Descemet membrane endothelial keratoplasty (DMEK) aquarium: Diving in to learn DMEK surgical concepts

A novel simulation model (without using human corneas) has been described for understanding the surgical concepts and developing tactile reflexes of Descemet membrane (DM) endothelium scroll manipulation and orientation in the anterior chamber, which are necessary for performing Descemet membrane endothelial keratoplasty (DMEK). Termed the “DMEK aquarium,” this model helps facilitate the understanding of different maneuvers of the DM graft needed inside the fluid-filled anterior chamber, like unrolling or unfolding, flipping or inversion, and checking orientation and centration in the host cornea. A stepwise plan for surgeons starting to learn DMEK utilizing various available resources is also suggested.

The Power and Promise of Angiotensin Receptor Neprilysin Inhibitor (ARNI) in Heart Failure Management: National Consensus Statement

Heart failure (HF) is a huge global public health task due to morbidity, mortality, disturbed quality of life, and major economic burden. It is an area of active research and newer treatment strategies are evolving. Recently angiotensin receptor-neprilysin inhibitor (ARNI), a class of drugs (the first agent in this class, Sacubitril–Valsartan), reduces cardiovascular mortality and morbidity in chronic HF patients with reduced left ventricular ejection fraction (LVEF). Positive therapeutic effects have led to a decrease in cardiovascular mortality and HF hospitalizations (HFH), with a favorable safety profile, and have been documented in several clinical studies with an unquestionable survival benefit with ARNI, Sacubitril–Valsartan. This consensus statement of the Indian group of experts in cardiology, nephrology, and diabetes provides a comprehensive review of the power and promise of ARNI in HF management and an evidence-based appraisal of the use of ARNI as an essential treatment strategy for HF patients in clinical practice. Consensus in this review favors an early utility of Sacubitril–Valsartan in patients with HF with reduced EF (HFrEF), regardless of the previous therapy being given. A lower rate of hospitalizations for HF with Sacubitril–Valsartan in HF patients with preserved EF who are phenotypically heterogeneous suggests possible benefits of ARNI in patients having 40–50% of LVEF, frequent subtle systolic dysfunction, and higher hospitalization risk.

Unmet Need for Further LDL-C Lowering in India despite Statin Therapy: Lipid Association of India Recommendations for the Use of Bempedoic Acid

Lipid-lowering therapy plays a crucial role in reducing adverse cardiovascular (CV) events in patients with established atherosclerotic cardiovascular disease (ASCVD) and familial hypercholesterolemia. Lifestyle interventions along with high-intensity statin therapy are the first-line management strategy followed by ezetimibe. Only about 20–30% of patients who are on maximally tolerated statins reach recommended low-density lipoprotein cholesterol (LDL-C) goals. Several factors contribute to the problem, including adherence issues, prescription of less than high-intensity statin therapy, and de-escalation of statin dosages, but in patients with very high baseline LDL-C levels, including those with familial hypercholesterolemia and those who are intolerant to statins, it is critical to expand our arsenal of LDL-C-lowering medications. Moreover, in the extreme risk group of patients with an LDL-C goal of ?30 mg/dL according to the Lipid Association of India (LAI) risk stratification algorithm, there is a significant residual risk requiring the addition of non-statin drugs to achieve LAI recommended targets. This makes bempedoic acid a welcome addition to the existing non-statin therapies such as ezetimibe, bile acid sequestrants, and PCSK9 inhibitors. A low frequency of muscle-related side effects, minimal drug interactions, a significant reduction in high-sensitivity C-reactive protein (hsCRP), and a lower incidence of new-onset or worsening diabetes make it a useful adjunct for LDL-C lowering. However, the CV outcomes trial results are still pending. In this LAI consensus document, we discuss the pharmacology, indications, contraindications, advantages, and evidence-based recommendations for the use of bempedoic acid in clinical practice.

