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Biomedical subjects

V Darrouzet

Publications and source records attributed to V Darrouzet.

At least 19 recordsLinked to original sources

[Facial paralysis after temporal bone trauma].

OBJECTIVES: To evaluate functional outcome in 64 cases of facial paralysis following temporal bone fracture and discuss decisive arguments leading either to medical treatment or surgical management. METHODS: Sixty-four patients suffering from post-traumatic facial paralysis were managed between 1995 and 2003: 38 (59%) were given medical treatment and 26 (41%) underwent surgery. A combined middle fossa and transmastoid approach was mostly used (58%). Electrophysiological testing and CT scan results were the main points of the decision algorithm. RESULTS: Electroneuromyography seems to be the most accurate exploration for guiding treatment. Good results (grades I to II on the House and Brackmann scale) were obtained in 63% of cases after medical management and in 39% of cases after surgical treatment. Grades III or IV were obtained in 13% of medically-treated patients and 42% of surgically-treated patients. CONCLUSION: Management of facial paralysis following temporal bone fracture in accordance with electrophysiological testing (evoked EMG) together with CT scan findings enabled accurate indications for surgical treatment. A good grade I or II result can be expected after medical management. A grade III is at best reached after nerve anastomosis.

Adolescent↗

[Side-to-end hypoglossal-facial nerve anastomosis with intratemporal facial nerve translocation. Long-term results and indications in 15 cases over 10 years].

OBJECTIVES: To describe functional results concerning facial and lingual mobility after side-to end hypoglossal facial nerve anastomosis. MATERIAL AND METHODS: 15 patients were operated on between 1993 and 2002 (11 cases of facial nerve injury during vestibular schwannoma surgery, and 4 cases of brainstem stroke). Were assessed at a minimum of 18 months postop tonus and facial voluntary movements recovery (modified House Brackmann (HB) grading), lingual mobility (amyotrophy and self-evaluation questionnaire), and patients' overall satisfaction (questionnaire). RESULTS: The mean delay to evaluation was 57.5 months. The tonus recovery appeared within 6 to 8 months (mean 28.5 weeks, SD 4.6 weeks). All patients recovered a normal tonus. The facial function was evaluated HB grade III in II cases (73.3%), grade IV in 3 cases (20%) and grade V in one (6.6%). Eye occlusion was obtained within 13.6 months on average (SD 2.6 months) in all cases except one. The blepharorraphy was maintained in 2 patients. No facial spasm was noted. The lingual motricity troubles were absent in 93.3% of cases. Patients were satisfied in 93.3% of cases. The less satisfactory results were observed when patients were managed late (>2 years after nerve section) and in case of brainstem stroke. CONCLUSION: This technique seems to be very efficient. It presents the advantage to preserve lingual motricity and to decrease postoperative problems of midface spasticity.

Adult↗

[Treatments of hereditary hemorrhagic telangiectasia of the nasal mucosa].

UNLABELLED: Hereditary Hemorrhagic Telangiectasia is a systemic autosomal dominant disorder involving blood vessels. The most common symptom is recurrent epistaxis. The treatments of these epistaxis are numerous but such treatments are often symptomatic and their effects are often not sustained. Some of these treatments may be complicated by visceral vascular malformations. The aim of this study is to propose a treatment plan for these patients with hierarchical organisation of therapeutic options taking into account of their previous therapy. METHOD: H. Plauchu organized in Paris, december 2002 a meeting with any medical specialists of this disease. They have analysed variety of therapies that have been proposed for epistaxis control in Hereditary Haemorrhagic Télangiectasia. RESULTS: Most common use packing of nasal fossa and then hyperselective embolization of the internal maxillary and facial arteries for severe epistaxis. For chronic epistaxis, best treatment use sclerotics products (Ethibloc) and laser. After discussion, primary embolization could be useful to reduce vascularization of nasal fossa. CONCLUSION: Treatment of epistaxis in Hereditary Haemorrhagic Telangiectasia could increase in few years. Use of an index card of for epistaxis in the disease of Rendu-Osler could help to find treatment of choice.

Acute Disease↗

[Management of cerebellopontine angle meningiomas and the posterior part of the temporal bone. Report on 44 cases].

