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1.
Ann Vasc Surg ; 106: 61-70, 2024 May 10.
Article in English | MEDLINE | ID: mdl-38735472

ABSTRACT

BACKGROUND: Acute isolated abdominal aortic dissection (IAAD) is a rare condition and treatment recommendations are lacking. Most previous studies included both symptomatic and asymptomatic patients. The aims were to determine the proportion of IAAD among patients with acute type B aortic dissection as well as to describe patient characteristics, radiological findings, and frequency of early and late complications and to explore sex differences. METHODS: This was a retrospective cohort study including all patients hospitalized with acute symptomatic IAAD in Stockholm County during 2012-2021. RESULTS: A total of 277 patients with acute type B aortic dissection were identified, of whom 10% (n = 28/277) had acute IAAD. Median age was 56 years and 43% (n = 12/28) were women. Hypertension was diagnosed in 46% (n = 13/28) prior to admission. At onset, abdominal pain was the predominant complaint (93%, n = 26/28) and 93% (n = 26/28) were hypertensive on admission. The suprarenal aorta was involved in 39% (n = 11/28) and at least 1 of the iliac arteries in 50% (n = 14/28). All but 1 patient had uncomplicated IAAD (96%, n = 27/28). One patient presented with aortic rupture, treated with open surgical repair. Among patients with primarily uncomplicated IAAD, 7% eventually developed chronic complications (n = 2/27). Median maximum aortic diameter at 1-year follow-up was 21 mm (interquartile range 17-28). Only 1 patient had an aortic diameter exceeding 30 mm. None of the patients died during follow-up; median follow-up was 3.0 years (interquartile range 2-8). CONCLUSIONS: Early and late complications are rare in patients with acute symptomatic IAAD and a conservative approach with antihypertensive treatment and surveillance in uncomplicated cases seems reasonable.

2.
Eur J Vasc Endovasc Surg ; 66(3): 397-406, 2023 09.
Article in English | MEDLINE | ID: mdl-37356704

ABSTRACT

OBJECTIVE: Abdominal aortic graft and endograft infections (AGIs) are rare complications following aortic surgery. Radical surgery (RS) with resection of the infected graft and reconstruction with extra-anatomical bypass or in situ reconstruction is the preferred therapy. For patients unfit for RS, a semi-conservative (SC), graft preserving strategy is possible. This paper aimed to compare survival and infection outcomes between RS and SC treatment for AGI in a nationwide cohort. METHODS: Patients with abdominal AGI related surgery in Sweden between January 1995 and May 2017 were identified. The Management of Aortic Graft Infection Collaboration (MAGIC) criteria were used for the definition of AGI. Multivariable regression was performed to identify factors associated with mortality. RESULTS: One hundred and sixty-nine patients with surgically treated abdominal AGI were identified, comprising 43 SC (14 endografts; 53% with a graft enteric fistula [GEF] in total) and 126 RS (26 endografts; 50% with a GEF in total). The SC cohort was older and had a higher frequency of cardiac comorbidities. There was a non-significant trend towards lower Kaplan-Meier estimated five year survival for SC vs. RS (30.2% vs. 48.4%; p = .066). A non-significant trend was identified towards worse Kaplan-Meier estimated five year survival for SC patients with a GEF vs. without a GEF (21.7% vs. 40.1%; p = .097). There were significantly more recurrent graft infections comparing SC with RS (45.4% vs. 19.3%; p < .001). In a Cox regression model adjusting for confounders, there was no difference in five year survival comparing SC vs. RS (HR 1.0, 95% CI 0.6 - 1.5). CONCLUSION: In this national AGI cohort, there was no mortality difference comparing SC and RS for AGI when adjusting for comorbidities. Presence of GEF probably negatively impacts survival outcomes of SC patients. Rates of recurrent infection remain high for SC treated patients.


Subject(s)
Aortic Aneurysm, Abdominal , Blood Vessel Prosthesis Implantation , Endovascular Procedures , Prosthesis-Related Infections , Humans , Blood Vessel Prosthesis/adverse effects , Blood Vessel Prosthesis Implantation/adverse effects , Conservative Treatment/adverse effects , Risk Factors , Retrospective Studies , Endovascular Procedures/adverse effects , Postoperative Complications/etiology , Prosthesis-Related Infections/surgery , Prosthesis-Related Infections/etiology , Treatment Outcome , Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Aneurysm, Abdominal/surgery , Aortic Aneurysm, Abdominal/complications
3.
Eur J Vasc Endovasc Surg ; 64(2-3): 166-174, 2022.
Article in English | MEDLINE | ID: mdl-35561947

