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A. Stella et al.
Loco-regional anaesthesia was the preferable method and was performed in 84% of patients.
Short-term results were encouraging, both regarding the technical success (96.7%) and the absence of 30-day conversions and re-interventions. Technical suc­cess was not reached in case of type Ia endoleak that has not inuenced a 30-day mortality.
The 30-day mortality was 2.5%, and it was lower if compared to literature 30-day mortality in elderly patients (2.8, 5 and 7.2%, respectively, by Geibusch etal. [16], Lange et al. [15] and Tsilimparis et al. [17]) but higher if compared to younger patients (1.4% Paravastu etal. [8]). Mortality was signicantly higher in ASA 4 patients compared with ASA<4 patients (9.4% vs 0.6%).
In our experience, perioperative morbidity was 23.5%, similar to morbidity rate reported from Tsilimparis etal. [17] (24.7%). Geibusch etal. [16] reported a lower morbidity rate (11.5%) without considering nephrological complications. If we consider only cardiopulmonary complications, our morbidity rate is 9.9%.
The mean follow-up was 36±18months, and the overall survival at 1, 2, 3 and 5years was 88±2%, 84±3%, 79±3% and 56±5%, respectively.
Among elderly, we divided and compared the population into two groups on the basis of the age: survival of patients over 85years was 66.8% vs 64.5% of patients between 80 and 85years at a mean follow-up of 35months (p:ns). Long-term mor­tality related to AAA was 3.1% vs 33.3% of total deaths.
Re-interventions rate at 35months of follow-up was 6.2%, slightly lower if com­pared to the current literature (8.2% Visser etal. [18] and 12.6% Biebl etal. [14]). Re-intervention rate in elderly was signicantly lower than in patients under 80s (23.4%). This could be related to the stricter attention offered to elderly.
In our experience, we evaluated other possible variables that can inuence sur­vival (COPD, CKF, PAOD and ASA 3 or ASA>3. At multivariate analysis, PAOD was one of the variables that affects more midterm survival (2years), together with ASA>3 score (signal of higher systemic comorbidities). Only patients with one or no risk factors reached the 5-year follow-up.
Conclusions
Octogenarians are affected by a higher risk of peri-procedural mortality com-
pared to patients under 80s, but this risk is sufciently low to allow EVAR treat-
ment in these patients.
Obviously the decision to treat this group of patients remains controversial and has to be valued case by case, considering comorbidities, aneurysm dimen­sion and life expectancy of each patient.
With a life expectancy of 6.1years, octogenarians with anatomical and clini­cal features t for EVAR seem to benet from a preventive AAA treatment. EVAR in >80-year-old patients is associated with an overall low early mortality rate of 2% especially in ASA<4 (0.6%).
According to the literature, we can state that age should not be considered rst as an exclusion criteria for these patients, not even if over 85years.
18 Aortic Aneurysm inElderly Patients
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Exclusion criteria should be clinical conditions of patient, because the sur­vival of patients with none or only one risk factor justies the treatment for AAA; however, patients with ASA 4 and PAOD had a signicantly higher mor­tality rate and reduction of life expectancy; therefore, the EVAR treatment could be justied only in particular cases of AAA with impending rupture.
References
1. Bennett JE, Li G, Foreman K, Best N, Kontis V, Pearson C, Hambly P, Ezzati M.The future of life expectancy and life expectancy inequalities in England and Wales: Bayesian spatiotempo­ral forecasting. Lancet. 2015;386(9989):163–70.
2. U.S.Census Bureau. U.S. interim projections by age, sex, race, and hispanic origin: 2000–
2050. http://www.census.gov/population/www/projections/usinterimproj/.
3. Eurostat. Population projections. http://epp.eurostat.ec.europa.eu/statistics_explained/index.
php/Population_projections/.
4. EVAR trial participants. Endovascular aneurysm repair versus open repair in patients with abdominal aortic aneurysm (EVAR trial 1): randomised controlled trial. Lancet. 2005;365(9478):2179–86.
5. Greenhalgh RM, Brown LC, Kwong GP, Powell JT, Thompson SG.EVAR trial participants. Comparison of endovascular aneurysm repair with open repair in patients with abdominal aor­tic aneurysm (EVAR trial 1), 30-day operative mortality results: randomised controlled trial. Lancet. 2004;364(9437):843–8.
6. Prinssen M, Verhoeven EL, Buth J, Cuypers PW, Van Sambeek MR, Balm R, etal. A random­ized trial comparing conventional and endovascular repair of abdominal aortic aneurysms. N Engl J Med. 2004;351(16):1607–18.
