Sexual Disorders and Quality of Life in Parkinson's Disease

Factors associated with self-rated health in people with late-stage parkinson's and cognitive impairment

PURPOSE

To investigate the contributors to self-rated health in people with late-stage Parkinson's disease (PD) and cognitive impairment.

METHODS

A secondary analysis of baseline data from the international Care of Late-Stage Parkinsonism (CLaSP) cohort study was conducted. Participants with PD and either dementia or mild cognitive impairment or MMSE < 24/30 in the absence of major depression were included if they had completed the EQ-5D-3L assessment (n = 277). Factors associated with self-rated health (EQ-5D-3L Index and Visual Analogue Scale) were investigated through multivariable linear regression.

RESULTS

More severe PD (motor and non-motor) was associated with worse self-rated health. The EQ-5D-3L dimensions of Mobility, Self-Care and Usual Activities were almost universally affected; the latter two particularly severely. Being unable to perform usual activities or having moderate to extreme anxiety or depression were significantly associated with EQ-5D-3L Visual Analogue Scale, suggesting these are particularly valued. Worse motor impairment and function and the non-motor symptom domains of mood, perception, sexual function, and miscellaneous (e.g., pain) were associated with worse self-rated health, whereas greater burden of gastrointestinal symptoms was associated with better self-rated health in multivariate analysis. Better self-rated health was associated with recent PD nurse consultation, and higher doses of dopaminergic medication.

CONCLUSION

Improvement of activities of daily living, mood and anxiety should be prioritised in clinical practice, with consideration of perception and sexual function in this population. Recent nurse consultations and higher antiparkinsonian doses are associated with better self-rated health, suggesting there is no room for a therapeutic nihilism in this population of people within a complex phase of PD.

Sexual dysfunction and commonly used drugs in neurology

Sexual dysfunction is common in men and women with neurological diseases. Medications used in neurology can cause sexual dysfunction independently of the disease process and this may adversely affect patients' quality of life. This review focuses on medications commonly prescribed to neurological patients that may contribute to altered sexual function, and discusses how they may differ in men and women.

Development of a Screening Tool for Assessing Sexual Difficulties Among Patients with Parkinson's Disease: The PD-SDS

Background

People with Parkinson's disease (PwPD) exhibit various sexual difficulties (SDs) that may be due to motor and/or nonmotor symptoms or the use of antiparkinsonian medication. SDs are often underreported by PwPD and underexplored by physicians.

Objective

This study aimed to explore the SDs experienced by PwPD and create a scale for assessing them.

Methods

A corpus of items was generated from semistructured interviews to represent the experience of PwPD as closely as possible. The number of items was reduced according to the psychometric properties, and the scale's structure was subsequently examined. The final phase consisted of measuring the scale's validity and reliability.

Results

After assessment of the original corpus of 59 items by PwPD and clinicians, a 25-item version was obtained. The analysis of item properties led to the removal of fifteen items. An exploratory factor analysis of the first 10-item version with a first PwPD sample identified four components of the SDs among PwPD: "low sexual esteem," "sexual displeasure," "impact on sexual position" and "hypersexuality." With a second PwPD sample, a confirmatory factor analysis demonstrated a satisfactory fit between the model with four components and the data. The 10-item scale had good internal consistency and good temporal reliability.

Conclusions

The Parkinson's Disease Sexual Difficulties Scale (PD-SDS) is a valid screening tool that facilitates the investigation of and communication about PD-related SDs. It is intended to improve the identification of vulnerable PwPD and to target the domain of sexual experience impacted by PD to better support PwPD.

Non-Motor Symptom Management: Insights into Adherence to Treatment Guidelines in Parkinson's Disease Patients

Background

Non-motor symptoms (NMS) reduce quality of life in Parkinson's disease (PD) patients, who experience three times more NMS than individuals without PD. While there are international and national NMS treatment guidelines, their implication in clinical practice remains unclear.

