| Literature DB >> 28177328 |
R Mahieu1,2, G Colletti3, P Bonomo4, G Parrinello1, A Iavarone1, G Dolivet5, L Livi4, A Deganello1.
Abstract
Nowadays, the transposition of microvascular free flaps is the most popular method for management of head and neck defects. However, not all patients are suitable candidates for free flap reconstruction. In addition, not every defect requires a free flap transfer to achieve good functional results. The aim of this study was to assess whether pedicled flap reconstruction of head and neck defects is inferior to microvascular free flap reconstruction in terms of complications, functionality and prognosis. The records of consecutive patients who underwent free flap or pedicled flap reconstruction after head and neck cancer ablation from 2006 to 2015, from a single surgeon, in the AOUC Hospital, Florence Italy were analysed. A total of 93 patients, the majority with oral cancer (n = 59), were included, of which 64 were pedicled flap reconstructions (69%). The results showed no significant differences in terms of functional outcome, flap necrosis and complications in each type of reconstruction. Multivariate regression analysis of flap necrosis and functional impairments showed no associated factors. Multivariate regression analysis of complicated flap healing showed that only comorbidities remained an explaining factor (p = 0.019). Survival analysis and proportional hazard regression analysis regarding cancer relapse or distant metastasis, showed no significant differences in prognosis of patients concerning both types of reconstruction. In this retrospective, non-randomised study cohort, pedicled flaps were not significantly inferior to free flaps for reconstruction of head and neck defects, considering functionality, complications and prognosis. © Copyright by Società Italiana di Otorinolaringologia e Chirurgia Cervico-Facciale, Rome, Italy.Entities:
Keywords: Free flap; Head and neck cancer; Head and neck reconstruction; Oral cavity reconstruction; Pedicled flap
Mesh:
Year: 2016 PMID: 28177328 PMCID: PMC5317124 DOI: 10.14639/0392-100X-1153
Source DB: PubMed Journal: Acta Otorhinolaryngol Ital ISSN: 0392-100X Impact factor: 2.124
Cohort characteristics.
| N = 93 | Pedicled Flap | Free Flap | P-value |
|---|---|---|---|
| Age: | 64.5 (SD ± 9.7) | 58.2 (SD ± 10.4) | |
| Gender: | 0.874 | ||
| Male (n = 62) | 43 (67%) | 19 (65%) | |
| Female (n = 31) | 21 (33%) | 10 (35%) | |
| Anatomical site: | 0.073 | ||
| Oral Cavity (n = 59) | 39 (61%) | 20 (69%) | |
| Oropharynx (n = 17) | 9 (14%) | 8 (28%) | |
| Larynx (n = 6) | 6 (9%) | 0 (0%) | |
| Hypopharynx (n = 4) | 4 (6%) | 0 (0%) | |
| Oesophagus (n = 3) | 3 (5%) | 0 (0%) | |
| Other (n = 4) | 4 (6%) | 1 (3%) | |
| Previous treatment: | |||
| None (n = 52) | 29 (45%) | 23 (79%) | |
| Previous RT (n = 3) | 1 (2%) | 2 (7%) | |
| Previous surgery | 11 (17%) | 4 (14%) | |
| Previous surgery + RT | 15 (23%) | 0 (0%) | |
| Previous CT+RT (n = 3) | 3 (5%) | 0 (0%) | |
| Previous surgery and | 5 (8%) | 0 (0%) | |
| Vessel Depleted Neck: | |||
| None (n = 69) | 41 (64%) | 28 (97%) | |
| Unilateral (n = 12) | 11 (17%) | 1 (3%) | |
| Bilateral (n = 12) | 12 (19%) | 0 (0%) | |
| Comorbidity: | |||
| None (n = 55) | 28 (44%) | 27 (94%) | |
| Diabetes (n = 2) | 2 (3%) | 0 (0%) | |
| Neurological disease | 0 (0%) | 1 (3%) | |
| Severe cardiovascular | 18 (28%) | 1 (3%) | |
| Multiple (n = 16) | 16 (25%) | 0 (0%) |
Student's t-test
χ2-test. Bold script indicates significant values.
