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Träfflista för sökning "hsv:(MEDICAL AND HEALTH SCIENCES) hsv:(Clinical Medicine) hsv:(Surgery) ;pers:(Gunnarsson Ulf)"

Sökning: hsv:(MEDICAL AND HEALTH SCIENCES) hsv:(Clinical Medicine) hsv:(Surgery) > Gunnarsson Ulf

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1.
  • Laurell, Helena, et al. (författare)
  • Acute abdominal pain among elderly patients
  • 2006
  • Ingår i: Gerontology. - : S. Karger AG. - 0304-324X .- 1423-0003. ; 52:6, s. 339-344
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Diagnosis of acute abdominal pain in older persons is a challenge, with the age-related increase in concurrent diseases. In most western countries the number of elderly people is constantly rising, which means that an increasing proportion of patients admitted for abdominal pain at the emergency department are elderly. Objective: To characterize differences in clinical presentation and diagnostic accuracy between younger and more elderly patients with acute abdominal pain. Methods: Patients admitted to Mora Hospital with abdominal pain of up to seven days' duration were registered according to a detailed schedule. From 1st February 1997 to 1st June 2000, 557 patients aged 65-79 years and 274 patients aged ≥80 years were registered. Patients aged 20-64 years (n = 1,458) served as a control group. Results: A specific diagnosis, i.e. other than 'non-specific abdominal pain', was established in 76 and 78% of the patients aged 65-79 and ≥80 years respectively, and in 64% of those aged 20-64 (p < 0.001). Pain duration before admission increased with age (p < 0.003), as did frequency and duration of hospitalization (p < 0.0001). Hospital stay increased from 170 days per 100 emergency admissions in the control group to 320 and 458 days in the younger and older study groups, respectively. At the emergency department, older patients were more often misdiagnosed than control patients (52 vs. 45%; p = 0.002). At discharge the diagnosis was more accurate in the control group (86 vs. 77%; p < 0.0001). Hospital mortality was higher among older patients (23/831 vs. 2/1,458; p < 0.001). The admission-to-surgery interval was increased (1.8 vs. 0.9 days, p < 0.0001) in patients ≥65 years. Rebound tenderness (p < 0.0001), local rigidity (p = 0.003) and rectal tenderness (p = 0.004) were less common in the older than in the control patients with peritonitis. In patients ≥65 years, C-reactive protein did not differ between patients operated on and those not, contrary to the finding in patients <65 years (p<0.0001). Conclusion: Both the preliminary diagnosis at the emergency department and the discharge diagnosis were less reliable in elderly than in younger patients. Elderly patients more often had specific organic disease and arrived at the emergency department after a longer history of abdominal pain compared to younger patients.
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2.
  • Dominguez, Cecilia A., et al. (författare)
  • The DQB1*03:02 HLA haplotype is associated with increased risk of chronic pain after inguinal hernia surgery and lumbar disc herniation
  • 2013
  • Ingår i: Pain. - : Ovid Technologies (Wolters Kluwer Health). - 0304-3959 .- 1872-6623. ; 154:3, s. 427-433
  • Tidskriftsartikel (refereegranskat)abstract
    • Neuropathic pain conditions are common after nerve injuries and are suggested to be regulated in part by genetic factors. We have previously demonstrated a strong genetic influence of the rat major histocompatibility complex on development of neuropathic pain behavior after peripheral nerve injury. In order to study if the corresponding human leukocyte antigen complex (HLA) also influences susceptibility to pain, we performed an association study in patients that had undergone surgery for inguinal hernia (n = 189). One group had developed a chronic pain state following the surgical procedure, while the control group had undergone the same type of operation, without any persistent pain. HLA DRB1genotyping revealed a significantly increased proportion of patients in the pain group carrying DRB1*04 compared to patients in the pain-free group. Additional typing of the DQB1 gene further strengthened the association; carriers of the DQB1*03:02 allele together with DRB1*04 displayed an increased risk of postsurgery pain with an odds risk of 3.16 (1.61-6.22) compared to noncarriers. This finding was subsequently replicated in the clinical material of patients with lumbar disc herniation (n = 258), where carriers of the DQB1*03:02 allele displayed a slower recovery and increased pain. In conclusion, we here for the first time demonstrate that there is an HLA-dependent risk of developing pain after surgery or lumbar disc herniation; mediated by the DRB1*04 - DQB1*03:02 haplotype. Further experimental and clinical studies are needed to fine-map the HLA effect and to address underlying mechanisms.
