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Experience of a tertiary-level urology center in the clinical urological events of rare and very rare incidence. III. Psychourological events: 2. Phobia of renal failure due to loin pain

Abstract

Background

End-stage renal disease and loin pain are prevalent nephrourological topics with unfavorable reputations among populations. We aimed to present our center’s experience with the cases of phobia of renal failure in relation to loin pain.

Methods

It is a retrospective study of phobia of renal failure among the patients who presented with loin pain to our center between July 1991 and June 2017. Description of perception of renal failure risk was guided by the modified Common Sense Model of Illness Representation.

Results

Of more than 64, 000 patients who presented with loin pain, only 78 patients (0.12%) had phobia of renal failure. Mean age ± SD (Range) was 41.12 ± 9.58 (23–60) years. Sixty-four patients (82.1%) expressed directly fear of renal failure. Physical examination and investigations revealed no risks of renal failure in all patients. High percentages of phobia of renal failure were associated with the female gender (73.1%), the presence of a relative patient with renal failure (83.3%), and low socioeconomic levels: education (89.7%), residential (75.6%), and economic status (88.5%) levels. The modified Common Sense Model of Illness Representation revealed predominant emotional representations and unreal cognitive domains with altered perception of renal failure risk.

Conclusions

Phobia of renal failure is very rare. It is a consequence of the altered perception of risk of renal failure due to unconscious attribution of loin pain to renal failure. Female gender, the presence of a relative with renal failure, and low socioeconomic levels could be suggested as risk factors for phobia of renal failure.

Background

Phobia is one of the common anxiety disorders which has different types and mechanisms. It comes from Greek terms and means irrational fear from a certain object or situation. This fear is not shared by the consensual surroundings, and it is out of proportion to the actual danger [1, 2]. It could be encountered in the clinical practice due to an individual’s altered perception of a certain disease risk such as cancer or organ failure, where it is known as disease phobia or nosophobia. The latter is defined as persistent, unjustified, and unresolved fear of having a certain disease, despite the free medical examinations and reassurances [3]. Specifically, fear of kidney disease or albuminurophobia is defined as excessive fear of increased albumin in urine or certain symptoms related to kidney diseases [1]. On one hand, loin pain is a cardinal complaint in the urological clinics as an upper urinary tract symptom. It has a multi-factorial etiology with significant non-urological contributors and differentials. The urological causes are mainly disorders of the kidneys and ureters such as urolithiasis [4,5,6]. On the other hand, chronic kidney disease (CKD), including the end-stage renal disease (ESRD), is an increasing worldwide problem [7, 8], may be accompanied by renal pain, and comes on top of the kidney disorders which may have an altered perception of risk among certain populations [9, 10]. Accordingly, public awareness of the pathological and anatomical contexts of loin pain to the kidney and the increasing prevalence of ESRD may represent a psychosocial stress factor for altered perception of a disease risk. In contrast to the populations who make barriers against the access to the healthcare under denial and fear of CKD [11], other populations may express over estimation and fear of CKD without being at real risks [12].

There is a predominant research focus on the psychiatric disorders among CKD patients under the medical disciplines of psychosomatic urology and nephrology [13]. However, there is an insufficient number of researches involving the psychosocial aspects of CKD among the populations of early stages of CKD and the general populations [14,15,16]. The intense fear or phobia of getting CKD without being at risk is one of these aspects [17]. Owing to the noticeable social vigilance about renal safety, the current study was conducted to evaluate the magnitude and impacts of the fear of ESRD among the patients of loin pain.

Methods

A retrospective study of the patients’ records in our hospital between July 1991 and June 2017 was conducted. Records of the patients who presented with loin pain and intense fear of renal failure as cardinal complaints were reviewed. Phobia of renal failure was defined as long-term (more than 6 months) complaint of irrational fear of renal failure or manifestations referring to this fear such as frequent visits to urological or nephrological care for getting assurance about the kidneys without being at a significant risk and repeating the same complaint with or without psychosomatic manifestations like generalized malaise, sweating, short breath, and chest tightness. Patient records which fulfilled this definition were assigned to have the diagnosis of phobia of renal failure. The findings of psychiatric evaluation which were reported in patients’ records were surrogates to establish the diagnosis of disease phobia. This diagnosis was revised according to the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). The demographic variables including age, gender, and socioeconomic levels were reviewed. Also, relevant findings such as the presence of a relative or a known person who had renal failure and poor socioeconomic factors were studied as potential risk factors. Clinical characteristics were extracted from the reported findings of physical examination and basic laboratory (urine analysis and serum creatinine) and imaging (abdominal ultrasonography and radiography) investigations. Patients with recorded potential significant risks of ESRD such as acute or chronic renal impairment, a relative with hereditary ESRD, multiple urinary surgeries or nephrectomy including living kidney donation and kidney transplantation, systemic chronic diseases such as diabetes mellitus, hypertension, obesity, life-threatening comorbidities such as malignancy, and psychiatric disorders, all were excluded from the current study.

