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1.
Arch Dis Child ; 2022 Jul 20.
Article in English | MEDLINE | ID: mdl-35858775

ABSTRACT

OBJECTIVE: To understand community seroprevalence of SARS-CoV-2 in children and adolescents. This is vital to understanding the susceptibility of this cohort to COVID-19 and to inform public health policy for disease control such as immunisation. DESIGN: We conducted a community-based cross-sectional seroprevalence study in participants aged 0-18 years old recruiting from seven regions in England between October 2019 and June 2021 and collecting extensive demographic and symptom data. Serum samples were tested for antibodies against SARS-CoV-2 spike and nucleocapsid proteins using Roche assays processed at UK Health Security Agency laboratories. Prevalence estimates were calculated for six time periods and were standardised by age group, ethnicity and National Health Service region. RESULTS: Post-first wave (June-August 2020), the (anti-spike IgG) adjusted seroprevalence was 5.2%, varying from 0.9% (participants 10-14 years old) to 9.5% (participants 5-9 years old). By April-June 2021, this had increased to 19.9%, varying from 13.9% (participants 0-4 years old) to 32.7% (participants 15-18 years old). Minority ethnic groups had higher risk of SARS-CoV-2 seropositivity than white participants (OR 1.4, 95% CI 1.0 to 2.0), after adjusting for sex, age, region, time period, deprivation and urban/rural geography. In children <10 years, there were no symptoms or symptom clusters that reliably predicted seropositivity. Overall, 48% of seropositive participants with complete questionnaire data recalled no symptoms between February 2020 and their study visit. CONCLUSIONS: Approximately one-third of participants aged 15-18 years old had evidence of antibodies against SARS-CoV-2 prior to the introduction of widespread vaccination. These data demonstrate that ethnic background is independently associated with risk of SARS-CoV-2 infection in children. TRIAL REGISTRATION NUMBER: NCT04061382.

2.
Eur J Vasc Endovasc Surg ; 61(2): 192-199, 2021 02.
Article in English | MEDLINE | ID: mdl-33594980

ABSTRACT

OBJECTIVE: The NHS Abdominal Aortic Aneurysm Screening Programme (NAAASP) has been implemented since 2013. Men with a large aneurysm >54 mm, either at first screen or during surveillance, are referred for intervention. The aim of the present study was to explore outcomes in these men and to see whether there was any regional variation in treatment rates and type of repair. METHODS: The study cohort included all men referred to a vascular network with a large abdominal aortic aneurysm (AAA). Basic demographic information, nurse assessment details, as well as outcome data were extracted from the national NAAASP IT system, AAA SMaRT, for analysis. RESULTS: Some 3 026 men were referred for possible intervention (48% first screen, 52% surveillance). Some 448 men (13.3%) either declined (63, 2.1%), or were turned down for early intervention for various reasons (385, 12.7%). Some 8% were declined for medical reasons (true turn down rate). Men referred from surveillance were older, and more likely not to have had elective surgery within three months (16.0 vs. 11.2%; HR 1.37, 95% CI 1.07-1.75, p = .011). Turn down rates did not vary among local programmes, when surveillance men were taken into account. Some 2 624 (87%) men had planned AAA repair, with a peri-operative mortality of 1.3%. Thirty day surgical mortality was lower after EVAR: 0.4% compared with 2.1% after open repair. The method of repair remained consistent year on year, with roughly equal numbers undergoing endovascular (50%) and open surgical repair (48%); 2% unknown. There was regional variation in the proportion treated by endovascular repair: from 20% to 97%. CONCLUSION: The turn down rate after referral for treatment with a screen detected AAA was low, but there remains considerable regional variation in the proportion undergoing endovascular repair. Procedures were undertaken with low peri-operative mortality.


Subject(s)
Aortic Aneurysm, Abdominal/surgery , Blood Vessel Prosthesis Implantation , Endovascular Procedures , Mass Screening , Adult , Aged , Aged, 80 and over , Aortic Aneurysm, Abdominal/diagnosis , Aortic Aneurysm, Abdominal/mortality , Blood Vessel Prosthesis Implantation/methods , Blood Vessel Prosthesis Implantation/mortality , Blood Vessel Prosthesis Implantation/statistics & numerical data , Endovascular Procedures/mortality , Endovascular Procedures/statistics & numerical data , England/epidemiology , Follow-Up Studies , Humans , Male , Middle Aged , Patient Acceptance of Health Care/statistics & numerical data , Patient Selection , Referral and Consultation/statistics & numerical data , State Medicine , Treatment Outcome
3.
N Engl J Med ; 381(10): 912-922, 2019 09 05.
Article in English | MEDLINE | ID: mdl-31483962

