Sverre Helge [Show all 9 contributors for this article] (2014). Animal study assessing safety of an acoustic coupling fluid that holds the potential to avoid surgically induced artifacts in 3D ultrasound guided operations. BMC Medical Imaging. ISSN 1471-2342. 14(11). doi: 10.1186/1471-2342-14-11. Full text in Research Archive Show summary

  Background Use of ultrasound in brain tumor surgery is common. The difference in attenuation between brain and isotonic saline may cause artifacts that degrade the ultrasound images, potentially affecting resection grades and safety. Our research group has developed an acoustic coupling fluid that attenuates ultrasound energy like the normal brain. We aimed to test in animals if the newly developed acoustic coupling fluid may have harmful effects. Methods Eight rats were included for intraparenchymal injection into the brain, and if no adverse reactions were detected, 6 pigs were to be included with injection of the coupling fluid into the subarachnoid space. Animal behavior, EEG registrations, histopathology and immunohistochemistry were used in assessment. Results In total, 14 animals were included, 8 rats and 6 pigs. We did not detect any clinical adverse effects, seizure activity on EEG or histopathological signs of tissue damage. Conclusion The novel acoustic coupling fluid intended for brain tumor surgery appears safe in rats and pigs under the tested circumstances. Keywords: Brain imaging; Brain tumor; Intraoperative imaging; Ultrasound

• Rimehaug, Audun Eskeland; Lyng, Oddveig; Nordhaug, Dag Ole; Løvstakken, Lasse; Aadahl, Petter & Kirkeby-Garstad, Idar (2013). Cardiac power integral: a new method for monitoring cardiovascular performance. Physiological Reports. ISSN 2051-817X. 1(6). doi: 10.1002/phy2.159. Full text in Research Archive
• Skjaervold, Nils Kristian; Østling, Dan; Hjelme, Dag Roar; Spigset, Olav; Lyng, Oddveig & Aadahl, Petter (2013). Blood Glucose Control Using a Novel Continuous Blood Glucose Monitor and Repetitive Intravenous Insulin Boluses: Exploiting Natural Insulin Pulsatility as a Principle for a Future Artificial Pancreas. International Journal of Endocrinology. ISSN 1687-8337. doi: 10.1155/2013/245152. Full text in Research Archive Show summary

  aim of this study was to construct a glucose regulatory algorithm by employing the natural pulsatile pattern of insulin secretion and the oscillatory pattern of resting blood glucose levels and further to regulate the blood glucose level in diabetic pigs by this method. We developed a control algorithm based on repetitive intravenous bolus injections of insulin and combined this with an intravascular blood glucose monitor. Four anesthetized pigs were used in the study. The animals developed a mildly diabetic state from streptozotocin pretreatment. They were steadily brought within the blood glucose target range of 4.5–6.0 mmol/L in 21 to 121 min and kept within that range for 128 to 238 min (hypoglycemic values varied from 2.9 to 51.1 min). The study confirmed our hypotheses regarding the feasibility of this new principle for blood glucose control, and the algorithm was constantly improved during the study to produce the best results in the last animals. The main obstacles were the drift of the IvS-1 sensor and problems with the calibration procedure, which calls for an improvement in the sensor stability before this method can be applied fully in new studies in animals and humans.

