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Papers by Ravindran Chetambath

Research paper thumbnail of Post-COVID-19 Respiratory Management: Expert Panel Report

The Indian journal of chest diseases & allied sciences, Nov 7, 2022

Research paper thumbnail of Long COVID and beyond: Persistence of symptoms 1 year after COVID-19 infection

Journal of Advanced Lung Health

Research paper thumbnail of Recurrence and Malignant Transformation of Thymoma After 26 Years – A Rare Presentation

The Indian practitioner, Jan 22, 2021

Research paper thumbnail of Obesity, Obstructive Sleep Apnoea, and Metabolic Syndrome: The Fatal Association

The Indian practitioner, Jun 16, 2021

Research paper thumbnail of Fibrotic hypersensitivity pneumonitis

Journal of Advanced Lung Health, 2023

Hypersensitivity pneumonitis (HP), which is otherwise known as extrinsic allergic alveolitis, is... more Hypersensitivity pneumonitis (HP), which is otherwise known as extrinsic allergic
alveolitis, is a clinical syndrome characterized by diffuse interstitial involvement
secondary to exposure to organic antigens. The diagnosis of HP relies on the
clinical evaluation of a number of features, including a history of significant
exposure to potentially causative antigens, physical examination, chest computed
tomography (CT) scan appearances, bronchoalveolar lavage (BAL) lymphocytosis,
and, in selected cases, histology. Now the entity is classified as nonfibrotic HP and
fibrotic HP. Here we review the recent literature to highlight the new classification.

Research paper thumbnail of When COVID rules…. Severe acute respiratory illness due to another virus

Journal of Advanced Lung Health

This is a case of a 49-year-old male alcoholic who developed severe breathlessness, desaturation,... more This is a case of a 49-year-old male alcoholic who developed severe breathlessness, desaturation, and loss of consciousness following an alcoholic bout. Due to the ongoing COVID pandemic, he was suspected to be having COVID-19 infection. His clinical and radiological presentations were atypical for COVID-19. On investigations, it was found to be due to another rare viral pneumonia. The case is being reported due to its rarity.

Research paper thumbnail of An unusual site for chest wall trauma

Journal of Advanced Lung Health

Research paper thumbnail of Pathogenic Fungi in the Environment Causing Acute Exacerbation of COPD and its Link to Coffee Plantations in Wayanad District of Kerala-A Prospective Study

Research paper thumbnail of New challenges in asthma management

Calicut Medical Journal, Aug 9, 2014

Focus on a specific target in a well defined phenotype of asthma is more likely to lead to a more... more Focus on a specific target in a well defined phenotype of asthma is more likely to lead to a more successful treatment outcome than in a nonphenotyped group. This can be accomplished by further grouping the phenotype based on pathophysiological characteristics. Specific treatments for asthma are unlikely to benefit all patients with asthma, but more likely target specific phenotypes. Asthma is a complex disease and is no more considered as a single entity. It is an umbrella of term constituting many phenotypes, each varying in its clinical presentation and response to treatment.

Research paper thumbnail of From the editorial desk

International Journal of Circumpolar Health, 2004

Research paper thumbnail of Hypersensitivity Pneumonitis: Clinical Manifestations, Pathogenesis, Diagnosis, and Therapeutic Strategies

Seminars in Respiratory and Critical Care Medicine, 1993

... Titre du document / Document title. Hypersensitivity pneumonitis: clinical manifestations, pa... more ... Titre du document / Document title. Hypersensitivity pneumonitis: clinical manifestations, pathogenesis, diagnosis, and therapeutic strategies. Auteur(s) / Author(s). SELMAN M. ; CHAPELA R. ; GANESH RAGHU ; Affiliation(s) du ou des auteurs / Author(s) Affiliation(s). Inst. ...

Research paper thumbnail of Rare tracheobronchial anomalies and their clinical significance

Journal of Advanced Lung Health

Tracheobronchial anomalies are often congenital and do not cause much symptoms to the individual.... more Tracheobronchial anomalies are often congenital and do not cause much symptoms to the individual. Majority of them are branching anomalies. Most of them are incidentally detected during bronchoscopy for unrelated diseases. However, rarely abnormal bronchi may present with symptoms. He we present two rare bronchial anomalies presenting with clinical symptoms attributed to them.

Research paper thumbnail of Unusual fungal infection in an immunocompetent host

Journal of Advanced Lung Health

Cryptococcus is a fungus that causes infections most commonly in immunocompromised patients. Howe... more Cryptococcus is a fungus that causes infections most commonly in immunocompromised patients. However, approximately one-third of cases of cryptococcosis are seen in patients who have no readily identifiable immune defects. Pulmonary cryptococcosis often manifests as isolated or multiple nodules, easily mimicking lung cancer clinically and radiologically. This case report highlights the tumor-like presentation of cryptococcosis in an immunocompetent patient.

Research paper thumbnail of Innovations help when there is unexpected demand

Journal of Advanced Lung Health

Research paper thumbnail of COVID 19: How to Tackle Community Spread?

