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360 Management of Chronic Venous Disorders
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47 Endovascular reconstruction of inferior vena cava obstructions 541
Young Erben and Haraldur Bjarnason
48 Open surgical reconstructions for non-malignant occlusion of large veins 553
Arjun Jayaraj, Peter Gloviczki, and Mark D. Fleming
49 The management of incompetent perforating veins with open and endoscopic surgery 563
Jeffrey M. Rhodes, Manju Kalra, and Peter Gloviczki
50 Radiofrequency and laser treatment ofincompetent perforating veins 577
Michael Harlander-Locke and Peter F. Lawrence
51 Local treatment of venous ulcers 585
William A. Marston and Thomas F. O’Donnell Jr.
52 Guidelines for the treatment of chronic venous disease in patients with venous ulcers 597
Thomas F. O’Donnell Jr. and Marc A. Passman
Clinical presentation and assessment of
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patients with venous disease
SARAH ONIDA, TRISTAN R. A. LANE, AND ALUN H. DAVIES
29
29.1 Introduction 361
29.2 The upper limb 361
29.3 The lower limb 364
29.1 INTRODUCTION
Patients with venous disease represent a signicant pro­portion of the patient population presenting to a vascular specialist. e nature of the disease is such that symp­toms can be non-specic and dicult to assess. e ability to take an appropriate history and examination of the patient prior to organizing investigations is of paramount importance.
e assessment and clinical presentation of patients with venous disease have been covered by previously published guidelines.1 In this chapter, we will review and expand on this topic.
29.2 THE UPPER LIMB
Vascular disorders of the upper extremity are less com­mon than in the lower limb, aecting approximately 10% of the population.2 e upper limb plays an important role in individuals with chronic disease (e.g., in the formation of arteriovenous stulae and the administration of long-term intravenous therapy). Signicant venous disease aecting the dominant arm can be life changing for an individual, and can potentially cause disability.
29. 2.1 Tra uma
Acute trauma and repetitive micro-trauma can both result in vascular disorders of the upper limb. is is particularly prevalent in middle-aged males employed in manual-type labor or young males involved in acute traumatic injury. Individuals working with handheld vibrating tools may be subject to chronic micro-trauma.
29.4 Conclusion 370 References 370
29.2.2 Intermittent subclavian/upper extremity vein obstruction
Although uncommon, compression of the subclavian vein can result in intermittent symptomatology including inter­mittent swelling, discomfort and tightness (relieved by rest), and abnormally prominent supercial veins. ese symptoms are aggravated in the erect position or when the arm is raised (e.g., when typing, driving, or painting a ceiling).
oracic outlet syndrome (TOS) may present in this manner,3 usually secondary to the presence of a cervical rib, a congenital brous band compressing neurovascular structures, or compression at the costoclavicular junction. TOS may be neurological or vascular in nature according to whether the brachial plexus or subclavian artery or vein is compressed. Patients with these symptoms should be evaluated with their shoulders in the neutral position and in specic stress tests to elicit signs and symptoms. ese include braced in the military position (Figure 29.1) or with
arms hyperabducted and externally rotated at the shoulder (Figure 29.2), as this will result in the subclavian vein being compressed by the scissor-like closure of the costoclavicular space. Arm discomfort, swelling, and venous distension in this position suggest intermittent venous outow obstruc­tion. However, as with arterial thoracic outlet obstruction, these ndings can be reproduced in approximately 50% of otherwise normal individuals at the extremes of move­ment.4 As subclavian vein thrombosis is a likely outcome of intermittent obstruction, active investigations with a view to surgical decompression are indicated. ese maneuvers are useful in assessing patients, but have been reported to have low sensitivity and specicity.
5
361
362 Clinical presentation and assessment of patients with venous disease
retraction of shoulder
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Backward and downward
Figure 29.1 Compression of the subclavian vein in the military position. When the shoulder is retracted backward and
downward, the subclavian vein is narrowed by the scissoring action of the clavicle and the first rib. (Adapted from AdamsJT etal. Surgery 1968;63:147– 65.)
Figure 29.2 Compression of the subclavian vein with hyperabduction of the arm. With hyperabduction and external rotation
of the arm, the clavicle rotates backward and downward and causes compression of the subclavian vein secondary to nar­rowing of the costoclavicular space. (Adapted from Adams JT etal. Surgery 1968;63:147–65.)