• Skjaervold, Nils Kristian & Aadahl, Petter (2012). Comparison of arterial and mixed venous blood glucose levels in hemodynamically unstable pigs: implications for location of a continuous glucose sensor. Acta Diabetologica. ISSN 0940-5429. 49(6), p. 489–491. doi: 10.1007/s00592-012-0394-1.
• Manstad-Hulaas, Frode; Tangen, Geir Arne; Dahl, Torbjørn; Hernes, Toril A. Nagelhus & Aadahl, Petter (2012). Three-Dimensional Electromagnetic Navigation vs. Fluoroscopy for Endovascular Aneurysm Repair: A Prospective Feasibility Study in Patients. Journal of Endovascular Therapy. ISSN 1526-6028. 19(1), p. 70–78. doi: 10.1583/11-3557.1.
• Skjaervold, Nils Kristian; Lyng, Oddveig; Spigset, Olav & Aadahl, Petter (2012). Pharmacology of Intravenous Insulin Administration: Implications for Future Closed-Loop Glycemic Control by the Intravenous/Intravenous Route. Diabetes Technology & Therapeutics. ISSN 1520-9156. 14(1), p. 23–29. doi: 10.1089/dia.2011.0118.
• Manstad-Hulaas, Frode; Tangen, Geir Arne; Gruionu, LG; Aadahl, Petter & Hernes, Toril A. Nagelhus (2011). Three-Dimensional Endovascular Navigation With Electromagnetic Tracking: Ex Vivo and In Vivo Accuracy. Journal of Endovascular Therapy. ISSN 1526-6028. 18(2), p. 230–240. doi: 10.1583/10-3301.1.
• Skjærvold, Nils Kristian; Solligård, Erik; Hjelme, Dag Roar & Aadahl, Petter (2011). Continuous Measurement of Blood Glucose Validation of a New Intravascular Sensor. Anesthesiology. ISSN 0003-3022. 114(1), p. 120–125. doi: 10.1097/aln.0b013e3181ff4187.
• Bjerkelund, Carl Eivind; Christensen, Per; Dragsund, Stein & Aadahl, Petter (2010). Hvordan oppnå fri luftvei? Tidsskrift for Den norske legeforening. ISSN 0029-2001. 130(5), p. 507–510. doi: 10.4045/tidsskr.08.0548.
• Tyvold, Stig Sverre; Solligård, Erik; Gunnes, Sigurd; Lyng, Oddveig; Johannisson, Anders & Grønbech, Jon Erik [Show all 7 contributors for this article] (2010). Bronchial microdialysis of cytokines in the epithelial lining fluid in experimental intestinal ischemia and reperfusion before onset of manifest lung injury. Shock. ISSN 1073-2322. 34(5), p. 517–524. doi: 10.1097/SHK.0b013e3181dfc430.
• Juel, Ingebjørg s.; Solligård, Erik; Tvedt, Kåre E; Skogvoll, Eirik; Jynge, Per & Beisvåg, Vidar [Show all 10 contributors for this article] (2008). Post-ischaemic restituted intestinal mucosa is more resistant to further ischaemia than normal mucosa in the pig. Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 68, p. 106–116. doi: 10.1080/00365510701534833.
• Solligård, Erik; Juel, Ingebjørg s.; Spigset, Olav; Romundstad, Pål Richard; Grønbech, Jon Erik & Aadahl, Petter (2008). Gut luminal lactate measured by microdialysis mirrors permeability of the intestinal mucosa after ischemia. Shock. ISSN 1073-2322. 29. doi: 10.1097/SHK.0b013e3180cab3ce.
• Asheim, P; Spigset, Olav; Aasarod, K; Walstad, RA; Uggen, PE & Zahlsen, K [Show all 7 contributors for this article] (2008). Pharmacokinetics of intraperitoneally instilled aminophylline, terbutaline and tobramycin in pigs. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 52(2), p. 243–248. doi: 10.1111/j.1399-6576.2007.01535.x.
• Solligård, Erik; Wahba, Alexander; Skogvoll, Eirik; Stenseth, Roar; Grønbech, Jon Erik & Aadahl, Petter (2007). Rectal lactate levels in endoluminal microdialysate during routine coronary surgery. Anaesthesia. ISSN 0003-2409. 62, p. 250–258. doi: 10.1111/j.1365-2044.2006.04937.x.
• Brattli, Olav; Nystuen, Kjell; Sæther, Ola Dalsegg; Aadahl, Petter; Grønbech, Jon Erik & Myhre, Hans Olav (2007). Regional distribution of blood flow during proximal aortic cross-clamping: An experimental study using coloured microspheres. Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. p. 526–535. doi: 10.1080/00365510701196906.
