Early and long term outcome of rescue percutaneous coronary intervention (R-PCI): experience from a tertiary care center in Pakistan

Hakeem, Abdul; Dhakam, Sajid; Tai, Javed; Bakhtawar, Humayun; Nazim, Muhammad; Raza, Shahzad; Bhatti, Sabha

doi:10.1007/s11239-008-0205-2

Cited by 3 publications

(5 citation statements)

References 24 publications

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“…The validity of this approach has been rigorously demonstrated for cubic crystals in Ref. [13]. Furthermore, we observe that, in general, for anisotropic systems (3.3) and (3.4) depend on the direction of the vector q (i.e.…”

Section: Tddft In Practise: Approximations and Problemsmentioning

confidence: 54%

“…The main task is then to find a good approximation for this a priori unknown effective potential. This idea was generalized to the time-dependent case, where the Kohn-Sham electrons obey [16] i 13) and the density is given by…”

Section: The Time-dependent Kohn-sham Equationsmentioning

confidence: 99%

“…A contraction of the four-point reducible part L(r, r 1 , r , r 1 , ω) of the two-particle Green's function leads to the two-point response functions χ(r, r , ω) that determine measurable spectra, like absorption or electron energy loss spectra (EELS). Many-body perturbation Theory (MBPT) yields a framework where suitable approximations for these Green's functions can be found; in particular the Bethe-Salpeter Equation (BSE) is a good starting point for approximations for χ [11,12,13,14]. The price to be payed for a physically intuitive and in general quite reliable description is however relatively high in terms of computational cost, because now quantities like L(r, r 1 , r , r 1 , ω) appear, instead of the density n(r).…”

Section: Introductionmentioning

confidence: 99%

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Time-dependent density-functional theory for extended systems

Botti¹,

Schindlmayr²,

Sole³

et al. 2007

Rep. Prog. Phys.

217

234

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For the calculation of neutral excitations, time-dependent density functional theory (TDDFT) is an exact reformulation of the many-body time-dependent Schrödinger equation, based on the knowledge of the density instead of the many-body wavefunction. The density can be determined in an efficient scheme by solving one-particle noninteracting Schrödinger equations-the Kohn-Sham equations. The complication of the problem is hidden in the-unknown-time-dependent exchange and correlation potential that appears in the Kohn-Sham equations and for which it is essential to find good approximations. Many approximations have been suggested and tested for finite systems, where even the very simple adiabatic local density approximation (ALDA) has often proved to be successful. In the case of solids, ALDA fails to reproduce optical absorption spectra, that are instead well described by solving the Bethe-Salpeter equation of manybody perturbation theory (MBPT). On the other hand, ALDA can lead to excellent results for loss functions (at vanishing and finite momentum transfer). In view of that and thanks to recent successful developments of improved linear response kernels derived from MBPT, TDDFT is today considered a promising alternative to MBPT for the calculation of electronic spectra, even for solids. After reviewing the fundamentals of TDDFT within linear response, we discuss different approaches and a variety of applications to extended systems.

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Section: Tddft In Practise: Approximations and Problemsmentioning

confidence: 54%

Section: The Time-dependent Kohn-sham Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Time-dependent density-functional theory for extended systems

Botti¹,

Schindlmayr²,

Sole³

et al. 2007

Rep. Prog. Phys.

217

234

View full text Add to dashboard Cite

show abstract

“…No personal identifiers were included in data collection, and records were anonymized to the statistician. To reduce the variability due to technique and its related factors, this site was selected as it follows the international guidelines and protocol including Joint Commission International (JCI) accreditation and the American Heart Association (AHA) which provide evidence-based Clinical Practice Guidelines [ 18 ]. These practices are standardized throughout the hospital that is ensured by internal and external quality audits.…”

Section: Methodsmentioning

confidence: 99%

Determinant of repeat revascularization within 5 years of Percutaneous Coronary Intervention at a tertiary care hospital, Karachi: A matched case-control study

Valliani

Artani

Azam

et al. 2022

Annals of Medicine &Amp; Surgery

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“…The mortality rates are observed to be higher in the recent years in the Pakistan. These rates are much higher in the developing countries as compared to the developed countries [1][2] .…”

Section: Introductionmentioning

confidence: 99%

Gender Differences in Percutaneous Coronary Intervention Insights from the Coronary Angiography

Ahmed¹,

Shabir²

2022

PJMHS

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Background: The data from the prior studies have reported inconsistencies in the comorbidity burden, and baseline risk profile. Objective: The data provide insights into the sex difference in percutaneous coronary interventions. Study design: It is a retrospective study with statistical approach, conducted in the Department of Cardiology, Rehman Medical Institute Peshawar. Material and Methods: The study was conducted from December 2021 to May 2022. The 400 patients visited the cardiology department of the hospital were included in the study. The selected patients were enrolled in the coronary angiography. The data was collected from cardiology department of two hospitals and analyzed. The ethical and review committee of the hospital approved the study. The informed consent was taken from the selected patients. The data contains demographic features, baselines characteristics, hospital complications and PCI course. The patients having residual stenosis of less than 50% after balloon angioplasty were included in the groups rated as successful PCI groups. Results: Out of 400 patients taken from two hospitals there were 50% female. The women included in the study were 5 years older than the male patients. Women were on average 67 years old and men were 72 years old. Women in general had more cases of coronary angiography, also women were reported with cases like diabetes mellitus, and some of the cases reported congestive heart failure. The success of the procedure was more successful in case of women with 95% of female patients receiving successful procedure. Conclusions: The overview of sex linked variations in PCI was observed in this study. The hospital mortality was found to be high in case of women, there was also not significant differences found between hospital mortalities for NSTE-2CS in case of cardiogenic problems Keywords: Percutaneous coronary interventions (PCI), coronary angiography, cardiogenic shock, Non-ST elevation acute coronary syndrome (NSTE-ACS) and myocardial infraction.

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Early and long term outcome of rescue percutaneous coronary intervention (R-PCI): experience from a tertiary care center in Pakistan

Abstract: Procedural success, event free survival and mortality in our series of Rescue PCI from Pakistan are comparable to recent international trials and registries. It should be considered as a reasonable option for patients with failed thrombolysis.

Cited by 3 publications

References 24 publications

Time-dependent density-functional theory for extended systems

Time-dependent density-functional theory for extended systems

Determinant of repeat revascularization within 5 years of Percutaneous Coronary Intervention at a tertiary care hospital, Karachi: A matched case-control study

Gender Differences in Percutaneous Coronary Intervention Insights from the Coronary Angiography

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