ABSTRACT

BACKGROUND: Endovenous laser ablation and ultrasound-guided foam sclerotherapy are recommended alternatives to surgery for the treatment of primary varicose veins, but their long-term comparative effectiveness remains uncertain. METHODS: In a randomized, controlled trial involving 798 participants with primary varicose veins at 11 centers in the United Kingdom, we compared the outcomes of laser ablation, foam sclerotherapy, and surgery. Primary outcomes at 5 years were disease-specific quality of life and generic quality of life, as well as cost-effectiveness based on models of expected costs and quality-adjusted life-years (QALYs) gained that used data on participants' treatment costs and scores on the EuroQol EQ-5D questionnaire. RESULTS: Quality-of-life questionnaires were completed by 595 (75%) of the 798 trial participants. After adjustment for baseline scores and other covariates, scores on the Aberdeen Varicose Vein Questionnaire (on which scores range from 0 to 100, with lower scores indicating a better quality of life) were lower among patients who underwent laser ablation or surgery than among those who underwent foam sclerotherapy (effect size [adjusted differences between groups] for laser ablation vs. foam sclerotherapy, -2.86; 95% confidence interval [CI], -4.49 to -1.22; P<0.001; and for surgery vs. foam sclerotherapy, -2.60; 95% CI, -3.99 to -1.22; P<0.001). Generic quality-of-life measures did not differ among treatment groups. At a threshold willingness-to-pay ratio of £20,000 ($28,433 in U.S. dollars) per QALY, 77.2% of the cost-effectiveness model iterations favored laser ablation. In a two-way comparison between foam sclerotherapy and surgery, 54.5% of the model iterations favored surgery. CONCLUSIONS: In a randomized trial of treatments for varicose veins, disease-specific quality of life 5 years after treatment was better after laser ablation or surgery than after foam sclerotherapy. The majority of the probabilistic cost-effectiveness model iterations favored laser ablation at a willingness-to-pay ratio of £20,000 ($28,433) per QALY. (Funded by the National Institute for Health Research; CLASS Current Controlled Trials number, ISRCTN51995477.).


Subject(s)
Endovascular Procedures , Laser Therapy , Quality of Life , Sclerotherapy , Varicose Veins/therapy , Adult , Cost-Benefit Analysis , Endovascular Procedures/economics , Female , Follow-Up Studies , Humans , Intention to Treat Analysis , Laser Therapy/economics , Male , Middle Aged , Quality-Adjusted Life Years , Sclerotherapy/economics , Sclerotherapy/methods , Surveys and Questionnaires , Treatment Outcome , Ultrasonography, Interventional , Varicose Veins/surgery
4.
Circulation ; 139(11): 1371-1380, 2019 03 12.
Article in English | MEDLINE | ID: mdl-30636430

ABSTRACT

BACKGROUND: Population screening for abdominal aortic aneurysm (AAA) has commenced in several countries, and has been shown to reduce AAA-related mortality by up to 50%. Most men who screen positive have an AAA <5.5 cm in diameter, the referral threshold for treatment, and are entered into an ultrasound surveillance program. This study aimed to determine the risk of ruptured AAA (rAAA) in men under surveillance. METHODS: Men in the National Health Service AAA Screening Programme who initially had a small (3-4.4 cm) or medium (4.5-5.4 cm) AAA were followed up. The screening program's database collected data on ultrasound AAA diameter measurements, dates of referral, and loss to follow-up. Local screening programs recorded adverse outcomes, including rAAA and death. Rupture and mortality rates were calculated by initial and final known AAA diameter. RESULTS: A total of 18 652 men were included (50 103 person-years of surveillance). Thirty-one men had rAAA during surveillance, of whom 29 died. Some 952 men died of other causes during surveillance, mainly cardiovascular complications (26.3%) and cancer (31.2%). The overall mortality rate was 1.96% per annum, similar for men with small and medium AAAs. The rAAA risk was 0.03% per annum (95% CI, 0.02%-0.05%) for men with small AAAs and 0.28% (0.17%-0.44%) for medium AAAs. The rAAA risk for men with AAAs just below the referral threshold (5.0-5.4 cm) was 0.40% (0.22%-0.73%). CONCLUSIONS: The risk of rAAA under surveillance is <0.5% per annum, even just below the present referral threshold of 5.5 cm, and only 0.4% of men under surveillance are estimated to rupture before referral. It can be concluded that men with small and medium screen-detected AAAs are safe provided they are enrolled in an intensive surveillance program, and that there is no evidence that the current referral threshold of 5.5 cm should be changed.


