A retrospective cost analysis of angioplasty compared to bypass surgery for lower limb arterial disease in an Australian tertiary health service

Natalie Ly Ngu, James Lisik, Dinesh Varma, Gerard S. Goh

Research output: Contribution to journalArticleResearchpeer-review

1 Citation (Scopus)

Abstract

Introduction: Percutaneous transluminal angioplasty (PTA) and surgical bypass (BYP) are treatment options for symptomatic peripheral arterial disease (PAD). PTA and BYP have different clinical outcomes and cost implications. This paper aims to compare hospital-related costs of PTA and BYP for PAD of the lower limbs in an Australian health service. Methods: A retrospective cost analysis using clinical and financial data from an urban, tertiary hospital was performed. Patient cohorts were matched to existing published studies and 3-year findings were calculated. Outcomes measured were mean initial admission cost; mean bed stay; mean complication rate; mean cost of re-intervention at 12 months and extrapolated mean cost at 3 years. Results: The mean total admission costs for PTA compared to BYP were $8758 vs. $27,849 (P < 0.001). Patients undergoing BYP were admitted for 10.25 vs. 3.77 nights (P < 0.001). The complication rate was greater in the BYP group for infection only. Re-intervention was required by 13% of the PTA group and 16% of the BYP group, at a mean cost of $11,798 and $14,728, respectively (P = 0.453). The extrapolated total mean cost at 3 years was higher in the BYP group for patients with both intermittent claudication ($26,764 vs. $11,402) and critical limb ischaemia ($27,719 vs. $12,655). Conclusions: In this cohort, PTA is a favourable alternative to BYP for PAD of the lower limbs as it is less costly, does not result in a greater re-intervention rate at 1 year and has been previously demonstrated to have comparable clinical outcomes. Given the limitations of this retrospective analysis, a prospective cost-effectiveness analysis is recommended.

Original languageEnglish
Pages (from-to)337-344
Number of pages8
JournalJournal of Medical Imaging and Radiation Oncology
Volume62
Issue number3
DOIs
Publication statusPublished - Jun 2018

Keywords

  • Angioplasty, balloon
  • Costs and cost analysis
  • Peripheral arterial disease
  • Radiology, interventional
  • Vascular grafting

Cite this

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title = "A retrospective cost analysis of angioplasty compared to bypass surgery for lower limb arterial disease in an Australian tertiary health service",
abstract = "Introduction: Percutaneous transluminal angioplasty (PTA) and surgical bypass (BYP) are treatment options for symptomatic peripheral arterial disease (PAD). PTA and BYP have different clinical outcomes and cost implications. This paper aims to compare hospital-related costs of PTA and BYP for PAD of the lower limbs in an Australian health service. Methods: A retrospective cost analysis using clinical and financial data from an urban, tertiary hospital was performed. Patient cohorts were matched to existing published studies and 3-year findings were calculated. Outcomes measured were mean initial admission cost; mean bed stay; mean complication rate; mean cost of re-intervention at 12 months and extrapolated mean cost at 3 years. Results: The mean total admission costs for PTA compared to BYP were $8758 vs. $27,849 (P < 0.001). Patients undergoing BYP were admitted for 10.25 vs. 3.77 nights (P < 0.001). The complication rate was greater in the BYP group for infection only. Re-intervention was required by 13{\%} of the PTA group and 16{\%} of the BYP group, at a mean cost of $11,798 and $14,728, respectively (P = 0.453). The extrapolated total mean cost at 3 years was higher in the BYP group for patients with both intermittent claudication ($26,764 vs. $11,402) and critical limb ischaemia ($27,719 vs. $12,655). Conclusions: In this cohort, PTA is a favourable alternative to BYP for PAD of the lower limbs as it is less costly, does not result in a greater re-intervention rate at 1 year and has been previously demonstrated to have comparable clinical outcomes. Given the limitations of this retrospective analysis, a prospective cost-effectiveness analysis is recommended.",
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A retrospective cost analysis of angioplasty compared to bypass surgery for lower limb arterial disease in an Australian tertiary health service. / Ngu, Natalie Ly; Lisik, James; Varma, Dinesh; Goh, Gerard S.