29.2.3 Subclavian/upper vein thrombosis
29.2.3.1 PRIMARY UPPER EXTREMITY DEEP VENOUS THROMBOSIS
Deep venous thrombosis (DVT) can arise as a result of hypercoagulable disorders or acute or recurrent trauma to a blood vessel.
Paget–Schroetter syndrome (eort vein thrombosis) describes a syndrome of axillosubclavian vein thrombosis associated with repetitive upper limb activities. e syn­drome is due to repeated trauma to the endothelium of the subclavian vein, which may be secondary to the presence of the aforementioned congenital abnormalities, leading to the
development of venous TOS. is syndrome is more com­mon in young, healthy men undertaking manual work, pref­erentially involving the dominant arm. Patients are usually symptomatic, presenting with arm discomfort, swelling, and dilated veins across the shoulder and upper arm (Urschel’s
6
e arm may be pale, cyanotic, or red. Patients usually
sign). present acutely or subacutely, with sudden onset of symp­toms. Oen, patients can identify a precipitating event, such as a sports injury.
Pulmonary embolism (PE) following upper extremity DVT (UEDVT) has been reported to occur in 2%–35% of individuals.
7
Post-thrombotic syndrome, characterized by
chronic pain, heaviness, and swelling, develops in up to
29.2 The upper limb 363
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45% of individuals with UEDVT. Recurrent thrombosis is another signicant complication. Considering the preva­lence of UEDVT in young men and its preferential involve­ment of the dominant arm, it is important to bear in mind the degree of disability which can result.
Duplex ultrasound is a useful initial test; however, con­trast computed tomography (CT) venography is the gold standard for diagnosis. Conservative management with anticoagulant therapy is suboptimal, with residual disabil­ity. Interventional treatment consists of catheter-directed thrombolysis with or without thoracic outlet decompres­sion with or without venoplasty.
29.2.3.2 SECONDARY UEDVT
DVT can result from direct trauma to the vessel—this can be iatrogenic or secondary to central venous cannu­lation, catheterization, or pacemaker insertion. Central venous catheters present a signicant risk of thrombosis, which is reported to occur in 14%–18% of cases.8 Recurrent intervention to the central veins can lead to stenosis and thrombosis. Unlike primary UEDVT, the onset of obstruc­tion is gradual with recurrent intervention. Patients, there­fore, have time to develop a collateral circulation and be asymptomatic. When present, the symptoms may be vague shoulder or neck discomfort or arm edema. Depending on the clinical situation, the rst presentation may be a non­functioning line; venous duplex imaging or a “linogram” (contrast injection) can reveal the thrombosis. Treatment involves thrombolysis if the thrombus is extensive, or sim­ply removal of the line and anticoagulation. Lines should be placed, if possible, in the internal jugular, cephalic, or external jugular vein, as chronic venous scarring with nar­rowing (stenosis) is particularly common following direct subclavian vein cannulation. A history of central venous cannulation is important in patients being considered for hemodialysis access and or arterial reconstruction using an arm vein due to the possibility of stenosis, especially in the case of prior subclavian vein usage. If present, post­operative limb swelling may result in signicant patient morbidity.
6
29.2.3.2.2 Phlegmasia cerulea dolens
is typically occurs in patients with advanced malignancy, oen being treated with chemotherapy via an indwelling central venous catheter. It is a variant of disseminated intra­vascular coagulation with thrombosis aecting not only the major veins, but also extending into the venules and the microcirculation. It is characterized by sudden, severe pain associated with intense swelling and discoloration of the aected limb. Development of a compartment syndrome is a potential complication and may even progress to venous gangrene requiring amputation. Further complications include PE and death.
29.2.3.2.3 Post-thrombotic syndromes
Post-thrombotic symptoms are reported in 30%–70% of patients following a primary subclavian vein thrombosis and consist of chronic discomfort, heaviness, and swell­ing, particularly in positions that compress collaterals in the costoclavicular space. However, the skin changes com­monly found in the lower limb are extremely rare.
29.2.3.2.4 Arteriovenous malformations
ese can be frequently misdiagnosed and are associated with localized limb hypertrophy. Examples include Klippel– Trenaunay syndrome (KTS) and Parkes–Weber syndrome (PWS); they usually aect the lower limb and are discussed in further detail below.