• Tyvold, Stig Sverre; Solligård, Erik; Lyng, Oddveig; Steinshamn, Sigurd Loe; Gunnes, Sigurd & Aadahl, Petter (2007). Continuous monitoring of the bronchial epithelial lining fluid by microdialysis. Respiratory Research. ISSN 1465-9921. 1(8). doi: 10.1186/1465-9921-8-78.
• Juel, IS; Solligård, Erik; Skogvoll, Eirik; Aadahl, Petter & Grønbech, Jon Erik (2007). Lactate and glycerol released to the intestinal lumen reflect mucosal injury and permeability changes caused by strangulation obstruction. European Surgical Research. ISSN 0014-312X. 39, p. 340–349. doi: 10.1159/000105132.
• Manstad-Hulaas, Frode; Ommedal, S; Tangen, GA; Aadahl, Petter & Hernes, Toril A. Nagelhus (2007). Side-branched AAA stent graft insertion using navigation technology: A phantom study. European Surgical Research. ISSN 0014-312X. 39, p. 364–371. doi: 10.1159/000106512.
• Uleberg, Oddvar; Vinjevoll, OP; Eriksson, U; Aadahl, Petter & Skogvoll, Eirik (2007). Overtriage in trauma - what are the causes? Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 51, p. 1178–1183. doi: 10.1111/j.1399-6576.2007.01414.x.
• Åsheim, Per; Spigset, Olav; Aasarød, Knut; Walstad, Rolf Aksel; Uggen, Per Einar & Zahlsen, Kolbjørn [Show all 7 contributors for this article] (2007). Pharmacokinetics of intraperitoneal instilled aminophylline, terbutaline and tobramycin in pigs. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172.
• Åsheim, Per; Uggen, Per Einar; Aasarød, Knut & Aadahl, Petter (2007). En 58 år gammel kvinne med kort tarm-syndrom og ernæringssvikt. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 127, p. 1370–1371.
• Eide, Trine Olberg; Romundstad, Pål Richard; Stenseth, Roar; Aadahl, Petter & Myhre, Hans Olav (2006). Spinal fluid dynamics during thoracic and thoracoabdominal aortic surgery. International Angiology. ISSN 0392-9590. 25, p. 46–51.
• Åsheim, Per; Uggen, Per Einar; Aasarød, Knut Ivar & Aadahl, Petter (2006). Intraperitoneal fluid therapy: an alternative to intravenous treatment in a patient with limited vascular access. Anaesthesia. ISSN 0003-2409. 61(5), p. 502–504.
• Yavuz, Yunus; Rønning, Kirsten; Bakkelund, Karin Elvenes; Lyng, Oddveig; Aadahl, Petter & Mårvik, Ronald [Show all 7 contributors for this article] (2006). Hemodynamic and tissue blood flow responses to long-term pneumoperitoneum and hypercapnia in the pig. Surgical Endoscopy. ISSN 0930-2794. 20(9), p. 1394–1401.
• Solligård, Erik; Veddeng, Odd Jarle & Aadahl, Petter (2005). "Pilotprosjektet i anestesiologi: Erfaringer med en alternativ pedagogisk metode ved gjennomføring av kurs for spesialistkandidater". NAForum. ISSN 0802-5088. 18(1), p. 38–40.
• Solligård, Erik; Juel, Ingebjørg S.; Bakkelund, Karin Elvenes; Jynge, Per; Tvedt, Kåre E & Johnsen, Harald [Show all 8 contributors for this article] (2005). Gut luminal microdialysis of glycerol as a marker of intestinal ischemic injury and recovery. Critical Care Medicine. ISSN 0090-3493. 33(10), p. 2278–2285.
• Aasland, Jenny; Lundbom, Jan; Eide, Trine Olberg; Ødegård, Asbjørn; Aadahl, Petter & Romundstad, Pål Richard [Show all 7 contributors for this article] (2005). Recovery following treatment of descending thoracic aortic disease. A comparison between endovascular repair and open surgery. International Angiology. ISSN 0392-9590. 24, p. 231–237.
• Eide, Trine Olberg; Aasland, Jenny; Romundstad, Pål Richard; Stenseth, Roar; Sæther, Ola Dalsegg & Aadahl, Petter [Show all 7 contributors for this article] (2005). Changes in Hemodynamics and Acid-Base Balance during Cross-Clamping of the Descending Thoracic Aorta. European Surgical Research. ISSN 0014-312X. 37(6), p. 330–334. doi: 10.1159/000090332.
• Haug, Erik Skaaheim; Romundstad, Pål Richard; Aadahl, Petter & Myhre, Hans Olav (2004). Emergency Non-ruptured Abdominal Aortic Aneurysm. European Journal of Vascular and Endovascular Surgery. ISSN 1078-5884. 28, p. 612–618. doi: 10.1016/j.ejvs.2004.09.013.