Diagnosis of the status of perception of the risk of renal failure among the patients suffering from loin pain without being at real risks was guided by the modified Common Sense Model (CSM) of Illness Representation [10]. Records of all cases were sufficient to be included in the model.

Results

Out of more than 64, 000 patients who presented with loin pain as a cardinal symptom, only 78 patients (0.12%) met the inclusion criteria to have the diagnosis of phobia of renal failure.

Demographic and clinical characteristics were summarized in Table 1. Mean age ± SD (Range) was 41.12 ± 9.58 (23–60) years. The majority of the cases (65%) were 30–50 years old. Records of clinical examinations did not reveal relevant findings of CKD. Also, values of the basic laboratory tests including urine analysis, renal functions, and imaging were unremarkable in all cases, except in a few cases which had minimal abnormalities resulting in a very little or no risk of renal failure (Table 1).

Table 1 Demographic and clinical characteristics of patients (n = 78) of phobia of renal failure

Referral to psychiatric evaluation and management was recorded to all patients. Eighteen patients (23.1%) refused the continuation of psychiatric management. Sixty patients (76.9%) agreed to psychiatric referral, evaluation, and management. Of them, 13 patients (16.7%) lost their follow up after their first psychiatric management. However, 47 patients (60.3%) continued their management with variable follow up periods (Table 1). Sixteen patients (20.5%) suffered from relapse attacks of phobia of renal failure.

According to CSM, all patients had an altered risk perception of renal failure as an overestimated risk. Illness stimuli and disease representation domains were demonstrated (Table 2). The current experience information source was due to non-self-ESRD experience. Incorrectly formulated cognitive domains with extreme emotional illness representation resulted in irrational fear of renal failure and altered perception of risk. Coping strategies included the frequent seeking of medical consultations and trials to document the renal insults.

Table 2 Stimuli and representations of phobia of renal failure according to CSM

Discussion

Phobia is defined as the experience of an irrational fear with exposure to a certain object or situation. It may develop as a fear of getting a certain illness such as ESRD, where it is known as disease phobia. Previously, it was classified under the old term ʺhypochondriasisʺ, but it should be differentiated from hypochondriasis based on specifying the fear toward a certain disease risk [1, 3]. However, the term hypochondriasis has recently been replaced by two terms; ʺsomatic symptom disordersʺ and ʺillness anxiety disordersʺ according to DSM–5. The former term refers to a fear of a disease with the presence of real physical symptoms. However, the latter term refers to a fear of developing a disease with a little of or without real symptoms [18,19,20]. However, disease phobia could be considered as a specific phobia according to the latest versions of DSM and on the basis of that the fear is from a future rather than from a current disease process [20]. Accordingly, we suggest to consider the fear of renal failure due to loin pain as a specific phobia rather than a somatic symptom disorder. This identification may professionally introduce this mental representation into the clinical practice, because phobia of renal failure may represent a marked psychiatric impact among peoples who have a relative, friend, or a neighbor with CKD or ESRD and on hemodialysis. Clinically, it presents with anxiety disorders such as irrational fear of getting renal failure where it is also known as albuminurophobia [1].

Psychosomatics in urology and nephrology are progressively growing medical disciplines that represent the interface between psychiatry and medicine within the biopsychosocial model of mind–body unity. They deal commonly with the functional symptomization due to psychological burdens such as the problems of CKD in nephrology and the somatoform urinary symptoms including syndromes of chronic genitourinary pain [13, 21, 22]. Extreme fears and phobias of being diseased with renal failure represent the clinical formulation of the altered perception of CKD risk and could be conceptualized as one of the psychosomatic presentation. Because this altered perception is undermined by the socially stigmatized association between loin pain as a cardinal nephrourological symptom and CKD as a cardinal nephrourological pathology, we believed that considering phobia of renal failure as a common entity between the urological and nephrological practices under the topic of psychosomatics could be justified.