OBJECTIVES: To review and study the management of CPA meningiomas through the experience of an otoneurosurgical team. MATERIAL AND METHODS: Fourty-two patients (44 meningiomas) were considered. Seventy-seven per cent of tumors (34 cases) were operated on; 6 tumors (14.6%) were exclusively irradiated using fractionated radiation therapy (FRT) and four only surveyed (9,8%). RESULTS: transpetrosal approaches were exclusively used. These were translabyrinthine (TLA) in 47%, widened retrolabyrinthine (WRLA) in 41% of cases, transcochlear approach (TCA) in three cases and a middle fossa in one. A transtentorial approach was combined in 35% of cases (8 TLA, 4 WRLA). Surgical removal was incomplete in 11,8% of cases; in 3 cases growing tumor was treated by FRT included one case of anaplasic tumor Postoperative complications were: 1 meningitis, 1 wound abscess, 2 hydrocephalus (6%) and 4 CSF fistulas (12%). No complications have been observed during the last 7 years (21 cases). House and Brackmann Grade 1 or 2 facial function was obtained in 59% of cases (but 10 patients had a preoperative facial nerve paresis). A normal or subnormal AAO-HNS Class A-B Hearing could be preserved in 57% of WRLA. Radiation therapy allowed tumor shrinkage in all cases. In 3 cases this regression was of more than 50%. CONCLUSION: Surgery is the gold standard in treating CPA meningiomas. Transpetrosal approaches and particularly WRLA pure or combined to a transtentorial approach are for us the best way to remove these tumors in preserving hearing and facial nerve function. When hearing is poor or when tumor extension to the clivus or the premeatal area is consistent a TLA is either planned preoperatively or obtained from a WRLA.

Adult↗

[Vertigo and pathology of the cerebello-pontine angle].

Many pathologies of the cerebello-pontine angle can induce vertigo or dizziness. Usually they are due to benign or malignant tumors. Pathophysiology of this vertigo involve lesion of the labyrinth with erosion, of the endolymphatic sac by invasion or compression, or directly by lesion of the vestibular nerve like in vestibular schwannomas. The vestibular nerve can also be injured by extrinsic compression like in meningiomas. Finally very big tumors can be compressive on the cerebellum or on the brainstem inducing also dizziness. Vertigo is often an important symptom of cerebello-pontine angle tumors. In association with others it will guide the diagnosis. Nevertheless, auditory evoked potentials, video-nystagmography, and otolithic evoked potentials are very important to determine exactly if the vestibular nerve is injured and if there are signs of central compression before surgery.

Cerebellar Neoplasms↗

[Delayed facial palsy after vestibular schwannoma resection: the role of viral reactivation. Our experience in 8 cases].

OBJECTIVE: To study the role of herpes virus reactivation in the onset of more than three days-delayed facial paralysis (FP) following vestibular schwannoma (VS) surgery and advocate a specific medical management. MATERIAL AND METHODS: Retrospective study on 8 cases from a series of 348 patients operated on of a VS between 1996 and 2002. Seven of the eight patients were given intravenously acyclovir (30 mg x kg(-1) x d(-1) for 5 days) and methyl-prednisolone (2 mg x kg(-1) x d(-1) for 7 days). A serologic testing looking for specific anti-herpes simplex viruses type 1 and 2 (HSV-2) and varicella-zoster virus (VZV) antibodies at the onset of the FP and 2 weeks later could be done in only 3 cases. RESULTS: Mean delay of FP onset was 8.75 days. Mean time for recovery with intravenous treatment was 90 days. All treated patients had a House and Brackmann grade 1 recovery. The last one had only a grade 3 after 400 days of evolution: he could not be treated because of postoperative transient psychiatric problems. Serologic testing revealed in those patients in whom it could be done either a high level of anti-HSV or -VZV antibodies at the time of onset or a dramatic increase in anti-HSV or anti-VZV antibodies between the two samples, strongly suggesting a HSV or VZV reactivation. CONCLUSION: HSV or VZV reactivation can be evocated in most cases of delayed FPs arising in the postoperative course of VSs, suggesting usefulness of emergency-given steroid and acyclovir intravenous regimen to block virus replication and fight secondary oedema and inflammation causative of nerve lesions. Evoked reactivation mechanism is comparable to that already suspected in delayed FP arising with the same delay in middle ear surgical procedures.

Acyclovir↗

[Acoustic neuroma surgery. Results and complications in 348 cases].

OBJECTIVES: The aim of this study was to evaluate post-operative complications after acoustic neuroma surgery. METHODS: This was a retrospective study of 348 patients, who had acoustic neuroma surgery between 1984 and 1999. Symptoms, pre-operative evaluation, surgery and post-operative complications were analysed. RESULTS: 174 men and 174 women had an operation. Mean age was 51.8 years (11-78). 31 patients had a grade I tumour, 106 a grade II, 71 a grade III and 140 had a grade IV tumour. 195 patients have been operated through the translabyrinthine approach, 110 through the retrolabyrinthine approach, 42 through the sub-occipital approach, and one through the transcochlear approach. Mortality was 0.85%, 59.2% patients had a post-operative facial paralysis. Most of patients had post-operative dizziness, and 30% still had vestibular disturbances after one year. 9 patients (2.6%) had a cerebrospinal rhinorrhea and 24 patients had a cerebrospinal wound leak (6.9%). 22 patients had post-operative meningitis (6.3%). 2 patients had a cerebello pontine angle haemorrhage, and 3 patients had a brain stem infarct. CONCLUSION: Transpetrous approaches are safe for acoustic neuroma removal and the post-operative complication rate is low. The retrolabyrinthine approach seems to be a good hearing preservative approach, regardless of tumour volume.

