How does clinical profile and outcome differ in patients with Chronic Kidney Disease undergoing percutaneous coronary revascularization according to the severity of CKD? - CHANNEL Study.

Background: Chronic kidney disease (CKD) is an independent risk factor for the development of coronary artery disease. We evaluated outcomes amongst patients of CKD undergoing percutaneous coronary intervention (PCI) as assessed on severity of CKD based on estimated glomerular filtration rate (eGFR) at the time of PCI.

Method And Materials: We analyzed 100 consecutive CKD patients who underwent PCI and were followed up for 1 year; an observational, prospective, open-label study.

A one-dimensional search method with stable 1-norm solution for linear prediction.

In this paper a simple iterative algorithm that is guaranteed to produce a stable all-pole filter when minimizing the 1-norm of the linear prediction error signal is proposed. The approach works for both the autocorrelation and covariance frameworks, involves only a one-dimensional search at each step, and obviates the need for linear programming based methods. Based on simulation studies, it was observed that the performance of the algorithm is nearly optimal, i.