Objective

This study aimed to investigate the adherence to pharmacological NMS treatment guidelines in patients with mild to moderately severe PD.

Methods

220 PD patients with ≥1 NMS based on the Non-Motor Symptom Questionnaire and a Hoehn and Yahr stage ≤4 were randomly selected from the Swedish Parkinson registry and screened for inclusion. NMS were evaluated using the International Parkinson and Movement Disorder Society-Non-Motor Rating Scale (MDS-NMS), Parkinson's Disease Sleep Scale 2, Epworth Sleepiness Scale, and Hospital Anxiety and Depression Scale. Treatment was compared with Swedish national guidelines and international guidelines from the MDS Evidence-Based Medicine Committee.

Results

Among 165 included patients, the median number of NMS was 14, and in median 7 symptoms were estimated to require treatment. The most common NMS requiring treatment were pain (69%) and urinary problems (56%). Treatment of depression and constipation demonstrated the highest adherence to guidelines (79% and 77%), while dysphagia and excessive daytime sleepiness exhibited the lowest adherence (0% and 4%). On average, only 32% of NMS were treated in accordance with guidelines.

Conclusions

Adherence to pharmacological guidelines for NMS in patients with mild to severe PD was low. This study highlights the need for improved evaluation and treatment of NMS to enhance symptom management and quality of life among PD patients.

Stemming the Tide: The Proactive Role of Allied Health Therapy in Parkinson's Disease

Motor and nonmotor symptoms occur in early Parkinson's disease (PD), or even in the prodromal stage. Many of these symptoms can be addressed by allied health therapies, including physical therapy, occupational therapy, speech therapy, and psychological therapies. However, referrals to these services early in the disease are low. We provide a review summarizing the efficacy of proactive allied health interventions on motor and nonmotor symptoms and daily function in prodromal and early disease. We also highlight areas for additional research and provide recommendations to improve care for individuals with early PD within each discipline. We recognize the overlapping roles of the allied health disciplines and support integrated or transdisciplinary care beginning soon after diagnosis to help stem the tide in the progression of PD symptoms and disability.

Setting the clinical context to non-motor symptoms reflected by Park-pain, Park-sleep, and Park-autonomic subtypes of Parkinson's disease

Non-motor symptoms (NMS) of Parkinson's disease (PD) are well described in both clinical practice and the literature, enabling their management and enhancing our understanding of PD. NMS can dominate the clinical pictures and NMS subtypes have recently been proposed, initially based on clinical observations, and later confirmed in data driven analyses of large datasets and in biomarker-based studies. In this chapter, we provide an update on what is known about three common subtypes of NMS in PD. The pain (Park-pain), sleep dysfunction (Park-sleep), and autonomic dysfunction (Park-autonomic), providing an overview of their individual classification, clinical manifestation, pathophysiology, diagnosis, and potential treatments.

A Comparative Study of Dialectical Behavior Therapy and Aripiprazole on Marital Instability of in Patients with Hypersexual

Background

Sexual desire and sexual activity are natural needs of human beings, which can be problematic and lead to various sexual disorders, if not used in the right way, including hypersexuality. The present study aimed to compare the effect of dialectical behavior therapy (DBT) and aripiprazole drug on marital instability in patients with hypersexuality.

Materials and Methods

This experimental case--control Pretest--Posttest Control Group Design with follow up was done on 27 male and female patients with hypersexuality having at least a higher education degree selected from four hospitals and psychiatric centers including Khorshid Hospital, Asgariyeh Specialized Hospital, Farhangian Clinic and Imam Reza Medical Center in Isfahan and were randomly assigned to two groups of treatment (nine patients in every group) and one group of control (nine patients) after adjusting the age and gender. Pretest phase was done for both three groups using Marital Instability Index (MII). The first treatment group underwent DBT intervention for eight sessions of 2 hours (once a week), and the second experimental group was prescribed aripiprazole for 2 months. Afterwards, the posttest and follow-up were performed for all the three groups. The data were analyzed using SPSS 24 and multivariate analysis of covariance (MANCOVA).