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3.
  • Birgisson, H, et al. (författare)
  • Improved survival in cancer of the colon and rectum in Sweden.
  • 2005
  • Ingår i: European Journal of Surgical Oncology. - : Elsevier BV. - 0748-7983 .- 1532-2157. ; 31:8, s. 845-53
  • Tidskriftsartikel (refereegranskat)abstract
    • AIMS: To analyse time-trends in survival of patients with colon and rectal cancer in Sweden.PATIENTS AND METHODS: Data including all patients diagnosed with adenocarcinoma of the colon and rectum between 1960 and 1999, from the Swedish Cancer Registry, were analysed. The observed and relative survival rates were calculated according to the Hakulinen cohort method.RESULTS: Five-year relative survival rate for cancer of the colon improved significantly from 39.6% in 1960--1964 to 57.2% in 1995--1999 and for rectal cancer from 36.1 to 57.6%, respectively. Corresponding observed survival improved from 31.2 to 44.3% for colon cancer and from 28.4 to 45.4% for rectal cancer. The largest improvement of survival were seen during the later part of the period observed.CONCLUSION: The survival of patients with colon and rectal cancer in Sweden continues to improve, especially in rectal cancer, which now has a 5-year observed and relative survival rate comparable to that for colon cancer. The survival improvement in rectal cancer is probably a result of the implementation of total mesorectal excision and pre-operative radiotherapy.
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4.
  • Birgisson, H, et al. (författare)
  • Late gastrointestinal disorders after rectal cancer surgery with and without preoperative radiation therapy
  • 2008
  • Ingår i: British Journal of Surgery. - : Oxford University Press (OUP). - 0007-1323 .- 1365-2168. ; 95:2, s. 206-13
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The aim of the study was to analyse late gastrointestinal disorders necessitating hospital admission following rectal cancer surgery and to determine their relationship to preoperative radiation therapy. METHODS: Curatively treated patients participating in the Swedish Rectal Cancer Trial during 1987-1990, randomized to preoperative irradiation (454 patients) or surgery alone (454), were matched against the Swedish Hospital Discharge Registry. Hospital records for patients admitted with gastrointestinal diagnoses were reviewed. RESULTS: Irradiated patients had an increased relative risk (RR) of late small bowel obstruction (RR 2.49 (95 per cent confidence interval (c.i.) 1.48 to 4.19)) and abdominal pain (RR 2.09 (95 per cent c.i. 1.03 to 4.24)) compared with patients treated by surgery alone. The risk of late small bowel obstruction requiring surgery was greatly increased (RR 7.42 (95 per cent c.i. 2.23 to 24.66)). Irradiated patients with postoperative anastomotic leakage were at increased risk for late small bowel obstruction (RR 2.99 (95 per cent c.i. 1.07 to 8.31)). The risk of small bowel obstruction was also related to the radiation technique and energy used. CONCLUSION: Small bowel obstruction is more common in patients with rectal cancer treated with preoperative radiation therapy.
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5.
