Jessie Shea,Elisabeth Smith,Megan Lyons,Monty Fricker,Ryan Laloo,David C Bosanquet
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引用次数: 0
Abstract
OBJECTIVE
Intra-operative blood loss is a significant complication of major lower limb amputation (MLLA). This systematic review and meta-analysis assessed the effect of tourniquet use on patients undergoing amputation.
DATA SOURCES
Embase, MEDLINE, and Cochrane databases were searched from inception to April 2024.
REVIEW METHODS
Inclusion criteria were any study design assessing MLLA with and without tourniquet use. Primary outcomes were peri-operative blood loss and transfusion requirements. Secondary outcomes were operative duration, surgical site infection, stump revision, and death. Articles were screened and data extracted independently by two reviewers, then pooled using random effects meta-analysis, and presented with their GRADE certainty. Risk of bias was assessed using ROBINS-I and Cochrane RoB 2 tools.
RESULTS
Seven studies (one randomised controlled trial [RCT] and six cohort studies) were included, totalling 1 018 limbs (412 tourniquet, 606 non-tourniquet). Intra-operative blood loss was lower with tourniquet use (mean difference [MD] -192.09 mL; 95% confidence interval [CI] -291.67 - -92.52; p < .001); however, there was no statistically significant difference in total blood loss measured over the first three to four post-operative days (MD -254.66 mL; 95% CI -568.12 - 58.80; p = .11). Post-operative haemoglobin decrease was lower for tourniquet patients (MD -0.55 g/dL; 95% CI -0.80 - -0.31; p < .001). The odds ratio (OR) for requiring blood transfusion was 0.65 (95% CI 0.38 - 1.11; p = .11) for tourniquet vs. non-tourniquet patients, with no statistically significant difference in number of units transfused per patient (MD -0.35, 95% CI -0.72 - 0.03; p = .070). Operation length was shorter with tourniquet use (MD -8.69 minutes, 95% CI -15.95 - -1.42; p = .020). There was no statistically significant difference in rates of surgical site infection (OR 1.07, 95% CI 0.60 - 1.90; p = .82), stump revision (OR 0.71, 95% CI 0.43 - 1.16; p = .17), or death (OR 0.80, 95% CI 0.49 - 1.30; p = .36). GRADE certainty was low or very low for all outcomes.
CONCLUSION
Tourniquet use may be associated with reduced post-operative haemoglobin decrease and operative duration, without negative consequences on stump infection, revision, and mortality. However, most data are observational. Further RCTs are needed to generate higher quality evidence.
期刊介绍:
The European Journal of Vascular and Endovascular Surgery is aimed primarily at vascular surgeons dealing with patients with arterial, venous and lymphatic diseases. Contributions are included on the diagnosis, investigation and management of these vascular disorders. Papers that consider the technical aspects of vascular surgery are encouraged, and the journal includes invited state-of-the-art articles.
Reflecting the increasing importance of endovascular techniques in the management of vascular diseases and the value of closer collaboration between the vascular surgeon and the vascular radiologist, the journal has now extended its scope to encompass the growing number of contributions from this exciting field. Articles describing endovascular method and their critical evaluation are included, as well as reports on the emerging technology associated with this field.