Latent class analysis differentiation of adjustment disorder and demoralization, more severe depressive and anxiety disorders, and somatic symptoms in patients with cancer.

OBJECTIVES: Demoralization as a form of existential distress involves poor coping, low morale, hopelessness, helplessness, and meaninglessness. In a secondary analysis of a cohort of German cancer patients, we aimed to explore latent class structure to assess the contribution that symptoms of demoralization make to anhedonic depression, anxiety, adjustment, and somatic disorders. METHODS: Measures of demoralization, depression, anxiety, physical symptoms, and functional impairment had been completed cross-sectionally by 1527 patients with early or advanced cancer. Latent class analysis used maximum likelihood techniques to define the unobserved latent constructs that can be predicted as symptom clusters. Individual patients were assigned to the most probable class. Classes were compared on demographics, and logistic regression assessed the odds of individual items predicting each class. RESULTS: A 4-class model provided the best fit. Class 1 (n = 829, 54.3%) was defined by the absence of distress; Classes 2 to 4 all carried functional impairment. Class 2 (n = 333, 21.8%) was differentiated by somatic symptoms (sleep, tiredness, and appetite); Class 3 (n = 163, 10.7%) by anhedonia, anxiety, and severe demoralization; and Class 4 (n = 202, 13.2%) by adjustment and moderate demoralization. Members of Class 3 were more likely to be younger, female, anhedonic, depressed, and anxious. In both Classes 3 and 4, functional impairment, physical symptom burden, and suicidal ideation were present. CONCLUSIONS: In contrast with the severe symptom cluster carrying anhedonia, anxiety, and demoralization, the moderate symptom cluster was formed by patients with demoralization and impaired functioning, a clinical picture consistent with a unidimensional model of adjustment disorder.

One in two cancer patients is significantly distressed: Prevalence and indicators of distress.

OBJECTIVE: Psychological distress is common in cancer patients, and awareness of its indicators is essential. We aimed to assess the prevalence of psychological distress and to identify problems indicative of high distress. METHODS: We used the distress thermometer (DT) and its 34-item problem list to measure psychological distress in 3724 cancer patients (mean age 58 years; 57% women) across major tumor entities, enrolled in an epidemiological multicenter study. To identify distress-related problems, we conducted monothetic analyses. RESULTS: We found high levels of psychological distress (DT ≥ 5) in 52% of patients. The most prevalent problems were fatigue (56%), sleep problems (51%), and problems getting around (47%). Sadness, fatigue, and sleep problems were most strongly associated with the presence of other problems. High distress was present in 81.4% of patients reporting all 3 of these problems (DT M = 6.4). When analyzing only the subset of physical problems, fatigue, problems getting around, and indigestion showed the strongest association with the remaining problems and 76.3% of patients with all 3 problems were highly distressed (DT M = 6.1). CONCLUSIONS: Our results show a high prevalence of psychological distress in cancer patients, as well as a set of problems that indicate the likely presence of other problems and high distress and can help clinicians identify distressed patients even if no routine distress screening is available.

Correction to: Validation of the German version of the late adolescence and young adulthood survivorship-related quality of life measure (LAYA-SRQL).

ERRATUM: The original article contained the following errors.

The daily dynamics of loss orientation and life engagement in advanced cancer: A pilot study to characterise patterns of adaptation at the end of life.

Individual adaptation at the end of life may be characterised by how patients fluctuate in their orientation towards losses and death or engagement in meaningful activities in daily life. To describe these intraindividual patterns of change, we conducted a daily diary study over 7 days with 17 advanced cancer patients from in- and outpatient oncology and psycho-oncology clinics. Patients reported on the daily frequency of behaviours associated with loss orientation and life engagement using a standardised questionnaire. We characterised each patient's pattern of change with three parameters: the mean level (5-point-scale from 0 = never to 4 = always), mean fluctuation between successive days (MSSD) and the association between changes in loss and life orientation over time. We further explored the relationship between these patterns and free-text diaries. The daily assessment protocol was acceptable and feasible (46% participation rate, 97% diary completion rate). Individuals differed in mean levels of loss orientation (range: M = 0.1 to 2.7) and life engagement (M = 0.9 to 3.9), the degree of fluctuation (MSSD = 0.1 to 1.5 and MSSD = 0.3 to 0.9), and the correlations between these changes over time (r = -.83 to +.46), revealing distinctive intraindividual patterns. Further study of individual profiles in loss and life orientation can promote personalised balancing between facing "reality" and sustaining "hope" in end-of-life conversations.