  • Brännström, Fredrik, et al. (författare)
  • Surgeon and hospital-related risk factors in colorectal cancer surgery
  • 2011
  • Ingår i: Colorectal Disease. - : Wiley-Blackwell. - 1462-8910 .- 1463-1318. ; 13:12, s. 1370-1376
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: The aim of this study was to identify surgeon and hospital-related factors in a well-defined population-based cohort; the results of this study could possibly be used to improve outcome in colorectal cancer.METHOD: Data from the colonic (1997-2006) and rectal (1995-2006) cancer registers of the Uppsala/Örebro Regional Oncology Centre were used to assess 1697 patients with rectal and 2692 with colonic cancer. Putative risk factors and their impact on long-term survival were evaluated using the Cox proportional hazard model.RESULTS: The degree of specialization of the operating surgeon had no significant effect on long-term survival. When comparing the surgeons with the highest degree of specialization, noncolorectal surgeons demonstrated a slightly lower long-term survival for rectal cancer stage I and II (HR, 2.03; 95% CI, 1.05-3.92). Surgeons with a high case-load were not associated with better survival in any analysis model. Regional hospitals had a lower survival rate for rectal cancer stage III surgery (HR, 1.47; 95% CI, 1.08-2.00).CONCLUSION: Degree of specialization, surgeon case-load and hospital category could not be identified as important factors when determining outcome in colorectal cancer surgery in this study.
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6.
  • Jestin, P, et al. (författare)
  • Elective surgery for colorectal cancer in a defined Swedish population.
  • 2004
  • Ingår i: European Journal of Surgical Oncology. - : Elsevier BV. - 0748-7983 .- 1532-2157. ; 30:1, s. 26-33
  • Tidskriftsartikel (refereegranskat)abstract
    • AIMS: The aim of this study was to describe variability in compliance to clinical guidelines in colorectal cancer surgery related to hospital structure.METHODS: All patients registered in the databases of the Regional Oncologic Centre, operated upon electively for colon cancer between the start of the register in 1997 until 2000 (n=1771) and for rectal cancer between the start of the register in 1995 until 2000 (n=1841) were selected for analysis.RESULTS: There was no difference in 5-year survival rate between colon and rectal cancer (mean follow-up 2.6 and 3.0 years, respectively; p=0.22). There was a significant difference in frequency of preoperative liver scan depending on hospital category with an increase in colon cancer from 39 to 46% (p=0.02) and in rectal cancer from 42 to 64% (p<0.001). For colon cancer there was no difference, according to hospital category, in quotient sigmoid and high anterior resection to left-sided resection. Furthermore, high anterior resection was more common at university and general district hospitals (8%) compared with district hospitals (4%) (p=0.01). Sphincter-saving surgery was more common at university hospitals and district general hospitals than at district hospitals (low anterior/abdomino-perineal resection quotients 2.3, 2.4 and 1.6, respectively; p<0.001).CONCLUSIONS: Population-based audit forms an appropriate and valuable basis for quality assurance projects. In addition to describing compliance to guidelines and pointing to process steps that can be improved, such investigations may also indicate changes due to scientific development. Linked to case-costing data, such results may form an important basis for decisions about modifications in health care.
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7.
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8.
  • Samuelsson, K. S., et al. (författare)
  • Inappropriate drug use in elderly patients is associated with prolonged hospital stay and increased postoperative mortality after colorectal cancer surgery : a population-based study
  • 2016
  • Ingår i: Colorectal Disease. - : Wiley. - 1462-8910 .- 1463-1318. ; 18:2, s. 155-162
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim The study aimed to investigate whether continuing potentially inappropriate medication (PIM) is associated with length of hospital stay (LOS) and postoperative mortality in elderly people undergoing colorectal cancer surgery.Method The Swedish National Colorectal Cancer Register and the Swedish Prescribed Drug Register provided matched data on 7279 patients aged 75 years or more who had undergone bowel resection for colorectal cancer between 2007 and 2010. Patients were divided into two groups depending on whether or not they were taking PIM at the time of surgery. The primary efficacy variables were the LOS and 30-day postoperative mortality.Results Of the 7279 patients, 22.5% (1641) of the patients were exposed to at least one PIM and the total number of drugs taken in this group was six, compared with three in the non-PIM group (P<0.001). Postoperative mortality was higher in the PIM group (7.1% vs 4.5%, P<0.001), and LOS was longer (10days vs 9, P=0.001). When adjusted for independent predictors, the differences in LOS (odds ratio 1.14; 95% confidence interval 1.00-1.29, P=0.046) and postoperative mortality (odds ratio 1.43; 95% confidence interval 1.11-1.85, P=0.006) remained significant.Conclusion The use of PIM prior to surgery is associated with increased postoperative mortality and prolonged hospital stay. Although no causal relationship is proved, the results add a further aspect to preoperative optimization of elderly patients about to have major colorectal surgery.What does this paper add to the literature? The study shows an association between the exposure to potentially inappropriate medication and increased length of stay and postoperative mortality in elderly patients undergoing colorectal cancer surgery. The finding adds an additional factor to take into account during the preoperative optimization of elderly people.