Subject(s)
Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Rupture/diagnostic imaging , Mass Screening/methods , Ultrasonography , Aged , Aortic Aneurysm, Abdominal/mortality , Aortic Rupture/mortality , Disease Progression , England/epidemiology , Humans , Male , Population Surveillance , Predictive Value of Tests , Prognosis , Risk Factors , Sex Factors , Time Factors
5.
J Med Screen ; 24(3): 166-168, 2017 09.
Article in English | MEDLINE | ID: mdl-28756762

ABSTRACT

Objectives To monitor the early effect of a national population screening programme for abdominal aortic aneurysm in 65-year-old men. Setting The study used national statistics for death rates from abdominal aortic aneurysm (Office of National Statistics) and hospital admission data in England (Hospital Episode Statistics). Methods Information concerning deaths from abdominal aortic aneurysm (ruptured and non-ruptured) (1999-2014) and hospital admissions for ruptured abdominal aortic aneurysm (2000-2015) was examined. Results The absolute number of deaths from abdominal aortic aneurysm in men and women aged 65 and over has decreased by around 30% from 2001 to 2014, but as the population has increased, the relative reduction was 45.6% and 40.0%, respectively. Some 65% of all abdominal aortic aneurysm deaths are in men aged over 65; women aged 65 and over account for around 31%. Deaths from ruptured abdominal aortic aneurysm in men aged 60-74 (the screened group) appear to be declining at the same rate as in men aged 75 and over. The relative decline in admissions to hospital with ruptured abdominal aortic aneurysm may be greater in men and women aged 60-74 (which contains the screened group of men), than those older, giving the first possible evidence that abdominal aortic aneurysm screening is having an effect. Conclusion The death rate from abdominal aortic aneurysm is declining rapidly in England. There is the first evidence that screening may be contributing to this reduction.


Subject(s)
Aortic Aneurysm, Abdominal/prevention & control , Aortic Rupture/prevention & control , Patient Education as Topic , Aged , Aged, 80 and over , Aortic Aneurysm, Abdominal/mortality , England/epidemiology , Female , Health Services for the Aged , Humans , Male , Mass Screening/methods , Middle Aged , Patient Admission/statistics & numerical data , Registries
6.
Vasc Endovascular Surg ; 50(6): 427-30, 2016 Aug.
Article in English | MEDLINE | ID: mdl-27334480

ABSTRACT

Treatment of juxtarenal abdominal aortic aneurysms (AAAs) remains challenging. A 79-year-old male who had infrarenal endovascular repair of abdominal aortic aneurysm (EVAR) 13 years previously presented with leaking juxtarenal AAA. Emergency fenestrated EVAR (FEVAR) was performed utilizing a stent graft designed and built for a different patient. Despite the need to embolize the celiac artery prior to covering it with the stent graft in order to achieve adequate proximal seal, the patient had uneventful recovery.


Subject(s)
Aortic Aneurysm, Abdominal/surgery , Aortic Rupture/surgery , Blood Vessel Prosthesis Implantation/instrumentation , Blood Vessel Prosthesis , Endovascular Procedures/instrumentation , Stents , Aged , Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Rupture/diagnostic imaging , Aortography/methods , Celiac Artery/diagnostic imaging , Computed Tomography Angiography , Embolization, Therapeutic , Emergencies , Humans , Male , Prosthesis Design , Treatment Outcome
7.
Phlebology ; 30(2 Suppl): 18-23, 2015 Nov.
Article in English | MEDLINE | ID: mdl-26556698

ABSTRACT

Foam sclerotherapy is a minimally invasive treatment for lower limb varicose veins. Current evidence indicates that its efficacy may not be as high as surgery or endovenous ablation. The minimally invasive nature of the treatment however means that it has a wide application, and it can be particularly useful in patients who are not suitable for other types of treatment. NICE guidelines recommend its use as a second line after endovenous ablation. Complication rates are low and most of these are of little clinical consequence.