ABSTRACT

OBJECTIVE: The main objective was to report mechanisms and precursors for post-endovascular aneurysm repair (EVAR) rupture. The second was to apply a structured protocol to explore whether these factors were identifiable on follow up computed tomography (CT) prior to rupture. The third objective was to study the incidence, treatment, and outcome of post-EVAR rupture. METHODS: This was a multicentre, retrospective study of patients treated with standard EVAR at five Swedish hospitals from 2008 to 2018. Patients were identified from the Swedvasc registry. Medical records were reviewed up to 2020. Index EVAR and follow up data were recorded. The primary endpoint was post-EVAR rupture. CT at follow up and at post-EVAR rupture were studied, using a structured protocol, to determine rupture mechanisms and identifiable precursors. RESULTS: In 1 805 patients treated by EVAR, 45 post-EVAR ruptures occurred in 43 patients. The cumulative incidence was 2.5% over a mean follow up of 5.2 years. The incidence rate was 4.5/1 000 person years. Median time to post-EVAR rupture was 4.1 years. A further six cases of post-EVAR rupture in five patients found outside the main cohort were included in the analysis of rupture mechanisms only. The rupture mechanism was type IA in 20 of 51 cases (39%), IB in 20 of 51 (39%) and IIIA/B in 11 of 51 (22%). One of these had type IA + IB combined. One patient had an aortoduodenal fistula without another mechanism being identified. Precursors had been noted on CT follow up prior to post-EVAR rupture in 16 of 51 (31%). Retrospectively, using the structured protocol, precursors could be identified in 43 of 51 (84%). In 17 of 27 (63%) cases missed on follow up but retrospectively identifiable, the mechanisms were type IB/III. Overall, the 30 day mortality rate after post-EVAR rupture was 47% (n = 24/51) and the post-operative mortality rate was 21% (n = 7/33). CONCLUSIONS: Most precursors of post-EVAR rupture are underdiagnosed but identifiable before rupture using a structured follow up CT protocol. Precursors of type IB and III failures caused the majority of post-EVAR ruptures.

4.
Br J Surg ; 109(4): 346-354, 2022 03 15.
Article in English | MEDLINE | ID: mdl-35237794

ABSTRACT

BACKGROUND: Tea has the potential to lower the risk of abdominal aortic aneurysm (AAA) owing to its high antioxidant capacity. AAA risk factors including smoking, hypertension, and hypercholesterolaemia, may modify this association. METHODS: The study population included 45 047 men in the Cohort of Swedish Men (COSM) and 36 611 women in the Swedish Mammography Cohort (SMC), aged 45-83 years at baseline. The COSM was established in 1997 with all men who lived in two central Swedish counties (Västmanland and Örebro), and the SMC was established in 1987-1990 with women residing in Västmanland county. Tea consumption was assessed by means of food frequency questionnaires in 1997 and 2009. RESULTS: During 17.5 years of follow-up, 1781 AAA cases (1496 men, 285 women; 1497 non-ruptured, 284 ruptured) were ascertained via Swedish registers. Tea consumption was inversely associated with total AAA incidence in men and women. Women had a 23 (95 per cent c.i. 8 to 36) per cent lower risk of AAA per each cup per day increment, whereas men had a 9 (0 to 17) per cent lower risk (Pinteraction = 0.029). Tea consumption was associated with a lower risk of both non-ruptured (hazard ratio (HR) 0.93, 95 per cent c.i. 0.85 to 1.01) and ruptured (HR 0.84, 0.71 to 0.98) AAA. Smoking status modified the association (Pinteraction < 0.001), whereby tea consumption was associated with lower risk of AAA in ex-smokers (per cup per day, HR 0.89, 0.80 to 0.98) and in never smokers (HR 0.88, 0.77 to 1.00), but not in current smokers (HR 0.95, 0.84 to 1.06). Tea consumption was associated with a lower risk in participants with (HR 0.88, 0.80 to 0.98) and without (HR 0.93, 0.88 to 1.00) hypertension, and in those with (HR 0.82, 0.67 to 1.01) and without (HR 0.92, 0.86 to 0.98) hypercholesterolaemia. CONCLUSION: Tea consumption was associated with a reduced risk of AAA. The association was more pronounced for ruptured than non-ruptured AAA, and in patients with hypertension and hypercholesterolaemia than those without. The association was also observed in ex-smokers and never smokers, but not in current smokers.


Subject(s)
Aortic Aneurysm, Abdominal , Hypercholesterolemia , Hypertension , Aortic Aneurysm, Abdominal/epidemiology , Aortic Aneurysm, Abdominal/etiology , Female , Humans , Hypercholesterolemia/complications , Hypertension/complications , Male , Prospective Studies , Risk Factors , Tea/adverse effects
5.
Acta Anaesthesiol Scand ; 66(3): 365-374, 2022 03.
Article in English | MEDLINE | ID: mdl-34875111

ABSTRACT

BACKGROUND: Critically ill COVID-19 patients have a high reported incidence of thromboembolic complications and the optimal dose of thromboprophylaxis is not yet determined. The aim of this study was to investigate if 90-day mortality differed between patients treated with intermediate- or high-dose thromboprophylaxis. METHOD: In this retrospective study, all critically ill COVID-19 patients admitted to intensive care from March 6th until July 15th, 2020, were eligible. Patients were categorized into groups according to daily dose of thromboprophylaxis. Dosing was based on local standardized recommendations, not on degree of critical illness or risk of thrombosis. Cox proportional hazards regression was used to estimate hazard ratios of death within 90 days from ICU admission. Multivariable models were adjusted for sex, age, body-mass index, Simplified Acute Physiology Score III, invasive respiratory support, glucocorticoids, and dosing strategy of thromboprophylaxis. RESULTS: A total of 165 patients were included; 92 intermediate- and 73 high-dose thromboprophylaxis. Baseline characteristics did not differ between groups. The 90-day mortality was 19.6% in patients with intermediate-dose and 19.2% in patients with high-dose thromboprophylaxis. Multivariable hazard ratio of death within 90 days was 0.74 (95% CI, 0.36-1.53) for the high-dose group compared to intermediate-dose group. Multivariable hazard ratio for thromboembolic events and bleedings within 28 days was 0.93 (95% CI 0.37-2.29) and 0.84 (95% CI 0.28-2.54) for high versus intermediate dose, respectively. CONCLUSIONS: A difference in 90-day mortality between intermediate- and high-dose thromboprophylaxis could neither be confirmed nor rejected due to a small sample size.