The relation between dyadic coping and relationship satisfaction in couples dealing with haematological cancer.

Couples' ability to cope with cancer is significantly associated with how satisfied they are with their relationship. However, little evidence specific to haemato-oncological patients exists. The objective of this study was to examine how dyadic coping (DC) affects relationship satisfaction among couples facing haematological cancer. Furthermore, we tested complex interactions between distress, disease-related and socio-demographic factors. In a multicentre study, 327 patients (haemato-oncological cancer; mean age: 57 years, 63% male) and their partners responded to surveys examining their relationship satisfaction, DC and distress. The Actor-Partner-Interdependence-Model (APIM) and moderator analyses were used to assess interactions between these concepts. In the APIM, positive DC was significantly related to greater levels of relationship satisfaction, and negative DC was related to lower levels of relationship satisfaction (all p < .001). The partners' distress was significantly related to lower levels of relationship satisfaction of the partners (p < .05). Furthermore, distress, age and relationship duration had significant moderating effects on the association between DC and relationship satisfaction (p < .05). Our results enable describing patient and partner as an interactional unit in which positive DC supports a satisfying relationship. They imply that strengthening positive DC in a couple facing haematological cancer can contribute to them having a well-functioning and sustaining relationship.

[The Development of Quality Standards for the Psychosocial Outpatient Care of Cancer Patients - Results of a Delphi Survey]. / Die Entwicklung von Qualitätsstandards für die ambulante psychosoziale Krebsberatung ­ Ergebnisse einer Delphibefragung.

BACKGROUND: The psychosocial outpatient care of cancer patients and their families is a central element of oncological care. To date, the provision of care to this group is very heterogeneous in terms of the spectrum of services offered and quality of care. The aim of this study was to develop a multidimensional classification of quality standards for psychosocial outpatient cancer counseling. METHOD: We conducted a study using the Delphi method. 97 experts from more than 10 different fields of action or institutional contexts (e. g. mental health care professionals, cancer societies, self-help groups) were included in 3 rounds of Delphi assessment. Finally, 134 single criteria within 9 quality areas (e. g. staff, range of services, documentation) were generated and evaluated for their relevance, clarity, comprehensiveness and level of obligation. RESULT: A total of 119 individual criteria (88.8%) achieved consensus within the 3 Delphi rounds. Hereof, 94 were basic criteria (79%) and 25 optional criteria (21%). The highest number of individual criteria referred to the service spectrum (26 individual criteria), documentation (21) as well as staff and accessibility (16 each). Fifteen criteria (11.2%) achieved no consensus and were removed. CONCLUSION: For the first time, criteria for assessing the quality of psychosocial outpatient cancer counseling with expert consensus are available, facilitating the evaluation of psychosocial outpatient cancer counseling.

Perceived stigmatization and its impact on quality of life - results from a large register-based study including breast, colon, prostate and lung cancer patients.

BACKGROUND: To date, research on stigmatization among cancer patients and related psychosocial consequences has been scarce and mostly based on small and highly selected samples. We investigated stigmatization and its impact on quality of life among a large sample including four major tumor entities. METHODS: We assessed 858 patients with breast, colon, lung or prostate cancer from two cancer registries. Stigmatization and quality of life (QoL) was assessed with the Social Impact Scale (SIS-D) and the EORTC Quality of Life Questionnaire (European Organization for Research and Treatment of Cancer), respectively. Group effects were analyzed via analyses of variance, relationships were investigated via Pearson's r and stepwise regression analyses. RESULTS: The mean age was 60.7 years, 54% were male. Across cancer sites, the dimensions of stigmatization (isolation, social rejection, financial insecurity and internalized shame) were in the lower and middle range, with the highest values found for isolation. Stigmatization was lowest among prostate cancer patients. Stigmatization predicted all five areas of QoL among breast cancer patients (p < .05), but only affected emotional functioning (p < .01) among lung cancer patients. CONCLUSIONS: We found an inverse relationship between perceived cancer-related stigmatization and various dimensions of QoL, with variation between cancer sites. Breast cancer patients should be focused in individual therapies regarding the negative consequences accompanied by perceived stigmatization.

The relationship between global and specific components of quality of life, assessed with the EORTC QLQ-C30 in a sample of 2019 cancer patients.