Subject(s)
Sclerotherapy/adverse effects , Sclerotherapy/economics , Sclerotherapy/methods , Varicose Veins/therapy , Catheter Ablation , Cost-Benefit Analysis , Endovascular Procedures , Headache/etiology , Humans , Laser Therapy , Myocardial Infarction/etiology , Nervous System Diseases/etiology , Practice Guidelines as Topic , Pulmonary Embolism/etiology , Randomized Controlled Trials as Topic , Saphenous Vein/surgery , Sclerosing Solutions/therapeutic use , Sodium Tetradecyl Sulfate/chemistry , Surface-Active Agents/chemistry , Thrombophlebitis/etiology , Treatment Outcome , Varicose Veins/pathology , Venous Thrombosis/etiology
8.
Health Technol Assess ; 19(27): 1-342, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25858333

ABSTRACT

BACKGROUND: Foam sclerotherapy (foam) and endovenous laser ablation (EVLA) have emerged as alternative treatments to surgery for patients with varicose veins, but uncertainty exists regarding their effectiveness in the medium to longer term. OBJECTIVES: To assess the clinical effectiveness and cost-effectiveness of foam, EVLA and surgery for the treatment of varicose veins. DESIGN: A parallel-group randomised controlled trial (RCT) without blinding, and economic modelling evaluation. SETTING: Eleven UK specialist vascular centres. PARTICIPANTS: Seven hundred and ninety-eight patients with primary varicose veins (foam, n = 292; surgery, n = 294; EVLA, n = 212). INTERVENTIONS: Patients were randomised between all three treatment options (eight centres) or between foam and surgery (three centres). PRIMARY OUTCOME MEASURES: Disease-specific [Aberdeen Varicose Vein Questionnaire (AVVQ)] and generic [European Quality of Life-5 Dimensions (EQ-5D), Short Form questionnaire-36 items (SF-36) physical and mental component scores] quality of life (QoL) at 6 months. Cost-effectiveness as cost per quality-adjusted life-year (QALY) gained. SECONDARY OUTCOME MEASURES: Quality of life at 6 weeks; residual varicose veins; Venous Clinical Severity Score (VCSS); complication rates; return to normal activity; truncal vein ablation rates; and costs. RESULTS: The results appear generalisable in that participants' baseline characteristics (apart from a lower-than-expected proportion of females) and post-treatment improvement in outcomes were comparable with those in other RCTs. The health gain achieved in the AVVQ with foam was significantly lower than with surgery at 6 months [effect size -1.74, 95% confidence interval (CI) -2.97 to -0.50; p = 0.006], but was similar to that achieved with EVLA. The health gain in SF-36 mental component score for foam was worse than that for EVLA (effect size 1.54, 95% CI 0.01 to 3.06; p = 0.048) but similar to that for surgery. There were no differences in EQ-5D or SF-36 component scores in the surgery versus foam or surgery versus EVLA comparisons at 6 months. The trial-based cost-effectiveness analysis showed that, at 6 months, foam had the highest probability of being considered cost-effective at a ceiling willingness-to-pay ratio of £20,000 per QALY. EVLA was found to cost £26,107 per QALY gained versus foam, and was less costly and generated slightly more QALYs than surgery. Markov modelling using trial costs and the limited recurrence data available suggested that, at 5 years, EVLA had the highest probability (≈ 79%) of being cost-effective at conventional thresholds, followed by foam (≈ 17%) and surgery (≈ 5%). With regard to secondary outcomes, health gains at 6 weeks (p < 0.005) were greater for EVLA than for foam (EQ-5D, p = 0.004). There were fewer procedural complications in the EVLA group (1%) than after foam (7%) and surgery (8%) (p < 0.001). Participants returned to a wide range of behaviours more quickly following foam or EVLA than following surgery (p < 0.05). There were no differences in VCSS between the three treatments. Truncal ablation rates were higher for surgery (p < 0.001) and EVLA (p < 0.001) than for foam, and were similar for surgery and EVLA. CONCLUSIONS: Considerations of both the 6-month clinical outcomes and the estimated 5-year cost-effectiveness suggest that EVLA should be considered as the treatment of choice for suitable patients. FUTURE WORK: Five-year trial results are currently being evaluated to compare the cost-effectiveness of foam, surgery and EVLA, and to determine the recurrence rates following each treatment. This trial has highlighted the need for long-term outcome data from RCTs on QoL, recurrence rates and costs for foam sclerotherapy and other endovenous techniques compared against each other and against surgery. TRIAL REGISTRATION: Current Controlled Trials ISRCTN51995477. FUNDING: This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 19, No. 27. See the NIHR Journals Library website for further project information.


