IMPACT OF SLEEP DYSFUNCTION ON PSYCHOLOGICAL BURDEN IN PATIENTS WITH EMPTY NOSE SYNDROME

The study titled "Impact of Sleep Dysfunction on Psychological Burden in Patients with Empty Nose Syndrome" aimed to explore the relationship between sleep disturbances and psychological symptoms in patients diagnosed with Empty Nose Syndrome (ENS). The research involved 46 patients who had undergone nasal reconstruction surgery using submucosal Medpor implantation between 2016 and 2021.

Study Design and Methods

Patients included in the study were diagnosed with ENS, characterized by paradoxical nasal obstruction following inferior turbinate surgery. The diagnosis was confirmed through symptoms, endoscopic findings, and a positive cotton test. Patients with other sinonasal conditions or psychiatric disorders were excluded. The study utilized the Empty Nose Syndrome 6-item Questionnaire (ENS6Q), Beck Depression Inventory-II (BDI-II), Beck Anxiety Inventory (BAI), Epworth Sleepiness Scale (EpSS), and Modified Sleep Quality Index (MSQI) to evaluate sleep quality, psychological burden, and symptom severity before and 6 months after surgery.

Results

The study revealed significant improvements in ENS symptoms, sleep quality, and psychological distress following surgery. Scores on the ENS6Q, EpSS, MSQI, BDI-II, and BAI all showed significant reductions post-operatively. Specifically, the ENS6Q score decreased from 16.7 to 7.5, EpSS from 11.1 to 7.5, MSQI from 27.9 to 16.9, BDI-II from 20.0 to 7.3, and BAI from 20.1 to 9.7, with all changes being statistically significant (p < 0.001).

The study also identified a strong association between sleep dysfunction and psychological symptoms. Notably, 41.3% of patients experienced moderate-to-severe depression preoperatively. The study used receiver operating characteristic (ROC) curves to determine the sensitivity and specificity of the EpSS and MSQI in detecting moderate-to-severe depression. The ROC analysis revealed that the EpSS and MSQI were effective in identifying depression, with significant areas under the curve (AUC) indicating their utility in clinical settings.

Conclusions

The research underscored the significant impact of sleep dysfunction on psychological symptoms in ENS patients. The findings highlight the importance of addressing sleep issues as part of the management plan for ENS. Improved sleep quality post-surgery was associated with reduced psychological burden, indicating that effective management of sleep disturbances could enhance overall mental health outcomes. The study advocates for integrating sleep evaluation into the care of ENS patients to address and mitigate associated psychological distress.

Overall, this study provides valuable insights into the interplay between sleep and psychological health in ENS patients and supports the need for comprehensive approaches to managing both sleep dysfunction and psychological symptoms in this population.

INVESTIGATING HYPERVENTILATION SYNDROME IN PATIENTS SUFFERING FROM EMPTY NOSE SYNDROME

David Mangin 1 2, Emilie Bequignon 1 2 3 4 5, Francoise Zerah-Lancner 3 4 5 6, Daniel Isabey 3 4 5, Bruno Louis 3 4 5, Serge Adnot 3 4 6, Jean-François Papon 3 5 7 8, André Coste 1 2 3 4 5, Laurent Boyer 3 4 6, Marie Devars du Mayne 1

PMID: 28407251    DOI: 10.1002/lary.26599

Abstract

Objectives/hypothesis: Patients with empty nose syndrome (ENS) following turbinate surgery often complain about breathing difficulties. We set out to determine if dyspnea in patients with ENS was associated with hyperventilation syndrome (HVS). We hypothesized that lower airway symptoms in ENS could be explained by HVS.

Study design: Observational prospective study.

Methods: All consecutive patients referred to our center for ENS over 1 year were invited to participate. Patients completed the Nijmegen score and underwent a hyperventilation provocation test (HVPT) and arterial blood gas and cardiopulmonary tests. HVS was defined by a delayed return of the end-tidal partial pressure of carbon dioxide in the expired gas to baseline during HVPT. Patients with HVS were asked to complete the Sinonasal Outcome Test (SNOT)-16 questionnaire before and after a specific eight-session respiratory rehabilitation program.

Results: Twenty-two of the 29 patients referred for ENS during the study period were eligible for inclusion and underwent a complete workup. HVS was diagnosed in 17 of these patients (77.3%). In the five patients who completed the SNOT-16, the score was significantly lower after rehabilitation.

Conclusions: This study suggests that HVS is frequent in patients with ENS, and that symptoms can be improved by respiratory rehabilitation. Pathophysiological links between ENS and HVS deserve to be further explored.

