Accuracy of strain-gauge plethysmography as a diagnostic test in clinically suspected deep venous thrombosis

Pini, M; Potì, R; Poli, T; Tagliaferri, Annarita; Dettori, A G

doi:10.1016/0049-3848(84)90210-x

Cited by 13 publications

(9 citation statements)

References 6 publications

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“…The patients in this study had been in bed for approximately 36 h by the time of the postoperative measurements and a degree of oedema may be anticipated even if it was not obvious clinically. In the presence of deep vein thrombosis, calf maximum venous outflow decreases by over 50 % (Barnes et al, 1977;Pini et al, 1984)-a change greater than that seen in the patients in this study.…”

Section: Discussionmentioning

confidence: 48%

“…The small and insignificant decrease in calf maximum venous outflow after surgery is difficult to explain. Oedema may cause an apparent reduction in maximum venous outflow (Pini et al, 1984), presumably by decreasing tissue elastance. The patients in this study had been in bed for approximately 36 h by the time of the postoperative measurements and a degree of oedema may be anticipated even if it was not obvious clinically.…”

Section: Discussionmentioning

confidence: 99%

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Effect of Extradural Bupivacaine or I.V. Diamorphine on Calf Blood Flow in Patients After Surgery

Bowler

Lamont

Scott

1987

British Journal of Anaesthesia

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Strain gauge venous occlusion plethysmography was used to measure arterial flow, venous capacity and maximum venous outflow in the calves of seven patients undergoing gynaecological surgery. Plethysmography was performed before surgery, before, and for 30 min after, the extradural injection of 0.5% bupivacaine. On the morning after surgery, 0.5% bupivacaine was injected extradurally and plethysmography performed. With regression of the extradural blockade and the re-emergence of pain, analgesia was produced with diamorphine i.v. and plethysmography repeated. Control measurements were also made. Compared with a mean control value of 100% (3.4 ml dl-1 min-1) calf arterial flow increased from 160% to 285% after the preoperative extradural blockade, and from 123% to 191% following the postoperative analgesic extradural blockade, but there was no significant change when pain was relieved after i.v. diamorphine. Mean arterial pressure changed insignificantly after all the injections. No significant changes were measured in venous capacity or maximum venous outflow.

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Section: Discussionmentioning

confidence: 48%

Section: Discussionmentioning

confidence: 99%

Effect of Extradural Bupivacaine or I.V. Diamorphine on Calf Blood Flow in Patients After Surgery

Bowler

Lamont

Scott

1987

British Journal of Anaesthesia

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“…We per formed the measurements with the legs elevated which is adequate to measure calf AF, VC and MVO at rest. It has been reported that SGP is a reliable test in excluding DVT [1,8,22], Doppler ultrasound is sensitive, specific and reliable as a screening test for DVT [5,6,8,16,20]. The predictive value of negative Doppler examination [20] and both negative SGP and Doppler [8] is 90% in suspected DVT as compared to phlebography.…”

Section: Discussionmentioning

confidence: 99%

Hemodynamics of the Legs and Clinical Symptoms following Regional Blocks for Transurethral Surgery

Perhoniemi¹,

Linko²

1986

Eur Urol

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“…Miron 76 Arrivé 60 Wells 75 Cornuz 63 Random effects model Pooled positive LR = 0.20 (0.10 to 0.41) Cochran-Q = 7.08; df = 3 (p = 0.0694) Gray 212 Comerota 191 Cruickshank 211 Barzi 184 Ginsberg Agnelli 177 Pazzagli 209 Paiement 213 Pooled sensitivity = 0. Gray 212 Comerota 191 Cruickshank 211 Barzi 184 Ginsberg 210 Agnelli 177 Pazzagli 209 Paiement 213 Pooled specificity = 0.96 (0.95 to 0.97) 2 = 90.15; df = 7 (p = 0.0000) Pini 152 Robinson 232 Maskell 231 Barnes 230 Olsson 229 Bournameaux 228 Pini 227 Aburahma 226 Vega Gomez 225 de Faucal 224 de Valois 223 Aburahma 222 Laverick 221 Croal 220 Croal 220 Warwick 219 Elford 218 Goddard 217 Goddard 217 Flanagan 216 Pooled sensitivity = 0. Labropoulos 238 Kalodiki 237 George 236 Hosoi 235 Pooled sensitivity = 0.…”

Section: Figure 59 Empirical Clinical Probability: Likelihood Ratio Omentioning

confidence: 99%

Measurement of the clinical and cost-effectiveness of non-invasive diagnostic testing strategies for deep vein thrombosis

Goodacre

Sampson²,

Stevenson³

et al. 2006

Health Technol Assess

147

119

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Diagnostic algorithms based on a combination of Wells score, D-dimer and ultrasound (with repeat if negative) are feasible at most UK hospitals and are among the most cost-effective. Use of repeat scanning depends on the threshold for willingness to pay for health gain. Further diagnostic testing for patients with a low Wells score and negative D-dimer is unlikely to represent a cost-effective use of resources. Recommendations for research include the evaluation of the costs and outcomes of using the optimal diagnostic algorithms in routine practice, the development and evaluation of algorithms appropriate for specific groups of patients with suspected DVT, such as intravenous drug abusers, pregnant patients and those with previous DVT, the evaluation of the role of plethysmography: interaction with other diagnostic tests, outcome of low-risk patients with negative plethysmography and measurement of the costs of providing plethysmography, and methodological research into the incorporation of meta-analytic data into decision-analytic modelling.

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Accuracy of strain-gauge plethysmography as a diagnostic test in clinically suspected deep venous thrombosis

Cited by 13 publications

References 6 publications

Effect of Extradural Bupivacaine or I.V. Diamorphine on Calf Blood Flow in Patients After Surgery

Effect of Extradural Bupivacaine or I.V. Diamorphine on Calf Blood Flow in Patients After Surgery

Hemodynamics of the Legs and Clinical Symptoms following Regional Blocks for Transurethral Surgery

Measurement of the clinical and cost-effectiveness of non-invasive diagnostic testing strategies for deep vein thrombosis

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