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Seljelid B, Varsi C, Solberg Nes L, Øystese KA, Børøsund E. Feasibility of a Digital Patient–Provider Communication Intervention to Support Shared Decision Making in Chronic Health Care, InvolveMe: A Pilot Study (Preprint). JMIR Form Res 2021; 6:e34738. [PMID: 35389356 PMCID: PMC9030980 DOI: 10.2196/34738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/21/2022] [Accepted: 03/14/2022] [Indexed: 01/19/2023] Open
Abstract
Background Enhanced communication with health care providers (HCPs) can improve symptom management and health-related quality of life (HRQoL) for patients with chronic health conditions. Access to appropriate communication venues is needed to improve communication, however. As such, digital communication interventions mediated by patient portals carry the potential to support patient-provider communication and interaction and through this, also facilitate shared decision-making (SDM). The InvolveMe intervention was designed to provide patients with the opportunity to communicate symptoms and informational needs prior to consultation via digital assessment, including prioritizing what is most important to discuss with their HCPs, as well as to interact with HCPs through secure messages between outpatient visits. Objective The aim of this study was to assess the feasibility of the InvolveMe intervention by investigating acceptability, demand (ie, system use), and limited efficacy. Methods The study was designed as a single-arm, pre-post feasibility study combining quantitative and qualitative methods for data collection. Patients from an endocrine outpatient clinic were invited to use the InvolveMe intervention for 3 months, and HCPs administering InvolveMe were invited to participate in a focus group. Guided by descriptions of how to design feasibility studies by Bowen et al, feasibility was tested by exploring (1) acceptability, using data collected during recruitment from patient participants and nonparticipants (ie, declined to participate or did not meet study requirements), HCP experiences with recruitment, and the System Usability Scale (SUS); (2) demand via exploration of system use through extraction of system log data and HCP experiences with system use; and (3) limited efficacy testing, via exploration of potential effects from the Short-Form Health Survey (RAND 36), Hospital Anxiety and Depression Scale, and Health Literacy Questionnaire. Results Patient participants (N=23) were a median 54 (range 26-78) years old and primarily male (14/23, 61%). Nonparticipants (N=16) were a median 73 (range 55-80) years old and primarily male (12/16, 75%). The average SUS score was 72.2, indicating good system usability. Assessments were completed by 8 participants from home prior to outpatient visits. The assessments entailed various bodily symptoms and needs for information. Participants sent 17 secure messages related to patient administrative matters, symptoms, and challenges. Focus group participants (N=4) were all female and registered nurses. Data were analyzed in 2 predefined themes: Acceptability and Demand. Acceptability included the subthemes intervention attractiveness and intervention suitability. Demand included the subthemes elements of SDM and intervention challenges and opportunities. All patient participants completed outcome measures at baseline, and 19 (19/23, 83%) completed outcome measures at 3 months. These preliminary efficacy findings were mixed and inconclusive. Conclusions The study design provided findings from both patient and HCP perspectives and supported feasibility of the InvolveMe intervention. The investigation of acceptability and demand supported the potential for remote SDM mediated by patient portals using assessments and secure messages. Trial Registration ClinicalTrials.gov NCT NCT04218721; https://www.clinicaltrials.gov/ct2/show/NCT04218721
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Affiliation(s)
- Berit Seljelid
- Department of Digital Health Research, Division of Medicine, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Cooperation, Patient Education and Equivalent Health Services, Oslo University Hospital, Oslo, Norway
| | - Cecilie Varsi
- Department of Digital Health Research, Division of Medicine, Oslo University Hospital, Oslo, Norway
- Faculty of Health and Social Sciences, University of South-Eastern Norway, Drammen, Norway
| | - Lise Solberg Nes
- Department of Digital Health Research, Division of Medicine, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Psychiatry & Psychology, College of Medicine & Science, Mayo Clinic, Rochester, MN, United States
| | - Kristin Astrid Øystese
- Section of Specialized Endocrinology, Department of Endocrinology, Morbid Obesity and Preventive Medicine, Division of Medicine, Oslo University Hospital, Oslo, Norway
- Department of Medical Biochemistry, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Elin Børøsund
- Department of Digital Health Research, Division of Medicine, Oslo University Hospital, Oslo, Norway
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Seljelid B, Varsi C, Solberg Nes L, Øystese KA, Børøsund E. A Digital Patient-Provider Communication Intervention (InvolveMe): Qualitative Study on the Implementation Preparation Based on Identified Facilitators and Barriers. J Med Internet Res 2021; 23:e22399. [PMID: 33830063 PMCID: PMC8294341 DOI: 10.2196/22399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/09/2020] [Accepted: 03/18/2021] [Indexed: 01/15/2023] Open
Abstract