Level of evidence: 2b Laryngoscope, 127:1983-1988, 2017.

Keywords: Empty nose syndrome; dyspnea; hyperventilation syndrome; hyperventilation test; nasal obstruction.

© 2017 The American Laryngological, Rhinological and Otological Society, Inc.

Effective Diagnosis and Treatment of Empty Nose Syndrome

The article "Diagnosis and Management of Empty Nose Syndrome" provides a comprehensive overview of Empty Nose Syndrome (ENS), a condition that arises primarily as a result of surgical interventions on the nasal turbinates, leading to a loss of tissue and subsequent symptoms that can significantly affect patients' quality of life.

Key Discoveries:

Definition and Symptoms: ENS is characterized by paradoxical nasal obstruction, dryness, and a sense of suffocation despite having a patent nasal airway. The condition was first described by Eugene Kern and Monika Stenkvist in 1994, highlighting its association with tissue loss following turbinate resection. The article emphasizes that ENS is distinct from atrophic rhinitis, although they share some overlapping symptoms.

Iatrogenic Nature: The research underscores that ENS is primarily an iatrogenic disorder, often resulting from aggressive surgical techniques such as turbinectomy or laser ablation. These procedures can lead to significant alterations in nasal airflow sensation and mucosal integrity, which are critical for effective nasal breathing.

Nasal Airflow Sensation: The authors discuss the physiological relationship between nasal airflow sensation and the respiratory center, suggesting that changes in airflow sensation can lead to the perception of nasal obstruction. This insight is crucial for understanding the underlying mechanisms of ENS and guiding treatment approaches.

Management Strategies: The article reviews various management strategies for ENS, noting that many patients have previously failed conservative medical management and have been misdiagnosed. While aggressive nasal hygiene and moisturizers may provide limited relief, surgical options such as submucosal implantation of acellular dermis have shown promise. In a study cited, patients reported subjective improvements in symptoms post-implantation, including enhanced sense of smell and reduced dryness.

Assessment Tools: The authors highlight the importance of comprehensive assessment tools, such as the SNOT-25 questionnaire, which includes ENS-specific questions to aid in the recognition and diagnosis of the condition. This tool helps clinicians better understand the patient's experience and tailor management strategies accordingly.

Conclusions:

The research concludes that ENS is a complex and often underrecognized condition that requires a nuanced understanding of nasal physiology and airflow dynamics. The authors advocate for a cautious approach to turbinate surgery, emphasizing the need for preserving mucosal integrity to prevent ENS. They also call for further research into the pathophysiology of ENS and the development of effective treatment modalities. The findings underscore the importance of clinical suspicion and thorough assessment in diagnosing ENS, as well as the need for individualized treatment plans that address the unique symptoms and experiences of each patient.

In summary, the article provides valuable insights into the diagnosis and management of ENS, highlighting the need for awareness among clinicians and the importance of preserving nasal function during surgical interventions.

SLEEP IMPAIRMENT IN PATIENTS WITH EMPTY NOSE SYNDROME

C-C Huang 1, C-C Lee 2, P-W Wu 3, C-C Chuang 4, Y-S Lee 5, P-H Chang 6, C-C Huang 1, C-H Fu 1, T-J Lee 7

PMID: 36306524
DOI: 10.4193/Rhin22.117

Abstract

Background: Empty nose syndrome (ENS) is characterized by paradoxical nasal obstruction that usually occurs after turbinate surgery. Patients with ENS may also experience significant psychiatric symptoms and sleep dysfunction, which negatively affect the quality of life of affected subjects. This study aimed to evaluate sleep impairment and sleepiness in patients with ENS.

Methods: Patients with ENS and control participants were recruited prospectively. The Sino-Nasal Outcome Test-25 (SNOT-25), Empty Nose Syndrome 6-item Questionnaire (ENS6Q), Epworth Sleepiness Scale (EpSS), and modified sleep quality index (MSQI) were used to evaluate the participants before and after nasal surgery.

Results: Forty-eight patients with ENS and forty-eight age- and sex-matched control subjects were enrolled. The SNOT-25, ENS6Q, EpSS, and MSQI scores in the ENS group were all significantly higher than those in the control group before and after surgery. After surgery, ENS patients all exhibited significant improvements in SNOT-25, ENS6Q, EpSS, and MSQI scores. Regression analysis revealed that SNOT-25 score was a significant predictor of EpSS and MSQI in preoperative evaluations. ENS patients experiencing daytime sleepiness suffered from significantly more "dryness of nose" and "suffocation" than those not experiencing daytime sleepiness.

