Displaying publications 81 - 100 of 357 in total

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  1. Goh BL
    Contrib Nephrol, 2017;189:79-84.
    PMID: 27951553
    BACKGROUND: The success rate of peritoneal dialysis (PD) catheter insertion is known to vary among different operators and may be influenced by many factors such as patient and various situational factors. Traditionally, surgeons have inserted Tenckhoff catheters by mini-laparotomy or an open technique. However, with recent advances in endoscopic instrumentation and video capabilities, peritoneoscope Tenckhoff catheter insertion has become a viable approach in interventional nephrologist-initiated PD access programmes.

    SUMMARY: Nephrologist-initiated peritoneoscopic PD access programs have had a positive impact on PD penetration. The technique has been associated with a better primary success rate, superior catheter survival, less postoperative pain, shorter hospital stay, and shorter catheter break-in time compared with the conventional surgical technique. The role of interventional nephrologists in peritoneoscope Tenckhoff catheter placement is still perceived to be a relatively new advance, investigational by some, and many nephrologists and surgeons alike remain sceptical of the value of this recent option. Crucial questions often raised are how many procedures one needs to perform before being considered competent and who should be credentialed to perform the procedure or supervise trainees performing it. The evaluation of technical proficiency in a specific operation is difficult and complex. Cumulative summation (CUSUM) analysis is one option for tracking the success and failure of technical skill and examining trends over time. Key Messages: The author's facility has had good outcomes with a nephrologist-initiated peritoneoscopic PD access programme. Quality control of PD catheter insertion can be performed using CUSUM charting to monitor for primary catheter dysfunction, primary leak, and primary peritonitis.

