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1.
  • Bäcklund, Nils, et al. (författare)
  • Reference intervals of salivary cortisol and cortisone and their diagnostic accuracy in Cushing's syndrome
  • 2020
  • Ingår i: European Journal of Endocrinology. - 0804-4643. ; 182:6, s. 569-582
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: The challenge of diagnosing Cushing's syndrome (CS) calls for high precision biochemical screening. This study aimed to establish robust reference intervals for, and compare the diagnostic accuracy of, salivary cortisol and cortisone in late-night samples and after a low-dose (1 mg) dexamethasone suppression test (DST). Design and methods: Saliva samples were collected at 08:00 and 23:00 h, and at 08:00 h, after a DST, from 22 patients with CS and from 155 adult reference subjects. We also collected samples at 20:00 and 22:00 h from 78 of the reference subjects. Salivary cortisol and cortisone were analysed with liquid chromatography-tandem mass spectrometry. The reference intervals were calculated as the 2.5th and 97.5th percentiles of the reference population measurements. Diagnostic accuracies of different tests were compared, based on areas under the receiver-operating characteristic curves. Results: The upper reference limits of salivary cortisol and cortisone at 23:00 h were 3.6 nmol/L and 13.5 nmol/L, respectively. Using these reference limits, CS was detected with a sensitivity (95% CI) of 90% (70-99%) and specificity of 96% (91-98%) for cortisol, and a 100% (84-100%) sensitivity and 95% (90-98%) specificity for cortisone. After DST, cortisol and cortisone upper reference limits were 0.79 nmol/L and 3.5 nmol/L, respectively. CS was detected with 95% (75-100%) sensitivity and 96% (92-99%) specificity with cortisol, and 100% (83-100%) sensitivity and 94% (89-97%) specificity with cortisone. No differences in salivary cortisol or cortisone levels were found between samples collected at 22:00 and 23:00 h. Conclusion: Salivary cortisol and cortisone in late-night samples and after DST showed high accuracy for diagnosing CS, salivary cortisone being slightly, but significantly better.
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2.
  • Onnestam, Lisa, et al. (författare)
  • National Incidence and Prevalence of TSH-Secreting Pituitary Adenomas in Sweden.
  • 2013
  • Ingår i: Journal of Clinical Endocrinology and Metabolism. - Oxford University Press. - 1945-7197. ; 98:2, s. 626-635
  • Tidskriftsartikel (refereegranskat)abstract
    • Context:TSH-secreting pituitary adenomas (TSHomas) are rare. Epidemiological data are scant and there are no reports on national incidence.Objective:The objective of the study was to estimate the national Swedish incidence and prevalence of TSHomas.Design:This was an observational study.Setting:The study was conducted at tertiary referral centers.Patients:The Swedish Pituitary Registry and World Health Organization International Statistical Classification of Diseases and Related Health Problems coding at all university hospitals were used to identify patients diagnosed with TSHomas 1990-2010. The identified patients' medical records were studied until the latest follow-up [median 5.0 years (range < 1-20 years)].Main Outcome Measurements:Incidence, prevalence, demographics, tumor characteristics, treatment outcome, and thyroid hormone level at diagnosis were measured.Results:The age-standardized national incidence of 28 TSHoma patients was 0.15 per 1 million inhabitants per year, with an increasing incidence over time (0.05 per 1 million per year in 1990-1994 to 0.26 per 1 million per year in 2005-2009). The national prevalence in 2010 was 2.8 per 1 million inhabitants, in which 0.85 per 1 million had active disease. Most patients (n = 22) underwent pituitary surgery, 5 had radiotherapy, and 6 had somatostatin analogues. Eighteen patients were considered cured at the latest follow-up; 25% remained uncontrolled. Subjects treated for putative primary hyperthyroidism prior to diagnosis had TSH levels more than double those with intact thyroid at diagnosis (P = .013). The median time to diagnosis was longer for women than men (4 vs < 1 year, P = .026). More women than men were treated surgically (94.1% vs 54.5%, P = .022).Conclusion:This is the first estimate of a national incidence of TSHoma. Additional epidemiological studies are needed to compare these results with other geographical areas. This study suggests an increased incidence of TSHomas, in agreement with reports on other pituitary adenomas.
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3.
  • Ragnarsson, Oskar, 1971-, et al. (författare)
  • Overall and disease-specific mortality in patients with Cushing's disease: a Swedish nationwide study.
