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To determine the association between a delay in anterior cruciate ligament reconstruction (ACLR), age, sex, body mass index (BMI) and cartilage injuries, meniscus injuries, meniscus repair, and abnormal prereconstruction laxity.Patients who underwent primary ACLR at our institution from January 2005 to March 2017, with no associated ligament injuries, were identified. Logistic regression analyses were used to evaluate whether delay in ACLR, age, sex, and BMI were risk factors for cartilage and meniscus injuries, meniscus repair, and abnormal (side-to-side difference5 mm) prereconstruction laxity.A total of 3976 patients (mean age 28.6 ± 10.6 years, range 10-61 years) were included. The risk of cartilage injury increased with a delay in ACLR (12-24 months: odds ratio [OR] 1.20; 95% confidence interval [CI] 1.05-1.29; P = .005; and24 months: OR 1.20; 95% CI 1.11-1.30; P.001) and age ≥30 years (OR 2.27; 95% CI 1.98-2.60; P.001). The risk of medial meniscus (MM) injury increased with a delay in ACLR (12-24 months: OR 1.20; 95% CI 1.07-1.29; P = .001; and24 months: OR 1.22; 95% CI 1.13-1.30; P.001), male sex (OR 1.16; 95% CI 1.04-1.30; P = .04) and age ≥30 years (OR 1.20; 95% CI 1.04-1.33; P = .008). The risk of lateral meniscus (LM) injury decreased with a delay in ACLR of3 months and age ≥30 years (OR 0.75; 95% CI 0.66-0.85; P .001), whereas it increased with male sex (OR 1.32; 95% CI 1.22-1.41; P.001). MM repairs relative to MM injury decreased with a delay in ACLR (6-12 months: OR 0.70; 95% CI 0.54-0.92; P = .01; 12-24 months: OR 0.69; 95% CI 0.57-0.85; P.001;24 months: OR 0.61; 95% CI 0.52-0.72; P.001) and age ≥30 years (OR 0.60; 95% CI 0.48-0.74; P .001). LM repairs relative to LM injury only decreased with age ≥30 years (OR 0.34; 95% CI 0.26-0.45; P.001). The risk of having abnormal knee laxity increased with a delay in ACLR of6 months and MM injury (OR 1.52; 95% CI 1.16-1.97; P = .002), whereas it decreased with a BMI of ≥25 (OR 0.68; 95% CI 0.52-0.89; P = .006).A delay in ACLR of12 months increased the risk of cartilage and MM injuries, whereas a delay of6 months increased the risk of abnormal prereconstruction laxity and reduced the likelihood of MM repair. To reduce meniscus loss and the risk of jeopardizing knee laxity, ACLR should be performed within 6 months after the injury.Level III, retrospective therapeutic comparative study.

Background:Early functional mobilization (EFM) may improve patient outcome after Achilles tendon rupture (ATR). However, whether EFM affects patient outcome via changes in tendon elongation, thickening, or calf muscle atrophy is unknown.Purpose:To analyze differences in tendon and muscle morphology recovery over time between groups treated with EFM or standard treatment after ATR repair.Study Design:Cohort study; Level of evidence, 2.Methods:This prospective cohort study included 86 patients (20 women) with ATR repair who had a mean (SD) age of 39.3 (8.2) years and were part of a larger prospective randomized controlled trial. Patients were postoperatively randomized to immediate postoperative weightbearing and ankle motion (EFM group) or to immobilization in a below-knee plaster cast for 2 weeks (control group). Patient-reported and functional outcomes were assessed at 6 and 12 months with the Achilles Tendon Total Rupture Score and the heel-rise test for endurance. At 2 and 6 weeks and 6 and 12 months postoperatively, B-mode ultrasound imaging was performed to assess the length and cross-sectional area (CSA) of the Achilles tendon, the gastrocnemius CSA, as well as the thickness of soleus.Results:The Achilles Tendon Total Rupture Score for the EFM and control groups were 65.8 (18.7) and 56.8 (20.1; P = .045), respectively, at 6 months and 79.6 (15.8) and 78.9 (17.2; P = .87), respectively, at 12 months. At 2 weeks, tendon elongation was significantly more pronounced in the EFM group as compared with the control group (mean side-to-side difference, 1.88 cm vs 0.71 cm; P = .005). Subsequently, tendon elongation increased in the control group while it decreased in the EFM group so that at 6 and 12 months no significant differences between groups were found. Mean Achilles tendon elongation at 1 year was 1.73 (1.07) cm for the EFM group (n = 55) and 1.67 (0.92) cm for the control group (n = 27), with a mean difference of 0.06 cm (95% CI, 0.54 to –0.42; P = .80). Achilles tendon CSA and calf muscle atrophy displayed no significant differences between the groups; however, significant changes were demonstrated over time ( P ≤ .001) in both groups.Conclusion:EFM results in more Achilles tendon elongation at early healing, but this difference subsides over time. EFM does not seem to affect patient outcome via changes in tendon elongation, thickening, or calf muscle atrophy.Registration:NCT02318472 (ClinicalTrials.gov identifier).

Purpose To analyse the incidence, types and risk factors for reoperation within 2 years of primary anterior cruciate ligament reconstruction (ACLR). Methods Our clinic registry was used to identify primary ACLRs, performed from 2005 to 2015, and reoperations performed on the ipsilateral knee within 2 years at our institution. Reoperations were identified using procedural codes and analysis of medical records. A logistic regression analysis was used to evaluate risk factors for reoperation. Results A total of 6030 primary ACLRs were included. A total of 1112 (18.4%) reoperations performed on 1018 (16.9%) primary ACLRs were identified. The most common reoperations were screw removal (n = 282, 4.7%), meniscus procedures (n = 238, 3.9%), cyclops removal/notchplasty (n = 222, 3.7%) and reoperations due to graft rupture (n = 146, 2.4%), including revision ACLR. Age P P P P = 0.005) and lateral meniscus repair (OR 1.38; 95% CI 1.03–1.85; P = 0.02) at primary ACLR were found to be risk factors for reoperation. Conclusion One sixth of all primary ACLRs underwent reoperation due to complications or new injuries within 2 years. The most common reoperations were screw removal, meniscus procedures, cyclops removal/notchplasty and reoperations due to graft rupture, including revision ACLR. Younger age ( Level of evidence III.

Purpose The primary aim of this study was to assess the relationship between the metabolites lactate and pyruvate in the healing tendon after Achilles tendon rupture (ATR) and patient-reported outcome at 6 and 12 months. A secondary aim was to evaluate which underlying factors regulate lactate and pyruvate concentrations. Methods Lactate and pyruvate concentrations were measured two weeks post-operatively in both the healing- and healthy Achilles tendon in 109 patients (90 men, 19 women; mean age 40 ± 7.9 years). Patient demographics, degree of physical activity, timing of surgery, operation time, patient-reported loading and step counts were investigated in relation to metabolite concentrations. At 6 and 12 months, the Achilles tendon Total Rupture Score (ATRS) questionnaire was used to assess patient outcome. Results The mean number of steps taken during the post-operative days 1–10 was the only factor significantly related to the mean concentration of lactate (R2 = 0.34, p = 0.038), and pyruvate (R2 = 0.46, p = 0.006). Pyruvate was demonstrated as the only factor significantly associated with ATRS at both 6 months (R2 = 0.32, p = 0.003) and at 12 months (R2 = 0.37, p = 0.004) using multiple linear regression. Conclusion The mean concentration of pyruvate during early ATR healing may predict patient outcome at 6 and 12 months post-operatively and possibly be used as a biomarker of healing. Early mobilization with an increased number of steps taken is an important clinical strategy to improve the metabolite concentrations during healing. Level of evidence III

Purpose The aim of this study was to investigate whether patient subjective and functional outcomes after Achilles tendon rupture (ATR) are related to deep venous thrombosis (DVT) during leg immobilization. Methods A cohort study with prospectively collected randomized data was conducted between 2010 and 2017. Two-hundred and fifty-one Patients with an Achilles tendon rupture (mean age = 41 ± 8), treated with uniform surgical techniques, were retrospectively analyzed. DVT incidence at 2 and 6 weeks was assessed using compression duplex ultrasound. At 12 months patient-reported outcomes were assessed using the Achilles tendon Total Rupture Score (ATRS), Foot- and Ankle Outcome Score (FAOS), Physical Activity Scale (PAS) and functional outcome with the calf-muscle endurance test. ANOVA analyses were used and adjusted for assumed confounding factors (patient age, sex, BMI and rehabilitation). Results The total DVT incidence was 122 out of 251 (49%). Patients suffering a DVT exhibited significantly lower ATRS at 1 year compared to patients without DVT (mean 76 vs 83, 95% CI 71–79 vs 80–87; p 80) compared to 51% (95% CI 41–61%) of the patients sustaining a DVT (p p p Conclusion Sustaining a DVT during leg immobilization significantly impairs patient-reported outcome at 1 year after surgical repair of ATR. Level of evidence III.