Background Chronic health conditions are affecting an increasing number of individuals, who experience various symptoms that decrease their quality of life. Digital communication interventions that enable patients to report their symptoms have been shown to positively impact chronic disease management by improving access to care, patient-provider communication, clinical outcomes, and health-related quality of life. These interventions have the potential to prepare patients and health care providers (HCPs) before visits and improve patient-provider communication. Despite the recent rapid development and increasing number of digital communication interventions that have shown positive research results, barriers to realizing the benefits offered through these types of interventions still exist. Objective The aim of this study is to prepare for the implementation of a digital patient-provider communication intervention in the daily workflow at 2 outpatient clinics by identifying potential determinants of implementation using the Consolidated Framework for Implementation Research (CFIR) to tailor the use of digital communication intervention to the intended context and identify key aspects for an implementation plan. Methods A combination of focus groups, workshops, and project steering committee meetings was conducted with HCPs (n=14) and patients (n=2) from 2 outpatient clinics at a university hospital. The CFIR was used to guide data collection and analysis. Transcripts, written minutes, and notes were analyzed and coded into 5 CFIR domains using thematic analysis. Results Data were examined and analyzed into 18 CFIR constructs relevant to the study purpose. On the basis of the identified determinants, important intervention tailoring includes adjustments to the digital features and adjustments to fit the clinical workflow and a decision to conduct a future pilot study. Furthermore, it was decided to provide the intervention to patients as early as possible in their disease trajectory, with tailored information about its use. Key aspects for the implementation plan encompassed maintaining the identified engagement and positive attitude, involving key stakeholders in the implementation process, and providing the needed support and training. Conclusions This study offers insight into the involvement of stakeholders in the tailoring and implementation planning of a digital communication intervention in clinical practice. Stakeholder involvement in the identification of implementation facilitators and barriers can contribute to the tailoring of digital communication interventions and how they are used and can also inform systematic and targeted implementation planning.
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Affiliation(s)
- Berit Seljelid
- Department of Digital Health Research, Division of Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Department of Cooperation, Patient Education and Equivalent Health Services, CEO's Staff, Oslo University Hospital, Oslo, Norway
| | - Cecilie Varsi
- Department of Digital Health Research, Division of Medicine, Oslo University Hospital, Oslo, Norway.,Faculty of Health and Social Sciences, University of South-Eastern Norway, Drammen, Norway
| | - Lise Solberg Nes
- Department of Digital Health Research, Division of Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Department of Psychiatry & Psychology, College of Medicine & Science, Mayo Clinic, Rochester, MN, United States
| | - Kristin Astrid Øystese
- Section of Specialized Endocrinology, Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway.,Department of Medical Biochemistry, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Elin Børøsund
- Department of Digital Health Research, Division of Medicine, Oslo University Hospital, Oslo, Norway
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Voll M, Øystese KA, Høiskar E, Johansen O, Nyvold C, Norheim I, von Lueder TG, Andersen GØ. Case report: a patient with thyroid storm, refractory cardiogenic shock, and cardiac arrest treated with Lugol's iodine solution and veno-arterial extra corporal membrane oxygenation support. Eur Heart J Case Rep 2021; 5:ytab017. [PMID: 33569532 PMCID: PMC7859599 DOI: 10.1093/ehjcr/ytab017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/01/2020] [Accepted: 12/15/2020] [Indexed: 12/18/2022]
Abstract
Background Thyroid storm is a life-threatening condition. Refractory cardiogenic shock and cardiac arrest are rare complications of thyroid storm and the treatment options are limited. Case summary A 35-year- old woman treated for Grave’s disease was admitted with thyrotoxicosis complicated by infection and neutropenia caused by thionamide treatment. After treatment including beta-blockers, steroids, and Lugol’s iodine solution, she went into cardiac arrest. Echocardiography after resuscitation demonstrated severe biventricular heart failure. The patient was in refractory cardiogenic shock with recurrent cardiac arrest and mechanical circulatory support with a veno-arterial extra corporal membrane oxygenation (V-A ECMO) circuit was established. After 2 days on V-A ECMO and supportive treatment with iodine solution, glucocorticosteroids, and levosimendan, her myocardial function recovered and thyroid hormone levels were normalized. Veno-arterial extra corporal membrane oxygenation was discontinued, and the patient was treated with early total thyroidectomy. The patient made a full recovery with no neurological/cognitive impairment, as assessed after 4 weeks. Discussion Adverse reactions to standard treatment of hyperthyroidism contributed to this patient’s development of thyroid storm and the following refractory cardiogenic shock. When she was critically unstable, levosimendan improved myocardial function while inotropic support with dobutamine was ineffective, likely due to prolonged beta-antagonist administration. Temporary support with V-A ECMO, until effective lowering of thyroid hormone levels and improvement in myocardial function were obtained, was life-saving in this young patient and may be considered in refractory cardiogenic shock caused by thyroid storm.