In: Journal of Medical Imaging and Radiation Oncology, Vol. 62, No. 3, 06.2018, p. 337-344.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - A retrospective cost analysis of angioplasty compared to bypass surgery for lower limb arterial disease in an Australian tertiary health service

AU - Ngu, Natalie Ly

AU - Lisik, James

AU - Varma, Dinesh

AU - Goh, Gerard S.

PY - 2018/6

Y1 - 2018/6

N2 - Introduction: Percutaneous transluminal angioplasty (PTA) and surgical bypass (BYP) are treatment options for symptomatic peripheral arterial disease (PAD). PTA and BYP have different clinical outcomes and cost implications. This paper aims to compare hospital-related costs of PTA and BYP for PAD of the lower limbs in an Australian health service. Methods: A retrospective cost analysis using clinical and financial data from an urban, tertiary hospital was performed. Patient cohorts were matched to existing published studies and 3-year findings were calculated. Outcomes measured were mean initial admission cost; mean bed stay; mean complication rate; mean cost of re-intervention at 12 months and extrapolated mean cost at 3 years. Results: The mean total admission costs for PTA compared to BYP were $8758 vs. $27,849 (P < 0.001). Patients undergoing BYP were admitted for 10.25 vs. 3.77 nights (P < 0.001). The complication rate was greater in the BYP group for infection only. Re-intervention was required by 13% of the PTA group and 16% of the BYP group, at a mean cost of $11,798 and $14,728, respectively (P = 0.453). The extrapolated total mean cost at 3 years was higher in the BYP group for patients with both intermittent claudication ($26,764 vs. $11,402) and critical limb ischaemia ($27,719 vs. $12,655). Conclusions: In this cohort, PTA is a favourable alternative to BYP for PAD of the lower limbs as it is less costly, does not result in a greater re-intervention rate at 1 year and has been previously demonstrated to have comparable clinical outcomes. Given the limitations of this retrospective analysis, a prospective cost-effectiveness analysis is recommended.

AB - Introduction: Percutaneous transluminal angioplasty (PTA) and surgical bypass (BYP) are treatment options for symptomatic peripheral arterial disease (PAD). PTA and BYP have different clinical outcomes and cost implications. This paper aims to compare hospital-related costs of PTA and BYP for PAD of the lower limbs in an Australian health service. Methods: A retrospective cost analysis using clinical and financial data from an urban, tertiary hospital was performed. Patient cohorts were matched to existing published studies and 3-year findings were calculated. Outcomes measured were mean initial admission cost; mean bed stay; mean complication rate; mean cost of re-intervention at 12 months and extrapolated mean cost at 3 years. Results: The mean total admission costs for PTA compared to BYP were $8758 vs. $27,849 (P < 0.001). Patients undergoing BYP were admitted for 10.25 vs. 3.77 nights (P < 0.001). The complication rate was greater in the BYP group for infection only. Re-intervention was required by 13% of the PTA group and 16% of the BYP group, at a mean cost of $11,798 and $14,728, respectively (P = 0.453). The extrapolated total mean cost at 3 years was higher in the BYP group for patients with both intermittent claudication ($26,764 vs. $11,402) and critical limb ischaemia ($27,719 vs. $12,655). Conclusions: In this cohort, PTA is a favourable alternative to BYP for PAD of the lower limbs as it is less costly, does not result in a greater re-intervention rate at 1 year and has been previously demonstrated to have comparable clinical outcomes. Given the limitations of this retrospective analysis, a prospective cost-effectiveness analysis is recommended.

KW - Angioplasty, balloon

KW - Costs and cost analysis

KW - Peripheral arterial disease

KW - Radiology, interventional

KW - Vascular grafting

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U2 - 10.1111/1754-9485.12696

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M3 - Article

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EP - 344

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JF - Journal of Medical Imaging and Radiation Oncology

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