Background Acute Achilles tendon rupture (ATR) is a frequently disabling injury, which exhibits unclear variability in long-term functional and patient-reported outcomes. Biomarkers from early healing, which have been shown to be prognostic of long-term outcome would facilitate the development of improved treatment methods. Hypothesis/purpose The aim of this study was to assess essential metabolites pyruvate and its product lactate, as early biomarkers in relation to long-term functional- and patient-reported outcome after ATR. Study design Prospective cohort study. Methods A total of 124 patients (103 men, 21 women; mean age 40 ± 7 years) with ATR, treated with uniform anesthetic and surgical technique, were prospectively assessed. At two weeks post-injury pyruvate and lactate concentrations were assessed in both the injured and uninjured limbs using microdialysis followed by enzymatic quantification. The ratios of the concentration in the injured versus uninjured limb of pyruvate (pyruvate-r) and lactate (lactate-r) were calculated as well as the lactate/pyruvate ratios (L/P-r). At 12 months, patient-reported outcome was examined using self-reported questionnaires; Achilles tendon Total Rupture Score (ATRS), Foot and Ankle Outcome Score (FAOS), and physical activity score. At 12 months, functional outcome was studied using the validated heel-rise test. Results Elevated pyruvate-r, at two weeks, was significantly associated with total ATRS (R = 0.254, P = 0.028), less loss in physical activity (R = 0.241, P = 0.039), less experience of pain in FAOS (R = 0.275, P = 0.032), and a higher number of heel-rise repetitions on injured side (R = 0.230, P = 0.040) at 12 months. Increased lactate-r was related with less strength limitations in the calf (R = 0.283, P = 0.011), while the elevated lactate-pyruvate ratio, notably, was related to more limitations in walking on uneven surface (R = -0,243, P = 0.027). The findings were verified by multiple linear regression taking confounding factors into consideration. Conclusion This study established that the metabolite pyruvate is a good potential biomarker, prognostic of patient outcome at the one-year follow-up after ATR surgery. These novel findings suggest that local biomarkers could be developed at an early-stage screen for new ATR treatments.

To evaluate factors affecting the risk of contralateral anterior cruciate ligament reconstruction (ACLR) within 5 years of primary ACLR.Primary ACLRs performed at Capio Artro Clinic, Stockholm, Sweden, during the period 2005-2014, were reviewed. The outcome of the study was the occurrence of contralateral ACLR within 5 years of primary ACLR. Univariable and multivariable logistic regression analyses were employed to identify preoperative [age, gender, body mass index (BMI), time from injury to surgery, pre-injury Tegner activity level], intraoperative [graft type, medial meniscus (MM) and lateral meniscus (LM) resection or repair, cartilage injury] and postoperative [limb symmetry index (LSI) for quadriceps and hamstring strength and single-leg-hop test performance at 6 months] risk factors for contralateral ACLR.A total of 5393 patients who underwent primary ACLR were included. The incidence of contralateral ACLR within 5 years was 4.7%. Univariable analysis revealed that age ≥ 25 years, BMI ≥ 25 kg/mOlder age (≥ 25 years) and delayed primary ACLR (≥ 12 months) reduced the odds, whereas a symmetrical (LSI ≥ 90%) 6-month single-leg-hop test increased the odds of contralateral ACLR within 5 years of primary ACLR. Knowledge of the factors affecting the risk of contralateral ACLR is important when it comes to the appropriate counselling for primary ACLR. Patients should be advised regarding factors affecting the risk of contralateral ACLR.Level III.

Background: Septic arthritis (SA) after anterior cruciate ligament reconstruction (ACLR) is a rare yet severe complication. The samples in previous studies have been small and without nationwide coverage, making analysis uncertain with a risk of bias. Conclusions to recommend preventive measures are therefore difficult to draw, and it has not been possible to perform a comprehensive risk factor analysis. Purpose: To study the incidence of SA after ACLR in a large, nationwide population and to study the risk factors for SA after ACLR. Study Design: Case-control study; Level of evidence, 3. Methods: All ACLRs, primary and revision, in the Swedish Knee Ligament Registry between 2006 and 2013 were linked with data from the Swedish National Board of Health and Welfare. The incidence of SA events was determined using entries from the day of surgery until 90 days postoperatively based on diagnosis codes and the prescription of antibiotics. All events of SA were verified via a review of medical records. Risk factors were analyzed based on data from the registries. Descriptive statistics were used to describe the findings, while logistic regression analysis was used for the risk analysis. Results: The cohort consisted of 26,014 primary and revision ACLRs. During the study period, 298 events of SA (1.1%) were identified. The high-volume units (≥500 ACLRs during the study period) had a distribution of SA between 2 and 47 (0.2%-2.9%). Independent risk factors of SA were male sex (OR, 1.65; 95% CI, 1.28-2.13), operating time ≥70 minutes (OR, 1.83; 95% CI, 1.42-2.36), hamstring tendon autograft (OR, 2.23; 95% CI, 1.21-4.08), and clindamycin as perioperative antibiotic prophylaxis (OR, 1.94; 95% CI, 1.10-3.41). Conclusion: The incidence of SA after ACLR in this nationwide cohort was 1.1%. Male sex, hamstring tendon autografts, and a longer operating time were all independent risk factors for SA. The use of clindamycin as perioperative antibiotic prophylaxis was a risk factor compared with the use of cloxacillin. Some high-volume units had a very low infection rate (0.2%).

Background Poisoned patients treated in the Intensive Care Unit are common, representing up to 6% of all ICU admissions. The in-hospital mortality is generally low but little is known about the long-term mortality in these patients. The aim of this study was to describe long-term mortality and cause of death in patients treated in the ICU for poisoning. Method A national observational study based on three registers: the National Patient Register, the Swedish Intensive Care Register and the Cause of Death Register. All patients ≥19 years admitted to a Swedish Intensive Care Unit between January 1, 2010 and December 31, 2011 with an ICD-10 code for poisoning were included. Results A total of 6730 patients were included. The one-year mortality was 4.5% (n = 303), with an overweight of men among the deceased (59.1%, P = 0.002). Patients aged 19-39 years had a 48 times increased one-year mortality compared to the age-matched general population and 94% of these patients died from suicide and/or accident, of which 70% were from a new poisoning. The two-year mortality was 7.2%. Women have a slightly higher overall long-term survival over two years (P Conclusion The risk of premature death is markedly increased in younger patients one and two years after an ICU hospitalisation for non-fatal poisoning compared to the general population. A large majority die due to a new poisoning incident despite a previously known recent severe poisoning. Editorial comment Admission to ICU with poisoning, and particularly self-poisoning, may be associated with long-term mortaliity. In this study of 6730 patients admitted to a Swedish ICU for poisoning, the in-hospital mortality was low for that admission, but there is an increased risk of later mortality in young patients one and two years after hospital discharge.

To identify preoperative and intraoperative factors associated with abnormal anterior knee laxity after primary anterior cruciate ligament (ACL) reconstruction.A total of 5,462 patients who underwent primary ACL reconstruction at our institution from January 2000 to October 2015, with no associated ligament injuries, were included. Demographic data, information regarding graft used, concomitant meniscal surgery, and instrumented laxity were reviewed. The KT-1000 arthrometer, with an anterior tibial load of 134 N, was used to evaluate knee laxity preoperatively and at 6-month follow-up. Patients were considered to have abnormal anterior knee laxity if the postoperative side-to-side difference was greater than 5 mm (International Knee Documentation Committee laxity grade C or D). A logistic regression analysis was used to evaluate whether patient age, gender, preoperative knee laxity, graft type, and presence of medial or lateral meniscus resection or suture were risk factors for abnormal knee laxity.The risk of having abnormal anterior knee laxity was significantly related to younger age (30 years) (odds ratio [OR] 1.44; 95% confidence interval [CI], 1.07-1.95; P = .016), preoperative side-to-side difference greater than 5 mm (OR, 6.57; 95% CI, 4.94-8.73; P.001), hamstring tendon graft (OR, 1.83; 95% CI, 1.08-3.11; P = .025), and medial meniscus resection (OR, 2.22; 95% CI, 1.61-3.07; P.001). Female gender (OR, 0.96; 95% CI, 0.72-1.28; P = .80), medial meniscus suture (OR, 0.82; 95% CI 0.42-1.62; P = .58), lateral meniscus resection (OR, 0.73; 95% CI 0.49-1.10; P = .13), and lateral meniscus suture (OR, 0.99; 95% CI, 0.46-2.11; P = .98) were not associated with increased risk of abnormal knee laxity.Age less than 30 years, preoperative side-to-side difference greater than 5 mm, hamstring tendon graft, and medial meniscus resection are associated with increased risk of having abnormal anterior knee laxity 6 months after primary ACL reconstruction.Level III, retrospective comparative trial.

