The Benefit of Revascularization in Nonagenarians with Lower Limb Ischemia is Limited by High Mortality

Arterial Leg Ulcers in the Octogenarian

Arterial leg ulcers are a debilitating sequela of chronic ischemia, and their management, particularly in the octogenarian, is an immense challenge. ALUs are frequently a manifestation of end-stage peripheral arterial disease, and their presence portends a high morbidity and mortality. Management primarily relies on restoration of flow, but in the geriatric population, interventions may carry undue risk and pathologies may not be amenable. Adjunctive therapies that improve quality of life and decrease morbidity and mortality are therefore essential, and understanding their benefits and limitations is crucial in developing a multimodal treatment algorithm of care for the uniquely challenging octogenarian population.

2024 ACC/AHA/AACVPR/APMA/ABC/SCAI/SVM/SVN/SVS/SIR/VESS Guideline for the Management of Lower Extremity Peripheral Artery Disease: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines

AIM

The "2024 ACC/AHA/AACVPR/APMA/ABC/SCAI/SVM/SVN/SVS/SIR/VESS Guideline for the Management of Lower Extremity Peripheral Artery Disease" provides recommendations to guide clinicians in the treatment of patients with lower extremity peripheral artery disease across its multiple clinical presentation subsets (ie, asymptomatic, chronic symptomatic, chronic limb-threatening ischemia, and acute limb ischemia).

METHODS

A comprehensive literature search was conducted from October 2020 to June 2022, encompassing studies, reviews, and other evidence conducted on human subjects that was published in English from PubMed, EMBASE, the Cochrane Library, CINHL Complete, and other selected databases relevant to this guideline. Additional relevant studies, published through May 2023 during the peer review process, were also considered by the writing committee and added to the evidence tables where appropriate.

STRUCTURE

Recommendations from the "2016 AHA/ACC Guideline on the Management of Patients With Lower Extremity Peripheral Artery Disease" have been updated with new evidence to guide clinicians. In addition, new recommendations addressing comprehensive care for patients with peripheral artery disease have been developed.

2024 ACC/AHA/AACVPR/APMA/ABC/SCAI/SVM/SVN/SVS/SIR/VESS Guideline for the Management of Lower Extremity Peripheral Artery Disease: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines

AIM

The "2024 ACC/AHA/AACVPR/APMA/ABC/SCAI/SVM/SVN/SVS/SIR/VESS Guideline for the Management of Lower Extremity Peripheral Artery Disease" provides recommendations to guide clinicians in the treatment of patients with lower extremity peripheral artery disease across its multiple clinical presentation subsets (ie, asymptomatic, chronic symptomatic, chronic limb-threatening ischemia, and acute limb ischemia).

METHODS

A comprehensive literature search was conducted from October 2020 to June 2022, encompassing studies, reviews, and other evidence conducted on human subjects that was published in English from PubMed, EMBASE, the Cochrane Library, CINHL Complete, and other selected databases relevant to this guideline. Additional relevant studies, published through May 2023 during the peer review process, were also considered by the writing committee and added to the evidence tables where appropriate.

STRUCTURE

Recommendations from the "2016 AHA/ACC Guideline on the Management of Patients With Lower Extremity Peripheral Artery Disease" have been updated with new evidence to guide clinicians. In addition, new recommendations addressing comprehensive care for patients with peripheral artery disease have been developed.

Role of Anticoagulation in Nonagenarian Patients with Acute Limb Ischemia

BACKGROUND

Preoperative anticoagulant therapy is known to have a positive impact on the prognosis of patients with acute limb ischemia (ALI). However, little is known about its efficacy in elderly patients. We aimed to investigate the potential effect of anticoagulation in nonagenarian patients managed for ALI.

METHODS

Between January 2015 and December 2021, we identified all nonagenarian patients managed for ALI at a single center. Long-term anticoagulation and hemostasis parameters (prothrombin rate, activated partial thromboplastin time [APTT], platelet count) measured on admission were reviewed. The primary end point was mortality at 30-day mortality (D30) in patients with or without long-term anticoagulation therapy. We also studied the effect of these factors on the occurrence of revascularization failure in operated patients (initial failure, ischemic recurrence during hospitalization, necrosis requiring major amputation).