7. Lederle FA, Freischlag JA, Kyriakides TC, Padberg FT Jr, Matsumura JS, Kohler TR, etal. Outcomes following endovascular vs open repair of abdominal aortic aneurysm: a randomized trial. JAMA. 2009;302(14):1535–42.
8. Paravastu SC, Jayarajasingam R, Cottam R, Palfreyman SJ, Michaels JA, Thomas SM. Endovascular repair of abdominal aortic aneurysm. Cochrane Database Syst Rev. 2014;1:CD004178.
9. United Kingdom EVAR Trial Investigators, Greenhalgh RM, Brown LC, Powell JT, Thompson SG, Epstein D, Sculpher MJ.Endovascular versus open repair of abdominal aortic aneurysm. N Engl J Med. 2010;362:1863–71.
10. De Bruin JL, Baas AF, Buth J, Prinssen M, Verhoeven EL, Cuypers PW, van Sambeek MR, Balm R, Grobbee DE, Blankensteijn JD, DREAM Study Group. Long-term outcome of open or endovascular repair of abdominal aortic aneurysm. N Engl J Med. 2010;362(20):1881–9.
11. Schermerhorn ML, Buck DB, O’Malley AJ, Curran T, McCallum JC, Darling J, Landon BE.Long-term outcomes of abdominal aortic aneurysm in the Medicare population. N Engl J Med. 2015;373(4):328–38.
12. Chaikof EL, Fillinger MF, Matsumura JS, Rutherford RB, White GH, Blankensteijn JD, Bernhard VM, Harris PL, Kent KC, May J, Veith FJ, Zarins CK.Identifying and grading factors that modify the outcome of endovascular aortic aneurysm repair. J Vasc Surg. 2002;35:1061–6.
13. Pol RA, Zeebregts CJ, van Sterkenburg SM, Reijnen MM, ENGAGE Investigators. Thirty-day outcome and quality of life after endovascular abdominal aortic aneurysm repair in octogenar­ians based on the endurant stent graft natural selection global postmarket registry (ENGAGE). J Vasc Surg. 2012;56(1):27–35.
14. Biebl M, Lau LL, Hakaim AG, Oldenburg WA, Klocker J, Neuhauser B, McKinney JM, Paz­Fumagalli R.Midterm outcome of endovascular aortic aneurysm repair in octogenarians: a single institution’s experience. J Vasc Surg. 2004;40(3):435–42.
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15. Lange C, Leurs LJ, Buth J, Myhre HO, EUROSTAR collaborators. Endovascular repair of abdominal aortic aneurysm in octogenarians: an analysis based on EUROSTAR data. J Vasc Surg. 2005;42(4):624–30.
16. Geisbüsch P, Katzen BT, Tsoukas AI, Arango D, Peña CS, Benenati JF. Endovascular repair of infrarenal aortic aneurysms in octogenarians and nonagenarians. J Vasc Surg. 2011;54(6):1605–13.
17. Tsilimparis N, Perez S, Dayama A, Ricotta JJ 2nd. Age-stratied results from 20,095 aortoiliac aneurysm repairs: should we approach octogenarians and nonagenarians differently? J Am Coll Surg. 2012;215(5):690–701.
18. Visser L, Pol RA, Tielliu IF, van den Dungen JJ, Zeebregts CJ.A limited and customized follow-up seems justied after endovascular abdominal aneurysm repair in octogenarians. J Vasc Surg. 2014;59(5):1232–40.
19. Pol RA, Zeebregts CJ, van Sterkenburg SM, Ferreira LM, Goktay Y, Reijnen MM, Endurant Stent Graft Natural Selection Global Postmarket Registry (ENGAGE) Investigators. Outcome and quality of life after endovascular abdominal aortic aneurysm repair in octogenarians. J Vasc Surg. 2014;60(2):308–17.
20. Prenner SB, Turnbull IC, Serrao GW, Fishman E, Ellozy SH, Vouyouka AG, Marin ML, Faries PL.Outcome of elective endovascular abdominal aortic aneurysm repair in nonagenarians. J Vasc Surg. 2011;54(2):287–94.