Purpose To evaluate and compare knee laxity and functional knee outcome between primary and revision anterior cruciate ligament (ACL) reconstruction in the same cohort of patients. Methods Patients who underwent primary and revision ACL reconstruction (ACLR) at Capio Artro Clinic, Stockholm, Sweden, from 2000 to 2015, were identified in our local database. Inclusion criteria were: same patients who underwent primary hamstring tendons (HT) and revision bone–patellar tendon–bone (BPTB) autograft ACLR, no associated ligament injuries and no contralateral ACL injuries/reconstructions. The cause of revision ACLR was graft rupture for all patients. The KT-1000 arthrometer, with an anterior tibial load of 134-N, was used to evaluate knee laxity preoperatively and 6-month postoperatively. The Knee Injury and Osteoarthritis Outcome Score (KOOS) was collected preoperatively and at the 1-year follow-up. Results A total of 118 patients with primary and revision ACLR arthrometric laxity measurements were available (51.0% males; mean age at primary ACLR 21.7 ± 7.1 years and revision ACLR 24.3 ± 7.5 years). The mean preoperative and postoperative anterior side-to-side (STS) difference values were not significantly different between primary and revision ACLR. However, primary ACLR showed a significantly higher frequency of postoperative anterior STS difference > 5 mm compared with revision ACLR (8.4 vs 5.0%; P = 0.02). The KOOS was available for primary and revision ACLR for 73 patients (55.4% males; mean age at primary ACLR 21.6 ± 7 years and revision ACLR 24.7 ± 7.3 years). Preoperatively, revision ACLR showed significantly higher scores in all KOOS subscales, except for the activity of daily living (ADL) subscale. For the primary ACLR, the improvement from preoperatively to the 1-year follow-up was significantly greater in all KOOS subscales and, the postoperative scores were superior for Pain, ADL and Sports subscales compared with revision ACLR. Conclusions The findings of this study showed that anterior knee laxity is restored with revision BPTB autograft ACLR after failed primary HT autograft ACLR, in the same cohort of patients. However, revision ACLR showed a significantly inferior functional knee outcome compared with primary ACLR. It is important for clinicians to inform and set realistic expectations for patients undergoing revision ACLR. Patients must be aware of the fact that having revision ACLR their knee function will not improve as much as with primary ACLR and the final postoperative functional outcome is inferior. Level of evidence Retrospective cohort study, Level III.

Objective We examined whether established metabolic risk genetic variants in the population confer a risk for increased waist circumference in patients with schizophrenia spectrum disorders and also an association with schizophrenia spectrum disorders irrespective of waist circumference. Patients and methods We analyzed the association in (i) a case–case model in which patients with schizophrenia spectrum disorder with increased waist circumference (≥80 cm for women and ≥94 cm for men) (n=534) were compared with patients with normal waist circumference (

Purpose and hypothesis Adjuvant intermittent pneumatic compression (IPC) during leg immobilization following Achilles tendon rupture (ATR) has been shown to reduce the risk of deep venous thrombosis. The purpose of this study was to investigate whether IPC can also promote tendon healing. Methods One hundred and fifty patients with surgical repair of acute ATR were post-operatively leg immobilized and prospectively randomized. Patients were allocated for 2 weeks of either adjuvant IPC treatment (n = 74) or treatment-as-usual (n = 74) in a plaster cast without IPC. The IPC group received 6 h daily bilateral calf IPC applied under an orthosis on the injured side. At 2 weeks post-operatively, tendon healing was assessed using microdialysis followed by enzymatic quantification of tendon callus production, procollagen type I (PINP) and type III (PIIINP) N-terminal propeptide, and total protein content. 14 IPC and 19 cast patients (control group) consented to undergo microdialysis. During weeks 3–6, all subjects were leg-immobilized in an orthosis without IPC. At 3 and 12 months, patient-reported outcome was assessed using reliable questionnaires (ATRS and EQ-5D). At 12 months, functional outcome was measured using the validated heel-rise test. Results At 2 weeks post-rupture, the IPC-treated patients exhibited 69% higher levels of PINP in the ruptured Achilles tendon (AT) compared to the control group (p = 0.001). Interestingly, the IPC-treated contralateral, intact AT also demonstrated 49% higher concentrations of PINP compared to the non-treated intact AT of the plaster cast group (p = 0.002). There were no adverse events observed associated with IPC. At 3 and 12 months, no significant (n.s.) differences between the two treatments were observed using patient-reported and functional outcome measures. Conclusions Adjuvant IPC during limb immobilization in patients with ATR seems to effectively enhance the early healing response by upregulation of collagen type I synthesis, without any adverse effects. Whether prolonged IPC application during the whole immobilization period can also lead to improved long-term clinical healing response should be further investigated. The healing process during leg immobilization in patients with Achilles tendon rupture can be improved through adjuvant IPC therapy, which additionally prevents deep venous thrombosis. Level of evidence Randomized controlled trial, Level I. Electronic supplementary material The online version of this article (doi:10.1007/s00167-017-4621-8) contains supplementary material, which is available to authorized users.

Purpose The relationship between the duration of operative time (DOT), healing response and patient outcome has not been previously investigated. An enhanced healing response related to DOT may potentiate repair processes, especially in hypovascular and sparsely metabolized musculoskeletal tissues such as tendons. This study aimed to investigate the association between DOT and the metabolic healing response, patient-reported outcome and the rate of post-operative complications after acute Achilles tendon injury. Methods Observational cohort, cross-sectional study with observers blinded to patient grouping. A total of two-hundred and fifty-six prospectively randomized patients (210 men, 46 women; mean age 41 years) with an acute total Achilles tendon rupture all operated on with uniform anaesthetic and surgical technique were retrospectively assessed. At 2 weeks post-operatively, six metabolites were quantified using microdialysis. At 3, 6 and 12 months, patient-reported pain, walking ability and physical activity were examined using self-reported questionnaires, Achilles tendon total rupture score, foot and ankle outcome score and physical activity scale. At 12 months, functional outcome was assessed using the heel-rise test. Complications, such as deep venous thrombosis, infections and re-operations, were recorded throughout the study. Results Patients who underwent longer DOT exhibited higher levels of glutamate (p = 0.026) and glycerol (p = 0.023) at 2 weeks. At the 1-year follow-up, longer DOT was associated with significantly less loss in physical activity (p = 0.003), less pain (p = 0.009), less walking limitations (p = 0.022) and better functional outcome (p = 0.014). DOT did not significantly correlate with the rate of adverse events, such as deep venous thrombosis, infections or re-ruptures. Higher glutamate levels were associated with less loss in physical activity (p = 0.017). All correlations were confirmed by multiple linear regressions taking confounding factors into consideration. Conclusion The results from this study suggest a previously unknown mechanism, increased metabolic response associated with longer DOT, which may improve patient outcome after Achilles tendon rupture surgery. Allowing for a higher amount of traumatized tissue, as reflected by up-regulation of glycerol in patients with longer DOT, may prove to be an important surgical tip for stimulation of repair of hypometabolic soft tissue injuries, such as Achilles tendon ruptures. Level of evidence II. Electronic supplementary material The online version of this article (doi:10.1007/s00167-017-4606-7) contains supplementary material, which is available to authorized users.

PurposeThe use of prophylaxis for thromboembolism and infection in anterior cruciate ligament (ACL) reconstruction is not well documented and no general guidelines have been established. The aim of this study was to evaluate the ACL surgeons’ individual strategies of thromboprophylaxis, use of prolonged antibiotic prophylaxis and vancomycin-soaked ACL grafts, and if its use is supported in the current literature. Additionally, the rationale for use of tourniquet was analysed.MethodsQuestionnaires were distributed to all Swedish ACL surgeons who are registered in the Swedish Knee Ligament Register (SKLR), asking about prescription of thromboprophylaxis, prolonged antibiotic prophylaxis, the use of vancomycin-soaked graft and the use of a tourniquet during surgery. The responses were assessed for agreement and the thromboprophylaxis data were analysed in relation to the 2016 SKLR data.Results115 (75%) ACL surgeons responded to the survey. 81.7% prescribed thromboprophylaxis only when risk factors, such as history of thrombosis and the use of oral contraceptives, were present. Female gender, older age and admitted patient were considered the risk factors with the lowest impact. The respondents were generally restrictive regarding the use of prolonged antibiotic prophylaxis. The use of vancomycin-soaked graft was used by only nine (8%) surgeons representing 406 (13%) of the surgeries.ConclusionSwedish ACL surgeons are generally restrictive using thromboprophylaxis and only when risk factors are present. However, there is a lack of consensus in how to weigh the different risk factors and it does not completely adhere to the existing literature.Prolonged antibiotic prophylaxis is rarely used and the use of vancomycin soaking of graft is very limited and applies only to a small number of surgeons. The use of tourniquet is common. There is a need for ACL-specific guidelines regarding the use of thromboprophylaxis.Level of evidenceIV.

Purpose The hypothesis was that early functional mobilization would reduce the incidence of deep venous thrombosis (DVT) during leg immobilization after Achilles tendon rupture surgery. A secondary aim was to evaluate if the amount of weightbearing and daily steps influenced the risk of sustaining a DVT. Methods One-hundred and fifty patients with Achilles tendon rupture repair were randomized to treatment with early functional mobilization, encouraging full weightbearing and ankle motion in orthosis, or treatment-as-usual, i.e., 2 weeks of unloading in plaster cast followed by 4 weeks weightbearing in orthosis. At 2 and 6 weeks postoperatively, all patients were screened for DVT using compression duplex ultrasound. During the first 2 weeks postoperatively, patient-reported loading, pain and step counts were assessed. Results At 2 weeks, 28/96 (29%) of the patients in early functional mobilization group and 15/49 (31%) in the control group (n.s) had sustained a DVT. At 6 weeks, the DVT rate was 35/94 (37%) in the early functional mobilization and 14/49 (29%) in the control group (n.s). During the first postoperative week, the early functional mobilization group reported low loading and higher experience of pain vs. the control group (p = 0.001). Low patient-reported loading ≤ 50% (OR = 4.3; 95% CI 1.28–14.3) was found to be an independent risk factor for DVT, in addition to high BMI and higher age. Conclusions Early functional mobilization does not prevent the high incidence of DVT during leg immobilization in patients with Achilles tendon rupture as compared to treatment-as-usual. The low efficacy of early functional mobilization is mainly explained by postoperative pain and subsequent low weightbearing. To minimize the risk of DVT, patients should be encouraged to load at least 50% of body weight on the injured leg 1 week after surgery. Level of evidence Therapeutic, level 1

