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51.
Sriram Krishnamurthy Parameswaran Narayanan Sivaprakasam Prabha Nivedita Mondal Subramanian Mahadevan Niranjan Biswal Sadagopan Srinivasan 《Indian Journal of Critical Care Medicine》2013,17(4):207-213
Background:
Although the term acute renal failure was replaced by acute kidney injury (AKI) recently, there is a paucity of data on the incidence and profile of AKI in critically ill children from the developing world.Objectives:
The objective of this study is to determine the incidence, etiology, short term outcome and predictors of fatality in critically ill children admitted to the pediatric intensive care unit (PICU) with AKI, aged 1 month to 13 years.Materials and Methods:
In this prospective observational study, from June 2010 to March 2011, 215 children admitted to the PICU were screened for AKI, defined according to the AKI Network criteria. The patients with AKI were followed-up until discharge/death. Their clinical and biochemical data were recorded.Results:
The incidence of AKI among 215 patients screened was 54 (25.1%). The common etiologies were infections, [34 (62.9%)], acute glomerulonephritis (7.6%), snake envenomation (5.7%), hemolytic uremic syndrome (3.8%) and congestive cardiac failures (3.8%). Among infections, pneumonia and septicemia constituted 26.5% each, meningoencephalitis accounted for 23.5%, and dengue, scrub typhus, tuberculosis and malaria constituted 9.3% of children with AKI. 27.8% of patients required dialysis. Overall mortality was 46.3%. On logistic regression analysis, requirement of mechanical ventilation was an independent predictor of fatality in AKI.Conclusions:
Besides the high incidence of AKI in critically ill-children admitted to the PICU (25.1%), the condition was associated with adverse outcomes, including high mortality (46.3%) and need for dialysis (27.8%). Infections dominated the etiological profile. Requirement of mechanical ventilation predicted an adverse outcome in our patient population. 相似文献52.
Cynthia Scott Karthik Ramakrishnan Narayanan Vivek Chandran Saravanan Gurram Prashanthi 《Journal of oral and maxillofacial surgery》2021,79(6):1330.e1-1330.e12
53.
Karthik Ramakrishnan Cynthia Scott Pavithra Sarda. K Narayanan Vivek Chandran Saravanan 《Journal of cranio-maxillo-facial surgery》2021,49(6):488-493
This retrospective study aims to evaluate the correlation between the shape of the mandibular condylar head and the incidence of unilateral condylar fracture using computed tomography.Medical records of patients diagnosed with unilateral condylar fractures from the year 2012–2019 were reviewed. The shape of the condylar head on the non - fractured side was analysed using a Radiant Dicom Viewer. The analysis was done using both visual and analytical methods. In the analytical method, a horizontal line was drawn at the base of the curvature of the condylar head. The highest peak point of the head was marked, and a perpendicular line was drawn connecting the highest point to the horizontal line. The shape was categorized into four types as convex, flat, angled, and round based on these lines.201 CT scans were examined, of which 69 were excluded as they did not meet the inclusion criteria. The remaining 132 were included in our study. On examining the shape, flat-shaped condyle was seen in 57 scans (43.2%), followed by convex in 31 scans (23.4%), angled in 30 (22.7%) and round in 14 scans (10.6%). The relationship between the shape of the mandibular condylar head and the incidence of unilateral condylar fracture was analysed using a chi-square test, which showed high statistical significance (p value 0.0001). The flat-shaped condylar head was more prone to fracture, and the round-shaped condylar head was least prone to fracture.In conclusion, the shape of the mandibular condylar head had a statistically significant association with the incidence of unilateral condylar fracture. The assessment of the shape of the condylar head can be taken as a guide to suspect condylar fractures and other associated mandibular fractures. 相似文献
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55.
Namboodiri N Harikrishnan SP Ajitkumar V Tharakan JA 《The Journal of invasive cardiology》2008,20(1):E33-E35
A 43-year-old male with mirror-image dextrocardia and severe rheumatic mitral stenosis was subjected to successful percutaneous transvenous mitral commissurotomy (PTMC). The standard Inoue technique was modified by transseptal catheterization via the left femoral vein, image inversion, delineation of the interatrial septal anatomy via levophase pulmonary angiography, septal contrast staining and pigtail catheter insertion in the noncoronary aortic sinus, interatrial septal puncture with the transseptal needle rotated to a 7 o'clock position and left ventricular entry with a reverse loop technique. There were no procedural complications. Intracardiac pressures and mitral valvular planimetry suggested a successful procedural outcome. This case illustrates that PTMC can be accomplished safely in patients with this unusual cardiac anatomy with a few modifications in the standard technique. 相似文献
56.