Conclusions: Patients with ENS experienced significantly impaired sleep quality and sleepiness. Nasal reconstruction surgery improved the sleep quality of ENS patients. The severity of sleep dysfunction is associated with the severity of ENS symptoms. Recognizing individuals with significant sleep impairment and sleepiness and providing appropriate management are critical issues for ENS patients.

DISTINCT HISTOPATHOLOGY CHARACTERISTICS IN EMPTY NOSE SYNDROME

The research titled "Distinct Histopathology Characteristics in Empty Nose Syndrome" investigates the histopathological changes associated with Empty Nose Syndrome (ENS), a condition characterized by nasal obstruction and a sensation of emptiness despite having a patent nasal airway. The study was conducted at Chang Gung Memorial Hospital in Taiwan and involved a cohort of patients diagnosed with ENS who underwent submucosal reconstruction surgery.

Key Findings:

Histopathological Changes: The study identified several distinct histopathological features in ENS patients compared to a control group consisting of patients with benign pituitary tumors. Notably, ENS patients exhibited:

Increased squamous metaplasia (relative risk [RR], 3.54; P = .018).

More submucosal fibrosis (RR, 11.33; P = .008).

A significantly lower number of submucosal glands (mean grading for ENS was 1.71 compared to 3.17 for controls; P = .013).

Thermoreceptor Expression: The research also explored the expression of thermoreceptors, particularly TRPM8, in the nasal mucosa of ENS patients. The findings suggested a decrease in TRPM8 expression, which may play a role in the pathophysiology of ENS.

Psychological Impact: The study noted that patients with ENS had elevated scores on depression and anxiety scales prior to surgical intervention. Postoperative assessments indicated significant improvements in both rhinological and psychological outcomes, suggesting that surgical treatment not only alleviates physical symptoms but also enhances mental well-being.

Conclusions:

The authors concluded that the histopathological changes observed in ENS patients, particularly the increased squamous metaplasia and submucosal fibrosis, may contribute to the pathophysiological mechanisms underlying the syndrome. The study emphasizes the importance of recognizing these histological features to better understand ENS and improve diagnostic and therapeutic approaches. Furthermore, the findings regarding TRPM8 expression warrant further investigation to clarify its role in ENS. Overall, the research highlights the complex interplay between anatomical changes in the nasal mucosa and the clinical manifestations of ENS, advocating for a more nuanced understanding of this condition.

This study represents a significant step in elucidating the histopathological characteristics of ENS and underscores the need for continued research to develop effective diagnostic and treatment strategies for affected patients.

A Review of the Scientific Report: "Suicidal Thoughts in Patients with Empty Nose Syndrome"

The study titled "Suicidal Thoughts in Patients with Empty Nose Syndrome" investigates the prevalence and characteristics of suicidal thoughts among patients diagnosed with Empty Nose Syndrome (ENS). ENS is a condition characterized by paradoxical nasal obstruction despite having a clear nasal airway, leading to significant psychological distress. The research was conducted between 2016 and 2021, involving 62 patients who were prospectively recruited from the Department of Otolaryngology.

Key Findings: The study found that 23 out of the 62 patients (approximately 37%) reported suicidal thoughts. Among these patients, varying degrees of suicidal ideation were noted, with 20 patients indicating thoughts of self-harm without intent to act, two expressing a desire to kill themselves, and one patient indicating a willingness to carry out the act if given the chance. The study utilized several validated questionnaires, including the SNOT-25, ENS6Q, BAI, and BDI-II, to assess the psychological state of the participants and identify the presence of suicidal thoughts.

The results highlighted that patients with suicidal thoughts experienced significantly more severe symptoms, impaired quality of life, and a greater psychological burden compared to those without such thoughts. Notably, the item "nose feels too open" from the ENS6Q was significantly more severe in patients with suicidal ideation, indicating a strong correlation between the perception of nasal obstruction and mental health issues.

Conclusions: The study concluded that suicidal thoughts are prevalent among patients with ENS, emphasizing the need for early identification and intervention. The authors stressed the importance of recognizing individuals at risk of suicide and providing appropriate psychological support to prevent tragic outcomes. They also noted that the degree of depression and anxiety in these patients warrants further investigation, suggesting that future studies should include larger sample sizes and collaborate with mental health specialists to better understand the relationship between ENS, depression, and suicidal thoughts.

Overall, the research underscores the critical need for comprehensive mental health assessments in patients with ENS, as well as the integration of psychological care into the treatment plans for these individuals. The findings serve as a call to action for healthcare providers to be vigilant in screening for suicidal ideation and to implement strategies that address both the physical and psychological aspects of ENS.