Subject(s)
COVID-19 , Venous Thromboembolism , Anticoagulants , Critical Illness , Humans , Intensive Care Units , Retrospective Studies , SARS-CoV-2
6.
Eur J Vasc Endovasc Surg ; 62(6): 918-926, 2021 12.
Article in English | MEDLINE | ID: mdl-34782231

ABSTRACT

OBJECTIVE: Abdominal aortic graft and endograft infection (AGI) is primarily treated by resection of the infected graft and restoration of distal perfusion through extra-anatomic bypass (EAB) or in situ reconstruction/repair (ISR). The aim of this study was to compare these surgical strategies in a nationwide multicentre retrospective cohort study. METHODS: The Swedish Vascular Registry (Swedvasc) was used to identify surgically treated abdominal AGIs in Sweden between January 1995 and May 2017. The primary aim was to compare short and long term survival, as well as complications for EAB and ISR. RESULTS: Some 126 radically surgically treated AGI patients were identified - 102 graft infections and 24 endograft infections - treated by EAB: 71 and ISR: 55 (23 neo-aorto-iliac systems, NAISs). No differences in early 30 day (EAB 81.7% vs. ISR 76.4%, p = .46), or long term five year survival (48.2% vs. 49.9%, p = .87) were identified. There was no survival difference comparing NAIS to other ISR strategies. The frequency of recurrent graft infection during follow up was similar: EAB 20.3% vs. ISR 17.0% (p = .56). Survival and re-infection rates of the new conduit did not differ between NAIS and other ISR strategies. Age ≥ 75 years (odds ratio [OR] 4.0, confidence interval [CI] 1.1 - 14.8), coronary artery disease (OR 4.2, CI 1.2 - 15.1) and post-operative circulatory complications (OR 5.2, CI 1.2 - 22.5) were associated with early death. Prolonged antimicrobial therapy (> 3 months) was associated with reduced long term mortality (HR 0.3, CI 0.1 - 0.9). CONCLUSION: In this nationwide multicentre study comparing outcomes of radically treated AGI, no differences in survival or re-infection rate could be identified comparing EAB and ISR.


Subject(s)
Aorta, Abdominal/surgery , Blood Vessel Prosthesis Implantation/adverse effects , Blood Vessel Prosthesis/adverse effects , Endovascular Procedures/adverse effects , Prosthesis-Related Infections/surgery , Aged , Aorta, Abdominal/diagnostic imaging , Blood Vessel Prosthesis Implantation/instrumentation , Blood Vessel Prosthesis Implantation/mortality , Endovascular Procedures/instrumentation , Endovascular Procedures/mortality , Female , Humans , Male , Middle Aged , Prosthesis-Related Infections/diagnostic imaging , Prosthesis-Related Infections/microbiology , Prosthesis-Related Infections/mortality , Registries , Reoperation , Retrospective Studies , Risk Assessment , Risk Factors , Sweden , Time Factors , Treatment Outcome
8.
BJS Open ; 5(5)2021 09 06.
Article in English | MEDLINE | ID: mdl-34518875

ABSTRACT

BACKGROUND: Diastasis recti abdominis (DRA) is a condition affecting many post-partum women. The aim of this study was to evaluate long-term results of surgical repair of DRA in a cohort of post-partum women. METHODS: Sixty post-partum women with DRA and training-resistant core dysfunctions were included. Surgical repair was performed with suture plication of the linea alba. Abdominal core function was evaluated with the abdominal trunk function protocol (ATFP) including a self-report questionnaire and seven functional tests. Urinary incontinence and quality of life were evaluated with the Urogenital Distress Inventory (UDI-6), the Incontinence Impact Questionnaire (IIQ-7) and the SF-36 questionnaire. Follow-up was performed at 1 and 3 years after surgery. RESULTS: Response rate at the 3-year follow-up was 86.7 per cent for the disability rating index (DRI) questionnaire; and 71.7 per cent for the ATFP, UDI-6, IIQ-7 and SF-36 questionnaires. All DRI parameters were improved (P < 0.001) after 3 years of follow-up compared with preoperative values. The functional tests in the ATFP showed an improvement in core muscle strength and stability (P < 0.001), back muscle strength (P < 0.001) and abdominal muscle strength (P = 0.002) compared to preoperative values as well as an improvement of core muscle strength and stability compared with the 1-year follow-up values (P = 0.003). UDI-6 and IIQ-7 results were improved (P < 0.001 and P = 0.004) compared with preoperative values and showed consistent values compared with the 1-year follow-up (P = 0.09 and P = 1.0). Quality of life measured with SF-36 was improved compared with preoperative values and showed consistent values compared with the 1-year follow-up. CONCLUSION: The functional improvement of surgical reconstruction of the DRA persisted for 3 years in this series of post-partum women with DRA.


