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Year :2017
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Month :
September-October
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Volume :
6
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Issue :
4
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Page :
RO52 - RO56
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Role of Ultrasonography in Diagnosis and Evaluation of Dengue Fever
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Correspondence Address :
Harshavardhan Nagolu, Vijay Kumar Papireddygari, Pradeepreddy Vanki Reddy,
Raghuramulu Naik Ramavath, Khader Faheem Mohammed,
Dr. Harshavardhan Nagolu,
19-41-S5-1192, Jayanagar, Behind Hotel Bliss,
Tirupati-517501, Andhra Pradesh, India.
E-mail: drharsha003@gmail.com
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Introduction: Introduction: Dengue Fever (DF) is endemic to Southeast Asian region and poses a major public health problem with increasing incidence of epidemics over the past few years.
Aim: This study intends to evaluate ultrasonographic findings in patients with DF during an epidemic in south India and their accuracy in diagnosis.
Materials and Methods: This is a prospective observational study performed in tertiary care hospital in Tirupati, Andhra Pradesh, India. A total 310 patients seropositive for dengue, referred to Radiology department for sonography were screened for ascites, gall bladder wall thickening, pleural effusion, pericardial effusion, hepatomegaly and splenomegaly. These findings were correlated with patient demographics, serological tests for dengue and platelet count.
Results: Mean age of the study population was 48.9 years. The male: female ratio was 1.46:1. Total 302 patients (97.4%) had at least one positive ultrasound finding supportive of DF. Ascites (93%) was the most common finding, followed by right pleural effusion (78.7%), gall bladder wall thickening (64.8%), left and bilateral pleural effusion (64.1%), splenomegaly (42.6%) and hepatomegaly (28.0%). Patients were classified into four groups based on degree of thrombocytopenia. Ascites was the most common finding in all the groups of patients. Gall bladder wall thickening was seen in 63.2%, 70.5%, 73.0% and 27.7% in four groups respectively. Ascites was the most sensitive finding, while gall bladder wall thickening was the most specific finding. This study showed statistically significant correlation of ultrasound findings with platelet counts (p=0.00001). No statistically significant correlation was noted between age group of the patients and sonographic findings (p=0.908).
Conclusion: Constellation of sonographic findings like ascites, gall bladder wall thickening, pleural effusion, hepatomegaly and splenomegaly, when used together, are Useful not only in early diagnosis of the disease, but also in assessment of severity of the disease.
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