RESULTS

A total of 68 nonagenarian patients were managed for ALI, with a mean age of 93.8 years (from 90-107 years), 76.5% of whom were women. Of these patients, 47 (69%) were managed surgically. Long-term anticoagulation therapy was associated with better survival at D30, both in nonoperated (P < 0.01) and operated (P < 0.05) patients. In operated patients, the absence of long-term anticoagulation therapy was associated with the occurrence of revascularization failure (P < 0.05). In operated patients, survival to D30 and successful revascularization were associated with a longer APTT (P < 0,05). We were able to observe the survival of 4 patients contraindicated for surgery and treated with a single medical therapy (intravenous unfractionated heparin).

CONCLUSIONS

Anticoagulation appears to have an impact on the survival and postoperative prognosis of nonagenarian patients with ALI. In addition, curative anticoagulation therapy may be an alternative treatment when surgery is contraindicated in this frail population.

Acute limb ischemia in nonagenarians: Characteristics and factors related to outcomes in a single-center consecutive series

BACKGROUND

The increasing aging and frailty of the population make the management of acute limb ischemia (ALI) more difficult, with decision-making far from being guided by evidence. The aim of the study was to evaluate the characteristics and results of ALI treatment in nonagenarians.

MATERIALS AND METHODS

Retrospective analysis of a consecutive series of nonagenarian patients with ALI attended at our institution between 2008 and 2021. The primary outcomes of the study were 1-year limb salvage and survival rates.

RESULTS

A total of 102 patients were included (mean age 92.38, 78.4% women). In 83 cases (81.4%) ALI was attributed to embolism, and 19 (18.6%) to acute arterial thrombosis. One-month overall survival was 70.6%. Fifteen patients (14.7%) were treated palliatively, including 8 (53.3%) irreversible ALI with associated malignancy/advanced dementia, 5 (33.3%) with associated cerebral/intestinal ischemia and 2 (13.3%) with aortic occlusion and poor medical condition. None of these patients survived after 10 days. The remaining 87 patients (85.3%) were treated with isolated anticoagulation (n = 8, 9.1%), primary major amputation (n = 1, 1.1%) or revascularization (n = 78, 89.6%), including 69 (67.6%) embolectomies, 6 (5.9%) bypass and 3 (2.9%) endovascular techniques. One-year limb salvage and survival rates were 96% and 48%, respectively. Predictive factors of lower survival included anemia (HR = 1.81, p = 0.014) and ALI severity (HR = 1.73, p = 0.032), but not cognitive or functional status. Patients surviving the ALI episode had a 1-year survival rate significantly below that of a similar matched population.

CONCLUSION

Although nonagenarians with an ALI are often functionally and cognitively impaired and have a limited life expectancy, most patients need revascularization for limb salvage and this can be done successfully with a low invasive surgery.

Frailty is Not Associated with Worse Outcomes following Lower Extremity Angiograms for Limb Ischemia in Nonagenarians

BACKGROUND

Endovascular interventions are performed routinely with minimal risk in younger populations. The safety and efficacy of endovascular interventions in nonagenarians is under examined. We sought to examine the following (1) mortality and limb salvage rates in the nonagenarian population and (2) whether frailty was associated with outcomes following lower extremity (LE) interventions for both acute limb ischemia (ALI) and chronic limb threatening ischemia (CLTI).

METHODS

A retrospective review of patients ≥90 years who underwent a LE angiogram for ALI or CLTI over a 12-year period at a single institution was performed. Primary outcomes were 30-day and 12-month limb salvage and mortality rates. Patient demographics, 30-day complications, and 12-month target vessel reintervention (TVR) were reviewed. Frailty scores were calculated using the 11-factor modified frailty index (MFI-11).

RESULTS

From 2009 to 2021, 76 patients (36% male) with a mean age of 93 (range: 90-102) underwent endovascular procedures for ALI (n = 13) and CLTI (n = 63). 30-day amputation and mortality rates were 6% and 8%, respectively. Patient demographics, preoperative functional status, and TVR rates were not different between patients who had early amputation (≤30 days) and those who achieved limb salvage. Seventy-two patients (94%) had follow-up data at 30 days. There was an 8% mortality rate at 30 days. Of those alive at 30 days, 94% of patients had successful limb salvage. Fifty-eight patients had complete follow-up data at 12 months. Of the patients alive at 12-month follow-up (75%), the limb salvage rate was 98%. Patients with amputation at 30 days had a significantly higher mortality rate at 12 months compared to those who did not (83% vs. 19%; P < 0.01). Based on MFI-11 scoring, 35% of the population was considered frail (≥0.27). Frail patients did not have significantly different 30-day outcomes (limb salvage: 94% vs. 88%; mortality 8% vs. 9%, P = 0.41 and 0.94, respectively) or 12-month outcomes (limb salvage: 82% vs. 94%; mortality: 32% vs. 22%, P = 0.28 and 0.39, respectively).

