Publications by authors named "Sandeep Mahajan"

Article Synopsis
  • Researchers created SiC nanoparticles coated with graphene oxide through femtosecond laser ablation in water, revealing unique structural features and silicene sheet micro-nanostructures in the solution.
  • * The surfaces of the SiC showed high spatial frequency laser-induced periodic surface structures (LIPSS) with size variations linked to the resistivity of the SiC materials used.
  • * The study explored the properties of annealed Au-deposited LIPSS for sensing applications, finding that rapid thermal annealing significantly enhanced surface-based detection of explosives like Tetryl through surface-enhanced Raman scattering (SERS).*
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A 45-year-old male presented with diminution of vision in the right eye (RE) for the past 2 weeks. He underwent sequential bilateral cataract surgery 25 years ago, with an intraocular lens in RE, which was his better eye. The left eye was aphakic with a thick fibrous membrane at the pupillary plane.

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Chiari malformation (CM) type 1 is a complex neurological disorder characterized by the displacement of the cerebellar tonsils into the upper spinal canal. Hydrosyringomyelia (HSM), which frequently coexists with this condition, presents diagnostic and treatment problems due to its broad spectrum of symptoms. There are various forms of CMs, with CM type 1 (CM1) being the most common type.

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Background: Diabetic kidney disease (DKD) is the commonest cause of end-stage renal disease (ESRD) across the world. Development of microalbuminuria is the earliest marker of DKD and predicts progressive decline in estimated glomerular filtration rate (eGFR). However, recent evidence has suggested that a significant proportion of type 2 diabetic patients have chronic kidney disease (CKD) without proteinuria.

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Background And Aims: Acute kidney injury (AKI) is a frequent complication of severe trauma associated with high mortality. The aim of this study was to evaluate the diagnostic ability of plasma and urine neutrophil gelatinase-associated lipocalin (NGAL) as an early marker of AKI assessed by RIFLE criteria as reference in trauma patients in intensive care unit (ICU).

Material And Methods: This was a prospective observational study.

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Purpose: There is an increasing burden of kidney diseases worldwide and access to specialist care is limited. Telemedicine, has been relatively less used in developing countries like India. The current study aims to assess the feasibility and acceptance of telenephrology services at our institute, a public hospital.

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Capsulorhexis in white intumescent cataract is often associated with extension leading to radial tears or biradial extension "Argentinian flag sign" and associated complications. We describe a novel technique of managing this situation. Vacuum rhexis is performed with a 24 G bent cannula attached to a 10-ml syringe.

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Article Synopsis
  • Catheter malfunction due to omental wrapping is a common issue in continuous ambulatory peritoneal dialysis (CAPD), and the study aimed to assess how laparoscopic omentectomy affects catheter function.
  • In a pilot randomized controlled trial (RCT), patients were divided into three groups: one receiving laparoscopic PDCI with omentectomy, one without, and one receiving open surgical PDCI, monitoring catheter malfunction over 6 weeks and 3 months.
  • Results showed that the group with omentectomy had a significantly lower rate of catheter malfunction compared to the other groups, suggesting that omentectomy might be beneficial, particularly for patients with previous catheter failures, indicating the need for larger trials.
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Introduction: International IgA nephropathy (IgAN) network (IIgANN) prediction tool was developed to predict risk of progression in IgAN. We attempted to externally validate this tool in an Indian cohort because the original study did not include Indian patients.

Methods: Adult patients with primary IgAN were stratified to low, intermediate, higher, and highest risk groups, as per the original model.

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Background In participants with concomitant chronic coronary disease and advanced chronic kidney disease (CKD), the effect of treatment strategies on the timing of dialysis initiation is not well characterized. Methods and Results In ISCHEMIA-CKD (International Study of Comparative Health Effectiveness With Medical and Invasive Approaches-Chronic Kidney Disease), 777 participants with advanced CKD and moderate or severe ischemia were randomized to either an initial invasive or conservative management strategy. Herein, we compare the proportion of randomized participants with non-dialysis-requiring CKD at baseline (n=362) who initiated dialysis and compare the time to dialysis initiation between invasive versus conservative management arms.