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• Ødegården, Mona; Wold, Janne Hjelde; Nordrum, Ivar Skjåk; Buset, Karen Johanne; Aadahl, Petter & Kvam, Anne Mari Selven [Show all 7 contributors for this article] (2022). TING:utstilling med gjenstander fra samlingen til Medisinsk museum.
• Gundrosen, Stine; Thomassen, Gøril; Wisborg, Torben & Aadahl, Petter (2018). Forhandling om mening i tverrprofesjonelle team som behandler kritisk syke pasienter- en diskursanalytisk tilnærming. Show summary

  Introduksjon: I akuttmedisinske situasjoner kan kommunikasjonssvikt forårsake fatale situasjoner. For å identifisere kommunikasjonsstrategier som har betydning for pasientsikkerhet, må vi forstå forbindelsene mellom «team-snakk» og team-aktivitet. I denne studien utforsker vi hvordan spesielle former for snakk virker inn i beslutningsprosesser i team som ikke jobber i algoritme-styrte behandlingssituasjoner. Metode: Vi observerte og gjorde videoopptak av 10 tverrprofesjonelle medisinske akutt-team i mottak av kritisk syke pasienter (ikke traumer). Team-snakket og samtidig pågående aktivitet ble transkribert og analysert. Ved hjelp av kvalitativ diskursanalyse gjorde vi en strukturell kartlegging, og analyserte funksjonen til tre spesifikke former for snakk (diskurstyper) i team-beslutningsprosesser; online-kommentarer (ONC: beskrivelse og evalueringer av «real-time» observasjoner), meta-kommentarer (MC: implisitte beskjeder som er typiske for virksomheten og som orienterer seg mot neste steg) og offline-kommentarer (OFC: avklaringer og forklaringer). Resultater: De tre diskurs-typene hadde viktige funksjoner i forhandling av mening i teamenes beslutningsprosesser. Både ONC og MC genererte progresjon gjennom distribusjon av oppgaver og ansvar. OFC satte beslutningsprosessene midlertidig på pause og la til rette for felles forståelse i teamet. Diskusjon/ konklusjon: Denne studien peker på hvordan naturlig forekommende snakk i akuttmedisinske team, som ikke jobber i algoritme-styrte situasjoner, innebærer forhandling om mening. Analysen viser hvordan de tre diskurstypene bidrar i forhandling om ekspertise, i forhandling om felles forståelse, til å skape beslutningsgrunnlag, og til koordinering av aktiviteter i teamet. For å bedre kommunikasjonen, og dermed pasientsikkerhet i akutte situasjoner, bør relasjonen mellom team-snakk og teamarbeid integreres i teamtrening.