    Matched MeSH terms: Survival Rate
  2. Cob ZC, Arshad A, Bujang JS, Ghaffar MA
    Pak J Biol Sci, 2009 May 01;12(9):676-82.
    PMID: 19634470
    This study was conducted to analyze variation in Strombus canarium larvae development, growth and survivals when cultured during wet (main reproductive period) and dry seasons. Larvae were reared at 200 larvae L(-1) in filtered seawater (0.22 microm) and fed with Isochrysis galbana at 1000 cells mL(-1) ad libitum. The culture environment was maintained at 29 +/- 1 degrees C, salinity of 30 +/- 1 PSU and photoperiod of 12:12 light dark cycle. Growth of the larvae was described on a length-at-age basis using the modified Gompertz regression. There was high correlation in shell length-at-age relationship for both wet season (R2 = 0.99) and dry season (R2 = 0.98) culture experiments. The maximal growth rate (M) and survival rate (S) were higher for larvae cultured during wet season (M = 62.44 microm day(-1), S = 14.36-2.31%), compared with dry season (M = 43.05 microm day(-1), S = 5 +/- 1.15%). The maximal attainable larval size (a) was however lower during wet season (950.19 +/- 66.93 microm shell length) compared with dry season (1343.05 +/- 586.51 microm shell length), which might be due to significantly low larvae density in the latter. Further studies are needed to investigate variation in bio-chemical composition of the egg mass, which was suggested as the main reason for the differences.
    Matched MeSH terms: Survival Rate
  3. Shaw P, Raymond G, Senthilnathan R, Kumarasamy C, Baxi S, Suresh D, et al.
    Genes (Basel), 2021 Dec 20;12(12).
    PMID: 34946979 DOI: 10.3390/genes12122029
    Background: The microRNAs (miRNAs) are small noncoding single-stranded RNAs typically 19-25 nucleotides long and regulated by cellular and epigenetic factors. These miRNAs plays important part in several pathways necessary for cancer development, an altered miRNA expression can be oncogenic or tumor-suppressive. Recent experimental results on miRNA have illuminated a different perspective of the molecular pathogenesis of head and neck cancers. Regulation of miRNA can have a detrimental effect on the efficacy of chemotherapeutic drugs in both neoadjuvant and adjuvant settings. This miRNA-induced chemoresistance can influence the prognosis and survival rate. The focus of the study is on how regulations of various miRNA levels contribute to chemoresistance in head and neck cancer (HNC). Recent findings suggest that up or down-regulation of miRNAs may lead to resistance towards various chemotherapeutic drugs, which may influence the prognosis. Methods: Studies on miRNA-specific chemoresistance in HNC were collected through literary (bibliographic) databases, including SCOPUS, PubMed, Nature, Elsevier, etc., and were systematically reviewed following PRISMA-P guidelines (Preferred Reporting Items for Systematic Review and Meta-analysis Protocol). We evaluated various miRNAs, their up and downregulation, the effect of altered regulation on the patient's prognosis, resistant cell lines, etc. The data evaluated will be represented in the form of a review and meta-analysis. Discussion: This meta-analysis aims to explore the miRNA-induced chemoresistance in HNC and thus to aid further researches on this topic. PROSPERO registration: CRD42018104657.
    Matched MeSH terms: Survival Rate
  4. Das BK, Biswal BM, Krishna Bhavaraju VM
    Malays J Med Sci, 2006 Jul;13(2):45-51.
    PMID: 22589604
    Differentiated thyroid cancer ( DTC ) is usually not very common ( incidence is about 1 % of all cancers and women are more often affected than men ). However, higher incidences has been reported in many parts of South East Asia particularly in iodine deficient areas. Unlike other solid tumors, DTC is potentially curable with documented survival rate of > 90 %. Even if the disease is not totally cured, through repeated high dose radio iodine therapy the progress of the disease can be controlled with significant improvement in quality of life for many years. This is possible if a proper and state of the art therapeutic approach is made. Since the incidence is relatively low, individual experience of treating physicians or centers is mostly inadequate leading to improper management with subsequent increase in morbidity and mortality. The purpose of this review is to evolve a rational management protocol for the treatment of thyroid cancer. Centers which do not have all facilities like high dose radio iodine therapy etc. may still follow the protocol by referring the patient for a particular step to another centre. What is needed is the awareness of the treating physician about the appropriate management of DTC. In recent years, there have been some important developments in the management of differentiated thyroid cancer like use of recombinant human thyrotropin (rhTSH), use of retinoic acid for redifferentiation etc. Some of these developments having practical relevance have been briefly mentioned.
    Matched MeSH terms: Survival Rate