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REVIEW OF EMPTY NOSE SYNDROME

The research article on Empty Nose Syndrome (ENS) provides a comprehensive overview of this complex condition, which is often misdiagnosed or misunderstood. ENS typically occurs following surgical procedures involving the nasal turbinates, particularly inferior turbinectomy, and is characterized by a paradoxical sensation of nasal obstruction despite the nasal passages being physically open. This condition can lead to significant distress, as patients may experience symptoms such as dryness, crusting, and a feeling of suffocation.

Summary of Findings

Distinction from Atrophic Rhinitis: The article highlights that ENS was historically considered a form of atrophic rhinitis. However, recent literature suggests a clear distinction between the two, as ENS involves unique symptoms and underlying mechanisms. While both conditions share symptoms like nasal obstruction and dryness, ENS is specifically linked to surgical alterations in the nasal anatomy.

Symptoms and Diagnosis: The primary symptom of ENS is a sensation of nasal obstruction, which can be accompanied by feelings of breathlessness and suffocation. Diagnosis is primarily clinical, relying on patient-reported symptoms and physical examination findings, such as pale and dry nasal mucosa. The cotton test is mentioned as a simple diagnostic tool, where a piece of moist cotton is placed in the nasal cavity to assess symptom relief.

Surgical and Medical Management: The article emphasizes the importance of conservative surgical techniques to minimize the risk of ENS. It advocates for preserving turbinate structures during surgery to maintain physiological functions such as humidification and airflow regulation. Medical management includes nasal hydration, saline lavage, and possibly local corticosteroids, although these treatments may be less effective in ENS compared to atrophic rhinitis.

Future Directions: The authors call for further research to better understand the pathophysiology of ENS and to develop standardized diagnostic criteria and treatment protocols. They also highlight the need for psychological support for patients, as the condition can significantly impact their quality of life.

Conclusion

The study concludes that Empty Nose Syndrome is a significant clinical entity that should not be overlooked, particularly as it can severely affect patients who initially present with nasal obstruction. The authors stress the importance of preventive measures, advocating for the least invasive surgical options and comprehensive medical management to address symptoms effectively. The findings underscore the need for a multidisciplinary approach to manage ENS, considering both the physical and psychological aspects of the condition.

In summary, the research sheds light on the complexities of ENS, revealing its distinct characteristics, the interplay of psychological factors, and the necessity for careful surgical planning and patient support.

Empty Nose Syndrome Limbic System Activation Observed by Functional Magnetic Resonance Imaging

The study titled "Empty Nose Syndrome: Limbic System Activation Observed by Functional Magnetic Resonance Imaging" investigates the neurological and psychological aspects of Empty Nose Syndrome (ENS), a condition that arises after radical resection of nasal turbinates, leading to a persistent sensation of impaired nasal patency despite objective measurements indicating otherwise. The research aimed to elucidate the differences in cerebral activation in ENS patients during free breathing and after inhalation of specific fragrances, namely menthol and lemonene.

Study Design and Methods: The study was a prospective, controlled intervention involving ten right-handed ENS patients and fifteen control subjects. The researchers employed functional magnetic resonance imaging (f-MRI) to analyze brain activity while participants rated their perception of nasal patency. Nasal airflow was measured using rhinomanometry, and participants rated their nasal patency on a four-point scale. The study specifically focused on the effects of menthol, which was hypothesized to provide a beneficial sensation, and lemonene, which served as a control fragrance without known effects on nasal patency.

Key Findings:

Perception vs. Objective Measurement: Despite similar objective nasal airflow measurements between ENS patients and controls, ENS patients reported significantly worse nasal patency. This discrepancy highlights the subjective nature of nasal sensation in ENS.

Impact of Menthol: The inhalation of menthol was perceived to enhance nasal patency among patients. f-MRI data revealed distinct activation patterns in the temporal cortex and limbic system areas, particularly the amygdala, during the rating task after menthol inhalation.

Cerebral Activation Patterns: The comparison between ENS patients and controls showed specific activation in the temporal and cerebellar areas, as well as the amygdala, indicating that ENS patients process the sensation of nasal patency differently than healthy individuals. The activation of limbic system areas suggests a strong emotional component associated with the perception of nasal airflow.

Conclusions: The study concluded that ENS patients exhibit altered cerebral processing related to their perception of nasal patency, with significant activation in brain regions associated with emotional responses. The findings suggest that the beneficial effects of menthol correspond to these activation differences, particularly in the temporal pole. This research provides a neuronal substrate for understanding the symptoms of ENS and their relief, emphasizing the complex interplay between sensory perception, emotional processing, and the physiological state of nasal airflow.

