The first ambulatory screening on thromboembolism: a multicentre, cross-sectional, observational study on risk factors for venous thromboembolism.

OBJECTIVES: To assess the prevalence of risk factors for venous thromboembolism (VTE) and the prevalence of recent (<1 year) VTE [including superficial vein thrombosis (SVT), deep vein thrombosis (DVT) and pulmonary embolism (PE)] amongst patients attending general practitioner (GP) surgeries. DESIGN: Multicentre, cross-sectional, observational study. SETTING: A total of 1536 GP surgeries. PARTICIPANTS: A total of 15 180 adult, co-operative subjects, who had consulted their GP for a health disorder and signed the informed consent form. INTERVENTIONS: None. MAIN OUTCOME MEASURES: Prevalence of known VTE risk factors graded according to importance and prevalence of recent (<1 year) VTE events (including SVT), based on interviews. RESULTS: About 1:5 patients had at least one strong risk factor and about 1:20 had at least two risk factors, with no difference between sexes. The prevalence of strong risk factors increased with age. Most were related to medical conditions: history of SVT and/or DVT/PE, heart failure and malignancy. About 3:4 women and 2:3 men had at least one moderate to weak risk factor; nearly 1:2 women and 1:3 men had at least two moderate to weak risk factors. The most common were: history of VTE, smoking, history of miscarriage, estrogen therapy, obesity, and varicose veins. Overall, 80% women and 67% men had at least one risk factor, and 50% women and 35% men had at least two risk factors. The prevalence of recent (<1 year) VTE was 3.4% in women and 2.4% in men, and increased with age. The majority of cases were SVT in both sexes (2.5% in women and 1.5% in men). CONCLUSIONS: The prevalence of risk factors for VTE amongst patients attending GP surgeries is high. GPs should bear this in mind during their daily practice.

Substrate availability other than glucose in the brain during euglycemia and insulin-induced hypoglycemia in dogs.

Alternative substrates other than glucose could be used by the brain. In this study we hypothesized that lactate and ketone bodies can provide a significant portion of oxidative brain substrates in insulin-dependent diabetes mellitus (IDDM). Six control (C) and six insulin-treated streptozotocin diabetic (IDDM) dogs were studied during euglycemia (EU) and acute insulin induced hypoglycemia (HYPO). During EU for similar plasma glucose concentration (5.5 +/- 0.4 v 5.2 +/- 0.2 mmol/L in IDDM dogs showed a higher baseline lactate concentration (1.5 +/- 0.25 v 0.74 +/- 0.10 mmol/L; P less than .05). The ketone body concentrations were also increased in IDDM dogs but this increase was not statistically significant. The brain glucose uptake was 6.9 +/- 0.6 mumol/kg/min in C and 5.4 +/- 0.7 in IDDM. Lactate was released by the brain both in IDDM dogs (11.36 +/- 1.8 mumol/kg/min) and in C dogs (3.87 +/- 0.9; P less than .05). The brain ketones rate of disappearance (Rd) was 0.3 +/- 0.05 mumol/kg/min in IDDM dogs and 0.19 +/- 0.08 in C dogs. During HYPO the glucose uptake across the brain was 2.88 +/- 0.7 mumol/kg/min in IDDM and 3.12 +/- 0.5 in C dogs. We observed an overall brain lactate release (3.21 +/- 1.7 mol/kg/min) in C dogs and a net uptake (13.44 +/- 1.1; P less than .01) in IDDM (P less than .01). The brain ketones Rd was 0.1 +/- 0.2 mumol/kg/min in IDDM and 0.1 +/- 0.1 in C dogs.(ABSTRACT TRUNCATED AT 250 WORDS)

Outpatient surgery of varices of the lower limbs: experience of 2,568 cases at four universities.

Outpatient surgery of varices of the lower limbs is currently considered a viable alternative to traditional surgery with hospitalization. This paper reports the experience of 4 university groups (Padua, Modena, Verona, Milan), where outpatient treatment has been used since 1987. From June 1987 to June 1992, 2,568 lower limb varices were treated in this way. Different techniques of anaesthesia were used (local infiltration, combined local and general, general, subarachnoid). In all cases, crossectomy was combined with short or long saphenous stripping. There were no intra- or perioperative deaths, and only limited morbidity. Postoperative hospitalization was required in only 2 cases: for hemorrhaging of the inguinal wound in one case, and headache 2 days after spinal anaesthesia in the other. In 2 separate samples of 100 patients, 88 and 89 indicated satisfaction with the surgical treatment. In conclusion, outpatient surgery of varices can be based on the same techniques as in-patients treatment. The risks of surgery and anaesthesia in specialised centres are very limited, with scope for a variety of anaesthetic techniques according to facilities available. Patients satisfaction is high.

