Minimally Invasive Hepatic Resection Option for Access to the Waiting List of a Single Regional Transplant Center in Southern Italy: Entry and Dropout Flows’ Analysis
Abstract
1. Introduction
2. Materials and Methods
2.1. Study Design and Population
2.2. Inclusion and Exclusion Criteria
Surgical Eligibility Criteria
2.3. Study Groups
- Group A—Resectable but non-transplantable patients:
- Group B—Resectable and transplantable patients:
Microwave Thermal Ablation Cohort
- Bridge/Downstaging MWTA (Group C—transplantable–thermoablated):
- Non-transplantable MWTA (Group D—thermoablated only):
2.4. Data Collection
2.5. Postoperative Management and Follow-Up
2.6. Statistical Analysis
3. Results
3.1. HCC Patients
3.2. Recurrence Patterns and Predictors
3.3. Trends of LLR and Dropout Rate
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Abbreviations
| AFP | Alpha-fetoprotein |
| ESLD | End-stage liver disease |
| HCC | Hepatocellular carcinoma |
| HOPE | Hypothermic oxygenated perfusion |
| LLR | Laparoscopic liver resection |
| LT | Liver transplantation |
| MWTA | Microwave thermal ablation |
References
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| Surgically Treatable HCC Cohort (316, 35.7%) | Transplant Cohort (568, 64.3%) | p Value | ||||
|---|---|---|---|---|---|---|
| Group A | Group B | Group C | Group D | |||
| Variable | Resectable (118, 13.4%) | Transplantable–Resectable (147, 16.6%) | MWTA Option (21, 2.4%) | Transplantable–MWTA Option (30, 3.4%) | ||
| Age (years), median [IQR] | 73.3 [68–78] | 62.1 [57–67] | 74.7 [72–77] | 60.9 [57–66] | 54.7 [49–61] | <0.001 |
| BMI (kg/m2), median [IQR] | 27.1 [25.0–29.2] | 28.0 [25.3–31.1] | 26.4 [23.9–29.0] | 28.8 [25.6–31.3] | 26.5 [23.1–29.5] | 0.022 |
| Sodium (mmol/L), median [IQR] | 139.4 [138–141] | 139.9 [138–142] | 138.8 [137–141] | 139.6 [138–142] | 138.1 [136–141] | <0.001 |
| Bilirubin (mg/dL), median [IQR] | 0.57 [0.35–0.84] | 0.68 [0.36–1.94] | 0.84 [0.64–1.57] | 1.05 [0.73–5.12] | 2.08 [0.38–5.12] | <0.001 |
| Creatinine (mg/dL), median [IQR] | 0.94 [0.76–1.30] | 0.94 [0.55–1.94] | 0.92 [0.33–1.90] | 0.97 [0.53–3.16] | 1.01 [0.33–11.0] | 0.014 |
| INR, median [IQR] | 1.07 [1.01–1.13] | 1.07 [1.00–1.12] | 1.07 [1.00–1.11] | 1.15 [1.04–1.20] | 1.43 [1.16–1.75] | <0.001 |
| Platelet count (×109/L), median [IQR] | 189.5 [140–239] | 176.1 [130–212] | 169.5 [98–247] | 115.3 [80–152] | 106.3 [67–134] | <0.001 |
| Alpha-fetoprotein (ng/mL), median [IQR] | 5.8 [0.6–19.3] | 12.9 [0.9–76.0] | 4.0 [1.0–2999.0] | 8.5 [1.0–6800.0] | 5.6 [0.8–4568.0] | <0.001 |
| Sex (male), n (%) | 75 (63.6) | 118 (80.3) | 16 (76.2) | 23 (76.7) | 421 (74.1) | 0.048 |
| Child–Pugh A | 99 (83.9) | 112 (76.2) | 11 (52.4) | 22 (73.3) | 136 (23.9) | <0.001 |
| Child–Pugh B | 1 (0.8) | 3 (2.0) | 3 (14.3) | 2 (6.7) | 193 (34.0) | |
| Child–Pugh C | 18 (15.3) | 32 (21.8) | 7 (33.3) | 6 (20.0) | 239 (42.1) | |
| HCV-related | 0 (0.0) | 1 (0.7) | 0 (0.0) | 1 (3.3) | 23 (4.1) | |
| HBV-related | 10 (8.5) | 15 (10.2) | 1 (4.8) | 2 (6.7) | 80 (14.1) | |
| Alcohol-related | 11 (9.3) | 6 (4.1) | 0 (0.0) | 3 (10.0) | 61 (10.8) | |
| NASH/Metabolic | 0 (0.0) | 1 (0.7) | 0 (0.0) | 1 (3.3) | 15 (2.6) | |
| Autoimmune | 6 (5.1) | 17 (11.6) | 3 (14.3) | 3 (10.0) | 47 (8.3) | |
| Cholestatic | 18 (15.3) | 20 (13.6) | 3 (14.3) | 8 (26.7) | 84 (14.8) | |
| Other/Rare | 61 (51.7) | 66 (44.9) | 13 (61.9) | 9 (30.0) | 217 (38.2) | 0.011 |
| Variable | Resectable—Group A (n = 118, 20.3%) | Transplantable–Resectable—Group B (n = 147, 25.3%) | MWTA—Group C (n = 21, 3.6%) | Transplantable–MWTA—Group D (n = 30, 5.2%) |