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Affiliation(s)
- Marianne Voll
- Department of Cardiology, Oslo University Hospital, Ullevål, Norway
| | - Kristin Astrid Øystese
- Departement of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Norway.,Department of Medical Biochemistry, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norway
| | - Erik Høiskar
- Departement of Anesthesiology, Oslo University Hospital, Ullevål, Norway
| | - Odd Johansen
- Department of Cardiology, Interventional Cardiology, Oslo University Hospital, Ullevål, Norway
| | - Cecilie Nyvold
- Department of Emergency Medicine, Oslo University Hospital, Ullevål, Norway
| | - Ingrid Norheim
- Department of Endocrinology, Oslo University Hospital, Aker, Norway
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Kolnes AJ, Øystese KA, Dahlberg D, Berg-Johnsen J, Niehusmann P, Pahnke J, Bollerslev J, Jørgensen AP. Cut-off values for sufficient cortisol response to low dose Short Synacthen Test after surgery for non-functioning pituitary adenoma. Acta Neurochir (Wien) 2020; 162:845-852. [PMID: 31907611 DOI: 10.1007/s00701-019-04068-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 09/09/2019] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The aim was to study the prevalence of secondary adrenal insufficiency before and after surgery for non-functioning pituitary adenomas, as well as determine risk factors for developing secondary adrenal insufficiency. A secondary aim was to determine adequate p-cortisol response to a 1-μg Short Synacthen Test after surgery. DESIGN Longitudinal cohort study. METHODS One hundred seventeen patients (52/65 females/males, age 59 years) undergoing primary surgery for clinically non-functioning pituitary adenomas were included. P-cortisol was measured in morning blood samples. Three months after surgery, a Short Synacthen Test was performed. RESULTS All tumours were macroadenomas (mean size 26.9 mm, range 13-61 mm). The surgical indications were visual impairment (93), tumour growth (16), pituitary apoplexy (6) and headache (2). Before surgery, 17% of the patients had secondary adrenal insufficiency (SAI), decreasing to 15% 3 months postoperatively. Risk of SAI was increased in patients operated for pituitary apoplexy (p < 0.001), while age, sex, tumour size and complication rate were not different from the remaining cohort. Three months after surgery, all patients with baseline p-cortisol ≥ 172 nmol/l (6.2 μg/dl) and peak p-cortisol during Short Synacthen Test ≥ 320 nmol/l (11.6 μg/dl) tapered cortisone unproblematically. In patients with intact hypothalamic-pituitary-adrenal axis, p-cortisol peaked < 500 nmol/l (18.1 μg/dl) during Short Synacthen Test in 48% of patient. CONCLUSION Pituitary surgery is safe and transsphenoidal surgery rarely causes new SAI. Relying solely on morning p-cortisol for diagnosing secondary adrenal insufficiency gives false positives and the Short Synacthen Test remains useful. A peak p-cortisol ≥ 320 during (11.6 μg/dl) Short Synacthen Test indicates a sufficient response, while < 309 nmol/l (11.2 μg/dl) indicates secondary adrenal insufficiency.
