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1.
Eur Urol Open Sci ; 50: 57-60, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36874175

ABSTRACT

The tumour markers alpha-fetoprotein (AFP), beta human chorionic gonadotropin (ßHCG), and lactate dehydrogenase (LDH) have established roles in the management and follow-up of testicular cancer. While a tumour marker rise can serve as an indicator of relapse, the frequency of false-positive marker events has not been studied systematically in larger cohorts. We assessed the validity of serum tumour markers for the detection of relapse in the Swiss Austrian German Testicular Cancer Cohort Study (SAG TCCS). This registry was set up to answer questions on the diagnostic performance and impact of imaging and laboratory tests in the management of testicular cancer, and has included 948 patients between January 2014 and July 2021.A total of 793 patients with a median follow-up of 29.0 mo were included. In total, 71 patients (8.9%) had a proven relapse, which was marker positive in 31 patients (43.6%). Of all patients, 124 (15.6%) had an event of a false-positive marker elevation. The positive predictive value (PPV) of the markers was limited, highest for ßHCG (33.8%) and lowest for LDH (9.4%). PPV tended to increase with higher levels of elevation. These findings underline the limited accuracy of the conventional tumour markers to indicate or rule out a relapse. Especially, LDH as part of routine follow-up should be questioned. Patient summary: With the diagnosis of testicular cancer, the three tumour markers alpha-fetoprotein, beta human chorionic gonadotropin, and lactate dehydrogenase are routinely measured during follow-up to monitor for relapse. We demonstrate that these markers are often falsely elevated, and, by contrast, many patients do not have marker elevations despite a relapse. The results of this study can lead to improved use of these tumour markers during follow-up of testis cancer patients.

2.
Gesundheitswesen ; 84(6): 490-494, 2022 Jun.
Article in German | MEDLINE | ID: mdl-35675829

ABSTRACT

The concept of a 'medical necessity' (medN) of interventions is used as a dichotomous attribute with steering and orientating function in various contexts without, however, being precisely defined. We see this lack as a virtue if medN is understood as the dynamic result of transparent, trustworthy, and coherent deliberative procedures on both facts and norms. We suggest using the medN concept relative to health care systems, but independent of economic aspects.


Subject(s)
Delivery of Health Care , Germany
3.
Nature ; 607(7917): 156-162, 2022 07.
Article in English | MEDLINE | ID: mdl-35732738

ABSTRACT

The metastatic spread of cancer is achieved by the haematogenous dissemination of circulating tumour cells (CTCs). Generally, however, the temporal dynamics that dictate the generation of metastasis-competent CTCs are largely uncharacterized, and it is often assumed that CTCs are constantly shed from growing tumours or are shed as a consequence of mechanical insults1. Here we observe a striking and unexpected pattern of CTC generation dynamics in both patients with breast cancer and mouse models, highlighting that most spontaneous CTC intravasation events occur during sleep. Further, we demonstrate that rest-phase CTCs are highly prone to metastasize, whereas CTCs generated during the active phase are devoid of metastatic ability. Mechanistically, single-cell RNA sequencing analysis of CTCs reveals a marked upregulation of mitotic genes exclusively during the rest phase in both patients and mouse models, enabling metastasis proficiency. Systemically, we find that key circadian rhythm hormones such as melatonin, testosterone and glucocorticoids dictate CTC generation dynamics, and as a consequence, that insulin directly promotes tumour cell proliferation in vivo, yet in a time-dependent manner. Thus, the spontaneous generation of CTCs with a high proclivity to metastasize does not occur continuously, but it is concentrated within the rest phase of the affected individual, providing a new rationale for time-controlled interrogation and treatment of metastasis-prone cancers.


