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1.
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2.
  • Bergqvist, David, et al. (författare)
  • Secondary aortoenteric fistula : changes from 1973 to 1993
  • 1996
  • Ingår i: European Journal of Vascular and Endovascular Surgery. - 1078-5884 .- 1532-2165. ; 11:4, s. 425-428
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To investigate a series of patients with secondary aortoenteric fistulas and compare it with a previous series (1985-93 vs. 1973-84). DESIGN: Retrospective study of medical records. SETTING: Sixteen vascular surgical centers in Sweden. PATIENTS: Twenty-seven patients were identified making an overall incidence of 0.5% of all aortoiliac operations. Among aneurysm patients the incidence was significantly lower than in the previous series. One patient record could not be identified. Fourteen primary operations were for aortic aneurysm, 12 for occlusive disease and one was an aortorenal vein bypass. RESULTS: Symptoms of the fistula occurred after a median interval of 90 months which is significantly later than the previous series (32 months; p<0.05). The commonest presentation was bleeding followed by septis. The median diagnostic delay was 10.5 days, which was significantly shorter than in the previous series. Most fistulas involved the duodenum (88%). One patient died before surgery. The postoperative mortality was 28%, significantly lower than in the previous series (58%) (p<0.05). At the end of follow up (median 43 months) significantly more patients were alive than in the previous series (42% vs 18%) (p<0.05). CONCLUSION: Over a 21 year period there seems to have been a decrease in the frequency of secondary aortoenteric fistulas after aneurysm surgery, a longer interval before they occur, a shorter diagnostic delay, and a better survival.
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  • Jönsson, Björn, et al. (författare)
  • Outcome of symptomatic leg ischaemia : four year morbidity and mortality in vadstena, Sweden
  • 1996
  • Ingår i: European Journal of Vascular and Endovascular Surgery. - 1078-5884 .- 1532-2165. ; 11:3, s. 315-232
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective:To quantify cardiovascular morbidity and mortality including the incidence of vascular surgery and amputations, among individuals with symptomatic leg ischaemia.Design:Prospective cohort study.Material:Inhabitants 50–89 years of age (n = 2784) of Vadstena community, Östergötland, Sweden, with 4 years of follow-up. 107 subjects with symptomatic leg ischaemia (SLI), selected by a postal questionnaire and ankle pressure measurements, and an age and sex matched control group of 214 individuals.Chief outcome measures:Cardiovascular morbidity and mortality, all cause mortality, surgical procedures for leg ischaemia, major amputations, ankle brachial pressure index.Main results:Age and sex adjusted all-cause mortality risk in the SLI-group was increased by 1.9. This was most prominent among men in their sixties and women in their seventies. Cardiovascular mortality was increased by 1.9 (95% confidence interval 1.1–3.3). Relative risks for acute myocardial infarction and cerebrovascular events were 2.4 (1.1–5.1) and 1.7 (0.9–3.2), respectively. The increase in age and sex adjusted incidence of primary reconstructive surgery during the first year after initial examination was 67-fold compared to the total population of Vadstena 50–89 years old, and 18-fold for the whole observation period, while the increase in risk for major amputation during the observation period was 12-fold. Median ankle brachial index improved significantly during follow-up among the individuals alive and not subjected to vascular surgery.Conclusions:Among the SLI-subjects identified in a general population, the overall risk for cardiovascular morbidity and mortality over 4 years was significantly increased compared to normals.
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5.
  • Karacagil, Sadettin, et al. (författare)
  • Composite polytetrafluoroethylene/vein bypass grafts : conventional distal vein segment of vein cuff?
  • 1996
  • Ingår i: European Journal of Vascular and Endovascular Surgery. - 1078-5884 .- 1532-2165. ; 12:3, s. 337-371
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To determine the current status of PTFE vein composite grafts, we reviewed our experience with 205 composite reconstructions and compared the results of conventional distal vein segment to that of distal vein cuff. DESIGN: Retrospective review. SETTING: Department of Surgery, University Hospital. PATIENTS AND METHODS: The series included 85 women and 102 men with a median age of 70. The indications for surgery were claudication in 30, rest pain in 71 and ulcer/gangrene in 103. The site of the distal anastomosis was the popliteal artery in 111 and crural artery in 94. The graft consisted of a proximal PTFE graft anastomosed to a distal segment of reversed saphenous vein in 169 or to a modified distal Miller cuff in 36 operations after 1992. RESULTS: Cumulative life table primary patency rates for the whole series at 12, 24 and 36 months were 39%, 32% and 25% respectively. Limbs with good run-off demonstrated significantly better patency rates compared to limbs with poor run-off (55% and 17% at 12 months, 35% and 11% at 36 months, p = 0.04). The patency rate of femorocrural grafts with poor run-off was only 4% at 12 months. The overall limb salvage rates at 12 and 36 months were 63% and 55%, respectively. Similar results were obtained in limbs with distal reversed vein segment and distal vein cuff. CONCLUSION: The results of this study suggest that for infrainguinal bypass grafting where the saphenous vein is unavailable, a composite PTFE-vein graft might be an acceptable alternative in limbs with good run-off. Although not a randomised study, the results using a distal reversed vein segment of a cuff were similar.