Adolescent↗

[Video-nystagmography and vibration test in the diagnosis of vestibular schwannoma. Review of 100 cases].

OBJECTIVE: To evaluate informations given by the combination of videonystagmography (VNG) including vibratory tests and auditory brainstem responses (ABR) in patients suffering vestibular schwannoma (VS) and try to find the most conclusive test(s). Combination of different functional tests is supposed to improve diagnosis and preoperative evaluation and precise indication for magnetic resonance imaging (MRI) facing audiological and vestibular symptoms. MATERIAL AND METHOD: A prospective study of 100 patients with VS. All patients underwent a preoperative work-up including complete audiometry, auditory brainstem response (ABR) and videonystagmography (VNG). VNG protocol included caloric testing, rotatory tests, oculometry tests (saccade testing, optokinetic testing) and spontaneous and gaze-evoked nystagmus. From these six tests a score of positivity could be set, from 0 to 6. RESULTS: The vibratory test is non invasive and easy to realize. Were observed: 1/ a good sensitivity in vibratory test to elicit nystagmus in this context. 2/ a good correlation between subliminal rotatory chair tests and vibratory tests 3/ a better control of caloric testing using vibratory test. 4/ a good but deficient sensitivity of ABR alone with regard to VS (95%) 5/ an increase of sensitivity of VNG when coupling it with ABR and using as a criterion the score of positivity: no patient had all tests negative. CONCLUSION: The vibratory test is a non-invasive, fast examination with an easy execution. It reinforces VNG-ABR association screening power to diagnose VS. It constitutes, combined to caloric testing a good tool to diagnose and evaluate unilateral vestibular weakness.

Adult↗

[Adenoid cystic carcinoma of the head and neck: a review of 30 cases].

OBJECTIVES: To evaluate treatment results and identify prognostics factors which determine local and regional treatment failure and crude survival in adenoid cystic tumours (ACT) in the head and neck. METHODS: A retrospective study (1984 to 2001) of 30 cases of adenoid cystic tumour. The mean age was 56.9 years, with a sex ratio female to male of 2:1. Tumours of all sites were encountered, most (26.7%) being in the nose and sinuses and major salivary glands (26.6%). Tumours at the T4 stage were found in 14 cases, mainly situated in the nose and sinuses (50%). No patient had cervical lymphadenopathy, while two patients (6.7%) had bony metastases at the time of diagnosis. Two patients (6.7%) were treated by surgery alone, for T1 and T2 tumours; four patients (13%) had radiotherapy alone, and 24 patients (80%) had surgery with post-operative radiotherapy with a mean dose of 60.3 Grays (56-65 Grays). RESULTS: Local recurrence occurred in 30.8% (nine cases) after a mean interval of 43 months (1 to 10 years). Treatment of these recurrences was by revision surgery in six cases, leading to local control in one case, but in a patient with pulmonary metastases. No cases of lymph node recurrence were observed. 30% of patients developed metastases; these were pulmonary in 44% and bony in 33.3%. Mean follow-up was five years. Crude survival at 3 years was 91%, at 5 years 86%, and at 10 years 50%. The percentage tumour-free survival was 70% at 3 years, and 57% at 5 years. 22 patients (73.3%) are still alive, 17 of them recurrence-free. Analysis of the prognostic factors has shown tumour to be more aggressive in the nose and sinuses when they presented at an advanced stage (T4); recurrence was more common when excision was incomplete, or if there was peri-neural spread. Tumours of "massive" histological type carried a poorer prognosis than those of cribrigorm type (60% death compared with 10%). The development of metastases is independent of local recurrence. Metastases to bone appear to be more rapidly aggressive than pulmonary metastases, which may remain asymptomatic for some time. CONCLUSION: Combined radiotherapy and surgery have allowed improved local control of ACT, but the therapeutic challenge remains the multiply recurrent ACT, or those with symptomatic metastases, and this despite new research techniques (neutral therapy, immuno-histochemistry, molecular biology). ACT are rare tumours, whose prognosis remains poor.

Adult↗

[Surgical methods of removal of T4 nasopharyngeal malignancies. A preliminary report on 18 cases].