  • 2019
  • Ingår i: The Journal of clinical endocrinology and metabolism. - 1945-7197. ; 104:6
  • Tidskriftsartikel (refereegranskat)abstract
    • It is still a matter of debate whether patients with Cushing's disease (CD) in remission have increased mortality.To study overall and disease-specific mortality, and predictive factors, in an unselected nationwide cohort of patients with CD.A retrospective study on patients diagnosed with CD, identified in the Swedish National Patient Registry between 1987 and 2013. Medical records were systematically reviewed to verify the diagnosis. Standardised mortality ratios (SMRs) with 95% confidence intervals (CI) were calculated and Cox regression models were used to identify predictors of mortality.Five-hundred-and-two patients [387 women (77%)] with CD were identified, of whom 419 (83%) were confirmed to be in remission. Mean age at diagnosis was 43 years (SD 16) and median follow-up time was 13 years (IQR 6-23). The observed number of deaths was 133 versus 54 expected, resulting in an overall SMR of 2.5 (95% CI 2.1-2.9). The commonest cause of death was cardiovascular diseases [SMR 3.3 (95% CI 2.6 -4.3)]. Excess mortality was also found due to infections and suicides. SMR in patients in remission was 1.9 (95% CI 1.5-2.3), where bilateral adrenalectomy and glucocorticoid replacement therapy were independently associated with increased mortality whereas growth hormone replacement was associated with improved outcome.This large nationwide study shows that patients with CD have an excess mortality. The findings illustrate the importance of obtaining remission and continued active surveillance, along with adequate hormone replacement, and evaluation of cardiovascular risk and mental health.
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4.
  • Ragnarsson, Oskar, 1971-, et al. (författare)
  • The incidence of Cushing’s disease : : a nationwide Swedish study
  • 2019
  • Ingår i: Pituitary. - Springer. - 1386-341X. ; 22:2, s. 179-186
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Studies on the incidence of Cushing’s disease (CD) are few and usually limited by a small number of patients. The aim of this study was to assess the annual incidence in a nationwide cohort of patients with presumed CD in Sweden. Methods: Patients registered with a diagnostic code for Cushing’s syndrome (CS) or CD, between 1987 and 2013 were identified in the Swedish National Patient Registry. The CD diagnosis was validated by reviewing clinical, biochemical, imaging, and histopathological data. Results: Of 1317 patients identified, 534 (41%) had confirmed CD. One-hundred-and-fifty-six (12%) patients had other forms of CS, 41 (3%) had probable but unconfirmed CD, and 334 (25%) had diagnoses unrelated to CS. The mean (95% confidence interval) annual incidence between 1987 and 2013 of confirmed CD was 1.6 (1.4–1.8) cases per million. 1987–1995, 1996–2004, and 2005–2013, the mean annual incidence was 1.5 (1.1–1.8), 1.4 (1.0–1.7) and 2.0 (1.7–2.3) cases per million, respectively. During the last time period the incidence was higher than during the first and second time periods (P < 0.05). Conclusion: The incidence of CD in Sweden (1.6 cases per million) is in agreement with most previous reports. A higher incidence between 2005 and 2013 compared to 1987–2004 was noticed. Whether this reflects a truly increased incidence of the disease, or simply an increased awareness, earlier recognition, and earlier diagnosis can, however, not be answered. This study also illustrates the importance of validation of the diagnosis of CD in epidemiological research.
5.
  • Schill, Fredrika, et al. (författare)
  • Pituitary Metastases : A Nationwide Study on Current Characteristics with Special Reference to Breast Cancer
  • 2019
  • Ingår i: Journal of Clinical Endocrinology and Metabolism. - Oxford University Press. - 0021-972X. ; 104:8, s. 3379-3388
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective To investigate the contemporary presentation of pituitary metastases. Patients Thirty-eight patients diagnosed with pituitary metastases from 1996 to 2018 in Sweden. Methods Pituitary metastases were confirmed by histopathology (n = 27) or considered highly likely according to radiological findings, including rapid tumor progression (n = 11). Medical records were reviewed and sellar images reexamined centrally. Results Breast and lung cancers were the most common primary tumors, in 45% and 21% of patients, respectively. Sixty-seven percent of breast cancers overexpressed human epidermal growth factor receptor 2 (HER2); 53% of pituitary metastases from breast cancers appeared ≥10 years after diagnosis of the primary tumor. At presentation, 71% appeared to have ACTH deficiency, 65% had TSH deficiency, and 26% had diabetes insipidus. Fatigue, nausea/vomiting, loss of appetite, weight loss, myalgia, and/or arthralgia were reported in 47% of patients with morning cortisol <100 nmol/L vs 23% with cortisol ≥200 nmol/L. Sixteen patients had visual field defects, and eight had diplopia. Intrasellar and suprasellar tumor growth was the most frequent finding. Initially, a pituitary adenoma was considered the etiology in 18% of patients. Radiotherapy, pituitary surgery, and chemotherapy were used in 68%, 68%, and 11% of patients, respectively. One and 2 years after diagnosis of pituitary metastases, 50% and 26% of patients were alive. Conclusion Pituitary metastases may be mistaken for pituitary adenomas and can appear late, especially in breast cancer. Breast cancers overexpressing HER2 seem prone to metastasize to the pituitary. Hypocortisolism may be misdiagnosed as cancer-related malaise. An increased awareness of pituitary metastases and undiagnosed pituitary failure can improve management in these patients.