Aims Patients with an acute Achilles tendon rupture (ATR) take a long time to heal, have a high incidence of deep vein thrombosis (DVT) and widely variable functional outcomes. This variation in outcome may be explained by a lack of knowledge of adverse factors, and a subsequent shortage of appropriate interventions. Patients and Methods A total of 111 patients (95 men, 16 women; mean age 40.3, standard deviation 8.4) with an acute total ATR were prospectively assessed. At one year post-operatively a uniform outcome score, Achilles Combined Outcome Score (ACOS), was obtained by combining three validated, independent, outcome measures: Achilles tendon Total Rupture Score, heel-rise height test, and limb symmetry heel-rise height. Predictors of ACOS included treatment; gender; age; smoking; body mass index; time to surgery; physical activity level pre- and post-injury; symptoms; quality of life and incidence of DVT. Results There were three independent variables that correlated significantly with the dichotomised outcome score (ACOS), while there was no correlation with other factors. An age of less than 40 years old was the strongest independent predictor of a good outcome one year after ATR (odds ratio (OR) 0.20, 95% confidence interval (CI) 0.08 to 0.51), followed by female gender (OR) 4.18, 95% CI 1.01 to 17.24). Notably, patients who did not have a DVT while immobilised post-operatively had a better outcome (OR 0.31, 95% CI 0.12 to 0.80). Conclusion Over the age of 40 years, male gender and having a DVT while immobilised are independent negative predictors of outcome in patients with an acute ATR. Cite this article: Bone Joint J 2016;98-B:1635–41.

Background: Patient outcome after an acute Achilles tendon rupture (ATR) continues to be suboptimal and heterogeneous. Thus, prognostic factors are called for to optimize evidence-based ATR treatment protocols; however, the influence of delayed time from injury to surgery (TTS) on patient outcome after ATR remains largely unknown. Purpose: To determine whether patient outcomes and adverse events after surgical repair of acute ATR are related to delayed TTS. Study Design: Cohort study; Level of evidence, 3. Methods: Two hundred twenty-eight patients with ATR who were treated with uniform anesthetic and surgical techniques, within 10 days after injury, were retrospectively assessed. TTS depended on availability of the operating theater, and neither surgeon nor patient could influence the TTS. Patients were assigned to 1 of 3 groups: short TTS (72 hours). Patient-reported outcome at 1 year was assessed with the validated Achilles tendon Total Rupture Score, with scores higher than 80 on a 0- to 100-point scale indicating an overall good outcome. The incidences of adverse events (perioperative and postoperative) and deep venous thrombosis were assessed. Results: Short TTS was significantly associated with increased rate of good outcome and reduced risk of adverse events. Seventy-one percent (95% CI, 60%-83%) of the patients with short TTS attained a good outcome compared with 44% (95% CI, 33%-56%) of the patients with long TTS ( P = .002), with the intermediate TTS group in between, 63% (95% CI, 47%-78%). The incidence of adverse events was significantly reduced among patients with short TTS, 1.4% (95% CI, 1%-4%) compared with those with intermediate TTS, 11% (95% CI, 2%-21%) ( P = .035) and those with long TTS, 14.8% (95% CI, 7%-23%) ( P = .003). The risk of sustaining a deep venous thrombosis was not statistically significantly different among the 3 groups ( P = .15). Conclusion: Patients with acute ATR undergoing operation within 48 hours after injury had better outcomes and a lower number of adverse events compared with patients undergoing operation after 72 hours. These results align with evidence-based recommendations from other surgical disciplines and should be used as guidelines for optimizing ATR treatment protocols. Registration: NTC01317160 (ClinicalTrials.gov identifier).

To analyse the non-response group in the Swedish Knee Ligament Register (SKLR). All 3588 patients in the SKLR who had undergone anterior cruciate ligament surgery in 2010 were included. Respondents (n = 1865) and non-respondents (n = 1723) at the 2-year follow-up survey were assessed for potential differences in demographics and baseline data. KOOS/EQ5D questionnaires were sent to non-respondents together with a non-response survey asking questions about reasons for dropout. Respondents had a significantly higher mean age (27.8 years, range 9–64) than non-respondents (25.9 years, range 12–65) (p

Having three or more persisting (i.e.3 months) post-concussion symptoms (PCS) affects a significant number of patients after a mild traumatic brain injury (mTBI). A common complaint is cognitive deficits. However, several meta-analyses have found no evidence of long-term cognitive impairment in mTBI patients. The study sought to answer two questions: first, is there a difference in cognitive performance between PCS and recovered mTBI patients? Second, is lower cognitive reserve a risk factor for developing PCS?Prospective inception cohort study.One hundred and twenty-two adult patients were recruited from emergency departments within 24 hours of an mTBI. Three months post-injury, participants completed the Rivermead Post Concussion Symptoms Questionnaire and a neuropsychological assessment. A healthy control group (n = 35) were recruited. The estimate of cognitive reserve was based upon sub-test Information from Wechsler Adult Intelligence Scale and international classifications of educational level and occupational skill level.mTBI patients showed reduced memory performance. Patients with lower cognitive reserve were 4.14-times more likely to suffer from PCS.mTBI may be linked to subtle executive memory deficits. Lower cognitive reserve appears to be a risk factor for PCS and indicates individual vulnerabilities.

BACKGROUND Poisoning represents a significant part of admissions to intensive care units. The aim of this nationwide study was to describe recent national quality register data of demographics and mortality for these patients. METHOD A retrospective national observational study including all patients over 19 years admitted to an ICU in Sweden, between 1 January 2010 and 31 December 2011, with an ICD-10 code for poisoning. The data were collected from three national registers (The Swedish Intensive Care Register, The National Patient Register, and The Cause of Death Register). RESULTS The incidence of ICU-treated poisonings was 43/100,000. Twenty-one per cent (n = 8155) of all poisoned patients seeking medical care were admitted to the ICU. Their median age was 38 years (q1-q3: 26-51), as many men as women and 46.5% (n = 3790) had a previous registered poisoning. A mix of different substances was the most common type of suspected poisoning (29.7%, n = 2424). The in-hospital mortality was 1.9% and was correlated to invasive mechanical ventilation (OR 6.91 CI 95% 4.59-10.42), age > 40 (OR 4.54 CI 95% 2.86-7.21) and no previous hospitalisation for poisoning (OR 3.23 CI 95% 2.06-5.07). For 78.3% (n = 119) of the deceased patients, the fatal poisoning was their first diagnosed poisoning. The 30-day mortality was 2.7%, a majority died from poisoning (P

Cognitive deficits represent a significant characteristic of schizophrenia. However, a majority of the clinical studies have been conducted in antipsychotic drug treated patients. Thus, it remains unclear if significant cognitive impairments exist in the absence of medication. This is the first meta-analysis of cognitive findings in drug-naïve patients with schizophrenia. Cognitive data from 23 studies encompassing 1106 patients and 1385 controls published from 1992 to 2013 were included. Tests were to a large extent ordered in cognitive domains according to the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) battery. Analysis was performed with STATA using the random-effects model and heterogeneity as well as Egger's publication bias was assessed. Overall the results show that patients performed worse than healthy controls in all cognitive domains with medium to large effect sizes. Verbal memory, speed of processing and working memory were three of the domains with the greatest impairments. The pattern of results is in line with previous meta-analytic findings in antipsychotic treated patients. The present meta-analysis confirms the existence of significant cognitive impairments at the early stage of the illness in the absence of antipsychotic medication.

Improved Health-related quality of life (HRQoL) is an alternative treatment goal for individuals with psychosis, who have up to two times greater prevalence of type 2 diabetes, hypertension and obesity than the general population. Aim: to compare HRQoL in patients with psychosis, especially schizophrenia, with a reference sample and explore the relationship between HRQoL and metabolic risk factors in these patients. Methods: a prospective cohort study was carried out in specialized psychiatric outpatient departments in Sweden. The patients were invited consecutively. A prospective population-based study of public health in the south-east of Sweden served as reference group. Patients were assessed with psychiatric questionnaires that included Global Assessment of Functioning (GAF). Health-related quality of life was assessed using the questionnaire EQ5D, both for patients and the population, and several other health status outcomes were used. Results: At 73%, schizophrenia and schizoaffective disorder were the most common diagnoses in the patient group. The results in patients (n = 903) and population (n = 7238) showed significant differences in lower EQ5D among patients. According to the definition by the International Diabetes Federation (IDF), elevated blood pressure was the only metabolic risk associated with lower HRQoL in patients. Raised LDL-cholesterol levels were also significantly related to lower HRQoL. Conclusion: patients suffering from psychosis had significantly lower HRQoL regarding all components in EQ5D, except for the pain/discomfort component. Almost half of the patient group met the criteria for metabolic syndrome. According to the IDF criteria, elevated blood pressure was the only metabolic risk factor that had an impact on HRQoL.

