| Epinephrine markedly improves thoracic epidural analgesia produced by a small-dose infusion of ropivacaine, fentanyl, and epinephrine after major thoracic or abdominal surgery … G Niemi, H Breivik Anesthesia & Analgesia 94 (6), 1598-1605, 2002 | 184 | 2002 |
| Adrenaline markedly improves thoracic epidural analgesia produced by a low‐dose infusion of bupivacaine, fentanyl and adrenaline after major surgery: a randomised, double‐blind … G Niemi, H Breivik Acta Anaesthesiologica Scandinavica 42 (8), 897-909, 1998 | 183 | 1998 |
| Methylprednisolone intravenously 1 day after surgery has sustained analgesic and opioid‐sparing effects L Romundstad, H Breivik, G Niemi, A Helle, A Stubhaug Acta anaesthesiologica scandinavica 48 (10), 1223-1231, 2004 | 145 | 2004 |
| The minimally effective concentration of adrenaline in a low‐concentration thoracic epidural analgesic infusion of bupivacaine, fentanyl and adrenaline after major surgery A … G Niemi, H Breivik Acta anaesthesiologica scandinavica 47 (4), 439-450, 2003 | 132 | 2003 |
| The Shamrock lumbar plexus block: a dose-finding study AR Sauter, K Ullensvang, G Niemi, HT Lorentzen, TF Bendtsen, ... European Journal of Anaesthesiology| EJA 32 (11), 764-770, 2015 | 86 | 2015 |
| Advantages and disadvantages of adrenaline in regional anaesthesia G Niemi Best Practice & Research Clinical Anaesthesiology 19 (2), 229-245, 2005 | 79 | 2005 |
| Epidural fentanyl markedly improves thoracic epidural analgesia in a low‐dose infusion of bupivacaine, adrenaline and fentanyl: A randomized, double‐blind crossover study with … G Niemi, H Breivik Acta anaesthesiologica scandinavica 45 (2), 221-232, 2001 | 76 | 2001 |
| 6 Optimal epidural analgesia: importance of drug combinations and correct segmental site of injection H Breivik, G Niemi, H Haugtomt, H Högström Baillière's clinical anaesthesiology 9 (3), 493-512, 1995 | 56 | 1995 |
| Adding propacetamol to ketorolac increases the tolerance to painful pressure L Romundstad, A Stubhaug, G Niemi, LA Rosseland, H Breivik European Journal of Pain 10 (3), 177-183, 2006 | 48 | 2006 |
| 2 Safe and effective post-operative pain relief: introduction and continuous quality-improvement of comprehensive post-operative pain management programmes H Breivik, H Högström, G Niemi, B Stalder, S Hofer, B Fjellstad, ... Baillière's clinical anaesthesiology 9 (3), 423-460, 1995 | 45 | 1995 |
| How to implement an acute postoperative pain service: an update H Breivik, M Curatolo, G Niemi, H Haugtomt, G Kvarstein, L Romundstad, ... Elsevier, 2007 | 30 | 2007 |
| Adenosine-assisted clipping of intracranial aneurysms TR Meling, L Romundstad, G Niemi, J Narum, PK Eide, AG Sorteberg, ... Neurosurgical review 41, 585-592, 2018 | 26 | 2018 |
| Stability of an epidural analgesic solution containing adrenaline, bupivacaine and fentanyl I Kjønniksen, J Brustugun, G Niemi, H Breivik, E Anderssen, W Klem Acta anaesthesiologica scandinavica 44 (7), 864-867, 2000 | 24 | 2000 |
| Pain relief with paravertebral blocks or epidural analgesia? Those who do not know the history of paravertebral blocks are condemned to rediscover the complications G Niemi, H Breivik Scandinavian Journal of Pain 1 (1), 3-4, 2010 | 15 | 2010 |
| Optimizing postoperative epidural analgesia G Niemi Oslo: University of Oslo, 2004 | 11 | 2004 |
| Postoperative pain relief with balanced epidural analgesia on surgical wards G Niemi, H Breivik Scandinavian Association for the Study of Pain 18th annual meeting, 1994 | 7 | 1994 |
| Liberal long‐term opioid prescription–more pain than gain? L Romundstad, G Niemi Acta Anaesthesiologica Scandinavica 60 (5), 555-559, 2016 | 5 | 2016 |
| Thoracic epidural fentanyl has spinal cord analgesic effects G Niemi, H Breivik Acta Anaesthesiologica Scandinavica 57 (9), 1089-1091, 2013 | 5 | 2013 |
| Minimally effective concentration of epinephrine in a low-concenration thoracic epidural of bupivacaine, fentanyl and epinephrine after major surgery G Niemi, H Breivik Acta Anestesiol. Scand, 1-12, 2003 | 2 | 2003 |
| Does adrenaline improve epidural bupivacaine and fentanyl analgesia after abdominal surgery? H Breivik, G Niemi Anaesthesia and Intensive Care 29 (4), 436, 2001 | 2 | 2001 |
