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Wong CWY, Li PWC, Yu DSF, Ho BMH, Chan BS. Estimated prevalence of frailty and prefrailty in patients undergoing coronary artery or valvular surgeries/procedures: A systematic review and proportional meta-analysis. Ageing Res Rev 2024; 96:102266. [PMID: 38462047 DOI: 10.1016/j.arr.2024.102266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/23/2024] [Accepted: 03/06/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND The aging population has led to an increasing number of older patients undergoing cardiac surgeries/procedures. Frailty and prefrailty have emerged as important prognostic indicators among these patients. This proportional meta-analysis estimated the prevalence of frailty and prefrailty among patients undergoing cardiac surgery. METHODS We searched seven electronic databases for observational studies that used validated measure(s) of frailty and reported prevalence data on frailty and/or prefrailty in older patients undergoing coronary artery or valvular surgeries or transcatheter procedures. Meta-analyses were performed using a random-effects model. RESULTS One hundred and one articles involving 626,863 patients were included. The pooled prevalence rates of frailty and prefrailty were 28% (95% confidence interval [CI]: 23%-33%) and 40% (95% CI: 31%-50%), respectively, for patients scheduled for open-heart surgeries and 40% (95% CI: 36%-45%) and 43% (95% CI: 34%-53%), respectively, for patients undergoing transcatheter procedures. Frailty measured using a multidimensional approach identified a higher proportion of frail patients when compared with measures solely focused on physical frailty. Older age, female sex, and lower body mass index and hemoglobin concentrations were significantly associated with higher frailty prevalence. Moreover, countries with higher gross domestic product spent on healthcare exhibited a higher frailty prevalence. CONCLUSION Frailty represents a considerable health challenge among patients undergoing cardiac surgeries/procedures. Routine screening for frailty should be considered during perioperative care planning.
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Affiliation(s)
- Cathy W Y Wong
- School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong , Hong Kong
| | - Polly W C Li
- School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong , Hong Kong.
| | - Doris S F Yu
- School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong , Hong Kong
| | - Benjamin M H Ho
- School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong , Hong Kong
| | - Bernice Shinyi Chan
- School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong , Hong Kong
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2
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Lundahl C, Kragholm K, Tayal B, Karasoy D, Andersen NH, Strange JE, Olesen JB, Østergaard L, Fosbøl E, Torp-Pedersen C, Søgaard P, Terkelsen CJ, Nissen H, De Backer O, Freeman PM. Temporal Trends in Patient Characteristics and Outcomes of Transcatheter Aortic Valve Implantation and Surgical Aortic Valve Replacement: A Nationwide Study. Am J Cardiol 2024; 211:299-306. [PMID: 37984636 DOI: 10.1016/j.amjcard.2023.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 11/05/2023] [Accepted: 11/11/2023] [Indexed: 11/22/2023]
Abstract
With increased use of transcatheter aortic valve implantation (TAVI) in treatment of aortic stenosis, it is important to evaluate real life data trends in outcomes. This nationwide register-based study aimed to present an outlook on temporal trends in characteristics and outcomes, including mortality. First-time consecutive Danish patients who underwent TAVI from 2010 to 2019 were included in this study. The chi-square and Kruskal-Wallis tests were performed to assess the differences in the characteristics over time and Cochrane-Armitage trend tests were used to examine changes in complications and mortality. Between 2010 and 2019, 4,847 patients (54.6% men, median age 82 [quartile 1 to quartile 3: 77 to 85] years) underwent first-time TAVI. A statistically significant decrease over time was observed for preprocedural hypertension, ischemic heart disease, and heart failure, whereas preexisting chronic obstructive lung disease and preprocedural pacemaker remained stable. We observed a significant decrease in 30- and 90-day postoperative preprocedural pacemaker implantation from 2011 to 2017, with 15.1% and 15.9% in 2011 and 8.6% and 8.9% in 2017, respectively. The incidence of for 30- and 90-day heart failure significantly decreased from 19.3% and 20.3% to 8.5% and 9.1%, respectively. We observed significant changes for 30-day atrial fibrillation, whereas the changes over time for 90-day atrial fibrillation and 30- and 90-day stroke/transient ischemic attack remained insignificant. The all-cause mortality within 30- and 90 days significantly decreased over time from 6.7% and 9.2% in 2011 to 1.5% and 2.7% in 2019 and 2016, respectively. In conclusion, this national study provides general insight on the trends of complications and mortality of TAVI, demonstrating significant reductions over time.