Tumour-defect characteristics.
| N = 93 | Pedicled Flap | Free Flap | P-value |
|---|---|---|---|
| Tumour Status: | |||
| First primary (n = | 30 (47%) | 24 (83%) | |
| Recurrence (n = 27) | 23 (36%) | 4 (14%) | |
| Second primary (n | 11 (17%) | 1 (3%) | |
| Tissue Defect: | |||
| Soft Tissue (n = 56) | 39 (61%) | 17 (59%) | |
| Bony + Soft Tissue | 8 (12%) | 9 (31%) | |
| Soft Tissue + | 17 (27%) | 3 (10%) | |
| pT-stage (grouping): | 0.262 | ||
| T1-T2 (n = 21) | 15 (23%) | 6 (21%) | |
| T3 (n = 19) | 10 (16%) | 9 (31%) | |
| T4 (n = 26) | 16 (25%) | 10 (35%) | |
| rT1-rT2 (n = 8) | 7 (11%) | 1 (3%) | |
| rT3 (n = 5) | 4 (6%) | 1 (3%) | |
| rT4 (n = 14) | 12 (19%) | 2 (7%) | |
| pN-stage (grouping): | 0.075 | ||
| N0 (n = 28) | 20 (31%) | 8 (28%) | |
| N+ (n = 38) | 21 (33%) | 17 (58%) | |
| rN0 (n = 17) | 15 (23%) | 2 (7%) | |
| rN+ (n = 10) | 8 (13%) | 2 (7%) | |
| Adjuvant therapy: | < 0.070
| ||
| None (n = 35) | 29 (45%) | 6 (21%) | |
| RT (n = 32) | 20 (31%) | 12 (41%) | |
| CT+RT (n = 26) | 15 (24%) | 11 (38%) | |
| Present (n = 31) | 19 (37%) | 12 (41%) |
Student's t-test
χ2-test. Bold script indicates significant values.
Functional assessment outcome in different types of reconstruction per anatomical site.
| Functional Impairment | None (%) | Swallowing Disorder | Speech Disorder (%) | Both (%) (n = 14) | P value |
|---|---|---|---|---|---|
| Oral Cavity (n = 57) | 0.614 | ||||
| Pedicled Flap (n = 38) | 18 (48%) | 11 (29%) | 2 (5%) | 7 (18%) | |
| Free Flap (n = 19) | 11 (58%) | 6 (31%) | 0 (0%) | 2 (11%) | |
| Oropharynx (n = 14) | 0.626 | ||||
| Pedicled Flap (n = 6) | 2 (33%) | 1 (17%) | 1 (17%) | 2 (33%) | |
| Free Flap (n = 8) | 4 (50%) | 2 (25%) | 0 (0%) | 2 (25%) | |
| Other (n = 5) | 0.800 | ||||
| Pedicled Flap (n = 4) | 3 (75%) | 0 (0%) | 0 (0%) | 1 (25%) | |
| Free Flap (n = 1) | 1 (100%) | 0 (0%) | 0 (0%) | 0 (0%) |
χ2-test
Fisher's exact test.
Healing outcomes.
| Flap Healing (n = 93) | Healing uneventful (%) | Minor complications (%) | Further surgery required | P value |
|---|---|---|---|---|
| Pedicled Flap | 56 (87%) | 3 (5%) | 5 (8%) | 0.902 |
| Free Flap | 25 (86%) | 2 (7%) | 2 (7%) | |
| Flap Necrosis (n = 93) | None (%) (n = 85) | Partial Necrosis (%) (n = 7) | Total Necrosis (%) (n = 1) | |
| Pedicled Flap | 59 (92%) | 4 (6%) | 1 (2%) | 0.634 |
| Free Flap | 26 (90%) | 3 (10%) | 0 (0%) | |
| Admission length (n=93) | Mean | Standard deviation | Standard error mean | |
| Pedicled Flap (n = 64) | 17.6 | ± 6.8 | 0.9 | |
| Free Flap (n = 29) | 21.1 | ± 7.8 | 1.5 |
χ2-test
Students t-test. Bold script indicates significant values
Estimation of probability of complicated flap healing.
| Variable | Coefficient | Standard error | P value | OR | 95% CI | |
|---|---|---|---|---|---|---|
| Age | 0.00 | 0.37 | 0.998 | 1.000 | 0.930 | 1.076 |
| Type Flap | -1.440 | 1.132 | 0.203 | 0.237 | 0.026 | 2.179 |
| Tumour status | -2.018 | 1.765 | 0.253 | 0.133 | 0.004 | 4.230 |
| Anatomical Site | 0.602 | 0.482 | 0.211 | 1.826 | 0.710 | 4.692 |
| Previous treatment | 0.275 | 0.522 | 0.598 | 1.317 | 0.473 | 3.663 |
| Tissue Defect | -0.130 | 0.497 | 0.793 | 0.878 | 0.331 | 2.326 |
| Comorbidity | 0.702 | 0.300 | 2.018 | 1.121 | 3.634 |
OR odds ratio.
CI confidence interval. Bold script indicates significant values.
Fig. 1.Kaplan Meier curves of overall survival in patients with a follow-up time over 36 months, but less than 97 months, who underwent either a pedicled flap (n = 25, bold line) or a free flap (n = 13, dotted line).
Fig. 2.Cumulative hazard curves regarding the development of recurrences, distant metastasis or second primary cancers in patients who underwent either pedicled flap (n= 64, bold line) or free flap (n = 29, dotted line) reconstruction.