Background:

Salmonella enteric serotype Typhi has created a significant therapeutic problem as these strains have developed resistance to the commonly used antimicrobials for the treatment of typhoid fever.

Objectives:

To assess the clinical profile and sensitivity patterns to anti-typhoid drugs.

Materials and Methods:

A retrospective analysis of 106 culture-positive typhoid cases admitted in a tertiary care hospital during the years 2005-2008.

Results:

Records of 106 patients were evaluated, 83 (78.3%) males and 23 (21.7%) females. Fever was present in all patients. Headache in 63 (59.4%) patients and generalized body ache in 53 (32.5%) patients were the most common symptoms, while spleenomegaly in 47 (44.3%) patients and hepatomegaly in 42 (39.6%) patients were the common presenting signs. A maximum sensitivity of 96.6% was observed with cephalosporins, whereas a resistance of 29.2% was seen with fluoroquinolones.

Conclusion:

A high degree of sensitivity was noted to chloramphenicol, ampicillin and sulphonamides, showing a trend of roll-back of sensitivity to conventional antibiotics.

Brucellosis is a chronic infection produced by members of the Brucella family. Diagnosis of this condition requires either isolation of the organism in culture or positive serological tests.

We describe a 27-year-old male admitted as a case of pyrexia of unknown origin (PUO), who tested negative for Brucella IgM ELISA test on preliminary evaluation but was subsequently diagnosed on the strength of positive blood and bone marrow cultures to be a case of brucellosis secondary to Brucella suis infection. In addition to highlighting the pathogenic potential of an unusual organism, this case demonstrates the unreliability of standard serological tests based on the Brucella melitensis antigen for infection with other species of Brucella.

Investigation of in vitro/in vivo behavior of fast-dissolving tablets containing solid dispersions of pioglitazone hydrochloride (PIO) is the focus of the present research work. The effect of various hydrophilic polymers on the aqueous solubility of PIO was studied. Poly vinyl pyrrolidine K 30 (PVPK 30) carrier was selected and solid dispersions were prepared by various methods. Evaluation of solid dispersion for percentage yield, drug content, solubility, and Fourier Transform Infrared-indicated kneading method was most appropriate. Furthermore, the dissolution studies exhibited an enhancement in drug dissolution. One-way ANOVA of in vitro data suggested that there was significant (P ≤ 0.05) difference in dissolution profile of PIO solid dispersion when compared with pure drug and commercial product. Infrared spectroscopy, differential scanning calorimetry, and powder X-ray diffraction performed on solid dispersion indicated lack of physicochemical interaction between the drug and the carrier. The selected formulation is compressed into fast-dissolving tablets which were further evaluated for tablet properties and in vitro drug release. In vivo studies of pure drug, selected formulation, and marketed product were carried out in male Wistar rats and pharmacokinetic parameters were calculated using Kinetica software 2000. The best formulation has shown Tmax of 1 hour which was highly significant (P < 0.01) when compared with pure drug and marketed formulation. Therefore, the solid dispersions prepared by kneading method using PVPK 30 as hydrophilic carrier can be successfully used for improvement of dissolution of PIO and resulted in faster onset of action as indicated by in vivo studies.

Ischemic stroke following viper bite is rare. We report a case of posterior circulation ischemic infarction following viper bite in a previously healthy woman. Soon after being bitten by the snake on the left leg, she developed local redness, echymosis and one hour later became drowsy. On examination she had skew deviation of eyes and down gaze preference, generalized hypotonia. A CT scan of brain showed infarcts in cerebellar hemispheres and occipital lobes on both sides and that was confirmed on magnetic resonance imaging of brain. Her coagulation profile was deranged. Most common and serious central nervous system complication following snake bite is intracranial hemorrhage. Ischemic stroke commonly involves anterior circulation. Bilateral cerebellar and occipital infraction is not yet reported in literature. Exact cause for the development of infarction is not clear. The possible mechanisms of infarction in this scenario are discussed. Patient was treated with anti-snake venom and showed a good recovery. Early imaging and early treatment with anti-snake venom is important for a favorable outcome.

Organophosphate (OP) poisoning is common in India. Only few case reports of parenteral OP poisoning have been described. We report a case of self-injected methyl parathion poisoning, presenting after four days with seizure, altered sensorium, and respiratory distress which posed a diagnostic and therapeutic dilemma. Despite nonavailability of history of OP poisoning, he was treated based on suspicion and showed a good clinical response to treatment trial with atropine and pralidoxime, and had a successful recovery. Atypical presentations may be encountered following parenteral administration of OP poison, and even a slight suspicion of this warrants proper investigations and treatment for a favorable outcome. Persistently low plasma cholinesterase level is a useful marker for making the diagnosis.

Background:

India is one of the seven identified countries in the South-East Asia region regularly reporting dengue fever (DF)/dengue hemorrhagic fever (DHF) outbreaks and may soon transform into a major niche for dengue infection in the future with more and more new areas being struck by dengue epidemics

Objective:

To study the clinical manifestations, trend and outcome of all confirmed dengue cases admitted in a tertiary care hospital.

Study Design:

Record-based study conducted in a coastal district of Karnataka. Required data from all the laboratory confirmed cases from 2002 to 2008 were collected from Medical Records Department (MRD) and analyzed using SPSS 13.5 version.

Results:

Study included 466 patients. Majority were males, 301(64.6%) and in the and in the age group of 15-44 years, 267 (57.5%). Maximum number of cases were seen in 2007, 219 (47%) and in the month of September, 89 (19.1%). The most common presentation was fever 462 (99.1%), followed by myalgia 301 (64.6%), vomiting 222 (47.6%), headache 222 (47.6%) and abdominal pain 175 (37.6%). The most common hemorrhagic manifestation was petechiae 84 (67.2%). 391 (83.9%) cases presented with dengue fever, 41 (8.8%) dengue hemorrhagic fever, and 34 (7.3%) with dengue shock syndrome. Out of 66 (14.1%) patients who developed clinical complications, 22 (33.3%) had ARDS and 20 (30.3%) had pleural effusion. Deaths reported were 11(2.4%).

Conclusion:

Community awareness, early diagnosis and management and vector control measures need to be strengthened, during peri-monsoon period, in order to curb the increasing number of dengue cases.

Hematological abnormalities are frequent among human immunodeficiency virus (HIV)-infected patients and may be directly attributable to the virus or may be caused by opportunistic infections, neoplasms or drugs that cause bone marrow suppression or hemolysis. Pure red cell aplasia (PRCA) is an uncommon hematological disorder that causes anemia. We report a 37-year-old male with HIV infection who developed PRCA 6 weeks after commencing Zidovudine and recovered following cessation of the drug. This is the first case of Zidovudine-induced PRCA reported from the Indian subcontinent.