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Affiliation(s)
- Anders Jensen Kolnes
- Section of Specialized Endocrinology, Rikshospitalet, Oslo University Hospital, Oslo, Norway.
- Faculty of Medicine, University of Oslo, Oslo, Norway.
| | - Kristin Astrid Øystese
- Section of Specialized Endocrinology, Rikshospitalet, Oslo University Hospital, Oslo, Norway
| | - Daniel Dahlberg
- Department of Neurosurgery, Rikshospitalet, Oslo University Hospital, Oslo, Norway
| | - Jon Berg-Johnsen
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Neurosurgery, Rikshospitalet, Oslo University Hospital, Oslo, Norway
| | - Pitt Niehusmann
- Department of Neuro-/pathology, Oslo University Hospital, Oslo, Norway
| | - Jens Pahnke
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Neuro-/pathology, Oslo University Hospital, Oslo, Norway
| | - Jens Bollerslev
- Section of Specialized Endocrinology, Rikshospitalet, Oslo University Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
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Falch CM, Sundaram AYM, Øystese KA, Normann KR, Lekva T, Silamikelis I, Eieland AK, Andersen M, Bollerslev J, Olarescu NC. Gene expression profiling of fast- and slow-growing non-functioning gonadotroph pituitary adenomas. Eur J Endocrinol 2018; 178:295-307. [PMID: 29259037 DOI: 10.1530/eje-17-0702] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 12/19/2017] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Reliable biomarkers associated with aggressiveness of non-functioning gonadotroph adenomas (GAs) are lacking. As the growth of tumor remnants is highly variable, molecular markers for growth potential prediction are necessary. We hypothesized that fast- and slow-growing GAs present different gene expression profiles and reliable biomarkers for tumor growth potential could be identified, focusing on the specific role of epithelial-mesenchymal transition (EMT). DESIGN AND METHODS Eight GAs selected for RNA sequencing were equally divided into fast- and slow-growing group by the tumor volume doubling time (TVDT) median (27.75 months). Data were analyzed by tophat2, cufflinks and cummeRbund pipeline. 40 genes were selected for RT-qPCR validation in 20 GAs based on significance, fold-change and pathway analyses. The effect of silencing MTDH (metadherin) and EMCN (endomucin) on in vitro migration of human adenoma cells was evaluated. RESULTS 350 genes were significantly differentially expressed (282 genes upregulated and 68 downregulated in the fast group, P-adjusted <0.05). Among 40 selected genes, 11 showed associations with TVDT (-0.669<R<-0.46, P < 0.05). These were PCDH18, UNC5D, EMCN, MYO1B, GPM6A and six EMT-related genes (SPAG9, SKIL, MTDH, HOOK1, CNOT6L and PRKACB). MTDH, but not EMCN, demonstrated involvement in cell migration and association with EMT markers. CONCLUSIONS Fast- and slow-growing GAs present different gene expression profiles, and genes related to EMT have higher expression in fast-growing tumors. In addition to MTDH, identified as an important contributor to aggressiveness, the other genes might represent markers for tumor growth potential and possible targets for drug therapy.
