scholarly journals Molecular Mechanisms of AKI in the Elderly: From Animal Models to Therapeutic Intervention

2020 ◽  
Vol 9 (8) ◽  
pp. 2574 ◽  
Author(s):  
Barbara Infante ◽  
Rossana Franzin ◽  
Desirèe Madio ◽  
Martina Calvaruso ◽  
Annamaria Maiorano ◽  
...  
Keyword(s):  
Elderly Patients ◽  
Molecular Mechanisms ◽  
Kidney Injury ◽  
Length Of Hospital Stay ◽  
The Elderly ◽  
Renal Perfusion ◽  
Emergency Setting ◽  
Medical Interventions ◽  
Prevention And Treatment ◽  
Short And Long Term

Acute kidney injury (AKI), a critical syndrome characterized by a sudden reduction of renal function, is a common disorder among elderly patients particularly in Intensive Care Unit (ICU). AKI is closely associated with both short- and long-term mortality and length of hospital stay and is considered a predictor of chronic kidney disease (CKD). Specific hemodynamic, metabolic, and molecular changes lead to increased susceptibility to injury in the aged kidney; therefore, certain causes of AKI such as the prerenal reduction in renal perfusion or vascular obstructive conditions are more common in the elderly; moreover, AKI is often multifactorial and iatrogenic. Older patients present several comorbidities (diabetes, hypertension, heart failure) and are exposed to multiple medical interventions such as the use of nephrotoxic contrasts media and medications, which can also trigger AKI. Considering the emerging relevance of this condition, prevention and treatment of AKI in the elderly should be crucial in the internist and emergency setting. This review article summarizes the incidence, the risk factors, the pathophysiology, the molecular mechanisms and the strategies of prevention and treatment of AKI in elderly patients.

ACUTE KIDNEY INJURY IN ELDERLY PATIENTS

2019 ◽  
Vol 72 (8) ◽  
pp. 1466-1472
Author(s):  
Grażyna Kobus ◽  
Jolanta Małyszko ◽  
Hanna Bachórzewska-Gajewska
Keyword(s):  
Acute Kidney Injury ◽  
Renal Failure ◽  
Acute Renal Failure ◽  
Elderly Patients ◽  
Older Patients ◽  
Age Groups ◽  
Kidney Injury ◽  
The Elderly ◽  
Younger Patients ◽  
Common Cause

Introduction: In the elderly, impairment of kidney function occurs. Renal diseases overlap with anatomic and functional changes related to age-related involutionary processes. Mortality among patients with acute renal injury is approximately 50%, despite advances in treatment and diagnosis of AKI. The aim: To assess the incidence of acute kidney injury in elderly patients and to analyze the causes of acute renal failure depending on age. Materials and methods: A retrospective analysis included medical documentation of patients hospitalized in the Nephrology Clinic during the 6-month period. During this period 452 patients were hospitalized in the clinic. A group of 77 patients with acute renal failure as a reason for hospitalization was included in the study. Results: The prerenal form was the most common cause of AKI in both age groups. In both age groups, the most common cause was dehydration; in the group of patients up to 65 years of age, dehydration was 29.17%; in the group of people over 65 years - 43.39%. Renal replacement therapy in patients with AKI was used in 14.29% of patients. In the group of patients up to 65 years of age hemodialysis was 16.67% and above 65 years of age. -13.21% of patients. The average creatinine level in the group of younger patients at admission was 5.16 ± 3.71 mg / dl, in the group of older patients 3.14 ± 1.63 mg / dl. The size of glomerular filtration GFR in the group of younger patients at admission was 21.14 ± 19.54 ml / min, in the group of older patients 23.34 ± 13.33 ml / min. Conclusions: The main cause of acute kidney injury regardless of the age group was dehydration. Due to the high percentage of AKI in the elderly, this group requires more preventive action, not only in the hospital but also at home.

