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Full-Text Articles in Organisms

Emergence Of A Multidrug-Resistant And Virulent Streptococcus Pneumoniae Lineage Mediates Serotype Replacement After Pcv13: An International Whole-Genome Sequencing Study, Stephanie W. Lo, Kate Mellor, Robert Cohen, Alba Redin Alonso, Sophie Belman, Narender Kumar, Paulina A. Hawkins, Rebecca A. Gladstone, Sadia Shakoor, Muhammad Imran Nisar Oct 2022

Emergence Of A Multidrug-Resistant And Virulent Streptococcus Pneumoniae Lineage Mediates Serotype Replacement After Pcv13: An International Whole-Genome Sequencing Study, Stephanie W. Lo, Kate Mellor, Robert Cohen, Alba Redin Alonso, Sophie Belman, Narender Kumar, Paulina A. Hawkins, Rebecca A. Gladstone, Sadia Shakoor, Muhammad Imran Nisar

Department of Pathology and Laboratory Medicine

Background: Serotype 24F is one of the emerging pneumococcal serotypes after the introduction of pneumococcal conjugate vaccine (PCV). We aimed to identify lineages driving the increase of serotype 24F in France and place these findings into a global context.
Methods: Whole-genome sequencing was performed on a collection of serotype 24F pneumococci from asymptomatic colonisation (n=229) and invasive disease (n=190) isolates among individuals younger than 18 years in France, from 2003 to 2018. To provide a global context, we included an additional collection of 24F isolates in the Global Pneumococcal Sequencing (GPS) project database for analysis. A Global Pneumococcal Sequence Cluster …


Etiology, Clinical Characteristics, And Outcome Of Infective Endocarditis: 10-Year Experience From A Tertiary Care Center In Pakistan, Sara Salim Ali, Imran Ahmed Qureshi, Ahmed Ayaz, Ainan Arshad, Awais Farhad, Bushra Jamil, Muhammad Rizwan Sohail Mar 2022

Etiology, Clinical Characteristics, And Outcome Of Infective Endocarditis: 10-Year Experience From A Tertiary Care Center In Pakistan, Sara Salim Ali, Imran Ahmed Qureshi, Ahmed Ayaz, Ainan Arshad, Awais Farhad, Bushra Jamil, Muhammad Rizwan Sohail

Medical College Documents

This study was conducted to assess the clinical characteristics, causative agents, complications, and outcomes of infective endocarditis (IE) among patients presenting to our tertiary care center over the last decade. This retrospective cohort study included all adult patients admitted to the Aga Khan University Hospital with the diagnosis of IE over a ten-year period from 2010 to 2020. Outcomes variables included complications during hospitalization, surgical intervention, mortality, and length of stay. We identified a total of 305 cases out of which 176 (58%) were males and 129 (42%) were females. The mean age of the patients was 46.9±18.8 years. 95 …


Sociodemographic, Clinical Characteristics, And Outcomes Of Influenza Pneumonia Patients Admitted In A Tertiary Care Hospital In Karachi, Pakistan: Findings From A Cross-Sectional Study, Fazal Ur Rehman, Muhammad Arslan Ahmed, Kashif Aziz, Mahmooda Jabeen Ashraf, Tazein Amber, Sumera Aziz Ali Feb 2021

Sociodemographic, Clinical Characteristics, And Outcomes Of Influenza Pneumonia Patients Admitted In A Tertiary Care Hospital In Karachi, Pakistan: Findings From A Cross-Sectional Study, Fazal Ur Rehman, Muhammad Arslan Ahmed, Kashif Aziz, Mahmooda Jabeen Ashraf, Tazein Amber, Sumera Aziz Ali

Section of Internal Medicine

Objective: To determine the sociodemographic, clinical characteristics, and outcomes of influenza pneumonia patients in tertiary care hospital, Karachi Pakistan.
Study design: A cross-sectional study.
Place and duration of study: The Aga Khan University Hospital Karachi Pakistan from January 2013 to December 2018. Methodology: All adult patients who were older than 18 years and suspected to have viral pneumonia were included in the study. Data were abstracted on 105 patients and were entered on preformed proforma after reviewing the files of patients.
Results: Ninety-four (89.5%) patients were influenza positive and 15.2% (n=16) had been vaccinated. Around 92.4% (n=97), 81.9% (n=86) and …