Subject(s)
Breast Neoplasms , Neoplasm Metastasis , Sleep , Animals , Breast Neoplasms/pathology , Cell Count , Cell Proliferation , Disease Models, Animal , Female , Glucocorticoids , Humans , Insulin , Melatonin , Mice , Neoplasm Metastasis/pathology , Neoplastic Cells, Circulating/pathology , RNA-Seq , Single-Cell Analysis , Testosterone , Time Factors
4.
Eur Urol Open Sci ; 40: 16-18, 2022 Jun.
Article in English | MEDLINE | ID: mdl-35515270

ABSTRACT

Incidental detection of urogenital tumors has increased in recent decades owing to the greater use of ultrasonography and cross-sectional imaging. For patients with low-risk prostate cancer or small renal masses, active surveillance represents a valid treatment option. Similarly, for men with small testicular masses <10 mm, active surveillance has been discussed as an alternative to surgery, although little is known regarding the behavior of small testicular germ cell tumors (GCTs). In the Swiss Austrian German Testicular Cancer Cohort Study we identified 849 patients (546 seminoma, 303 nonseminoma) treated with radical inguinal orchiectomy for GCT with a median tumor diameter of 35 mm. A tumor diameter <10 mm was observed in 25 patients (13 seminoma, 12 nonseminoma). Of these, five patients (20%) presented with primary metastatic disease, all of whom had elevated tumor markers and nonseminomatous GCTs. Two patients (8%) with initially localized disease (1 seminoma, 1 nonseminoma) and without elevated tumor markers experienced relapse at 4 mo (nonseminoma) and 14 mo (seminoma) after orchiectomy, despite the fact that the latter had received adjuvant chemotherapy. These findings highlight the metastatic potential of small testicular GCTs and raise the question of whether active surveillance for small testicular masses is safe. Patient summary: This study on testicular cancer assesses the metastatic potential of small testicular germ cell tumors. Men with small testicular masses should be counseled about the malignant potential of small testicular germ cell tumors.

5.
J Perinat Med ; 49(8): 959-964, 2021 Oct 26.
Article in English | MEDLINE | ID: mdl-34469636

ABSTRACT

First mapping the main ethical issues surrounding prenatal testing, we then analyze which concerns are specific to non-invasive methods. Presupposing the privatization premise for reproductive autonomy in fundamentally liberal societies, we go on to specify common concerns about non-invasive prenatal testing (NIPT) covered by the term 'routinization', and conceptually unravel the frequently expressed worry of increasing 'pressure' to test and/or terminate affected pregnancies. We argue that mindful decision-making should be a key educational goal (not only) of NIPT counseling which could be achieved through stepwise disclosure. In addition, we identify indirect social pressure as the most plausible threat to reproductive freedom. While continuous efforts need to be made to prevent such pressure - not least by ensuring balanced availability of options -, restricting testing options, and thus freedom of choice, cannot be the answer to this concern. Lastly, we suggest abandoning the vague term 'routinization' and instead focusing on specified concerns to enable a fruitful debate.


Subject(s)
Diagnostic Tests, Routine/psychology , Noninvasive Prenatal Testing/ethics , Sociological Factors , Female , Humans , Pregnancy
7.
Nervenarzt ; 91(8): 684-690, 2020 Aug.
Article in German | MEDLINE | ID: mdl-32617632

ABSTRACT

Reflecting on results of recent placebo research, this article analyzes relevant key concepts and ethical positions. "Placeboids" and possibly open-label placebo treatments should replace any deceptive use of sham medication. Their use should give rise to a critical consideration of the modern patient-physician relationship.


Subject(s)
Placebo Effect , Deception , Ethics, Medical , Humans , Morals , Physician-Patient Relations
8.
Z Gerontol Geriatr ; 52(8): 774-781, 2019 Dec.
Article in German | MEDLINE | ID: mdl-31628610

ABSTRACT

Advance directives and durable powers of attorney are two increasingly used tools for patients' precedent autonomy; however, their combined use, as recommended by major institutions in Germany, might in reality result in various discrepancies between the wording and interpretation of the directive and the surrogate's understanding of the patient's relevant will. In one of the possible conflict constellations, the surrogate wants to overrule a relevant and unambiguous advance directive by reference to a privileged access to the patient's "real" treatment preferences or the presumed will of the patient. Such cases, which must be strictly distinguished from cases with real or alleged leeway for interpretation in the advance directive, can lead to normative uncertainty as well as to substantial psychological distress for all persons involved. Based on an exemplary real clinical case from 2015 (which did not go to court) legal, ethical and pragmatic aspects of the described constellation are discussed. Ethically, caution should be exercised against a relapse into a masked treatment paternalism, which currently seems to be partly caused by judicial exegesis.