Acute kidney injury in the elderly patients of Thai-surgical intensive care units (Thai-SICU) study

2017 ◽  
Vol 30 (2) ◽  
pp. 131
Author(s):  
Konlawij Trongtrakul ◽  
Sujaree Poopipatpab ◽  
Ploynapas Limphunudom ◽  
Chawika Pisitsak ◽  
Kaweesak chittawatanarat ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Intensive Care ◽  
Elderly Patients ◽  
Intensive Care Units ◽  
Kidney Injury ◽  
The Elderly ◽  
Surgical Intensive Care

Radical Cystectomy in Elderly Patients

1993 ◽  
Vol 60 (1) ◽  
pp. 19-22
Author(s):  
P. Bassi ◽  
M. Gholam Alipour ◽  
G.L. Drago Ferrante ◽  
N. Piazza ◽  
N. Panza ◽  
...  
Keyword(s):  
Elderly Patients ◽  
Radical Cystectomy ◽  
Urinary Diversion ◽  
Length Of Hospital Stay ◽  
Wound Dehiscence ◽  
The Elderly ◽  
Elderly Group ◽  
Medical Complications ◽  
Control Group ◽  
Pelvic Hematoma

Radical cystectomy is the most common treatment for deeply invasive bladder cancer; due to reported operative risks, concerns have been expressed regarding the suitability of this operation in elderly patients. We reviewed the morbility and mortality rates in 50 patients aged 70 years and over (elderly group), undergoing radical cystectomy and urinary diversion, to verify if this procedure could be considered as initial treatment in older-age patients. The findings were compared with those observed in 50 patients aged 40 to 69 years (control group). In the elderly group there was no operative mortality; however 2 patients (4%) died post-operatively due to pulmonary embolism and multi-organ-failure syndrome respectively. Four patients (8%) were re-operated due to intestinal obstruction (2 pts), pelvic hematoma (1 pt) and wound dehiscence (1 pt). Wound separation was the more frequent complication (15%); 6% of patients experienced extended intestinal atonia. The length of hospital stay was 17.1 days. In the control group, surgical complications were comparable to those observed in the elderly group: furthermore medical complications were more frequent. In conclusion, these data suggest that radical cystectomy and urinary diversion can be safely performed in the elderly. Radical surgery is an effective treatment modality for elderly individuals who are in reasonably good general health. A higher incidence of medical complications must be expected in elderly patients.

104 Comorbidity Does Not Predict Outcomes After Burn Injury in the Elderly

2020 ◽  
Vol 41 (Supplement_1) ◽  
pp. S68-S68
Author(s):  
Isabel Bernal ◽  
Rosemary Paine ◽  
Damien W Carter ◽  
Carolyne Falank
Keyword(s):  
Elderly Patients ◽  
Wound Infection ◽  
Burn Injury ◽  
Pearson Correlation ◽  
Graft Loss ◽  
Kidney Injury ◽  
The Elderly ◽  
Burn Patients ◽  
Discharge Disposition ◽  
Burn Care

Abstract Introduction As the population ages; burn centers, especially those with a large rural catchment, will be expected to care for older adults with complex medical co-morbidities. Recent work has shown that %TBSA at which 50% of patients would be expected to die (LD50) for elderly patients is up to 20% lower than non-elderly patients. However, the factors contributing to mortality are unclear. We undertook this study to characterize our experience with elderly burn patients in our rural state and to understand how mortality is affected by comorbid disease. Methods We performed a retrospective review of all burn patients ≥50 years old admitted to our burn center over a 5 year period between January 2014 and December 2018. We collected demographic and injury data including %TBSA, mechanism, inhalation injury status, discharge disposition, length of stay as well as complications including pneumonia, kidney injury, wound infection and graft loss. We calculated the modified Baux score, Charlson Comorbidity Index (CCI) and overall mortality for each patient. The %TBSA and CCI were correlated with complications and mortality using the Pearson correlation coefficient analysis. Results There were 243 patients (35%) who met inclusion criteria out of total of 688 burn admissions during that period. The median age was 60 years (mean 62.2, range: 50–95) and 72.4% were male. The median TBSA was 4% (mean: 8.2%, range: 0.5% - 55%). We found weak correlations between CCI and both pneumonia (R=0.177, p=0.005) and mortality (R=0.1297, p=0.0434). There was also a weak correlation between %TBSA and pneumonia (R=0.3302, p < 0.001), kidney injury (R=0.205, p=0.001), wound infection (R=0.1295, p=0.045) and graft loss (R=0.2616, p< 0.001). Interestingly, in the subgroup with > 15% TBSA burns (n=35), there was no significant correlation with increased complications. For the entire cohort, the predicted mortality based on the mean modified Baux score was 16%. The actual observed mortality was 4.1%. Conclusions Our findings suggest that, in our center, CCI is not predictive of burn related complications or mortality and %TBSA is not predictive of complications or death. The observed to expected mortality ratio was remarkably low. Applicability of Research to Practice As we treat older burn patients, it is important to identify the individual patient factors and hospital specific burn care factors that may improve outcomes in the elderly population.

