Publications by authors named "Shivaprakash K"

Most new infectious diseases emerge when pathogens transfer from animals to humans. The suspected origin of the COVID pandemic in a wildlife wet market has resurfaced debates on the role of wildlife trade as a potential source of emerging zoonotic diseases. Yet there are no studies quantitatively assessing zoonotic disease risk associated with wildlife trade.

View Article and Find Full Text PDF

A number of guidelines are available for the management of congenital heart diseases (CHD) from infancy to adult life. However, these guidelines are for patients living in high-income countries. Separate guidelines, applicable to Indian children, are required when recommending an intervention for CHD, as often these patients present late in the course of the disease and may have coexisting morbidities and malnutrition.

View Article and Find Full Text PDF

Background And Aims: Kin selection theory predicts that a parent may minimize deleterious effects of competition among seeds developing within ovaries by increasing the genetic relatedness of seeds within an ovary. Alternatively, the number of developing seeds could be reduced to one or a few. It has also been suggested that single or few seeded fruits may be correlated with small flowers, and multi-ovulate ovaries or many seeded fruits may be associated with large flowers with specialized pollination mechanisms.

View Article and Find Full Text PDF

We present the case of a 2-year-old girl with congenital stenosis of the left inferior pulmonary vein associated with a large perimembranous ventricular septal defect. The child underwent repair of the left inferior pulmonary vein with autologous left atrial appendage as a pedicled tube, followed by closure of the ventricular septal defect. Important technical steps to minimize the restenosis rate are highlighted.

View Article and Find Full Text PDF

Objectives: Closure of multiple muscular ventricular septal defects (VSDs) remains a challenge because of anatomical complexity.

Methods: We mapped all the VSDs using en face reconstruction of the right ventricular septal surface through echocardiography and then performed an 'Intraoperative Customized Double-Patch Device' technique to surgically close them in 39 patients (male:female = 25:14). The median age of the patients was 6 months (2 months-10 years), and mean weight was 5.

View Article and Find Full Text PDF

Transposition of the great arteries (TGA) with total anomalous pulmonary venous connection (TAPVC) is a rare association. Very few such cases have been reported. Among them 1 patient underwent anatomic repair.

View Article and Find Full Text PDF

The closure of atrial septal defects through right-sided limited posterior thoracotomy has been well established in selected subsets. We present a case of large ostium secundum atrial septal defect, pulmonary valvar stenosis, absent right superior vena cava, and isolated left superior vena cava draining to right atrium via coronary sinus. The child successfully underwent total correction through limited posterior thoracotomy with necessary modifications of intraoperative steps.

View Article and Find Full Text PDF

Conservation managers and policy makers are often confronted with a challenging dilemma of devising suitable strategies to maintain agricultural productivity while conserving endemic species that at the early stages of becoming pests of agricultural crops. Identification of environmental factors conducive to species range expansion for forecasting species distribution patterns will play a central role in devising management strategies to minimize the conflict between the agricultural productivity and biodiversity conservation. Here, we present results of a study that predicts the distribution of , a snail endemic to the Western Ghats biodiversity hotspot, which is becoming a pest in cardamom () plantations.

View Article and Find Full Text PDF

Fontan operation and importance of fenestration in the treatment of unusual and complex forms of double outlet right ventricle (DORV) are well established. Nonetheless, rarely, the creation of fenestration becomes challenging in complex morphologies. We present one such child with situs solitus, dextrocardia, DORV, hypoplastic right ventricle, large ventricular septal defect, severe pulmonic stenosis, extremely small right atrium and left juxtaposed atrial appendages, who underwent Fontan operation.

View Article and Find Full Text PDF

We report a successful surgical management of a case presented with a combination of aortopulmonary window (APW) with large ventricular septal defect (VSD) amounting to a single ventricle, with a view to highlight technical considerations during staged single-ventricle palliation.

View Article and Find Full Text PDF

Background And Question: The harvesting of medicinal plants from wild sources is escalating in many parts of the world, compromising the long-term survival of natural populations of medicinally important plants and sustainability of sources of raw material to meet pharmaceutical industry needs. Although protected areas are considered to play a central role in conservation of plant genetic resources, the effectiveness of protected areas for maintaining medicinal plant populations subject to intense harvesting pressure remain largely unknown. We conducted genetic and demographic studies of Nothapodytes nimmoniana Graham, one of the extensively harvested medicinal plant species in the Western Ghats biodiversity hotspot, India to assess the effectiveness of protected areas in long-term maintenance of economically important plant species.

View Article and Find Full Text PDF

Purpose: The purpose of this study is to observe the effect of intraoperative topical application of mitomycin C (MMC) on the results of endoscopic dacryocystorhinostomy.

Design: This is a prospective, randomized, controlled, single-blind study.

Settings: Hospitalized treatment was done in a tertiary medical college hospital and research center that deals with a predominantly rural population.

View Article and Find Full Text PDF

Background: A surface reconstruction of the location and dimensions of muscular ventricular septal defects (VSDs) on right ventricular (RV) septal surface could serve as a better guide to surgical closure amid different classifications and confusing terminologies.

Methods: We reconstructed muscular VSD requiring surgery on an en-face view of the RV septal surface from echocardiographic orthogonal views in 34 consecutive patients. The location, dimensions of the defects, and relation to various RV septal landmarks are illustrated as a diagram.

View Article and Find Full Text PDF

Objective: To illustrate the incidence, the different age group, varied clinical presentation, incremental risk factors for surgery and follow-up results from this part of the world.

Experimental Design: Retrospective study with follow-up from 3 months to 5 years.

Setting: Institutional practice with hospitalised care.

View Article and Find Full Text PDF

From 1981 to 1992, 13 male and 7 female patients underwent surgical correction for ruptured aneurysms of sinus of valsalva. A total surgical experience of 22 procedures including 2 reoperations is presented, accounting for 1.37% of open heart surgery for congenital heart disease at PGIMER Chandigarh.

View Article and Find Full Text PDF

Coronary artery narrowing secondary to myocardial bridging, with consequent clinical manifestation, is a known but uncommon entity. A modified supra-arterial myotomy in a case of myocardial bridge causing medication-refractory angina is described.

View Article and Find Full Text PDF