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Dive into the research topics where Dyre Kleive is active.

Publication


Featured researches published by Dyre Kleive.


British Journal of Surgery | 2017

Trends in indications, complications and outcomes for venous resection during pancreatoduodenectomy

Dyre Kleive; Mushegh A. Sahakyan; Audun Elnaes Berstad; Caroline S. Verbeke; Ivar P. Gladhaug; Bjørn Edwin; Pål-Dag Line; Knut Jørgen Labori

Pancreatoduodenectomy with superior mesenteric–portal vein resection has become a common procedure in pancreatic surgery. The aim of this study was to compare standard pancreatoduodenectomy with pancreatoduodenectomy plus venous resection at a high‐volume centre, and to examine trends in management and outcome over a decade for the latter procedure.


Surgery | 2017

Laparoscopic distal pancreatectomy for pancreatic ductal adenocarcinoma: Long-term oncologic outcomes after standard resection

Mushegh A. Sahakyan; Song Cheol Kim; Dyre Kleive; Airazat M. Kazaryan; Ki Byung Song; Dejan Ignjatovic; Trond Buanes; Bård I. Røsok; Knut Jørgen Labori; Bjørn Edwin

Background. Surgical resection is the only curative option in patients with pancreatic ductal adenocarcinoma. Little is known about the oncologic outcomes of laparoscopic distal pancreatectomy. This bi‐institutional study aimed to examine the long‐term oncologic results of standard laparoscopic distal pancreatectomy in a large cohort of patients with pancreatic ductal adenocarcinoma. Methods. From January 2002 to March 2016, 207 patients underwent standard laparoscopic distal pancreatectomy for pancreatic ductal adenocarcinoma at Oslo University Hospital‐Rikshospitalet (Oslo, Norway) and Asan Medical Centre (Seoul, Republic of Korea). After the exclusion criteria were applied (distant metastases at operation, conversion to an open operation, loss to follow‐up), 186 patients were eligible for the analysis. Perioperative and oncologic variables were analyzed for association with recurrence and survival. Results. Median overall and recurrence‐free survivals were 32 and 16 months, while 5‐year overall and recurrence‐free survival rates were estimated to be 38.2% and 35.9%, respectively. Ninety‐six (52%) patients developed recurrence: 56 (30%) extrapancreatic, 27 (15%) locoregional, and 13 (7%) combined locoregional and extrapancreatic. Thirty‐seven (19.9%) patients had early recurrence (within 6 months of operation). In the multivariable analysis, tumor size >3 cm and no adjuvant chemotherapy were associated with early recurrence (P = .017 and P = .015, respectively). The Cox regression model showed that tumor size >3 cm and lymphovascular invasion were independent predictors of decreased recurrence‐free and overall survival. Conclusion. Standard laparoscopic distal pancreatectomy is associated with satisfactory long‐term oncologic outcomes in patients with pancreatic ductal adenocarcinoma. Several risk factors, such as tumor size >3 cm, no adjuvant chemotherapy, and lymphovascular invasion, are linked to poor prognosis after standard laparoscopic distal pancreatectomy.


Hpb | 2018

The effect of centralization on short term outcomes of pancreatoduodenectomy in a universal health care system

Linn Såve Nymo; Kjetil Søreide; Dyre Kleive; Frank Olsen; Kristoffer Lassen

BACKGROUND Centralization of pancreatic resections is advocated due to a volume-outcome association. Pancreatic surgery is in Norway currently performed only in five teaching hospitals. The aim was to describe the short-term outcomes after pancreatoduodenectomy (PD) within the current organizational model and to assess for regional disparities. METHODS All patients who underwent PD in Norway between 2012 and 2016 were identified. Mortality (90 days) and relaparotomy (30 days) were assessed for predictors including demographic data and multi-visceral or vascular resection. Aggregated length-of-stay and national and regional incidences of the procedure were also analysed. RESULTS A total of 930 patients underwent PD during the study period. In-hospital mortality occurred in 20 patients (2%) and 34 patients (4%) died within 90 days. Male gender, age, multi-visceral resection and relaparotomy were independent predictors of 90-day mortality. Some 131 patients (14%) had a relaparotomy, with male gender and multi-visceral resection as independent predictors. There was no difference between regions in procedure incidence or 90-day mortality. There was a disparity within the regions in the use of vascular resection (p = 0.021). CONCLUSION The short-term outcomes after PD in Norway are acceptable and the 90-day mortality rate is low. The outcomes may reflect centralization of pancreatic surgery.


Surgery | 2016

Impact of obesity on surgical outcomes of laparoscopic distal pancreatectomy: A Norwegian single-center study.

Mushegh A. Sahakyan; Bård I. Røsok; Airazat M. Kazaryan; Leonid Barkhatov; Xiaoran Lai; Dyre Kleive; Dejan Ignjatovic; Knut Jørgen Labori; Bjørn Edwin


Hpb | 2016

Cold-stored cadaveric venous allograft for superior mesenteric/portal vein reconstruction during pancreatic surgery

Dyre Kleive; Audun Elnaes Berstad; Caroline S. Verbeke; Sven Petter Haugvik; Ivar P. Gladhaug; Pål-Dag Line; Knut Jørgen Labori


Journal of vascular surgery. Venous and lymphatic disorders | 2018

Portal vein reconstruction using primary anastomosis or venous interposition allograft in pancreatic surgery

Dyre Kleive; Audun Elnaes Berstad; Mushegh A. Sahakyan; Caroline S. Verbeke; Christian Naper; Sven Petter Haugvik; Ivar P. Gladhaug; Pål-Dag Line; Knut Jørgen Labori


Langenbeck's Archives of Surgery | 2018

Incidence and management of arterial injuries during pancreatectomy

Dyre Kleive; Mushegh A. Sahakyan; Ammar Khan; Pål-Dag Line; Knut Jørgen Labori


Journal of The American College of Surgeons | 2018

The European Experience in Laparoscopic Pancreatic Resections

Mushegh A. Sahakyan; Bård I. Røsok; Dyre Kleive; Åsmund A. Fretland; Airazat M. Kazaryan; Knut Jørgen Labori; Bjørn Edwin


Hpb | 2018

Pancreatoduodenectomy with venous resection for pancreatic cancer does not improve the R0-rate

Dyre Kleive; Knut Jørgen Labori; Pål-Dag Line; Ivar P. Gladhaug; Caroline S. Verbeke


Hpb | 2018

Contemporary outcomes after pancreatoduodenectomy in a complete national cohort: short-term morbidity and mortality within a universal health care system

Linn Såve Nymo; Kjetil Søreide; Frank Olsen; Dyre Kleive; Kristoffer Lassen

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Pål-Dag Line

Oslo University Hospital

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Bjørn Edwin

Oslo University Hospital

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Frank Olsen

Northern Norway Regional Health Authority

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