meningiomul frontal prezentare de caz
TRANSCRIPT
MENINGIOMUL FRONTAL prezentare de caz
Stud. TABITA LARISA CAZAC Conf. Dr. LIGIA GABRIELA TATARANU Dr. VASILE CIUBOTARU
PREZENTARE DE CAZ • SEX MASCULIN • VARSTA DE 44 DE ANI • SIMPTOMATOLOGIE:
² CEFALEE MODERATA, GLOBALA, accentuari paroxis/ce ma/nale, neremisiva la an/algice
² HEMIPAREZA STANGA PREDOMINANT BRAHIALA ² 2 CRIZE EPILEPTICE TONICO-‐CLONICE GENERALIZATE
• FARA ANTECEDENTE PATOLOGICE SEMNIFICATIVE
EXAMENUL CLINIC NEUROLOGIC
• SINDROM PIRAMIDAL STANG : ² HEMIPAREZA STANGA, PREDOMINANT
BRAHIALA (GRAD 3/5 brahial si 4/5 crural) ² ROT mai vii pe stanga ² BABINSKI prezent pe stanga
EXAMENUL OFTALNOLOGIC
• EDEM PAPILAR INCIPIENT BILATERAL
INVESTIGATII PARACLINICE
• EXAMENUL IRM CEREBRAL NATIV SI CU CONTRAST GADOLINIUM :
² PROCES EXPANSIV INTRACRANIAN, EXTRANEVRAXIAL LOCALIZAT FRONTAL DREPT, CONVEXITAL, CU ASPECT OMOGEN SI GADOLINOFILIE MARCATA.
² PREZENTA UNOR MULTIPLE FORMATIUNI MICROCHISTICE LOCALIZATE PERITUMORAL.
• IRM – secAune coronara
• IRM T1 naAv – secAune sagitala
IRM T2 naAv – secAune axiala
IRM T1 gadolinium – secAune axiala
IRM T1 gadolinium – secAune sagitala
IRM T1 gadolinium – secAune sagitala
EVALUARE DIAGNOSTICA • SDR USOR HIC
² CEFALEE + EDEM PAPILAR BILATERAL incipient • SDR PIRAMIDAL STANG
² HEMIPAREZA PREDOMINANT BRAHIALA • FACTOR IRITATIV CORTICAL
² CRIZELE EPILEPTICE “GRAND MAL” ⇒ PEIC in sau in vecinatatea ARIEI
MOTORII DE PARTEA DREAPTA • IRM confirma leziunea ⇒ TUMORA CEREBRALA (probabil
MENINGIOM) dezvoltata CONVEXITAL FRONTAL DREAPTA
PLAN DE TRATAMENT
• INDICATIE NEUROCHIRURGICALA • SCOP: ² DIAGNOSTIC ANATOMO-‐PATOLOGIC ² PROGNOSTIC SI PLAN TERAPEUTIC
ULTERIOR ² REZECTIA TOTALA TUMORALA
o REDUCEREA DEFICITULUI MOTOR o CONTROLAREA CRIZELOR EPILEPTICE
PREGATIREA PREOPERATORIE • ANALIZE DE LABORATOR
o HLG, COAGULOGRAMA, BIOCHIMIE NORMALE • EKG : RITM SINUSAL • RX PULMONAR
o FARA MODIFICARI EVOLUTIVE PLEUROPULMONARE • INFORMAREA PACIENTULUI SI CEREREA DE CONSIMTAMANT • TRATAMENT SIMPTOMATIC DEPLETIV CEREBRAL
o Dexametazona o Furosemid o Manitol 20%
• TRATAMENT SIMPTOMATIC ANTICRITIC o Phenhydan
ABORD FRONTAL PARIETAL DREPT
• POZITIONAREA PACIENTULUI -‐ DECUBIT DORSAL ( SUPINE) CU GATUL EXTINS CU 30-‐45 GRADE FATA DE VERTICALA . CAPUL ESTE ROTAT CONTROLATERAL LEZIUNII CU 15-‐20 GRADE FATA DE VERTICALA
• S-‐A REALIZAT O INCIZIE TEGUMENTARA ARCUATA FRONTOPARIETALA DREAPTA
• S-‐A RABATAT VOLETUL CUTANAT
• S-‐A REALIZAT UN VOLET OSOS LIBER FRONTOPARIETAL DREPT, CARE S-‐A RIDICAT FARA INCIDENTE.
• S-‐A INCIZAT DURA MATER ARCUAT, CU PEDICUL MEDIAL.
ABORD FRONTAL PARIETAL DREPT
• S-‐A DESCOPERIT O TUMORA EXTRAAXIALA CENUSIU-‐ROSIATICA, SOLIDA, BINE DELIMITATA, POLINODULARA, FOARTE BINE VASCULARIZATA, CU DIMENSIUNI DE CIRCA 3.5 / 3 /4 CM, INSERATA PE DURA MATER CONVEXITALA.
