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Enhancing venous outflow in the lower limb with intermittent pneumatic compression. A comparative haemodynamic analysis on the effect of foot vs. calf vs. foot and calf compression.
Eur J Vasc Endovasc Surg. 2000 Mar; 19(3):250-60.EJ

Abstract

OBJECTIVES

intermittent pneumatic compression (IPC), an established method of deep-vein thrombosis prophylaxis, is also an effective means of leg inflow enhancement, improving the walking capacity and ankle pressure of claudicants, long-term. This study, using duplex ultrasonography, compares the haemodynamic effect of IPC of the (a) foot (at 120 mmHg [IPC(foot/120 mmHg)], and 180 mmHg [IPC(foot/180 mmHg)]), (b) calf (IPC(calf), 120 mmHg) and (c) both simultaneously (IPC(foot+calf), 120 mmHg), on the venous outflow of 20 legs of normals and 25 legs of claudicants.

RESULTS

the peak and mean velocities, volume flow and pulsatility index in the superficial femoral and popliteal veins of both groups increased significantly with all IPC modes (p<0.001). IPC(foot+calf)produced the highest enhancement followed by IPC(calf)(p<0.01), which was more effective (p<0.001) than either IPC(foot/180 mmHg)or IPC(foot/120 mmHg). The venous volume expelled with IPC(calf)and IPC(foot+calf)was 2-2.5 and 3-3.5 times that with IPC(foot/180 mmHg)respectively. Velocity enhancement with IPC was similar between groups and the superficial femoral and popliteal veins. IPC(foot/180 mmHg)produced higher (p<0. 01) flow velocities than IPC(foot/120 mmHg)in both groups and veins examined; however, differences were limited.

CONCLUSIONS

all IPC modes proved effective, IPC(foot+calf)generating the highest venous outflow enhancement. Higher venous volumes expelled with IPC(foot+calf)explain its reported superiority on leg inflow over the other modes. Increase of applied pressure from 120 to 180 mmHg with IPC(foot)offered only a small outflow improvement. Venous haemodynamics at rest and with IPC in claudicants do not differ significantly from those in healthy subjects.

Authors+Show Affiliations

Irvine Laboratory for Cardiovascular Investigation and Research, Academic Vascular Unit, London, Paddington, UK.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

10753688

Citation

Delis, K T., et al. "Enhancing Venous Outflow in the Lower Limb With Intermittent Pneumatic Compression. a Comparative Haemodynamic Analysis On the Effect of Foot Vs. Calf Vs. Foot and Calf Compression." European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery, vol. 19, no. 3, 2000, pp. 250-60.
Delis KT, Slimani G, Hafez HM, et al. Enhancing venous outflow in the lower limb with intermittent pneumatic compression. A comparative haemodynamic analysis on the effect of foot vs. calf vs. foot and calf compression. Eur J Vasc Endovasc Surg. 2000;19(3):250-60.
Delis, K. T., Slimani, G., Hafez, H. M., & Nicolaides, A. N. (2000). Enhancing venous outflow in the lower limb with intermittent pneumatic compression. A comparative haemodynamic analysis on the effect of foot vs. calf vs. foot and calf compression. European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery, 19(3), 250-60.
Delis KT, et al. Enhancing Venous Outflow in the Lower Limb With Intermittent Pneumatic Compression. a Comparative Haemodynamic Analysis On the Effect of Foot Vs. Calf Vs. Foot and Calf Compression. Eur J Vasc Endovasc Surg. 2000;19(3):250-60. PubMed PMID: 10753688.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Enhancing venous outflow in the lower limb with intermittent pneumatic compression. A comparative haemodynamic analysis on the effect of foot vs. calf vs. foot and calf compression. AU - Delis,K T, AU - Slimani,G, AU - Hafez,H M, AU - Nicolaides,A N, PY - 2001/2/7/pubmed PY - 2001/2/7/medline PY - 2001/2/7/entrez SP - 250 EP - 60 JF - European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery JO - Eur J Vasc Endovasc Surg VL - 19 IS - 3 N2 - OBJECTIVES: intermittent pneumatic compression (IPC), an established method of deep-vein thrombosis prophylaxis, is also an effective means of leg inflow enhancement, improving the walking capacity and ankle pressure of claudicants, long-term. This study, using duplex ultrasonography, compares the haemodynamic effect of IPC of the (a) foot (at 120 mmHg [IPC(foot/120 mmHg)], and 180 mmHg [IPC(foot/180 mmHg)]), (b) calf (IPC(calf), 120 mmHg) and (c) both simultaneously (IPC(foot+calf), 120 mmHg), on the venous outflow of 20 legs of normals and 25 legs of claudicants. RESULTS: the peak and mean velocities, volume flow and pulsatility index in the superficial femoral and popliteal veins of both groups increased significantly with all IPC modes (p<0.001). IPC(foot+calf)produced the highest enhancement followed by IPC(calf)(p<0.01), which was more effective (p<0.001) than either IPC(foot/180 mmHg)or IPC(foot/120 mmHg). The venous volume expelled with IPC(calf)and IPC(foot+calf)was 2-2.5 and 3-3.5 times that with IPC(foot/180 mmHg)respectively. Velocity enhancement with IPC was similar between groups and the superficial femoral and popliteal veins. IPC(foot/180 mmHg)produced higher (p<0. 01) flow velocities than IPC(foot/120 mmHg)in both groups and veins examined; however, differences were limited. CONCLUSIONS: all IPC modes proved effective, IPC(foot+calf)generating the highest venous outflow enhancement. Higher venous volumes expelled with IPC(foot+calf)explain its reported superiority on leg inflow over the other modes. Increase of applied pressure from 120 to 180 mmHg with IPC(foot)offered only a small outflow improvement. Venous haemodynamics at rest and with IPC in claudicants do not differ significantly from those in healthy subjects. SN - 1078-5884 UR - https://www.unboundmedicine.com/medline/citation/10753688/Enhancing_venous_outflow_in_the_lower_limb_with_intermittent_pneumatic_compression__A_comparative_haemodynamic_analysis_on_the_effect_of_foot_vs__calf_vs__foot_and_calf_compression_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1078588499910481 DB - PRIME DP - Unbound Medicine ER -