Hans-Olaf Johannessen

Author information from the last article

Seksjon før øvre gastrokirurgi

Avdeling for gastro- og barnekirurgi

Oslo universitetssykehus, Ullevål

Han har bidratt i analyse, tolkning, revisjon og godkjenning av manus.

Hans-Olaf Johannessen er dr.med., spesialist i gastroenterologisk kirurgi, overlege og seksjonsleder/fagansvarlig.

Articles by Hans-Olaf Johannessen

Resection for oesophageal cancer – complications and survival

Marie Sæthre Grøtting,
Else Marit Løberg,
Hans-Olaf Johannessen,
Egil Johnson

24.05.2016: Oesophageal cancer is a relatively rare form of cancer, but the incidence is increasing in Norway and other Western countries. In 2014, 289 new cases (220 men) were registered in Norway. The incidence varies considerably from country to country, and in Norway (men 9.2, women 2.5 per 100 000) it is...

Surgical treatment of epiphrenic oesophageal diverticulum

Tobias Hauge,
Egil Johnson,
Olav Sandstad,
Hans-Olaf Johannessen,
Erik Trondsen

27.05.2014: An epiphrenic oesophageal diverticulum develops as the result of increased pressure in the oesophageal wall (pulsion diverticulum). The diverticulum is located in the distal 10 cm of the oesophagus, with herniation of mucosa and submucosa through the muscularis propria, usually towards the right in...