Results

The findings showed that DBT and aripiprazole had little effect on the problem of marital instability in patients with hypersexuality (p > 0.05); also, there was no significant difference between the effect of DBT and aripiprazole (p > 0.05).

Conclusion

DBT and the drug aripiprazole cannot have a significant effect on the marital instability in patients.

Sexual Dysfunctions in Females with Parkinson's Disease: A Cross-Sectional Study with a Psycho-Endocrinological Perspective

Background and Objectives: Normal human sexual functioning is a complex integration of an intact neuroanatomic substrate, vascular supply, a balanced hormonal profile, and a predominance of excitatory over inhibitory psychological mechanisms. However, sexual functioning in Parkinson's disease (PD) is often overlooked in clinical practice, especially in female patients. Materials and Methods: In this cross-sectional study, we have investigated the frequency of sexual dysfunction and the possible correlation with psycho-endocrinological factors in a sample of women with idiopathic PD. Patients were assessed using a semi-structured sexual interview, in addition to psychometric tools, including the Hamilton Rating Scale for Anxiety and for Depression and the Coping Orientation to the Problems Experiences-New Italian Version. Specific blood tests, including testosterone, follicle-stimulating hormone (FSH), luteinizing hormone (LH), estrogen E2, prolactin (PRL), and vitamin D3 were also evaluated. Results: Our results reported a statistical difference in sexual intercourse frequency before and after the onset of PD (p < 0.001). The percentage of women who complained about reduced sexual desire increased after diagnosis (52.7%) compared to the period before the onset of the illness (36.8%). The endocrinological profile in females with PD revealed statistically significant differences regarding testosterone (p < 0.0006), estradiol (p < 0.00), vitamin D3 (p < 0.006), and calcium (0.002). Depression (44% characterized by perceived feelings of anger and frustration during sexual intercourse) and anxiety symptoms (29.5% reported feelings of fear and anxiety for not satisfying the partner) with abnormal coping strategies (48.14% experienced feelings of anger and intolerance) were also found to be statistically significant. This study showed a high frequency of sexual dysfunction in female patients with PD, which correlated with sexual hormone abnormalities, mood/anxiety, and coping strategies alterations. This supports the idea that there is a need to better investigate the sexual function of female patients with PD to provide them with an adequate therapeutic approach and potentially improve quality of life.

A circuit-based approach to modulate hypersexuality in Parkinson's disease

AIM

Impulse-control disorder is a common neuropsychiatric complication in Parkinson's disease (PD) under dopamine replacement therapy. Prior studies tested the balance between enhanced desire towards reward and cognitive control deficits, hypothesized to be biased towards the former in impulse control disorders. We provide evidence for this hypothesis by measuring behavioral and neural patterns behind the influence of sexual desire over response inhibition and tools towards functional restoration using repetitive transcranial stimulation in patients with hypersexuality as predominant impulsive disorder.

METHODS

The effect of sexual cues on inhibition was measured with a novel erotic stop-signal task under on and off dopaminergic medication. Task-related functional and anatomical connectivity models were estimated in 16 hypersexual and 17 nonhypersexual patients with PD as well as in 17 healthy controls. Additionally, excitatory neuromodulation using intermittent theta-burst stimulation (sham-controlled) was applied over the pre-supplementary motor area in 20 additional hypersexual patients with PD aiming to improve response inhibition.

RESULTS

Compared with their nonhypersexual peers, patients with hypersexuality recruited caudate, pre-supplementary motor area, ventral tegmental area, and anterior cingulate cortex while on medication. Reduced connectivity was found between pre-supplementary motor area and caudate nucleus in hypersexual compared with nonhypersexual patients (while medicated), a result paralleled by compensatory enhanced anatomical connectivity. Furthermore, stimulation over the pre-supplementary motor area improved response inhibition in hypersexual patients with PD when exposed to sexual cues.