Subject(s)
Cost-Benefit Analysis , Laser Therapy , Outcome and Process Assessment, Health Care/statistics & numerical data , Quality-Adjusted Life Years , Sclerotherapy , Varicose Veins/therapy , Activities of Daily Living , Adolescent , Adult , Aged , Aged, 80 and over , Female , Health Expenditures/statistics & numerical data , Humans , Laser Therapy/adverse effects , Laser Therapy/economics , Laser Therapy/methods , Laser Therapy/statistics & numerical data , Male , Middle Aged , Outcome and Process Assessment, Health Care/economics , Recurrence , Sclerotherapy/adverse effects , Sclerotherapy/economics , Sclerotherapy/methods , Sclerotherapy/statistics & numerical data , Severity of Illness Index , State Medicine/economics , Technology Assessment, Biomedical , United Kingdom , Varicose Veins/economics , Varicose Veins/surgery , Young Adult
9.
N Engl J Med ; 371(13): 1218-27, 2014 Sep 25.
Article in English | MEDLINE | ID: mdl-25251616

ABSTRACT

BACKGROUND: Ultrasound-guided foam sclerotherapy and endovenous laser ablation are widely used alternatives to surgery for the treatment of varicose veins, but their comparative effectiveness and safety remain uncertain. METHODS: In a randomized trial involving 798 participants with primary varicose veins at 11 centers in the United Kingdom, we compared the outcomes of foam, laser, and surgical treatments. Primary outcomes at 6 months were disease-specific quality of life and generic quality of life, as measured on several scales. Secondary outcomes included complications and measures of clinical success. RESULTS: After adjustment for baseline scores and other covariates, the mean disease-specific quality of life was slightly worse after treatment with foam than after surgery (P=0.006) but was similar in the laser and surgery groups. There were no significant differences between the surgery group and the foam or the laser group in measures of generic quality of life. The frequency of procedural complications was similar in the foam group (6%) and the surgery group (7%) but was lower in the laser group (1%) than in the surgery group (P<0.001); the frequency of serious adverse events (approximately 3%) was similar among the groups. Measures of clinical success were similar among the groups, but successful ablation of the main trunks of the saphenous vein was less common in the foam group than in the surgery group (P<0.001). CONCLUSIONS: Quality-of-life measures were generally similar among the study groups, with the exception of a slightly worse disease-specific quality of life in the foam group than in the surgery group. All treatments had similar clinical efficacy, but complications were less frequent after laser treatment and ablation rates were lower after foam treatment. (Funded by the Health Technology Assessment Programme of the National Institute for Health Research; Current Controlled Trials number, ISRCTN51995477.).


Subject(s)
Laser Therapy , Sclerotherapy , Varicose Veins/therapy , Adult , Female , Follow-Up Studies , Humans , Intention to Treat Analysis , Laser Therapy/adverse effects , Male , Middle Aged , Outcome Assessment, Health Care , Postoperative Complications , Quality of Life , Saphenous Vein/surgery , Sclerotherapy/adverse effects , Sclerotherapy/methods , Severity of Illness Index , Ultrasonography, Interventional , Varicose Veins/classification , Varicose Veins/surgery
10.
Vasa ; 43(2): 141-4, 2014 Mar.
Article in English | MEDLINE | ID: mdl-24627320

ABSTRACT

BACKGROUND: VASCUNET is an international registry of vascular surgical (open and endovascular) procedures since 1997. The aim of this paper is to describe a pilot validation performed at three hospitals in Hungary in September 2012. PATIENTS AND METHODS: Three core indications were checked: abdominal aortic aneurysm, carotid artery disease and limb ischemia with infrainguinal treatment. RESULTS: 2439 registered procedures had been reported with between 94 and 109 per cent agreement with hospital administrative numbers. In a random sample of 29 patients the VASCUNET data were compared with the patient records regarding risk factors, procedures performed and in hospital results. Only few discrepancies were found. CONCLUSIONS: The conclusions are that validation is feasible, that this pilot project in Hungary showed good agreement between registry and local patient records. For a registry to be accepted and used both for practical and scientific purposes regular validation by senior surgeons should be undertaken and the vascular surgical community must have a budget for such a process.


Subject(s)
Aortic Aneurysm, Abdominal/surgery , Carotid Artery Diseases/surgery , Endovascular Procedures , Ischemia/surgery , Lower Extremity/blood supply , Registries , Vascular Surgical Procedures , Endovascular Procedures/adverse effects , Endovascular Procedures/standards , Feasibility Studies , Female , Humans , Hungary , Male , Medical Records , Pilot Projects , Practice Patterns, Physicians'/standards , Registries/standards , Reproducibility of Results , Risk Factors , Treatment Outcome , Vascular Surgical Procedures/adverse effects , Vascular Surgical Procedures/standards
12.
J Vasc Surg ; 56(6): 1564-70, 2012 Dec.
Article in English | MEDLINE | ID: mdl-22858436