A. Stella et al.
Venous Disorders oftheLeg
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Stefanode Franciscis andRaffaeleSerra
Abbreviations
ASVAL Ablation sélective des varices sous anésthesie locale CDT Catheter-directed thrombolysis CEAP Clinical-etiology-anatomy-pathophysiology CHIVA Cure Hémodynamique de l’insufsance veineuse en ambulatoire CT Compression therapy CVD Chronic venous disease CVI Chronic venous insufciency CVLU Chronic venous leg ulceration DVT Deep vein thrombosis ECM Extracellular matrix EVLA Endovascular laser therapy GAG Glycosaminoglycan LMWH Low molecular weight heparin PAPS Percutaneous ablation of perforators PAT Percutaneous aspiration thrombectomy PCDT Pharmacomechanical catheter-directed thrombolysis PTS Post-thrombotic syndrome RFA Radiofrequency ablation SEPS Subfascial endoscopic perforator vein surgery VAD Venoactive drug
19
S. de Franciscis • R. Serra (*) Department of Medical and Surgical Sciences, Interuniversity Center of Phlebolymphology (CIFL), International Research and Educational, Program in Clinical and Experimental Biotechnology, University Magna Graecia of Catanzaro, Catanzaro, Italy e-mail: defranci@unicz.it; rserra@unicz.it
© Springer International Publishing AG, part of Springer Nature 2018 A. Crucitti (ed.), Surgical Management of Elderly Patients,
https://doi.org/10.1007/978-3-319-60861-7_19
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288
b) Lipodermatosclerosis
Healed venous ulcerC6Active venus ulcer
S. de Franciscis and R. Serra
19.1 Introduction
Venous disorders of the leg refer to either chronic or acute conditions related to or caused by veins that become diseased or abnormal. These problems can include chronic venous disease (CVD) which involves primarily the supercial venous system and deep vein thrombosis (DVT) which affects primarily the deep venous system.
CVD and DVT may occur at any age; nevertheless, most of the complications of
venous disorders are more prevalent in the elderly [1].
19.2 Chronic Venous Disease
The prevalence of chronic venous disease (CVD) is <10% for men and for women younger than 30years and goes up to 57 and 77% in men and women aged >70years, respectively. The spectrum of CVD can be described using the clinical-etiology­anatomy-pathophysiology (CEAP) classication, and according to the “C” (clinical classes) of this classication, it ranges from the mild manifestations such as telan­giectases/reticular veins (C1) and truncal varicose veins (C2) to the more advanced signs represented by leg edema (C3) and the serious dermal manifestations
C1
teleangectasies and
reticular veins
ab
Fig. 19.1 Clinical classes (C) of the CEAP classication
C4
a) Venous eczema
C2
varicose veins
C3
edema
C5
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consisting of hyperpigmentation, eczema, lipodermatosclerosis (C4), and chronic venous leg ulceration (CVLU) (C5–C6) (Fig.19.1).
Clinical manifestations from C3 to C6 pertain to the condition called chronic
venous insufciency (CVI).
Each clinical class is further characterized by a subscript for the presence of symptoms (S, symptomatic) or absence of symptoms (A, asymptomatic). Symptoms include aching, pain, tightness, itching, heaviness, and muscle cramps. A particular subgroup of patients are dened C0s, which means that these patients have no evi­dent sign or instrumental abnormalities, but they complain of venous symptoms.
Loss of calf muscle pump and poor mobility in elderly patients more often lead to important increase of venous hypertension, with subsequent skin changes forma­tion and, thus, with the risk of venous ulceration becoming even higher. In fact, venous ulcers occur more commonly in the elderly, the peak prevalence occurring between ages 60 and 80years. Venous ulceration is a condition that often requires long-term care. Nonhealing ulcers can be complicated by infection that may require hospitalization. Furthermore, venous ulcer recurrences are common with rates rang­ing from 54 to 78%. In the western world, the treatment cost of venous ulcers has been estimated to require up to 2% of the annual health-care budget.
Mixed arterial and venous disease may also coexist in elderly patients. In fact, in several clinical studies, the reported incidence of arterial insufciency in patients with venous ulceration has reached up to 30%, especially in the elderly. This condi­tion is responsible for chronic delayed healing among lower extremity wounds.
From a clinical point of view, venous ulcers are typically supercial and irregu­larly shaped. Granulation tissue is often present along with the aforementioned signs of CVI, such as edema and skin changes. These wounds traditionally present in the lower third of the leg, especially around the gaiter region. Usually, there is no pain unless the ulcer becomes infected.
On the other side, arterial ulcers can have a punched out appearance with distinct borders and may involve the foot and/or the toes, and at the end stage, gangrene may be present. Furthermore, patients with arterial ulcers may complain of more leg pain compared to patients with venous ulcers alone.
In patients suffering from an ulcer of mixed arterial and venous origin, features of both ulcer types may be present (Fig.
19.2).
Fig. 19.2 Mixed arterial and venous ulcer
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Although many elderly patients have associated diseases or particular medical conditions that make them less suitable for a general anesthetic, the full range of interventions dedicated for the supercial venous disease can be performed safely under tumescent local anesthetic, often as an outpatient, with considerable advan­tage for the elderly.