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6.
  • Bengtsson, Daniel, et al. (författare)
  • Long-Term Outcome and MGMT as a Predictive Marker in 24 Patients With Atypical Pituitary Adenomas and Pituitary Carcinomas Given Treatment With Temozolomide
  • 2015
  • Ingår i: Journal of Clinical Endocrinology & Metabolism. - 0021-972X. ; 100:4, s. 1689-1698
  • Tidskriftsartikel (refereegranskat)abstract
    • Context/Objective: Locally aggressive pituitary tumors (LAPT) and pituitary carcinomas respond poorly to conventional therapy and cytotoxic drugs. Temozolomide (TMZ) is an oral alkylating drug with good tolerability, approved for treatment of malignant gliomas. The experience of its use in pituitary tumors is limited. Design/Setting: We report on 24 patients with aggressive pituitary tumors (16 LAPTs, 8 carcinomas) treated with TMZ for a median of 6 months (range 1-23). Follow-up ranged from 4 to 91 months, median 32.5 months. 19/24 tumors were hormone secreting (PRL 9, ACTH 4, GH 4, GH/PRL 2). Ki-67 was 2-23% in LAPTs, and 5-90% in carcinomas. Main outcome: Response to TMZ and the association with tumor expression of O6-methylguanine DNA methyltransferase (MGMT), MLH1, MSH2, and MSH6, examined by immunohistochemistry. Results: Complete tumor regression occurred in 2 carcinomas and persisted at follow-up after 48 and 91 months, respectively. Partial regress of tumor mass ranging from 35-80% occurred in 5 LAPTs and 2 carcinomas. Another patient with LAPT had a 71% decrease in prolactin levels without change in tumor volume. Three LAPTs could not be evaluated. Median MGMT staining was 9% (5-20%) in responders vs 93% (50-100%) in non-responders. Loss of MSH2 and MSH 6 was observed in a single patient who had a rapid development of resistance to TMZ. Conclusions: This study shows that TMZ is a valuable treatment option for patients with uncontrolled pituitary tumors. The data suggest that tumoral MGMT staining below 50% is associated with a high likelihood of treatment response.
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7.
  • Berinder, Katarina (författare)
  • Patients with hyperprolactinemia clinical and epidemiological perspectives
  • 2011
  • Doktorsavhandling (övrigt vetenskapligt)abstract
    • Hyperprolactinemia (HPL) is the most common endocrine disorder of the hypothalamicpituitary axis and prolactinomas the most frequent pituitary tumour. A majority of the patients are women in reproductive age seeking health care for menstrual disorders or infertility. Because a majority of the patients are relatively young at diagnosis and the medical treatment often life-long, it is essential to study the efficacy of treatment and longterm results in these patients. Data are lacking in women with HPL concerning parity and there is still a void of studies evaluating cancer risk and whether the metabolic state is altered in patients with elevated prolactin (PRL) levels. This thesis, which contains four studies addressing these issues, is aimed to improve our knowledge and the quality of clinical management in patients with HPL. Long-term outcome of treatment: A total of 271 women with HPL were retrospectively evaluated. At diagnosis, 87% of the women presented with menstrual disturbances and 47% had galactorrhea. The outcome after up to 29 years of clinical follow-up (median 9.3 years) showed a good treatment result with restoration of menses and galactorrhea in 94% of the women. Medical therapy with dopamine (DA) agonists normalised PRL levels in 71% of the patients and 80% had a total or partial degree of tumour reduction. Fifty-three per cent (9 of 17) of the surgically treated patients and one third (three of nine) of the patients treated with radiotherapy exhibited long-term normalisation of PRL levels without medical treatment. Parity and pregnancy outcome: In this matched cohort study (271 women with HPL and 1084 comparison subjects) a reduced parity was found in HPL patients, mainly because there were more nulliparous women and fewer women with more than two children. Parity was inversely associated with HPL status (P for trend =0.0009). No increased risk of pregnancy or delivery complications was found. In addition, outcomes of the newborns did not differ between