Suction-assisted lipectomy fails to improve cardiovascular metabolic markers of disease: a meta-analysis.
Level 3 - non-randomized controlled study
Systematic review and meta-analysis of non-randomized before-and-after studies
PubMed 23899478 · doi:10.1016/j.bjps.2013.07.001
What was done
A systematic review and meta-analysis of MEDLINE was performed to determine whether suction-assisted lipectomy (SAL) improves early cardiovascular and metabolic risk markers. Included studies evaluated patient characteristics, fat volume removed, and pre- versus post-operative outcomes. Data were synthesized using pooled curves, risk ratios, and standardized mean differences.
What was found
Fifteen studies encompassing 357 patients were analyzed, with a median follow-up of 3 months (IQR 1–6, range 0.5–10.5) and a mean extracted fat volume of 6,138 ± 4,735 ml (range 2,063–16,300 ml). After adjusting for time and BMI, the volume of aspirated fat was significantly associated only with reductions in leptin and fasting insulin. No significant associations were found for high-sensitivity C-reactive protein (hsCRP), interleukin-6 (IL-6), adiponectin, resistin, tumor necrosis factor-α (TNF-α), HOMA index, total cholesterol, HDL, LDL, triglycerides, free fatty acids, or systolic blood pressure.
Why it matters
These findings show that large-volume removal of subcutaneous adipose tissue does not confer the broad cardiovascular and metabolic improvements typically seen with lifestyle- or bariatric-induced visceral fat loss.
Limits
The total sample size across all 15 studies was small (357 patients), and the primary studies relied on uncontrolled before-and-after designs. Follow-up was short (median 3 months), limiting insight into long-term cardiovascular outcomes.
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