CONCLUSION

This study, therefore, has identified a specific fronto-striatal and mesolimbic circuitry underlying uncontrolled sexual responses in medicated patients with PD where cortical neuromodulation halts its expression.

Sexual needs and sexual function of patients with Parkinson's disease

BACKGROUND

Sexual dysfunction (SD) is a frequent non-motor symptom in Parkinson's disease (PD) that is rarely addressed, and sexual counseling is sporadic.

OBJECTIVES

To investigate PD patients' SD and sexual counseling motivation and to propose an interventional strategy for movement disorder specialists.

METHODS

All consecutive PD patients who presented to a movement disorder unit between 2018 and 2019 completed anonymous questionnaires containing the Female Sexual Function Index, the International Index of Erectile Function, and a questionnaire on sexual needs and motivation to receive sexual counseling.

RESULTS

The age range of the 100 recruited patients (78 men) was 40-80 years, and the mean disease duration was 8.64 ± 6.84 years. SD appeared at all PD stages. The presence of SD pre-PD diagnosis significantly predicted SD post-diagnosis in men. Erectile dysfunction was the most common male SD (70%). Women reported frequent SD before PD diagnosis and currently. More than half of the responders (74% of the men and 40% of the women) were motivated to receive sexual counseling. Most of them (77.4%) were in a relationship.

CONCLUSIONS

The findings of this analysis revealed that most PD patients had experienced SD before being diagnosed with PD and were interested in receiving sexual counseling. We propose a six-step intervention strategy for the management of SD in PD designed for application in a movement disorder unit. We also recommend that neurologists and other healthcare providers undergo training to provide basic sexual counseling tailored to the needs of PD patients.

Discussing sexual health among Flemish patients with Parkinson’s disease

PURPOSE

Parkinson's disease (PD) can lead to sexual dysfunction. Yet, studies have shown that neurologists do not often discuss possible sexual health consequences with their patients. Thus, in this study, we investigated the communication on sexual health between healthcare workers and PD patients in Flanders, Belgium.

METHODS

Through an online survey, PD patients were contacted. Sexual dysfunction was measured with the Arizona Sexual Experience Scale (ASEX), stage of PD with the Hoehn and Yahr scale, and self-made questions on the communication between healthcare workers and PD patients.

RESULTS

In total, 100 PD patients responded, of which 23% had possible sexual dysfunction. Of these respondents, 60% had never received any information about possible sexual health consequences. More than half (58%) of the patients felt their neurologist should provide information on possible sexual health consequences, though only 14% had ever received information from their neurologist. Male respondents expressed a greater need for information than female respondents (p = .049), although no difference between both groups in receiving information was found (p = .294). In addition, low to middle educated people generally received more information than higher educated people (p = .018).. The more severe the disease is, as measured by the Hoehn and Yahr scale, the more information a patient receives (p = .012). The most frequently mentioned barriers in discussing sexual health are a lack of initiative by the neurologist (41%) and awkwardness to discuss sexuality (41%).