Subject(s)
Advance Directives , Spouses , Germany , Humans
9.
Gesundheitswesen ; 81(11): 933-944, 2019 Nov.
Article in German | MEDLINE | ID: mdl-31614386

ABSTRACT

OBJECTIVES: "Medical necessity" (MedN) is a fuzzy term. Our project aims at concretising the concept between medical ethics, social law, and social medicine to support health care regulation, primarily within Germany's statutory health insurance system. In a previous publication we identified MedN as a tripartite predicate: A specific clinical condition requires a specific medical intervention to reach a specific medical goal. Our two-part text searches for and discusses criteria to classify medical methods as generally medically necessary (medn), provided a non-trivial clinical condition and a relevant, legitimate, and reachable goal actually exist. In this paper we present the first part of our results. METHODS: Based on an extensive ethical, sociolegal and sociomedical body of literature, and starting with an non-controversial case vignette (thrombolysis in acute stroke), we generally followed a critical reconstructive approach. First we defined the term "medical method". In several interdisciplinary rounds, we then collected and discussed criteria from three sources: methods to develop clinical practice guidelines as compendia of indication rules, the National Model of Prioritisation in Swedish Health Care, and the HTA Core Model of the European Network for Health Technology Assessment as an instrument of political counselling. RESULTS: We identified general clinical efficacy and benefit as the 2 main "medical" criteria of MedN. As a third - epistemic - criterion, the corresponding bodies of evidence are always to be considered. Since clinical and prioritising guidelines grade their recommendations, the question arises whether MedN should be conceptualised as a dichotomous or finer graded predicate. In accord with German social law we advocate for the binary form. Further discussions focused on multifactorial MedN-configurations, the range of the term, and the variability of evidence requirements. CONCLUSIONS: No matter how the content of MedN is conceptualised, it seems impossible to include its criteria in an algorithm. So deliberative effort is indispensable at any stage of developing a programme to classify medical methods as medically necessary.


Subject(s)
Ethics, Medical , Technology Assessment, Biomedical , Algorithms , Germany , Humans
10.
Gesundheitswesen ; 81(11): 945-954, 2019 Nov.
Article in German | MEDLINE | ID: mdl-31597188

ABSTRACT

OBJECTIVES: "Medical necessity" (MedN) is a fuzzy term. Our project aims at concretising the concept between medical ethics, social law, and social medicine to support health care regulation, primarily within Germany's statutory health insurance system. In Part I, we identified efficacy, (net)benefit, and the corresponding bodies of evidence as obligatory criteria of MedN. This is the second part suggesting and discussing further criteria. METHODS: See Part I RESULTS: (Part II): As further MedN-criteria we critically assessed a method's effectiveness and acceptance in routine care, its potential beneficiaries, theoretical fundament, cost, and being without alternative as well as patients' self-responsibility, cooperation, and preferences. Since MedN has both lower and upper bounds, we had to consider certain cases of mis- and overuse, due for instance to "indication creep" or "disease mongering". CONCLUSIONS: The additional criteria neither establish MedN (when met singly or together) nor exclude it (when not met). If MedN is rejected in view of the 3 obligatory criteria then further information does not overturn the verdict. If a method is already assessed as being medn then further criteria do not make it "more or less necessary". Though we advocated for a binary MedN-concept (Part I) we are nonetheless convinced that not all medical methods deemed medn are equally medically relevant. Respective differences within the range of MedN could be assessed by techniques to prioritise medical conditions, methods, and aims.