Objective to compare early discharge with home care versus standard postpartum care in terms of mothers' sense of security; contact between mother, newborn and partner; emotions towards breast feeding; and breast-feeding duration at one and three months after birth. Design retrospective case-control study. Setting a labour ward unit in Stockholm, Sweden handling both normal and complicated births. Participants 96 women with single, uncomplicated pregnancies and births, and their healthy newborns. Intervention early discharge at 12–24 hours post partum with 2–3 home visits during the first week after birth. The intervention group consisted of women who had a normal vaginal birth ( n =45). This group was compared with healthy controls who received standard postnatal care at the hospital ( n =51). Instruments mothers' sense of security was measured using the Parents' Postnatal Sense of Security Scale. Contact between mother, child and father, and emotions towards breast feeding were measured using the Alliance Scale, and breast-feeding rates at one and three months post partum were recorded. Findings women in the intervention group reported a greater sense of security in the first postnatal week but had more negative emotions towards breast feeding compared with the control group. At three months post partum, 74% of the newborns in the intervention group were fully breast fed versus 93% in the control group ( p =0.021). Contact between the mother, newborn and partner did not differ between the groups. Conclusion early discharge with home care is a feasible option for healthy women and newborns, but randomised controlled studies are needed to investigate the effects of home care on breast-feeding rates.

Psychosis is associated with excess cardiovascular morbidity and mortality.To determine the prevalence of cardiovascular risk factors in patients with psychotic disorders compared with the population.731 consecutive patients with psychosis recruited from psychiatric outpatient clinics in Stockholm County, Sweden, were compared with 5580 individuals from a population study performed in the same area. The main outcome measures were waist circumference, body mass index (BMI) and fasting glucose.Mean waist circumference in patients vs. controls was for males 106 and 94 cm, respectively, and for females 97 and 85 cm, respectively (P0.001); mean fasting glucose in patients vs. controls was for males 5.8 and 5.2 mmol/l, respectively, and for females 5.6 and 4.8 mmol/l, respectively (P0.001). Comparisons were controlled for differences in age and family history of diabetes. Increased waist circumference was more common in psychotic patients compared with controls (OR = 3.99; 95% CI 3.09-5.15), controlling for fasting insulin, differences in gender, blood pressure, fasting glucose, family history of diabetes, age and tobacco use. Increased fasting blood glucose was also more common in psychotic patients (OR = 2.41; 95% CI 1.84-3.14) controlling for the same factors with the exception of fasting glucose and with the addition of increased waist circumference.Our study shows that the psychosis illness per se can be considered as a cardiovascular risk factor, independent of the traditional risk factors such as age and smoking.

Objective To evaluate the impact of personality, socio-demographic and obstetric factors on birth experience in a cohort of healthy first-time mothers. A second aim was to compare a visual analogue scale and Wijma Delivery Experience Questionnaire B as instruments evaluating birth experience. Material and methods In total, 541 women were prospectively followed from the end of pregnancy until 9 months postpartum. Socio-demographic, psychological and somatic data as well as personality characteristics were collected. Experience of delivery was measured with a visual analogue scale and with Wijma Delivery Experience Questionnaire B. Sixty-three variables were considered to be associated with the experience of delivery. Nineteen of these, found to be significantly associated with birth experience, were entered in a logistic regression analysis. Results The logistic regression analysis showed that a memory of pain during birth, high usage of analgesics postpartum, long hospital stay, worry in late pregnancy and high self-rated irritation were related to a more negative birth experience, while high confidence in the midwife was related to a more positive experience. The correlation between experiences of delivery rated by Wijma Delivery Experience Questionnaire B and the visual analogue scale was 0.52 (p Conclusion To help women to cope with pain during and after birth could be an important factor to improve birth experience. Even though the correlation between the visual analogue scale and Wijma Delivery Experience Questionnaire B was moderate, the visual analogue scale could be used as a simple method for screening of birth experience.

In previous studies of the present patients with schizophrenia, aberrant tyrosine transport across the fibroblast membrane was found. A low K(m), a kinetic factor indicating high affinity between tyrosine and the binding site at the cell membrane, was found to be associated with poor cognitive functions in patients. The present study aimed at investigating possible relationships between patients with schizophrenia and their first-degree relatives in aberrant tyrosine transport indicating that it may be a biological marker for the genetic susceptibility.Thirty-three parents, 13 fathers and 20 mothers, from 23 families with a schizophrenic patient agreed to enter the study. They underwent skin biopsies for fibroblast cultivation, neuropsychological and psychiatric investigations and were classified as family history positive or negative. Tyrosine transport kinetics (K(m) and V(max)) were calculated from in vitro trials of gradients of extracellular tyrosine concentrations in fibroblast cultures.An association between patients with schizophrenia and their mothers were found for a low K(m) indicating maternal inheritance. Mothers displaying a low K(m) performed worse on the neuropsychological tests compared to mothers with normal K(m). Corresponding relationships between a low K(m) and neurocognitive dysfunction had previously been found for the patients.An aberrant tyrosine transport across plasma membrane may constitute a biological marker for an endophenotype within the schizophrenia spectrum with low cognitive functioning. A plausible mode for genetic transmission is maternal inheritance.

The effectiveness of a brief intervention based on individual cognitive behavioral counseling in mothers with signs of postnatal depression was evaluated. Patients undergoing a complicated delivery were invited to participate. Women who scored above a cut-off level (>12) on Edinburgh Postnatal Depression Scale (EPDS) were randomized to either a brief individual cognitive behavioral counseling comprising three weekly 1 hour sessions (n = 33) or standard care (n = 34). Measures of postnatal depression were collected from EPDS, 1 month after birth and 1 month after treatment. Both groups showed a significant decline from baseline to follow-up, mean scores declined from 16.9 to 7.6 (intervention group) vs. 13.6 to 9.9 (control group; p < 0.001). There was a significant interaction effect (Group*Time) between the intervention and the control group showing a more rapid decline of EPDS scores for the intervention group (p < 0.001). The results suggest that brief cognitive behavioral counseling is an effective treatment in women at risk for developing postnatal depression.

ObjectiveProlonged post-concussive symptoms (PCS) affect a significant minority of patients withmild traumatic brain injury (mTBI). The aetiology is multifactorial depending on preinjury as well as peri-injury and postinjury factors. In this study, we examine outcome from an emotional reserve perspective.DesignProspective cohort study.SettingPatients were recruited from three emergency departments in major university hospitals in Stockholm, Sweden. Follow-up data were collected in an outpatient setting at one of the recruiting hospitals.Participants122 patients with a history of blunt head trauma (aged 15–65 years; admitted for mTBI within 24 hours after trauma (Glasgow Coma Scale score of 14–15, loss of consciousness ProcedureRecruitment in three emergency departments. Initial assessments were made within 1 week after the injury. Patients were mailed the follow-up questionnaires 1 year postinjury.Outcome measuresA psychiatric assessment was performed at 1 week post injury. The participants also completed a personality inventory, measures of psychological resilience, depression, anxiety and post-traumatic symptoms. One-year outcome was measured by the Rivermead Post Concussion Symptoms and the Rivermead Head Injury Follow-Up questionnaires.ResultsThe psychiatric assessment revealed more symptoms of anxiety, depression and post-traumatic symptoms in the acute stage for patients who later developed PCS.After 1 year, 94 participants were still in the programme (male/female 57/37) and 12% matched the extended criteria for PCS (≥3 symptoms and ≥2 disabilities). PCS patients reported more preinjury and concurrent psychiatric problems, lower level of functioning before the injury and experienced more stress. They showed higher somatic trait anxiety, embitterment, mistrust and lower level of psychological resilience than recovered participants.ConclusionIntrapersonal emotional reserve shape the emergence and persistence of PCS after mTBI.

Objective To investigate contact between mothers and their newborn child and study if there are differences between those who requested an elective caesarean section compared to women who had a vaginal birth and those who underwent an elective caesarean section due to obstetrical indication. The psychometric properties of a scale that measure the contact between mother and child were also investigated. Design A prospective cohort study. Setting Danderyd Hospital, Stockholm, Sweden. Sample 510 primiparas from three groups: women undergoing caesarean section on maternal request ( n =96), women undergoing caesarean section on obstetrical indication ( n =116) and women planning a vaginal delivery ( n =198). The later were further divided into subgroups; women who underwent assisted vaginal delivery ( n =35) and women who had an emergency caesarean section ( n =65). Methods The instrument used was the Alliance Scale. Main outcome measure The contact between mother and child in relation to mode of delivery. Results The contact with the child was rated as positive on all occasions: there were no significant differences between the groups. The relation to the partner was rated as positive at all occasions. Mothers with a vaginal delivery experienced breastfeeding less stressful than the mothers with a caesarean delivery. Three and nine months after delivery the mothers with a caesarean delivery on request reported more breastfeeding problems than mothers in the other groups. Mothers with a vaginal delivery rated less sadness at every occasion. Conclusion Mode of delivery does not seem to affect how mothers experience their contact towards the newborn child.

Aim: The aim of the present study was to investigate socioeconomic and demographic determinants of direct costs for psychiatric disorders in Sweden. The cost categories were inpatient and outpatient costs, and costs for psychopharmacological drugs. Two consecutive years, 2001 and 2002, were chosen as the study period. Methods: The study included all costs for admissions, visits and prescribed drugs for adults aged ≥18 years in 2001 and 2002 in Sweden. These costs were aggregated and analysed at the county level. A multiple linear regression analysis was fitted to the data, and independent variables (i.e. predictors) were chosen on the basis of previous studies. All cost types (e.g. total, inpatient, outpatient and drug costs) were analysed separately in different models. Results: Large variations in total direct psychiatric costs were found between county councils (for example, the total costs varied between euro112 and euro195 per capita in 2001). The results indicate that psychiatric outpatient care is less utilized in rural than in urban areas, and drugs are more often prescribed in rural areas than in urban areas. Areas with a high proportion of women and people aged 65 years and over are strong predictors of mental healthcare costs, i.e. variables showing that the higher the proportion, the lower the direct costs. Conclusions: Factors such as urbanization, gender, age and number of immigrants are reasons for differences in psychiatric direct costs. On the basis of these findings, it seems plausible to conclude that women, older patients and immigrants may benefit from specialized psychiatry, but that such healthcare does not seem to be provided in all regions.