Comparative study of closed versus open lateral internal sphincterotomy in the management of chronic anal fissure

Background: Anal fissure is a painful tear in distal anal canal extending from just below the dentate line to anal verge. Patient presents with pain during or after defecation and passage of bright red blood per anus. Various studies investigating chronic anal fissures show a large variation in healing rates for different modalities. The present study was carried out to evaluate effectiveness of closed versus open lateral internal sphincterotomy in treatment of patients with chronic anal fissure.Methods: A prospective study was conducted in the Department of Surgery, Pt. B.D. Sharma PGIMS, Rohtak. Group A and group B included 20 patients each with chronic anal fissure and managed by closed and open lateral internal sphincterotomy respectively and effectiveness was evaluated with regards to fissure healing, pain reduction, recurrence and incontinence after surgical treatment.Results: The mean pain scores on visual analogue scale at end of 1 week in group A and group B was not found to be statistically significant, whereas it was found to be statistically significant at 3 week and at 6 weeks. Delayed healing was seen in 1 patient of group B, whereas no patient in group A had delayed healing or absence of healing postoperatively.Conclusions:There was a significant difference between closed and open methods of lateral internal sphincterotomy in terms of relief in post-operative pain but as a whole both techniques did not show any statistically significant difference in terms of fissure healing, postoperative complications or recurrence at 3 months.

Clinical profile and one-year survival of patients with heart failure with reduced ejection fraction: The largest report from India

Background India has one of the largest population of heart failure (HF) patients in the world; yet only limited information is available about HF in India. Methods This observational study was performed at Medanta- The Medicity, a large, tertiary-care institute in the National Capital Region of India. Records of HF patients with reduced left ventricular ejection fraction (LVEF) registered at Medanta HF clinic during the period early 2014 to mid-2017 were reviewed. Disease characteristics and one-year mortality details were collected. Results Mean age of the subjects (n = 5590) was 59.1 ± 11.8 years with 83.0% males. Mean LVEF was 30.0 ± 6.6%. Coronary artery disease (CAD) was the dominant cause of HF, accounting for 77.8% of the total population. Most patients received guideline-directed medical therapy with a beta blocker being prescribed to 81.8% subjects. The one-year all-cause mortality was 17.6%. On multivariate analysis, age, usage of loop diuretics and ivabradine, and serum creatinine were independently associated with one-year mortality, whereas rheumatic etiology had an inverse association. Conclusions This represents the largest single-center data of HF patients reported so far and the largest study describing clinical outcomes from HF patients in India. Our patients were younger, had high proportion of CAD, and there was higher usage of beta-blockers. Despite this, the one-year mortality was substantial. Given the enormous magnitude of HF burden in India and the paucity of information on this subject, these findings should be of help in identifying key problem areas and potential solutions for management of HF in India.

Microbiological Evaluation of Otitis Media: An Institutional Based Study

Background: Otitis media is defined as an infection of themiddle ear fluid and is the second most common diagnosis inthe emergency department following upper respiratoryinfections. Hence; under the light of above mentioned data, weplanned the present study to assess microbiological profile ofpatients with otitis media.Materials & Methods: A total of 100 patients with otitis mediawere included in the present study. From the diseased ear ofall the patients, ear discharge was obtained use sterilizedswabs. All the swabs were inoculated in 5% sheep blood agar(BA), MacConkey's agar and chocolate agar (CA) andSabouraud Dextrose Agar with chloramphenicol (0.05%),followed by incubation at 28°C and 37°C. The slants were laterexamined for gross and the microscopic morphology of thefungi.Results: Among aerobes, the predominant species identifiedwere Pseudomonas aeruginosa, Kebsiella penmoniae,Escherichia coli and Diptheoides. Among anaerobesClostridium species, Peptococcus speciesand Peptostreptococcus species were the most commonlyidentified species. Among fungal isolates, the most commonlyisolated species were that of Aspergillus niger, Aspergillusfumigatus and Candida species.Conclusion: Aerobic bacteria are the most common isolatesamong otitis media patients.