  5. Loh LC, Chan LY, Tan RY, Govindaraju S, Ratnavelu K, Kumar S, et al.
    Malays J Med Sci, 2006 Jan;13(1):37-42.
    PMID: 22589589 MyJurnal
    While evidence indicates that early stage disease has better prognosis, the effect of delay in presentation and treatment of patients with non-small cell lung cancer (NSCLC) on survival is debatable. A retrospective study of 122 Malaysian patients with NSCLC was performed to examine the presentation and treatment delay, and its relation with patient survival. Median (25-75% IQR) interval between onset of symptoms and first hospital consultation (patient delay) and between first hospital consultation and treatment or decision to treat (doctor delay) were 2 (1.0- 5.0) and 1.1 (0.6-2.4) months respectively. The median survival rates in patient delay of <1, 1 to 3, and >3 months were 4.1 (9.9-1.7), 5.1 (10.9-3.2) and 5.7 (12.3-2.1) months respectively (log rank p=0.648), while in doctor delay, <30, 30-60, >60 days, the rates were 4.1 (10.8-1.8), 7.6 (13.7-3.2) and 5.3 (16.0-3.0) months respectively (p=0.557). Most patients presented and were treated in a relatively short time, and delays did not appear to influence survival. This Asian data is consistent with those from Western population, reiterating the need for public health measures that can identify disease early..
    Matched MeSH terms: Survival Rate
  6. Vincent-Chong VK, Salahshourifar I, Karen-Ng LP, Siow MY, Kallarakkal TG, Ramanathan A, et al.
    ScientificWorldJournal, 2014;2014:897523.
    PMID: 25401159 DOI: 10.1155/2014/897523
    Matrix metalloproteinase 13 (MMP13) plays a central role in the MMP activation cascade that enables degradation of the extracellular matrix and basement membranes, and it is identified as a potential driver in oral carcinogenesis. Therefore, this study aims to determine the copy number, mRNA, and protein expression of MMP13 in oral squamous cell carcinoma (OSCC) and to associate these expressions with clinicopathological parameters. Copy number, mRNA, and protein expression analysis of MMP13 were determined using real-time quantitative PCR and immunohistochemistry methods in OSCC samples. The correlations between MMP13 expressions and clinicopathological parameters were evaluated, and the significance of MMP13 as a prognostic factor was determined. Despite discrepancies between gene amplification and mRNA and protein overexpression rates, OSCC cases showed high amplification of MMP13 and overexpression of MMP13 at both mRNA and protein levels. High level of MMP13 protein expression showed a significant correlation with lymph node metastasis (P = 0.011) and tumor staging (P = 0.002). Multivariate Cox regression model analysis revealed that high level of mRNA and protein expression of MMP13 were significantly associated with poor prognosis (P < 0.050). Taken together, these observations indicate that the MMP13 protein overexpression could be considered as a prognostic marker of OSCC.
    Matched MeSH terms: Survival Rate/trends
  7. Singh RB, Suh IL, Singh VP, Chaithiraphan S, Laothavorn P, Sy RG, et al.
    J Hum Hypertens, 2000 11 30;14(10-11):749-63.
    PMID: 11095165
    Reliable statistics related to the prevalence, incidence and mortality of hypertension and stroke are not available from Asia. The data may be in national or institutional reports or journals published in the local language only. The mortality rate for stroke has been on the decline since the mid 1960s in the developed countries of Asia, such as Australia, New Zealand, and Japan, with some improvement in Singapore, Taiwan and Hong Kong, some areas of China and Malaysia about 15 years later. In India, China, Philippines, Thailand, Sri Lanka, Iran, Pakistan, Nepal, there has been a rapid increase in stroke mortality and prevalence of hypertension. The prevalence of hypertension according to new criteria (>140/90 mm Hg) varies between 15-35% in urban adult populations of Asia. In rural populations, the prevalence is two to three times lower than in urban subjects. Hypertension and stroke occur at a relatively younger age in Asians and the risk of hypertension increases at lower levels of body mass index of 23-25 kg/m2. Overweight, sedentary behaviour, alcohol, higher social class, salt intake, diabetes mellitus and smoking are risk factors for hypertension in most of the countries of Asia. In Australia, New Zealand and Japan, lower social class is a risk factor for hypertension and stroke. Population-based long-term follow-up studies are urgently needed to demonstrate the association of risk factors with hypertension in Asia. However prevention programmes should be started based on cross-sectional surveys and case studies without waiting for the cohort studies.
    Matched MeSH terms: Survival Rate/trends
  8. Roth GA, Johnson C, Abajobir A, Abd-Allah F, Abera SF, Abyu G, et al.
    J Am Coll Cardiol, 2017 Jul 04;70(1):1-25.
    PMID: 28527533 DOI: 10.1016/j.jacc.2017.04.052
    BACKGROUND: The burden of cardiovascular diseases (CVDs) remains unclear in many regions of the world.