Purpose Functional weight-bearing mobilization may improve repair of Achilles tendon rupture (ATR), but the underlying mechanisms and outcome were unknown. We hypothesized that functional weight-bearing mobilization by means of increased metabolism could improve both early and long-term healing. Methods In this prospective randomized controlled trial, patients with acute ATR were randomized to either direct post-operative functional weight-bearing mobilization (n = 27) in an orthosis or to non-weight-bearing (n = 29) plaster cast immobilization. During the first two post-operative weeks, 15°–30° of plantar flexion was allowed and encouraged in the functional weight-bearing mobilization group. At 2 weeks, patients in the non-weight-bearing cast immobilization group received a stiff orthosis, while the functional weight-bearing mobilization group continued with increased range of motion. At 6 weeks, all patients discontinued immobilization. At 2 weeks, healing metabolites and markers of procollagen type I (PINP) and III (PIIINP) were examined using microdialysis. At 6 and 12 months, functional outcome using heel-rise test was assessed. Results Healing tendons of both groups exhibited increased levels of metabolites glutamate, lactate, pyruvate, and of PIIINP (all p

Autism is a developmental, cognitive disorder clinically characterized by impaired social interaction, communication and restricted behaviours. The present study was designed to explore whether an abnormality in transport of tyrosine and/or alanine is present in children with autism. Skin biopsies were obtained from 11 children with autism (9 boys and 2 girls) fulfilling the DSM-IV diagnostic criteria for autistic disorder and 11 healthy male control children. Transport of amino acids tyrosine and alanine across the cell membrane of cultured fibroblasts was studied by the cluster tray method. The maximal transport capacity, V(max) and the affinity constant of the amino acid binding sites, K(m), were determined. Significantly increased V(max) for alanine (p=0.014) and increased K(m) for tyrosine (p=0.007) were found in children with autism. The increased transport capacity of alanine across the cell membrane and decreased affinity for transport sites of tyrosine indicates the involvement of two major amino acid transport systems (L- and A-system) in children with autism. This may influence the transport of several other amino acids across the blood-brain-barrier. The significance of the findings has to be further explored.

The purpose of this study was to investigate first-time mothers undergoing cesarean section in the absence of medical indication, their reason for the request, self-estimated health, experience of delivery, and duration of breastfeeding. We also aimed to study if signs of depression postpartum are more common in this group.In a prospective cohort study 357 healthy primiparas from two different groups, "cesarean section on maternal request" (n=91) and "controls planning a vaginal delivery" (n=266) completed three self-assessment questionnaires in late pregnancy, two days after delivery and 3 months after birth. Symptom scores from the Edinburgh postnatal depression scale at three months after birth were also investigated.Women requesting cesarean section experienced their health ass less good (p0.001) and were more often planning for one child only (p0.001). They more often reported anxiety for lack of support during labor (p0.001), for loss of control (p0.001), and concern for fetal injury/death (p0.001). After planned cesarean section women in this group reported a better birth experience compared to women planning a vaginal birth (p0.001). They were breastfeeding to a lesser extent three months after birth (p0.001). There were no differences in signs of postpartum depression between the groups three months after birth (p=0.878).The knowledge gained from this study may help in understanding why some women prefer to give birth with elective cesarean section. It also elucidates the need for awareness of professional support during vaginal birth.

Socioeconomic factors and previous experiences of delivery are known to influence pregnant women's fear of childbirth. The aim of this study was to investigate the associations between stable personality traits, fear of childbirth during late pregnancy, and experience of the delivery.Self-report questionnaires were completed twice, during gestation week 34-37, and at 1-week postpartum. Comparisons were made between 85 women who had sought help from a fear-of-childbirth team, and a group (n=177) from routine antenatal care. Correlations between fear of childbirth, personality variables and experience of childbirth were calculated.The women who had sought help tended to be more anxiety-prone, more short-tempered, and lower in socialisation, although within the normal range. In spite of counselling, they reported more intense fear of delivery and fear of pain compared with the comparison group. Women with intense fear of childbirth, who were low in socialisation and high in psychasthenia, had a more negative experience of their current childbirth.Women with intense fear of childbirth differ from other pregnant women also in personality. Methods for treating fear of childbirth should be further developed in order to diminish the risk of a negative birth experience.

Deep vein thrombosis is a common complication of immobilising the lower limb after surgery. We hypothesised that intermittent pneumatic compression (IPC) therapy in outpatients who had undergone surgical repair of acute ruptures of the Achilles tendon could reduce the incidence of this problem. A total of 150 patients who had undergone surgical repair of the Achilles tendon were randomised to either treatment with IPC for six hours per day (n = 74) under an orthosis or treatment as usual (n = 74) in a plaster cast without IPC. At two weeks post-operatively, the incidence of deep vein thrombosis was assessed using blinded, double-reported compression duplex ultrasound. At this point, IPC was discontinued and all patients were immobilised in an orthosis for a further four weeks. At six weeks post-operatively, a second compression duplex ultrasound scan was performed. At two weeks, the incidence of deep vein thrombosis was 21% in the treated group and 37% in the control group (p = 0.042). Age over 39 years was found to be a strong risk factor for deep vein thrombosis (odds ratio (OR) = 4.84, 95% confidence interval (CI) 2.14 to 10.96). Treatment with IPC, corrected for age differences between groups, reduced the risk of deep vein thrombosis at the two-week point (OR = 2.60; 95% CI 1.15 to 5.91; p =0.022). At six weeks, the incidence of deep vein thrombosis was 52% in the treated group and 48% in the control group (OR 0.94, 95% CI 0.49 to 1.83). IPC appears to be an effective method of reducing the risk of deep vein thrombosis in the early stages of post-operative immobilisation of outpatients. Further research is necessary to elucidate whether it can confer similar benefits over longer periods of immobilisation and in a more heterogeneous group of patients. Cite this article: Bone Joint J 2015;97-B:675–80.

The objective of the study was to describe changes in self-reported personality in anxiety patients undergoing capsulotomy. Sixteen patients with anxiety diagnoses undergoing capsulotomy were included. Ratings of personality characteristics with the Karolinska Scales of Personality (KSP), anxiety symptoms and adverse effects such as apathy and dysexecution were performed at baseline, at 1 year and 8-18 years post-operatively. Twelve patients had an anxiety reduction of at least 50%. Patients were significantly less anxiety prone at long-term follow-up as measured by KSP. Four patients suffered from adverse effects indicating frontal lobe dysfunction. There was no significant correlation between the reduction in BSA score and the KSP change from pre-operatively to long term in any of the KSP scales. In line with previous studies, high anxiety proneness normalizes after capsulotomy in anxiety patients. Adverse effects were more frequent than expected. The conclusion based on previous KSP findings that the incidence of adverse personality changes following capsulotomy is low and does not increase with time is challenged by the present study.

Objective: Examine frequency, character and course of symptoms until 3 months after MTBI and the relation between symptoms and disability. Methods: Prospective cohort study of 122 consecutive patients with MTBI. Symptom assessment after 1, 7 and 14 days and 3 months post-injury by use of Rivermead Post-concussional Questionnaire. Disability assessment by use of Rivermead Head Injury Follow-up Questionnaire. Results: Patients reporting one or more symptoms declined from 86% on day 1 to 49% 3 months post-injury, when 25% also reported change in one or more domains of everyday activities. Poor memory, sleep disturbance and fatigue were most commonly reported. Symptom and disability scores were correlated (� ¼ 0.60; p < 0.001). Early symptom load correlated with late symptom load (� ¼ 0.38; p < 0.01). Conclusions: Symptoms gradually decline post-injury. Symptoms correlate with disability at 3 months. Patients with early high symptom load are at risk for developing persisting complaints.

Women's rights to request an elective cesarean section without a specific medical indication has been intensively debated during the last decade among healthcare professionals. The aim of this study was to investigate if women requesting a cesarean section differ in their personality from those who plan a vaginal delivery. The aim was also to study differences between the groups in age, perceived health, and place of birth, IVF treatment, and family size planning.Three hundred and twenty-eight pregnant women from two different groups, "cesarean section on maternal request" (n=84), and "vaginal delivery group" (n=242) completed the self-report inventory Karolinska Scales of Personality at 37-39 gestational weeks in pregnancy.A significant difference in age was found between the cesarean and the vaginal group (mean age 33.9 years versus 30.8, p0.001). Analysis of covariance of personality traits showed that the subscales Monotony avoidance (p0.003) and Socialization (p0.002) differed significantly between women requesting cesarean section and women planning a vaginal delivery. There were no differences between the groups in variables concerning the anxiety proneness scale.Personality traits such as Socialization and Monotony avoidance differ significantly before birth between mothers who request a cesarean section and those who do not.