• S-‐A REALIZAT ABLATIA TUMORII. • DE NOTAT INVAZIA IN CORTEXUL ADIACENT
• S-‐A EFECTUAT HEMOSTAZA, SUTURA ETANSA SI SUSPENDAREA DUREI MATER.
• S-‐A REPUS SI S-‐A FIXAT VOLETUL OSOS. S-‐A EFECTUAT SUTURA IN PLANURI SI S-‐A REALIZAT PANSAMENTUL PLAGII POSTOPERATORII.
TRATAMENT CHIRURGICAL
146 Surgical Management of Meningiomas
Figure 17-1 (A,B) A large left frontal convexity meningioma is demon-strated. There is mass effect involving the frontal and tempora l lobes. (C) Ang iography demonstrates a signif icant tumor b lush, (D) which has
• Operative Procedure Convexity meningiomas require surgical approaches that are primarily dictated by their locations. The following, which are general principles for meningiomas of most locations, hold true for CMs as well:
1. Optimal patient positioning, incision, craniotomy, and tumor exposure
2. Early tumor devascularization 3. Internal decompression/extracapsular dissection 4. Preservation of adherent or adjacent neurovasculature 5. Removal of involved dura and bone
6. Closure
Patient Posit ioning, Skin Incision, Craniotomy
The patient posit ioning, appropriate incision placement, and selection of the optimal approach for tumor exposure are the critical e lements of successful meningioma surgery. The patient is posit ioned in such a way that safety is maximized. Moreover, the ideal position must al-low for an approach that provides complete exposure of the tumor and the involved surrounding bone and dura. At the same t ime, max ima l brain relaxation must be achieved by use of gravity and uncompromised venous drainage. The head should be no lower than the level of the heart, regardless of the posit ion selected, and undue severe neck rotation or flexion must be avoided. In addi-tion, the surgeon's comfort for the duration of surgery must be maintained.
resolved fol lowing embol izat ion. (E ,F ) Using the techniques outl ined in the chapter, the tumor was removed successful ly and there is significant resolution of the mass effect.
PRINCIPIILE REZECTIEI • REZECTIA OSULUI HIPEROSTOTIC
• ABLAREA DUREI INFILTRATE TUMORAL (INCLUSIV DURAL TAIL) SI PLASTIE DURALA
• DURAL TAIL EVIDENTA PE IRM ESTE BINE SA FIE REZECATA DESI NU INTOTDEAUNA ESTE INFILTRATA TUMORAL
• PLASTIA DURALA SE PREFERA A FI FACUTA CU MATERIAL AUTOLOG – FASCIA LATA, PERICRANIU, SAU DACA NU ESTE POSIBIL CU SUBSTITUENTE DURALE
• ESTE PREFERABIL CA OPERATIA SA INCEAPA CU COAGULAREA ARTERELOR NUTRITIVE ALE MENINGIOMULUI
REZECTIA REZECTIAREZECTIA
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STRATEGIA CHIRURGICALA • STRATEGIA DE EXCIZIE ESTE CEA PRIN FRAGMENTARE SI
DISECTIE BLANDA DIN TESUTUL CEREBRAL DIN JUR, DE PREFERINTA PRIN PLANUL ARAHNOIDIAN DE CLIVAJ
• PLASAREA DE TAMPOANE CIRCULAR PERMITE DISECTIA
PROGRESIVA SI CONSTANTA CA SI MENTINEREA PLANULUI DE CLIVAJ PANA LA SFARSITUL REZECTIEI
• SUPRAFATA TUMORII SE COAGULEAZA CONSTANT, MOD PRIN CARE VOLUMUL TUMORII SE MICSOREAZA SI PERMITE O DISECTIE ADECVATA
DIAGNOSTIC ANATOMOPATOLOGIC
• MENINGIOM MICROCHISTIC
EVOLUTIE POSTOPERATORIE
• FAVORABILA • REMISIA DEFICITULUI MOTOR • IN PRIMA ZI POSTOPERATOR => CRIZA PC DESI TRATAMENT ANTICONVULSIVANT => ULTENIOR NU CRIZE
CT NATIV PRIMA ZI POSTOP.
EVOLUTIE POSTOPERATORIE
• NU RADIOTERAPIE ² DIAGNOSTIC HISTOPATOLOGIC ² ABLATIA IN TOTALITATE A TUMORII PROGNOSTIC BUN
• EVALUARE NEUROCHIRURGICALA LA 3 LUNI, 6 LUNI, 1 AN (TIMP DE 5 ANI) APOI 2 ANI
CT NATIV 1 AN POSTOPERATOR
• EXCIZIA POSTOPERATORIE A TUMORII
CT NATIV LA 4 ANI POSTOPETAROR
• STATUS POSTOPERATOR NORMAL
VA MULTUMESC !