Garima Dahiya - Academia.edu (original) (raw)

Papers by Garima Dahiya

Circulation

Introduction: The evolution of pacemaker/ICD safety in the magnetic field has triggered considera... more Introduction: The evolution of pacemaker/ICD safety in the magnetic field has triggered considerable interest in more clinical routine use. However, many limitations to widespread adoption of this seemingly implausible idea just a few years ago remain: unresolved impact of the high magnetic field, RF amplitude and oscillatory forces on electronics with possible high field damage to capacitor, solenoid and microcircuitry. However, given recent vender refinements over the last 10 years, we hypothesized that the impact on such circuitry may be far less than expected. Method: Consecutive interrogation of 940 pts who underwent clinically indicated MRI were evaluated over 5 years. This cohort was comprised of neuro/neurosurgical (72%), orthopedic (11%) and cardiac (17%) cases. Routine interrogation was performed within 10 min of entry into the bore of a dedicated Cardiac MRI (GE, 1.5T, WI). As well, reinterrogation was performed within 10 min of departure MRI (average 21±12min). At the ti...

The Journal of Heart and Lung Transplantation

International Journal of Environment and Climate Change

The present investigation was carried out to assess the soil nutrient status under five year old ... more The present investigation was carried out to assess the soil nutrient status under five year old popular plantation. In the study, five barley varieties (BH 946, BH 959, BH 393, BH 885 and BH 902) were sown with already established poplar plantation at a 5 x 3 m spacing. Soil pH and EC decreased significantly under poplar plantation than sole barley crop. A significant increase in soil organic carbon, available nitrogen, phosphorus and potassium were observed at all depths (0-15, 15- 30 and 30-45 cm) under poplar based agroforestry system than sole barley (devoid of trees). Poplar based agroforestry system was observed to provide exemplary effect on soil properties as compared to sole cropping. Thus, signifying that poplar based agroforestry system will also yield good returns to farmers in the long-run by improving the soil health and agricultural sustainability.

The Indian Journal of Agricultural Sciences

A study was carried out during 2016–17 at Research Farm of the Department of Forestry, CCS Haryan... more A study was carried out during 2016–17 at Research Farm of the Department of Forestry, CCS Haryana AgriculturalUniversity, Hisar, Haryana to assess the effect of Eucalyptus planting geometry (17 m × 1 m × 1 m, 6 m × 1.5 m, 3 m× 3 m and devoid of trees, i.e. control) on soil micronutrients (zinc, iron, manganese, and copper) at the soil depths of 0–15, 15–30, 30-60 and 60–90 cm. The results showed that the different planting spacing of Eucalyptus, soil depths, and their interactions on micronutrients were significantly different and these were decreased with increasing the soil depth. The DTPA extractable micronutrient Zn, Fe, Mn, and Cu were in the range 0.8-1.3, 5.1-6.7, 6.8-8.1, and 2.6-3.1 mg/kg respectively. The soil micronutrient content decreased under a wider spacing agroforestry system but the maximum reduction was found under control treatment when compared with closer spacing (3 m × 3 m). The increase in micronutrient availability in soil due to the influence of Eucalyptus...

Pulmonary Circulation

Pulmonary embolism (PE) is a major cause of cardiovascular morbidity and mortality. Obstructive s... more Pulmonary embolism (PE) is a major cause of cardiovascular morbidity and mortality. Obstructive sleep apnea (OSA) is increasingly recognized in the aging population, especially with the rising obesity epidemic. The impact of OSA on inpatient mortality in PE is not well understood. We used the Nationwide Inpatient Sample databases from 2005 to 2016 to identify 755,532 acute PE patients (age≥18 years). Among these, 61,050 (8.1%) were OSA+. Temporal trends in length of stay, inpatient mortality, and its association with OSA in PE patients were analyzed. The proportion of PE patients who were OSA+ increased from 2005 to 2016. OSA+ PE patients were younger and predominantly men. Despite a higher prevalence of traditional risk factors for inpatient mortality in OSA+ patients, OSA was associated with a lower risk of mortality in PE patients (odds ratio, 95% confidence interval; p: unadjusted 0.56, 0.53–0.58; p < 0.0001 and adjusted 0.55, 0.52–0.58; p < 0.0001). Overall mortality and length of stay in PE patients decreased over time. Relative to OSA– patients, there was a slight increase in mortality among OSA+ PE patients over time, although the length of stay remained unchanged between the two groups. In conclusion, OSA+ PE patients had a lower inpatient mortality compared to OSA– patients despite a higher prevalence of traditional mortality risk factors. Secondary pulmonary hypertension related to OSA with preconditioning of the right ventricle to elevated afterload may potentially explain the protective effect of OSA on mortality in PE. However, mechanistic studies need to further elucidate the links behind this association.