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Affiliation(s)
- Camilla Maria Falch
- Section of Specialized EndocrinologyDepartment of Endocrinology
- Research Institute for Internal MedicineOslo University Hospital, Oslo, Norway
- Department of Endocrinology and MetabolismOdense University Hospital, Odense, Denmark
- University of Southern DenmarkOdense, Denmark
| | | | - Kristin Astrid Øystese
- Section of Specialized EndocrinologyDepartment of Endocrinology
- Faculty of MedicineUniversity of Oslo, Oslo, Norway
| | - Kjersti Ringvoll Normann
- Section of Specialized EndocrinologyDepartment of Endocrinology
- Research Institute for Internal MedicineOslo University Hospital, Oslo, Norway
- Faculty of MedicineUniversity of Oslo, Oslo, Norway
| | - Tove Lekva
- Research Institute for Internal MedicineOslo University Hospital, Oslo, Norway
| | | | | | - Marianne Andersen
- Department of Endocrinology and MetabolismOdense University Hospital, Odense, Denmark
| | - Jens Bollerslev
- Section of Specialized EndocrinologyDepartment of Endocrinology
- Faculty of MedicineUniversity of Oslo, Oslo, Norway
| | - Nicoleta Cristina Olarescu
- Section of Specialized EndocrinologyDepartment of Endocrinology
- Research Institute for Internal MedicineOslo University Hospital, Oslo, Norway
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Øystese KA, Casar-Borota O, Normann KR, Zucknick M, Berg JP, Bollerslev J. Estrogen Receptor α, a Sex-Dependent Predictor of Aggressiveness in Nonfunctioning Pituitary Adenomas: SSTR and Sex Hormone Receptor Distribution in NFPA. J Clin Endocrinol Metab 2017; 102:3581-3590. [PMID: 28911153 DOI: 10.1210/jc.2017-00792] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 07/17/2017] [Indexed: 11/19/2022]
Abstract
CONTEXT Nonfunctioning pituitary adenomas (NFPAs) are fairly common and require a multidisciplinary approach. Reliable markers of a clinically aggressive course are lacking. Medical treatment is not available, and transsphenoidal surgery is the preferred primary treatment. OBJECTIVE We aimed to characterize the somatostatin, estrogen, and progesterone receptor distribution for NFPAs and compare it with factors of tumor aggressiveness. DESIGN Tumor samples for immunohistochemistry (n = 145) and quantitative reverse transcription polymerase chain reaction (n = 106) analyses of somatostatin receptor (SSTR) 1, SSTR2, SSTR3, SSTR5, estrogen receptor α (ERα), and progesterone receptor (PR) were measured by immunoreactive score (IRS) and messenger RNA relative quantity and retrospectively compared with variables of aggressiveness. SETTING All patients were operated at the same tertiary referral center. PARTICIPANTS A total of 164 patients with NFPA and tumor tissue from the primary operation were included. RESULTS SSTR3 was expressed abundantly by immunohistochemistry in all NFPAs. The IRS of ERα correlated with that of SSTR2 in male patients only (males, P < 0.001; females, P = 0.8). Low ERα level was linked to a higher reintervention rate (P = 0.001) and earlier reintervention (P = 0.004) in male patients only (females, P = 0.95 and P = 0.65, respectively). Absence of ERα together with age provided a good prediction model for reintervention in male patients with gonadotroph adenomas. CONCLUSIONS SSTR3 is expressed abundantly in NFPAs and is therefore a possible target for medical treatment. Absence of ERα together with young age may predict tumor recurrence in groups of NFPAs. Further validation in systematic prospective studies is needed.
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Affiliation(s)
- Kristin Astrid Øystese
- Department of Endocrinology, Section of Specialized Endocrinology, Oslo University Hospital Rikshospitalet, 0424 Oslo, Norway
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, 0316 Oslo, Norway
- Research Institute for Internal Medicine, OUS Rikshospitalet, 0424 Oslo, Norway
| | - Olivera Casar-Borota
- Department of Immunology, Genetics and Pathology, Uppsala University, Rudbeck Laboratory, 751 85 Uppsala, Sweden
- Department of Clinical Pathology and Cytology, Uppsala University Hospital, Rudbeck Laboratory, 751 85 Uppsala, Sweden
- Department of Pathology, Oslo University Hospital, 0372 Oslo, Norway
| | - Kjersti Ringvoll Normann
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, 0316 Oslo, Norway
- Research Institute for Internal Medicine, OUS Rikshospitalet, 0424 Oslo, Norway
| | - Manuela Zucknick
- Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, 0317 Oslo, Norway
| | - Jens Petter Berg
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, 0316 Oslo, Norway
- Department of Medical Biochemistry, Oslo University Hospital, 0424 Oslo, Norway
| | - Jens Bollerslev
- Department of Endocrinology, Section of Specialized Endocrinology, Oslo University Hospital Rikshospitalet, 0424 Oslo, Norway
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, 0316 Oslo, Norway
