Acute hepatic porphyria and cancer risk: a nationwide cohort study.

BACKGROUND: Acute hepatic porphyria (AHP) is considered to be a risk factor for primary liver cancer (PLC), but varying risk estimates have been published. OBJECTIVES: Our aim was to investigate the risk of PLC and other cancers in persons with AHP using a nationwide cohort design. Given that greater numbers of women than men tend to have manifest and more severe AHP, a further aim was to investigate sex differences in this risk. METHODS: The study sample consisted of all Norwegian residents aged 18 years or older during the period 2000-2011. Persons with AHP (n = 251) were identified through the Norwegian Porphyria Centre, and patients with a cancer diagnosis were identified by linkage to the Cancer Registry of Norway. RESULTS: For persons with AHP, the annual incidence rate of PLC was 0.35%. PLC risk was substantially higher for individuals with an AHP diagnosis compared to the reference population [adjusted hazard ratio (aHR) 108, 95% confidence interval (CI) 56-207]. In a meta-analysis of published studies on PLC and AHP, including ours, women had a higher risk than men. In addition, our results suggested that persons with AHP may have increased risks of kidney (aHR 7.4, 95% CI 2.4-23.1) and endometrial cancers (aHR 6.2, 95% CI 2.0-19.3). CONCLUSIONS: Our findings confirmed a substantially higher risk of PLC associated with AHP compared to the general population. In a meta-analysis, the risk was shown to be greater for women than men. The novel findings of a moderate to substantial association between AHP and kidney and endometrial cancers should be investigated further.

Less thrombolysis in posterior circulation infarction-a necessary evil?

OBJECTIVES: Patients with posterior circulation infarction (PCI) have more subtle symptoms than anterior circulation infarction (ACI) and could come too late for acute intervention. This study aimed to describe the clinical presentation, management, and outcome of PCI in the NORSTROKE registry. METHODS: All patients with PCI admitted to the Department of Neurology at Haukeland University Hospital and registered in the NORSTROKE database 2006-2013 were included (n=686). Patients with ACI (n=1758) were used for comparison. RESULTS: Patients with PCI were younger (68.2 vs 71.8, P<.001), had longer median time from symptom onset to admission (3.8 hours vs 2.2 hours, P<.001), and were less likely to arrive at hospital within 4.5 hours from symptom onset (56.2% vs 72.5%, P<.001, ictus known). Patients with PCI scored lower on baseline National Institute of Health Stroke Scale (NIHSS) total score (3.2 vs 6.3, P<.001), and lower or equally on all items of NIHSS, except for ataxia in two limbs. Patients with PCI were less likely to receive i.v. thrombolytic treatment (9.9% vs 21.5%, OR 0.66, CI 0.47-0.94). On day 7, patients with PCI scored lower on NIHSS (2.8 vs 4.9, P<.001), modified Rankin Scale (2.0 vs 2.3, P<.001), and higher on Barthel Index (84.5 vs 76.0, P<.001). CONCLUSIONS: Our study is, to our knowledge, the largest series reporting comprehensively on PCI verified by diffusion-weighted imaging. PCI patients are younger than ACI and have better outcome. PCI and ACI are equally investigated in the acute setting, but thrombolysis rates remain 50% lower in PCI.

Three Different Outcomes in Older Community-dwelling Patients Receiving Intermediate Care in Nursing Home after Acute Hospitalization.

OBJECTIVES: To evaluate the recovery and outcome of older communitydwelling patients admitted to intermediate care (IC) in nursing homes after acute hospitalization, and to compare patients who were able and unable to return directly to their own homes. DESIGN: Prospective, observational, cohort study conducted between June 2011 and 2014. SETTING: A 19- bed IC unit in a nursing home with increased multidisciplinary staffing. PARTICIPANTS: A total of 961 community-dwelling patients, ≥70 years of age, considered to have a rehabilitation potential and no major cognitive impairment or delirium, transferred from internal medicine, cardiac, pulmonary and orthopaedic hospital departments. MEASUREMENTS: Demographic data, clinical information, comprehensive geriatric assessment (CGA), discharge destination and length of stay. Residence status and mortality 1 month, 2 months, 3 months, and 6 months after discharge from the hospital. RESULTS: The trajectory of recovery was divided into 3 groups: 1) Rapid recovery, able to return home after median 14 days in IC (n=785, 82%); 2) Slow recovery, requiring additional transfer to other nursing home after IC, but still able to return home within 2 months (n=106, 11%). 3) Poor recovery, requiring transfer to other nursing home after IC and still in a nursing home or dead at 2 months (n=66, 7%). Significant different clinical characteristics were demonstrated between the patients in the 3 groups. After 6 months, the recovery of patients with rapid or slow recovery was similar, 87% were living at home, compared to only 20% of the patients with poor recovery. In multiple logistic regression analysis, slow or poor recovery was significantly associated with low scores on the Barthel index and orthopaedic admission diagnosis. CONCLUSIONS: Although the majority of patients selected for treatment in the IC unit were able to recover and return home, a group of patients needed extra time, up to 2 months, to recover and another group had a poor chance of recovering and returning home. Different caring pathways for different patient groups may be considered in the PAC setting.