The Indian practitioner, 2020

Research paper thumbnail of Pulmonary rehabilitation in chronic respiratory insufficiency. 9. How to keep the customer satisfied

Research paper thumbnail of Predictors of Survival in Patients with Interstitial Lung Diseases (ILD) Enrolled in the ILD-India Registry: Follow-Up of Participants from Urban Areas in India

B46. IDIOPATHIC INTERSTITIAL PNEUMONIA: NATURAL HISTORY, 2019

Research paper thumbnail of Survival predictors of interstitial lung disease in India: Follow-up of Interstitial Lung Disease India registry

Lung India : Official Organ of Indian Chest Society, 2021

Background: Predictors of survival for interstitial lung disease (ILD) in the Indian population h... more Background: Predictors of survival for interstitial lung disease (ILD) in the Indian population have not been studied. The primary objective of the study was to assess the Modified-Gender Age and Physiology (M-GAP) score to predict survival in patients with ILD seen in clinical practice. We also analyzed the role of demographic and radiological characteristics in predicting the survival of patients with ILD. Materials and Methods: In the ILD India registry, data were collected from 27 centers across 19 cities in India between March 2012 and June 2015. A single follow-up was conducted at 18 centers who agreed to participate in the follow-up in 2017. M-GAP score (range 0–5) was calculated with the following variables: age (≤60 years 0, 61–65 years 1, and >65 years 2), gender (female 0, male 1), and forced vital capacity% (>75% 0, 50%–75% 1, and >75% 2). A score of 0–3 and score of 4 and 5 were classified into Stage 1 and 2, respectively. Other predictors of survival, such as ...

Research paper thumbnail of Aspergillus CR.pdf

Study evaluating the link between coffee plantation in Wayanad and exacerbation of chronic obstru... more Study evaluating the link between coffee plantation in Wayanad and exacerbation of chronic obstructive pulmonary disease.

Research paper thumbnail of A Case of Bochdalek Hernia in an Elderly Patient

The Indian practitioner, 2019

Bochdalek hernia (BH) is a type of congenital diaphragmatic hernia which commonly presents in chi... more Bochdalek hernia (BH) is a type of congenital diaphragmatic hernia which commonly presents in childhoodand is extremely rare in adults. Most of cases in adults are asymptomatic and can lead to fatal complicationsif not diagnosed early. Here we present a rare case of Bochdalek hernia in an elderly female patient.Congenital Bochdalek hernia presenting at such an advanced age is not reported in literature so far.

Research paper thumbnail of Post-COVID-19 Respiratory Management: Expert Panel Report

The Indian journal of chest diseases & allied sciences, Nov 7, 2022

Research paper thumbnail of Long COVID and beyond: Persistence of symptoms 1 year after COVID-19 infection

Journal of Advanced Lung Health

Research paper thumbnail of Recurrence and Malignant Transformation of Thymoma After 26 Years – A Rare Presentation

The Indian practitioner, Jan 22, 2021

Research paper thumbnail of Obesity, Obstructive Sleep Apnoea, and Metabolic Syndrome: The Fatal Association

The Indian practitioner, Jun 16, 2021

Research paper thumbnail of Fibrotic hypersensitivity pneumonitis

Journal of Advanced Lung Health, 2023

Hypersensitivity pneumonitis (HP), which is otherwise known as extrinsic allergic alveolitis, is... more Hypersensitivity pneumonitis (HP), which is otherwise known as extrinsic allergic
alveolitis, is a clinical syndrome characterized by diffuse interstitial involvement
secondary to exposure to organic antigens. The diagnosis of HP relies on the
clinical evaluation of a number of features, including a history of significant
exposure to potentially causative antigens, physical examination, chest computed
tomography (CT) scan appearances, bronchoalveolar lavage (BAL) lymphocytosis,
and, in selected cases, histology. Now the entity is classified as nonfibrotic HP and
fibrotic HP. Here we review the recent literature to highlight the new classification.

Research paper thumbnail of When COVID rules…. Severe acute respiratory illness due to another virus

Journal of Advanced Lung Health

This is a case of a 49-year-old male alcoholic who developed severe breathlessness, desaturation,... more This is a case of a 49-year-old male alcoholic who developed severe breathlessness, desaturation, and loss of consciousness following an alcoholic bout. Due to the ongoing COVID pandemic, he was suspected to be having COVID-19 infection. His clinical and radiological presentations were atypical for COVID-19. On investigations, it was found to be due to another rare viral pneumonia. The case is being reported due to its rarity.