Quality of life (QoL) is impaired in many cancer patients. The aim of this study was to test whether detriments in QoL were less pronounced in global assessments of QoL compared to more specific components. A total of 2059 cancer patients with mixed diagnoses were examined 6 months after discharge from a cancer rehabilitation clinic. QoL was measured with the EORTC QLQ-C30, which contains a global QoL scale, and 14 functioning and symptom scales and symptom items. A sample of the general population (n = 4476) served as controls. Regression analyses were performed to calculate expected mean scores for the patients, based on their age and gender distribution. Global QoL in the cancer sample (M = 69.3) was nearly equal to that of the general population, while the mean scores of all functioning scales, symptom scales and symptom items showed markedly worse QoL. This general relationship between global and specific QoL was found for seven of eight cancer types. The results indicate that global QoL is not the sum of its parts. This should be considered when treatment effects on QoL are examined. One alternative is to use higher order summarising functioning and symptom scales.

Predictors of early retirement after cancer rehabilitation-a longitudinal study.

This longitudinal study was designed to assess patients' desire for early retirement and investigate which cancer-related and psychosocial characteristics are associated with early retirement. We assessed 750 cancer patients at the beginning (t0 ) and end (t1 ) of, and 12 months after (t2 ) inpatient cancer rehabilitation. At t0 , 22% had a desire to retire early. These patients reported significantly longer sick leave periods, less favourable workplace environments, lower work ability, higher psychological distress and lower quality of life than other patients. At t2 , 12.5% of patients received temporary or permanent early retirement pensions. Of all patients with a desire for early retirement at t0 , 43% had returned to work at t2 . This subgroup had a significantly lower physical quality of life than other patients returning to work. The most influential predictors of early retirement were being on sick leave (OR = 6.50, 95% CI = 1.97-21.47) and a desire for early retirement (OR = 5.61, 95% CI = 2.73-11.52). Inverse predictors of early retirement were cancer remission (OR = 0.23, 95% CI = 0.10-0.53), perceived productivity (OR = 0.38, 95% CI = 0.18-0.83), work satisfaction (OR = 0.36, 95% CI = 0.17-0.77) and mental quality of life (OR = 0.94, 95% CI = 0.91-0.98). This underlines the need for cancer-specific multi-professional rehabilitation and occupational therapy programmes.

Detrimental social interactions predict loss of dignity among patients with cancer.

PURPOSE: This prospective study aimed to determine the extent to which cancer patients experience loss of dignity during primary cancer care (baseline) and at 3-month follow-up and the contribution of positive social support and detrimental social interactions on loss of dignity at follow-up. METHODS: At baseline, we enrolled N = 270 cancer patients (advanced cancer 57 %) undergoing oncological treatment. At follow-up, n = 178 patients (72 %) participated. Patients completed the following questionnaires: sense of dignity item (SDI), physical problem list of the NCCN Distress Thermometer, Illness-Specific Social Support Scale (SSUK), Patient Health Questionnaire (PHQ-9), and Generalized Anxiety Disorder Questionnaire (GAD-7). We conducted ordinal regression analyses controlling for age, gender, tumor stage, number of physical symptoms, depression, and anxiety. RESULTS: At baseline, 18 % of the patients experienced moderate to extreme loss of dignity (follow-up 23 %, p = 0.27). Detrimental interactions significantly predicted loss of dignity (OR = 1.42, 95 % CI 1.06-1.90) in a model including positive support (OR = 1.10, 95 % CI 0.82-1.49), depression (OR = 1.55, 95 % CI 0.96-2.51), and anxiety (OR = 1.20, 95 % CI 0.83-1.74). Items in relation to detrimental interactions with significant others such as "made you feel like you couldn't take care of yourself" (r = 0.29, p < 0.001) and "felt uncomfortable in illness conversations" (r = 0.24, p = 0.002) showed the highest associations with perceived loss of dignity. CONCLUSION: Loss of dignity was a frequent problem in our mixed cancer patient sample. Detrimental interactions that weaken the sense of dignity may result from discrepancies with patients' needs for autonomy and security. Tailoring social support to attachment-related patient needs may help to conserve patients' sense of dignity.

[Communication Bad News by Physicians: The German Version of the MPP (Measure of Patients' Preferences) Questionnaire to the Communicative Preferences of Cancer Patients]. / Die Mitteilung schlechter Nachrichten durch den Arzt: Die deutsche Version des MPP- (Measure of Patients' Preferences) Fragebogens zu den kommunikativen Präferenzen von Krebspatienten.

