43 research outputs found
Distribution of Macrozoobenthos in River Narmada near Water Intake Point
Rivers support vast biodiversity of flora and fauna, provide food and shelter to organisms that thrive in. Macrozoobenthos play an important role in aquatic ecosystem as primary and secondary consumers and form the trophic relationships include those that feed on them directly or indirectly like fish and bird population. Presently, the study was carried out on a selected reach of river Narmada near water intake point. Aim of the study was to assess the distribution of macrozoobenthos near water intake point on river Narmada. Loss in the distribution of macrozoobenthos fauna was recorded in lower reaches and in front of water intake point which indicates that ecological conditions are degrading and in near future situation can be alarming in the respect of ecology. Keywords: River Narmada, Macrozoobenthos, Water intake point
Distribution of Macrophytes in River Narmada near Water Intake Point
Rivers have always been the most important fresh water resources. Along the banks of rivers ancient civilizations have flourished and still most of the developmental activities are dependent. Rivers support vast biodiversity of flora and fauna which provide food & shelter to aquatic organisms. Aquatic macrophytes are group of large macroscopic photosynthetic organisms usually growing with their roots in soil or water. Macrophytes provide habitat to aquatic organisms also help in maintaining water quality, nutrient cycling and stabilizing river banks. Present study was carried out on the distribution of macrophytes near water intake point in river Narmada. Present study depicted about the loss of macrophytic distribution in lower reaches of water intake point in river Narmada in conjunction with some physicochemical parameters of water quality. Key Words: River Narmada, Water Intake Point, Aquatic Macrophytes, Water quality
Atrial Septal Defects Accelerate Pulmonary Hypertension Diagnoses in Premature Infants
Between 4 and 16% of extremely premature infants have late pulmonary hypertension (PH) (onset >30 days of life), and infants with PH have a higher risk of tracheostomy and death. Atrial septal defects (ASD) increase pulmonary blood flow and may promote PH in at-risk infants. The objective of this study was to determine if infants with ASD develop PH sooner than those without ASD. Infants who were born at < 32 weeks' gestation, with an echocardiogram on day of life > 30, and without congenital anomalies were included. Infants with and without ASD were evaluated for the time to PH diagnosis, defined as the day of the first echocardiogram that showed PH. A multivariable model with ASD and significant variables on PH and a Cox proportional hazard model evaluating time to PH was determined. Of the 334 infants with echocardiograms, 57 had an ASD and 26% of these developed PH vs. 12% without ASD (p = 0.006). Infants with PH had lower gestational age (25.2 vs. 26.2 weeks, p = 0.005), smaller birthweight (699 vs. 816 gm, p = 0.001), and more prematurity complications than infants without PH. More PH infants had maternal African-American race (63.9 vs. 36.1%), right ventricular dysfunction (23.9 vs. 3.2%, p < 0.001), right ventricular dilation (52.1 vs. 8.6%, p < 0.001), or right ventricular hypertrophy (51.2 vs. 10.1%, p < 0.001), than infants without PH. At 150 days of life, 78.1% (95% CI 64.6–86.9%) of infants with ASD survived without PH, compared with 90.9% (95% CI 86.7–93.8%) of infants without ASD, and the unadjusted hazard for development of PH for infants with ASD was 2.37 (95% CI 1.29–4.36). When significant clinical variables were controlled, infants with ASD had a 2.44-fold (95% CI 1.27–4.68) increase in PH, compared with infants without ASD. Most PH in infants with or without ASD was diagnosed by day of life 150, but infants with ASD had an over 2-fold increased hazard for PH during their neonatal hospitalization. Premature infants with ASD should be followed closely for PH development and further studies to investigate the optimal timing of closure are needed
Trends in Caffeine Use and Association between Clinical Outcomes and Timing of Therapy in Very Low Birth Weight Infants
Objective: To examine the effect of early initiation of caffeine therapy on neonatal outcomes and characterize the use of caffeine therapy in very low birth weight (VLBW) infants.
Study design: We analyzed a cohort of 62 056 VLBW infants discharged between 1997 and 2010 who received caffeine therapy. We compared outcomes in infants receiving early caffeine therapy (initial dose before 3 days of life) and those receiving late caffeine therapy (initial dose at or after 3 days of life) through propensity scoring using baseline and early clinical variables. The primary outcome was the association between the timing of caffeine initiation and the incidence of bronchopulmonary dysplasia (BPD) or death.
Results: We propensity score–matched 29 070 VLBW infants at a 1:1. Of infants receiving early caffeine therapy, 3681 (27.6%) died or developed BPD, compared with 4591 infants (34.0%) receiving late caffeine therapy (OR, 0.74; 99% CI, 0.69-0.80). Infants receiving early caffeine had a lower incidence of BPD (23.1% vs 30.7%; OR, 0.68; 95% CI, 0.63-0.73) and a higher incidence of death (4.5% vs 3.7%; OR, 1.23; 95% CI, 1.05-1.43). Infants receiving early caffeine therapy had less treatment of patent ductus arteriosus (OR, 0.60; 95% CI, 0.55-0.65) and a shorter duration of mechanical ventilation (mean difference, 6 days; P \u3c .001).