ST2 elevation in heart failure, predictive of a high early mortality

Background Soluble suppression of tumorigenicity-2 (sST2) is a novel biomarker shown to be useful for prognostic assessment in heart failure (HF). However, very limited data exists about its prognostic utility in patients with HF in India. Methods We studied 150 patients [mean age 67.7 ± 13.3, 93 (62%) males], hospitalized with clinical HF, irrespective of their left ventricular ejection fraction (LVEF). HF was confirmed by N-terminal probrain natriuretic peptide (NT-proBNP) value above 125 ng/L. Primary end point was death or cardiac transplant at 1-year follow-up, with additional telephonic follow-up performed at 2 years. The clinical outcomes were correlated with the sST2 values obtained at the time of initial hospitalization. Results HF was ischemic in origin in 82.0% patients. The primary outcome occurred in 9.3% patients at the end of 1-year follow-up and in 16.7% patients at the end of 2 years. The patients who had events had significantly higher NT-proBNP and sST2 values, but there was no difference in the clinical characteristics, cause of HF, baseline LVEF, or serum creatinine. The patients with elevated sST2 levels (>35 ng/mL) had substantially higher event rates than those with normal sST2 levels (13.7% vs 0.0% at 1-year, P = 0.005; 22.5% vs 4.2% at 2-years, P = 0.004). On multivariate analysis, sST2 was the strongest predictor of adverse outcomes at both 1-year and 2-year follow-ups. Conclusion In patients hospitalized for HF, elevated sST2 >35 ng/mL at the time of initial hospitalization was associated with significantly high mortality over a 2-year period. The prognostic value of sST2 was incremental to that of NT-proBNP. These findings suggest that a single elevated sST2 value at the time of hospitalization should alert the physicians about the high risk of adverse outcomes and should help facilitate timely intensification of HF treatment.

Protective effect of diosmin against diabetic neuropathy in experimental rats / 中西医结合学报

The present study was undertaken to evaluate the effect of diosmin in diabetic neuropathy in type 2 diabetic rats.

Nephrotic Syndrome: A Rare Presentation of AIDS.

The clinical presentation of HIV-associated nephropathy (HIVAN) include proteinuria, typically in nephrotic range (often massive) and renal insufficiency. HIVAN can be an early manifestation of HIV infection. The term HIVAN is reserved for focal segmental glomerulosclerosis (FSGS) but other glomerular lesions may be there. We are reporting a case of nephrotic syndrome (MPGN) in an otherwise asymptomatic HIV-infected patient.

Pseudomembranous Colitis: Do We Need A Screening.

In the last few decades, increasing use of antibiotics has dramatically increased incidences of antibiotic associated diarrhea. An unopposed homing of Clostridium difficile in ICU and wards put forward new challenges for physicians. Development of diarrhea during or just after hospital stay especially in old patients is a typical clinical presentation of C. difficile diarrhea. Cytotoxin assay from tissue culture is a gold standard diagnostic test but its poor availability, high cost, time bound results and rapidly development of life-threatening complications made us to think of a screening test. Demonstration of pathognomonic summit lesions and pseudomembrane with colonoscopy or sigmoidoscopy is relatively inexpensive, easily available and diagnosis is prompt. Our experience in few patients with colonoscopy makes us to recommend it as a screening test for all clinically suspected patients. Till today, it is refuted as first-line investigation because of good number of false negative results but demonstration of pathognomonic lesions even in few patients saves the life with minimal expenditure and least time wastage before initiation of definitive treatment.

Familial Behcet's disease.

There are very few reports of Behetaet's disease from India. Familial aggregation of Behetaet's disease has been reported with restricted geographical distribution. We report here familial Behcet's disease from India in two brothers aged 30 and 32 years. Both patients had recurrent oral and genital ulcers for approximately five years. They also had arthralgias on and off along with fever. Pathergy test was positive in both cases. Their younger brother and a sister had recurrent oral aphthous ulcers.

Association of carotid intima-media thickness with left main coronary artery disease.