The basic sources of information of an individual’s illness are three types. Firstly, the lay or general information source which depends on the cultural knowledge and social communications. Secondly, the external information source which comes from the family, friends, and health care providers. Thirdly, the source of current experiences that may come from the individual himself or his relatives who have an illness or its risk factors and from work-related exposure to illnesses [10, 23]. These sources are known as the illness stimuli and they are incorporated into the CSM [10]. Information from these sources contribute to creation of the cognitive (cause, identity, timeline, controllability, and consequences) and emotional domains of the individual’s representation of a specified illness such as renal failure or formation of the sense of that illness [10, 23]. Although the cognitive illness domains influence individuals’ beliefs and risk perception of diseases as a significant component of the overall disease representations, the emotional domains become important in the description of CKD representations. According to the CSM, emotional states such as fear and distress feelings could be elicited by health threats [10, 23]. Phobia of renal failure in the current series may provide a clear example for the overwhelming role of the emotional representations in the clinical reproduction of the altered perception of risks of CKD and ESRD among the publics for whom there were a very little or no risk.

Perception of ESRD risks among population could be altered by sociocultural factors such as the poor residential, economic deprivations, low education level, and social stressors. This altered perception may affect the access to the health services in the form of under or over motivation. Although the issue of lower access to the healthcare services has been studied on the light of the CSM [10], the magnified altered perception of ESRD risk on the psychosocial bases seems to be not well-studied in the literature [17]. Regarding the risks of renal failure, the population of the current series had definitively no significant risks. Although the relatives of ESRD patients have been reported to have high risks to develop it due to hereditary and familial diseases [24], we included them in the current study. We relied on the exclusion of those patients who had known ESRD relatives with predetermined hereditary causes and on the absence of markers of CKD by investigations. They could be paralleled to the non-donor population in a previous comparison that was done between former living kidney donors and their mates from the general population for the perception of the risks of ESRD [17]. Paradoxically, the non-donors were found to have higher proportions of altered perception of risk relative to the donors. This finding was attributed to the extensive investigation, counseling, and reassurance of the former donors in contrast to the non-donors who lacked these work ups about their renal functions. The non-donors were affected by beliefs such as that they could be affected by the ESRD because of their gene-relatedness to ESRD patients [17].

In the recent era, emotions are considered to have integral physiological and behavioral parts accompanying the mental states or feelings. So, emotions are expressed at three different levels; psychological, physiological, and behavioral. The reaction between these levels provides a spectrum of different forms of emotions of fear starting from the protective physiological level to the psychopathological level of phobia [25]. So, phobia of renal failure due to loin pain could be conceptualized to represent a point of meeting between the medical specialties of Urology, Nephrology, and Psychopathology of emotions within the evolving medical discipline of psychosomatics [21]. This interdisciplinary conceptualization gathers these specialties in a practical framework that may enhance patients’ evaluation and diagnosis.

On the other hand, loin pain is a cardinal symptom in the emergency departments and clinical urological presentations and it is associated with different renal disorders [4,5,6]. Also, the cultural background of the association between renal pain and renal failure represents a form of a generalized fear among publics. Many studies targeted the epidemiology and incidence of loin or flank pain and reported that the non-urological causes represent significant proportions of cases [4, 6].

It has been reported that the low socioeconomic standards are risk factors for CKD due to health care disparities with different mechanisms for CKD development [26]. However, in our country, these factors are predominant and their mechanisms of predisposition to CKD are possible for major proportions of the population. From the current findings, behavioral characteristics of the patients suffering from phobia of renal failure or ESRD include frequent seeking of medical visits, generalized psychosomatic complaints, and persistent trials of linking a renal disorder diagnosis to their pain. The low socioeconomic characteristics played a role in alteration of ESRD risk perception, when they were linked to loin pain. Similar forms of psychosomatic presentations of renal disorders could be found in the literature such as the loin pain hematuria syndrome and psychic anuria [12, 27]. Clinical characterization of flank or loin pain in the emergency departments according to strict guidelines or approaches seems to be heterogeneous due to the individual propensity and expertise. Also, the wide spectrum of differential diagnoses increases the complexity of loin pain. It has been classified into urgent pain that needs treatment within 24 h and non-urgent pain that could be managed electively [6, 28]. In the current study, all the patients could be classified to have non-urgent loin pain. The acuteness of symptoms among those patients was shifted from loin pain toward the emotional aspect of presentation as a strong fear of getting renal failure.