CONCLUSION

This study showed that PD patients expect information from neurologists on possible sexual health consequences, but seldom receive information. More attention should be given to training neurologists in discussing sexual health. Table 1 Characteristics of the sample (N = 100) N % Gender  Male 59 59  Female 41 41 Education level  Lower 4 4  Middle 42 42  Higher 54 54 Relationship status  No partner 10 10  Partner 90 90 Stage of Parkinson (Hoehn & Yahr scale)  Stage 0 3 3  Stage 1 36 36  Stage 1.5 12 12  Stage 2 9 9  Stage 2.5 6 6  Stage 3 21 21  Stage 4 9 9  Stage 5 4 4 Time since diagnosis  Less than 1 years ago 10 10  1-2 years 13 13  2-5 years 32 32  5-10 years 29 29  Longer than 20 years 13 13  10-15 years 2 2  15-20 years 1 1 Received information on sexual health consequences from…  Treating neurologist 14 14  GP 9 9  Geriater 0 0  Nurses 2 2  Psychotherapist 3 3  Sexuologist 1 1  Kinesitherapist 2 2  Other 4 4 Who do you think should provide you information on sexual health consequences  Treating neurologist 58 58  GP 43 43  Geriater 3 3  Nurses 6 6  Psychotherapist 23 23  Sexuologist 17 17  Kinesitherapist 3 3  Other 2 2 How would you like to receive information on possible sexual health consequences?  Brochure 38 38  Online (e.g. website) 38 38  Posters in waiting room 3 3  Personal conversation with healthcare worker 51 51  Other 1 1 From what moment do you think possible sexual health consequences of Parkinson's disease should be discussed?  From the moment of diagnosis 52 52  From moment patient indicates he/she experiences problems 33 33  From moment that the neurologist feels it should be discussed 9 9  Should not be discussed 6 6 Need for information on possible sexual health consequences  No need 31 31  A little need 19 19  Some need 21 21  Need 24 24  A lot of need 5 5 How often has healthcare personnel given you information on sexual health consequences  Never 60 60  Seldom 25 25  Sometimes 12 12  Regularly 3 3  At every consultation 0 0 ASEX  No possible sexual dysfunction 77 77  Possible Sexual dysfunction (score equal to or higher than 19) 23 23 How important are sexual activities for you?  Not important 20 20  Slightly important 33 33  Somewhat important 22 22  Important 18 18  Very important 7 7 I avoid sexual contact because of my disease  Agree completely 8 8  Agree 16 16  Agree somewhat 30 30  Disagree 28 28  Completely disagree 18 18 I feel unsatisfied with my sex life due to my disease  Agree completely 16 16  Agree 22 22  Agree somewhat 32 32  Disagree 20 20  Completely disagree 10 10 Mean Standard deviation Age 66.97 8.88 ASEX 16.02 4.53 Table 2 Associations of ASEX, need for information, receiving information ASEX p Need for information p Receiving information p Gender  Male 16.08 0.948 55.31 0.049 48.69 0.294  Female 16.11 44.13 43.38 Education level  Low-middle 15.83 0.068 53.26 0.356 53.41 0.018  High 16.20 48.06 41.49 Need for information and receiving information scores are mean ranks due to non-parametric tests ASEX scores are means Table 3 Correlations between variables ASEX Age Need for information Receiving information Hoehn and Yahr Importance of sex life Avoiding sex Unsatisfied with sex life ASEX -  - 0.04 0.27* 0.07  - 0.09  - 0.12  - 0.10  - 0.23* Age -  - 0.20 0.10 0.41***  - 0.28**  - 0.16 0.08 Need for information - 0.14  - 0.11 0.38***  - 0.13  - 0.46*** Receiving information - 0.22*  - 0.03  - 0.08  - 0.08 Hoehn and Yahr -  - 0.17  - 0.32**  - 0.17 Importance of sex life - 0.24*  - 0.07 Avoiding sex - 0.48*** Unsatisfied with sex life - ^*p < .05 ^**p < .01 ^***p < .001 Table 4 Regression analyses B (S.E.) Exp(B) P Pseudo R² Nagelkerke Pseudo R² Cox & Snell Need for information 0.013 0.19 0.14  Gender  - 1.23 (0.48) 0.29 0.010  Education level  - 0.62 (0.43) 0.54 0.149  Hoehn and Yahr 0.01 (0.11) 1.01 0.925  ASEX 0.10 (0.06) 1.11 0.060 Receiving information 0.047 0.14 0.11  Gender  - 0.53 (0.45) 0.59 0.232  Education level  - 0.61 (0.41) 0.54 0.137  Hoehn and Yahr 0.29 (0.14) 1.33 0.012  ASEX 0.01 (0.05) 1.01 0.788 Table 5 Barriers to discuss sexual health % (that agree with statements) I do not feel comfortable to discuss sexuality with my neurologist 33 I wait until the neurologist begins discussing it 41 My neurologist is either too young or too old 11 My neurologist is of the other gender 26 Reasons that have to do with my faith or attitude towards sexuality 12 I do not have the feeling there is a solution for these problems (with sexual health) 31 My Parkinson related symptoms overshadow my possible sexual health problems 39 It feels awkward to discuss sexual acts like masturbation or discuss buying of sexual aiding tools 41 My family/partner/friends are present during consultation 37 Reasons that have to do with my sexual orientation 11.