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  • Karacagil, Sadettin, et al. (författare)
  • The effect of postocclusion reactive hyperaemia, papaverine and nifedipine on duplex derived haemodynamic parameters of infrainguinal bypass grafts
  • 1995
  • Ingår i: European Journal of Vascular and Endovascular Surgery. - 1078-5884 .- 1532-2165. ; 9:1, s. 107-111
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: The aim of the present study was to analyse the effects of various vasodilating stimuli on postoperative infrainguinal graft haemodynamics. DESIGN: Duplex derived haemodynamic parameters of infrainguinal bypass grafts were measured at rest and after postocclusion reactive hyperaemia, intraarterial papaverine (40 mgm) injection and peroral nifedipine (10 mg) administration. SETTING: Department of Surgery, University Hospital. MATERIALS: Twenty-nine patients with infrainguinal bypass grafts were studied by Duplex scanner after a median of 25 months postoperatively. CHIEF OUTCOME MEASURES: Peak systolic velocity (PSV), mean velocity (MV) and volume flow (VF) were measured at rest and after various stimuli. MAIN RESULTS: VF at rest increased from 125 +/- 16 ml/min (mean +/- S.E.M.) to 271 +/- 26 ml/min after papaverine administration and to 205 +/- 19 ml/min during reactive hyperaemia (p < 0.001). PSV, MV and VF increased significantly during postocclusion reactive hyperaemia and papaverine injection. After nifedipine administration VF increased to 154 +/- 21 ml/min after 30 min (p < 0.001) and there was a significant increase in MV (p < 0.05). CONCLUSIONS: Duplex derived flow measurement of infrainguinal bypass grafts can evaluate graft and limb haemodynamics in the postoperative period. Pharmacological manipulations, such as vasodilation, can influence the physiological runoff with subsequent increase in volume flow through the graft.
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7.
  • Karacagil, Sadettin, et al. (författare)
  • Value of duplex scanning in evaluation of crural and foot arteries in limbs with severe lower limb ischaemia : a prospective comparison with angiography
  • 1996
  • Ingår i: European Journal of Vascular and Endovascular Surgery. - 1078-5884 .- 1532-2165. ; 12:3, s. 300-303
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To compare Duplex scanning with angiography for evaluation of crural and pedal arteries in limbs with lower limb ischaemia. DESIGN: The findings obtained during Duplex scanning and angiography were prospectively compared in a blinded manner. SETTING: Departments of Surgery, Diagnostic Radiology and Clinical Physiology, University Hospital. MATERIALS: Duplex scanning and selective angiography of femoropopliteal, crural and foot arteries were performed in 40 limbs (38 patients, 480 segments) with intermittent claudication (n = 6), rest pain (n = 13) and ulcer/gangrene (n = 19). Each arterial segment were graded into four categories: normal, < or = 50% diameter reduction, > 50% diameter reduction and occlusion. Pedal arteries were evaluated as patency or occlusion of dorsal pedal artery and plantar arch. Chief outcome measures: Accuracy (AC), sensitivity (SE), specificity (SP), positive predictive (PPV), negative predictive (NPV) and kappa values. MAIN RESULTS: The Duplex scanning of the tibioperoneal trunk, crural and pedal arteries had an accuracy of 80% (kappa = 0.6). The SE, SP, PPV and NPV values were 83%, 77%, 79% and 81%, respectively. The SP was relatively low for the peroneal artery (58%) compared to the others. CONCLUSIONS: The results demonstrate the feasibility and reliability of Duplex scanning in detecting crural and pedal artery lesions in lower limbs with severe ischaemia.
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8.
  • Ljungman, Christer, et al. (författare)
  • Amputation risk and survival after embolectomy for acute arterial ischaemia : Time trends in a defined Swedish population
  • 1996
  • Ingår i: European Journal of Vascular and Endovascular Surgery. - 1078-5884 .- 1532-2165. ; 11:2, s. 176-182
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To assess the outcome of embolectomy over an 19 year period. METHODS: Time trends in the outcome of acute arterial thrombo-embolectomy of the extremities were analysed in a population-based cohort of 1190 patients operated on between 1965-83. RESULTS: A total of 262 (22%) initial amputations were performed. The limb salvage rates at 5 years postoperatively were lower between 1975-79 (61%) than between 1965-69 (81%). A proportional hazards model revealed a relative hazard (RH) of amputation of 2.2 (95% confidence interval (CI) 1.3-3.3) for 1975-79 compared with 1965-69. Operation at any district hospital entailed a 70% higher risk of amputation (RH 1.7; 95% CI 1.3-2.5) compared with the University hospital. The relative survival rate at 5 years postoperatively decreased towards the end of the study period (33% between 1975-79 compared with 43% between 1965-69). Younger age-groups had a considerably lower risk of death in the University hospital compared with the county and district hospitals. CONCLUSIONS: Contrary to the results in other hospital based reports no improvement in amputation or survival rates since 1965 could be demonstrated in this large series with no patient selection.
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