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9.
  • Winsnes, Annika, et al. (författare)
  • Full-thickness skin grafts to reinforce the abdominal wall: a cross-sectional histological study comparing intra- and extraperitoneal onlay positions in mice
  • 2022
  • Ingår i: Journal of wound care. - : Mark Allen Group. - 0969-0700 .- 2052-2916. ; 31:1, s. 48-55
  • Tidskriftsartikel (refereegranskat)abstract
    • INTRODUCTION: In the repair of complex abdominal wall hernia, there can be a strong preference to avoid synthetic or biological implants as reinforcement material. Autologous full-thickness skin grafts (FTSG) have shown promising results. However, there are few clinical data on the use of FTSG in an intraperitoneal position and rudimentary knowledge about postoperative histological appearance of tissue remodelling and repair. OBJECTIVE: To investigate the histological appearance of FTSG in the intraperitoneal onlay mesh (IPOM) position. METHODS: Isogeneic FTSG was positioned in the IPOM (10 mice) and the onlay position (10 mice). After eight weeks, tissues were harvested for histological analysis. Tissue structure, inflammation and cell survival were investigated with histological and immunohistochemical staining. RESULTS: Morphology was similar in both positions. Luciferase staining indicated both onlay and IPOM graft cell survival, with microvascular networks present. In both positions, FTSG showed ongoing tissue remodelling processes and cystic formations containing hair and epidermis. Low-grade acute phase and chronic inflammation were present. Integration was observed in 50% of the mice with similar appearances in IPOM and onlay grafts. CONCLUSION: FTSG is tolerated, with comparable results either inside or outside the abdominal cavity, and in line with historic histological evaluations. The results suggest further research on FTSG as a potential future reinforcement material in selected cases of complex abdominal wall hernia repair.
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10.
  • Brännström, Fredrik, et al. (författare)
  • Risk Factors for Local Recurrence after Emergency Resection for Colon Cancer : Scenario in Sweden
  • 2016
  • Ingår i: Digestive Surgery. - : S. Karger AG. - 0253-4886 .- 1421-9883. ; 33:6, s. 503-508
  • Tidskriftsartikel (refereegranskat)abstract
    • Background/Aims: Patients undergoing emergency resection for colon cancer have a worse outcome both in terms of short-and long-term survival than those having elective surgery. The aim of this population-based study was to determine factors associated with increased risk for local recurrence following emergency resection. Methods: The Stockholm-Gotland Healthcare Region Colon Cancer Register was used to identify all colon cancer patients who had undergone emergency colon resection with curative intent in that region 1997-2007. Patient records were scrutinised to obtain any missing information. The influence of the following factors was assessed: indication for emergency resection; time between admission and surgery; surgery daytime or at night; American Association of Anesthesiologists score; volume of blood lost; and T- and N-stage. Our endpoint was loco-regional recurrence. Results: Apart from stage, perforation as indication for emergency surgery was the only factor that influenced the risk for local recurrence (hazard ratio 1.96; 95% CI 1.12-3.43). Conclusion: In this study, the only factor associated with local recurrence after emergency resection for colon cancer was preoperative perforation. This implies that changes in our current management algorithm would be unlikely to lead to improvement. Efforts should therefore concentrate on reducing the proportion of patients operated on an emergency basis.
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