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Full-Text Articles in Respiratory Tract Diseases

Risk Factors For Acute Respiratory Infections In Children Between 0 And 23 Months Of Age In A Peri-Urban District In Pakistan: A Matched Case–Control Study, Fatima Mir, Shabina Ariff, Maria Asif Bhura, Suhail Chanar, Aspara Ali, Muhammad Jawwad, A Hussain, Arjumand Rizvi, Muhammad Umer, Zahid Memon, Atif Habib, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta Jan 2022

Risk Factors For Acute Respiratory Infections In Children Between 0 And 23 Months Of Age In A Peri-Urban District In Pakistan: A Matched Case–Control Study, Fatima Mir, Shabina Ariff, Maria Asif Bhura, Suhail Chanar, Aspara Ali, Muhammad Jawwad, A Hussain, Arjumand Rizvi, Muhammad Umer, Zahid Memon, Atif Habib, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta

Department of Paediatrics and Child Health

Background: Acute respiratory infection (ARI) accounts for nearly 15% of all childhood mortality in South Asia, with children from rural areas at higher risk due to inaccessibility to healthcare facilities. We therefore aimed to identify risk factors associated with ARI in children under 2 years of age in rural Pakistan.
Methods: A retrospective 1:2 matched case-control study was conducted between October and December 2018 in Taluka Kotri, Jamshoro District of Pakistan. Cases were identified as children between 0 and 23 months of age with a history of fever, cough, sore throat, fast breathing, difficulty breathing, or chest indrawing in the …


Distance From Healthcare Facilities Is Associated With Increased Morbidity Of Acute Infection In Pediatric Patients In Matiari, Pakistan, Elise Corden, Saman Hasan Siddiqui, Yash Sharma, Sheraz Ahmed, Fayyaz Umrani, Najeeb Rahman, Rafey Ali, Najeeha Talat Iqbal, Syed Asad Ali, Sana Syed Nov 2021

Distance From Healthcare Facilities Is Associated With Increased Morbidity Of Acute Infection In Pediatric Patients In Matiari, Pakistan, Elise Corden, Saman Hasan Siddiqui, Yash Sharma, Sheraz Ahmed, Fayyaz Umrani, Najeeb Rahman, Rafey Ali, Najeeha Talat Iqbal, Syed Asad Ali, Sana Syed

Department of Paediatrics and Child Health

The relationship between environmental factors and child health is not well understood in rural Pakistan. This study characterized the environmental factors related to the morbidity of acute respiratory infections (ARIs), diarrhea, and growth using geographical information systems (GIS) technology. Anthropometric, address and disease prevalence data were collected through the SEEM (Study of Environmental Enteropathy and Malnutrition) study in Matiari, Pakistan. Publicly available map data were used to compile coordinates of healthcare facilities. A Pearson correlation coefficient (r) was used to calculate the correlation between distance from healthcare facilities and participant growth and morbidity. Other continuous variables influencing these …


Impact Of Pulse Oximetry On Hospital Referral Acceptance In Children Under 5 With Severe Pneumonia In Rural Pakistan (District Jamshoro): Protocol For A Cluster Randomised Trial, Fatima Mir, Apsara Ali, Suhail Chanar, Amjad Hussain, Arjumand Rizvi, Imran Ahmed, Zahid Memon, Atif Habib, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta Sep 2021

Impact Of Pulse Oximetry On Hospital Referral Acceptance In Children Under 5 With Severe Pneumonia In Rural Pakistan (District Jamshoro): Protocol For A Cluster Randomised Trial, Fatima Mir, Apsara Ali, Suhail Chanar, Amjad Hussain, Arjumand Rizvi, Imran Ahmed, Zahid Memon, Atif Habib, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta

Department of Paediatrics and Child Health

Background: Pneumonia is a leading cause of death among children under 5 specifically in South Asia and sub-Saharan Africa. Hypoxaemia is a life-threatening complication among children under 5 with pneumonia. Hypoxaemia increases risk of mortality by 4.3 times in children with pneumonia than those without hypoxaemia. Prevalence of hypoxaemia varies with geography, altitude and severity (9%-39% Asia, 3%-10% African countries). In this protocol paper, we describe research methods for assessing impact of Lady Health Workers (LHWs) identifying hypoxaemia in children with signs of pneumonia during household visits on acceptance of hospital referral in district Jamshoro, Sindh.
Methods and analysis: A …


Challenges Of Assessing Community Mortality Due To Respiratory Viruses In Children Aged Less Than 5 Years, Mauricio T. Caballero, Ashish Satav, Christopher J. Gill, Saad B. Omer, Rachel C. Pieciak, Abdul Momin Kazi, Eric Af Simões, Fernando P. Polack Sep 2021

Challenges Of Assessing Community Mortality Due To Respiratory Viruses In Children Aged Less Than 5 Years, Mauricio T. Caballero, Ashish Satav, Christopher J. Gill, Saad B. Omer, Rachel C. Pieciak, Abdul Momin Kazi, Eric Af Simões, Fernando P. Polack

Department of Paediatrics and Child Health

Background: Estimating the real impact of respiratory syncytial virus (RSV) disease is key for the development of vaccines and treatments. Ascertaining the burden of community mortality due to RSV is challenging due to the lack of primary data. Therefore, conducting observational studies to determine the factors associated with community mortality due to the virus in developing countries is important.
Objective: Our aim in this study was to describe the obstacles, gaps, and challenges that investigators face in low-income, vulnerable regions in 4 developing countries on 3 continents.
Results: The main obstacles and challenges of ascertaining community mortality due to RSV …


Global Respiratory Syncytial Virus-Related Infant Community Deaths, Natalie I. Mazur, Yvette N. Löwensteyn, Joukje E. Willemsen, Christopher J. Gill, Leah Forman, Lawrence M. Mwananyanda, Dianna M. Blau, Robert F. Breiman, Shabir A. Madhi, Abdul Momin Kazi Sep 2021

Global Respiratory Syncytial Virus-Related Infant Community Deaths, Natalie I. Mazur, Yvette N. Löwensteyn, Joukje E. Willemsen, Christopher J. Gill, Leah Forman, Lawrence M. Mwananyanda, Dianna M. Blau, Robert F. Breiman, Shabir A. Madhi, Abdul Momin Kazi

Department of Paediatrics and Child Health

Background: Respiratory syncytial virus (RSV) is a leading cause of pediatric death, with >99% of mortality occurring in low- and lower middle-income countries. At least half of RSV-related deaths are estimated to occur in the community, but clinical characteristics of this group of children remain poorly characterized.
Methods: The RSV Global Online Mortality Database (RSV GOLD), a global registry of under-5 children who have died with RSV-related illness, describes clinical characteristics of children dying of RSV through global data sharing. RSV GOLD acts as a collaborative platform for global deaths, including community mortality studies described in this supplement. We aimed …


Respiratory Syncytial Virus-Associated Mortality Among Young Infants In Karachi, Pakistan: A Prospective Postmortem Surveillance Study, Abdul Momin Kazi, Obianuju G. Aguolu, Waliyah Mughis, Nazia Ahsan, Saima Jamal, Ayub Khan, Hanya M. Qureshi, Inci Yildirim, Fauzia A. Malik, Saad B. Omer Sep 2021

Respiratory Syncytial Virus-Associated Mortality Among Young Infants In Karachi, Pakistan: A Prospective Postmortem Surveillance Study, Abdul Momin Kazi, Obianuju G. Aguolu, Waliyah Mughis, Nazia Ahsan, Saima Jamal, Ayub Khan, Hanya M. Qureshi, Inci Yildirim, Fauzia A. Malik, Saad B. Omer