ABSTRACT

BACKGROUND: Aortic aneurysm repair is a high-risk surgical procedure. Patients are often elderly, with multiple comorbidities that predispose them to perioperative morbidity. Use of endovascular aneurysm repair (EVAR) has increased due to reduced early perioperative risk. This study assessed whether preoperative cardiopulmonary exercise testing (CPET) could be used to predict morbidity and hospital length of stay (LOS) after aortic aneurysm repair. METHODS: A total of 185 patients underwent surgical repair (84 open repairs, 101 EVAR) and had adequate determination of a submaximal CPET parameter (anaerobic threshold). RESULTS: Patient comorbidities and cardiorespiratory fitness, derived from CPET, were similar between surgical procedures. Patients undergoing EVAR had fewer complications (10% vs 32%; P<.0001) and shorter mean (standard deviation [SD]) hospital LOS of 5.7 (9.3) days vs 14.4 (10.9) days compared with open repair (P<.0001). The hospital LOS was significantly increased in patients with one or more complications in both groups compared with those with no complications. In the open repair group, the level of fitness, as defined by anaerobic threshold, was an independent predictor of postoperative morbidity and hospital LOS. When the optimal anaerobic threshold (10 mL/min/kg) derived from receiver operator curve analysis was used as a cutoff value, unfit patients stayed significantly longer than fit patients in critical care (mean, 6.4 [SD, 6.9] days vs 2.4 [SD, 2.9] days; P=.002) and in the hospital (mean, 23.1 [SD, 14.8] days vs 11.0 [SD, 6.1] days; P<.0001). In contrast, fitness in the EVAR group was not predictive of postoperative morbidity but did have predictive value for hospital LOS. CONCLUSIONS: Cardiorespiratory fitness holds significant clinical value before aortic aneurysm repair in predicting postsurgical complications and duration of critical care and hospital LOS. Preoperative measurement of fitness could then direct clinical management with regard to operative choice, postoperative resource allocation, and informed patient decision making.


Subject(s)
Aortic Aneurysm, Abdominal/physiopathology , Aortic Aneurysm, Abdominal/surgery , Blood Vessel Prosthesis Implantation/adverse effects , Endovascular Procedures/adverse effects , Exercise Test , Aged , Aged, 80 and over , Anaerobic Threshold/physiology , Aortic Aneurysm, Abdominal/complications , Cohort Studies , Elective Surgical Procedures/adverse effects , Exercise Tolerance/physiology , Female , Humans , Length of Stay , Male , Middle Aged , Predictive Value of Tests , Treatment Outcome
13.
Ann R Coll Surg Engl ; 92(4): 341-6, 2010 May.
Article in English | MEDLINE | ID: mdl-20501021

ABSTRACT

INTRODUCTION: We aimed to analyse national trends in varicose vein treatment in the UK National Health Service (NHS). SUBJECTS AND METHODS: The National Hospital Episode Statistics website (www.Hesonline.nhs.uk) was interrogated for patients treated (1998-2008) in the NHS for varicose veins. RESULTS: There has been a 34% decline in patients presenting for an intervention for varicose veins. For surgical procedures alone, the waiting times have fallen by 59%. In 2007-2008, 30,663 (72%) fewer bed days were used in comparison to 1998; accompanied by a 49% decline in the number of patients undergoing surgery. After a 47% decrease between 1998 and 2001, the number of patients requesting sclerotherapy treatment has increased by a substantial 311% over the subsequent 7 years. Transluminal procedures were used almost twice as often in 2007-2008 as in 2006-2007. CONCLUSIONS: There has been a steady decline in the number of patients treated for varicose veins. Fewer patients are undergoing surgery but are being managed more efficiently, with an increase in day cases and a reduction in total bed days. The demand for minimally invasive procedures has increased substantially. These trends will be of great importance for the future planning of vascular surgical services.