Conclusion: Early caffeine initiation is associated with a decreased incidence of BPD. Randomized trials are needed to determine the efficacy and safety of early caffeine prophylaxis in VLBW infants. (J Pediatr 2014; 164:992-8)
Trends in Caffeine Use and Association between Clinical Outcomes and Timing of Therapy in Very Low Birth Weight Infants
Objective: To examine the effect of early initiation of caffeine therapy on neonatal outcomes and characterize the use of caffeine therapy in very low birth weight (VLBW) infants.
Study design: We analyzed a cohort of 62 056 VLBW infants discharged between 1997 and 2010 who received caffeine therapy. We compared outcomes in infants receiving early caffeine therapy (initial dose before 3 days of life) and those receiving late caffeine therapy (initial dose at or after 3 days of life) through propensity scoring using baseline and early clinical variables. The primary outcome was the association between the timing of caffeine initiation and the incidence of bronchopulmonary dysplasia (BPD) or death.
Results: We propensity score–matched 29 070 VLBW infants at a 1:1. Of infants receiving early caffeine therapy, 3681 (27.6%) died or developed BPD, compared with 4591 infants (34.0%) receiving late caffeine therapy (OR, 0.74; 99% CI, 0.69-0.80). Infants receiving early caffeine had a lower incidence of BPD (23.1% vs 30.7%; OR, 0.68; 95% CI, 0.63-0.73) and a higher incidence of death (4.5% vs 3.7%; OR, 1.23; 95% CI, 1.05-1.43). Infants receiving early caffeine therapy had less treatment of patent ductus arteriosus (OR, 0.60; 95% CI, 0.55-0.65) and a shorter duration of mechanical ventilation (mean difference, 6 days; P \u3c .001).
Conclusion: Early caffeine initiation is associated with a decreased incidence of BPD. Randomized trials are needed to determine the efficacy and safety of early caffeine prophylaxis in VLBW infants. (J Pediatr 2014; 164:992-8)
Trends in Caffeine Use and Association between Clinical Outcomes and Timing of Therapy in Very Low Birth Weight Infants
To examine the effect of early initiation of caffeine therapy on neonatal outcomes and characterized the use of caffeine therapy in very-low-birth-weight (VLBW) infants
Utility of echocardiography in predicting mortality in infants with severe bronchopulmonary dysplasia
This article is made available for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.Objective: To determine the relationship between interventricular septal position (SP) and right ventricular systolic pressure (RVSP) and mortality in infants with severe BPD (sBPD).
Study design: Infants with sBPD in the Children's Hospitals Neonatal Database who had echocardiograms 34-44 weeks' postmenstrual age (PMA) were included. SP and RVSP were categorized normal, abnormal (flattened/bowed SP or RVSP > 40 mmHg) or missing.
Results: Of 1157 infants, 115 infants (10%) died. Abnormal SP or RVSP increased mortality (SP 19% vs. 8% normal/missing, RVSP 20% vs. 9% normal/missing, both p < 0.01) in unadjusted and multivariable models, adjusted for significant covariates (SP OR 1.9, 95% CI 1.2-3.0; RVSP OR 2.2, 95% CI 1.1-4.7). Abnormal parameters had high specificity (SP 82%; RVSP 94%), and negative predictive value (SP 94%, NPV 91%) for mortality.
Conclusions: Abnormal SP or RVSP is independently associated with mortality in sBPD infants. Negative predictive values distinguish infants most likely to survive
IMPACT OF AM FUNGI ON DEHYDROGENASE ACTIVITY IN POLLUTED SOIL
ABSTRACT: Rhizoremediation is a technique which uses the rhizospheric microbiota to remediate the pollutants. Dehydrogenase enzyme is considered to exist in soil as integral part of intact cells. Dehydrogenase activity in soils provide correlative information on the biological activity and microbial populations in the soil. When AM fungal spores were added to the phytoremediating legume plants the dehydrogenase activity tends to increase up to levels of control where no pollutant was present. The highest increase was found in Cicer arientinum on addition of AM fungal spores i.e. 16.4 µg INTF g -1 soil in control but rhizoremediated treatment gave increased activity up to 40.7µg INTF g -1 soil. Phaseolus mungo shows a very minimal difference in all three treatments
Anesthetic challenges for pheochromocytoma surgery in pediatric patients: A case series
Pheochromocytoma in children is an exceptionally uncommon cause of hypertension in this age group. These tumors pose a significant threat of adverse cardiovascular events during the perioperative phase. In this article, we describe three cases of pediatric pheochromocytoma to shed light on the difficulties associated with administering anesthesia to patients with this condition. The foundations for successful perioperative outcomes include preoperative blood pressure control, extensive intraoperative hemodynamic evaluation, and appropriate coordination with surgeons