Research paper thumbnail of An unusual site for chest wall trauma

Journal of Advanced Lung Health

Research paper thumbnail of Pathogenic Fungi in the Environment Causing Acute Exacerbation of COPD and its Link to Coffee Plantations in Wayanad District of Kerala-A Prospective Study

Research paper thumbnail of New challenges in asthma management

Calicut Medical Journal, Aug 9, 2014

Focus on a specific target in a well defined phenotype of asthma is more likely to lead to a more... more Focus on a specific target in a well defined phenotype of asthma is more likely to lead to a more successful treatment outcome than in a nonphenotyped group. This can be accomplished by further grouping the phenotype based on pathophysiological characteristics. Specific treatments for asthma are unlikely to benefit all patients with asthma, but more likely target specific phenotypes. Asthma is a complex disease and is no more considered as a single entity. It is an umbrella of term constituting many phenotypes, each varying in its clinical presentation and response to treatment.

Research paper thumbnail of From the editorial desk

International Journal of Circumpolar Health, 2004

Research paper thumbnail of Hypersensitivity Pneumonitis: Clinical Manifestations, Pathogenesis, Diagnosis, and Therapeutic Strategies

Seminars in Respiratory and Critical Care Medicine, 1993

... Titre du document / Document title. Hypersensitivity pneumonitis: clinical manifestations, pa... more ... Titre du document / Document title. Hypersensitivity pneumonitis: clinical manifestations, pathogenesis, diagnosis, and therapeutic strategies. Auteur(s) / Author(s). SELMAN M. ; CHAPELA R. ; GANESH RAGHU ; Affiliation(s) du ou des auteurs / Author(s) Affiliation(s). Inst. ...

Research paper thumbnail of Rare tracheobronchial anomalies and their clinical significance

Journal of Advanced Lung Health

Tracheobronchial anomalies are often congenital and do not cause much symptoms to the individual.... more Tracheobronchial anomalies are often congenital and do not cause much symptoms to the individual. Majority of them are branching anomalies. Most of them are incidentally detected during bronchoscopy for unrelated diseases. However, rarely abnormal bronchi may present with symptoms. He we present two rare bronchial anomalies presenting with clinical symptoms attributed to them.

Research paper thumbnail of Unusual fungal infection in an immunocompetent host

Journal of Advanced Lung Health

Cryptococcus is a fungus that causes infections most commonly in immunocompromised patients. Howe... more Cryptococcus is a fungus that causes infections most commonly in immunocompromised patients. However, approximately one-third of cases of cryptococcosis are seen in patients who have no readily identifiable immune defects. Pulmonary cryptococcosis often manifests as isolated or multiple nodules, easily mimicking lung cancer clinically and radiologically. This case report highlights the tumor-like presentation of cryptococcosis in an immunocompetent patient.

Research paper thumbnail of Innovations help when there is unexpected demand

Journal of Advanced Lung Health

Research paper thumbnail of COVID 19: How to Tackle Community Spread?

The Indian practitioner, 2020

Research paper thumbnail of Pulmonary rehabilitation in chronic respiratory insufficiency. 9. How to keep the customer satisfied

Research paper thumbnail of Predictors of Survival in Patients with Interstitial Lung Diseases (ILD) Enrolled in the ILD-India Registry: Follow-Up of Participants from Urban Areas in India

B46. IDIOPATHIC INTERSTITIAL PNEUMONIA: NATURAL HISTORY, 2019

Research paper thumbnail of Survival predictors of interstitial lung disease in India: Follow-up of Interstitial Lung Disease India registry

Lung India : Official Organ of Indian Chest Society, 2021

Background: Predictors of survival for interstitial lung disease (ILD) in the Indian population h... more Background: Predictors of survival for interstitial lung disease (ILD) in the Indian population have not been studied. The primary objective of the study was to assess the Modified-Gender Age and Physiology (M-GAP) score to predict survival in patients with ILD seen in clinical practice. We also analyzed the role of demographic and radiological characteristics in predicting the survival of patients with ILD. Materials and Methods: In the ILD India registry, data were collected from 27 centers across 19 cities in India between March 2012 and June 2015. A single follow-up was conducted at 18 centers who agreed to participate in the follow-up in 2017. M-GAP score (range 0–5) was calculated with the following variables: age (≤60 years 0, 61–65 years 1, and >65 years 2), gender (female 0, male 1), and forced vital capacity% (>75% 0, 50%–75% 1, and >75% 2). A score of 0–3 and score of 4 and 5 were classified into Stage 1 and 2, respectively. Other predictors of survival, such as ...

Research paper thumbnail of Aspergillus CR.pdf

Study evaluating the link between coffee plantation in Wayanad and exacerbation of chronic obstru... more Study evaluating the link between coffee plantation in Wayanad and exacerbation of chronic obstructive pulmonary disease.

Research paper thumbnail of A Case of Bochdalek Hernia in an Elderly Patient

The Indian practitioner, 2019

Bochdalek hernia (BH) is a type of congenital diaphragmatic hernia which commonly presents in chi... more Bochdalek hernia (BH) is a type of congenital diaphragmatic hernia which commonly presents in childhoodand is extremely rare in adults. Most of cases in adults are asymptomatic and can lead to fatal complicationsif not diagnosed early. Here we present a rare case of Bochdalek hernia in an elderly female patient.Congenital Bochdalek hernia presenting at such an advanced age is not reported in literature so far.