| Literature DB >> 34848986 |
Murlidhar Rajagopalan1, Amar Jeet Chitkara2, Samir Dalwai3, Abhishek De4, Ram Gulati5, Samipa Mukherjee6, Sharad Mutalik7, Nidhi Sharma8, Shrutakirthi Shenoi9, Prakash Vaidya10, Amod Tilak11, Charles Adhav11.
Abstract
BACKGROUND: Atopic dermatitis (AD) is a chronic inflammatory, non-communicable, and relapsing skin disease that affects all age groups. There is a dearth of literature that reports the disease burden, and epidemiology and highlights unmet needs in the diagnosis and management of AD in India.Entities:
Keywords: consensus development; cost of illness; dermatologist; epidemiology; pediatrician; quality of life
Year: 2021 PMID: 34848986 PMCID: PMC8626844 DOI: 10.2147/CCID.S327593
Source DB: PubMed Journal: Clin Cosmet Investig Dermatol ISSN: 1178-7015
Consensus Statements
| Consensus Statements | Voting Resultsa | Consensus |
|---|---|---|
| Practicing clinicians are largely cognizant of the significant psychological burden AD has on patients. However, there is a need for more sensitization for estimating the psychological burden | 10/10 | 100% |
| A proactive communication, follow-up calls, patient counseling, and education can improve treatment compliance and strengthen patient-physician relationship | 10/10 | 100% |
| Due to the chronic, recurrent nature of the disease, cost incurred for the treatment of moderate-to-severe AD is comparable to other chronic illness such as diabetes | 10/10 | 100% |
| Multiple factors such as reducing frequency of hospital visits, cost of medication, and providing social cover can reduce the cost of care; however, prompt referral to the specialist in the early stage can reduce humanistic and economic burden of disease | 10/10 | 100% |
| It is important to consider the burden of symptoms while assessing severity of the disease. Additionally, there is a strong need to consider the psychological, social, and monetary impact the disease has on the patient and family members/caregivers/parents | 9/10 | 90% |
| There is a need for a clear and simple definition of AD to estimate its true prevalence in India | 10/10 | 100% |
| There is a lack of countrywide, multicenter survey/study that makes it difficult to estimate the true prevalence of AD in India | 9/9 | 100% |
| A combination of environmental, genetic and familial factors is responsible for AD | 10/10 | 100% |
| A complex interplay of urbanization, environmental (the effect of weather and humidity), and diet may contribute towards the region-specific differences in AD | 10/10 | 100% |
| In majority of cases, AD is underestimated/underdiagnosed in India | 8/10 | 80% |
| Some of the minor symptoms from Hanifin and Rajka criteria are non-significant in the Indian context due to a combination of clinical and genetic factors, along with inconsistencies in the definition of AD, and a higher proportion of patients presenting with mild disease | 7/9 | 77% |
| Patients approach clinicians once home remedies or other treatments do not provide respite; however, this could be specific to the location of practice but largely remains case-specific | 8/9 | 88% |
| The prevalence of childhood AD is more than adolescent/early adulthood AD | 8/10 | 80% |
| Duration of interaction with a patient is case-specific and depends on the severity of the disease, age of patient, and other patient-specific factors | 7/8 | 87% |
| Regardless of the age of patients, both (adult or children) are equally non-compliant to TCS treatment as suggested by the clinician and hence require counseling and awareness | 7/9 | 77% |
| Following SCS treatment, Indian patients with AD rarely experience glaucoma, cataract, osteoporosis, and adrenal insufficiency | 7/9 | 77% |
Note: aNumber of experts who agreed/ number of experts who voted.
Abbreviations: AD, atopic dermatitis; SCS, systemic corticosteroids; TCS, topical corticosteroids.
Figure 1Classification of AD based on severity. Data from25,47.