29.2.4 Examination findings
29.2.4.1 INSPECTION
Simply inspecting the arm and comparing it with the contra­lateral limb can yield useful clinical information. e exami­nation process helps eliminate arterial, lymphatic, orthopedic, or rheumatologic pathology from the dierential diagnoses.
Inspection should aim to identify the following: swell­ing, hypertrophy, discoloration, pallor, venous collaterals, prominent veins, scars and/or puncture sites, evidence of previous trauma, presence of indwelling lines, or cannulae.
29.2.3.2.1 Superficial venous thrombophlebitis
Supercial venous thrombophlebitis (SVT) is characterized by localized pain, redness, and swelling over a segment of a supercial vein. Iatrogenic injury, secondary to venous cannulation, is the most common cause, and is usually self-limiting. In some cases, the disease can be recurrent and persistent. Spontaneous thrombophlebitis, especially if recurrent, may be associated with malignant disease or thrombophilia. Upon examination, palpation will reveal tenderness over an underlying thrombus in the vein, with surrounding induration. If the thrombus in the vein is localized and not infected, there will not be signicant dis­tal swelling. rombus propagating to the deep veins is rare. A history of thrombophlebitis is important as it may have important consequences for venous access and the utility of an arm vein for arterial bypass.
29.2.4.2 PALPATION
1. To determine any dierence in temperature
2. Tenderness over an inamed supercial vein or in the
supraclavicular fossa
3. Evidence of obstructing pathology in the axilla and/or
supraclavicular fossa (e.g., enlarged lymph nodes or a
palpable cervical rib)
4. Hard and “cord-like” veins suggesting previous
thrombophlebitis
5. Presence of a full complement of pulses; presence of any
abnormal pulsations, either venous or arterial (arterio-
venous stula or malformation)
6. Presence of a palpable thrill
7. Presence of pitting edema
8. Allen’s test to conrm the arterial inow to the hand
and completeness of the palmar arch
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29.2.4.3 PERCUSSION
e presence of incompetence can be assessed by the “tap test” of Chevrier. is is performed with the patient stand­ing. One hand is placed on the proximal thigh, tapping dilated veins, whilst the other feels for a transmitted impulse in the veins of the lower leg. Venous return should ow from the foot to the groin. A palpable thrill in the lower leg veins is suggestive of continuity in the column of blood, imply­ing the presence of non-functional valves and, therefore, venousincompetence.
29.2 .4.4 AUSCULTATION
Listen for a continuous machinery murmur, which might indicate an arteriovenous malformation.
29.2.4.5 ADDITIONAL STEPS
e blood pressure should be measured in each arm and a full neurovascular examination should be performed. If the arm is swollen, the examination should include the axilla for lymphadenopathy and the breast to exclude malignancy. If there is concern about the adequacy of the deep venous outow, the arm can be observed for swell­ing aer application of a light supercial tourniquet. Symptoms of PE should prompt a full cardiorespiratory examination.
29.3 THE LOWER LIMB
Chronic venous disease is extremely common in the Western world, with variable incidence reported worldwide. Up to 80% of the general population will display evidence of venous disease, with 20%–64% suering from varicose veins (VVs) and 1%–2% aected by venous ulceration.9 Venous disease is known to negatively impact on quality of life10 and has a signicant association with depression.11 Furthermore, European and U.S. data have estimated the cost of venous disease to be approximately 1%–2% of the total health care budget.
12
29.3.1 Superficial venous thrombophlebitis
Occasionally, SVT can arise in association with a known or occult malignancy and, in this circumstance, is oen migratory. It may also be associated with thrombophilia.
SVT can occur in diseased VVs in the form of sterile thrombosis. is is particularly common in pregnancy and presents as a hard, tender knot in the vein, with intense pain and overlying erythema. e inammatory process can extend beyond the vein wall, resulting in bleeding.
If any clot propagates through junctional and non­junctional perforators, there is a signicant risk of PE. Investigation of the deep veins (e.g., by duplex scan) is gen­erally indicated, although symptoms of DVT may be absent.
On examination, signs of inammation are present, including erythema, warmth, and tenderness (Figure 29.3).
Upon resolution, there is oen a residual mass or cord in the aected supercial vein.