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Introduction: Early graft function is crucial for successful kidney transplantation. Intravascular volume maintenance is paramount in ensuring reperfusion of transplanted kidney. This study was planned to compare whether the timing of fluid infusion can help to decrease amount of fluid given without altering early graft function during renal transplantation.

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Continuous ambulatory peritoneal dialysis (CAPD) related peritonitis is a major cause of technique failure, morbidity, and mortality in patients on CAPD. Its prevention and management is key to success of CAPD program. Due to variability in practice, microbiological trends and sensitivity towards antibiotics, there is a need for customized guidelines for management of CAPD related peritonitis (CAPDRP) in India.

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Background: Diabetic kidney disease (DKD) is the chief cause of renal involvement in diabetic patients. It is primarily a clinical diagnosis. Non-diabetic kidney disease (NDKD) may be missed if they are not biopsied.

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Background: Among patients with diabetes and chronic coronary disease, it is unclear if invasive management improves outcomes when added to medical therapy.

Methods: The ISCHEMIA (International Study of Comparative Health Effectiveness with Medical and Invasive Approaches) trials (ie, ISCHEMIA and ISCHEMIA-Chronic Kidney Disease) randomized chronic coronary disease patients to an invasive (medical therapy + angiography and revascularization if feasible) or a conservative approach (medical therapy alone with revascularization if medical therapy failed). Cohorts were combined after no trial-specific effects were observed.

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Background: There is limited information about the incidence of metabolic acidosis (MA) after renal transplantation. This single centre prospective study aimed to delineate the incidence and risk factors of MA in the first 6 months after renal transplantation (RTX).

Design, Setting, Participants And Measurements: Patients who underwent RTX between November 2018 and July 2020 were monitored with weekly measurement of serum bicarbonate level for 6 months and those who were diagnosed with MA were evaluated further to characterize the type of MA.

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Background: About 18%-65% of Arterio-Venous fistula (AVF) made to facilitate haemodialysis in end stage renal disease patient fail to mature. This study was designed to evaluate the impact of clinical parameters and vascular haemodynamics on maturation of AVF on Indian patients.

Material And Methods: This was a prospective observational study.

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COVID pandemic poses challenges to peritoneal dialysis patients, caretaker, and service provider to the PD patients as well. The chronic (PD) patients are trained to do the PD procedure at home, therefore can avoid in-center hospital visit unlike patients on hemodialysis. Thus, PD patients can avoid undue exposure to the novel coronavirus.

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Hereditary thrombotic thrombocytopenic purpura (TTP) is a genetic condition caused by mutations in gene, leading to very low levels of ADAMTS13 (a disintegrin and metalloprotease with thrombospondin type I domain 13) activity. It is a rare condition associated with multiple reported mutations. Here, we describe a case of hereditary TTP with a compound novel heterozygous mutation along with secondary focal segmental glomerulosclerosis.

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Article Synopsis
  • Prospective living kidney donors require thorough assessment, including the use of ambulatory blood pressure monitoring (ABPM), which is the preferred method for diagnosing hypertension, especially as previous studies in India had not addressed this.
  • The study involved 51 healthy kidney donors, revealing a notable difference between ABPM and office blood pressure measurements (OBPM); 13.7% of donors were hypertensive post-nephrectomy via ABPM compared to only 3.9% by OBPM.
  • After donation, there was a significant increase in serum creatinine levels and proteinuria, particularly in older donors, indicating a need for continued monitoring of renal function and hypertension in kidney donors.
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Aim: Pattern of kidney diseases varies across geographies due to multiple factors. There is a paucity of information from South Asia due to the absence of nationwide/regional biopsy registries. This study aimed to delineate the spectrum of renal parenchymal diseases in our region.

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Introduction: Critically ill severe malaria constitutes one of the major hospital admissions in Indian setting. Clinical studies identifying the factors associated with acute kidney injury (AKI) in malaria are lacking. This study aimed to identify these factors.

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Background: Persistent significant proteinuria has been associated with increased risk of progression to end-stage kidney disease in patients with idiopathic membranous nephropathy (IMN). Rituximab (RTX) therapy has given encouraging results in IMN, but most of the studies have used a higher dose, which is limited by the high cost as well as a potential increased risk of infections. Our study aimed to assess the efficacy and safety of low-dose RTX in patients with immunosuppression-resistant IMN.

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