Predictors for PaO2 and hypoxemic respiratory failure in COPD-A three-year follow-up.

BACKGROUND: Knowledge about predictors for developing hypoxemia in the course of chronic obstructive pulmonary disease (COPD) progression is limited. The objective of the present study was to investigate predictors for overall PaO2, for a potential change in PaO2 over time, and for first occurrence of hypoxemia. METHODS: 419 patients aged 40-76 years with COPD GOLD stages II-IV underwent clinical and pulmonary function measurements, including repeated arterial blood gases over three years. Airway obstruction, lung hyperinflation, markers of systemic inflammation and cardiovascular health, exacerbation frequency, smoking habits, and body composition were tested as possible predictors of PaO2 and first episode of hypoxemia. RESULTS: In multivariate adjusted longitudinal analyses, forced expiratory volume in 1 second, total lung capacity and functional residual capacity (all in% predicted), resting heart rate and fat mass index were all associated with overall PaO2 (all P < 0.005). We found no change in PaO2 over time (ρ = 0.33), nor did we find evidence that any of the tested variables predicted change in PaO2 over time. In multivariate adjusted survival analyses, functional residual capacity and resting heart rate were predictors of episodic hypoxemia (both ρ < 0.005). CONCLUSIONS: This longitudinal study identified pulmonary, cardiac and metabolic risk factors for overall PaO2 and episodic hypoxemia, but detected no change in PaO2 over time.

Validation of the multiple sclerosis international quality of life (MusiQoL) questionnaire in Norwegian patients.

OBJECTIVES: To assess the validity and reliability of the multidimensional, self-administered Multiple Sclerosis International Quality of Life (MusiQoL) questionnaire, previously validated in a large international sample, in Norwegian patients. PATIENTS AND METHODS: Patients with different types and severities of multiple sclerosis (MS) were recruited from a single MS centre in Norway. All patients completed the MusiQoL and Short Form-36 (SF-36) QoL questionnaires at baseline and a mean of 21 (SD 7) days later. A neurologist collected sociodemographic, MS history and outcome data. Construct validity, internal consistency, reproducibility and external consistency were tested. RESULTS: One hundred and four patients were evaluated. Construct validity was confirmed in terms of satisfactory item internal consistency correlations in eight of nine MusiQoL dimensions (Spearman's correlation: 0.34-0.79) and scaling success of item discriminant validity (75.0-100%). All dimensions of the MusiQoL questionnaire exhibited satisfactory internal consistency (Cronbach's alpha: 0.44-0.87) and reproducibility (intraclass correlation coefficients: 0.36-0.86). External validity testing showed that the global MusiQoL score correlated significantly with all but one individual SF-36 dimension score (Spearman's correlation: 0.29-0.56). CONCLUSIONS: These results demonstrate that the Norwegian-language version of the MusiQoL questionnaire is a valid and reliable instrument for assessing health-related QoL in Norwegian patients with MS.

Healthcare-associated infection among residents of long-term care facilities: a cohort and nested case-control study.

Knowledge of infection control measures in nursing homes is limited. This study aimed to assess the incidence of, and potential risk factors for, healthcare-associated infection in long-term care facilities in Norway. Incidence of healthcare-associated infection was recorded prospectively in six long-term care facilities located in two major cities in Norway between 1 October 2004 and 31 March 2005. For each resident with an infection we aimed for two controls in a nested case-control study to identify potential risk factors. Incidence of infection was 5.2 per 1000 resident-days. Urinary and lower respiratory tract infections were the most common. Patients confined to their beds [odds ratio (OR=2.7)], who stayed <28 days (OR=1.5), had chronic heart disease (OR=1.3), urinary incontinence (OR=1.5), an indwelling urinary catheter (OR=2.0) or skin ulcers (OR=1.8) were shown to have a greater risk for infection. Age, sex and accommodated in a two- versus single-bed room were not significant factors. Incidence of infection in nursing homes in Norway is within the range reported from other countries. This study identified several important risk factors for healthcare-associated infection. There is a need to prevent infection by implementing infection control programmes including surveillance in long-term care facilities.