29.3.2 Deep venous thrombosis
DVT leading to PE is the most common cause of poten­tially preventable death in adult patients, with an annual incidence of 1:1000 adults.13 Risk factors include innate (age and hypercoagulability) and environmental (surgery, hospitalization, trauma, pregnancy, hormone therapy, obesity, and cancer) factors.
e mortality rate of those diagnosed with PE is approxi­mately 10%. Cadaveric studies have, however, identied PE in up to 30% of individuals with a DVT, and this nding highlights the fact that many PEs are subclinical. In fact, CT pulmonary angiography is now identifying even more small subclinical pulmonary emboli.14 Management depends upon prophylaxis, a high index of suspicion in “at-risk” patients regardless of symptoms, and early steps taken to provide a denitive diagnosis.
It is helpful to consider the development of DVT in two phases: embolic (early) and thrombotic (late). In the early phase, the thrombus is non-occlusive and not yet organized. As a result, there is no swelling, inammation, or distension of supercial collateral veins, and the leg may appear quite normal
SVT is an unfortunate term because it tends to be dissoci­ated from DVT when, in fact, the two commonly coexist as part of the venous thromboembolism spectrum.
SVT can occur spontaneously or secondary to trauma or intervention. Iatrogenic injury from intravenous cannula­tion and infusion of causative agents is the most common cause in normal veins. is can present as a tender lump or cord along the course of the vein. Treatment is via removal of the intravenous catheter, and resolution of the condition can take months. Iatrogenic thrombophlebitis may be complicated by bacterial infection, particularly in patients undergoing long-term intravenous cannulation. Septic phlebitis and suppurative thrombophlebitis are seri­ous complications requiring antibiotic treatment and even surgical debridement in some cases. Systemic features and abscess formation are uncommon.
Figure 29.3 Superficial thrombophlebitis of the left thigh.
29.3 The lower limb 365
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despite a signicant risk of embolism. In the late phase, the thrombus becomes occlusive and incites a phlebitis, anchor­ing it to the vein wall; in addition, inammatory signs and symptoms due to peri-phlebitis become apparent. e patient develops all the “typical” clinical features of DVT. At this stage, however, the risk of PE is low. e clinical diagnosis of DVT is dicult to make due to the poor sensitivity and specicity of “typical” signs. Even when symptoms are present, studies show that fewer than half of such patients have a DVT. Homans’ sign (pain in the calf elicited upon passive dorsiexion of the foot with the patient in the supine position with the knee exed) is unreliable, painful, and should not be performed.
e Wells15 scoring system is used to determine the probability of a patient having DVT before diagnostic tests are performed (Table 29.1). Patients with a score of 2 or more are more likely to have DVT.
Anatomically, it is useful to consider three patterns of disease (calf, femoral, and iliofemoral), although thrombosis is a dynamic process and proximal propagation is common.
Calf vein thrombosis is usually localized to one or two of the three major veins of the lower leg. Oen, the thrombi are non-obstructive and, due to the pairing of tibial and peroneal veins, venous drainage may remain adequate. Calf tenderness may be present, but signicant swelling is usually absent. In fact, most patients have no symptoms or signs whatsoever. About 20%, if untreated, may propagate into an above-knee
Table 29.1 Clinical model for predicting the pre-test
probability of deep venous thrombosis
Clinical characteristic Score
Active cancer (patient receiving treatment for
cancer within the previous 6 months or
currently receiving palliative treatment)
Paralysis, paresis, or recent plaster
immobilization of the lower extremities
Recently bedridden for 3 days or more or major
surgery within the previous 12 weeks requiring
general or regional anesthesia
Localized tenderness along the distribution of
the deep venous system
Entire leg swollen 1 Calf swelling at least 3 cm larger than on the
asymptomatic side (measured 10 cm below
tibial tuberosity)
Pitting edema confined to the symptomatic leg 1 Collateral superficial veins (non-varicose) 1 Previously documented deep venous thrombosis 1 Alternative diagnosis at least as likely as deep
venous thrombosis.
Source: Adapted from Wells PS et al. Lancet 1997;350(9094):
1795–8.
Note: A score of 2 or higher indicates that the probability of deep
venous thrombosis is likely; a score of less than 2 indicates that the probability of deep venous thrombosis is unlikely. In patients with symptoms in both legs, the more symptom­atic leg is used.