Subject(s)
Delivery of Health Care , Ethics, Medical , Germany , Humans , Legislation, Medical , National Health Programs
11.
Ann Anat ; 225: 11-16, 2019 Sep.
Article in English | MEDLINE | ID: mdl-31125600

ABSTRACT

"Mortui vivos docent". Learning from donated bodies is widely considered a corner stone in pre-clinical education, advanced clinical training, and scientific progress in medicine. Making such use of dead human bodies must, of course, accord with high ethical standards and legal constraints. Piety and respect towards donors require using their remains (i) for valuable purposes, (ii) with what we call 'practical decency', (iii) in an efficient way, and (iv) with the utmost safety for all parties involved. With regard to these goals, practical aspects of preservation, safekeeping procedures (for up to several years), and complete documentation become of great importance, but have so far only been realized unsatisfactorily. Here, we describe the new Safe-Keeping System-Münster (SKS-Münster) that has been developed and implemented in the Anatomy Department of the University of Münster. Integrated components of the system include a paternoster transport system, a removal station with ventilation and an air barrier, RFID transponder technology, and an easy to use software package allowing the system together to provide all required functions in an unprecedented way.


Subject(s)
Cadaver , Dissection/ethics , Dissection/standards , Preservation, Biological/ethics , Preservation, Biological/standards , Tissue and Organ Procurement/standards , Anatomy/education , Cryopreservation/ethics , Cryopreservation/standards , Education, Medical/ethics , Education, Medical/standards , Embalming/ethics , Embalming/standards , Germany , Humans , Pathology/education , Safety , Schools, Medical/ethics , Schools, Medical/standards , Students, Medical , Tissue and Organ Procurement/ethics , Tissue and Organ Procurement/legislation & jurisprudence
13.
Int J Soc Psychiatry ; 64(8): 737-744, 2018 Dec.
Article in English | MEDLINE | ID: mdl-30370816

ABSTRACT

BACKGROUND: Advance directives enable patients to ensure that treatment decisions will be based on their autonomous will, even if they are incompetent at the time at which the treatment decision is taken. Although psychiatric advance directives are legally binding in Germany and their benefits are widely acknowledged, they are still infrequently used in German psychiatric practice. AIMS: The aim of this study is to assess psychiatrists' attitudes toward the use of advance statements in mental health care. METHODS: A postal survey of psychiatrists in Germany was carried out to examine their views on advance statements in psychiatry. The survey addressed psychiatrists' experiences of and attitudes toward different types of advance statements, including psychiatric advance statements written by patients without any specific assistance, and joint crisis plans ( 'Behandlungsvereinbarungen'), where involvement of the clinical team is required. A total of 396 responded. RESULTS: Results suggest that generally speaking, respondents held favorable views on joint crisis plans for mental health care. In all, 80.7% of participants agreed that more frequent use of joint crisis plans in clinical practice would be desirable. However, clinicians' attitudes differ largely depending on the type of advance statement. Implications for the use of advance statements in psychiatry are discussed. CONCLUSION: The findings suggest that increasing the support structures available to train physicians and inform patients could lead to increased adoption of advance statements.


Subject(s)
Advance Directives/psychology , Attitude of Health Personnel , Living Wills/psychology , Mental Competency , Mental Disorders/psychology , Mental Health Services , Mental Health , Decision Making , Female , Germany , Humans , Male , Mental Health/ethics , Mental Health/standards , Mental Health Services/ethics , Mental Health Services/organization & administration , Middle Aged , Needs Assessment , Psychiatry/statistics & numerical data , Surveys and Questionnaires
15.
Swiss Med Wkly ; 148: w14640, 2018.
Article in English | MEDLINE | ID: mdl-30044478