There is no evidence that surgical treatment of CVD in the elderly is less safe or less effective than in younger people. Conversely, elderly patients with CVD, being more likely to have complications for their condition, have the most gain from active treatment.
Apart from classic operations such as saphenectomy, surgery has made impor­tant progress in the last 25years. Operations are now more limited, considering the extension of the segments to treat, and they intend to correct the hemodynamic alterations, preserving the competent venous segments (hemodynamic surgery).
Furthermore the treatment of varicose veins has also undergone dramatic changes with the introduction of percutaneous endovenous ablation techniques, including endovascular laser therapy (EVLA), radiofrequency ablation (RFA), and liquid or foam sclerotherapy [111].
19.2.1 Operating Techniques
The basic indication for the treatment of varicose veins in the elderly is the preven­tion of possible secondary complications and sequels which are particularly fre­quent in these patients. Therefore, for these patients, varicose vein surgery is basically a preventive surgery [718].
19.2.1.1 Saphenous Stripping
This surgery involves making incisions (usually the groin and medial thigh, for the short vein stripping, or the lower part of the leg, for the long vein stripping) followed by insertion of a special metal or plastic wire into the vein. The vein is attached to the wire and then pulled out from the body. The incisions are stitched up, and a pressure bandage followed by elastic stockings is a common recovery prescription. This procedure may be performed under general or locoregional anesthetic and more frequently under local or tumescent anes­thetic. For this reason and for the risk of saphenous nerve injury, more fre­quently in the elderly, the reasons explained below are not routinely considered for elderly people.
Saphenous nerve injury is known for a long time to be a potential complication of the saphenous vein long stripping. The proximity of the vein and nerve, espe­cially at the level of shank, results in injuries during the vein resection, especially in the patients, such as the elderly, with advanced varicose veins in this area caused by a large number of insufcient perforators. Additionally, in the elderly patients suf­fering from long-lasting varicose veins, it can lead to an accretion of the widened vein, resulting in the saphenous nerve neuropraxy. This pathology also facilitates in injury of the nerve bers during the operation [912].
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19.2.1.2 Local Phlebectomy andHemodynamic Correction
Surgical treatment for varicose veins had a great and creative improvement with Muller’s invention of the local stab avulsion method, developing some specic and useful hooks. Soon after, Franceschi developed a minimally invasive surgical approach, the cure hémodynamique de l’insufsance veineuse en ambulatoire (CHIVA), meaning a therapy (cure) which preserves veins and restores the hemody­namics for insufcient veins on an outpatient basis. In fact, CHIVA strategy aims to perform a hemodynamic correction, more than to a radical avulsion of the varicose bed, based upon a meticulous preoperative duplex ultrasound examination. CHIVA treatment corrects the blood ow by using ligatures of specic blood vessels. In fact, the duplex ultrasound examination allows the physician to create a precise map of the patient’s venous anatomy and blood ow and, therefore, determine how to correct it. This technique may preserve the saphenous veins, and most of all, by sup­pressing the hemodynamic overload, it normalizes the venous ow and make vari­cose vein disappear. Generally the result is an efcient, cheap, and ambulatory minimally invasive surgery.
Recently the ablation sélective des varices sous anésthesie locale (ASVAL), based on the ascending theory, describing the disease process as developing in the lower most part of the leg and propagating cranially, aims to eliminate collateral varicose veins, considered at the origin of the disease, under local anesthesia and by means of multiple micro-incisions, and without treating the saphenous trunk [10,12,1316].
19.2.1.3 Endovenous Thermal Ablation Surgery
The advantages of endovascular ablation are lower incidence of complications, shorter post-intervention hospital stays, less postoperative pain, and earlier return to normal physical activities and, therefore, are particular adequate in the elderly.
The main techniques are represented by endovenous laser ablation (EVLA) and radiofrequency ablation (RFA) which are performed ultrasonographically guided and under tumescent local anesthetic.
EVLA is performed by introducing a laser ber into the lumen of the vein to treat. The heat generated and transferred by the laser energy causes a direct thermal injury to the vein wall, resulting in the destruction of the endothelial wall, collagen denaturation of the media, and then followed by brosis. EVLA can be used to treat both axial veins and collaterals.
RFA is performed by inserting a special radiofrequency catheter into the targeted saphenous vessel under ultrasound guidance from the knee to the groin, usually up to the level of the epigastric vein or 1–2cm away from the saphenofemoral junction. The initial thermal injury is then followed by brosis of the treated vein. This pro­cedure appears to be safe and efcacious, shortening the operation time and pre­venting patient procedural discomfort. RFA has been initially proposed for the treatment of axial reux (saphenous veins) but seems to have also a role in the treat­ment of tributary varices.