1
1
1
1
1
2
deep vein. Calf vein thrombosis is the most common site of lower limb DVT and may propagate to the femoral vein. When the popliteal or femoral vein is involved, there may be swelling at the ankle and at the calf of greater than 1 cm in most patients, but this rarely extends above the patella unless outow via the deep femoral vein is compromised.
Iliofemoral DVT may originate in the pelvic veins and not involve the distal femoral or calf veins in over 30% of patients. Consequently, duplex scanning commonly fails to detect it. Clinically, thigh swelling is present in addition to calf swelling. If the inferior vena cava is involved, signs and symptoms are usually bilateral. is type of thrombosis frequently has a marked inammatory component, espe­cially in pregnant women. Patients suspected of having this condition are best investigated via contrast CT venography or magnetic resonance venography.
29.3.3 Phlegmasia caerulea dolens
As described above with respect to the arm, extensive throm­bosis may lead to phlegmasia, which in turn may precipitate venous gangrene. Phlegmasia of the lower limb sequesters a considerable proportion of the patient’s blood and body uids, especially if bilateral. is can result in severe systemic eects, which may include hypovolemic shock and renal failure.
29.3.4 Arteriovenous malformations
ese most commonly aect the lower limb; KTS and PWS can present with abnormal varicosities.
KTS is a vascular malformation with capillary, venous, and lymphatic abnormalities. Patients characteristically exhibit the clinical triad of port wine stain, VVs, and limb hyper­trophy. e lower limb is aected in approximately 70% of individuals.16 Patients with KTS can present with SVT and bleeding from enlarged supercial veins. Typically, the VVs can present as anomalous veins or persistent embryonic veins; these are present in 72% of patients with KTS. e most com­mon abnormality is the persistence of a latera l embryonic vein, identiable in the lateral thigh and not joining the deep sys­tem. Abnormal medial or suprapubic veins are less common.
16
Similarly to KTS, PWS usually aects the lower limb and is characterized by the presence of fast-ow arteriovenous stulae. Patients present with cutaneous capillary malforma­tions, limb hypertrophy and arteriovenous malformations. Supercial veins are prominent secondary to increased pres­sure. A bruit, or machinery murmur, is audible in the aected limb, and a thrill is palpable throughout the cardiac cycle.
29.3.5 Varicose veins
29.3.5.1 EPIDEMIOLOGY
VVs are extremely common, with risk factors including fam­ily history, age, and obesity. eir prevalence is expected to continue rising due to the aging population and obesity epi­demic. VVs can be primary or secondary. Primary varicosi­ties are due to incompetence in the supercial veins, oen
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located at the junctions between the supercial and deep venous systems (saphenofemoral, saphenopopliteal, or perfo­rator incompetence). Secondary varicosities arise as a result of underlying pathology that has led to the development of venous hypertension in the supercial venous system. is includes DVT, deep venous incompetence, an intra-abdom­inal mass causing pressure on the pelvic veins, and obesity.
29.3.5.2 TRUNK VARICES
Trunk varices are VVs originating from the main stem and/or major tributaries of the great saphenous vein (GSV) and/or the small saphenous vein (SSV). ese are the result of valvular incompetence and occur in the GSV distri­bution in 80% of individuals and the SSV distribution in 20%. ey are usually 3 mm in diameter, lie subcutane­ously, are palpable, and do not discolor the overlying skin. Although more women than men present for assessment and treatment of their VVs, the actual prevalence is roughly equal between the sexes.
29.3.5.3 RETICULAR VARICES
ese lie deep in the dermis, are 2–3 mm in diameter, are not palpable, and may render the overlying skin darkish blue in color. ey do not blanch on pressure. ey may or may not be associated with trunk varices and are present in about 80% of the adult population.
Table 29.2 CEAP classification
C: Clinical classification
C0: No visible or palpable signs of venous disease C1: Telangiectasia or reticular veins C2: Varicose veins C3: Edema C4a: Hyperpigmentation or eczema C4b: Lipodermatosclerosis or atrophie blanche C5: Healed venous ulcer C6: Active venous ulcer s: Symptomatic, including ache, pain, tightness, skin
irritation, heaviness, and muscle cramps
a: Asymptomatic
E: Etiological classification
Ec: Congenital Ep: Primary (indeterminate cause) Es: Secondary (e.g., post-thrombotic) En: No venous cause identified
A: Anatomical classification
As: Superficial veins Ap: Perforator veins Ad: Deep veins An: No venous location identified
29.3.5.4 TELANGIECTASIA
Also termed spider or hyphen web veins, they are intrader­mal, 1 mm or less in diameter, impalpable, blanching, and render the overlying skin purple or bright red. Again, they may be associated with trunk and reticular varices and are present in 80% of adults.