• Gundrosen, Stine; Thomassen, Gøril; Wisborg, Torben & Aadahl, Petter (2018). Communication in action.
• Ødegården, Mona; Buset, Karen Johanne; Nordrum, Ivar Skjåk; Kvam, Anne Mari Selven; Sylvester, Morten & Wold, Janne Hjelde [Show all 18 contributors for this article] (2018). U;REDD - en utstilling om angst. Show summary

  Utstillingen "U;REDD - en utstilling om angst" har som mål å skape mer åpenhet om psykisk helse og angstlidelser. Utstillingen skal også fremme mot og gi håp om at det kan bli bedre. Å være redd og å ha angst er ikke det samme. Likevel kan kroppen ha de samme reaksjonene. Derfor kan mange gjenkjenne noe i det å leve med angst. Angst rammer mange, særlig unge og unge voksne. Angst som lidelse kan kreve profesjonell hjelp og behandling. Det er heldigvis mye som kan gjøres for at onde sirkler skal kunne snus og noe av det viktigste er å våge å fortelle om angsten. I utstillingens første del visualiseres angst gjennom grafisk historiefortelling i form av illustrasjoner ved Nina Eide Holtan og poetisk tekst ved Marte Huke. Utstillingens faktadel gir opplysning om angst og angstlidelser. Publikum utfordres; helt frivillig, til å reflektere over psykisk helse.

• Kirkeby-Garstad, Idar; Trønnes, Håkon; Stenseth, Roar; Sellevold, Olav F Münter; Aadahl, Petter & Skogvoll, Eirik (2016). The Precision of Pulmonary Artery Catheter Bolus Thermodilutiom Cardiac Measurements Varies With the Clinical Situation. Erratum. Journal of Cardiothoracic and Vascular Anesthesia. ISSN 1053-0770. 30(1).
• Buset, Karen Johanne; Kvam, Anne Mari Selven; Nordrum, Ivar Skjåk; Strypet, Hanne; Sylvester, Morten & Ødegården, Mona [Show all 9 contributors for this article] (2015). UNG HELSE. Show summary

  KLADD. Åpnet 1.12.2015. Utstillingen handler om det å være barn på sykehus. Kanskje har du selv vært på sykehus som barn, eller har foreldre eller besteforeldre som var helt alene på sykehus da de var små? Det var nemlig ikke vanlig å få ha med seg foreldrene sine når man var innlagt på sykehus før - faktisk helt fram til midten av 1970-tallet. I utstillingen møter vi skikkelsene Anne og Birk, som begge er innlagt på sykehus. Anne lever på 1920-tallet og har tuberkulose, mens Birk er fra nåtiden og har fått leukemi (blodkreft). Utstillingen tar også opp tema som hvorfor vi vaksinerer oss, og hva er egentlig flokkbeskyttelse? Den handler også om helseutfordringer, både her i Norge og rundt om i verden. Mangel på rent vann er for eksempel en av utfordringene for god helse i verden.

• Andenæs, Ellen; Gundrosen, Stine; Thomassen, Gøril & Aadahl, Petter (2015). Kommunikasjon i akuttmedisinske team. Medisinsk simulering som vei til bedre kommunikasjon?
• Aadahl, Petter (2014). Samarbeid universitet-helseforetak om forskning og utdanning.
• Mohn, Hilde Stuedahl; Gundrosen, Stine & Aadahl, Petter (2014). Simulated Kangaroo care – handling preterm infants right after delivery.
• Kønig, Rolf; Hynne, Hans; Dragsund, Stein; Trønnes, Håkon; Mohn, Hilde Stuedahl & Gundrosen, Stine [Show all 7 contributors for this article] (2014). Introducing videolaryngoscopy in the anesthesia department using simulation.
• Nordrum, Ivar Skjåk; Strypet, Hanne; Sylvester, Morten; Buset, Karen Johanne; Kvam, Anne Mari Selven & Aadahl, Petter (2014). Fra kalde isfjell til varme hjerter.
• Aadahl, Petter (2013). Kompetansetjeneste i simulering.
• Gundrosen, Stine; Andenæs, Ellen & Aadahl, Petter (2013). Team communication in medical emergency teams during simulation – a discourse analytical perspective. Show summary