Ecology, Environment and Conservation

The present investigation was conducted out at Research Farm, Department of forestry, CCS Haryana... more The present investigation was conducted out at Research Farm, Department of forestry, CCS Haryana Agricultural University, Hisar to assess the influence of different agroforestry system on dynamic soil physical parameters. Soil samples were collected randomly from varying depths viz. 0-15, 15-30, 30-60 and 60-90 cm from different agroforestry system viz. Poplar + wheat, Eucalyptus + barley, Melia + wheat, Shisham + mustard, wheat, barley and mustard. Analysis of different physical properties was done at all depths except infiltration rate. Infiltration rate was observed at surface depth (0-15 cm) only. Soil texture, being a static property was not found to be affected by agroforestry system. Non-significant effect was observed in case of soil texture among different agroforestry system. Poplar + wheat recorded maximum infiltration rate which was at par with Eucalyptus + barley, Melia+ wheat and Shisham + mustard agroforestry system. Saturated hydraulic conductivity was maximum under...

Asian Transport Studies, 2022

Indian Journal of Agricultural Sciences, Dec 2, 2021

The study was carried out at Forestry Research Farm, CCSHAU, Hisar to assess the effect of agri-s... more The study was carried out at Forestry Research Farm, CCSHAU, Hisar to assess the effect of agri-silvi-horticultural system, i.e. on different soil microbial properties. Surface soil (0-15 cm) samples were collected randomly and then these samples were immediately used for analyzing potentially mineralizable nitrogen, microbial biomass carbon, dehydrogenase activity, alkaline phosphatase activity and urease activity under 3 treatments (5 replications), i.e. control (wheat), Kinnow + wheat and Kinnow + Eucalyptus + wheat. Significant improvement in soil biological properties was observed under tree-based system as all biological properties were recorded highest in Kinnow + Eucalyptus + wheat system followed by Kinnow + wheat as compared to control. Dehydrogenase and alkaline phosphatase activity were higher under Kinnow + Eucalyptus + wheat (69.3 and 33.8%) followed by Kinnow + wheat (39.6 and 12.2%) over control. Similarly, microbial biomass carbon (MBC) and urease activity were observed to be higher under Kinnow + Eucalyptus + wheat (50.3 and 31.9%) followed by Kinnow + wheat (28.9 and 12.3%) over control. A linear positive regression relationship was observed among organic carbon vs. microbial biomass carbon. The coefficient of determination for organic carbon and microbial biomass carbon explained variability of 98.3%. The result of the study showed that tree-based agroforestry system can significantly increase the soil biological properties. Based on the present study, it was suggested that soil microbiological activities can be enhanced by adopting agroforestry or tree-based system.