ABSTRACT

BACKGROUND: The majority of germ cell tumour (GCT) patients can be cured by orchiectomy followed by active surveillance or subsequent systemic and/or local treatments. There are various guidelines for a structured follow-up including radiographic and clinical examinations. OBJECTIVE: The Swiss Austrian German Testicular Cancer Cohort Study (SAG TCCS) prospectively evaluates follow-up, indicator of relapse and late toxicities. This is a descriptive analysis; we present baseline characteristics and treatment strategies for the first 299 patients with primary GCT or relapsed GCT after completion of treatment. RESULTS: Of the patients included in this study, 192 (64.2%) had seminoma and 107 (35.8%) non-seminoma. Mean age was 41 years (standard deviation [SD] 11.7) for seminoma and 31 (SD 9.3) years for non-seminoma patients. Median tumour size was 3.5 cm (interquartile range 2.5¬â€’5.0 and 2.3‒4.5 in seminoma and non-seminoma, respectively) in both histological groups. Among seminoma patients, 81 (42.2%) had primary tumours >4cm; 154 (80.2%) seminoma patients had stage I, 26 (13.5%) stage II and 12 (6.3%) stage III disease. Fifty-seven (53.3%) non-seminoma tumours were stage I, 29 (27.1%) stage II and 21 (19.6%) stage III. Marker-positive disease was present in 58 (30.2%) seminoma patients and 78 (72.9%) non-seminoma patients. Of 154 stage I seminoma patients, 89 (57.8%) chose active surveillance and 65 (42.2%) adjuvant chemotherapy. Twenty-six (45.6%) stage I non-seminoma patients had high-risk disease; 23 of these were treated with adjuvant chemotherapy and 3 chose active surveillance. Among the 30 (52.6%) low risk stage I patients, all opted for active surveillance. Twelve (46.2%) stage II seminoma patients had radiotherapy, 14 (53.8%) were treated with three to four cycles of chemotherapy. All stage III seminoma patients, and all stage II and III non-seminoma patients were treated with three to four cycles of chemotherapy. Treatment decisions were made at the respective centre. Eleven patients did not receive therapy that conformed with guidelines. CONCLUSION: It is important to enrol GCT patients in prospective studies in general, but also in follow-up studies to assess baseline characteristics, oncological outcome, and long-term toxicity and to validate the performance of follow-up schedules. This is the first time that the distribution of disease, detailed baseline characteristics and the respective treatment of men with GCT is collected in a prospective manner in German speaking countries (Switzerland, Austria and Germany) and therefore patterns of care have been evaluated. SAG TCCS results will inform on future modifications of surveillance schedules and follow-up procedures. TRIAL REGISTRATION NUMBER: NCT02229916 (Clinicaltrials.gov).


Subject(s)
Combined Modality Therapy , Neoplasm Recurrence, Local/therapy , Neoplasm Staging , Neoplasms, Germ Cell and Embryonal , Seminoma , Testicular Neoplasms , Adult , Austria , Chemotherapy, Adjuvant , Germany , Humans , Male , Neoplasms, Germ Cell and Embryonal/diagnosis , Neoplasms, Germ Cell and Embryonal/therapy , Orchiectomy , Prospective Studies , Radiotherapy, Adjuvant , Seminoma/diagnosis , Seminoma/therapy , Switzerland , Testicular Neoplasms/diagnosis , Testicular Neoplasms/therapy
16.
Z Evid Fortbild Qual Gesundhwes ; 129: 41-45, 2017 Dec.
Article in German | MEDLINE | ID: mdl-29153357

ABSTRACT

Choosing Wisely and Klug Entscheiden (KE) are recent physician-triggered campaigns that aim at identifying and reducing blatant over-treatment as well as - a specialty of KE - occurring under-treatment. This paper provides some conceptual and normative analyses of these campaigns' goals and justifications.


Subject(s)
Ethics, Medical , Evidence-Based Medicine , Morals , Germany , Humans
17.
MMW Fortschr Med ; 159(16): 35, 2017 Sep.
Article in German | MEDLINE | ID: mdl-28952093
19.
BMC Cancer ; 17(1): 265, 2017 04 13.
Article in English | MEDLINE | ID: mdl-28407750