  Background: Good team performance is essential for patient safety and team communication is one key (?) element related to team performance. Simulation offers a possibility to study communication in a safe setting and such training has been shown to improve early trauma care. However, the differences between communication in simulation and in real-life critical care settings have to be addressed; would practitioners in simulation perform and thus communicate differently with a real patient? Simulation presents ample opportunities for empirical groundwork needed to develop the robust analytical tools needed to investigate real-life communication. Aims: 1) to develop analytical tools that can capture the dynamics and complexity of team communication, and 2) to provide an empirical basis for comparing communication under simulation with communication in real life situations. Method: 6 simulation sessions based on the same scenario with six different teams were videotaped and transcribed in detail. The full-scale simulations took place in situ in an emergency department at a university hospital. The videotapes were transcribed and analyzed according to principles of integrated activity analysis. Results: The communication in medical emergency teams is complex and dynamic, with many participants and frequent sequences of parallel talk. The use of recommended communicative strategies varies. Inconsequent communicative structures lead to delayed or even lack of activity that may affect patient safety in critical situations. Conclusion: By making use of discourse analytical tools from sociology and applied linguistics, focal themes are developed to identify critical moments in the interaction as well as good practice both during simulation and in real life.

• Kønig, Rolf; Trønnes, Håkon; Gundrosen, Stine & Aadahl, Petter (2011). A 3 step model for difficult airway management training. Show summary

  Practising intubation failure situations in a safe environment is necessary, and led to the development of a 3 step model for difficult airway management training. This includes a 3 hour session with 1) Theoretical introduction from an experienced senior anaesthesiologist, 2) Skills training and 3) Full scale simulation where 1 anaesthesiologist and 2 nurses trained together. During a 20 week period, we had 31 anaesthesiologists and 71 nurses trained. The training was feasible and was perceived as useful.

• Mohn, Hilde Stuedahl; Dalen, Harald; Haugen, Herborg; Gundrosen, Stine & Aadahl, Petter (2011). On-site simulation in a delivery room - one standardized scenario and several hospitals. Show summary

  Common guidelines in delivery departments are important for patient care. The aim of this study was to establish standardized training using on-site simulation in all 8 hospitals in Central Norway. 256 persons participated in 4 of the 8 local hospitals over a period of 15 months. Moving the Medical Simulation Center to local hospitals makes training of common guidelines possible. Independent of hospital, the participants evaluated the simulation-training positive.

• Gundrosen, Stine; Lachmann, Sigrid & Aadahl, Petter (2011). On-site Simulation in the Intensive Care Unit (ICU) – A Model for Assessing Clinical Competence In Action. Show summary

  Patient safety and quality requires valid methods for performance assessment. Assessment of clinical competence is preferable performed in a real job situation. Critically ill patients are complex, and comparing quality of performance is difficult. The aim of this study was to develop a model for overall assessment of clinical competence using a human patient simulator in action and on-site.

• Mohn, Hilde Stuedahl; Gundrosen, Stine; Dalen, Harald & Aadahl, Petter (2010). Designing Scenarioes for Medical Simulation - Implementing Clinical Experience. Show summary

  Realistic scenarios are essential for the learning outcome in medical simulation. There are few published papers on how to make optimal scenarios. The aim of this study was to produce an interviewguide and apply this inventory on a group of midwives, nurses, obstetricians and neonatologists who has been involved in identical clinical situations.