Based on the modified CSM, Migliore et al. [10] studied the altered risk perception of renal disease among the African American population and found it low. In the current study, however, the overwhelming renal illness stimuli in the context of low cognitive representations potentiated the emotional representations and contributed to a paradoxical form of disease risk perception to a degree that fulfilled the definition of disease phobia. Application of the modified CSM to the population of the current study revealed significant values, where the illness stimuli were non-personal current experiences of renal failure. Emotional representations of fear were reliable more than the cognitive domains. Accordingly, modified CSM could be used as a guide for diagnosis of phobia of renal failure. Also, the exaggerated perception of risk was diagnosed by CSM and could be added to the definition of phobia of renal failure to include the followings: the general definition of phobia as irrational fear of renal failure, absence of real risks of CKD with altered perception, and the exaggerated emotional domains in disease representation.

The issue of disease phobia in the urological practice may warrant a focused research. National and multi-center studies of the psychosomatic nephrourological disorders are recommended as much as possible the incidence of these disorders allows.

Despite the favorability of retrospective methods to the rare events, retrospective nature of the current study was the main limiting factor and resulted in inability to apply standardized psychometric tools for diagnosis of disease phobia and its differentiation from hypochondriasis and somatic symptom disorders. Also, comparative analytical studying was not possible.

Conclusions

Phobia of renal failure is a very rare disease phobia and is a consequence of altered perception of renal failure risk among publics on the basis of prevalent associated topics of loin pain and renal failure. Female gender, the presence of relative patients of renal failure, and low socioeconomic levels could be suggested as risk factors for phobia of renal failure. The modified CSM could be used as a guide for determination of disease representation and risk perception.

Availability of data and materials

All data generated or analyzed during this study are included in this article.

Abbreviations

CKD:

chronic kidney disease

CSM:

the common sense model of illness representation

DSM-5:

the fifth edition of the diagnostic and statistical manual of mental disorders

ESRD:

end-stage renal disease

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Acknowledgements

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This study received no funding from any source.

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Dr. RAG developed the concept of the manuscript and contributed to drafting, writing, and submission. Dr. NMA contributed to design, writing and revision. Dr. MFA contributed to design, writing and revision. Dr. AR contributed to data collection, writing, and revision. Dr. AAS contributed to data collection, statistical studying, writing and revision. Dr. MaF contributed to data collection, statistical studying, and revision. Dr. AAF contributed to data collection, writing, and revision. Dr. MoF contributed to writing in consideration to the psychological aspects and revision. Dr. MMO contributed to writing, statistical studying, supervision, and revision. Prof. MAE contributed to writing, supervision, and revision. All authors read and approved the final manuscript and revisions for submission. All authors agreed to be personally accountable for their own contributions and ensure that questions related to the accuracy or integrity of any part of the work, even ones in which they were not personally involved, are appropriately investigated, resolved, and the resolution documented in the literature. All authors read and approved the final manuscript.

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Correspondence to Rabea Ahmed Gadelkareem.

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This study was approved within the frame of the project ʺExperience of a Tertiary-Level Urology Center in the Clinical Urological Events of Rare and Very Rare Incidenceʺ by the Ethical Committee of the Faculty of Medicine, Assiut University, Egypt. Reference approval number is not applicable. Also, it is a retrospective case series study with inclusive written patients’ consent to participate in academic research work, where all patients give this written consent on admission in our university hospital with full ethical considerations.

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Gadelkareem, R.A., Azoz, N.M., Reda, A. et al. Experience of a tertiary-level urology center in the clinical urological events of rare and very rare incidence. III. Psychourological events: 2. Phobia of renal failure due to loin pain. Afr J Urol 26, 35 (2020). https://doi.org/10.1186/s12301-020-00043-8

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Keywords

  • Disease phobia
  • Loin pain
  • Phobia
  • Renal failure
  • Renal pain
  • Specific phobia