Response Of Extensively Drug Resistant Salmonella Typhi To Treatment With Meropenem And Azithromycin, In Pakistan, Sonia Qureshi, Abdullah B. Naveed, Mohammad Tahir Yousafzai, Khalil Ahmad, Sarwat Ansari, Heeramani Lohana, Aiman Mukhtar, Farah Naz Qamar Oct 2020

Response Of Extensively Drug Resistant Salmonella Typhi To Treatment With Meropenem And Azithromycin, In Pakistan, Sonia Qureshi, Abdullah B. Naveed, Mohammad Tahir Yousafzai, Khalil Ahmad, Sarwat Ansari, Heeramani Lohana, Aiman Mukhtar, Farah Naz Qamar

Department of Paediatrics and Child Health

Introduction: Salmonella Typhi is one of the leading health problems in Pakistan. With the emergence of extensively drug resistant (XDR) Salmonella Typhi, treatment options are limited. Here we report the clinical manifestations and the response to treatment of patients with XDR Typhoid fever. The patients were treated with either Meropenem or Azithromycin or a combination of both.
Methods: We reviewed the records of culture confirmed XDR typhoid who visited Aga Khan University Hospital (AKUH), Karachi and Aga Khan Secondary Care Hospital, Hyderabad from April 2017 to June 2018. Symptoms developed during disease, unplanned treatment extension and complications developed while on …


A Race Against Time: Reduced Azithromycin Susceptibility In Salmonella Enterica Serovar Typhi In Pakistan, Junaid Iqbal, Irum Fatima Dehraj, Megan E. Carey, Zoe A. Dyson, Denise Garrett, Jessica C. Seidman, Furqan Kabir, Senjuti Saha, Stephen Baker, Farah Naz Qamar Jul 2020

A Race Against Time: Reduced Azithromycin Susceptibility In Salmonella Enterica Serovar Typhi In Pakistan, Junaid Iqbal, Irum Fatima Dehraj, Megan E. Carey, Zoe A. Dyson, Denise Garrett, Jessica C. Seidman, Furqan Kabir, Senjuti Saha, Stephen Baker, Farah Naz Qamar

Department of Paediatrics and Child Health

Antimicrobial resistance is an ongoing issue in the treatment of typhoid fever. Resistance to first-line antimicrobials and extensively drug resistant (XDR) Salmonella Typhi isolates in Pakistan have left azithromycin as the only remaining effective oral treatment. Here, we report the emergence of organisms with a single point mutation in acrB gene, implicated in azithromycin resistance, in a S. Typhi isolate from Pakistan. The isolation of this organism is worrisome and highlights the significance of the introduction of typhoid conjugate vaccine in South Asia.
Importance: The emergence of XDR Salmonella Typhi in Pakistan has left azithromycin as the only viable oral …


Trichosporon Species And Fusarium Species As A Cause Of Empyema Thoracis In A Diabetic Patient, Nousheen Iqbal, Muhammad Ammar, Muhammad Irfan, Kauser Jabeen Jul 2020

Trichosporon Species And Fusarium Species As A Cause Of Empyema Thoracis In A Diabetic Patient, Nousheen Iqbal, Muhammad Ammar, Muhammad Irfan, Kauser Jabeen

Section of Pulmonary & Critical Care

Of late, fungal infections are increasingly being recognized in diabetic patients. Here we present a case of polymicrobial fungal empyema due to Trichosporon species and Fusarium species developed after community-acquired pneumonia in a diabetic patient. Trichosporon species are basidiomycetous yeast and Fusarium species are soil saprophytes with a worldwide distribution. Fungal empyema cases are rare and are mostly caused by Aspergillus and Candida species. Polymicrobial fungal empyema with Trichosporon species and Fusarium species has not been reported previously. Our patient was successfully treated with antifungal therapy. This case highlights that fungal empyema should be considered in diabetic patients especially if …