The introduction of ultrasonographically guided thermal ablations has also revo­lutionized the techniques of perforator vein ablation. Percutaneous ablation of per­forators (PAPS) consists in the application of an ablative technique (RF, EVLA, or
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even sclerotherapy) within the lumen of the target veins through an ultrasound­guided percutaneous intraluminal port. These techniques seem to get advantages over the most traditional ablative treatments (Linton and Cockett procedures) and even over the less invasive subfascial endoscopic perforator vein surgery (SEPS) for the necessity of simple local anesthesia and for the possibility to be performed ambulatorially because no dissections and incisions are needed [1,11,17].
19.2.1.4 Skin Grafts
One of the most important surgical procedures for the treatment of CVLUs is skin grafting, especially when lesions are large and refractory to standard treatments.
Autografts, allografts, or human skin equivalents can be used, with a resulting healing rate of 73%. Overall, all patients suffering with CVLUs and being consid­ered for skin graft should undergo surgery for venous insufciency in order to cor­rect the underlying venous abnormalities causing the ulcerations and avoid surgical breakdown. Skin grafting for CVLUs can also be followed by additional treatment to try to speed up the healing such as long-term LMWH therapy. Also the use of platelet gel after skin grafting appears to be effective and a safe tool in order to increase the healing rate of difcult-to-treat ulcers, reaching a healing rate up to 90% at 5years [1, 18].
19.2.1.5 Nonsurgical Treatments
Nonsurgical approaches are mainly represented by compression therapy, medical treatment, and sclerotherapy that will be briey resumed here for completeness, as they are not included within the aim and the scope of this surgical chapter, but they may be used as adjuvant treatments to surgery.
Currently, compression therapy represents the basic and most frequently used treatment of CVD and its complications. This treatment has been extensively vali­dated. Compression therapy (CT) must overcome the abnormal hemodynamics of venous hypertension; it is important to achieve the optimal pressure according to the clinical class of the patient. Therefore, CT has been designed as the primary thera­peutic modality for healing venous ulcers and as adjuvant device to supercial vein surgery and skin grafting in order to avoid also ulcer recurrence. CT may be exe­cuted by compression stockings and compression bandages. Depending on the clin­ical situations, generally the grade of compression may range 10–40mmHg or even more.
Difculties regarding putting on and removing of the compression stockings remain signicant in the elderly population, and this may affect the compliance of this category of patients to these important and useful devices.
Venoactive drugs (VADs) have been employed, along the years, in case of all the clinical classes of CVD.The most used are avonoids which seem to reduce endo­thelial alterations and improve the property of smooth muscle cells within the media of the vein, with phlebotonic effect. Glycosaminoglycan (GAG) drugs seem to reduce inammation and extracellular matrix (ECM) imbalance which is one of the major components of CVD.
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Sclerotherapy has become a very popular treatment for varicose veins in Europe. It consists of the injection of a sclerosing substance into the reuxing vessels. The sclerosant substance, in the liquid form or in the foam form if it has been mixed with a gas, such as air, is able to determine chemical endothelial damage and vessel bro­sis [1, 19].
19.3 Deep Vein Thrombosis
One of the most recent understood aspects of venous deep vein thrombosis (DVT) risk is advancing age. Incidence rates of DVT increase dramatically at about age 55 and by age 80 are nearly 1in 100 per year, approximately 1000-fold higher than for those aged 45 or younger. Furthermore, rates of its life-threatening complication pulmonary embolism (PE) rise faster than DVT in the elderly so that the disease has greater fatal impact in this population. For DVT (Fig.19.3), prompt, effective, and sustained anticoagulation is pivotal because of the risk of recurrent events, includ­ing PE, and also complications such as post-thrombotic syndrome (PTS) and chronic thromboembolic pulmonary hypertension, which may greatly affect a patient’s quality of life, especially in the elderly.
PTS is the consequence of venous valvular incompetence, venous outow obstruction, and calf muscle pump dysfunction following an acute episode of DVT.Signs and symptoms of PTS may include lower extremity pain, edema, hyper­pigmentation, and CVLU.For PTS, proximal DVT and recurrent ipsilateral DVT are the two principal established risk factors for PTS, and the best way to prevent it is to provide optimal anticoagulation for the acute phase of DVT once it occurs. From this, it follows that most of the treatment of DVT pertains to medicine rather than surgery.
Fig. 19.3 Deep vein thrombosis