    OBJECTIVES: The GBD (Global Burden of Disease) 2015 study integrated data on disease incidence, prevalence, and mortality to produce consistent, up-to-date estimates for cardiovascular burden.

    METHODS: CVD mortality was estimated from vital registration and verbal autopsy data. CVD prevalence was estimated using modeling software and data from health surveys, prospective cohorts, health system administrative data, and registries. Years lived with disability (YLD) were estimated by multiplying prevalence by disability weights. Years of life lost (YLL) were estimated by multiplying age-specific CVD deaths by a reference life expectancy. A sociodemographic index (SDI) was created for each location based on income per capita, educational attainment, and fertility.

    RESULTS: In 2015, there were an estimated 422.7 million cases of CVD (95% uncertainty interval: 415.53 to 427.87 million cases) and 17.92 million CVD deaths (95% uncertainty interval: 17.59 to 18.28 million CVD deaths). Declines in the age-standardized CVD death rate occurred between 1990 and 2015 in all high-income and some middle-income countries. Ischemic heart disease was the leading cause of CVD health lost globally, as well as in each world region, followed by stroke. As SDI increased beyond 0.25, the highest CVD mortality shifted from women to men. CVD mortality decreased sharply for both sexes in countries with an SDI >0.75.

    CONCLUSIONS: CVDs remain a major cause of health loss for all regions of the world. Sociodemographic change over the past 25 years has been associated with dramatic declines in CVD in regions with very high SDI, but only a gradual decrease or no change in most regions. Future updates of the GBD study can be used to guide policymakers who are focused on reducing the overall burden of noncommunicable disease and achieving specific global health targets for CVD.

    Matched MeSH terms: Survival Rate/trends
  9. Goh VJ, Tromp J, Teng TK, Tay WT, Van Der Meer P, Ling LH, et al.
    ESC Heart Fail, 2018 08;5(4):570-578.
    PMID: 29604185 DOI: 10.1002/ehf2.12279
    AIMS: Recent international heart failure (HF) guidelines recognize anaemia as an important comorbidity contributing to poor outcomes in HF, based on data mainly from Western populations. We sought to determine the prevalence, clinical correlates, and prognostic impact of anaemia in patients with HF with reduced ejection fraction across Asia.

    METHODS AND RESULTS: We prospectively studied 3886 Asian patients (60 ± 13 years, 21% women) with HF (ejection fraction ≤40%) from 11 regions in the Asian Sudden Cardiac Death in Heart Failure study. Anaemia was defined as haemoglobin <13 g/dL (men) and <12 g/dL (women). Ethnic groups included Chinese (33.0%), Indian (26.2%), Malay (15.1%), Japanese/Korean (20.2%), and others (5.6%). Overall, anaemia was present in 41%, with a wide range across ethnicities (33-54%). Indian ethnicity, older age, diabetes, and chronic kidney disease were independently associated with higher odds of anaemia (all P 

    Matched MeSH terms: Survival Rate/trends
  10. Hedayati E, Papakonstantinou A, Gernaat SAM, Altena R, Brand JS, Alfredsson J, et al.
    Eur Heart J Qual Care Clin Outcomes, 2020 04 01;6(2):147-155.
    PMID: 31328233 DOI: 10.1093/ehjqcco/qcz039
    AIMS: Heart failure (HF) patients diagnosed with breast cancer (BC) may have a higher risk of death, and different HF presentation and treatment than patients without BC.

    METHODS AND RESULTS: A total of 14 998 women with incident HF (iHF) or prevalent HF (pHF) enrolled in the Swedish HF Registry within and after 1 month since HF diagnosis, respectively, between 2008 and 2013. Patients were linked with the National Patient-, Cancer-, and Cause-of-Death Registry. Two hundred and ninety-four iHF and 338 pHF patients with BC were age-matched to 1470 iHF and 1690 pHF patients without BC. Comorbidity and treatment characteristics were compared using the χ2 tests for categories. Cox proportional hazard models assessed the hazard ratio (HR) and 95% confidence intervals (95% CIs) of all-cause and cardiovascular mortality among HF patients with and without BC. In the pHF group, BC patients had less often myocardial infarction (21.6% vs. 28.6%, P 

    Matched MeSH terms: Survival Rate/trends
  11. Yasin NF, Abdul Rashid ML, Ajit Singh V
    J Orthop Surg (Hong Kong), 2020 2 23;28(1):2309499019896662.
    PMID: 32077796 DOI: 10.1177/2309499019896662
    INTRODUCTION: Management of osteosarcoma has evolved considerably for the past two decades and there have been changes of practices especially pertaining to chemotherapy regime. This is a review of our cases in the past 15 years.