OBJECTIVES: Breaking bad news is as one of the most distressing tasks that doctors face with high demands on their communication and psychosocial skills. Patient preferences for communicating bad news influence the course of such consultations. The purpose of this study was to evaluate the psychometric characteristics of the German version of the Measure of Patients' Preferences (MPP), a questionnaire that has been validated in several international studies. METHOD: Statistical analyses were performed in a sample of N=270 cancer patients during early treatment phase (mixed cancer entities, mean age 56.9 years, 46.7% female). In this prospective study with 2 assessment times, the factorial structure of the MPP-D was examined using principal components analysis with varimax rotation. RESULTS: Factor analysis resulted in a 9-factor solution, the 3 factor structure of the original version was not replicated. Cronbachs α was>0.80 for 7 of the MPP-D subscales indicating good to excellent reliability. CONCLUSION: Further psychometric testing and optimisation of the measure is recommended.

[Fear of progression in parents of children with cancer: adaptation of the Fear of Progression Questionnaire and correlates]. / Progredienzangst bei Eltern krebskranker Kinder: Adaptation eines Fragebogens und Korrelate.

BACKGROUND: Fear of Progression (FoP), the fear of further disease progression, is one of the most common psychological strains of chronically ill patients and can also be found in healthy partners of cancer patients. Parents of children with cancer are also at risk of developing distinct fears that may persist after medical treatment. This study aimed to assess FoP in parents of children with cancer and to investigate relationships between FoP in parents of children with cancer and disease- and treatment-related issues, the child's current medical condition and parents' quality of life. PATIENTS: In this study 76 parents (51 mothers, 25 fathers) whose children were in inpatient treatment or follow-up care were surveyed. METHOD: The short form of the FoP Questionnaire was adapted by rephrasing the items for the parental perspective (FoP-Q-SF/PR). RESULTS: The FoP-Q-SF/PR is a short questionnaire with adequate psychometric properties (e. g. Cronbach's α=0.90) and satisfying results in terms of construct validity. Significant correlations with FoP are found for the child's current medical condition (r=0.35), time since diagnosis (r=- 0.30), parents' capacity to cope with disease-related fears (r=- 0.45) and parents' quality of life (r=- 0.55). A cut-off value of 46 points is recommended. CONCLUSION: The FoP-Q-SF/PR offers a feasible and sensitive battery to assess disease-related fears. For clinicians, evaluation of individual results can provide insight into specific problem areas for parents of children with cancer. The questionnaire is thus well suited for use in psychosocial care of families within the field of paediatric oncology.

[Structural and process quality in outpatient psychosocial cancer counselling centres. evaluating a major funding programme of the "Deutsche Krebshilfe e.V."]. / Struktur- und Prozessqualität in ambulanten psychosozialen Krebsberatungsstellen des Förderschwerpunktes "Psychosoziale Krebsberatung" der Deutschen Krebshilfe.

BACKGROUND: In 2007, the German Cancer Aid ("Deutsche Krebshilfe e.V.") initiated and funded a programme in 28 selected cancer counselling centres in Germany attempting to both promote and strengthen quality assured psychosocial cancer counselling as well as to ensure long-term financing. The accompanying evaluation programme aims to collect structural data of the institutions and to evaluate processes of quality assurance within the sample of cancer counselling centres. METHODS: On the basis of structured research within scientific databases and internet, as well as with the support of experts, characteristics of structural quality of cancer counselling centres were identified. Structural data were collected using a self-developed questionnaire and a semi-structured interview during the on-site visitations of the institutions. RESULTS: The results show homogeneity in some fields of structural quality such as individual psycho-oncological and social counselling, human resources, room facilities, quality assurance, diagnostics, documentation and public relations. Structural quality of the investigated centres appears more heterogeneous with regard to aspects such as availability and accessibility, barrier-free access, group support offers (counselling, sports, arts, etc.) as well as cooperation, financing and written mission statements. CONCLUSION: The investigated cancer counselling centres ensure mainly good minimum standards according to structural quality of cancer counselling. There is potential for further optimisation including cooperation, quality assurance, room facilities and being differentiated in terms of conceptual content and working concepts. Further achievements on quality assured cancer counselling can use the presented data as a basis for describing minimum standards and obligatory quality criteria.