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Affiliation(s)
- Camilla Lundahl
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
| | - Kristian Kragholm
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Unit of Clinical Biostatistics and Epidemiology, Aalborg University Hospital, Aalborg, Denmark
| | - Bhupendar Tayal
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | | | - Niels H Andersen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Jarl E Strange
- Department of Cardiology, Copenhagen University Hospital Herlev and Gentofte, Hellerup, Denmark; Department of Cardiology, the Heart Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Jonas B Olesen
- Department of Cardiology, Copenhagen University Hospital Herlev and Gentofte, Hellerup, Denmark
| | - Lauge Østergaard
- Department of Cardiology, the Heart Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Emil Fosbøl
- Department of Cardiology, the Heart Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Department of Cardiology and Clinical Research, Nordsjaellands Hospital, Hillerød, Denmark
| | - Peter Søgaard
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Christian J Terkelsen
- Department of Cardiology, Aarhus University Hospital, Denmark; The Danish Heart Foundation, Copenhagen, Denmark
| | - Henrik Nissen
- Department of Cardiology, Odense University Hospital, Denmark
| | - Ole De Backer
- Department of Cardiology, the Heart Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Phillip M Freeman
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
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Oks D, Houzeaux G, Vázquez M, Neidlin M, Samaniego C. Effect of TAVR commissural alignment on coronary flow: A fluid-structure interaction analysis. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2023; 242:107818. [PMID: 37837886 DOI: 10.1016/j.cmpb.2023.107818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 09/07/2023] [Accepted: 09/15/2023] [Indexed: 10/16/2023]
Abstract
BACKGROUND AND OBJECTIVES Coronary obstruction is a complication that may affect patients receiving Transcatheter Aortic Valve Replacement (TAVR), with catastrophic consequences and long-term negative effects. To enable healthy coronary perfusion, it is fundamental to appropriately position the device with respect to the coronary ostia. Nonetheless, most TAVR delivery systems do not control commissural alignment to do so. Moreover, no in silico study has directly assessed the effect of commissural alignment on coronary perfusion. This work aims to evaluate the effect of TAVR commissural alignment on coronary perfusion and device performance. METHODS A two-way computational fluid-structure interaction model is used to predict coronary perfusion at different commissural alignments. Moreover, in each scenario, hemodynamic biomarkers are evaluated to assess device performance. RESULTS Commissural misalignment is shown to reduce the total coronary perfusion by -3.2% and the flow rate to a single coronary branch by -6.8%. It is also observed to impair valvular function by reducing the systolic geometric orifice area by -2.5% and increasing the systolic transvalvular pressure gradients by +5.3% and the diastolic leaflet stresses by +16.0%. CONCLUSIONS The present TAVR patient model indicates that coronary perfusion, hemodynamic and structural performance are minimized when the prosthesis commissures are fully misaligned with the native ones. These results support the importance of enabling axial control in new TAVR delivery catheter systems and defining recommended values of commissural alignment in upcoming clinical treatment guidelines.
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Affiliation(s)
- David Oks
- Barcelona Supercomputing Center, Computer Applications in Science and Engineering, Plaça d'Eusebi Güell, 1-3, 08034, Barcelona, Spain; ELEM Biotech SL, Plaça Pau Vila, 1, Bloc A, Planta 3, Porta 3A1, 08003, Barcelona, Spain.