Chronic venous disorders of the leg: epidemiology, outcomes, diagnosis and management. Summary of an evidence-based report of the VEINES task force. Venous Insufficiency Epidemiologic and Economic Studies.

BACKGROUND: To critically review the classification, epidemiology, outcomes, diagnosis and treatment of chronic venous disorders of the leg (CVDL), to issue evidence-based recommendations, and to identify areas requiring further research. METHODS: Articles identified by an extensive literature search were scored by members of an international task force. Only those articles with a moderate or strong rating for internal validity were retained. RESULTS: A scoring system weighing CVDL severity according to the probability of ulcer occurrence is proposed. Epidemiological data on the frequency of CVDL and its risk factors are reviewed. The following items are evaluated: costs associated with treatment; clinical outcomes related to CVDL and its treatment; available generic and disease-specific measures of quality of life; diagnostic procedures used to detect venous reflux; and efficacy of available treatments. CONCLUSIONS: CVDL is an important public health problem, based on its prevalence, cost and impact on quality of life. High-priority areas for research on CVDL are identified.

Carbohydrate antigen 19-9 (CA 19-9) and carcinoembryonic antigen (CEA) in pancreatic cancer. Role of age and liver dysfunction.

In order to ascertain the clinical usefulness of CA 19-9 in detecting pancreatic cancer in comparison with CEA, and to verify the influence of age and liver dysfunction on serum levels of these two antigens, serum CA 19-9 and CEA were assessed in 32 control subjects, 32 patients with pancreatic cancer, 26 with chronic pancreatitis and 43 with gastrointestinal extra-pancreatic diseases. Sensitivity, specificity and diagnostic accuracy of CA 19-9 and CEA in detecting pancreatic cancer were: 69% and 44%, 91% and 75%, 60% and 19% respectively. Linear correlations were observed between the age of the subjects on the one hand and CA 19-9 or CEA on the other. Significant relationships were also noticed between alanine-amino-transferase or bilirubin serum levels and CA 19-9 values. Serum CA 19-9 seems to be a better diagnostic tool than CEA in the assessment of pancreatic cancer; nevertheless the influence of liver dysfunction and age to some extent limits the diagnostic value of CA 19-9.

[The role of CEA, CA 19-9 and TPA in the diagnosis of pancreatic cancer. Evaluation by discriminant analysis]. / Ruolo del CEA, CA 19-9 e TPA nella diagnosi di carcinoma pancreatico. Valutazione con l'analisi discriminante.

In order to assess the relative value of CA 19-9, Tissue Polypeptide Antigen (TPA) and Carcinoembryonic Antigen (CEA), evaluated alone and in combination, in diagnosing pancreatic malignancy, serum CA 19-9, TPA and CEA were determined in 25 control subjects (CS), 26 pancreatic cancer (PC), 23 chronic pancreatitis (CP) and 21 benign extra-pancreatic diseases (EPD). The three markers were able to allocate the subjects correctly in 56.8% of the cases (CS 100%, PC 73.1%, CP 17.4%, EPD 28.6%). Sensitivity, specificity and diagnostic accuracy in detecting pancreatic cancer were respectively: 77%, 91% and 68% for CA 19-9; 92%, 75% and 67% for TPA; 50%, 84% and 34% for CEA; 73%, 91% and 64% for the three parameters evaluated simultaneously. CA 19-9 and TPA appear to be useful indices of pancreatic cancer with a satisfactory specificity when related to chronic pancreatitis; their diagnostic value seems to be comparable and better than that of CEA; the combination of these markers does not improve the results obtained by CA 19-9 or TPA alone.

[Classification and seriousness of chronic venous diseases of the lower limbs. A concensus document]. / Classificazione e stadi di gravità delle malattie venose croniche degli arti inferiori. Un documento di consensus.

It has been felt for a long time now that there is a need for a simple but complete classification of lower limb venous diseases, and many proposals concerning this matter have appeared in literature. The object of the new classification prepared at Maui, Hawaii, in 1994 is not only that of placing chronic venous diseases of the lower limbs under different profiles (clinical, etiological, anatomical, physiopathological), but also of supplying a numerical score concerning the seriousness of the disease.

[Echo-sclerotherapy in the management of varices of the lower extremities]. / La sclerosi ecoguidata nel trattamento delle varici degli arti inferiori.