29.3.5.5 SYMPTOMS
e presentation of venous disease occurs across a spectrum, including asymptomatic disease, VVs, skin changes, and ulceration. is is best described and assessed via the CEAP (Clinical, Etiological, Anatomical, Pathophysiological) classication, an international system that enables the assessment of venous disease and its severity (Table 29.2).
17
read and reticular veins can be unsightly but are not symptomatic. Although rarely life threatening, trunk VVs can have a signicant detrimental eect on a patient’s quality of life that should not be ignored.10 e rate of depression with trunk VVs is more than double that of the general population.11 is may be due in part to the cosmetic aspect and in part to the chronicity of the signs and symptoms of venous disease, which can interfere with patients’ daily activities.
Previous local guidance in the U.K. advised general practitioners to refer a patient with VVs to secondary care only in the presence of what was dened as advanced dis­ease (C4–C6). Lower CEAP grades were to be managed in the community with conservative measures, such as com­pression and lifestyle advice. Referral to secondary care was warranted in the presence of ulceration, bleeding,
P: pathophysiological classification
Pr: Reflux Po: Obstruction Pr,o: Reflux and obstruction Pn: No venous pathophysiology identifiable
Source: Adapted from Eklöf B et al. J Vasc Surg 2004;40(6):
1248–52.
progressive skin changes, recurrent SVT, and symptoms having a severe impact on quality of life.
However, venous disease is a progressive disorder; the rate of C class disease progression from C2 disease to higher classes as reported by the Bonn Vein Study is 2% per
18
annum.
is change in evidence has led national bodies to change referral pathways to all symptomatic disease with the aim of preventing, as opposed to treating, higher CEAP class stages. is is exemplied by the Society of Vascular Surgery (SVS) and the National Institute of Health and Care Excellence (NICE) guidelines (Table 29.3).
19
Patients with V Vs can be chal lenging to assess , as they may present with a wide variety of lower limb symptoms, includ­ing aching, a dragging feeling, heaviness and tension, swell­ing, tiredness, restless legs, nocturnal cramps, and itching. ese symptoms are not specic to VVs and are extremely common in the general population. It is important to con­sider dierential diagnoses (e.g., back pain) and arrange for the appropriate investigations to conrm the clinical suspi­cion. Management of patient expectations is paramount in the presence of non-specic symptoms, particularly when
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Table 29.3 National Institute for Health and Care
Excellence (NICE) guidance 2013
Referral to a vascular service
• Patients with symptomatic primary or recurrent varicose veins
• Patients with skin changes, such as pigmentation or eczema, thought to be caused by chronic venous insufficiency
• Superficial venous thrombosis and suspected venous incompetence
• A venous leg ulcer
• A healed venous leg ulcer
• Immediate referral to a vascular service is warranted if there is a bleeding varicose vein
Imaging
• Duplex ultrasound should be used to confirm the diagnosis of varicose veins and the extent of truncal reflux and to plan treatment for individuals with suspected primary or recurrent varicose veins
Treatment
• Endothermal ablation (radiofrequency or laser) is firstline
• If endothermal ablation is unsuitable, offer ultrasound-guided foam sclerotherapy
• If ultrasound-guided foam sclerotherapy is unsuitable, offer surgery
• If incompetent tributaries are present, consider treating them at the same time
• Do not offer compression hosiery to treat varicose veins unless interventional treatment is unsuitable
• Intervention should be avoided in pregnancy, wherecompression stockings should be offered
discussing treatment options. In a patient with evidence of reux on venous duplex, it is important to inform them that intervention may not resolve their symptoms.
29.3.6 Chronic venous insufficiency
VVs are a manifestation of chronic venous disease. Chronic venous insuciency (CVI) describes complications from the presence of high venous pressures in the lower limb, resulting in the cutaneous changes that are characteristic of the disease. Ultimately, this leads to skin damage, which may include ulceration of the lower leg.