| | - Guillaume Houzeaux
- Barcelona Supercomputing Center, Computer Applications in Science and Engineering, Plaça d'Eusebi Güell, 1-3, 08034, Barcelona, Spain
| | - Mariano Vázquez
- Barcelona Supercomputing Center, Computer Applications in Science and Engineering, Plaça d'Eusebi Güell, 1-3, 08034, Barcelona, Spain; ELEM Biotech SL, Plaça Pau Vila, 1, Bloc A, Planta 3, Porta 3A1, 08003, Barcelona, Spain
| | - Michael Neidlin
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Medical Faculty, RWTH Aachen University, Pauwelstraße 20, 52074, Aachen, Germany
| | - Cristóbal Samaniego
- Barcelona Supercomputing Center, Computer Applications in Science and Engineering, Plaça d'Eusebi Güell, 1-3, 08034, Barcelona, Spain
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Solla-Suárez P, Avanzas P, Fernández-Fernández M, Pascual I, Moreno-Planillo C, Almendárez M, López-Álvarez E, Álvarez R, Coto-Montes A, Morís C, Gutiérrez-Rodríguez J. Functional continuum: independent predictor of one-year mortality and key decision-making element in older adults with severe aortic stenosis amenable to aortic valve replacement. Aging Clin Exp Res 2023; 35:323-331. [PMID: 36417136 DOI: 10.1007/s40520-022-02300-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/02/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVES The impact of functional capacity over the entire functional continuum in older adults undergoing aortic valve replacement (AVR) has not been studied to date. This study aims to analyze 1.- the distribution of a cohort of older adults presenting severe aortic stenosis (AS) amenable to AVR in the different categories of the Functional Continuum Scale (FCS); 2.- its association with decision-making regarding valve disease; and 3.- its impact upon the one-year mortality rate of surgical (SAVR), transcatheter (TAVR) aortic valve replacement, or the decision to provide conservative management (OMT). METHODS This prospective study included patients from the FRESAS (FRailty-Evaluation-in-Severe-Aortic-Stenosis) registry evaluated by the reference Heart-Team of a region in northern Spain. All the patients underwent comprehensive geriatric assessment. RESULTS The study comprised 257 patients aged 84.0 ± 3.9 years. MANAGEMENT SAVR: 25.3%, TAVR: 58.0% and OMT: 16.7%. Increased patient functional capacity was associated with an increased tendency to perform more invasive valve disease treatment. The overall one-year survival rate was 81.3%. One-year all-cause mortality: FCS-1 to FCS-2 "robust" 11.5%, FCS-3 to FCS-4 "prefrail" 14.7%, FCS-5 "frail" 19.2% and FCS-6 to FCS-8 "dependent" 45.0%; p < 0.001. Adjusted mortality analysis: FCS with HR = 1.206 [95%CI, 0.999-1.451 (p = 0.051)]; EuroSCORE-II with HR = 1.071 [95%CI, 1.006-1.161 (p = 0.033)]; and OMT with HR = 2.840 [95%CI, 1.409-5.772 (p = 0.004)] were retained in the final multivariable logistic regression model. CONCLUSIONS In older AS patients amenable to AVR, the FCS is a useful predictive tool that may aid clinical decision-making.
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Affiliation(s)
- Pablo Solla-Suárez
- Geriatrics Department, Geriatrics Clinical Management Area, Hospital Monte Naranco, HMN, Oviedo, Spain. .,Health Research Institute of Asturias, ISPA, Oviedo, Spain.
| | - Pablo Avanzas
- Cardiology Department, Cardiac Area, Hospital Universitario Central de Asturias, HUCA, Oviedo, Spain.,Health Research Institute of Asturias, ISPA, Oviedo, Spain.,University of Oviedo, UOV, Oviedo, Spain
| | - Marta Fernández-Fernández
- Geriatrics Department, Geriatrics Clinical Management Area, Hospital Monte Naranco, HMN, Oviedo, Spain
| | - Isaac Pascual
- Cardiology Department, Cardiac Area, Hospital Universitario Central de Asturias, HUCA, Oviedo, Spain.,Health Research Institute of Asturias, ISPA, Oviedo, Spain.,University of Oviedo, UOV, Oviedo, Spain
| | - Carmen Moreno-Planillo
- Geriatrics Department, Geriatrics Clinical Management Area, Hospital Monte Naranco, HMN, Oviedo, Spain
| | - Marcel Almendárez
- Cardiology Department, Cardiac Area, Hospital Universitario Central de Asturias, HUCA, Oviedo, Spain.,Health Research Institute of Asturias, ISPA, Oviedo, Spain
| | - Eva López-Álvarez
- Geriatrics Department, Geriatrics Clinical Management Area, Hospital Monte Naranco, HMN, Oviedo, Spain
| | - Rut Álvarez
- Cardiology Department, Cardiac Area, Hospital Universitario Central de Asturias, HUCA, Oviedo, Spain.,Health Research Institute of Asturias, ISPA, Oviedo, Spain
| | - Ana Coto-Montes
- Health Research Institute of Asturias, ISPA, Oviedo, Spain.,University of Oviedo, UOV, Oviedo, Spain.,Institute of Neurosciences of the Principality of Asturias, INEUROPA, Oviedo, Spain
| | - César Morís
- Cardiology Department, Cardiac Area, Hospital Universitario Central de Asturias, HUCA, Oviedo, Spain.,Health Research Institute of Asturias, ISPA, Oviedo, Spain.,University of Oviedo, UOV, Oviedo, Spain