• Dale, Ola & Aadahl, Petter (2010). Den drømmeløse søvnen. Gemini. ISSN 0802-085X. p. 40–41.
• Brønstad, Maria; Skjærvold, Nils Kristian; Uggen, Per Einar; Aadahl, Petter; Kidd, Mark & Gustafsson, Bjørn I [Show all 7 contributors for this article] (2010). Intestinal ischemia activates local production and secretion of serotonin from enterochromaffin cells that may trigger cascade reactions in remote organs.
• Dale, Ola; Nilsen, T; Bjorgaas, T; Borkamo, A & Aadahl, P (2008). The time course of exhaled ethane in six intensive care cases. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 52, p. 869–871. doi: 10.1111/j.1399-6576.2008.01623.x.
• Bjerkelund, Carl Eivind; Christensen, Per & Aadahl, Petter (2008). Vanskelig luftvei - Praktisk bronkoskopi anestesiologisk hverdag.
• Bjerkelund, Carl Eivind; Christensen, Per & Aadahl, Petter (2008). Vanskelig luftvei- Praktisk trening i perkutan trakeostomi m/fiberoptisk veiledning.
• Tyvold, Stig Sverre; Solligård, Erik; Lyng, Oddveig; Steinshamn, Sigurd Loe; Gunnes, Sigurd & Aadahl, Petter (2008). Microdialysis for continuously monitoring cytokines in bronchial epithelial lining fluid.
• Tyvold, Stig Sverre; Lyng, Oddveig; Steinshamn, Sigurd Loe; Gunnes, Sigurd; Solligård, Erik & Aadahl, Petter (2008). Early lung injury after intestinal ischemia reperfusion as mesaured by bronchial microdialysis of FITC-4.
• Bjerkelund, Carl Eivind; Christensen, Per & Aadahl, Petter (2008). Får ikke intubert eller ventilert: Hvilke nye algoritmer og hjelpemidler finnes?
• Aadahl, Petter (2008). Techniques for direct access to trachea on the neck.
• Skjærvold, Nils Kristian; Tyvold, Stig Sverre; Grønbech, Jon Erik; Espevik, Terje; Aadahl, Petter & Solligård, Erik (2008). Detection of cytokines in the intestinal lumen by microdialysis.
• Dale, Ola; Lund, T; Bergum, Hallgeir; Nilsen, Turid; Aadahl, Petter & Stenseth, R (2007). Serial samples of breath ethane can also be analyzed by gas-chromatography. Respiratory Medicine. ISSN 0954-6111. 101. doi: 10.1016/j.rmed.2006.11.021.
• Salvesen, Kjell Å; Gundrosen, Stine; Samuelsen, Petter; Tanemsmo, Torill Grande & Aadahl, Petter (2007). Teaching Clinical Competences - Skills training ("skillsdrill") and simulation (reflection).
• Solligård, Erik; Juel, Ingebjørg s.; Skogvoll, Eirik; Grønbech, Jon Erik & Aadahl, Petter (2007). Detection of intestinal dysfunction by microdialysis in experimental ischemia and reperfusion models.
• Tyvold, Stig Sverre; Solligård, Erik; Gunnes, Sigurd; Lyng, Oddveig; johannison, anders & Aadahl, Petter (2007). Mikrodialyse; en ny metode for kontinuerlig måling av cytokiner i lungene.
• Solligård, Erik; Juel, Ingebjørg s.; Spigset, Olav; Romundstad, Pål Richard; Grønbech, Jon Erik & Aadahl, Petter (2007). Gut luminal lactate reflects permeability of the intestinal mucosa after ischemia and reperfusion.
• Aadahl, Petter (2007). Dobbeltløp i spesialiseringen; både forskning og klinikk.
• Husby, Marit; Einvik, Steinar; Gundrosen, Stine; Tanemsmo, Torill Grande & Aadahl, Petter (2006). Medical simulation - A useful tool for Cardiac Life Support Instructors at Coronary Care Units to improve competence and motivation to instruct others. European Journal of Cardiovascular Nursing. ISSN 1474-5151. 5S1, p. 34–34. doi: 10.1016/j.ejcnurse.2006.03.001.