Background Tyrosine supplementation in humans has been shown to improve cognitive functioning. Several studies have demonstrated a decreased maximal transport capacity of tyrosine ( V max ) across the cell membrane and an increased affinity ( K m ) of tyrosine to membrane binding sites in schizophrenic patients. A lack of tyrosine for dopamine synthesis with impairment of dopaminergic transmission could impair cognitive functioning. Aberrant tyrosine kinetics in patients with schizophrenia might therefore be associated with cognitive dysfunction—a core feature of schizophrenia. Methods Tyrosine kinetics was determined in cultured fibroblasts from 36 schizophrenic patients. The kinetic parameters V max and K m were calculated and then the patients were divided into two groups according to the median of the kinetic parameters. A comprehensive neuropsychological test battery was used to evaluate cognitive functioning. Results Patients with low K m (below the median) had poorer cognitive performance than patients with high K m (above the median). V max did not discriminate schizophrenic patients with cognitive dysfunction to the same extent. Conclusions Changes in tyrosine transport probably influence cognitive functioning via the dopamine system. However, our findings of a relation between low K m and cognitive dysfunction may have a more complex background. It is suggested that the connection is related to genetically determined membrane factors that disturb communication/transmission among neurons.

Primary objectives: To examine the diagnostic value of S100 in mild traumatic brain injury (MTBI).Research design: Prospective cohort study.Methods and procedures: S100B, S100A1B and S100BB concentrations were examined in sera from patients with MTBI with an arrival Glasgow Coma Scale score of 15 or 14, patients with orthopaedic injuries and non-injured subjects.Main outcome and results: Mean values and proportions of subjects above cut-off limits for S100B and S100A1B were significantly higher in each trauma group than in non-injured controls, but only for S100A1B when patients with MTBI were compared with controls with orthopaedic injuries. Using a 97.5 percentile cut-off limit, the sensitivity of S100A1B for MTBI vs orthopaedic injury was 61% (95% confidence interval (CI) 49–73%), specificity 77% (95% CI 62–93%). The area under the ROC curve did not approach 0.9 for any cut off limit.Conclusions: Diagnostic validity of S100 in acute MTBI was not demonstrated. S100A1B has merits for long-term prognostic...

Establishing post-traumatic stress disorder as a psychiatric diagnosis has only marginally increased awareness of traumatic experiences. Traumas are inconsistently recorded in initial psychiatric histories and, when observed, rarely reflected in the primary diagnosis and treatment. The present study aimed to investigate if there is an association between sufficiently addressing trauma and long-term outcome and what factors affect whether trauma, according to the patient's view, is sufficiently addressed or not. Socio-demographic data, experiences of trauma and treatment, and outcome, were collected retrospectively from Arabic, Iranian, Turkish and Swedish patients, who had visited a psychiatric clinic 3-4 years earlier. Fifty-one patients whose traumatic experiences had been sufficiently addressed were compared with 39 patients who perceived that their traumas had not been addressed. Logistic regression analyses were performed to examine relationships between clinical variables and whether or not traumas had been addressed. Patients with trauma sufficiently addressed reported high confidence in staff (odds ratio, OR=7.2, p0.001), high self-rated health (OR=8.0, p0.01) and low scores on the Self-rating Inventory for PTSD (OR=7.7, p0.05) and Depression Scale (OR=3.0, p0.15). Reporting less than five different traumas (OR=4.6, p0.01) and being an ethnic Swede (OR=2.4, p0.10) were the background variables independently related to having trauma sufficiently addressed. Addressing trauma may improve patients' confidence in staff, self-rated health and trauma-related symptoms. Multiplicity of traumas and belonging to an ethnic minority implied that trauma was less addressed.

Background: PTSD is one of few diagnoses to be defined by its aetiology. At treatment centres specialising in a certain type of trauma, like war, torture or sexual abuse, the aetiology may be regarded as self-explanatory. Recent surveys of general populations reveal high rates of PTSD, often following exposure to multiple traumatic events. Traumas are frequently overlooked in general psychiatric settings and PTSD is underestimated. Such findings indicate the need to conceptualise trauma in terms of multiple events and to examine the aetiology of PTSD amongst patients in everyday psychiatric practice. The present study examines aetiological factors of PTSD in three minority groups at a general psychiatric outpatient clinic. Arabs, Iranians and Turks selected from an entire year’s cohort of patients—and a sample of Swedish patients of similar age and gender distribution. Methods: Histories were collected from 115 patients, both regarding their own traumas and traumas involving relatives and close friends, by means of a questionnaire. A self-rating instrument for PTSD, with no reference to a specific trauma, was used in order to study the relationship between trauma and PTSD outcome. Results: Of the patients, 89% had experienced at least one trauma, and 77% multiple traumatic events. The prevalence of probable PTSD varied between ethnic groups: Iranians 69%, Arabs 59%, Turks 53% and Swedes 29%. In a logistic regression analysis, probable PTSD outcome was associated with multiplicity of relatives’ traumas (OR = 3.14), multiplicity of own traumas (OR = 2.56) and belonging to an ethnic minority (OR = 2.44), but not with gender. No patient without a trauma history was positively assessed for probable PTSD. Conclusion: The symptomatic syndrome of probable PTSD does not appear in the absence of extreme trauma, lending empirical support to the definition of PTSD. Prevalence increases with multiplicity of traumas, including those involving a relative or close friend. The high prevalence of probable PTSD found in this study warrants screening for trauma among patients, their relatives and close friends, in outpatient psychiatry.

Background: Physical activity provides fundamental health benefits and plays a positive role in physical well-being. The aim of this present study was to investigate whether a 6-month physical activity program could influence physical self-esteem and frequency of physical activity in physically inactive female high school students in short- and long-term periods and whether personality traits were related to physical activity behaviour and compliance with the program. Methods: The study was a cluster-randomised controlled intervention study including 104 physically inactive female high school students aged 16–19 years, 60 females in an intervention group and 44 females in a control group. The intervention group exercised at sport centres at least once per week during a 6-month period. Questionnaires were used for evaluation. Results: At a 6-month follow up, the intervention group improved physical self-perception in all subdomains and significantly improved physical condition, physical self-worth and self-related health compared to the control group. At 1-year follow up, 25 females out of 53 females were still physically active, and all ratings remained almost the same as at the 6-month follow up. There were no particular personality traits that were dominant in the groups. Conclusion: A 6-month physical activity program can positively influence physical self-esteem and the frequency of physical activity, both from a short- and long-term perspective.

Background A knowledge gap exists around midwives' and obstetricians' mode of delivery in comparison to the general population, and if their personal experience influences their attitudes towards different modes of delivery. Objectives The aim of the present study was to investigate midwives' and obstetricians' mode of delivery compared to the population at large. The second aim was to see if their mode of delivery had been influenced by the expanded indications for caesarean section as described in medical literature. Thirdly, the differences between obstetricians' and midwifes' attitudes to caesarean section on maternal request was investigated. Material and method Textbooks from midwifery education and medical schools were reviewed using a structured protocol. A questionnaire for midwives and obstetricians containing questions on mode of delivery, attitudes towards patients' autonomy and performing caesarean sections on maternal request was sent to 380 midwives and 97 obstetricians born in 1935, 1955 or 1975 with an invitation to participate in the study. Two hundred and sixty three midwives and 55 obstetricians provided completed responses. Results The review of textbooks identified that the number of indications for caesarean section has increased. Indications for caesarean section increased in medical textbooks from seven in the oldest books, from year 1955, to 11 in the textbook from 1993. The focus has shifted in more recently published textbooks to prevention of fatal deliveries. In earlier obstetric care they tend to learn to solve the catastrophe when it had occurred. No significant relationship between midwives' and obstetricians; own mode of delivery and their attitudes towards performing a caesarean section on maternal request (p = 0.191) was found. Thirty percent of the obstetricians reported that they would perform a caesarean section if the pregnant woman requested one. The study found a significant difference between the professions in the statement “the proportion of caesarean section is too high” where midwives to a greater extent agreed with the statement (p = 0.033). There were no significant differences between caesarean section as the mode of delivery for midwives and obstetricians as compared to the general population. Midwives born in 1975 had significantly lower rate of instrumental births compared to the population at large (p Conclusions Over the years, the indications for caesarean section have increased. The increase is shown in both the textbooks read during the different time periods as well as among the Swedish midwives and obstetricians born in 1955 and 1975.

Objectives The aim of this study was to describe the overall health-related quality of life (HRQoL) in women five years after the birth of their first child as well as the HRQoL in relation to mode of delivery. Methods 545 first-time pregnant women, drawn from a hospital situated in Sweden, consented to be included in a cohort. Five years after the birth of the first child, 372 (68%) women agreed to participate in a follow-up study. HRQoL was measured using the Swedish Health-Related Quality of Life Survey (SWED-QUAL) questionnaire. Socio-demographic background and variables related to pregnancy and childbirth were collected using a self-report questionnaire. Results Overall, the HRQoL was perceived to be good. Suboptimal scores were obtained for the three variables: Sleeping problems, Emotional well-being – negative affect and Family functioning – sexual functioning. Women having a vaginal birth, an instrumental vaginal birth or women who underwent caesarean section on maternal request were more likely to report better perceived HRQoL than women who had undergone an emergency caesarean section or caesarean section due to medical indication. Conclusion This study demonstrates that the overall HRQoL of the women in the cohort was reported as good. Mode of delivery was associated with differences in HRQoL five years after birth of the first child. Our result suggests that some differences in perceived HRQoL persist in the long term.