Acute kidney injury in the elderly

2018 ◽  
Author(s):  
Dinna N. Cruz ◽  
Anna Clementi ◽  
Mitchell H. Rosner
Keyword(s):  
Elderly Patient ◽  
Acute Kidney Injury ◽  
Urinary Tract Obstruction ◽  
Kidney Injury ◽  
The Elderly ◽  
Careful Analysis ◽  
Volume Depletion ◽  
Age Related ◽  
Short And Long Term ◽  
Aggressive Care

Acute kidney injury (AKI) is largely a disease of the elderly patient. As described in this chapter, age-related changes in the kidney as well as the accumulated co-morbid conditions and polypharmacy associated with ageing greatly increase the susceptibility to the development of AKI. The aetiologies of AKI in the elderly patient represent the same spectrum of prerenal, intrarenal, and postrenal causes as in other age categories. However, elderly patients tend to have a higher relative risk for developing AKI due to volume depletion and urinary tract obstruction. Diagnosis of AKI can be confounded by the use of serum creatinine which has limitations in the diagnosis of AKI.Poorer short- and long-term outcomes may influence decision-making on the provision of aggressive care such as offering renal replacement therapy. These complex decisions require a careful analysis of potential outcomes as well as coordinated discussions with family members to ensure that the most thoughtful and rational treatments are offered.

scholarly journals Cisplatin-induced renal toxicity in elderly people

2020 ◽  
Vol 12 ◽  
pp. 175883592092343 ◽  
Author(s):  
ZhiYu Duan ◽  
GuangYan Cai ◽  
JiJun Li ◽  
XiangMei Chen
Keyword(s):  
Elderly Patients ◽  
Elderly People ◽  
Renal Toxicity ◽  
Enzyme Inhibitor ◽  
Interstitial Fibrosis ◽  
Angiotensin Receptor Blockers ◽  
Young Patients ◽  
Kidney Injury ◽  
The Elderly ◽  
Tubular Atrophy

Despite available prevention and treatment measures, such as hydration, diuresis, magnesium supplementation, and amifostine, renal toxicity is still one of the major dose-limiting side effects of cisplatin. The aim of this review is to discuss the issue of cisplatin-induced nephrotoxicity in the elderly. Compared with young patients, the incidences of cisplatin-induced nephrotoxicity and acute kidney injury (AKI) in elderly patients are significantly increased, and survival time may be decreased. Following cisplatin treatment of elderly patients, tubulointerstitial injuries will be significantly aggravated based on their original age, both for acute injuries due to cell necrosis and exfoliation and chronic injuries due to interstitial fibrosis, tubular atrophy, and dilatation. The high incidence of cisplatin-induced nephrotoxicity in elderly patients may be associated with renal hypoperfusion; increased comorbidities, such as chronic kidney disease (CKD), cardiovascular disease, and diabetes mellitus; increased use of combined drugs [especially non-steroidal anti-inflammatory drugs, angiotensin-converting enzyme inhibitor and angiotensin receptor blockers (ACEI/ARB), and antibiotics]; decreased clearance of cisplatin; and high plasma ultrafilterable cisplatin. Considering hemodynamic stability and water balance, short duration and low volume hydration may be more suitable for treating elderly people. With the increasing popularity of low-dose daily/weekly regimens, we do not recommend routine diuretic treatment for elderly patients. We recommend using a less nephrotoxic platinum if large doses of cisplatin (100mg/m2) are needed.