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Øystese KA, Zucknick M, Casar-Borota O, Ringstad G, Bollerslev J. Early postoperative growth in non-functioning pituitary adenomas; A tool to tailor safe follow-up. Endocrine 2017; 57:35-45. [PMID: 28516382 DOI: 10.1007/s12020-017-1314-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 04/28/2017] [Indexed: 01/13/2023]
Abstract
PURPOSE Non-functioning pituitary adenomas are common, and the treatment and follow-up of these patients represent a multidisciplinary challenge. First line treatment is transphenoidal surgery, with debulking or total removal of tumour. A substantial portion of the tumours relapse after surgery, and there is no consensus of how to follow these patients postoperatively. Our aim was to characterize the postoperative growth of non-functioning pituitary adenomas and correlate it to clinical and paraclinical data. METHODS We retrospectively registered 52 patients operated for non-functioning pituitary adenomas, with four or more consecutive MR-investigations not interrupted by secondary treatment. Adenoma volumes were estimated by the Cavalieri principle with summation of manually drawn areas multiplied by slice interval. Growth curves were modelled and tumour volume doubling time was calculated for 39 tumours with regrowth after surgery. RESULTS A total of 13 tumours showed exponential growth, 10 linear growth and 16 logistic growth after surgery. The remaining 13 did not show regrowth of tumour. Seven of the exponential growing tumours underwent secondary surgery, compared to one and two of linear and logistic growing tumours (p = 0.03), respectively. Initial tumour volume doubling time was significantly lower in logistic growing tumours than in exponential growing tumours (p < 0.01). Men had tumours with lower tumour volume doubling time than women (p = 0.03). None of the tumours demonstrated signs of accelerated growth. CONCLUSION Residual tumours following surgery frequently grow. The logistic growing tumours had the fastest initial growth in our cohort. We found no indication of accelerated growth, whereby the tumour volume doubling time might be used to predict a "worst-case" scenario when planning follow-up of these patients.
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Affiliation(s)
- Kristin Astrid Øystese
- Section of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital Rikshospitalet, P.b.4950 Nydalen, Oslo, 0424, Norway.
- Faculty of Medicine, University of Oslo, Oslo, Norway.
| | - Manuela Zucknick
- Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Olivera Casar-Borota
- Department of Immunology, Genetics and Pathology, Uppsala University, Rudbeck Laboratory, Dag Hammarskjölds väg 20, Uppsala, 751 85, Sweden
- Department of Clinical Pathology and Cytology, Uppsala University Hospital, Rudbeck Laboratory, Dag Hammarskjölds väg 20, Uppsala, 751 85, Sweden
- Department of Pathology, Oslo University Hospital, Sognsvannsveien 20, Oslo, 0372, Norway
| | - Geir Ringstad
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Radiology and Nuclear Medicine, Oslo University Hospital- Rikshospitalet, Oslo, Norway
| | - Jens Bollerslev
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Section of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital Rikshospitalet, Oslo, Norway
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Abstract
Pituitary adenomas (PAs) are common, comprising approximately one third of all intracranial tumors. Non-functioning pituitary adenomas (NFPAs) are the most common PAs. Although usually benign, the NFPAs represent therapeutic challenges because of their location close to the optic chiasm and nerves, and the proximity to the pituitary gland. The therapeutic alternatives are surgery and radiation. To date there is no effective medical treatment. NFPAs are classified according to different modalities, but there are no reliable marker of aggressiveness to guide the clinician in monitoring the patient. More information on growth patterns with constituent biological markers are needed to tailor the care of this patient group. Studies characterizing the membrane receptors of NFPAs have shown promising results, which may give rise to the development of medical treatment.
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Affiliation(s)
- Kristin Astrid Øystese
- Department of Specialized Endocrinology, Rikshospitalet, Oslo University Hospital, Pb 4950 Nydalen, 0424, Oslo, Norway.
- Faculty of Medicine, University of Oslo, Klaus Torgårdsvei 3, 0372, Oslo, Norway.
| | - Johan Arild Evang
- Department of Specialized Endocrinology, Rikshospitalet, Oslo University Hospital, Pb 4950 Nydalen, 0424, Oslo, Norway
- Faculty of Medicine, University of Oslo, Klaus Torgårdsvei 3, 0372, Oslo, Norway
| | - Jens Bollerslev
- Department of Specialized Endocrinology, Rikshospitalet, Oslo University Hospital, Pb 4950 Nydalen, 0424, Oslo, Norway
- Faculty of Medicine, University of Oslo, Klaus Torgårdsvei 3, 0372, Oslo, Norway
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