• Myhre, Hans Olav; Mårvik, Ronald; Skogås, Jan Gunnar; Ødegård, Asbjørn; Sund, Valborg & Eggen, Johannes [Show all 7 contributors for this article] (2006). Fremtidens operasjonsrom i Trondheim. Kirurgen. ISSN 1504-8888. p. 8–11.
• Aadahl, Petter (2006). Techniques for direct access to trachea on the neck.
• Tyvold, Stig Sverre; Gunnes, Sigurd; Lyng, Oddveig; Steinshamn, Sigurd Loe; Solligård, Erik & Aadahl, Petter (2006). Bronchial microdialysis: a method for monitoring the epithelial lining fluid.
• Husby, Marit; Einvik, Steinar; Gundrosen, Stine; Tanemsmo, Torill Grande & Aadahl, Petter (2006). Medical Simulation - A tool for Cardiac Life Support Instructors at the Coronary Care Unit to improve competence and motivation to instruct others.
• Åsheim, Per; Uggen, Per Einar; Aadahl, Petter & Spigset, Olav (2006). Kan peritoneum brukes til administrering av medikamenter og væsker?
• Uleberg, Oddvar; Vinjevoll, Ole Petter; Eriksson, Ulrika; Skogvoll, Eirik; Uggen, Per Einar & Aadahl, Petter (2006). Hvordan benyttes traumeteamet?
• Aadahl, Petter (2005). Medisinsk Simulering.
• Aadahl, Petter (2005). Medical Simulation.
• Tanemsmo, Torill Grande; Uleberg, Oddvar; Gundrosen, Stine; Husby, Marit I.; Einvik, Steinar & Aadahl, Petter (2005). Film om Medisinsk SimulatorSenter.
• Solligård, Erik; Gundrosen, Stine; Tanemsmo, Torill Grande & Aadahl, Petter (2005). Norwegian Team Visiting from St.Olav University Hospital in Trondheim. [Internet]. Department of Critical Care Medicine website.
• Aadahl, Petter & Solligård, Erik (2005). Øver seg på griser. [Newspaper]. Dagens medisin.
• Uleberg, Oddvar; Eriksson, Ulrika; Uggen, Per Einar; Aadahl, Petter & Skogvoll, Eirik (2005). Mortalitet og potensielt unngåelige dødsfall hos traumepasienter.
• Uleberg, Oddvar; Eriksson, Ulrika; Uggen, Per Einar; Aadahl, Petter & Skogvoll, Eirik (2005). Mortalitet og potensielt unngåelige dødsfall hos traumepasienter.
• Sellevold, Olav F Münter; Stenseth, Roar; Dragsund, Stein; Bjørngaard, Mads & Aadahl, Petter (2005). Kurs for spesialistkandidater - Hva får vi igjen?
• Gundrosen, Stine; Einvik, Steinar; Tanemsmo, Torill Grande & Aadahl, Petter (2005). Trening i medisinsk simulator.
• Gundrosen, Stine; Uleberg, Oddvar; Tanemsmo, Torill Grande; Einvik, Steinar; Aadahl, Petter & Williams, Inger [Show all 7 contributors for this article] (2005). Postgraduate training in emergency medicine, the need for both clinical skills training and simulation.
• Våpenstad, Cecilie; Aadahl, Petter; Hernes, Toril A. Nagelhus & Mårvik, Ronald (2019). Simulation-based Training and Assessment in Minimally Invasive Surgery - Exploration and Validation. NTNU. ISSN 978-82-326-4243-4. 2019(323).
• Thomassen, Gøril; Gundrosen, Stine; Aadahl, Petter & Wisborg, Torben (2019). Communication in Action. Talk-work relationship in knowledge-driven emergency team activities. NTNU.
• Jørgensen, Ingrid Berg; Aadahl, Petter & Krüger, Andreas (2016). The episodes of acute care – A prospective study of the emergency patients’ journey from the street to the intensive care unit. NTNU.
• Rimehaug, Audun Eskeland & Aadahl, Petter (2010). Utprøving av ultralyd til monitorering av blodstrøm i arteria carotis communis hos pasienter med ustabil hemodynanikk. NTNU.
• Karlsvik, Ann-Karoline & Aadahl, Petter (2010). "Hvordan gjøre det man ville ha gjort" Bruk av simulatortrening i akuttmedisinsk opplæring av medisinerstudenter i Trondheim. NTNU.

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