Gjermund Johnsen
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Explore the profile of Gjermund Johnsen including associated specialties, affiliations and a list of published articles.
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Articles
29
Citations
147
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Recent Articles
1.
Barkhall E, Tro J, Sandvik J, Nymo S, Kulseng B, Johnsen G, et al.
Obes Surg
. 2025 Jan;
35(2):441-449.
PMID: 39812931
Background: Several studies have documented a beneficial short-term effect on lipid profile after Roux-en-Y gastric bypass (RYGB), but there is limited data on long-term changes. Objectives: To describe long-term (> ...
2.
Brudeseth S, Sandvik J, Nymo S, Johnsen G, Kulseng B, Hoff D, et al.
Obes Surg
. 2024 May;
34(7):2562-2569.
PMID: 38814414
Purpose: The aim was to describe the frequency of bradycardia 12 years after Roux-en-Y gastric bypass (RYGB), relations to weight loss, patient characteristics, and the clinical impact. Materials And Methods:...
3.
Sand T, Grotting A, Uglem M, Augestad N, Johnsen G, Sandvik J
Clin Neurophysiol Pract
. 2024 Apr;
9:130-137.
PMID: 38618240
Objective: We searched for long-term peripheral nerve complications 10-15 years after Roux-en-Y gastric bypass surgery (RYGB), using a comprehensive nerve conduction study (NCS) protocol. Methods: Patients (n = 175, mean...
4.
Bjerkan K, Sandvik J, Nymo S, Johnsen G, Hyldmo A, Kulseng B, et al.
Obes Res Clin Pract
. 2024 Feb;
18(1):9-14.
PMID: 38402034
Background: Abdominal pain and postbariatric hypoglycemia (PBH) are common after bariatric surgery. Objectives: This study aimed to explore the potential relationship between abdominal pain, gastrointestinal symptoms, and PBH more than...
5.
Hedberg J, Sundbom M, Edholm D, Aahlin E, Szabo E, Lindberg F, et al.
Dis Esophagus
. 2024 Feb;
37(6).
PMID: 38366900
Esophagectomy is a complex and complication laden procedure. Despite centralization, variations in perioparative strategies reflect a paucity of evidence regarding optimal routines. The use of nasogastric (NG) tubes post esophagectomy...
6.
Nymo S, Lundanes J, Eriksen K, Aukan M, Rehfeld J, Holst J, et al.
Obes Surg
. 2023 Dec;
34(2):592-601.
PMID: 38159146
Purpose: Bariatric surgery remains the most efficient treatment to achieve a sustained weight loss. However, a large proportion of patients experience suboptimal weight loss (SWL). The exact mechanisms involved remain...
7.
Softeland E, Aasebostol A, Johnsen G, Bringeland E
Scand J Gastroenterol
. 2023 Sep;
59(2):218-224.
PMID: 37728323
Background: Zenker's diverticulum is a false diverticulum arising in the oesophago-pharyngeal junction. It may cause symptoms like dysphagia and regurgitation. In Central Norway, treatment is centralized to St. Olavs hospital,...
8.
Bjerkan K, Sandvik J, Nymo S, Graeslie H, Johnsen G, Marvik R, et al.
Obes Surg
. 2023 Aug;
33(10):3178-3185.
PMID: 37635164
Purpose: Micronutrient deficiencies are common after Roux-en-Y gastric bypass (RYGB). This study explores whether vitamin and mineral deficiency was associated with adherence to recommended supplementation 12 years after RYGB. Materials...
9.
Belgau I, Johnsen G, Graeslie H, Marvik R, Nymo S, Bjerkan K, et al.
Surg Endosc
. 2022 Oct;
37(2):1349-1356.
PMID: 36203112
Background: Symptomatic cholelithiasis requiring treatment is a known side effect after Roux-en-Y gastric bypass (RYGB), but reported rates vary greatly. The objectives for this study were to evaluate the long-term...
10.
Sandvik E, Aasarod K, Johnsen G, Hoff D, Kulseng B, Hyldmo A, et al.
J Clin Med
. 2022 Aug;
11(16).
PMID: 36013149
Severe obesity is a strong risk factor for non-alcoholic fatty liver disease (NAFLD). Roux-en-Y gastric bypass (RYGB) surgery effectively induces weight loss, but few studies have described the long-term effects...