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Yonai Y, Ben Natan M, Steinfeld Y, Berkovich Y. Combined Effect of Seasonality and Hyponatremia on the Occurrence of Hip Fractures Among Older Adults. Indian J Orthop 2022; 56:856-861. [PMID: 35547345 PMCID: PMC9043052 DOI: 10.1007/s43465-021-00557-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/24/2021] [Indexed: 02/06/2023]
Abstract
Background It is unclear whether climate may play a role in the association between hyponatremia on admission and increased mortality risk among hip fracture patients following a hip fracture repair surgery. We aimed (1) to explore if there is any combined effect of seasonality and hyponatremia on the occurrence of hip fractures among older adults and (2) to explore the effect of hyponatremia on admission on mortality rate at latest follow-up among hip fracture patients following a hip fracture repair surgery in the context of the subtropical climate of Israel. Methods We conducted a retrospective cohort study of older patients who underwent a surgery for hip fracture repair in a major 495-bed hospital located in northern-central Israel in 2017-2020. Patients were divided into two groups: hyponatremic (n = 107) and normonatremic (n = 757) patients. Characteristics of the two groups were compared, as well as their survival probability. Results Hyponatremic patients were most frequently hospitalized during winter season. Such seasonal variation was observed only among hyponatremic patients. Moreover, patients who were hospitalized during winter season were more likely to be hyponatremic on admission. Hyponatremia on admission was found as a significant independent predictor of mortality rate at latest follow-up (adjusted hazard ratio = 0.377 [0.26-0.52]), when compared to normonatremia. Conclusion There is a combined effect of seasonality and hyponatremia on the occurrence of hip fractures among older adults, with hyponatremic patients being at a higher risk of sustaining a hip fracture during winter season than during other seasons. In addition, the association between hyponatremia on admission and mortality rate at latest follow-up among hip fracture patients has been confirmed.
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Affiliation(s)
- Yaniv Yonai
- grid.414084.d0000 0004 0470 6828The Orthopedics B Department, Hillel Yaffe Medical Center, Hadera, Israel
| | - Merav Ben Natan
- grid.414084.d0000 0004 0470 6828Pat Matthews Academic School of Nursing, Hillel Yaffe Medical Center, P.O.B. 169, 38100 Hadera, Israel
| | - Yaniv Steinfeld
- grid.414084.d0000 0004 0470 6828The Orthopedics B Department, Hillel Yaffe Medical Center, Hadera, Israel
| | - Yaron Berkovich
- grid.414084.d0000 0004 0470 6828The Orthopedics B Department, Hillel Yaffe Medical Center, Hadera, Israel ,grid.6451.60000000121102151The Technion, Haifa, Israel
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Wang H, Ou Y, Fan T, Zhao J, Kang M, Dong R, Qu Y. Development and Internal Validation of a Nomogram to Predict Mortality During the ICU Stay of Thoracic Fracture Patients Without Neurological Compromise: An Analysis of the MIMIC-III Clinical Database. Front Public Health 2022; 9:818439. [PMID: 35004604 PMCID: PMC8727460 DOI: 10.3389/fpubh.2021.818439] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 12/03/2021] [Indexed: 11/13/2022] Open
Abstract
Background: This study aimed to develop and validate a nomogram for predicting mortality in patients with thoracic fractures without neurological compromise and hospitalized in the intensive care unit. Methods: A total of 298 patients from the Medical Information Mart for Intensive Care III (MIMIC-III) database were included in the study, and 35 clinical indicators were collected within 24 h of patient admission. Risk factors were identified using the least absolute shrinkage and selection operator (LASSO) regression. A multivariate logistic regression model was established, and a nomogram was constructed. Internal validation was performed by the 1,000 bootstrap samples; a receiver operating curve (ROC) was plotted, and the area under the curve (AUC), sensitivity, and specificity were calculated. In addition, the calibration of our model was evaluated by the calibration curve and Hosmer-Lemeshow goodness-of-fit test (HL test). A decision curve analysis (DCA) was performed, and the nomogram was compared with scoring systems commonly used during clinical practice to assess the net clinical benefit. Results: Indicators included in the nomogram were age, OASIS score, SAPS II score, respiratory rate, partial thromboplastin time (PTT), cardiac arrhythmias, and fluid-electrolyte disorders. The results showed that our model yielded satisfied diagnostic performance with an AUC value of 0.902 and 0.883 using the training set and on internal validation. The calibration curve and the Hosmer-Lemeshow goodness-of-fit (HL). The HL tests exhibited satisfactory concordance between predicted and actual outcomes (P = 0.648). The DCA showed a superior net clinical benefit of our model over previously reported scoring systems. Conclusion: In summary, we explored the incidence of mortality during the ICU stay of thoracic fracture patients without neurological compromise and developed a prediction model that facilitates clinical decision making. However, external validation will be needed in the future.