Sclerotherapy has been used with satisfactory results, for several years in the treatment of varicose veins. Nevertheless sometimes sclerosis can be incomplete because of the morphology of lower limbs or because the varicose disease is not clinically evident. In addition, sclerotherapy can give rise to severe complications due to intrarterial or extraluminal injections. In order to exceed this limits, some authors suggested to use a new technique, the echosclerotherapy, which was presented for the first time in Strasburg 1989 by Knight and Vin. Echosclerotherapy is a good help for traditional sclerotherapy, especially when it is applied in the sclerosis of the short saphenous veins, of perforating veins or in unfavourable anatomical situations. From May to November 1993 at the Second Surgical Department of Padua University, 31 patients, 29 women and 3 men, have been treated by echosclerotherapy. 25 patients had great saphenous varicose veins; 3 patients had varices due to perforating veins of the popliteal fossa and 3 patients varices due to Hunter perforating veins. In 48.4% of cases we obtained a complete sclerosis of the vessel; in 38.7% a stump remained near the sapheno-femoral junction of about two centimeters; in one case the treatment was not completed and in one case remained a stump of ten centimeters. Only in two cases Echosclerotherapy was not able to obtain sclerosis. None of the patients had major complications and nobody had deep vein thrombosis. If we consider our results altogether we can say that in 87% of cases we had good results.(ABSTRACT TRUNCATED AT 250 WORDS)

[How to prevent saphenous nerve injury. A personal modified technique for the stripping of the long saphenous vein]. / Come prevenire le lesioni del nervo safeno. Una tecnica personale modificata per lo stripping della grande safena.

BACKGROUND: In literature the incidence of paresthesia caused by long stripping (LS) of the saphenous vein (SV) varies widely. Best results have been reported with the invagination technique by Van Der Stricht. However, this technique is associated with a high incidence of vein rupture and incomplete stripping. The aim of this study is to test a personal technique to avoid the SV rupture and to reduce the incidence of saphenous nerve injury. METHODS: Sixty-eight patients underwent LS of the SV from groin to ankle under monolateral spinal anesthesia on a one-day surgery basis using a personal technique combining external and invaginated saphenous stripping. All patients underwent a clinical re-evalutation 1, 3, 6, 12, 24 and 48 months after the operation. RESULTS: No intraoperative complications were recorded. Stripping of the long saphenous vein was complete in all cases without any rupture of the veins. Only one postoperative hematoma of the leg (1.5%) which was naturally reabsorbed, was recorded; four patients (5.9%) had transitory saphenous nerve injury. Permanent saphenous nerve damage was found in only one of 68 patients (1.5%). All the patients were discharged on the day of operation and we did not register any prolonged hospitalization. CONCLUSIONS: The result of our approach was a very low postoperative complication rate (1.5% of permanent neurological damage) without any rupture of the vein.

[Use of the human umbilical vein as a vascular prosthesis. Experimental study]. / Uso della vena ombelicale umana come protesi vascolare. Studio sperimentale.

The possible use of the human umbelical vein as a vascular transplant, following appropriate chemico-physical treatment is discussed. The properties of this new prosthesis have been studied on the basis, first, of physical and dynamic tests and, thereafter, following experimental intervention on 12 dogs in which a segment of the abdominal aorta was replaced. The animals were angiographed at varying times from the operation, up to a maximum of 8 months, and finally sacrificed for thorough histological study using various techniques.

[True aneurysms late complications of revascularization operations in the femoropopliteal tract]. / Aneurismi veri: complicanza tardiva degli interventi di rivascolarizzazione nel tratto femoropopliteo.

The Authors report three cases of true aneurysms following arterial reconstructive surgery in the femoropopliteal tract. One time it was an autologous venous graft and two times of an endarterectomized artery. At surgery the suture line was intact; so the differential diagnosis with false aneurysms was made. This complication is very rare (less than 1%). That natural history and the treatment are reviewed.

[Use of a latissimus dorsi myocutaneous flap in locally advanced breast cancer]. / L'uso del lembo miocutaneo di gran dorsale nel carcinoma mammario localmente avanzato.

Locally advanced breast cancer has a poor prognosis. Skin infiltration, ulceration and invasion of the chest wall, in the absence of distant metastases, worsen dramatically the quality of life. The Authors report 4 cases of one time wide resection and reconstruction using a pedicled myocutaneous flap of latissimus dorsi. This technique allowed good and rapid palliation of local symptoms.

[Subpopliteal muscular venous thrombosis in aching calf syndrome]. / Le trombosi venose muscolari sottopoplitee nella sindrome del polpaccio dolente.