29.3.6.1 SYMPTOMS
All of the symptoms described above for VVs may be associ­ated with CVI, and there is a stronger relationship between symptoms and disease severity in this group. is group of patients is signicantly older and, as such, comorbidities are more common, including peripheral vascular disease and diabetes. When assessing these patients, arterial disease and musculoskeletal problems should not be overlooked. Unlike patients with simple VVs, in whom actual swelling is
unusual, the majority of patients with CVI have a degree of edema. is is usually of mixed etiology: venous hyperten­sion, cardiac failure, and a degree of lymphedema. Severe pain is unusual and suggests that the patient may have coexisting arterial disease and/or infection.
29.3.6.2 HISTORY
is should explore the current episode of skin change/ venous ulceration and any previous episodes. A history of vascular risk factors should be taken, including previous thrombotic episodes, vascular and non-vascular interven­tions to the lower limb, pelvis, and abdomen, malignancy, arterial risk factors, diabetes, autoimmune disease, and smoking. A general history, including family history, medi­cations, and allergies, should also be taken. Furthermore, patients should be asked if symptoms of chronic venous dis­ease are present, such as itching, restlessness, aching, heavi­ness, swelling, and fatigue.
29.3.6.3 EXAMINATION FINDINGS
29.3.6.3.1 Position
e patient should be examined standing under a good light and in a warm room. Patients may feel faint and a support should be available. e examiner should be sat on the oor or, ideally, on a small stool with the patient on a platform with a handrail for balance.
29.3.6.3.2 Inspection
VVs are dilated and tortuous, due to the pathological reux commonly but not exclusively associated with a cephalad incompetent valve. e main trunks themselves may be dilated, but they are rarely tortuous, as they are supported by the deep fascia. e distribution of varices can give an indication as to whether they are GSV or SSV tributaries (orboth) (Figure 29.4). However, in obese patients or those
with previous surgical interventions, the anatomical con­nections may be less dened. In thin, athletic patients, highly visible and enlarged veins may be erroneously considered to be pathological. ese are uniformly dilated and do not exhibit tortuosity. It is also important to note the presence of telangiectasia during inspection.
Veins lying in an abnormal distribution (such as laterally along the leg, vulval, or in the abdominal wall) are suggestive of a congenital cause, an underlying pathological process (e.g., intra-abdominal mass), or pelvic congestion syndrome.
e signs of CVI include corona phlebectatica, venous eczema, lipodermatosclerosis, hemosiderin deposition, and open (or healed) ulceration. ese are most commonly found around the gaiter area, above the medial malleolus. Corona phlebectatica comprises a fan-shaped are of small intradermal varices on the medial aspect of the ankle and foot. e apex of the are is in the region of the one or more incompetent perforators and fans out towards the sole of the foot. Lipodermatosclerosis may be acute or chronic. In the acute phase, it is an inammatory reaction that may be mistaken for cellulitis or phlebitis. It will overlie an area of
368 Clinical presentation and assessment of patients with venous disease
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perforator incompetence but, unlike cellulitis, the overly­ing skin will not be warm. In the chronic phase, the skin of the mid to lower calf is pigmented, shiny, hard to the touch, and xed to the underlying chronically inamed and contracted subcutaneous tissue. Surrounding dermati­tis is common and may be a sensitivity reaction to topical medication applied to the area. White scar tissue (atrophie blanche) is oen present. e site of lipodermatosclerosis relates to maximum ambulatory pressure, usually commu­nicated by incompetent perforators. is also applies to the sites of ulceration, although as ulcers increase in size, this association becomes less dened. An ulcer characterized by a location or shape typical of pressure damage is an impor­tant pointer to coexisting arterial disease (see Table 29.4).
29.3.6.3.3 Palpation
Features such as temperature change, the presence of pulses or thrills, tenderness, induration, and edema provide useful information regarding the underlying disease process. e varicosities should also be palpated and an assessment of their course determined. In individuals with bilateral VVs, an abdominal and groin examination is essential to identify signs of intra-abdominal pathology.