The crux when contemplating neurosurgery for otherwise intractable mental illness is whether there is a price which the patient may have to pay, in terms of adverse personality changes, for symptom relief. In the present study of 19 patients undergoing thermo-capsulotomy for intractable obsessional illness, personality characteristics were studied pre-operatively, and at 1-year and 8-year follow-up, using the Karolinska Scales of Personality (KSP). Small mean score changes toward normalization were apparent on all 15 KSP scales at the 1-year follow-up, and significant improvements in anxiety proneness were noted at the 8-year follow-up. One patient who sustained a surgical complication showed deviant postoperative scores on scales related to psychopathic traits. There were no such deviant scores for the remaining subjects. The incidence of adverse personality changes following capsulotomy is low and does not increase with time. This conclusion, based on groups of patients, does not of course preclude the possibility that adverse personality changes may occur in individual patients.

Background: The Brief Obsessive Compulsive Scale (BOCS), derived from the Yale–Brown Obsessive–Compulsive Scale (Y-BOCS) and the children's version (CY-BOCS), is a short self-report tool used to aid in the assessment of obsessive–compulsive symptoms and diagnosis of obsessive–compulsive disorder (OCD). It is widely used throughout child, adolescent and adult psychiatry settings in Sweden but has not been validated up to date. Aim: The aim of the current study was to examine the psychometric properties of the BOCS amongst a psychiatric outpatient population. Method: The BOCS consists of a 15-item Symptom Checklist including three items (hoarding, dysmorphophobia and self-harm) related to the DSM-5 category “Obsessive–compulsive related disorders”, accompanied by a single six-item Severity Scale for obsessions and compulsions combined. It encompasses the revisions made in the Y-BOCS-II severity scale by including obsessive–compulsive free intervals, extent of avoidance and excluding the resistance item. 402 adult psychiatric outpatients with OCD, attention-deficit/hyperactivity disorder, autism spectrum disorder and other psychiatric disorders completed the BOCS. Results: Principal component factor analysis produced five subscales titled “Symmetry”, “Forbidden thoughts”, “Contamination”, “Magical thoughts” and “Dysmorphic thoughts”. The OCD group scored higher than the other diagnostic groups in all subscales (P < 0.001). Sensitivities, specificities and internal consistency for both the Symptom Checklist and the Severity Scale emerged high (Symptom Checklist: sensitivity = 85%, specificities = 62–70% Cronbach's α = 0.81; Severity Scale: sensitivity = 72%, specificities = 75–84%, Cronbach's α = 0.94). Conclusions: The BOCS has the ability to discriminate OCD from other non-OCD related psychiatric disorders. The current study provides strong support for the utility of the BOCS in the assessment of obsessive–compulsive symptoms in clinical psychiatry.

Objective. To investigate which factors related to the first birth influence subsequent reproduction within 5 years after the birth. Design. Prospective cohort study. Setting. University hospital, Stockholm, Sweden. Sample. Cohort of 547 first-time singleton mothers with a normal pregnancy recruited prospectively of whom 451 women consented to follow-up 5 years later. Methods. Data were collected by several questionnaires on sexual, reproductive and childbirthrelated factors as well as on personality, postnatal depression, fear of childbirth and contact between mother/child. Medical records were also used. Associations between these factors and having a second child were analyzed using logistic regression. Main outcome measures. Women’s subsequent reproduction. Results. Planning a second child at 9 months postpartum was most important in determining to have a second child. Women who had restored their sex life 9 months after birth and women who had a high score in the personality monotony avoidance scale, were less likely to give birth to a second child. No differences were observed regarding mode of delivery, factors related to birth and having a second child, nor was there an association between postnatal depression, fear of childbirth, a negative birth experience and self-estimated contact with the child and subsequent reproduction. Conclusions. Circumstances in relation to the first birth, such as mode of delivery and a negative birth experience, did not affect subsequent reproduction. Planning another child by 9 months after birth was the strongest factor correlated with having a second child.

Introduction Bipolar disorder is characterized by severe mood symptoms including major depressive and manic episodes. During manic episodes, many patients show cognitive dysfunction. Dopamine and glutamate are important for cognitive processing, thus the COMT and DAOA genes that modulate the expression of these neurotransmitters are of interest for studies of cognitive function. Methodology Focusing on the most severe episode of mania, a factor was found with the combined symptoms of talkativeness, distractibility, and thought disorder, considered a cognitive manic symptoms (CMS) factor. 488 patients were genotyped, out of which 373 (76%) had talkativeness, 269 (55%) distractibility, and 372 (76%) thought disorder. 215 (44%) patients were positive for all three symptoms, thus showing CMS (Table 1). As population controls, 1,044 anonymous blood donors (ABD) were used. Case-case and case-control design models were used to investigate genetic associations between cognitive manic symptoms in bipolar 1 disorder and SNPs in the COMT and DAOA genes. 10.1371/journal.pone.0067450.t001 Table 1 Clinical characteristics of the Bipolar 1 patient sample. Bipolar disorder type 1 [n] 488 Men [n (%)] 209 (43) Talkativeness [n (%)] 373 (76) Distracibility [n (%)] 269 (55) Thought disorder [n (%)] 372 (76) Cognitive manic symptoms* [n (%)] 215 (44) Men [n (%)] 81 (39) Non-Cognitive manic symptoms [n (%)] 248 (51) Men [n (%)] 117 (56) Unknown [n (%)] 25 (5) Men [n (%)] 11 (44) Anonymous blood donors (ABD) 1044 Men [n (%)] 616 (59) * having all three symptoms: talkativeness, distractibility, and tought disorder. Results The finding of this study was that cognitive manic symptoms in patients with bipolar 1 disorder was associated with genetic variants in the DAOA and COMT genes. Nominal association for DAOA SNPs and COMT SNPs to cognitive symptoms factor in bipolar 1 disorder was found in both allelic (Table 2) and haplotypic (Table 3) analyses. Genotypic association analyses also supported our findings. However, only one association, when CMS patients were compared to ABD controls, survived correction for multiple testing by max (T) permutation. Data also suggested interaction between SNPs rs2391191 in DAOA and rs5993883 in COMT in the case-control model. 10.1371/journal.pone.0067450.t002 Table 2 Allelic association in bipolar 1 patients with cognitive manic symptoms (CMS) patients compared to non-CMS and to ABD controls in the DAOA and COMT genes. BP1 CMS BP1 non-CMS ABD BP1 CMS vs. non-CMSb BP1 CMS vs. ABD controlsb Gene SNPa aa/ab/bb aa/ab/bb aa/ab/bb p EMP1c EMP2d OR [95% CI] e p EMP1c EMP2d OR [95% CI] e DAOA rs3916967 (C/T) 32/88/89 50/118/77 177/494/361 0.018 0.018 0.21 0.72 [0.55–0.93] 0.029 0.026 0.28 0.78 [0.66–1.0] DAOA rs2391191 (A/C) 28/75/79 39/111/70 179/487/357 0.055 0.039 0.50 0.75 [0.57–1.0] 0.020 0.019 0.21 0.75 [0.63–1.0] DAOA rs1935062 (C/A) 26/67/89 35/102/86 146/460/405 0.12 0.12 0.78 0.80 [0.58–1.0] 0.069 0.066 0.52 0.80 [0.65–1.0] COMT rs5993883 (T/G) 33/120/53 71/112/57 269/510/223 0.025 0.030 0.27 0.73 [0.56–0.95] 0.0017* 1.0E−4 * 0.021* 0.68 [0.91–1.4] COMT rs165599 (G/A) 29/94/87 25/93/126 87/443/501 0.093 0.094 0.69 1.27 [1.0–1.8] 0.014 0.017 0.16 1.34 [1.1–1.7] a SNP (minor allele(a)/major allele(b)). b gender and rs1718119 as covariate. c point-wise p-value from 10,000 pemutations with no covarite (EMP1). d corrected empirical p-value by max (T) permutation. e odds ratio (OR), the proportion of minor versus major allele affected (cognitive manic symptoms factor)/proportion of minor versus major allele unaffected (non-cognitive manic symptoms factor or ABD controls). * significant after correction for multiple testing by max (T) permutation. 10.1371/journal.pone.0067450.t003 Table 3 Haplotype association of haplotype group 1 in bipolar 1 patients with cognitive manic symptoms (CMS) compared with non-CMS patients or ABD controls in the DAOA gene. CMS vs non-CMSb CMS vs ABDb DAOA rs3916967 rs2391191 rs1935062 Fa p OR [95% CI]c Fa p OR [95% CI]c Haplotype 1 C A C 0.32 0.25 0.83 [0.66–1.1] 0.33 0.14 0.83 [0.71–1.1] Haplotype 2 T G C 0.032 0.34 0.64 [0.32–1.1] 0.037 0.19 0.58 [0.37–1.1] Haplotype 3 C A A 0.074 0.077 0.58 [0.39–0.89] 0.075 0.10 0.65 [0.47–1.0] Haplotype 4 T G A 0.57 0.029 1.38 [1.17–1.8] 0.56 0.0057 1.41 [1.1–1.6] a frequency (F) in sample. b gender and rs1718119 as covariates. c odds ratios (OR) for each haplotype. Conclusion Identifying genes associated with cognitive functioning has clinical implications for assessment of prognosis and progression. Our finding are consistent with other studies showing genetic associations between the COMT and DAOA genes and impaired cognition both in psychiatric disorders and in the general population.