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A study of prolonged pyrexia in Dhaka
S A Haq1, M N Alam, S M Hossain
1Department of Medicine, Institute of Postgraduate Medicine & Research, Dhaka.
This study from Dhaka examined 212 patients with prolonged fever to determine the causes and best diagnostic methods. It found that infections, especially tuberculosis, were the most common cause. Clinical features and invasive procedures were key to diagnosis. The study also showed that mild fever should not prevent necessary investigations. Neoplasms and connective tissue disorders were also found to cause prolonged fever. The authors suggest using clinical and laboratory data together for better diagnosis.
Area of Science:
- Infectious disease epidemiology
- Clinical diagnostic methods
- Thermal physiology in tropical medicine
Background:
Prolonged fever remains a diagnostic challenge in tropical regions. Prior work has shown that fever patterns vary by geography and etiology. This paper's contribution lies in its detailed diagnostic evaluation of 212 cases from Dhaka. No prior work had resolved the specific frequency of tuberculosis as a cause in this population. The study addresses a gap in understanding fever causation in South Asia. Established knowledge includes fever's association with infections and neoplasms. This paper adds data on diagnostic yield from invasive techniques. It also clarifies that habitual hyperthermia is rare in this cohort. The study provides new insights into fever causation patterns in Dhaka.
Purpose Of The Study:
The research aimed to determine the causes of prolonged fever in Dhaka. It focused on diagnostic methods and disease frequency. The study sought to identify the most common infections and non-infectious causes. It examined how clinical features and investigations contribute to diagnosis. The goal was to guide diagnostic approaches in similar settings. The paper aimed to clarify misconceptions about habitual hyperthermia. It also sought to quantify the role of invasive procedures in diagnosis. The study aimed to inform clinical decision-making in fever management.
Main Methods:
The research used a prospective design at a Dhaka medical institute. It evaluated 212 patients with prolonged fever. Clinical assessments included organ-specific symptoms. Laboratory tests were used alongside imaging techniques. Microbiological and serological methods were applied. Invasive procedures were performed when needed. Laparotomy was used in five cases for diagnosis. Data collection included clinical, lab, and procedural findings.
Main Results:
Infectious diseases caused 63.21% of prolonged fevers. Tuberculosis was the most frequent infection at 24.53%. Enteric fever and visceral leishmaniasis followed at 12.74% and 9.43%. Neoplasms accounted for 12.74% of cases. Leukemias were the most common neoplasm. Connective tissue disorders made up 10.85% of cases. SLE was the most frequent disorder. Invasive procedures diagnosed 42% of cases. Clinical features provided clues in 52% of patients.
Conclusions:
The study found infections as the most frequent cause of prolonged fever. Tuberculosis was the leading infectious cause in Dhaka. The authors suggest that diagnostic evaluation should not be avoided due to fever alone. They emphasize the value of invasive procedures when needed. The findings indicate that habitual hyperthermia is rare in this population. The authors propose that fever duration should not delay necessary investigations. They note that atypical presentations often lead to prolonged fever. The study supports the use of clinical and paraclinical data for diagnosis.
Frequently Asked Questions
Tuberculosis was the most frequent cause, affecting 24.53% of patients.
Invasive procedures provided a diagnosis in 42% of cases, showing high diagnostic yield.
The study found habitual hyperthermia was rare, so mild fever should not delay investigations.
Imaging techniques helped diagnose 24% of cases, complementing clinical findings.
Leukemias were the most frequent neoplasm causing prolonged fever.
The authors proposed using clinical features and paraclinical data for diagnosis.