Gastrointestinal Dysfunction Impact on Life Quality in a Cohort of Russian Patients with Parkinson’s Disease I-III H&Y Stage

Background

There are still no clearly proven methods to slow down or stop the progression of Parkinson's disease (PD). Thus, improving the quality of life (QoL) of patients with PD becomes of primary importance. Autonomic dysfunction and its symptoms are known to worsen the quality of life in PD, but the degree of this influence is underinvestigated. Particularly, impacts of the separate significant gastrointestinal symptoms, such as dyspepsia, constipation, and abdominal pain, in PD should be more precisely evaluated with the help of specific scales.

Objective

To assess the impacts of gastrointestinal dysfunction and its symptoms on PD patient's QoL using PDQ-39.

Methods

111 PD patients in the I-III Hoehn and Yahr (H&Y) stage were enrolled in the study. The following scales were applied: UPDRS III, PDQ-39, GSRS, GDSS, MMSE, BDI, STAI-S, and STAI-T.

Results

The linear regression model showed that the PDQ-39 SI depended on summary assessments GSRS-SI (β = 0.333, p < 0.001), BDI (β = 0.463, p < 0.001), and UPDRS III (β = 0.163, p < 0.05). The use of the stepwise method, adding GSRS-SI and UPDRS III scores to the BDI predictor, improved the model (R2 increased from 0.454 to 0.574). The investigation of GSRS domain's influence revealed that PDQ-39 SI had a significant correlation with almost all of them, but the regression analysis showed significant QoL impacts of only two factors: constipation and abdominal pain (β = 0.288, p < 0.01 and β = 0.243, p < 0.05 accordingly).

Conclusions

Our results suggest a considerable negative influence of depression and gastrointestinal dysfunction (especially constipation and abdominal pain) on QoL of patients with PD. Their impact on QoL in patients with I-III H&Y stages of PD is more significant than that of motor symptoms. Therefore, the correction of depression and gastrointestinal dysfunction should be prioritized in PD therapy.

The impact of nonmotor symptom burden on sexual function

Sexual dysfunction (SD) is defined as a combination of reduction in libido, and problems with a person's ability to have sex. It is a frequent but neglected and poorly recognized nonmotor symptom (NMS) in Parkinson's disease (PD) which correlates with reduced quality of life (QoL). Hypersexuality forms another spectrum of SD and is an impulse control disorder (ICD) of behavior, which also affects the sexual desires of people with Parkinson's (PwP) and impacts their partner, family, and QoL. NMS occur in various forms and represents a range of symptoms, from cognitive dysfunction to pain and SD, and this chapter explores the relationship of comorbid NMS with SD and also how NMS, motor symptoms, and hypersexuality experienced by patients may impact sexual function in people with Parkinson's (PwP).