|---|---|---|---|---|
| Number of lesion, median [IQR] | 1 [1–1] | 1 [1–2] | 1 [1–1] | 1 [1–1] |
| Maximal diameter (mm), median [IQR] | 34 [20–54] | 12 [2.7–30] | 22 [8.5–31] | 15.5 [3.1–25] |
| Child–Pugh A, n (%) | 99 (83.9) | 112 (76.2) | 11 (52.4) | 22 (73.3) |
| Child–Pugh B, n (%) | 1 (0.8) | 3 (2.0) | 3 (14.3) | 2 (6.7) |
| Child–Pugh C, n (%) | 18 (15.3) | 32 (21.8) | 7 (33.3) | 6 (20.0) |
| Milan in, n (%) | 51 (53.7) | 113 (77.4) | 11 (84.6) | 28 (96.6) |
| Milano out, n (%) | 30 (31.6) | 24 (16.4) | 1 (7.7) | 1 (3.4) |
| No ESLD, n (%) | 14 (14.7) | 10 (6.2) | 1 (7.7) | 1 (0) |
| Surgical Approach | ||||
| Open | 55 (46.6) | 47 (32.0) | – | – |
| LLR | 36 (30.5) | 80 (54.4) | – | – |
| Hand-assisted option | 27 (22.9) | 20 (13.6) | – | – |
| Variable | Odds Ratio (95% CI) | p-Value |
|---|---|---|
| Treatment group | ||
| LT after LR | 1.25 (0.53–2.93) | 0.61 |
| LT after MWTA | 4.85 (1.34–17.64) | 0.016 |
| LT | 0.12 (0.05–0.30) | <0.001 |
| Child–Pugh class (B–C vs. A) | 0.93 (0.63–1.38) | 0.72 |
| Milan criteria (out vs. in) | 1.05 (0.82–1.34) | 0.71 |
| Alpha-fetoprotein (ng/mL) | 1.00 (1.00–1.00) | 0.39 |
| Event of Interest | Competing Event | Comparison (HCC vs. Non-HCC) | HR (95% CI) | p-Value | Interpretation |
|---|---|---|---|---|---|
| Failure (dropout, death, non-eligibility, refusal) | Goal (LT, LR, MWTA) | HCC vs. non-HCC | 0.27 (0.18–0.42) | <0.001 | HCC patients showed a 73% lower subdistribution hazard of dropout/death compared to non-HCC. |
| Goal (LT, LR, MWTA) | Failure (dropout, death, non-eligibility, refusal) | HCC vs. non-HCC | 1.65 (1.40–1.94) | <0.001 | HCC patients had a 65% higher subdistribution hazard of achieving transplantation or curative treatment compared to non-HCC. |
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Vella, R.; Pagano, D.; di Francesco, F.; Petri, S.L.; Bonsignore, P.; Lorenzo, N.D.; Calamia, S.; Tropea, A.; Vitale, I.; Vella, I.; et al. Minimally Invasive Hepatic Resection Option for Access to the Waiting List of a Single Regional Transplant Center in Southern Italy: Entry and Dropout Flows’ Analysis. J. Clin. Med. 2025, 14, 8871. https://doi.org/10.3390/jcm14248871
Vella R, Pagano D, di Francesco F, Petri SL, Bonsignore P, Lorenzo ND, Calamia S, Tropea A, Vitale I, Vella I, et al. Minimally Invasive Hepatic Resection Option for Access to the Waiting List of a Single Regional Transplant Center in Southern Italy: Entry and Dropout Flows’ Analysis. Journal of Clinical Medicine. 2025; 14(24):8871. https://doi.org/10.3390/jcm14248871
Chicago/Turabian StyleVella, Roberta, Duilio Pagano, Fabrizio di Francesco, Sergio Li Petri, Pasquale Bonsignore, Noemi Di Lorenzo, Sergio Calamia, Alessandro Tropea, Irene Vitale, Ivan Vella, and et al. 2025. "Minimally Invasive Hepatic Resection Option for Access to the Waiting List of a Single Regional Transplant Center in Southern Italy: Entry and Dropout Flows’ Analysis" Journal of Clinical Medicine 14, no. 24: 8871. https://doi.org/10.3390/jcm14248871
APA StyleVella, R., Pagano, D., di Francesco, F., Petri, S. L., Bonsignore, P., Lorenzo, N. D., Calamia, S., Tropea, A., Vitale, I., Vella, I., Accardo, C., Gelsomino, S., Vieni, S., Cammà, C., Ferrandelli, G., & Gruttadauria, S. (2025). Minimally Invasive Hepatic Resection Option for Access to the Waiting List of a Single Regional Transplant Center in Southern Italy: Entry and Dropout Flows’ Analysis. Journal of Clinical Medicine, 14(24), 8871. https://doi.org/10.3390/jcm14248871

