Publications by authors named "Niels Lyhne Christensen"

Background: The fast-track cancer pathway aims to expedite diagnosis of lung cancer and treatment and is the preferred route to diagnosis. Diagnosis following an unplanned admission (unplanned route) has been associated with poor outcomes.

Objective: This study explores factors associated with lung cancer diagnosis following unplanned admissions, focusing on the elderly population.

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Article Synopsis
  • - The study focuses on understanding the characteristics, diagnostic processes, treatment patterns, and survival rates of elderly lung cancer patients in Denmark, specifically aiming to address the under-representation of older individuals in clinical trials.
  • - An analysis of 17,835 lung cancer patients showed that only 16.1% were aged 80 and over, and these elderly patients had lower rates of diagnostic procedures and curative treatments compared to younger patients.
  • - Findings revealed that elderly patients had significantly higher odds (2.1 times) of dying within 12 months of diagnosis, indicating that older age is linked to worse outcomes in lung cancer treatment and prognosis.
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Objectives: Early diagnosis of lung cancer is imperative to improve survival. Incidental pulmonary nodules (IPN) may represent early stages of lung cancer and appropriate follow-up and management of these nodules is important, but also very resource demanding. We aim to describe the results of the CT-based follow-up on a cohort of patients with IPN in terms of detected malignancies, the proportion undergoing invasive procedures, and the subsequent outcome.

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Introduction: Recurrence of cancer is not routinely registered in Danish national health registers. This study aimed to develop and validate a register-based algorithm to identify patients diagnosed with recurrent lung cancer and to estimate the accuracy of the identified diagnosis date.

Material And Methods: Patients with early-stage lung cancer treated with surgery were included in the study.

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Article Synopsis
  • Systemic corticosteroids (CS) are recognized for their anti-inflammatory effects in treating obstructive lung diseases like asthma and COPD, as well as seasonal allergic rhinitis.
  • Recent developments have enhanced inhalation and biologic treatments, leading to more personalized approaches in using CS for acute exacerbations.
  • The review focuses on the side effects of CS and the justification for their use in managing these respiratory conditions.
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Asthma is one of the most common chronic diseases in children and adults. Cocaine is associated with asthma exacerbations. In Denmark, the prevalence of cocaine use has been increasing in recent years.

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Lung cancer is the leading cause of cancer death worldwide, but the additional economic burden regarding direct and indirect costs is largely unknown. This study provides information on the economic consequences of lung cancer on a national level. From the Danish National Patient Registry (NPR) and the Danish Civil Registration System (CPR), 53,749 patients with lung cancer were identified and matched with 214,304 controls on age, gender, region of residence and marital status in the period 1998-2010.

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Background: The prognosis of cancer is related to how the cancer is identified, and where in the healthcare system the patient presents, i.e. routes to diagnosis (RtD).

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: The organ-specific Danish cancer patient pathways (CPPs) including standard time frames were introduced in 2008-2009 securing fast tracks for cancer diagnosis and treatment. Previous studies of the CPPs have focussed on patients getting the suspected cancer diagnosis, whereas little is known about patients not getting the cancer diagnosis for which they were examined. We aimed to describe the characteristics of patients who completed a lung cancer CPP (LCPP) without getting a LC diagnosis.

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Lung cancer is the leading cause of cancer-related death worldwide. This population-based longitudinal study investigates survival rates and the burden of comorbidity before and after being diagnosed with lung cancer in Denmark. From the Danish National Patient Registry (NPR) and the Danish Civil Registration System (CPR), 53,749 patients with lung cancer were identified and matched with 214,304 controls on age, gender, region of residence and marital status in the period 1998-2010.

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Comorbidity is an important prognostic marker and a treatment indicator for lung cancer patients. Register-based studies often describe the burden of comorbidity by the Charlson comorbidity index (CCI) based on hospital discharge data. We assessed the association between somatic and psychiatric comorbidity and death within one year in early lung cancer and, furthermore, the burden of comorbidity according to treatment type.

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Background: Stage I lung cancer is curable with surgery as the treatment of choice. Other effective and curative treatments exist. Nevertheless, some patients only receive palliative treatment and some receive no treatment at all.

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Many resources have been spent to successfully improve the outcome and prognosis of lung cancer during the last decade. However, surprisingly few studies and real-life settings deal with smoking cessation as an integrated part of screening and treatment for lung cancer even though the evidence is compelling - these events offer a window of opportunity, as smokers are motivated to quit. Furthermore, the effect of smoking cessation with respect to survival, prognosis and quality of life equals the established treatment: surgery, chemotherapy and radiation.

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Introduction: In addition to the highest incidence rate of lung cancer among the Nordic countries, Denmark has the highest mortality rate. Moreover, rates of tobacco and alcohol consumption are among the highest in these countries.

Method: In a population-based matched case/control study, we aimed to assess the association between one-year all-cause mortality and a number of smoking-related parameters, high-risk alcohol intake, and nutritional status in clinical stage I lung cancer patients.

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Objective: Clinical stage (c-stage) at diagnosis is the most significant prognostic marker for patients with cancer, where 1- and 5-year survival rates as main landmarks when assessing outcomes. This is a population-based case study of Danish c-stage I lung cancer patients who were considered candidates for curative therapy and then died within 1 year after diagnosis (cases). Cases were identified in the Danish Lung Cancer Register (DLCR), and medical records were used to retrieve treatment details and cause of death (CoD).

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Background: There is paucity of evidence regarding the optimal follow-up (FU) regimen for lung cancer. Consequently, FU is organized differently across countries. The Danish FU regimen has short FU intervals with a computed tomography (CT) scan of the chest and upper abdomen every three months in the early phase (first 2 years), then every six months in the late phase of FU (3rd, 5th year).

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Background: The Nordic countries are similar in terms of demographics and health care organization. Yet there are marked differences in lung cancer mortality, for which Denmark historically has had the poorest outcome. One of several possible reasons for these differences could have to do with how lung cancer is diagnosed and treated in the different Nordic countries.

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Background: In acute steroid-refractory ulcerative colitis, rescue therapy with infliximab has become a therapeutic option in patients facing colectomy. Data on efficacy and safety in this setting are sparse.

Methods: Patients with ulcerative colitis and acute and severe steroid-refractory disease, who were given infliximab as rescue therapy, were identified by a review of patients' records and databases of infliximab-treated patients.

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