CONCLUSIONS

Endovascular procedures can be done safely in nonagenarians with low mortality and amputation rates. Patients with early amputation are at significantly higher risk of death at 12 months. Frailty, as measured by a validated index, was not associated with early or late outcomes. When compared to immediate amputation, nonagenarian patients and their families should be counseled as to the benefit from a minimally invasive endovascular procedure.

Evaluating the Role of Major Lower Extremity Amputation in Nonagenarians

OBJECTIVE

Elderly patients with critical limb ischemia are an especially frail and vulnerable group of patients. There is little literature investigating outcomes and resource utilization in nonagenarians undergoing major lower extremity amputation (MLEA). This study aims to elucidate the outcomes of this unique set of patients for whom amputation may often be considered a "palliative" intervention.

METHODS

Analyzing over 16,000 records from the Vascular Quality Initiative (VQI) database, we collected demographic, operative, and postoperative data on all patients who underwent an MLEA. We performed univariate analysis comparing nonagenarians to younger patients examining both short-term and long-term outcomes. Multimodel inference was used to analyze the effect of age on clinically meaningful outcomes: mortality and long-term living disposition.

RESULTS

With 392 nonagenarians and 16,349 patients under the age of 90, we found nonagenarians were less comorbid and less likely to have a prior bypass or amputation. Despite experiencing lower rates of reoperation and individual postoperative complications, nonagenarians suffered higher long-term mortality (46% vs. 22%, P < 0.0005) and were more likely to be living in a facility at follow-up (34% vs. 15%, P < 0.0005). Incorporating important demographic and clinical factors, multimodel inference demonstrated that, the nonagenarian age group was a critical predictor of nonhome living status (Akaike Importance weight 0.99).

CONCLUSIONS

Although nonagenarians were less comorbid than their younger counterparts and suffered fewer perioperative complications, MLEA leads to a poorer outcome with significant mortality and a higher likelihood of residing in a facility at long-term follow-up. These findings underscore the importance of frank goals of care discussions in nonagenarians considering major amputation.

Critical Limb Ischemia in Nonagenarians: A Challenge of Our Times

BACKGROUND

As a result of the increasing life expectancy of the western population, the number of older patients with chronic limb-threatening ischemia (CLTI) seeking medical care is growing. Our objective was to describe the characteristics of a consecutive series of nonagenarian patients with CLTI and evaluate the outcomes of their management.

MATERIALS AND METHODS

Retrospective analysis of a consecutive series of nonagenarian patients with CLTI attended at our institution between 2005 and 2019. Primary endpoints were 1-year limb salvage and survival rates.

RESULTS

A total of 171 patients were included (mean age 92.7, 51.5% women), of which in 59 (34.5%) primary major amputation (n = 10) or palliative care (n = 49) was indicated at presentation because of severe dementia (n = 30, 50.8%), knee retraction (n = 17, 28.8%), terminal condition (n = 13, 22%) or a non-salvageable foot (n = 28, 47.4%). In the remaining 112 (65.5%), the need for a revascularization was further assessed finally performing A) conservative treatment/minor amputation (n = 57, 50.9%), B) revascularization (n = 50, 44.6%) or C) direct major amputation (n = 5, 4.4%), with 1-year limb salvage and survival rates of 93.1 and 57.4%, respectively. Predictive factors for lower survival included age >92 years (HR = 1,59, p = 0.041), hemoglobin <10.5 mg/dL (HR 2,34, p < 0.001), congestive heart failure (HR = 1.65, p = 0.036), non-severe dementia (HR 3,11, p < 0.001) and current mobility with wheelchair (HR 1,74, p = 0.014).

CONCLUSION

Nearly one-third of nonagenarian patients with CLTI have a direct indication for amputation or palliative care at presentation. In the remaining, a judicious approach with conservative treatment, minor amputation or revascularization procedures yields excellent limb salvage rates. Survival is, however, the cornerstone of these patients. It can be predicted with certain clinical factors which may help decision-making.

Reinterventions in Patients with Claudication and Chronic Limb Threatening Ischemia

BACKGROUND

Patients with peripheral artery disease (PAD) present with claudication or chronic limb threatening ischemia (CLTI). CLTI patients have a more advanced stage of atherosclerosis and increased comorbidities compared to claudicants, and are at an elevated risk of major amputation and mortality after lower extremity revascularization (LER). However, the frequency of reinterventions for claudication and CLTI have not been compared. Our hypothesis is that patients with CLTI undergo more frequent reinterventions to prevent major amputation.