    METHOD: This is a retrospective survival analysis study of 128 patients treated at University Malaya Medical Centre (UMMC) from 1997 to 2011.

    RESULTS: There were 80 (62.5%) male and 48 (37.5%) female patients with the median age being 15 (5-59). Majority had osteosarcoma of extremities (94.5%). More than 60% patients developed metastasis throughout the course of treatment with 39% presenting with lung metastasis. Osteoblastic osteosarcoma was the commonest subtype (65.6%). Of the 109 patients treated surgically, 84 patients (65.6%) underwent limb salvage surgery while the rest underwent amputation. Seventy-one per cent of patients completed treatment with local recurrence rate of 22.7%. The 5-year and 10-year survival rates were 56.31% (95% CI: 46.20, 65.24) and 22.33% (95% CI: 14.86, 30.76), respectively. The 5-year event-free survival was 52.94% (95% CI: 41.83, 62.87). In multivariate analysis, the independent prognostic factors were presence of metastasis and completion of treatment for both 5-year and 10-year overall survival. Good histological response was only significant for multivariate analysis at 5 years. Patients with metastasis had a hazard ratio of 20.4 at 5 years and 3.26 at 10 years.

    CONCLUSION: Overall survival rate for osteosarcoma patients at our centre was comparably higher than other centres in the region. Two independent risk factors for survival are metastatic status and completion of treatment. A standardized chemotherapy regime is essential for long-term survival.