| | - José Gutiérrez-Rodríguez
- Geriatrics Department, Geriatrics Clinical Management Area, Hospital Monte Naranco, HMN, Oviedo, Spain.,Health Research Institute of Asturias, ISPA, Oviedo, Spain
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Lakbar I, Delamarre L, Einav S, Leone M. Endocarditis in the intensive care unit: an update. Curr Opin Crit Care 2022; 28:503-512. [PMID: 35942691 DOI: 10.1097/mcc.0000000000000973] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The incidence of infective endocarditis (IE) is increasing worldwide, resulting in a higher number of patients with IE being admitted to intensive care units (ICU). Nearly half of patients with IE develop a complication during their clinical course. However, few well conducted studies or reviews are devoted to critically ill IE patients. This review discusses the contemporary perioperative and intensive care literature. RECENT FINDINGS IE epidemiology is changing towards elderly and frail patients. ICU patients are at risk of risk of developing IE because they are often in a pro-inflammatory state and many also have several indwelling catheters, which favors infection. Increased performance and recent advances in cardiac imaging allow for easier diagnosis of EI, but the applicability of these techniques to ICU patients is still relatively limited. New developments in antibiotic treatment and adjunctive therapies are explored further in this review. SUMMARY The lack of evidence on ICU patients with IE highlights the critical importance of multidisciplinary decision-making and the need for further research.
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Affiliation(s)
- Ines Lakbar
- Department of Anesthesiology and Intensive Care Unit, Aix Marseille University, Assistance Publique Hôpitaux Universitaires de Marseille, Nord Hospital, Marseille, France
| | - Louis Delamarre
- Department of Anesthesiology and Intensive Care Unit, Aix Marseille University, Assistance Publique Hôpitaux Universitaires de Marseille, Nord Hospital, Marseille, France
| | - Sharon Einav
- General Intensive Care Unit of the Shaare Zedek Medical Centre and the Hebrew University Faculty of Medicine, Jerusalem, Israel
| | - Marc Leone
- Department of Anesthesiology and Intensive Care Unit, Aix Marseille University, Assistance Publique Hôpitaux Universitaires de Marseille, Nord Hospital, Marseille, France
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Wiechmann RJ, Lee LY, Yu Y, Prillinger JB, Gutfinger D, Blakeman B. Ten-year outcomes of surgical aortic valve replacement with a contemporary supra-annular porcine valve in a Medicare population. JTCVS OPEN 2022; 12:84-102. [PMID: 36590734 PMCID: PMC9801294 DOI: 10.1016/j.xjon.2022.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/26/2022] [Accepted: 08/09/2022] [Indexed: 01/04/2023]
Abstract
Objective Bioprosthetic surgical aortic valve replacement remains an important treatment option in the era of transcatheter interventions. Real-world outcomes are not well characterized because of limited prospective follow-up studies. We present the 10-year clinical outcomes of Medicare beneficiaries undergoing surgical aortic valve replacement with a contemporary supra-annular porcine valve. Methods This is a single-arm observational study using Medicare fee-for-service claims data. De-identified patients undergoing surgical aortic valve replacement with the Epic Supra valve (Abbott) in the United States between January 1, 2008, and December 31, 2019, were selected by International Classification of Diseases 9th and 10th Revision procedure codes and then linked to a manufacturer device tracking database. All-cause mortality, heart failure rehospitalization, and aortic valve reintervention (surgical or transcatheter valve-in-valve) were evaluated at 10 years using the Kaplan-Meier method. Results Among 272,591 Medicare beneficiaries undergoing surgical aortic valve replacement during the study period, 11,685 received the Epic Supra valve, of whom 51.6% (6029) had underlying heart failure. Mean age was 76 ± 7 years. Survival at 10 years in patients without preoperative heart failure was 43.5% (95% confidence interval, 41.8-45.2) compared with 24.1% (95% confidence interval, 22.6-25.5) for patients with heart failure (P < .001). The 10-year freedom from heart failure rehospitalization was 64.0% (95% confidence interval, 62.6-65.3). Freedom from aortic valve reintervention was 94.6% (95% confidence interval, 93.8-95.3) at 10 years. Conclusions This real-world nationwide study of US Medicare beneficiaries receiving the Epic Supra valve demonstrates more than 94% freedom from all-cause valve reintervention and 64% freedom from heart failure rehospitalization at 10 years postimplant. Long-term survival and heart failure rehospitalization in this population with aortic valve disease undergoing surgical aortic valve replacement were found to be impacted by underlying heart failure.