METHODS

A single-center retrospective chart review of consecutive patients undergoing lower extremity revascularization (LER) for PAD in 2013-2015 was performed. Patients were stratified based on indication for revascularization into claudication or CLTI. Patient characteristics, outcomes, and reinterventions were compared between the 2 groups.

RESULTS

There were 826 patients undergoing LER and 44% (N = 361) had CLTI. Patients treated for CLTI were more likely to be smokers (P < 0.001), to have diabetes (P< 0.001), chronic renal insufficiency (P< 0.001), end stage renal disease (P< 0.001), and cardiac disease (P< 0.001). CLTI patients were less likely to be on optimal medical management as reflected by decreased rate of aspirin (P< 0.001), ADP receptor/P2Y12 inhibitors (P< 0.001), and statins (P< 0.001) compared to patients with claudication. Patients with CLTI had significantly higher major amputation (3.7% vs. 0.2%, P< 0.001) and mortality (1.4% vs. 0.2%, P = 0.092) at 30 days. At long-term follow up, patients with CLTI had higher rates of major amputation (15.5% vs. 1.3%, P < 0.001) and mortality (37.1% vs. 18.1%, P < 0.001) compared to patients with claudication. There was a significant difference in mean follow-up time between the 2 cohorts (claudication: 3.7 ± 1.5 years versus CLTI: 2.6 ± 1.8 years, P < 0.001). There was no significant difference in the ipsilateral reintervention rate between the 2 groups (claudication: 39.6% vs. CLTI: 42.7%, P = 0.37) or the mean number of ipsilateral reinterventions (claudication: 2.0 ± 1.6 vs. CLTI: 2.0 ± 1.7). However, after adjusting for follow-up time, the mean number of reinterventions per year was significantly higher for CLTI patients compared to patients with claudication (1.4 ± 2.2 vs. .6 ± 0.7 intervention per year, P < 0.001).

CONCLUSIONS

Patients undergoing LER for CLTI undergo more frequent reinterventions over time compared to patients treated for claudication. Research on reinterventions after LER should include reporting of the frequency of reintervention adjusted for the follow up period in addition to the reintervention rate defined as the percentage of patients undergoing reintervention.

Foot disease and physical function in older adults: A systematic review and meta-analysis

OBJECTIVES

To systematically assess the literature examining the association between foot disease (foot ulceration, infection, critical ischaemia and/or Charcot neuroarthropathy) and physical function in older adults.

METHODS

Literature search of MEDLINE, Embase and CINAHL was performed. Studies were included if foot disease and physical function were assessed in participants of mean or median age ≥ 65 years.

RESULTS

Of 2,574 abstracts screened, 19 studies (13 longitudinal, 6 cross-sectional) reporting on 5634 participants, 43% female, were included. Diabetes-related foot disease and critical ischaemia were most studied (n = 5017, 40% female). In 8 studies with control groups, foot disease was associated with poorer physical function. Meta-analysis of 5 studies (n = 1503, 45% female) found an association between foot disease and poorer physical function (SMD (95% CI): 1.00 (0.40, 1.62), P < 0.001).

CONCLUSION

Foot disease is associated with poorer physical function in older adults. Future research should include broader study populations and intervention strategies.

Lower Extremity Revascularization for Chronic Limb-Threatening Ischemia among Patients at the Extremes of Age

BACKGROUND

Patients with chronic limb-threatening ischemia (CLTI) at the extremes of age are thought to have distinct risk factor profiles and poor outcomes after lower extremity revascularization (LER). The aim of this study is to examine the relationships among age, risk factor profiles, and outcomes of LER in patients with CLTI in a large database focusing on the extreme age groups.

METHODS

Patients undergoing LER for CLTI in the Vascular Quality Initiative suprainguinal bypass, infrainguinal bypass, and peripheral vascular intervention files were reviewed through 2019. Patients were stratified into 3 groups: premature peripheral artery disease (PAD) (≤50 years old), 51-84 years old, and elderly (≥85 years old). Trends in major amputation and mortality by age group were analyzed.