Supplemental material, sj-pdf-1-pul-10.1177_2045894021996224 for Outcomes of patients hospitalize... more Supplemental material, sj-pdf-1-pul-10.1177_2045894021996224 for Outcomes of patients hospitalized for acute pulmonary embolism by obstructive sleep apnea status by Aditya A. Joshi, Raef H. Hajjali, Avantee V. Gokhale, Triston Smith, Amit K. Dey, Garima Dahiya, Joseph B. Lerman, Aparna P. Sajja, Manreet Kanwar and Amresh Raina in Pulmonary Circulation

Circulation, 2020

Introduction: Magnetic Resonance Imaging (MRI) non-conditional cardiovascular implantable electro... more Introduction: Magnetic Resonance Imaging (MRI) non-conditional cardiovascular implantable electronic devices (CIEDs) have historically restricted the use of MRI. We investigated the impact of MRI on the functional integrity of CIEDs. Methods: In this prospective, observational single-center study, we enrolled patients undergoing MRI over a 5-year period. Prior to assessing the impact of MRI on CIED integrity, we performed interrogations in sequential duplication to assess the intrinsic variability of the device. Subsequently, we performed interrogations immediately after MRI and monitored changes in device parameters and clinical events. Results: We completed 492 MRI studies, 283 (58%) in patients with permanent pacemakers (PPMs), and 209 (42%) with implantable cardioverter defibrillators (ICDs). Subsequent MRI exposures occurred in 73 of 492 (15%) encounters. Accounting for intrinsic variability in CIED lead parameters, there were no significant changes in RA, RV, or LV lead parame...

Circulation: Cardiovascular Quality and Outcomes, 2019

Background: Transcatheter aortic valve replacement (TAVR) has increasingly become the treatment o... more Background: Transcatheter aortic valve replacement (TAVR) has increasingly become the treatment of choice for symptomatic, severe aortic stenosis in patients at high surgical risk. While women have better morbidity & mortality outcomes following TAVR, it is unclear if there is gender disparity in utilization. We investigated gender-based utilization trends of TAVR and assessed associations with income quartiles & comorbidities. Methods: The Nationwide Inpatient Sample (NIS) data was queried from January 2012 to December 2016 to identify patients undergoing TAVR using International Classification of Diseases (ICD) procedural codes. Statistical analyses included baseline comparisons by gender, analyzing associations between gender, TAVR utilization, income & co-morbidities, with use of Chi-square test for categorical variables and Wilcoxon rank sum test for age. The associations were also analyzed using a propensity score matched subset & a logistic regression model. Results: We ident...

Moringa oleifera (Lam.), family Moringaceae is a plant that possesses high medicinal value and a ... more Moringa oleifera (Lam.), family Moringaceae is a plant that possesses high medicinal value and a good source of natural antioxidants. The present study was conducted to determine the content of tannin and phenol in the crude bark extracts of Moringa oleifera, collected from Rewari, Panchkula, Sirsa, Fatehabad and Hisar districts of Haryana state. Phenol was found maximum in Sirsa and tannin was found maximum in Panchkula district. The present study revealed the presence of tannin and phenol in the stem bark of Moringa oleifera.

Phytopathology, 2020

Maize has become a staple food in many countries of the world, with the total production of maize... more Maize has become a staple food in many countries of the world, with the total production of maize surpassing that of wheat or rice. The efﬁcient use of water by modern irrigation systems is becoming immensely important in arid and semi-arid parts of the country with limited water resources. Drip-irrigation has increasingly applied in maize (Zea mays L.) production in sub-humid regions also. It is critical to quantify irrigation requirements during different growth stages of maize under diverse climatic conditions. Maize is one of the most versatile emerging crops having wider adaptability under varied agro-climatic conditions in different parts of the world. Globally, maize is known as the queen of cereals because it has the highest genetic yield potential among different cereal crops. It is cultivated in many countries having a wider diversity of soil, climate, biodiversity, and management practices.

Current Treatment Options in Cardiovascular Medicine, 2021

Implantable cardioverter-defibrillator (ICD) implantation is a guideline-recommended indication f... more Implantable cardioverter-defibrillator (ICD) implantation is a guideline-recommended indication for primary prevention of sudden cardiac death (SCD) in high-risk patients. ICD implantation is lower in women than in men, a difference that has persisted over the last two decades. The goal of this review is to explore potential factors in under- utilization of ICDs in women and to provide information on gender differences in mortality benefit of ICDs. Epidemiological evidence shows that women with cardiovascular disease tend to present at an older age, have more non-ischemic cardiomyopathy, and develop fewer ventricular arrhythmias than men. Significant gender differences in participants of ICD clinical trials challenge the applicability of mortality benefit of ICDs in women. Studies of cardiac resynchronization therapy (CRT) devices have shown improved survival in women over men, a fact that is not reflected in the number of CRTs implanted in women. A gender gap in the implantation of ICDs for primary prevention of SCD continues to exist. Understanding of differences in epidemiology and physiology between women and men is an important step in providing appropriate device therapy to patients at risk of SCD.