Subject(s)
Diastasis, Muscle , Quality of Life , Abdominal Core , Female , Follow-Up Studies , Humans , Rectus Abdominis/surgery
9.
Eur J Vasc Endovasc Surg ; 62(4): 532-539, 2021 10.
Article in English | MEDLINE | ID: mdl-34266764

ABSTRACT

OBJECTIVE: Limb graft occlusion (LGO) is a serious complication after endovascular aneurysm repair (EVAR) and while device development enables treatment of increasingly complex aortic anatomy, little is known about how endograft type affects the risk of occlusion. This observational study aimed to explore the incidence of LGO after EVAR for three major endograft systems. METHODS: All patients with standard EVAR as the primary intervention for infrarenal abdominal aortic aneurysm (AAA), between January 2012 and December 2018, at five Swedish vascular surgery centres, were included in this multicentre retrospective cohort study. LGO was defined as a total limb occlusion regardless of symptoms, or a treated significant stenosis. A nested case control (NCC) design with incidence density sampling of 1:3 was used for analysis of potential per-operative and morphological risk factors. Conditional logistic regression was used to estimate multivariable odds ratios (OR) with 95% confidence intervals (CI) RESULTS: A total of 924 patients were included. The majority were male (84%), the mean age was 76 years (± 7.5 SD), and median AAA diameter was 59 mm (IQR 55, 67). Patients were treated with Zenith Alpha (n = 315, ZISL limbs), Excluder (n = 152, PLC/PXC limbs), and Endurant (n = 457, ETLW/ ETEW limbs). During median follow up of 37 months (IQR 21, 62), 55 occlusions occurred (5.9%); 39 with Zenith Alpha (12.4%), one with Excluder (0.7%), and 15 with Endurant (3.3%). In the NCC analysis, the Zenith Alpha device (OR 5.31, 95% CI 1.97 - 14.3), external iliac artery (EIA) landing (OR 5.91, 95% CI 1.30 - 26.7), and EIA diameter < 10 mm (OR 4.99, 95% CI 1.46 - 16.9) were associated with an increased risk of LGO. CONCLUSION: Endograft device type is an independent risk factor for LGO after EVAR. Specifically, the Zenith Alpha demonstrated an increased risk of LGO compared with the Endurant and Excluder devices. In addition, a narrow EIA and landing zone in EIA are also risk factors for LGO.


Subject(s)
Aortic Aneurysm, Abdominal/surgery , Blood Vessel Prosthesis Implantation/adverse effects , Blood Vessel Prosthesis Implantation/instrumentation , Blood Vessel Prosthesis , Endovascular Procedures/adverse effects , Endovascular Procedures/instrumentation , Graft Occlusion, Vascular/epidemiology , Aged , Aged, 80 and over , Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Aneurysm, Abdominal/physiopathology , Female , Graft Occlusion, Vascular/diagnostic imaging , Graft Occlusion, Vascular/physiopathology , Humans , Incidence , Male , Prosthesis Design , Retrospective Studies , Risk Assessment , Risk Factors , Sweden/epidemiology , Time Factors , Treatment Outcome
10.
Neurol Res Pract ; 3(1): 36, 2021 Jul 05.
Article in English | MEDLINE | ID: mdl-34218812

ABSTRACT

BACKGROUND: The current Libyan civil war has originated many casualties, imposing medical challenges. War injuries are complex, requiring specialized knowledge and interdisciplinary assessment for adequate patient and intercultural management. METHODS: This retrospective study analyzed records of 78 Libyan patients admitted from July 2016 to November 2017 to neurological and trauma surgical departments of Krankenhaus Nordwest, Frankfurt, Germany. Issues of system preparation of the hospital, demographics, injury patterns and therapies were analyzed. The chi-squared test was used to analyze differences in injury patterns in explosion and gunshot injuries. RESULTS: Seventy-seven of seventy-eight patients were male (mean age 30.6 years). The patients received primary and secondary treatment in Tunisia (n = 39), Libya (n = 36) and Turkey (n = 23). Forty-eight patients had gunshot injuries, 37 explosion injuries, 11 both. Preparation for management of injuries included hygienic and isolation protocols, organization of interpreters and intercultural training. Patients presented with a broad variety of neurological, psychiatric and trauma surgical injuries. Fifty-six patients had sensory, 47 motor deficits. Nine reported headache, 5 vertigo, 13 visual impairment, 28 psychiatric symptoms. Eighteen patients had central nervous damage, 50 peripheral nervous damage. Central nervous damage was significantly more common in gunshot than explosion injuries (p = 0.015). Peripheral nervous damage was more common in explosion than gunshot injuries (p < 0.1). Fifty-one patients had polytrauma and 49 suffered from fractures. Therapy included surgical interventions (n = 56) and physiotherapy. Structured rehabilitation programs were often indicated. CONCLUSION: Specialized knowledge about war injuries and their management including hospital preparation and planning regarding infrastructure may be required anytime. Injuries include a broad variety of neurological, psychiatric and trauma surgical injuries. Therefore, an interdisciplinary approach is crucial.