RESULTS

There were 156,513 patients who underwent LER for CLTI. Of these, 9,063 (5.79%) patients had premature PAD, 131,694 (84.14%) patients were 51-84 years old, and 15,756 (10.07%) were elderly. Patients with premature PAD were more likely to have insulin-dependent diabetes, be dialysis-dependent, and be active smokers compared to patients 51-84 years old and the elderly. Elderly patients were more likely to undergo an endovascular procedure for tissue loss compared to younger groups. Perioperative and 1-year major amputation rates were highest among patients with premature PAD and decreased with increasing age (P < 0.001), while perioperative and 1-year mortality increased with age (P < 0.001). On multivariable analysis, premature PAD was associated with an increased risk of major amputation (odds ratio, OR = 1.41 [1.22-1.62]), while elderly age was associated with decreased odds of major amputation compared to patients 51-84 years old (OR = 0.61 [0.51-0.73]).

CONCLUSIONS

Patients at the extremes of age have significantly different outcomes after LER for CLTI. Although mortality increases with age, the risk of major amputation decreases. Patients with premature PAD constitute a group of patients with a high risk of perioperative and 1-year major amputation.

Asia-Pacific Consensus Statement on the Management of Peripheral Artery Disease: A Report from the Asian Pacific Society of Atherosclerosis and Vascular Disease Asia-Pacific Peripheral Artery Disease Consensus Statement Project Committee

BACKGROUND

Peripheral artery disease (PAD) is the most underdiagnosed, underestimated and undertreated of the atherosclerotic vascular diseases despite its poor prognosis. There may be racial or contextual differences in the Asia-Pacific region as to epidemiology, availability of diagnostic and therapeutic modalities, and even patient treatment response. The Asian Pacific Society of Atherosclerosis and Vascular Diseases (APSAVD) thus coordinated the development of an Asia-Pacific Consensus Statement (APCS) on the Management of PAD.

OBJECTIVES

The APSAVD aimed to accomplish the following: 1) determine the applicability of the 2016 AHA/ACC guidelines on the Management of Patients with Lower Extremity Peripheral Artery Disease to the Asia-Pacific region; 2) review Asia-Pacific literature; and 3) increase the awareness of PAD.

METHODOLOGY

A Steering Committee was organized to oversee development of the APCS, appoint a Technical Working Group (TWG) and Consensus Panel (CP). The TWG appraised the relevance of the 2016 AHA/ACC PAD Guideline and proposed recommendations which were reviewed by the CP using a modified Delphi technique.

RESULTS

A total of 91 recommendations were generated covering history and physical examination, diagnosis, and treatment of PAD-3 new recommendations, 31 adaptations and 57 adopted statements. This Asia-Pacific Consensus Statement on the Management of PAD constitutes the first for the Asia-Pacific Region. It is intended for use by health practitioners involved in preventing, diagnosing and treating patients with PAD and ultimately the patients and their families themselves.

Results of the Surgical Management of Acute Limb Ischemia in the Nonagenarians

BACKGROUND

The aging of the population leads us to treat older patients, in particular presenting with acute limb ischemia (ALI). However, there has been little evaluation of this pathology in the nonagenarians. The objectives of this work are thus to evaluate the 1-month and 1-year mortality of the nonagenarians treated for ALI, which made possible to determine the 1-year survival and to highlight the factors influencing the mortality.

METHODS

This is a monocentric retrospective study including all the patients aged 90 years old or more surgically treated for ALI between January 2012 and December 2016. In all the patients, we recorded the 1-month mortality and the 1-year survival and the demographic, clinical, and paraclinical data.

RESULTS

We operated 83 nonagenarians, with a majority of women (59, 71.1%), using general anesthesia in 20 patients (16.6%), including 10 cases of upper limb acute ischemia (12.0%). The overall mortality rate at 1 month was 22.9%, and the 1-year survival rate was 43.4%. Major amputation rate was 9.6% at 1 year. The survival of the patients operated for upper or lower limb ischemia was similar (P = 0.82). Univariate analysis showed that the 1-year survival was lower in patients having a history of cerebrovascular problems (P = 0.0003), heart failure (P = 0.0027), dementia (P = 0.0452), or in patients that were institutionalized (P = 0.0125), invalid (P = 0.0001), or presented with a complete acute ischemia (P = 0.0002). In multivariate analysis, 3 risk factors remained statistically significant: a previous history of cerebrovascular accident (hazard ratio [HR] = 3.05 [1.54-6.02]; P = 0.0014), cardiac failure (HR = 2.21 [1.23-3.97]; P = 0.0083), and complete ALI (HR = 3.07 [1.64-5.75]; P = 0.0005).