Department of Paediatrics and Child Health

Background: Respiratory syncytial virus (RSV) is an important cause of infant morbidity and mortality and a potential target for maternal immunization strategies. However, data on the role of RSV in young infant deaths in developing countries are limited.
Methods: We conducted a community-based mortality surveillance from August 2018-March 2020 for infants ≤6 months in Karachi, Pakistan. We tested (reverse transcription-polymerase chain reaction) nasopharyngeal swabs from deceased infants for presence of RSV. We performed verbal autopsies and calculated odds of RSV-associated mortality with 95% CIs and used multivariable logistic regression to evaluate associations.
Results: We collected 490 nasopharyngeal specimens from 1280 …


Vitamin D Status And Pulmonary Exacerbations In Children And Adolescents With Cystic Fibrosis: Experience From A Tertiary Care Center, Danish Abdul Aziz, Syeda Khadija Fatima, Haissan Iftikhar, Fatima Mir Jul 2021

Vitamin D Status And Pulmonary Exacerbations In Children And Adolescents With Cystic Fibrosis: Experience From A Tertiary Care Center, Danish Abdul Aziz, Syeda Khadija Fatima, Haissan Iftikhar, Fatima Mir

Department of Paediatrics and Child Health

Background: The function of Vitamin D in preventing inflammation and infection has been studied previously for different pathologies in different populations globally. Relationships between serum Vitamin D levels and its effect on pulmonary exacerbations in the cystic fibrosis (CF) population are not well studied in our part of the world. Therefore, we aimed to ascertain the Vitamin D status in pediatric and adolescent CF patients and its association with pulmonary exacerbations.
Materials and methods: A retrospective study was conducted at The Aga Khan University Hospital from 2015 to 2018. Patients of CF with sweat chloride value >60 mmol/l and who …


High Flow Nasal Cannula Therapy In Children With Acute Respiratory Insufficiency In The Pediatric Intensive Care Unit Of A Resource-Limited Country: A Preliminary Experience, Bushra Saeed, Asim Azim, Anwar Ul Haque, Qalab Abbas Jan 2021

High Flow Nasal Cannula Therapy In Children With Acute Respiratory Insufficiency In The Pediatric Intensive Care Unit Of A Resource-Limited Country: A Preliminary Experience, Bushra Saeed, Asim Azim, Anwar Ul Haque, Qalab Abbas

Department of Paediatrics and Child Health

A retrospective study was performed in children (aged one month - 16 years) receiving HFNC to determine the frequency, efficacy and adverse effects of high flow nasal cannula (HFNC) therapy in the pediatric intensive care unit (PICU), from January to December 2017. Treatment failure was defined as clinical deterioration on HFNC therapy such that mechanical ventilation (MV) was required. Clinical parameters before and after HFNC were assessed using repeated measures analysis of variance. A total of 120 patients received HFNC therapy (21% of total admissions). Primary diagnosis were respiratory disease (50%), central nervous system diseases (14.2%), sepsis (10.8%), and postoperative …


Elective Tracheostomy In Critically Ill Children: A 10-Year Single-Center Experience From A Lower-Middle Income Country, Sidra Ishaque, Anwarul Haque, Saqib Hamid Qazi, Hamdan Mallick, Saad Nasir Jul 2020

Elective Tracheostomy In Critically Ill Children: A 10-Year Single-Center Experience From A Lower-Middle Income Country, Sidra Ishaque, Anwarul Haque, Saqib Hamid Qazi, Hamdan Mallick, Saad Nasir

Department of Paediatrics and Child Health

Objective: Tracheostomy is a commonly performed procedure amongst critically ill patients, especially in cases of prolonged mechanical ventilation (PMV). This study aimed to describe the indications, clinical characteristics, and outcomes of elective pediatric tracheostomies in critically ill children at our center.
Methods: A retrospective review of medical records of children who underwent elective tracheostomies in our pediatric intensive care unit (PICU) was conducted from January 2009 to June 2018. Data were extracted based on demographics, indications of tracheostomy, and patient outcomes. Results were reported as mean with standard deviation and as frequencies with percentage.
Results: Of the 3,200 patients admitted …