11.
Eur J Vasc Endovasc Surg ; 62(2): 284-293, 2021 08.
Article in English | MEDLINE | ID: mdl-34144885

ABSTRACT

OBJECTIVE: Smoking is a strong risk factor for the development of abdominal aortic aneurysm (AAA). It was hypothesised that a Mediterranean diet via its anti-oxidative properties would decrease the risk of AAA, particularly among smokers. METHODS: The study population included the Cohort of Swedish Men (45 072 men) and the Swedish Mammography Cohort (36 632 women), aged 45 - 83 years at baseline. A modified Mediterranean Diet (mMED) score, including eight food groups, was calculated based on a food frequency questionnaire. Cox proportional hazard models were used to estimate hazard ratios (HRs) with 95% confidence intervals (CIs). RESULTS: During 17.5 years of follow up (1 427 841 person-years), 1 781 AAA cases (1 496 in men, 285 in women; 1 497 non-ruptured, 284 ruptured) were ascertained via Swedish registers. The mMED score was inversely associated with AAA incidence in men (per each one point increment in mMED score HR 0.96, 95% CI 0.93 - 1.00) and in women (HR 0.83, 95% CI 0.77 - 0.90), for non-ruptured (HR 0.95, 95% CI 0.92 - 0.99; in men with infrarenal aortic diameter ≥ 30 mm HR 0.90, 95% CI 0.81 - 1.00) and for ruptured AAA (HR 0.81, 95% CI 0.70 - 0.93). In current and ex-smokers with low (< 20) and moderate (20 - 39.9) pack-years of smoking, a statistically significant inverse association was observed. HRs for each one point increment in the mMED score in current smokers were 0.83 (95% CI 0.75 - 0.91) and 0.90 (95% CI 0.84 - 0.97), respectively; in ex-smokers 0.89 (95% CI 0.81 - 0.97) and 0.93 (95% CI 0.85 - 1.01), respectively. No association was observed among current or ex-smokers with ≥ 40 pack-years; HRs 1.02 (95% CI 0.91 - 1.13) and 0.95 (95% CI 0.83 - 1.10), respectively. CONCLUSION: Adherence to the Mediterranean diet was associated with a reduced AAA risk in current and ex-smokers with low pack-years of smoking.


Subject(s)
Aortic Aneurysm, Abdominal/epidemiology , Aortic Rupture/epidemiology , Diet, Mediterranean , Ex-Smokers/statistics & numerical data , Smokers/statistics & numerical data , Aged , Aged, 80 and over , Cigarette Smoking/epidemiology , Female , Follow-Up Studies , Humans , Incidence , Male , Middle Aged , Patient Compliance , Proportional Hazards Models , Prospective Studies , Protective Factors , Registries , Risk Factors , Sweden/epidemiology
12.
Crit Care ; 24(1): 653, 2020 11 23.
Article in English | MEDLINE | ID: mdl-33225952

ABSTRACT

BACKGROUND: A substantial proportion of critically ill COVID-19 patients develop thromboembolic complications, but it is unclear whether higher doses of thromboprophylaxis are associated with lower mortality rates. The purpose of the study was to evaluate the association between initial dosing strategy of thromboprophylaxis in critically ill COVID-19 patients and the risk of death, thromboembolism, and bleeding. METHOD: In this retrospective study, all critically ill COVID-19 patients admitted to two intensive care units in March and April 2020 were eligible. Patients were categorized into three groups according to initial daily dose of thromboprophylaxis: low (2500-4500 IU tinzaparin or 2500-5000 IU dalteparin), medium (> 4500 IU but < 175 IU/kilogram, kg, of body weight tinzaparin or > 5000 IU but < 200 IU/kg of body weight dalteparin), and high dose (≥ 175 IU/kg of body weight tinzaparin or ≥ 200 IU/kg of body weight dalteparin). Thromboprophylaxis dosage was based on local standardized recommendations, not on degree of critical illness or risk of thrombosis. Cox proportional hazards regression was used to estimate hazard ratios with corresponding 95% confidence intervals of death within 28 days from ICU admission. Multivariable models were adjusted for sex, age, body mass index, Simplified Acute Physiology Score III, invasive respiratory support, and initial dosing strategy of thromboprophylaxis. RESULTS: A total of 152 patients were included: 67 received low-, 48 medium-, and 37 high-dose thromboprophylaxis. Baseline characteristics did not differ between groups. For patients who received high-dose prophylaxis, mortality was lower (13.5%) compared to those who received medium dose (25.0%) or low dose (38.8%), p = 0.02. The hazard ratio of death was 0.33 (95% confidence intervals 0.13-0.87) among those who received high dose, and 0.88 (95% confidence intervals 0.43-1.83) among those who received medium dose, as compared to those who received low-dose thromboprophylaxis. There were fewer thromboembolic events in the high (2.7%) vs medium (18.8%) and low-dose thromboprophylaxis (17.9%) groups, p = 0.04. CONCLUSIONS: Among critically ill COVID-19 patients with respiratory failure, high-dose thromboprophylaxis was associated with a lower risk of death and a lower cumulative incidence of thromboembolic events compared with lower doses. TRIAL REGISTRATION: Clinicaltrials.gov NCT04412304 June 2, 2020, retrospectively registered.