ABSTRACT

BACKGROUND: To evaluate the effect of Recurrence Score® results (RS; Oncotype DX® multigene assay ODX) on treatment recommendations by Swiss multidisciplinary tumor boards (TB). METHODS: SAKK 26/10 is a multicenter, prospective cohort study of early breast cancer patients: Eligibility: R0-resection, ≥10% ER+ malignant cells, HER2-, pN0/pN1a. Patients were stratified into low-risk (LR) and non-low-risk (NLR) groups based on involved nodes (0 vs 1-3) and five additional predefined risk factors. Recommendations were classified as hormonal therapy (HT) or chemotherapy plus HT (CT + HT). Investigators were blinded to the statistical analysis plan. A 5%/10% rate of recommendation change in LR/NLR groups, respectively, was assumed independently of RS (null hypotheses). RESULTS: Two hundred twenty two evaluable patients from 18 centers had TB recommendations before and after consideration of the RS result. A recommendation change occurred in 45 patients (23/154 (15%, 95% CI 10-22%) in the LR group and 22/68 (32%, 95% CI 22-45%) in the NLR group). In both groups the null hypothesis could be rejected (both p < 0.001). Specifically, in the LR group, only 5/113 (4%, 95% CI 1-10%) with HT had a recommendation change to CT + HT after consideration of the RS, while 18/41 (44%, 95% CI 28-60%) of patients initially recommended CT + HT were subsequently recommended only HT. In the NLR group, 3/19 (16%, 95% CI 3-40%) patients were changed from HT to CT + HT, while 19/48 (40%, 95% CI 26-55%) were changed from CT + HT to HT. CONCLUSION: There was a significant impact of using the RS in the LR and the NLR group but only 4% of LR patients initially considered for HT had a recommendation change (RC); therefore these patients could forgo ODX testing. A RC was more likely for NLR patients considered for HT. Patients considered for HT + CT have the highest likelihood of a RC based on RS.


Subject(s)
Antineoplastic Agents/administration & dosage , Breast Neoplasms/drug therapy , Receptor, ErbB-2/genetics , Receptors, Estrogen/genetics , Adult , Aged , Aged, 80 and over , Antineoplastic Agents/therapeutic use , Breast Neoplasms/genetics , Chemotherapy, Adjuvant , Clinical Decision-Making , Cohort Studies , Female , Humans , Middle Aged , Risk Assessment , Treatment Outcome
20.
J Am Med Dir Assoc ; 17(4): 294-9, 2016 Apr 01.
Article in English | MEDLINE | ID: mdl-26922808

ABSTRACT

OBJECTIVES: Whether health care professionals should respect a properly executed advance directive (AD) refusing life support in late-stage dementia even if the patient seems contented, is an ethically contested issue. We undertook a nationwide survey to assess this problem and to test a practical solution. DESIGN: Nationwide survey using a questionnaire among 4 stakeholder groups. SETTING: Germany. PARTICIPANTS: Adult Germans (n = 735), among them: dementia-experienced physicians (n = 161), dementia-experienced nurses (n = 191), next of kin (n = 197), and dementia-inexperienced adults (n = 186). MEASUREMENTS: Participants were asked about their attitudes on medical decision-making in a vignette case of treatable pneumonia, for their agreement or disagreement on standard ethical arguments in this debate, and for their views on modified versions of the case. One such modification was an explicit anticipation of the conflict in question by the patients themselves. RESULTS: Of our 735 eligible respondents, 25% were unwilling to follow the patient's AD. Standard arguments for and against respecting the directive were endorsed to different degrees. Respondents' unwillingness to follow the directive was significantly decreased (to 16.3%, P < .001), if the advance refusal of pneumonia treatment explicitly indicated that it applied to a patient who appears content in his demented state. Only 8.7% of respondents would disregard an advance refusal of tube feeding. CONCLUSIONS: Persons executing ADs forbidding life support in late-stage dementia run some risk that these will not be followed if they later appear "happy" in their dementia. It seems ethically and practically advisable to incorporate an explicit meta-directive for this conflict.


Subject(s)
Advance Directives , Attitude of Health Personnel , Dementia/complications , Pneumonia/complications , Pneumonia/therapy , Aged , Decision Making , Female , Germany , Humans , Male , Mental Competency , Physicians/psychology , Surveys and Questionnaires
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