Overall, the study sheds light on the psychological and neurological dimensions of ENS, suggesting that treatment approaches may need to consider both the physical and emotional aspects of the condition to improve patient outcomes.

The functional and psychological burden of empty nose syndrome

The research titled "The functional and psychological burden of empty nose syndrome" investigates the significant mental health and functional impairments experienced by individuals suffering from Empty Nose Syndrome (ENS). Conducted under the auspices of the human ethics and research committee at Stanford University, the study involved self-identified ENS patients recruited from online forums between January and May 2017. Participants were required to demonstrate a positive score on the Empty Nose Syndrome 6-item Questionnaire (ENS6Q) and provide medical documentation and CT imaging confirming a history of inferior turbinate reduction.

The study included 53 ENS individuals, with an average age of 39.8 years, and assessed various aspects of their health using several validated questionnaires, including the Patient Health Questionnaire (PHQ-9) for depression, the Generalized Anxiety Disorder questionnaire (GAD-7), and the Work Productivity and Impairment questionnaire (WPAI). The results revealed that a significant proportion of participants reported clinically significant symptoms of depression (68%) and anxiety (66%). The average duration of symptoms among participants was 8.2 years, indicating a long-term burden.

Key findings highlighted a strong correlation between the severity of ENS symptoms and levels of depression, anxiety, and impairment in daily activities. Specifically, participants reported a 62% reduction in workplace productivity and a 65% reduction in their ability to engage in non-work-related activities. The study also found that participants experienced moderate difficulties in mobility, pain/discomfort, and anxiety/depression, as measured by the EuroQol General Health State Survey (EQ-5D-5L).

The study concluded that individuals with ENS carry a clinically significant psychiatric disease burden, which severely impacts their quality of life and daily functioning. The findings underscore the need for further research to explore the psychiatric aspects of ENS and to develop comprehensive treatment strategies that address both the physical and mental health challenges faced by these patients. Future studies are encouraged to include mental health and functional outcomes as part of clinical improvement markers in ENS treatment interventions, thereby informing better management strategies for this condition.

 

Empty Nose Syndrome Pathophysiology: A Systematic Review

The research article presents a systematic review of the pathophysiology of Empty Nose Syndrome (ENS), a condition characterized by paradoxical nasal obstruction and a sensation of emptiness in the nasal cavity, often following surgical interventions aimed at relieving nasal obstruction. The review aimed to consolidate existing knowledge regarding the mechanisms underlying ENS, which remain poorly defined despite significant research efforts.

The authors conducted a comprehensive search of the literature, yielding 2,476 studies after removing duplicates. Ultimately, 19 studies were included in the qualitative analysis. These studies varied in design, including case-control and cross-sectional studies, and involved a total of 489 adult patients diagnosed with ENS. The definition of ENS varied across studies, with some relying on self-identification, while others used specific questionnaires like the Empty Nose Syndrome 6 Questionnaire (ENS6Q) or defined it by the presence of paradoxical obstruction.

Key findings from the review highlighted several important themes:

Symptomatology: Patients with ENS reported a range of symptoms, including nasal obstruction, dryness, and a lack of sensation. The severity of these symptoms was often comparable to those experienced by patients with chronic rhinitis, indicating a significant impact on quality of life.

Mental Health: A notable correlation was found between ENS symptoms and mental health issues, such as anxiety and depression. The burden of these psychological conditions was significant, with some patients experiencing severe distress and a diminished quality of life.

Anatomical and Physiological Changes: The review noted that while patients with ENS often had a patent nasal airway, structural changes in the nasal cavity could still be present. However, the relationship between these anatomical changes and the symptoms of ENS was not straightforward, as many patients did not exhibit typical signs of nasal obstruction.

Airflow Dynamics: The influence of altered airflow on the perception of nasal patency was discussed, with some theories suggesting that changes in airflow dynamics could contribute to the sensation of emptiness experienced by ENS patients.

Neurosensory Dysfunction: The review also explored the possibility of neurosensory decline, where patients may have an altered perception of nasal sensations, leading to the symptoms associated with ENS.

Psychogenic Factors: Psychogenic dysfunction was identified as a potential contributor to ENS, with some patients experiencing heightened awareness of their symptoms, which could exacerbate their condition.In conclusion, the systematic review underscored the complexity of ENS, revealing that it is not merely a result of anatomical changes following surgery but is also influenced by psychological, sensory, and airflow-related factors. The findings emphasize the need for a multidisciplinary approach to understanding and managing ENS, considering both the physical and psychological aspects of the condition. The authors advocate for further research to clarify the pathophysiological mechanisms of ENS and improve diagnostic and therapeutic strategies for affected patients.