    Matched MeSH terms: Survival Rate/trends
  12. Chong LA, Khalid F
    Singapore Med J, 2016 Feb;57(2):77-80.
    PMID: 26893078 DOI: 10.11622/smedj.2016032
    There is increased awareness of paediatric palliative care in Malaysia, but no local published data on home care services. We aimed to describe the paediatric experience at Hospis Malaysia, a community-based palliative care provider in Malaysia.
    Matched MeSH terms: Survival Rate/trends
  13. Berwanger O, Abdelhamid M, Alexander T, Alzubaidi A, Averkov O, Aylward P, et al.
    Clin Cardiol, 2018 Oct;41(10):1322-1327.
    PMID: 30098028 DOI: 10.1002/clc.23043
    Primary percutaneous coronary intervention (PCI) is the preferred reperfusion method in patients with ST-segment elevation myocardial infarction (STEMI). In patients with STEMI who cannot undergo timely primary PCI, pharmacoinvasive treatment is recommended, comprising immediate fibrinolytic therapy with subsequent coronary angiography and rescue PCI if needed. Improving clinical outcomes following fibrinolysis remains of great importance for the many patients globally for whom rapid treatment with primary PCI is not possible. For patients with acute coronary syndrome who underwent primary PCI, the PLATO trial demonstrated superior efficacy of ticagrelor relative to clopidogrel. Results in the predefined subgroup of patients with STEMI were consistent with the overall PLATO trial. Patients who received fibrinolytic therapy in the 24 hours before randomization were excluded from PLATO, and there is thus a lack of data on the safety of using ticagrelor in conjunction with fibrinolytic therapy in the first 24 hours after STEMI. The TREAT study addresses this knowledge gap; patients with STEMI who had symptom onset within the previous 24 hours and had received fibrinolytic therapy (of whom 89.4% had also received clopidogrel) were randomized to treatment with ticagrelor or clopidogrel (median time between fibrinolysis and randomization: 11.5 hours). At 30 days, ticagrelor was found to be non-inferior to clopidogrel for the primary safety outcome of Thrombolysis in Myocardial Infarction (TIMI)-defined first major bleeding. Considering together the results of the PLATO and TREAT studies, initiating or switching to treatment with ticagrelor within the first 24 hours after STEMI in patients receiving fibrinolysis is reasonable.
    Matched MeSH terms: Survival Rate/trends
  14. Ahrens I, Averkov O, Zúñiga EC, Fong AYY, Alhabib KF, Halvorsen S, et al.
    Clin Cardiol, 2019 Oct;42(10):1028-1040.
    PMID: 31317575 DOI: 10.1002/clc.23232
    Clinical guidelines for the treatment of patients with non-ST-segment elevation myocardial infarction (NSTEMI) recommend an invasive strategy with cardiac catheterization, revascularization when clinically appropriate, and initiation of dual antiplatelet therapy regardless of whether the patient receives revascularization. However, although patients with NSTEMI have a higher long-term mortality risk than patients with ST-segment elevation myocardial infarction (STEMI), they are often treated less aggressively; with those who have the highest ischemic risk often receiving the least aggressive treatment (the "treatment-risk paradox"). Here, using evidence gathered from across the world, we examine some reasons behind the suboptimal treatment of patients with NSTEMI, and recommend approaches to address this issue in order to improve the standard of healthcare for this group of patients. The challenges for the treatment of patients with NSTEMI can be categorized into four "P" factors that contribute to poor clinical outcomes: patient characteristics being heterogeneous; physicians underestimating the high ischemic risk compared with bleeding risk; procedure availability; and policy within the healthcare system. To address these challenges, potential approaches include: developing guidelines and protocols that incorporate rigorous definitions of NSTEMI; risk assessment and integrated quality assessment measures; providing education to physicians on the management of long-term cardiovascular risk in patients with NSTEMI; and making stents and antiplatelet therapies more accessible to patients.
    Matched MeSH terms: Survival Rate/trends
  15. Saheb Sharif-Askari N, Sulaiman SA, Saheb Sharif-Askari F, Al Sayed Hussain A, Al-Mulla AA
    Int J Cardiol, 2014 Apr 1;172(3):e491-3.
    PMID: 24462141 DOI: 10.1016/j.ijcard.2014.01.002
    Matched MeSH terms: Survival Rate/trends
  16. Chan KK, Dassanayake B, Deen R, Wickramarachchi RE, Kumarage SK, Samita S, et al.
    World J Surg Oncol, 2010;8:82.
    PMID: 20840793 DOI: 10.1186/1477-7819-8-82
    This study compares clinico-pathological features in young (<40 years) and older patients (>50 years) with colorectal cancer, survival in the young and the influence of pre-operative clinical and histological factors on survival.
    Matched MeSH terms: Survival Rate/trends
  17. Seow SC, Chai P, Lee YP, Chan YH, Kwok BW, Yeo TC, et al.
    J. Card. Fail., 2007 Aug;13(6):476-81.
    PMID: 17675062
    Prognostic indicators and mortality in multiethnic Southeast Asian patients with heart failure (HF) may be different.
    Matched MeSH terms: Survival Rate/trends
  18. Selvarajah S, Fong AY, Selvaraj G, Haniff J, Hairi NN, Bulgiba A, et al.
    Am J Cardiol, 2013 May 1;111(9):1270-6.
    PMID: 23415636 DOI: 10.1016/j.amjcard.2013.01.271
    Developing countries face challenges in providing the best reperfusion strategy for patients with ST-segment elevation myocardial infarction because of limited resources. This causes wide variation in the provision of cardiac care. The aim of this study was to assess the impact of variation in cardiac care provision and reperfusion strategies on patient outcomes in Malaysia. Data from a prospective national registry of acute coronary syndromes were used. Thirty-day all-cause mortality in 4,562 patients with ST-segment elevation myocardial infarctions was assessed by (1) cardiac care provision (specialist vs nonspecialist centers), and (2) primary reperfusion therapy (thrombolysis or primary percutaneous coronary intervention [P-PCI]). All patients were risk adjusted by Thrombolysis In Myocardial Infarction (TIMI) risk score. Thrombolytic therapy was administered to 75% of patients with ST-segment elevation myocardial infarctions (12% prehospital and 63% in-hospital fibrinolytics), 7.6% underwent P-PCI, and the remainder received conservative management. In-hospital acute reperfusion therapy was administered to 68% and 73% of patients at specialist and nonspecialist cardiac care facilities, respectively. Timely reperfusion was low, at 24% versus 31%, respectively, for in-hospital fibrinolysis and 28% for P-PCI. Specialist centers had statistically significantly higher use of evidence-based treatments. The adjusted 30-day mortality rates for in-hospital fibrinolytics and P-PCI were 7% (95% confidence interval 5% to 9%) and 7% (95% confidence interval 3% to 11%), respectively (p = 0.75). In conclusion, variation in cardiac care provision and reperfusion strategy did not adversely affect patient outcomes. However, to further improve cardiac care, increased use of evidence-based resources, improvement in the quality of P-PCI care, and reduction in door-to-reperfusion times should be achieved.
    Matched MeSH terms: Survival Rate/trends
  19. Lombardo E
    Genus, 1983 Jan-Dec;39(1-4):167-73.
    PMID: 12266118
    "A tentative approximation of the expectation of life at 60-65 years, for populations with defective demographic statistics, is explored and expounded on the basis of a recent Horiuchi and [Coale] paper." The method is applied to data for El Salvador, Mexico, Puerto Rico, and Peninsular Malaysia, and it is shown that the method can be used on actual data, although it requires some drastic rounding off. (summary in ENG, FRE)
    Matched MeSH terms: Survival Rate*
  20. Zhang S, Ching CK, Huang D, Liu YB, Rodriguez-Guerrero DA, Hussin A, et al.
    Heart Rhythm, 2020 03;17(3):468-475.
    PMID: 31561030 DOI: 10.1016/j.hrthm.2019.09.023
    BACKGROUND: Implantable cardioverter-defibrillators (ICDs) are underutilized in Asia, Latin America, Eastern Europe, the Middle East, and Africa. The Improve SCA Study is the largest prospective study to evaluate the benefit of ICD therapy in underrepresented geographies. This analysis reports the primary objective of the study.