Subject(s)
Varicose Veins/therapy , Adolescent , Adult , Ambulatory Surgical Procedures/statistics & numerical data , Ambulatory Surgical Procedures/trends , Catheter Ablation/statistics & numerical data , Catheter Ablation/trends , England/epidemiology , Female , Humans , Length of Stay/statistics & numerical data , Length of Stay/trends , Male , Middle Aged , Minimally Invasive Surgical Procedures/statistics & numerical data , Minimally Invasive Surgical Procedures/trends , Sclerotherapy/statistics & numerical data , Sclerotherapy/trends , State Medicine/statistics & numerical data , State Medicine/trends , Varicose Veins/epidemiology , Varicose Veins/surgery , Waiting Lists , Young Adult
14.
BMJ ; 338: b1847, 2009 Jun 04.
Article in English | MEDLINE | ID: mdl-19502220

ABSTRACT

OBJECTIVES: To assess timeliness of carotid endarterectomy services in the United Kingdom. DESIGN: Observational study with follow-up to March 2008. SETTING: UK hospitals performing carotid endarterectomy. PARTICIPANTS: UK surgeons undertaking carotid endarterectomy from December 2005 to December 2007. MAIN OUTCOME MEASURES: Provision and speed of delivery of appropriate assessments of patients; carotid endarterectomy and operative mortality; 30 day postoperative mortality. RESULTS: 240 (61% of those eligible) consultant surgeons took part from 102 (76%) hospitals and trusts. Of 9913 carotid endarterectomies recorded on hospital episode statistics, 5513 (56%) were included. Of the patients who underwent endarterectomy, 83% had a history of transient ischaemic attack or stroke. Of these recently symptomatic patients, 20% had their operation within two weeks of onset of symptoms and 30% waited more than 12 weeks. Operative mortality was 0.5% during the inpatient stay and 1.0% (95% confidence interval 0.7% to 1.3%) by 30 days. CONCLUSION: Only 20% of symptomatic patients had surgery within the two week target time set by the National Institute for Health and Clinical Excellence (NICE). Although operative mortality rates are comparable with those in other countries, some patients might experience disabling or fatal stroke while waiting for surgery and hence not be included in operative statistics. Major improvements in services are necessary to enable early surgery in appropriate patients in order to prevent strokes.


Subject(s)
Endarterectomy, Carotid/statistics & numerical data , Waiting Lists , Aged , Brain Ischemia/surgery , Carotid Artery Diseases/mortality , Carotid Artery Diseases/surgery , Endarterectomy, Carotid/mortality , Female , Follow-Up Studies , Hospital Mortality , Humans , Male , Stroke/surgery , United Kingdom
15.
J Vasc Surg ; 44(4): 794-802, 2006 Oct.
Article in English | MEDLINE | ID: mdl-17012003

ABSTRACT

INTRODUCTION: Quantitative measurements of chronic venous insufficiency (CVI) are sensitive in detecting the presence of CVI but have low specificity in differentiating clinical severities of CVI as defined by the CEAP classification. One possible reason for this is measurement techniques do not assess variables that reflect hemodynamic changes that occur during normal exercise. Our aim was to compare the association of variables determined from a new technique, continuous ambulatory venous pressure monitoring (CAVPM), and those of conventional AVP measurement with the clinical severity of chronic venous insufficiency in patients with primary venous reflux. METHODS: Fifty-four limbs of 49 patients with CVI and 15 healthy controls were studied. CVI clinical severity was classified according to CEAP as C2&C3 (mild disease), C4 (moderate disease), and C5&C6 (severe disease). All participants underwent duplex ultrasound scanning to rule out the presence of reflux in the control group and to confirm it in the patient groups. Conventional AVP measurements, including 90% refilling time (RT90), were compared with the new CAVP variables of mean walking pressure (MWP) and percentage fall in walking pressure (%FWP). Data were analyzed by analysis of variance using the Kruskal-Wallis test, and comparisons between groups were performed using Mann-Whitney tests. Discriminant analysis was used to determine the ability of a test to classify limbs into clinical classes. RESULTS: Conventional AVP measurements could not differentiate between the control group and the presence of mild disease (P = .56) but did differentiate between controls and severe disease as well as mild and severe disease (P < .001). RT90 detected differences between controls and reflux groups (P < .001) but not between moderate (C4) and severe (C5&C6) clinical groups (P > .5). MWP and %FWP showed significant differences between all clinical severities and controls (P < .001). CONCLUSION: In the assessment of CVI, mean walking pressure and percent fall in walking pressure are more reliably associated with anatomic distribution of reflux and clinical severity of CVI than the gold standard investigations of conventional AVP and RT90.