BACKGROUND: Previous studies have shown that carotid intima-media thickness correlates well with the presence and extent of coronary artery disease. This study was conducted to determine whether it could reliably predict the presence of left main coronary artery disease. METHODS: Common carotid intima-media thickness was measured in 50 patients with angiographically proven significant (> or =50%stenosis) left main coronary artery disease and in another 50 age- and sex-matched patients with coronary artery disease without the involvement of the left main coronary artery. Measurements of the carotid intima-media thickness were made on the far wall 1 cm from the distal end of the common carotid artery bilaterally, and the average and the greater of the two values thus obtained for each patient were used for analysis. Plaques were not included in the measurement of carotid intima-media thickness. RESULTS: The average and greater of the two values were significantly higher in patients with left main coronary artery disease as compared to those without it (average intima-media thickness: 0.926 +/- 0.12 vs. 0.78 9 +/- 0.16 mm; p< 0.001; greater intima-media thickness: 0.994 +/- 0.13 vs. 0.844 +/- 0.20 mm; p< 0.001). The cut-off values of 0.81 mm for the average carotid intima-media thickness and 0.87 mm for the greater carotid intima-media thickness were found to have optimum sensitivity (92% and 90%, respectively) and specificity (60% and 64%, respectively) for the detection of left main coronary artery disease. A higher cut-off value of 1.0 mm increased specificity to 92% and 84%, respectively, for the average and greater thicknesses, but sensitivity decreased markedly. CONCLUSIONS: There is a significant association between increased carotid intima-media thickness and the presence of left main coronary artery disease. The measurement of carotid intima-media thickness can be used with reasonably good sensitivity and specificity for the detection of left main coronary artery disease in patients who are undergoing evaluation for suspectedcoronary artery disease.

Low-dose dobutamine echocardiography predicts recovery of left ventricular systolic function following revascularization even in presence of low contractile reserve.

BACKGROUND: Coronary revascularization is known to improve left ventricular ejection function (LVEF) in patients with severe left ventricular systolic dysfunction if there is myocardial viability and contractile reserve is >40% as determined by low-dose dobutamine echocardiography (LDDE). We tried to assess effect of coronary revascularization on left ventricular systolic function in patients with low contractile reserve (40%). METHODS AND RESULTS: In a retrospective analysis we studied 114 consecutive patients with left ventricular systolic dysfunction (LVEF <40%) with low contractile reserve (<40%) as detected by LDDE (16-segment model). Contractile reserve was defined as number of dysfunctional segments that improved on LDDE divided by total number of left ventricular segments studied. Dysfunctional segments at baseline that improved on low-dose dobutamine were considered viable. On the basis of presence or absence of viability and treatment modality, patients were grouped as: revascularization with viability-group A; revascularization without viability-group B; medical therapy with viability-group C, and; medical therapy without viability-group D. At subsequent follow-up (3 months, 1 year and 2 years) left ventricular systolic function was assessed by LVEF and wall motion score index (WMSI). Improvement in left ventricular systolic function was considered to have occurred only if both LVEF and WMSI showed statistically significant ( p<0.05) improvement from baseline. The mean LVEF in viable and non-viable groups were 33.3 -/+ 6.8% and 30.3 -/+ 7.1%, respectively. In patients with viability, the mean number of dysfunctional segments that improved at LDDE was 3.4 -/+ 1.7 and mean contractile reserve was 21.1 -/+ 17.8%. At LDDE, significant improvement in LVEF was seen in all four groups; however, significant improvement in WMSI was seen only in those with viability. At subsequent follow-up (3 months, 1 year and 2 years), significant improvement in LVEF and WMSI as compared to baseline was evident in group A alone. At two years, although the improvement in WMSI was of borderline significance (p = 0.05), the improvement in LVEF was significant ( p < 0.05). No significant improvement was seen in LVEF and/or WMSI in groups B, C and D. CONCLUSION: Presence of myocardial viability on LDDE predicts recovery of left ventricular systolic function even in patients with low contractile reserve which is maintained at long-term follow-up, following revascularization.