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Key Words
- CABG, coronary artery bypass grafting
- CI, confidence interval
- CMS, Centers for Medicare & Medicaid Service
- FFS, fee-for-service
- HF, heart failure
- HR, hazard ratio
- ICD-10, International Classification of Diseases, Tenth Revision
- ICD-9, International Classification of Diseases, Ninth Revision
- LVAD, left ventricular assist device
- SAVR, surgical aortic valve replacement
- TAVI, transcatheter aortic valve implantation
- VIV, valve-in-valve
- aortic valve replacement
- durability
- heart failure
- porcine valve
- survival
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Affiliation(s)
- Robert J. Wiechmann
- Mayo Clinic Health System, Cardiothoracic Surgery, Eau Claire, Wis,Address for reprints: Robert J. Wiechmann, MD, Mayo Clinic Health System, 1400 Bellinger St, Eau Claire, WI 54702.
| | - Leonard Y. Lee
- Division of Cardiothoracic Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
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Kwak MJ, Digbeu BD, des Bordes J, Rianon N. The association of frailty with clinical and economic outcomes among hospitalized older adults with hip fracture surgery. Osteoporos Int 2022; 33:1477-1484. [PMID: 35178610 DOI: 10.1007/s00198-021-06215-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 10/16/2021] [Indexed: 10/19/2022]
Abstract
UNLABELLED Frailty is a common condition among older adults with hip fracture. In our study analyzing National Inpatient Sample data, frailty was found to be associated with up to six times increase in in-patient mortality, 55% increased length of hospital stay, and 29% increase in hospital cost. INTRODUCTION Hip fracture is a significant public health issue posing adverse health outcomes and substantial economic burden to patients and society. Frailty is a prevalent geriatric condition associated with poor clinical outcome among older adults. The association between hip fracture and frailty on both clinical and economic outcomes at the national level has not been estimated. We aimed to determine the association between frailty and in-hospital mortality, length of hospital stay (LOS), and total hospital cost among older patients aged ≥ 65 years who underwent surgery for hip fracture. METHODS We did an analysis of administrative data using the National Inpatient Sample (NIS) data from 2016 and 2017. Our analysis included data on 29,735 hospitalizations. We first conducted a descriptive analysis of the patient characteristics (demographics and clinical) and hospital-related factors. Three multivariable regression analysis models were then used to determine independent associations between frailty and in-hospital mortality, LOS, and total hospital cost. All three models were adjusted for patients' demographic and clinical characteristics and hospital-related factors. RESULTS Moderate and high frailty risk were associated with higher odds of death (OR = 2.94 and 95% CI 1.91-4.51 and OR = 5.99 and 95% CI 3.79-9.47), increased LOS (17% and 55%, p < 0.0001), and higher total hospital cost (7% and 29%, p < 0.0001) respectively compared to low frailty risk. CONCLUSION Frailty was associated with mortality, LOS, and hospital cost after adjusting for patient demographic, clinical, and hospital-related factors. Further research is needed to explore what pre-surgical measures can be assessed to mitigate in-hospital mortality and hospital cost in frail older patients hospitalized for hip fracture surgery.
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Affiliation(s)
- M J Kwak
- University of Texas Health Science Center at Houston, Houston, TX, USA
| | - B D Digbeu
- University of Texas Health Science Center at Houston, Houston, TX, USA
| | - J des Bordes
- Department of Family and Community Medicine, The University of Texas McGovern Medical School, 6431 Fannin St, Suite JJL 324, Houston, TX, 77030, USA
| | - N Rianon
- University of Texas Health Science Center at Houston, Houston, TX, USA.
- Department of Family and Community Medicine, The University of Texas McGovern Medical School, 6431 Fannin St, Suite JJL 324, Houston, TX, 77030, USA.
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Yarboro LT. The Role of Sutureless Aortic Valves in the Treatment of Severe Aortic Stenosis. JACC. ASIA 2021; 1:330-331. [PMID: 36341206 PMCID: PMC9627919 DOI: 10.1016/j.jacasi.2021.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Leora T. Yarboro
- Address for correspondence: Dr Leora T. Yarboro, Department of Surgery, University of Virginia, P.O. Box 800679, Charlottesville, Virginia 22908-0679, USA.
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