Radical endoscopic transnasal surgery associated with medical treatment with liposomal amphotericine B may increase the local control of Rhino-Sinusal Mucormycosis and the survival rate. The objective of this study is to evaluate the local control rate and survival rate at 3 months after radical endoscopic transnasal surgery extended towards the skull base in association with antifungal therapy and early surgical reevaluation of the extent of the disease.
Introduction : Treatment of Rhino-Sinusal Mucormycosis remains a challenge because of the severity of the disease with high mortality rates. Mainly involving diabetic and immunodeficient patients, first clinical presentation is a common infection of the sinuses which can extend towards deep spaces of the face, orbits, the skull base and the brain. The mortality rates range from 20 to 50%, up to 80% in case of cerebral extension. through Transnasal Endoscopic Surgery extended to the Skull Base. Hypothesis : We hypothesize that infected tissues are devascularized and because of that antifungal therapies can hardly reach areas of infected tissues. Radical endoscopic transnasal surgery associated with medical treatment with liposomal amphotericine B may increase the local control of the disease and the survival rate. Clinical evaluation of the extent of the disease within the first 7 days following initial surgery may represent a prognosis factor. Methods : First national mutlicentric and multidisciplinary cohort on Rhino-Sinusal Mucormycosis Radiological staging for evaluation of the extent of the disease using CT scan, MRI and PET Scan at initial stage before surgery Radical surgery and/or endoscopic transnasal surgery extended towards the skull base associated with liposomal amphotericine B medical treatment. At day 7 new radiological evaluation and second surgical look to adapt surgical resection of infected tissues, perform biopsies to search for mycormycosis, biofilms and dosage of the concentration of liposomal amphotericin B inside tissues. New radiological and surgical looks in case of absence of local control obtained on the second look and further. Study of the response rate by an endoscopic \& scan follow-up (with biopsies for anatomopathological et mycological studies) at 1 month, 3 months, 6 months \& one year. PET scan initially \& at 3 months. Number of subjects included : Phase II type trial (exclusion of a zero hypothesis of survival rate \<50% ), N= 23 patients Total length of the study 4 years Inclusion period time : 3 years Time of participation per patient : 1 year Number of center and/or participating departments: 24 Mean number of patients included per year and per center : 0 to 3 patients
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
11
Transnasal endoscopic surgery extended to the skull base
Hôpital Lariboisière
Paris, France
Local control rate and survival rate
To evaluate the local control rate and survival rate at 3 months after radical endoscopic transnasal surgery extended towards the skull base in association with antifungal therapy and early surgical reevaluation of the extent of the disease.
Time frame: 3 months
Survival rates
Survival rates at 6 and 12 months
Time frame: 6 and 12 months
Study of the response rate
Study of the response rate at 1 and 3 months according to Segar criteria (Segal, Clin Infect Dis) using clinical, mycological and radiological evaluation.
Time frame: 1 and 3 months
Study of the local control
Study of the local control obtained at day 7+/-5 days and survival rate and response rate at 3 months.
Time frame: 3 months
Study of the association between local control and survival rate and response rate
Study of the association between local control obtained at 1 month and survival rate and response rate at 3 months.
Time frame: 3 months
Evaluation of the interest of CT PET scan
Evaluation of the interest of CT PET scan in studying clinical response at 3 months.
Time frame: 3 months
Radiological staging
Radiological staging: comparison of the initial extent of the mucormycosis at day 0 by CT scan and MRI and survival rate at 3 months and local control obtained at day 7.
Time frame: 3 months
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Dosage of the amphotericin B concentration inside tissues
Dosage of the amphotericin B concentration inside tissues (infeusingcted and at the border of infected tissues) as obtained with biopsies at day 7.
Time frame: Day 7
Search for biofilms using confocal microscopy
Search for biofilms using confocal microscopy on infected tissues biopsies
Time frame: Day 0 and Day 7
Staging of sequellae
Staging of sequellae using quality of life questionnaires
Time frame: 3 months, 6 months and 1 year
Bank of mucormycosis tissues
Bank of mucormycosis tissues at -80°C
Time frame: Day 0, Day 7, Day 14, D21 and Day 28