CONCLUSIONS

Our study showed that a history of cerebrovascular accident, cardiac failure, or complete ALI is a poor prognostic factor for the 1-year survival of nonagenarians dealt operated for ALI. These elements should be taken into account when deciding either to operate or not in this precise context.

Surgery for the Very Old: Are Nonagenarians Different?

Octogenarians and nonagenarians are considered the “very old” and are often viewed as one group. Americans are aging, with the proportion of the very old expected to increase from 1.9 per cent of the population to 4.3 per cent in 2050. This study aimed to underscore the differences in surgical trends, demographics, and outcomes between octogenarians and nonagenarians. The ACS-NSQIP database (2007–2012) was used to derive the type of surgeries, demographics, and outcomes of octogenarian and nonagenarians undergoing nonemergent vascular, orthopedic, and general surgery procedures. Between 2007 and 2012, nonagenarians accounted for an increasing percentage of surgeries (85 to 121 per 10,000 surgeries, relative risk = 1.42; 95% CI: 1.30–1.54) across surgical specialties, including vascular, general, and orthopedic surgery, whereas the percentage of octogenarians undergoing surgery remained unchanged. Nonagenarians had a higher 30-day perioperative mortality and a longer hospital stay than octogenarians after vascular, orthopedic, and general surgery procedures. Nonagenarians are a rapidly growing group of surgical patients with significantly higher perioperative mortality and longer postoperative hospital stay. The impact of surgery on the quality of life of nonagenarians needs to be studied to justify the increasing healthcare costs.

Invasive treatment in peripheral artery disease

Invasive treatment in peripheral artery disease (PAD) has evolved as a viable alternative to surgical treatment. However, beyond the common pathophysiological substrate, as far as treatment is concerned, each site of atherosclerotic disease (subclavian and vertebral arteries; carotid arteries; intracranial arterial tree; renal arteries; lower extremity arteries) features unique characteristics. Treatment options include medical treatment, endovascular management and/or surgery. Sound clinical evaluation is required as individual patient assessment often limits intervention options, while available data regarding benefits of invasive and surgical management are questioned by advances in medical treatment. In the present article, we aim to summarize existing evidence and guidance on the role of invasive procedures in PAD.

Early Thrombosuction and Tirofiban Use in Knee and Below-Knee Arterial Thrombosis

BACKGROUND Acute limb ischemia (ALI) is a clinical entity with a high rate of morbidity and mortality. Despite advances and variety of its management, there is still no criterion standard treatment. The goal of this study was to evaluate the effect of tirofiban use on the early and 6-month prognosis of patients with knee and below-knee arterial thrombosis who were treated with percutaneous thrombosuction (PT) within 24 h. MATERIAL AND METHODS Data of consecutive ALI patients who were diagnosed with popliteal and infra-popliteal arterial thrombosis and underwent PT procedure within 24 h between January 2010 and September 2015 were evaluated retrospectively. Patients were separated into 2 groups according to tirofiban usage. RESULTS A total of 105 patients (mean age 67±16; 53% men) were included in the study. Atrial fibrillation (n 64, 61%) and hypertension (n 60, 57%) were the most frequent comorbidities in patients with thromboembolic events. A significantly higher rate of distal embolization (6% vs. 16%; p=0.01) and slow-flow (17% vs. 30%; p<0.01) developed in patients who were not treated with tirofiban after the PT procedure. Although major and minor bleeding were more frequent in the tirofiban group, only the rate minor bleeding was statistically significant (29% vs. 9%, p=0.001). Reverse embolic event ratio was similar in both groups. Although there was a higher rate of amputation in patients not treated with tirofiban, the difference was not significant. CONCLUSIONS Adding tirofiban to PT reduces angiographic thromboembolic complications. Usage of tirofiban in patients prone to thromboembolic events may be useful for improving success of the PT procedure, with a reasonable bleeding ratio.

Pre-operative predictors of poor outcomes in patients undergoing surgical lower extremity revascularisation - Retrospective cohort study

BACKGROUND

Surgical lower extremity revascularisation (LER) can lead to poor outcomes that include delayed hospital discharge, in-hospital mortality, major amputations and readmissions. The aim of this study was to identify pre-operative predictors associated with these poor clinical outcomes.

MATERIALS AND METHODS

All patients (n = 635; mean age 69; male 67.4%) who underwent surgical LER over a 5 year period in a single tertiary vascular institution were identified. Patients considered to have suffered a poor outcome (Group A) included all in-hospital mortality and major amputations, delayed discharges with a length of stay (LOS) over one standard deviation above the mean or any readmission under any specialty within 12 months. Group A included 247 patients (38.9%) and the good outcome group included the remaining 388 patients (61.1%) from which a sample of 99 patients were selected as controls (Group B).