Global Burden Of Respiratory Infections Associated With Seasonal Influenza In Children Under 5 Years In 2018: A Systematic Review And Modelling Study, Xin Wang, You Li, Katherine L. O'Brien, Qalab Abbas, Syed Asad Ali, Respiratory Virus Global Epidemiology Network, Mohammad Tahir Yousafzai, Zulfiqar Ahmed Bhutta, Sajid Bashir Soofi, Anita K. M. Zaidi Apr 2020

Global Burden Of Respiratory Infections Associated With Seasonal Influenza In Children Under 5 Years In 2018: A Systematic Review And Modelling Study, Xin Wang, You Li, Katherine L. O'Brien, Qalab Abbas, Syed Asad Ali, Respiratory Virus Global Epidemiology Network, Mohammad Tahir Yousafzai, Zulfiqar Ahmed Bhutta, Sajid Bashir Soofi, Anita K. M. Zaidi

Department of Paediatrics and Child Health

Background: Seasonal influenza virus is a common cause of acute lower respiratory infection (ALRI) in young children. In 2008, we estimated that 20 million influenza-virus-associated ALRI and 1 million influenza-virus-associated severe ALRI occurred in children under 5 years globally. Despite this substantial burden, only a few low-income and middle-income countries have adopted routine influenza vaccination policies for children and, where present, these have achieved only low or unknown levels of vaccine uptake. Moreover, the influenza burden might have changed due to the emergence and circulation of influenza A/H1N1pdm09. We aimed to incorporate new data to update estimates of the global …


Paediatric Respiratory Isolation: A Challenge For A Secondary Care Hospital! A Service Innovation Project, Nadia Mohammad, Shireen Mohammad, Arjumand Sohaila, Syed Mohammad Yousuf, Adnan Khan, Rahila Meghani, Kashif Sajwani, Khalil Ahmad, Ali Faisal Saleem Dr, Pawan Vash Apr 2020

Paediatric Respiratory Isolation: A Challenge For A Secondary Care Hospital! A Service Innovation Project, Nadia Mohammad, Shireen Mohammad, Arjumand Sohaila, Syed Mohammad Yousuf, Adnan Khan, Rahila Meghani, Kashif Sajwani, Khalil Ahmad, Ali Faisal Saleem Dr, Pawan Vash

Department of Paediatrics and Child Health

Objective: The aim of this project was to broaden the secondary care hospital's scope of services and provide safe, effective and quality care for the patient presenting with measles.
Methods: Six Sigma DMAIC [define measure, analyze, improve, and control (DMAIC)] methodology was used in this quality improvement project. The quality project was started in October 2015 using a Gantt chart quality tool.
Results: The paediatric team with the support of administration of the hospital has established isolation rooms and devised a policy for the care and management of patient with airborne infection to avoid cross transmission. During six months period …


Real-World Comparison Of Two Molecular Methods For Detection Of Respiratory Viruses, Syed Asad Ali, James E. Gern, Tina V. Hartert, Kathryn M. Edwards, Marie R. Griffin, E Kathryn Mille, Tebeb Gebretsadik, Tressa Pappas, Wai Ming Lee, John V. Williams Jun 2011

Real-World Comparison Of Two Molecular Methods For Detection Of Respiratory Viruses, Syed Asad Ali, James E. Gern, Tina V. Hartert, Kathryn M. Edwards, Marie R. Griffin, E Kathryn Mille, Tebeb Gebretsadik, Tressa Pappas, Wai Ming Lee, John V. Williams

Department of Paediatrics and Child Health

Background: Molecular polymerase chain reaction (PCR) based assays are increasingly used to diagnose viral respiratory infections and conduct epidemiology studies. Molecular assays have generally been evaluated by comparing them to conventional direct fluorescent antibody (DFA) or viral culture techniques, with few published direct comparisons between molecular methods or between institutions. We sought to perform a real-world comparison of two molecular respiratory viral diagnostic methods between two experienced respiratory virus research laboratories.
Methods: We tested nasal and throat swab specimens obtained from 225 infants with respiratory illness for 11 common respiratory viruses using both a multiplex assay (Respiratory MultiCode-PLx Assay [RMA]) …