[Assessment of Work Engagement in Patients with Hematological Malignancies: Psychometric Properties of the German Version of the Utrecht Work Engagement Scale 9 (UWES-9)]. / Erfassung von Arbeitsengagement bei Patienten mit hämatologischen Malignomen: Die psychometrischen Eigenschaften der deutschen Version der Utrecht Work Engagement Scale 9 (UWES-9).

OBJECTIVE: Our purpose was the psychometric evaluation of the German version of the Utrecht Work Engagement Scale-9 (UWES-9), a self-assessment tool measuring work-related resources consisting of 9 items. METHODS: Based on a sample of 179 patients with hematological malignancies in in-patient and rehabilitative oncological settings, we tested the dimensional structure by confirmatory and explorative factor analysis. We further evaluated reliability, item characteristics, and construct validity of the UWES-9. RESULTS: The confirmatory factor analysis showed acceptable fit for both a 1-dimensional factor structure and the original 3-factor model. Based on an explorative principal component analysis, we were able to replicate the 1-dimensional factor accounting for 67% of the total variance and showing very high internal consistency (α=0.94) and high factor loads (0.73-0.88). The construct validity was further supported by significant positive correlations between work engagement and meaning of work, corporate feeling, commitment to the workplace, and job satisfaction. CONCLUSION: The German version of the UWES-9 shows good psychometric qualities in measuring dedication to work in patients with hematological malignancies in in-patient and rehabilitative oncological settings.

[Health services research in psycho-oncology]. / Psychoonkologische Versorgungsforschung.

Given the increasing incidence of cancer and improved diagnostics and cancer treatments, the number of cancer patients in industrialized nations is increasing worldwide. Multimodal treatment regimens, which contribute to a tumor-free survival or extend patients life expectancy can, however, alone or in combination increase the risk of physical and psychosocial long-term problems or late complications. For many patients cancer has become a chronic disease and is associated with significant physical and psychosocial problems that affect the quality of life in the medium and longer-term perspective. Common problems of cancer patients in the longer course of the disease include chronic and post-cancer pain, cancer-specific fatigue, psychosocial distress and impairment in self-management and activities of daily living, work participation and quality of life. Current developments with respect to both curative and palliative oncological care have various implications for health services research in psycho-oncology. These questions relate to issues of care needs, service provision and the appropriateness of care, issues of development, implementation and scientific evaluation of patient-centered and affordable support programs for different groups of cancer patients with different supportive care needs, issues of access and utilization of supportive care services, as well as questions of appropriate outcome criteria of health services research.

Participation in patient support groups among cancer survivors: do psychosocial and medical factors have an impact?

A better understanding of the role of psychosocial resources and factors associated with participating in patient support groups appears to be important for the development and implementation of cancer survivorship care plans. We therefore investigated the frequency of participation in and satisfaction with patient support groups after completion of a rehabilitation programme and aimed to examine differences in demographic, medical and psychosocial characteristics between group participants and non-participants. We further aimed to identify predictors of participation in patient support groups. A total of 1281 eligible patients (75.5% participation rate) were recruited on average 11 months post diagnosis and assessed at the beginning (t1 ), at the end (t2 ) and 12 months after rehabilitation (t3 ). Study participants completed self-report measures assessing support-group participation and satisfaction, psychosocial distress (anxiety, fear of cancer recurrence, depression), social support, coping, quality of life, pain and treatment-related characteristics. Sixty-seven patients (7.6%) participated in a patient self-help group. Being unemployed, undergoing an increased number of overall treatments, and a higher active emotion-oriented coping style significantly predicted self-help group participation; the predictive power of the multivariate logistic regression model was rather weak (Nagelkerke's R(2) = 0.07). Our data provide evidence that self-help group participation in cancer patients may be largely related to other factors than medical or psychosocial distress.

Exploring spiritual needs and their associated factors in an urban sample of early and advanced cancer patients.