Damodaran Narayanan Olga K. Weinberg 《International journal of laboratory hematology》2020,42(1):3-15
Acute myeloid leukemia (AML) is a neoplasm of immature myeloid cells and is associated with a wide variety of clinical presentations, morphological features, immunophenotypes, and genetic findings. Recent advances in identification of cytogenetic abnormalities and mutations have provided novel insights into the pathogenesis of AML. Based on the above‐mentioned parameters, the World Health Organization (WHO) classified AML into 25 subtypes, including 2 provisional entities, which differ in prognosis and treatment. In addition, certain mutations are associated with germline predisposition and increase the risk of inherited AML, which warrants family screening. Therefore, precise diagnosis and classification of AML are the most important steps in patient management. Both these steps require incorporation of history, clinical presentation, and laboratory results with studies performed by a pathologist. Pathologist‐initiated studies include morphologic evaluation on the bone marrow aspirate and/or core biopsy, immunophenotyping by flow cytometry and/or immunohistochemistry, cytogenetic analysis by karyotyping and/or fluorescence in situ hybridization, and molecular testing using gene panels and/or next‐generation sequencing. A similar approach is employed during follow‐up of patients after beginning treatment. Here, we describe in detail the various aspects of the workup, including purpose, limitations, and practice guidelines for the different studies. The process of choosing appropriate materials for the different studies is also addressed. We also provide an algorithm for the workup and risk stratification of AML based on guidelines recommended by the WHO, College of American Pathologists, National Comprehensive Cancer Network, American Society of Clinical Oncology, European Society of Medical Oncology, and the European LeukemiaNet. 相似文献
57.
Sudeshna Patra Pallavi Thakur Bhaskar Soman Anand B. Puthirath Pulickel M. Ajayan Santosh Mogurampelly V. Karthik Chethan Tharangattu N. Narayanan 《RSC advances》2019,9(66):38646
Polymer based solid electrolytes (SEs) are envisaged as futuristic components of safer solid state energy devices. But the semi-crystalline nature and slow dynamics of the host polymer matrix are found to hamper the ion transport through the solid polymer network and hence solid state devices are still far beyond the scope of practical application. In this study, we unravel the synergistic roles of Li salt (LiClO4) and two different polymers – polyethylene oxide (PEO) and polydimethyl siloxane (PDMS), in the Li ion transport through their solid blend based electrolyte. A detailed study using dielectric spectroscopy and thermo-mechanical analysis is conducted to understand the tunability of the PEO chain dynamics with LiClO4 and the mechanism of hopping of Li ions by forming ion pairs with oxygen dipoles on the PEO backbone is established. Despite the lack of PDMS''s capability to solvate ions and promote ion transport directly, its proper mixing within the PEO host matrix is demonstrated to enhance ion transport due to the influence of PDMS on the segmental dynamics of PEO. A detailed molecular dynamics study supported by experimental validation suggests that even inert polymers can affect the dynamics of the active host matrix and increase ion transport, leading to next generation high ionic conductivity solid matrices, and opens new avenues in designing polymer based transparent electrolytes.The studies shown here prove that both the Li salt and ‘inert-polymer’ mixing have paramount importance in the tunability of Li ion conductivity in solid electrolytes for batteries. 相似文献
58.
Gopalan Nair Rajesh Kalathingathodika Sajeer Anishkumar Nair Chakanalil Govindan Sajeev Mangalath Narayanan Krishnan 《Indian heart journal》2014,66(3):370-371
Hammock valve, also known as anomalous mitral arcade is a rare mechanism for congenital mitral insufficiency. We report a case of a two-week-old neonate who presented with features of heart failure and an apical systolic murmur. Echocardiogram showed severe mitral regurgitation and abnormal mitral valve with direct attachment of mitral leaflets to papillary muscle without intervening chordae tendinae, typical of hammock valve. Heart failure was controlled with ionotrpes and diuretics. The literature on the hammock mitral valve is reviewed. 相似文献
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