Clinical tests such as the “tap” test of Chevrier or the Trendeleburg test have been used to help assess the patient with venous disease. e “tap” test of Chevrier consists of
Figure 29.4 Varicose veins in the right great saphenous
vein distribution.
percussing over a varix while palpating caudally to help trace out the vein. A palpable transmitted impulse suggests an
Table 29.4 Differential diagnosis of leg ulceration
Clinical features Arterial ulcer Venous ulcer
Gender Men > women Women > men Age >60 years 40–60 years, but patients may not present until much
older; multiple recurrences
Risk factors Smoking, diabetes, hyperlipidemia,
hypertension
Past medical
history
Symptomatology Severe pain is present unless there is
Site Pressure areas (malleoli, heels, metatarsal
Edge Regular, “punched-out,” indolent Irregular, with neo-epithelium Base Deep, green (sloughy), or black (necrotic)
Surrounding skin Features of chronic ischemia (hairless,
Veins Empty, guttering on elevation Full, usually varicose Swelling Absent Present
Most have a clear history of peripheral,
coronary, and cerebrovascular disease
severe neuropathy. Pain may be relieved by dependency
heads, fifth metatarsal base)
with no granulation tissue, exposing major tendons, bones, and joint
dry, pale)
Previous deep venous thrombosis, thrombophilia,
varicose veins
>20% clear history of deep venous thrombosis. History
suggestive of occult deep venous thrombosis is very common (e.g., leg swelling after childbirth, hip/knee replacement, or long bone fracture)
Approximately 30% have pain, but it is not usually severe
and may be relieved upon elevation
Medial (70%) and lateral (20%) or both malleoli and gaiter
area
Pink and granulating, may be covered in a yellow–green
slough
Lipodermatosclerosis (pigmentation, induration, varicose
eczema, atrophie blanche)
Figure 29.5 Ulceration in the gaiter area of the left lower
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limb.
29.3 The lower limb 369
incompetent vein between the two sites. e Trendelenburg test consists of applying a tourniquet to the upper thigh to compress the GSV. e patient is then asked to stand, with the examiner assessing for supercial vein lling. e test can be repeated at dierent levels to identify the level of incompe­tence. Handheld Doppler ca n be used as an adjunct to insonate over the site of incompetence. Again, this was said to be use­ful in the obese patient, but has been found to have a sensitiv­ity of as low as 56% at the saphenofemoral junction and 23% at the saphenopopliteal junction.20 Overall, these tests have been found to be poorly predictive of venous anatomy, and should not be relied upon to plan surgery. Duplex scanning is the gold standard investigative tool allowing hemodynamic assessment of the supercial and deep venous systems.
29.3.6.3.4 Ulcer assessment
Ulcer assessment (Figure 29.5) should include:
1. Description of the ulcer, concentrating on the features
outlined in Table 29.4
2. Pulse status and Ankle Brachial Index (ABI)
Guidelines 4.1.0 of the American Venous Forum on the clinical presentation and assessment of patients with venous disease
Level of evidence
(A: high quality; B:
moderate quality;
C: low or very low
quality)
No. Guideline
4.1.1 For clinical examination of the upper limb, we recommend inspection with comparison with the contralateral limb, palpation, auscultation, and examination of the axilla for adenopathy. In patients with adenopathy or swollen arms, we recommend examination of the breast to exclude malignancy.
4.1.2 For clinical examination of the lower limbs in patients with suspectedacute deep venous thrombosis, we recommend inspection (edema, cyanosis, and varicosity), palpation (tenderness and pitting edema), auscultation (arterial bruit and heart and lung examination), and examination of the deep and superficial veins andcalf muscles.
4.1.3 We suggest the use of the clinical scoring system of Wells to predict the pre-test probability of deep venous thrombosis.
4.1.4 For clinical examination of the lower limbs for varicosity and chronic venous insufficiency, we recommend inspection (varicosity, edema, skin discoloration, corona phlebectatica, ulcer, and lipodermatosclerosis), palpation (cord, varicosity, tenderness, induration, reflux, pulses, and thrill), auscultation (bruit), and examination of the groin and abdomen (masses, collateral veins, or lymphadenopathy) and ankle mobility.
4.1.5 Clinical presentation of patients with varicose veins may include symptoms like aching, heaviness and tension, sensation of swelling, tiredness, restless legs, nocturnal cramps, and itching. We suggest that there is little or no relationship between these symptoms and the presence and severity of varicose veins or the pattern and severity of reflux.
Grade of
recommendation
(1: strong;
2:weak)
1 B
1 B
2 B
1 B
2 B