Subject(s)
Anticoagulants/administration & dosage , COVID-19/mortality , Critical Illness/mortality , Dalteparin/administration & dosage , Thrombosis/mortality , Thrombosis/prevention & control , Tinzaparin/administration & dosage , APACHE , Aged , Female , Humans , Intensive Care Units , Male , Middle Aged , Retrospective Studies , SARS-CoV-2 , Sweden/epidemiology
13.
Lakartidningen ; 1172020 05 27.
Article in Swedish | MEDLINE | ID: mdl-32463475

ABSTRACT

Increasing evidence indicates immunity against severe acute respiratory syndrome coronavirus 2 (sars-cov-2) after covid-19, but it remains unclear for how long the protection remains. Serology testing seems to have a higher sensitivity than molecular diagnostics from 8 days after onset of symtoms, and should be part of risk assessment and epidemiological studies of COVID-19. The performance of commercial serological point-of-care (POC) lateral flow tests are highly manufacturer-dependant. Low sensitivity increases the risk of false negative results and could result in unnecessary quarantine of test persons with developed antibodies. Low specificity increases the risk of false positive results and could lead to false assumptions of immunity. Carefully selected serological POC tests for sars-cov-2 can be used in large scale testing but should only be used by licensed medical staff able to understand their limitations and interpret the results.


Subject(s)
Betacoronavirus , Clinical Laboratory Techniques , Coronavirus Infections , Pandemics , Pneumonia, Viral , Point-of-Care Systems , Betacoronavirus/immunology , COVID-19 , COVID-19 Testing , Clinical Laboratory Techniques/standards , Coronavirus Infections/diagnosis , Coronavirus Infections/immunology , Epidemiologic Studies , Humans , Pneumonia, Viral/diagnosis , Pneumonia, Viral/immunology , Point-of-Care Systems/standards , SARS-CoV-2 , Sensitivity and Specificity , Time
14.
Heart ; 105(24): 1876-1883, 2019 12.
Article in English | MEDLINE | ID: mdl-31296589

ABSTRACT

OBJECTIVE: The relationship between dietary patterns and development of abdominal aortic aneurysm (AAA) is not well understood. Thus, we prospectively evaluated the association between the anti-inflammatory potential of diet and risk of AAA. METHODS: The study population included the Cohort of Swedish Men (45 072 men) and the Swedish Mammography Cohort (36 633 women), aged 45-83 years at baseline. The anti-inflammatory potential of diet was estimated using Anti-inflammatory Diet Index (AIDI) based on 11 foods with anti-inflammatory potential and 5 with proinflammatory potential (maximum 16 points) that was validated againsthigh sensitivity C reactive protein (hsCRP). Cox proportional hazard regression models were used to estimate HRs and 95% CIs. During the 14.9 years of follow-up (1 217 263 person-years), 1528 AAA cases (277 (18%) ruptured, 1251 non-ruptured) were ascertained via the Swedish Inpatient Register, the National Cause of Death Register and the Register for Vascular Surgery (Swedvasc). RESULTS: We observed an inverse association between the AIDI and AAA risk in women and men; HRs between extreme quartiles of the AIDI (≥8 vs ≤5 points) were 0.55 (95% CI 0.36 to 0.83) in women and 0.81 (95% CI 0.68 to 0.98) in men. The AIDI was inversely associated with both ruptured and non-ruptured AAA incidence; the HR of participants in the highest quartile of AIDI compared with those in the lowest quartile was 0.61 (95% CI 0.41 to 0.90) for ruptured AAA and 0.79 (95% CI 0.65 to 0.95) for non-ruptured AAA. CONCLUSION: Adherence to diet with a high anti-inflammatory potential was associated with a reduced AAA risk, an association that was even more pronounced for AAA rupture.


Subject(s)
Anti-Inflammatory Agents/administration & dosage , Aortic Aneurysm, Abdominal/prevention & control , Diet/statistics & numerical data , Aged , Aged, 80 and over , Aortic Aneurysm, Abdominal/epidemiology , Aortic Aneurysm, Abdominal/etiology , Aortic Rupture/epidemiology , Aortic Rupture/prevention & control , C-Reactive Protein/metabolism , Diet/adverse effects , Female , Follow-Up Studies , Humans , Incidence , Male , Middle Aged , Proportional Hazards Models , Prospective Studies , Registries , Risk Factors , Risk Reduction Behavior , Sweden/epidemiology
16.
Int J Cardiol ; 262: 66-70, 2018 07 01.
Article in English | MEDLINE | ID: mdl-29605469