patients and controls. Cancer risk: A small, though significant, increased risk of overall cancer was found in 969 patients with HPL (668 women and 301 men) as compared with matched comparison subjects (hazard ratio [HR] 1.31; 95% CI 1.02-1.68) which was mainly due to increased risk of upper gastrointestinal cancer in all patients and hematopoietic cancer in females. Risk of breast cancer did not differ between patients and controls. Furthermore, a reduced risk of prostate cancer by 60% was found in HPL men (HR 0.40; 95% CI 0.16-0.99). Metabolic assessment: Evaluation of 14 consecutive patients with prolactinomas (eight women and six men) before and after normalisation of PRL levels by DA agonist therapy revealed that HPL men had an unfavourable metabolic profile at diagnosis. After therapy, a significant decrease of body weight, waist circumference and body fat% was found in the men. A positive correlation between PRL levels and low-density lipoprotein (LDL) cholesterol at diagnosis was seen and LDL cholesterol decreased after 2 months of DA agonist treatment. Furthermore, peripheral insulin sensitivity evaluated with a euglycemic hyperinsulinemic clamp tended to improve after therapy. This improvement was associated with a reduction in PRL levels. In conclusion, the results of this thesis show that HPL patients can be effectively treated with DA agonists in the long-term perspective and emphasise its role as first-line therapy. Women treated for HPL have a reduced parity, but there are no increased risks during pregnancy or for their offspring. The small increased risk of cancer that was found in HPL patients and the possible negative effect of elevated PRL levels on metabolic state need to be further evaluated; however, it implies the need for an active treatment approach and close follow-up of patients with HPL.
8.
  • Onnestam, Lisa, et al. (författare)
  • National Incidence and Prevalence of TSH-Secreting Pituitary Adenomas in Sweden
  • 2013
  • Ingår i: Journal of Clinical Endocrinology and Metabolism. - 0021-972X .- 1945-7197. ; 98:2, s. 626-635
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Context: TSH-secreting pituitary adenomas (TSHomas) are rare. Epidemiological data are scant and there are no reports on national incidence. Objective: The objective of the study was to estimate the national Swedish incidence and prevalence of TSHomas. Design: This was an observational study. Setting: The study was conducted at tertiary referral centers. Patients: The Swedish Pituitary Registry and World Health Organization International Statistical Classification of Diseases and Related Health Problems coding at all university hospitals were used to identify patients diagnosed with TSHomas 1990-2010. The identified patients' medical records were studied until the latest follow-up [median 5.0 years (range &lt; 1-20 years)]. Main Outcome Measurements: Incidence, prevalence, demographics, tumor characteristics, treatment outcome, and thyroid hormone level at diagnosis were measured. Results: The age-standardized national incidence of 28 TSHoma patients was 0.15 per 1 million inhabitants per year, with an increasing incidence over time (0.05 per 1 million per year in 1990-1994 to 0.26 per 1 million per year in 2005-2009). The national prevalence in 2010 was 2.8 per 1 million inhabitants, in which 0.85 per 1 million had active disease. Most patients (n = 22) underwent pituitary surgery, 5 had radiotherapy, and 6 had somatostatin analogues. Eighteen patients were considered cured at the latest follow-up; 25% remained uncontrolled. Subjects treated for putative primary hyperthyroidism prior to diagnosis had TSH levels more than double those with intact thyroid at diagnosis (P = .013). The median time to diagnosis was longer for women than men (4 vs &lt; 1 year, P = .026). More women than men were treated surgically (94.1% vs 54.5%, P = .022). Conclusion: This is the first estimate of a national incidence of TSHoma. Additional epidemiological studies are needed to compare these results with other geographical areas. This study suggests an increased incidence of TSHomas, in agreement with reports on other pituitary adenomas. </p>
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9.