Pacing and Clinical Electrophysiology, 2021

Cardiovascular implantable electronic devices (CIEDs) have historically restricted the use of mag... more Cardiovascular implantable electronic devices (CIEDs) have historically restricted the use of magnetic resonance imaging (MRI) due to the potential clinical and configurational risks associated with electromagnetic interference. In this study, the authors investigated the impact of MRI on the functional integrity of non‐conditional CIEDs and their clinical correlates.

International Journal of Intelligent Transportation Systems Research, 2021

Hypertrophic cardiomyopathy is a common heritable cardiomyopathy with various clinical phenotypes... more Hypertrophic cardiomyopathy is a common heritable cardiomyopathy with various clinical phenotypes. A rare spiral variant has been recently reported that has been associated with adverse outcomes and has traditionally been diagnosed using cardiac magnetic resonance. We report a case of the rare variant spiral hypertrophic cardiomyopathy where we used transthoracic echocardiography with an ultrasound enhancing agent to demonstrate the geometry of spiral hypertrophic cardiomyopathy and compared to simultaneous cardiac MRI images. The use of echocardiography with ultrasound enhancing agents may prove to be a valuable tool in identifying the geometry of hypertrophic cardiomyopathy variants in selected patients.

Journal of Applied and Natural Science, 2020

Generation of spatio-temporal information such as land use system and management practices is one... more Generation of spatio-temporal information such as land use system and management practices is one of the key ingredients for carrying out the regional level agro-ecosystem modelling. However, at the regional level availability of such data is scarce, where analysis of a cropping system is essential and a pre-requisite for studying the overall sustainability of the agricultural production system. The present investigation was carried out to identify the actually practised cropping pattern and their mapping in Hisar district of Haryana (India) using Multi-Data Approach (MDA). Multi-date sentinel-1 for the rabi season of 2019 was classified using multi-phase unsupervised classification approach and classes of interest were identified. Finally, classified images were subjected to logical combinations which helped in generating crop classification maps and statistics. Results showed that cropping pattern of the district exhibited huge variations and area under wheat was observed to be hi...

International Journal of Chemical Studies, 2020

The present study was conducted at Research Farm, Department of Forestry CCS HAU, Hisar to analyz... more The present study was conducted at Research Farm, Department of Forestry CCS HAU, Hisar to analyze the effect of agri-silvi-horticultural system (Kinnow +Eucalyptus+ Wheat, Kinnow+ Wheat and sole crop on soil moisture content at0-15, 15-30, 30-60 and 60-90 cm soil depths). Total five irrigations at an interval of one month were applied from sowing to harvesting stage. Soil moisture content was measured gravimetrically before each irrigation. Moisture content was increased significantly with increase in soil depth but it decreased under tree integrated system and maximum decrease was observed under Kinnow + Eucalyptus + wheat system. There was slight difference between first and second irrigation which shows more moisture content relative to succeeding 3 irrigations. During first irrigation, mean soil moisture content was significantly higher under control (12.6%) followed by Kinnow+Wheat (11.7%) and it was lowest under Kinnow+Eucalyptus+Wheat system (10.7%). Similarly at second irrigation, mean soil moisture content was significantly higher under control (11.7%) followed by Kinnow+Wheat (10.7%). Significantly lowest was under Kinnow+Eucalyptus+Wheat system (10.0%) as compared to control. In succeeding three irrigations, mean soil moisture content was statistically at par with each other in all the systems. Based on above study, results showed that there was more uptake of moisture under tree based system which is due to deep and proliferated root system of tree component as compared to sole crop.