Myroides Species: A Rare Cause of Endocarditis.

Myroides species are not part of human flora and are commonly found in soil and water. They are considered as low-grade pathogens. Genera Myroides are members of the family Flavobacteriaceae and comprise a group of yellow-pigmented, oxidase positive, non-motile, non-fermentative Gram-negative bacilli. However nowadays, they have been identified as causative agents in urinary tract infections, pneumonia, meningitis, fasciitis, and ventriculitis in immunocompromised patients, and a few life-threatening infections have been reported in immunocompetent individuals also. We present a case 32-year-old female known the case of rheumatic heart disease that underwent valve replacement around 17 years back. She was admitted with complaints of breathlessness since 3 days in an emergency for evaluation. She underwent redo mitral valve replacement. Intraoperatively, vegetations were present on the mitral valve. Subsequently, her blood culture grew Myroides spp. She responded well to treatment and discharged.

Cardiac Autonomic Activity in Overweight and Underweight Young Adults.

Body mass has been associated with changes in the cardiac autonomic activity. The purpose of this study was to evaluate the cardiac autonomic activity by measuring heart rate variability (HRV) in underweight and overweight young adults. Frequency-domain HRV parameters (TP, LF/ HF ratio, LF and HF in absolute and normalized units, where TP – total power, LF – low frequency power and HF = high frequency power) were measured in 124 subjects (mean age 19±1 yr), grouped according to their BMI into underweight [UW, n=12], normal weight [NW, n= 71] and overweight [OW, n=41]. BP (blood pressure) and heart rate were recorded and total body fat was calculated. The groups were similar by age and significantly differed by BMI, body fat (kg), body fat %. OW found to have higher LF in normalised units compared to NW (P<0.05). The OW had higher LF, lower HF when expressed in absolute units than NW with no statistical significance. Though not statistically significant, the LF/HF ratio, the index of sympathovagal balance was higher in OW. The UW had lower TP, LF, HF than NW with no statistical significance. The results indicate HRV is decreased in overweight young adults suggesting sympathovagal imbalance. HRV is unaltered in underweight group.