  • Onnestam, Lisa, et al. (författare)
  • National Incidence and Prevalence of TSH-Secreting Pituitary Adenomas in Sweden
  • 2013
  • Ingår i: Journal of Clinical Endocrinology and Metabolism. - 0021-972X .- 1945-7197. ; 98:2, s. 626-635
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Context: TSH-secreting pituitary adenomas (TSHomas) are rare. Epidemiological data are scant and there are no reports on national incidence. Objective: The objective of the study was to estimate the national Swedish incidence and prevalence of TSHomas. Design: This was an observational study. Setting: The study was conducted at tertiary referral centers. Patients: The Swedish Pituitary Registry and World Health Organization International Statistical Classification of Diseases and Related Health Problems coding at all university hospitals were used to identify patients diagnosed with TSHomas 1990-2010. The identified patients' medical records were studied until the latest follow-up [median 5.0 years (range &lt; 1-20 years)]. Main Outcome Measurements: Incidence, prevalence, demographics, tumor characteristics, treatment outcome, and thyroid hormone level at diagnosis were measured. Results: The age-standardized national incidence of 28 TSHoma patients was 0.15 per 1 million inhabitants per year, with an increasing incidence over time (0.05 per 1 million per year in 1990-1994 to 0.26 per 1 million per year in 2005-2009). The national prevalence in 2010 was 2.8 per 1 million inhabitants, in which 0.85 per 1 million had active disease. Most patients (n = 22) underwent pituitary surgery, 5 had radiotherapy, and 6 had somatostatin analogues. Eighteen patients were considered cured at the latest follow-up; 25% remained uncontrolled. Subjects treated for putative primary hyperthyroidism prior to diagnosis had TSH levels more than double those with intact thyroid at diagnosis (P = .013). The median time to diagnosis was longer for women than men (4 vs &lt; 1 year, P = .026). More women than men were treated surgically (94.1% vs 54.5%, P = .022). Conclusion: This is the first estimate of a national incidence of TSHoma. Additional epidemiological studies are needed to compare these results with other geographical areas. This study suggests an increased incidence of TSHomas, in agreement with reports on other pituitary adenomas.</p>
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10.
  • Onnestam, Lisa, et al. (författare)
  • National Incidence and Prevalence of TSH-Secreting Pituitary Adenomas in Sweden
  • 2013
  • Ingår i: Journal of Clinical Endocrinology and Metabolism. - Endocrine Society. - 0021-972X .- 1945-7197. ; 98:2, s. 626-635
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Context: TSH-secreting pituitary adenomas (TSHomas) are rare. Epidemiological data are scant and there are no reports on national incidence. less thanbrgreater than less thanbrgreater thanObjective: The objective of the study was to estimate the national Swedish incidence and prevalence of TSHomas. less thanbrgreater than less thanbrgreater thanDesign: This was an observational study. less thanbrgreater than less thanbrgreater thanSetting: The study was conducted at tertiary referral centers. less thanbrgreater than less thanbrgreater thanPatients: The Swedish Pituitary Registry and World Health Organization International Statistical Classification of Diseases and Related Health Problems coding at all university hospitals were used to identify patients diagnosed with TSHomas 1990-2010. The identified patients medical records were studied until the latest follow-up [median 5.0 years (range andlt; 1-20 years)]. less thanbrgreater than less thanbrgreater thanMain Outcome Measurements: Incidence, prevalence, demographics, tumor characteristics, treatment outcome, and thyroid hormone level at diagnosis were measured. less thanbrgreater than less thanbrgreater thanResults: The age-standardized national incidence of 28 TSHoma patients was 0.15 per 1 million inhabitants per year, with an increasing incidence over time (0.05 per 1 million per year in 1990-1994 to 0.26 per 1 million per year in 2005-2009). The national prevalence in 2010 was 2.8 per 1 million inhabitants, in which 0.85 per 1 million had active disease. Most patients (n = 22) underwent pituitary surgery, 5 had radiotherapy, and 6 had somatostatin analogues. Eighteen patients were considered cured at the latest follow-up; 25% remained uncontrolled. Subjects treated for putative primary hyperthyroidism prior to diagnosis had TSH levels more than double those with intact thyroid at diagnosis (P = .013). The median time to diagnosis was longer for women than men (4 vs andlt; 1 year, P = .026). More women than men were treated surgically (94.1% vs 54.5%, P = .022). less thanbrgreater than less thanbrgreater thanConclusion: This is the first estimate of a national incidence of TSHoma. Additional epidemiological studies are needed to compare these results with other geographical areas. This study suggests an increased incidence of TSHomas, in agreement with reports on other pituitary adenomas. (J Clin Endocrinol Metab 98: 626-635, 2013)</p>
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