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Biomedical subjects

R Mukerji

Publications and source records attributed to R Mukerji.

4 recordsLinked to original sources
PubMed2005

Mandibular fractures: Historical perspective.

The principles of the treatment of mandibular fractures have changed recently, although the objective of re-establishing the occlusion and masticatory function remains the same. Splinting of teeth is an old way of immobilising fractures but the advent of modern biomaterials has changed clinical practice towards plating the bone and early restoration of function. We present a brief historical overview of techniques and systems that have been used for stabilisation of mandibular fractures.

External Fixators↗
PubMed1999

Relation of occupation to presence or absence of coronary artery disease: an angiographic study.

To determine the relation of occupation to the presence or absence of coronary artery disease (CAD) and cardiovascular risk factors, the authors compared the occupations of a series of 116 consecutive patients who underwent coronary angiography and were found to have normal or near-normal coronary arteries (< 30% stenosis of all major coronary arteries) with those of a series of 116 patients with moderate to severe CAD (> or = 60% stenosis of one or more major coronary artery). The usual lifetime occupational status of each study participant was classified as sedentary, intermediate, or strenuous. The presence of the usual cardiovascular risk factors in the patients was also recorded. There was no significant difference in the frequency of the three occupational categories between the two groups (those with or without CAD) when subjects of all ages were considered or when subjects less than 40 years or more than 60 years old were considered. However, the results indicate that among 40-60-year-old individuals CAD occurred significantly more frequently in those engaged in strenuous occupations than in those engaged in sedentary occupations. Cardiovascular risk factors occurred significantly more frequently in patients with CAD than in those with normal coronary arteries and in those engaged in strenuous occupations compared with those in sedentary occupations.

Adult↗
PubMed1998

Diminished short-term heart rate variability predicts inducible ventricular tachycardia.

PURPOSE: The purpose of this study is to determine whether short-term heart rate variability (HRV) can be used successfully to predict inducible ventricular tachycardia (VT). METHODS: A high-speed (300 mm/s) electrocardiographic recording was obtained in 32 patients in the supine position prior to programmed ventricular stimulation. Beat-to-beat RR intervals (in milliseconds) were derived from an 11-beat strip (10 RR intervals). Logistic regression was used to study the relationship between several variables and a dichotomous dependent variable (inducible, clinical, or electrocardiographic evidence of VT). RESULTS: Of 32 patients, 12 had inducible VT (inducible VT group) and 20 had no clinical or electrocardiographic evidence of VT (control group). Mean short-term HRV values were significantly lower in those with inducible VT than in the control group in all patients (25+/-15 ms, n=12 vs 67+/-22 ms, n=20; p<0.0001) and in patients with coronary artery disease or congestive heart failure or both (22+/-13 ms, n=11 vs 63+/-23 ms, n=11; p<0.0001). For the group as a whole, short-term HRV was < or =50 ms in 11 of 12 patients (92%) with inducible VT, but was < or =50 ms in only 3 of 20 control subjects (15%; p<0.001). As a result of a stepwise selection procedure conducted within the logistic regression, only the short-term HRV was found to be predictive of inducible VT (p<0.0001). CONCLUSION: Short-term HRV is significantly lower in subjects with inducible VT than in those without clinical or electrocardiographic evidence of VT. The probability of developing sudden death increases substantially when short-term HRV decreases below 50 ms.

Cardiac Pacing, Artificial↗