The lower limbs of 84 consecutive patients (48 women and 36 men, age range: 16-75 years, average: 38 years) suffering from acute aching calf symptoms were examined with conventional and color Doppler US. Thirteen cases of muscular thrombosis in the calf were observed, together with 19 cases of deep venous thrombosis, 7 post-phlebitic syndromes, 9 lymphatic obstructions, 6 muscular hematomas and 7 popliteal articular cysts. Case history, clinical signs and phlebography do not allow the former condition to be differentiated definitely from the latter ones--especially hematomas and Baker's cysts which require different treatment protocols. The authors stress the value of conventional and color Doppler US imaging in the aching calf syndrome for its differential diagnostic capabilities. The other more complicated and expensive radiologic and laboratory techniques should be used in case of negative US findings only.

[Color Doppler and phlebography in the Paget-Schroetter syndrome]. / Color Doppler e flebografia nella sindrome di Paget-Schroetter.

The authors compared the adequacy of phlebography and color-Doppler US in the diagnosis of subclavian-axillary thrombosis, or Paget-Schroetter syndrome. Ten patients with subclavian-axillary thrombosis (8 men and 2 women, aged 16 to 55 years, mean age: 30 years) were examined over a two-year period. All of them underwent color-Doppler US and conventional phlebography in the same session. US findings were in agreement with phlebographic results in all cases as to thrombosis presence and site. The thrombosis involved the subclavian-axillary vein in 8 cases, the subclavian-innominate vein in 1 case and both veins in 1 case. Color-Doppler US, however, yielded no information relative to the superior vena cava; these data were always obtained with phlebography even though in 4 cases that segment had to be studied with phlebographic opacification via contralateral route. Furthermore, US failed to clearly demonstrate the thrombosis involving the last axillary valve; preserving this valve is indeed the main aim of fibrinolysis since its integrity, at this level, prevents venous reflux independent of subclavian-axillary trunk recanalization, thus reducing the severe symptomatologic sequelae following postphlebitic damage. Phlebography showed the valve and its possible involvement in all cases. In 4 cases phlebography also demonstrated compressive thoracic inlet syndrome, which had been missed by US, yielding the main anatomic elements for following surgery. To conclude, the authors suggest noninvasive color-Doppler US as the screening method of choice, while phlebography remains the gold-standard technique to be performed in all Doppler positive cases: in fact, the latter method yields more pieces of information and is more panoramic than the former, besides allowing fibrinolysis effects to be studied and the possible presence of an associated thoracic inlet syndrome to be investigated.

Do varicose veins affect quality of life? Results of an international population-based study.

PURPOSE: This study assessed the impact of varicose veins (VV) on quality of life (QOL) and patient-reported symptoms. METHODS: A cross-sectional population-based study was held in 166 general practices and 116 specialist clinics for venous disorders of the leg in Belgium, Canada (Quebec), France, and Italy. Study subjects included a sample of 259 reference patients without VV (CEAP class 0 or 1) and 1054 patients with VV who were classified as having VV alone (367; 34.8%), VV with edema (125; 11.9%), VV with skin changes (431; 40.9%), VV with healed ulcer (100; 9.5%), and VV with active ulcer (31; 2.9%). The main outcome measure was generic and disease-specific QOL, as measured by means of the Short-Form Health Survey-36 (SF-36) and the VEINES-QOL scale, and patient-reported symptoms as measured by the VEINES-SYM scale. RESULTS: In patients with VV, age-standardized mean SF-36 physical (PCS) and mental (MCS) scores were 45.6 and 46.1 in men and 44.2 and 43.2 in women, respectively, compared with population norms of 50. PCS scores decreased according to increasing severity of concomitant venous disease, with the lowest mean scores of 37.3 and 35.5 found in patients with VV and active ulcer. However, adjusted analyses showed no statistically significant differences between patients with VV alone and patients without VV for PCS (0.0), MCS (1.0), VEINES-QOL (-0.1), or VEINES-SYM (0.0) scores. In comparison with patients without VV, the largest differences were seen in patients with VV and edema (PCS, VEINES-QOL, and VEINES-SYM score differences of -1.8, -2.5, and -2.9, respectively) and in patients with VV and ulceration (differences of -3.3, -3.4, and -2.7, respectively). The high prevalence of major symptoms of venous disorders in patients in CEAP class 0 or 1 being treated for venous disorders (76.1% of patients had heaviness, aching legs, or swelling) might have contributed to the impairment of QOL in the reference group. CONCLUSION: Results indicate that impairment in physical QOL in patients with VV is associated with concomitant venous disease, rather than the presence of VV per se. Findings concerning QOL in patients with VV can only be reliably interpreted when concomitant venous disease is taken into account. In patients with VV alone, the objectives of cosmetic improvement and the improvement of QOL should be considered separately.