RESULTS

Mean LOS for the entire study group was 14.4 ± 17.5 days, 12 month readmission rate was 29.1% and in-hospital mortality and major amputation rate was 2.7% and 1.4%, respectively. Pre-admission residence other than own home (OR 9.0; 95% CI 1.2-70.1; P = 0.036), atherosclerotic disease burden (OR 2.2; 95% CI 1.3-3.8; P = 0.003) and tissue loss (OR 3.0; 95% CI 1.6-5.3; P < 0.001) were identified as independent, statistically significant pre-operative predictors of poor outcome. Following discharge, group B patients had a significantly higher rate of amputation free survival and graft infection free survival (P < 0.001) compared to group A.

CONCLUSION

Recognition of pre-operative predictors of poor outcome should inform case selection and identify high risk patients requiring intensive perioperative optimisation and post discharge follow up.

2016 AHA/ACC Guideline on the Management of Patients With Lower Extremity Peripheral Artery Disease: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines

Since 1980, the American College of Cardiology (ACC) and American Heart Association (AHA) have translated scientific evidence into clinical practice guidelines with recommendations to improve cardiovascular health. These guidelines, based on systematic methods to evaluate and classify evidence, provide a cornerstone of quality cardiovascular care.

In response to reports from the Institute of Medicine1 ,2 and a mandate to evaluate new knowledge and maintain relevance at the point of care, the ACC/AHA Task Force on Clinical Practice Guidelines (Task Force) modified its methodology.3 –5 The relationships among guidelines, data standards, appropriate use criteria, and performance measures are addressed elsewhere.5

2016 AHA/ACC Guideline on the Management of Patients With Lower Extremity Peripheral Artery Disease: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines

Since 1980, the American College of Cardiology (ACC) and American Heart Association (AHA) have translated scientific evidence into clinical practice guidelines with recommendations to improve cardiovascular health. These guidelines, based on systematic methods to evaluate and classify evidence, provide a cornerstone of quality cardiovascular care.

In response to reports from the Institute of Medicine1 ,2 and a mandate to evaluate new knowledge and maintain relevance at the point of care, the ACC/AHA Task Force on Clinical Practice Guidelines (Task Force) modified its methodology.3 –5 The relationships among guidelines, data standards, appropriate use criteria, and performance measures are addressed elsewhere.5

Interdisciplinary treatment of diabetic foot wounds in the elderly: Low risk of amputations and mortality and good chance of being mobile with good quality of life

AIMS

A major proportion of patients with diabetic foot syndrome are older than 65 years. Little is known about outcomes of these elderly patients.

METHODS

We analysed 245 treatment cases in an observational single-centre study for comorbidities and outcomes over a 6-month period.

RESULTS

In all, 122 patients had peripheral arterial disease which was significantly increasing with age (n = 245, df = 1, χ² = 23.06, p ⩽ 0.0001). Increasing age correlated positively with decreasing rate of revascularisations (n = 122, df = 1, χ² = 4.23, p = 0.039). In total, 23 (9.3%) patients died in the observation period. In-hospital mortality was 2.8%, percentage of major amputations 2.8%. In the invasively treated subgroup, 13 out of 67 patients died within the observation period. Death after revascularisation was independent of age (n = 67, df = 1, χ² = 2.05, p = 0.153). Mobility decreased in the whole study group with increasing age. The risk of decrease with age was not influenced by revascularisation status.

CONCLUSION

With careful interdisciplinary evaluation, elderly patients with diabetic foot syndrome can be treated with favourable outcome. Mobility before and after treatment deserves more attention as a predictor of treatment success and outcome parameter.

Life Expectancy in Nonagenarians Suffering from Critical Limb Ischemia

BACKGROUND

Peripheral arterial disease has become an increasing problem in the aging population of the western world with a prevalence of 10-14%. This will result in a growing group of nonagenarians being referred to vascular surgeons, with an estimated growth of 2.5 times the number of nonagenarians between 2015 and 2040. Outcome results of nonagenarians suffering from critical limb ischemia (CLI) are scarce, which can cause difficulties in choosing superior therapy options. We propose that the life expectancy of nonagenarians suffering CLI compared to the overall population of nonagenarians is valuable information required in clinical decision-making.