Studies Determining Prevalence of AD in India
| Author (Year) | Age Group | N | Study Duration | Prevalence | Severity of AD | ||
|---|---|---|---|---|---|---|---|
| Mild | Moderate | Severe | |||||
| Dhar (2002) | 0 months-13 years | 18,285 | April 2000-March 2001 | 0.55% | 54% | 27% | 19% |
| Sarkar (2004) | 0 months-12 years | 418 | January 2000-August 2001 | 29.9% | |||
| 30.8% | 57.7% | 11.5% | |||||
| 44.4% | 56.5% | 3.0% | |||||
| Karthikeyan (2004) | ≤14 years | 2100 | May 2001-June 2002 | 8.6% | Not reported | ||
| Odhiambo (2009) | 6–7 years and 13–14 years | 385,853 and 663,256 | 1999–2004 | 2.7%b | Not reported | ||
| Kumar (2012) | 0 months-15 years | 1829 | January 2010-December 2011 | Overall: 7.21% | 42.4% | 44.7% | 12.9% |
| Sehgal V (2015) | 2–12 years | 100 | May 2010-December 2011 | Overall: 0.98% | Not reported | ||
| Jawade (2015) | ≤14 years | 1021 | June 2009-June 2010 | 20.61%d | Not reported | ||
| Upendra (2017) | 6–16 years | 1943 | - | 4.6% | |||
| 82.4% | 15.7% | 1.9% | |||||
| 87.2% | 10.3% | 2.5% | |||||
Notes: aISSAC study; b6–7 years; c13–14 years; d<1 month age group; e>1 month to 14 years.
Abbreviations: AD, atopic dermatitis; ISAAC, The International Study of Asthma and Allergies in Childhood.
Etiology of AD
| ● Loss of function mutations in the |
| o Associated with skin barrier impairment, increased TEWL, greater penetration of allergens, and increased risk of persistent AD. |
| ● In a prospective, case-control study, the prevalence of |
| o Mutations in S2889X constituted 96.4% of all |
| o |
| ● Malassezia yeast in AD acts as an allergenic aggravating factor provoking recurrent episodes of AD symptoms. |
| o A prospective study in India has shown higher isolation rate of |
| ● Approximately 70% of patients are estimated to have a positive family history. |
| o 2- to 3-fold increased odds when one parent is affected. |
| o 3- to 6-fold if both the parents are affected. |
| o 1.5-fold if one of the parents suffer from any atopic disease. |
| ● Studies conducted in India have shown a wide variation in the proportion of patients with personal (15–54%) and family history (36–65%) for AD. |
| o A study conducted in north India reported that the childhood AD group had patients with personal history (15.37%), family history (36.37%), and both personal and family history (7.36%) of atopy. |
| o In another study, 54% of patients had personal history and 65% of patients had family history of atopy. |
| o Sarkar et al reported that 42.3% from infant group and 35.35% from childhood group had family history of atopy while in the childhood group 7.07% had personal history, and 2.02% had both personal and family history of atopy. |
| ● Air temperature and humidity |
| ● Tobacco smoke |
| ● Low UV light exposure |
| ● Food allergies |
| ● Living in an urban setting |
| ● Consuming a diet high in sugars and polyunsaturated fatty acids |
| ● Repeated exposure to antibiotics before 5 years of age |
| ● Small family size |
| ● High education level of household |
| ● Studies conducted in India showed eczema aggravation in winters due to decreased moisture than summers. |
| o A study in north Indian children showed that 62% of patients had exacerbations in winter while 17% experienced it in summer. |
| o On the contrary, a study in eastern India reported that a higher proportion of patients had aggravation in summer compared to winter (40% vs 15%). |
Abbreviations: AD, atopic dermatitis; FLG, filaggrin; TEWL, transepidermal water loss; UV, ultraviolet.
Figure 2Pathogenesis of AD. Data from 1,29,48.
Expert Panel Recommendations on the Management of AD in India
| ● Educating medical students on enhanced communication skills in addition to considering symptomatic presentation |
| ● Verbal counseling of family members/caregivers/senior members |
| ● Proactive follow-up |
| ● A nation-wide survey that should be/have: |
| o Multicentered and multidisciplinary (including dermatologists, allergy specialist, pediatricians) |
| o Delphi questionnaire to obtain real-world data |
| o Conducted in winter and summer |
| o A simple and clear definition of AD |
| o A well-defined inclusion criterion |
| ● For better understanding of “hygiene hypothesis”, a high-powered nationwide study including all the factors contributing to AD should be considered |
| ● Consider the role of antibiotics and other aspects of immunology responsible for dysbiosis |
| ● A simple and highly sensitive diagnostic criterion |
| ● Consider DLQI in routine management of AD |
| ● Severity scoring should also include psychological, social, and monetary impact of the disease on the patient and family members/caregivers/parents in addition to burden of symptoms |
| ● Proper treatment protocols and longitudinal monitoring to assess treatment-associated side effects |
| ● Regulating the use of TCS among general practitioners and other clinicians |
| ● Rigorous counseling sessions for patients/caregivers while prescribing a steroid |
Abbreviations: AD, atopic dermatitis; DLQI, Dermatology Life Quality Index; QoL, quality of life; TCS, topical corticosteroids.