    OBJECTIVES: The objectives of this study was to determine whether patients with primary prevention (PP) indications with specific risk factors (1.5PP: syncope, nonsustained ventricular tachycardia, premature ventricular contractions >10/h, and low ventricular ejection fraction <25%) are at a similar risk of life-threatening arrhythmias as patients with secondary prevention (SP) indications and to evaluate all-cause mortality rates in 1.5PP patients with and without devices.

    METHODS: A total of 3889 patients were included in the analysis to evaluate ventricular tachycardia or fibrillation therapy and mortality rates. Patients were stratified as SP (n = 1193) and patients with PP indications. The PP cohort was divided into 1.5PP patients (n = 1913) and those without any 1.5PP criteria (n = 783). The decision to undergo ICD implantation was left to the patient and/or physician. The Cox proportional hazards model was used to compute hazard ratios.

    RESULTS: Patients had predominantly nonischemic cardiomyopathy. The rate of ventricular tachycardia or fibrillation in 1.5PP patients was not equivalent (within 30%) to that in patients with SP indications (hazard ratio 0.47; 95% confidence interval 0.38-0.57) but was higher than that in PP patients without any 1.5PP criteria (hazard ratio 0.67; 95% confidence interval 0.46-0.97) (P = .03). There was a 49% relative risk reduction in all-cause mortality in ICD implanted 1.5PP patients. In addition, the number needed to treat to save 1 life over 3 years was 10.0 in the 1.5PP cohort vs 40.0 in PP patients without any 1.5PP criteria.

    CONCLUSION: These data corroborate the mortality benefit of ICD therapy and support extension to a selected PP population from underrepresented geographies.

    Matched MeSH terms: Survival Rate/trends
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