The Short- and Long-Term Outcomes of Pancreatic Resection for Pancreatic Adenocarcinoma in Patients Older Than 75 Years

2016 ◽  
Vol 101 (11-12) ◽  
pp. 554-561
Author(s):  
Toru Aoyama ◽  
Masaaki Murakawa ◽  
Yosuke Atsumi ◽  
Keisuke Kazama ◽  
Manabu Shiozawa ◽  
...  
Keyword(s):  
Elderly Patients ◽  
Pancreatic Adenocarcinoma ◽  
Pancreatic Resection ◽  
The Elderly ◽  
Surgical Mortality ◽  
Long Term Outcomes ◽  
Group A ◽  
Short And Long Term ◽  
Group B

The short- and long-term outcomes of pancreatic resection for pancreatic adenocarcinoma have not been fully evaluated in elderly patients. This retrospective study selected patients who underwent curative surgery for pancreatic cancer at our institution. Patients were categorized into 2 groups: nonelderly patients (age < 75 years; group A) and elderly patients (age ≥ 75 years; group B). The surgical morbidity, surgical mortality, overall survival (OS), and recurrence-free survival (RFS) rates in the 2 groups were compared. A total of 221 patients were evaluated in the study. The overall complication rates were 44.8% in group A and 52.6% in group B. Surgical mortality was observed in 2 patients due to an abdominal abscess and cardiovascular disease in group A (1.1%) and in 1 patient due to postoperative bleeding in group B (2.6%). There were no significant differences (P = 0.379 and P = 0.456, respectively). Furthermore, the 5-year OS and RFS rates were similar between the elderly patients and nonelderly patients (18.55 versus 20.2%, P = 0.946 and 13.1% versus 16.0%, P = 0.829, respectively). The short-term outcomes and long-term survival after pancreatic resection for pancreatic adenocarcinoma were almost equal in the elderly and the nonelderly patients in this study. Therefore, it is unnecessary to avoid pancreatic resection for pancreatic adenocarcinoma in elderly patients simply because of their age.

Safety and feasibility of minimally invasive esophagectomy for elderly esophageal cancer patients

2020 ◽  
Author(s):  
Y Sugita ◽  
T Nakamura ◽  
R Sawada ◽  
G Takiguchi ◽  
N Urakawa ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Elderly Patients ◽  
Minimally Invasive Esophagectomy ◽  
The Elderly ◽  
Elderly Group ◽  
Hospital Death ◽  
Cancer Specific Survival ◽  
Invasive Esophagectomy ◽  
Short And Long Term

Summary The number of elderly patients with esophageal cancer has increased in recent years. The use of thoracoscopic esophagectomy has also increased, and its minimal invasiveness is believed to contribute to postoperative outcomes. However, the short- and long-term outcomes in elderly patients remain unclear. This study aimed to elucidate the safety and feasibility of minimally invasive esophagectomy in elderly patients. This retrospective study included 207 patients who underwent radical thoracoscopic esophagectomy for thoracic esophageal squamous cell carcinoma at Kobe University Hospital between 2005 and 2014. Patients were divided into non-elderly (<75 years) and elderly (≥75 years) groups. A propensity score matching analysis was performed for sex and clinical T and N stage, with a total of 29 matched pairs. General preoperative data, surgical procedures, intraoperative data, postoperative complications, in-hospital death, cancer-specific survival, and overall survival were compared between groups. The elderly group was characterized by lower preoperative serum albumin levels and higher American Society of Anesthesiologists grade. Intraoperative data and postoperative complications did not differ between the groups. The in-hospital death rate was 4% in the elderly group, which did not significantly differ from the non-elderly group. Cancer-specific survival was similar between the two groups. Although overall survival tended to be poor in the elderly group, it was not significantly worse than that of the non-elderly group. In conclusion, the short- and long-term outcomes of minimally invasive esophagectomy in elderly versus non-elderly patients were acceptable. Minimally invasive esophagectomy is a safe and feasible modality for elderly patients with appropriate indications.

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