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Affiliation(s)
- Haosheng Wang
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, China
| | - Yangyang Ou
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, China
| | - Tingting Fan
- Department of Endocrinology, Baoji City Hospital of Traditional Chinese Medicine, Baoji, China
| | - Jianwu Zhao
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, China
| | - Mingyang Kang
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, China
| | - Rongpeng Dong
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, China
| | - Yang Qu
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, China
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Abstract
As the lifespan increases, special attention has been given to the supportive care needs of the elderly. Frailty is an important issue in third age, since it is related to poor quality of life and mortality. The prevalence of pathological conditions related to sodium levels, specifically hyponatremia, is also present in the elderly. Yet, it is unclear, if hyponatremia and frailty are related to each other. This review summarizes the current state of knowledge regarding hyponatremia and frailty and analyzes five independent studies which searched for an association between those two parameters. As indicated by this study results, hyponatremia consists a risk factor for frailty. This could be explained by an effect of hyponatremia on sarcopenia and on cognitive function, which consist components of frailty. Thus, it is essential to monitor sodium levels in the elderly and to develop related interventions (e.g. using arginine vasopressin antagonists) in order to prevent frailty.
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Affiliation(s)
- Nikolaos D Karakousis
- Department of Gastroenterology, Medical School of National and Kapodistrian University of Athens, General Hospital of Athens "Laiko", Greece.,Department of Physiology, Medical School of National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos A Kostakopoulos
- Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, UK.,Metropolitan General Hospital, 1 Department of Urology, Athens, Greece
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Pisa F, Reinold J, Lavikainen P, Koponen M, Taipale H, Tanskanen A, Tiihonen J, Hartikainen S, Tolppanen AM. Hip Fracture Risk in Antiepileptic Drug Initiators and Non-Initiators with Alzheimer's Disease. Clin Epidemiol 2021; 13:295-307. [PMID: 33911901 PMCID: PMC8075175 DOI: 10.2147/clep.s278306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 03/29/2021] [Indexed: 11/23/2022] Open
Abstract
Objective To determine the risk of hip fracture in persons with Alzheimer´s disease (AD) who initiated antiepileptic drugs (AEDs). Methods In the Medication use and AD (MEDALZ) cohort of 70,719 Finnish community dwellers with clinically verified incident AD diagnosis in 2005-2011, we identified all incident users of AEDs using national Prescription register. AEDs were classified as older (valproate, carbamazepine, clonazepam, phenytoin, levetiracetam, primidone) or newer (pregabalin, gabapentin, oxcarbazepine, lamotrigine, topiramate). We matched each user to 2 non-users. Incident hip fractures until 2015 were identified from the Care register for health care. We calculated inverse probability of treatment weighted hazard ratios (HR), with 95% confidence intervals, using Cox regression. Results Altogether 5522 incident users were identified and matched to 11,044 non-users (in both groups, women: 65%; median age: 81 years). Altogether 53.3% of users initiated with newer AEDs (pregabalin 79.8%, gabapentin 10.2%) while 46.7% initiated with older AEDs (valproate 67.6%, carbamazepine 13.0%). Age- and sex-adjusted IR of hip fracture per 100 person-years was 1.8 (95% CI 1.6-1.9) in non-users and 2.0 (95% CI 1.8-2.2) in users. Increased risk of hip fracture was observed in users (HR 1.17, 95% CI 1.05-1.30) compared with non-users. The risk was higher for short duration of use (<14 weeks, HR 3.64, 95% CI 2.90-4.58) than for medium duration (14 to <64 weeks, HR 1.74, 95% CI 1.48-2.05) or ≥64 weeks' use (HR 1.23, 95% CI 1.08-1.40), compared to non-users with same follow-up time. Older AEDs had HR of 1.46 (1.03-2.08) compared with newer AEDs. Conclusion Our results imply that AED use is associated with an increased risk of hip fracture in people with AD. These findings prompt careful consideration before prescribing AEDs to persons with AD. Persons with AD treated with antiepileptics should be carefully monitored due to their increased risk of falling and fractures.
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Affiliation(s)
- Federica Pisa
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.,Kuopio Research Centre of Geriatric Care, University of Eastern Finland, Kuopio, Finland.,Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany
| | - Jonas Reinold
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.,Kuopio Research Centre of Geriatric Care, University of Eastern Finland, Kuopio, Finland.,Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany
| | - Piia Lavikainen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.,Kuopio Research Centre of Geriatric Care, University of Eastern Finland, Kuopio, Finland
| | - Marjaana Koponen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.,Kuopio Research Centre of Geriatric Care, University of Eastern Finland, Kuopio, Finland.,Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Melbourne, Victoria, Australia
| | - Heidi Taipale
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.,Kuopio Research Centre of Geriatric Care, University of Eastern Finland, Kuopio, Finland.,Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Forensic Psychiatry, Niuvanniemi Hospital, University of Eastern Finland, Kuopio, Finland
| | - Antti Tanskanen
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Forensic Psychiatry, Niuvanniemi Hospital, University of Eastern Finland, Kuopio, Finland.,Impact Assessment Unit, National Institute for Health and Welfare, Helsinki, Finland
| | - Jari Tiihonen
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Forensic Psychiatry, Niuvanniemi Hospital, University of Eastern Finland, Kuopio, Finland
| | - Sirpa Hartikainen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.,Kuopio Research Centre of Geriatric Care, University of Eastern Finland, Kuopio, Finland
| | - Anna-Maija Tolppanen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland.,Kuopio Research Centre of Geriatric Care, University of Eastern Finland, Kuopio, Finland
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