Although it is widely recognised that people turn to spirituality in times of crises, the interest in exploring the spiritual needs of cancer patients is just beginning to grow. The purpose of this study was to conduct a spiritual needs assessment with cancer patients living in a Northern European metropolitan region in order to (a) examine the relevance and nature of spiritual needs; (b) to clarify the role of demographic and clinical characteristics in spiritual needs; and (c) to identify their associations with dimensions of psychological distress. N = 285 outpatients with mixed cancer sites and of all tumour stages were surveyed cross-sectionally. Instruments included the Spiritual Needs Questionnaire (SpNQ) and measures of anxiety, distress, hopelessness and meaning-related life attitudes. Almost all patients (94%) reported at least one spiritual need. The needs for Inner Peace and Actively Giving emerged to be of greatest importance. Significant, but weak differences were found for age, gender and being in a partnership. No associations for medical characteristics were observed. Regression analyses revealed anxiety as the strongest predictor for the subscales Existential Needs, Inner Peace and Actively Giving. The results emphasise the relevance of spiritual needs in cancer patients. The call for spiritual assessment and interventions to meet spiritual needs in cancer patients is strengthened.

Sources of meaning in cancer patients - influences on global meaning, anxiety and depression in a longitudinal study.

Although existential needs are highly prevalent in patients with cancer, specific sources of meaning have been little explored. We investigated whether specific sources of meaning predict global meaning and psychological distress. N = 258 patients with breast (45%), lung (39%) and gynaecological cancer (16%) completed a battery of validated questionnaires at T1. Six months later (T2), n = 183 (78%) patients participated again. The primary outcomes - sources of meaning, global meaning and psychosocial distress - were measured with the Sources of Meaning Profile-Revised (SOMP-R), Life Attitude Profile-Revised (LAP-R) and modules for depression and anxiety of the Patient Health Questionnaire (PHQ-9, GAD-7). Most important sources of meaning were 'engaging in personal relationships', 'preserving human values and ideals' and 'feeling financially secure'. Stepwise multivariate regression analyses controlling for demographic and medical factors revealed that 'engaging in personal relationships', 'preservation of culture and tradition' and 'interest in social and/or political causes' predicted lower depression. 'Leaving a legacy for the next generation' and 'feeling financially secure' predicted both higher depression and anxiety. The findings highlight the relevance of sources of meaning for the psychological well-being of cancer patients and point towards specific sources of meaning that should be focused in psychosocial interventions.

[Vocational rehabilitation after total laryngectomy]. / Berufliche Rehabilitation nach Laryngektomie.

BACKGROUND: Aim of this study was to find out how many patients after a total laryngectomy (TLE) return to work successfully and what factors support vocational rehabilitation. PATIENTS AND METHODS: Laryngectomees (n=231) aged up to 60 years completed questionnaires and structured interviews before TLE (t1), before rehabilitation (t2), at the end of rehabilitation (t3), 1 year after TLE (t4), 2 years after TLE (t5), and 3 years after TLE (t6). RESULTS: Prior to TLE, 38% of all respondents were employed, 34% were unemployed, 23% received disability-related and 3% age-related pension retirement. One year after TLE, 13% were employed, 15% 2 years and 14% 3 years after TLE. Unemployed were 10% (t4), 5% (t5), and 7% (t6) of the patients. For 59% of all respondents it was very important to have a job. Predictors of successful vocational rehabilitation were employment prior to TLE, age <50 years, being self-employed or clerical employee, good physical functioning, good speech intelligibility, high motivation to go back to work, and support from colleagues. CONCLUSION: Only few laryngectomees return to work. However, even before TLE only a third of the patients was employed, another third was unemployed. Most of the patients receive pension retirement after TLE. As return to work is important for many patients, patient consultations should consider possibilities to support vocational rehabilitation before offering to apply for retirement.

Correlation between retinal vein pulse amplitude, estimated intracranial pressure, and postural change.

Spaceflight associated neuro-ocular syndrome (SANS) is common amongst astronauts on long duration space missions and is associated with signs consistent with elevated cerebrospinal fluid (CSF) pressure. Additionally, CSF pressure has been found to be elevated in a significant proportion of astronauts in whom lumbar puncture was performed after successful mission completion. We have developed a retinal photoplethysmographic technique to measure retinal vein pulsation amplitudes. This technique has enabled the development of a non-invasive CSF pressure measurement apparatus. We tested the system on healthy volunteers in the sitting and supine posture to mimic the range of tilt table extremes and estimated the induced CSF pressure change using measurements from the CSF hydrostatic indifferent point. We found a significant relationship between pulsation amplitude change and estimated CSF pressure change (p < 0.0001) across a range from 2.7 to 7.1 mmHg. The increase in pulse amplitude was highest in the sitting posture with greater estimated CSF pressure increase (p < 0.0001), in keeping with physiologically predicted CSF pressure response. This technique may be useful for non-invasive measurement of CSF pressure fluctuations during long-term space voyages.