ABSTRACT

BACKGROUND: The association between type 1 diabetes mellitus (T1DM) and specific cardiovascular diseases (CVD) is uncertain. Furthermore, data on type 2 diabetes mellitus (T2DM) in relation to risk of aortic valve stenosis, atrial fibrillation, abdominal aortic aneurysm, and intracerebral hemorrhage are scarce and inconclusive. We examined the associations of T1DM and T2DM with incidence of seven CVD outcomes. METHODS: This study comprised 71,483 Swedish adults from two population-based prospective cohorts. T1DM and T2DM diagnosis and incident CVD cases were ascertained through linkage with the population-based registers. RESULTS: T1DM was associated with myocardial infarction (hazard ratio [HR] 3.26; 95% confidence interval [CI] 2.47-4.30), heart failure (HR 2.68; 95% CI 1.76-4.09), and ischemic stroke (HR 2.61; 95% CI 1.80-3.79). Increased risk of myocardial infarction, ischemic stroke, and heart failure was also observed in T2DM patients and the magnitude of the associations increased with longer T2DM duration. T2DM was also associated with an increased risk of aortic valve stenosis (HR 1.34; 95% CI 1.05-1.71) and with lower risk of abdominal aortic aneurysm (HR 0.57; 95% CI 0.40-0.82) and intracerebral hemorrhage (HR 0.51; 95% CI 0.30-0.88). Only long-term T2DM (≥20 years) was associated with an increased risk of atrial fibrillation (HR 1.44; 95% CI 1.02-2.04). CONCLUSION: T1DM and T2DM are associated with increased risk of major CVD outcomes. TRIAL REGISTRATION: The Cohort of Swedish Men and the Swedish Mammography Cohort are registered at clinicaltrials.gov as NCT01127711 and NCT01127698, respectively.


Subject(s)
Cardiovascular Diseases/epidemiology , Diabetes Mellitus, Type 1/complications , Diabetes Mellitus, Type 2/complications , Risk Assessment/methods , Cardiovascular Diseases/etiology , Female , Follow-Up Studies , Humans , Incidence , Male , Middle Aged , Retrospective Studies , Sweden/epidemiology
17.
J Am Heart Assoc ; 6(5)2017 May 10.
Article in English | MEDLINE | ID: mdl-28490522

ABSTRACT

BACKGROUND: Modifiable lifestyle-related factors associated with risk of abdominal aortic aneurysm (AAA) are rarely investigated with a prospective design. We aimed to study possible associations among such factors and comorbidities with mean abdominal aortic diameter (AAD) and with risk of AAA among men screened for the disease. METHODS AND RESULTS: Self-reported lifestyle-related exposures were assessed at baseline (January 1, 1998) among 14 249 men from the population-based Cohort of Swedish Men, screened for AAA between 65 and 75 years of age (mean 13 years after baseline). Multivariable prediction of mean AAD was estimated with linear regression, and hazard ratios (HRs) of AAA (AAD ≥30 mm) with Cox proportional hazard regression. The AAA prevalence was 1.2% (n=168). Smoking, body mass index, and cardiovascular disease were associated with a larger mean AAD, whereas consumption of alcohol and diabetes mellitus were associated with a smaller mean AAD. The HR of AAA was increased among participants who were current smokers with ≥25 pack-years smoked compared with never smokers (HR 15.59, 95% CI 8.96-27.15), those with a body mass index ≥25 versus <25 (HR 1.89, 95% CI, 1.22-2.93), and those with cardiovascular disease (HR 1.77, 95% CI, 1.13-2.77), and hypercholesterolemia (HR 1.59, 95% CI 1.08-2.34). Walking or bicycling for >40 minutes/day (versus almost never) was associated with lower AAA hazard (HR 0.59, 95% CI 0.36-0.97) compared with almost never walking or bicycling. CONCLUSIONS: This prospective study confirms that modifiable lifestyle-related factors are associated with AAD and with AAA disease.


Subject(s)
Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Aneurysm, Abdominal/epidemiology , Life Style , Mass Screening/methods , Age Factors , Aged , Comorbidity , Healthy Lifestyle , Humans , Linear Models , Logistic Models , Male , Multivariate Analysis , Nonlinear Dynamics , Predictive Value of Tests , Prevalence , Proportional Hazards Models , Prospective Studies , Protective Factors , Risk Factors , Risk Reduction Behavior , Self Report , Sex Factors , Sweden/epidemiology , Time Factors
18.
Circulation ; 130(8): 646-52, 2014 Aug 19.
Article in English | MEDLINE | ID: mdl-24965567

ABSTRACT

BACKGROUND: Studies investigating the role of alcohol consumption in the development of abdominal aortic aneurysm (AAA) are scarce. We aimed to examine associations between total alcohol consumption and specific alcoholic beverages and the hazard of AAA. METHODS AND RESULTS: The study population was made up of 44 715 men from the Cohort of Swedish Men and 35 569 women from the Swedish Mammography Cohort who were 46 to 84 years of age at baseline in 1998. Cox proportional hazards models were used to estimate hazard ratios with 95% confidence intervals for the associations between alcohol consumption, assessed through a food frequency questionnaire, and AAA, identified by means of linkage to the Swedish Inpatient Register and the Swedish Vascular Registry (Swedvasc). Over the 14-year follow-up until December 2011 (1 019 954 person-years), AAAs occurred in 1020 men and 194 women. Compared with the consumption of 1 glass of alcohol per week (12 g of ethanol), the hazard ratio of AAA among men who consumed 10 glasses per week was 0.80 (95% confidence interval, 0.68-0.94). The corresponding hazard ratio among women who consumed 5 glasses per week was 0.57 (95% confidence interval, 0.40-0.82). Among participants free from cardiovascular disease, total alcohol consumption did not seem to be associated with hazard of the disease. The most commonly consumed alcoholic beverages, beer among men and wine among women, were inversely associated, whereas no association was observed for liquor. CONCLUSIONS: Moderate alcohol consumption, specifically wine and beer, was associated with a lower hazard of abdominal aortic aneurysm. The associations between higher doses of alcohol and risk of the disease remain unknown.