Subject(s)
Blood Pressure Monitoring, Ambulatory/instrumentation , Saphenous Vein/physiopathology , Venous Insufficiency/classification , Venous Insufficiency/physiopathology , Adult , Aged , Chronic Disease , Equipment Design , Exercise Test , Female , Follow-Up Studies , Humans , Male , Middle Aged , Reproducibility of Results , Severity of Illness Index , Toes , Venous Pressure/physiology
16.
J Vasc Surg ; 44(3): 580-587, 2006 Sep.
Article in English | MEDLINE | ID: mdl-16950437

ABSTRACT

INTRODUCTION: The pathophysiology underlying the skin changes seen in chronic venous insufficiency (CVI) is multifactorial. Sedentary lifestyle and prolonged sitting and standing at work have been proposed by some authors to be influential in the development of CVI skin changes. This study compared the 24-hour activity profiles in patients with different clinical severities of CVI and normal controls. METHODS: Patients were classified into groups according to CEAP clinical severity classes: mild (C2&C3), moderate (C4) and severe (C5&C6). Activity profiles were measured in 60 patients and 15 controls using a Newcastle Universities Medical Activity (NUMACT) monitor, which recorded the duration spent in supine, sitting, and standing postures as well as duration spent walking and the walking intensity over a 24-hour period. Analysis was performed by Kruskal-Wallis and Mann-Whitney tests and Spearman correlation. RESULTS: Walking intensity was significantly different between the controls and patient groups during prolonged walking (P < .001). The controls spent significantly more time standing in a 24-hour period than any of the CVI clinical groups (P = .036), and the percentage time spent sitting was significantly higher in the patient groups (P = .025). No significant differences were found in the total number of steps taken or total duration spent walking in the 24-hour period between any of the groups. CONCLUSION: This study shows that walking intensity is lower in the more severe clinical groups and may be influenced by the clinical severity of CVI. The study provides evidence that prolonged sitting and reduced standing is associated with increased severity of CVI, which may by an effect of the patient's symptoms rather than a cause of disease progression.


Subject(s)
Motor Activity , Venous Insufficiency/epidemiology , Adult , Chronic Disease , Female , Ferrous Compounds , Humans , Life Style , Male , Motor Activity/physiology , Posture , Risk Factors , Venous Insufficiency/physiopathology
17.
J Vasc Surg ; 42(3): 510-4, 2005 Sep.
Article in English | MEDLINE | ID: mdl-16171598

ABSTRACT

BACKGROUND: We assessed the impact of postoperative sensory abnormalities and bruising after long saphenous vein (LSV) stripping on short-term quality of life (QOL). METHODS: Seventy patients with LSV incompetence were recruited before surgery. Surgery involved saphenofemoral disconnection, stripping of the LSV in the thigh, and multiple stab avulsions in all patients. Sensory abnormalities (subjective and objective) and bruising were recorded at two follow-up visits (mean, 8 and 47 days). The bruised area was traced manually, and the surface area was estimated by placing the tracing on a square chart. A QOL assessment was performed before surgery and repeated during the second visit by using the Aberdeen Varicose Veins Questionnaire. Minitab version 13.32 was used for statistical analysis. RESULTS: Eight patients either did not complete follow-up or were excluded from the final analysis. Final analysis was performed on 63 limbs in 62 patients (27 men and 35 women; age, 19-75 years). The overall incidence of postoperative sensory abnormality was 40% (25/63 limbs). This included numbness or decreased sensation in 36.5% (23/63), paresthesia in 8% (5/63), and dysesthesia in 1.6% (1/63). Irrespective of the presence of sensory abnormalities, QOL scores improved after surgery (mean change in QOL score, -7.58 and -7.52; SE, 1.1 and 1.3 in those with and without sensory abnormalities, respectively). There was no significant difference either in the degree of improvement in the QOL score (P = .972; t test) or in the proportion of patients with an improved score (P = .69; Fisher exact test) between the groups with and without sensory abnormalities. Postoperative bruising at first follow-up ranged from 28 to 1419 cm(2) (mean, 500.7 cm(2); median, 438 cm(2)). Both groups--those who bruised less than the median value (438 cm(2)) and those who bruised more than the median value--showed improved postoperative QOL scores (mean change in QOL score, -7.64 and -7.46; SE, 1.3 and 1.3, respectively). There was no significant difference either in the degree of improvement in the QOL score (P = .924; t test) or in the proportion of patients with an improved score (P = .422; Fisher exact test). All patients with persistent bruising at the second follow-up (26%) also showed an improvement in the QOL score (mean change in QOL score, -10.29). CONCLUSIONS: Conventional surgery for varicose veins with stripping of the LSV is associated with significant morbidity of sensory abnormalities and bruising. However, this does not adversely affect postoperative improvement in short-term QOL.


Subject(s)
Contusions/etiology , Quality of Life , Saphenous Vein , Sensation Disorders/etiology , Varicose Veins/surgery , Adult , Aged , Chi-Square Distribution , Female , Humans , Male , Middle Aged , Prospective Studies , Surveys and Questionnaires
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