Impulse control disorders, dopamine dysregulation syndrome and sex dysfunction in Parkinson's disease

Hypersexuality (HS), characterized by an aberrant, compulsive and inappropriate sexual drive, is an underreported and undermanaged complication of the treatment with dopamine agonists in patients with Parkinson's disease (PD). HS is part of the spectrum of impulse control disorders (ICDs). The failure to control these addictive behaviors is distressing for the patient and it is associated with important consequences. Reports of the prevalence of HS showed different results, due to the lack of standardized diagnostic criteria, but also due to the embarrassment or guilt feelings that patients experience regarding their sexual behaviors. Overall, it is considered that HS may occur in 1.92-22.8% of PD patients and the main risk factors involved could be male sex and genetic susceptibility. The pathophysiology of HS is unknown, but several degenerative mechanisms were proposed, involving dopaminergic, serotoninergic and noradrenergic pathways in cerebral regions responsive for planning and rewarding. There are no standardized tools for the assessment of HS in PD patients; however, several scales and questionnaires were developed with the aim of screening and rating the severity of ICDs, including HS. The management of HS is challenging. Discontinuation or reducing the dopaminergic treatment was effective in some cases, but it might lead to worsening of the motor function. A multidisciplinary approach is mandatory to manage the other associated aspects, such as psychological and social consequences of HS.

The pathophysiology of sexual dysfunction in Parkinson's disease: An overview

Sexual dysfunction is a common, poorly recognized, poorly discussed (often because of cultural perceptions and sensitivities), bothersome and neglected aspect of the range of non-motor symptoms of Parkinson's disease (PD). The spectrum of sexual dysfunction in PD ranges from hyposexuality-based disturbances to hypersexuality-dominated behaviors in the context of drug-induced impulse control disorder. The pathophysiological mechanisms underlying PD-related sexual dysfunction, specifically for hyposexual disorders, are thus heterogeneous and still not fully understood. However, central and peripheral neural mechanisms secondary to the hallmark pathological alterations of the disease (alpha-synuclein deposition and nigrostriatal degeneration) and to the associated network and neurotransmitter dysfunctions, together with the effects of dopaminergic therapies, seem to play an important role in the development of sexual disturbances. In this chapter, we therefore review the neuroanatomical and neurophysiological basis of sexual function in humans, and we provide insights on the pathophysiological mechanisms of hyposexuality and hypersexuality in PD.

Sexual Dysfunctions in Parkinson’s Disease and Their Influence on Partnership—Data of the PRISM Study

Background: Sexual dysfunctions (SD) are common but underreported in Parkinson’s disease (PD) and have negative impacts on the quality of life (QoL) and partnership. Methods: We analyzed the data set from the PRISM study for demographics of SD and their influence on quality of life and partnership. Results: 449/861 (52.1%) PD patients reported SD, with male patients being affected more often and having a longer course of disease. The most common SD in men was erectile dysfunction (ED) (n = 152), while women’s most frequent complaints were orgasm dysfunction (n = 84) and reduced libido (n = 81). Hypersexual SDs were reported significantly more often by men. Spousal caregivers of patients reporting inability to relax and enjoy sex and reduced libido indicated a negative influence on the relationship in general. Negative effects on the sexual relationship were reported significantly more often for patients with ED, difficulties with sexual arousal, inability to relax and enjoy sex, and reduced libido. Hypersexual dysfunctions showed no effect on the relationship. Conclusion: SD is a common but underreported problem in the treatment of patients with PD. Due to the negative influence on the relationship and QoL of patients and caregivers, SD should be assessed routinely.

Case Report: De Clerambault's Syndrome in Dementia With Lewy Bodies

Background: Erotomania, also known as de Clerambault's syndrome, is characterized by the delusion that a person has fallen in love with the patient. It occasionally appears secondary to psychiatric disorders and organic brain diseases. However, there have been no reports on cases secondary to dementia with Lewy bodies (DLB). Case Presentation: The patient was an 83-year-old woman who lived alone. Mild cognitive impairment appeared at the age of 82 years. Soon after, she had the delusional conviction that her family doctor was in love with her. Her symptoms, such as gradually progressive cognitive impairment, cognitive fluctuations, and parkinsonism, indicated DLB. She was treated with a small dose of antipsychotic agents. Conclusions: This case report suggests the possibility of de Clerambault's syndrome during the early stages of DLB. Further investigations are required to clarify the mechanism and treatment of de Clerambault's syndrome in patients with DLB.