Subject(s)
Alcohol Drinking/epidemiology , Aortic Aneurysm, Abdominal/epidemiology , Aortic Aneurysm, Abdominal/prevention & control , Beer , Wine , Aged , Aged, 80 and over , Female , Follow-Up Studies , Humans , Male , Middle Aged , Proportional Hazards Models , Prospective Studies , Registries , Risk Factors , Surveys and Questionnaires
19.
Circulation ; 128(8): 795-802, 2013 Aug 20.
Article in English | MEDLINE | ID: mdl-23960255

ABSTRACT

BACKGROUND: Dietary factors affecting the risk of developing abdominal aortic aneurysm (AAA) are scarcely investigated. The aim of this study was to investigate the associations of fruit and vegetable consumption with the risk to develop AAA. METHODS AND RESULTS: The prospective Cohort of Swedish Men and the Swedish Mammography Cohort, consisting of 44,317 men and 36,109 women, 46 to 84 years of age at the start of the 13-year follow-up (1998-2010), were used. Fruit and vegetable consumption was assessed at baseline with a 96-item food-frequency questionnaire. By linkage to the Swedish Inpatient Register and the Swedish Vascular Registry (Swedvasc), 1086 primary cases of AAA (222 ruptured) were identified. Cox proportional hazards models were used to estimate hazard ratios with 95% confidence intervals (CIs). Those in the highest quartile of fruit consumption (>2.0 servings/d), in comparison with those in the lowest quartile (<0.7 servings/d), had a 25% (95% CI, 9%-38%) lower risk of AAA, and a 43% (95% CI, 11%-64%) lower risk of ruptured AAA, specifically. Consumption of 2 fruits per day was associated with 31% (95% CI, 11%-47%) lower risk of nonruptured AAA, and 39% (95% CI, 1%-63%) lower risk of ruptured AAA, in comparison with no consumption of fruit. No association was observed between vegetable consumption and AAA risk. CONCLUSIONS: We observed an inverse association between consumption of fruit, but not vegetables, and the risk of AAA, with a more pronounced association with ruptured AAA.


Subject(s)
Aortic Aneurysm, Abdominal/epidemiology , Diet , Fruit , Vegetables , Aged , Aged, 80 and over , Cohort Studies , Female , Follow-Up Studies , Humans , Longitudinal Studies , Male , Middle Aged , Proportional Hazards Models , Prospective Studies , Registries , Risk Factors , Surveys and Questionnaires , Sweden/epidemiology
20.
J Perinat Med ; 40(4): 439-46, 2012 Mar 27.
Article in English | MEDLINE | ID: mdl-22752777

ABSTRACT

AIMS: The aim of this study was to investigate the current prenatal "off-label use" of cytomegalovirus hyperimmunoglobulin (CMV-HIG) in the prevention and treatment of congenital CMV (cCMV) infection, including the long-term outcome of the children. METHODS: This retrospective observational study comprised mothers and their children, born between January 1, 2006, and October 30, 2010. Prenatal CMV-HIG was administered after diagnosis of primary CMV infection of the mother. Clinical and virological data were collected from maternal and pediatric medical and laboratory reports. Follow-up was 12-36 months after birth. RESULTS: Forty-two women and 43 children met the study criteria. In total, 40 mothers and six unborn infants received 115 doses of CMV-HIG. The treatment group (TG; CMV-DNA polymerase chain reaction-positive amniotic fluid) included four mothers; the multinomial group (MG; CMV-positive mother and unknown CMV status of fetus) included 38 mothers (39 infants). For the four unborn infants in TG, CMV-HIG was administered either intraumbilically or into the amniotic fluid; three of the four mothers received intravenous CMV-HIG. Three children in TG remained CMV-positive and were asymptomatic at birth and during follow-up. One infant in TG had symptomatic cCMV infection in utero, at birth, and during follow-up. In MG, 37 of 38 women received intravenous CMV-HIG and two of 39 infants received CMV-HIG in utero. In total, 9 (23.1%) of 39 children in MG were positive for cCMV (including a terminated pregnancy). All eight instances of cCMV infection at birth in MG were asymptomatic at birth and during follow-up. The fetus from the terminated pregnancy showed no sonographic symptoms of cCMV infection. No severe side effect occurred in 115 CMV-HIG applications. CONCLUSION: CMV-HIG was well tolerated. Compared with published untreated mother-child pairs, we observed a trend toward a smaller risk for intrauterine CMV transmission following CMV-HIG application. Signs of prenatal cCMV disease were not reversed after CMV-HIG.


Subject(s)
Cytomegalovirus Infections/congenital , Cytomegalovirus Infections/prevention & control , Immunoglobulins/administration & dosage , Pregnancy Complications, Infectious/virology , Amniotic Fluid/virology , Cytomegalovirus/genetics , Cytomegalovirus Infections/drug therapy , DNA, Viral/analysis , Female , Fetal Diseases/drug therapy , Fetal Diseases/virology , Follow-Up Studies , Humans , Immunoglobulins/therapeutic use , Immunoglobulins, Intravenous , Infant, Newborn , Infectious Disease Transmission, Vertical/prevention & control , Polymerase Chain Reaction , Pregnancy , Retrospective Studies , Treatment Outcome
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