METHODS

Between January 2012 and October 2015, all patients suffering from CLI were retrospectively reviewed in the Amphia Hospital, Breda, The Netherlands. Patients aged ≥90 years at admission were exclusively included. The main outcome result of this study is the life expectancy of nonagenarians suffering from CLI. Closely related to life expectancy is the primary end point of mortality. Secondary end points were adverse events, reoperations, and limb salvage.

RESULTS

A total of 36 patients were included in this study of which 27 were women. The median age was 92 years. Conservative therapy was performed in 61% of the patients. Based on 24 deaths (of which 19 were women), the mortality rate ratio of the study group relative to the Dutch population was 3.13 (95% confidence interval [CI], 2.00-4.66; P < 0.000001), adjusted for age and gender. Life expectancy in years of the total Dutch population at age 90 years in 2013 was 3.83 for men and 4.54 for women in contrast to, respectively, 1.23 (95% CI, 0.50-5.69) and 2.70 (95% CI, 1.76-3.74) years in our patient group.

CONCLUSIONS

CLI is a severe disease in nonagenarians with a dreadful life expectancy of 1.23 and 2.7 years for men and women, respectively, corresponding with an age- and gender-adjusted mortality rate ratio of 3.13 relative to the Dutch population. Individual factors such as preoperative status, arterial occlusive lesion, and especially predicted postoperative quality of life are important parameters in clinical decision-making. Results of conservative therapy might be acceptable in selected patients, but more focus on quality of life is needed to be conclusive.

Skeletal muscle ischemia-reperfusion injury and cyclosporine A in the aging rat

Old patients exhibit muscle impairments and increased perioperative risk during vascular surgery procedures. Although aging generally impairs protective mechanisms, data are lacking concerning skeletal muscle in elderly. We tested whether cyclosporine A (CsA), which protects skeletal muscle from ischemia-reperfusion (IR) in young rats, might reduce skeletal muscle mitochondrial dysfunction and oxidative stress in aging rats submitted to hindlimb IR. Wistar rats aged 71-73 weeks were randomized to IR (3 h unilateral tourniquet application and 2 h reperfusion) or IR + CsA (10 mg/kg cyclosporine IV before reperfusion). Maximal oxidative capacity (VM ax ), acceptor control ratio (ACR), and relative contribution of the mitochondrial respiratory chain complexes II, III, IV (VS ucc ), and IV (VTMPD /Asc ), together with calcium retention capacity (CRC) a marker of apoptosis, and tissue reactive oxygen species (ROS) production were determined in gastrocnemius muscles from both hindlimbs. Compared to the nonischemic hindlimb, IR significantly reduced mitochondrial coupling, VMax (from 7.34 ± 1.50 to 2.87 ± 1.22 μMO2 /min/g; P < 0.05; -70%), and VS ucc (from 6.14 ± 1.07 to 3.82 ± 0.83 μMO2 /min/g; P < 0.05; -42%) but not VTMPD /Asc . IR also decreased the CRC from 15.58 ± 3.85 to 6.19 ± 0.86 μMCa(2+) /min/g; P < 0.05; -42%). These alterations were not corrected by CsA (-77%, -49%, and -32% after IR for VM ax, VS ucc , and CRC, respectively). Further, CsA significantly increased ROS production in both hindlimbs (P < 0.05; +73%). In old rats, hindlimb IR impairs skeletal muscle mitochondrial function and increases oxidative stress. Cyclosporine A did not show protective effects.

Emergency surgery in the elderly: challenges and solutions

Elderly patients frequently present with surgical emergencies to health care providers, and outcomes in this group of patients remain poor. Contributing factors include frailty, preexisting comorbidity, polypharmacy, delayed diagnosis, and lack of timely and consultant-led treatment. In this review, we address common emergency surgical presentations in the elderly and highlight the specific challenges in caring for these patients. We summarize 20 years of reports by various medical bodies that have aimed to improve the care of these patients. To improve morbidity and mortality, several aspects of care need to be addressed. These include accurate and timely preoperative assessment to identify treatable pathology and, where possible, to consider and correct age-specific disease processes. Identification of patients in whom treatment would be futile or associated with high risk is needed to avoid unnecessary interventions and to give patients and carers realistic expectations. The use of multidisciplinary teams to identify common postoperative complications and age-specific syndromes is paramount. Prevention of complications is preferable to rescue treatment due to the high proportion of patients who fail to recover from adverse events. Even with successful surgical treatment, long-term functional decline and increased dependency are common. More research into emergency surgery in the elderly is needed to improve care for this growing group of vulnerable patients.