OBJECTIVES: To describe the technique and evaluate postoperative sequelae and results of transfacial surgical removal of T4N0 nasopharyngeal malignant neoplasms. MATERIAL AND METHODS: Eighteen cases of surgically-treated nasopharyngeal cancers, managed between january 1993 and october 2000, were retrospectively studied. Three patients were non-responders to neoadjuvant chemotherapy, 6 suffered local recurrence following standard treatment and 7 were operated first either because of a huge and osteolytic tumor or because of an uncommon histolopathology. RESULTS: Preoperative Vth nerve neuralgia (8 cases) was alleviated (4 cases) or cured (3 cases). At the time of diagnosis, ophthalmoplegia was observed in 3 cases. It disappeared postoperatively in 2 cases and after following radiation therapy in one. Median follow-up of the series was of 31.8 mths. Four patients were died of disease; one of them from distant metastases 4 years post-surgery. One patient is alive with distant metastases. The 13 last (72.2%) are alive without disease with a 35.6 mths median follow-up (6-77 mths). DISCUSSION: This short and heterogeneous series cannot lead to any evidence-based conclusion. But mid-term free-of-disease survival of 4 of the 5 patients suffering local recurrence and of patients presenting with so-called non-radiation-sensitive tumors is to be considered. In comparison with the high risk of neurological sequels following reirradiation, absence of specific toxicity of surgery observed in this series is to be underlined. CONCLUSION: In selected cases surgical treatment does not demonstrate any toxicity and is able to offer mid-term local control of the disease. Its role is to be evaluated further before inclusion in the therapeutic algorithm of these very bad prognosis-associated tumors.

Adult↗

Management of facial paralysis resulting from temporal bone fractures: Our experience in 115 cases.

OBJECTIVE: The goal of this study was to review decision factors and overall results regarding surgical and nonsurgical management of post-traumatic facial nerve paralysis (FP). STUDY DESIGN: A retrospective study and literature review were performed. METHODS: Between 1984 and 1990, 115 cases of post-traumatic FP were handled. Patients were evaluated through clinical, audiologic, radiologic, and electromyogram assessment. Depending on examination results, patients were treated either medically or surgically through total facial nerve decompression. RESULTS: Forty-nine of the 50 medically treated patients experienced a normal or subnormal facial function recovery (grade I-II). Of the 65 (56.5%) surgically treated patients, 52 (80%) had immediate, 2 had delayed, and 11 (17%) had unknown delay-associated FP. The approaches chosen were middle fossa and transmastoid (75.3%), translabyrinthine (10.7%), or pure transmastoid according to facial nerve nonmotor branch evaluation, hearing, location of the fracture line, and the patient's general condition. Lesions were predominantly found in the geniculate ganglion area (66.2%). A nerve gap was found in only 13.8% of the cases. At 2 years after surgery, 93.8% had a grade I to III recovery. None had grade V or VI. CONCLUSION: The rarity of severe nerve lesions encountered in surgically treated patients raises the question of better selection of candidates for surgery. Surgery is clearly indicated when FP is total, is of immediate onset, and is associated with a bad prognosis electromyogram pattern. In other settings, decisions are to be made based on high-resolution CT data and electromyogram results, thanks to a clinical survey and second electromyogram evaluation.

Adolescent↗

[Ethmoid adenocarcinomas: retrospective study of 76 patients].

From the retrospective study of 76 adenocarcinomas of the ethmoid sinuses, results were expressed in two terms: the morbidity related to surgery and the oncologic outcome. This case study extends between 1975 and 2000. It includes 71 men and 5 women, with an average of 61 years. 81% of them works in wood dust, with a mean duration of exposure of 26 years. The diagnosis of adenocarcinoma is realized in the three months after the first signs, essentially rhinologicals, next neurologicals and ophthalmologicals. The majority of tumors were classified as T3N0M0, i.e. 57.89%. The treatment of this tumors is surgical: 34.2% surgical only and 59.2% with radiotherapy. The transfacial approach (paralateronasal and degloving) and the combined surgery are respectively performed in 36 patients and 35 patients. 23.2% patients had a local recurrence, and 10% developed cervical nodes and systemic metastasis. Survival rate based on the Kaplan-Meier actuarial method is 82% at 3 years, 80% at 5 years, 72% at 10 years. The prognosis of ethmoidal cancer is strictly correlated to local control. Local recurrence is statistically more likely in patients with involvement of the dura, brain and sphenoid sinus. With the analysis of the carcinologics results, we discuss the therapeutics indications of the adenocarcinomas and a new classification. Taking in account the involvement of the dura, sphenoid and orbit. We did not find any statistical differences between T3 patients treated by combined approach (n = 13) or by transfacial approach (n = 15).

Actuarial Analysis↗

[Glomangioma or "glomus tumor" of the nasal cavity: apropos of a new case and review of the literature].

Glomangioma, or "glomic tumour" is a benign soft tissue tumour appearing most commonly at the distal extremities, in the nailbed and subcutaneous tissue. This is a vascular tumour, rare for the dermatologist, and exceptional in an ENT site. We describe here what is, as far as we can tell from the literature, the eighteenth case. The problem is the diagnosis of a vascular tumour, arising usually from the septal mucosa, which has to be distinguished histopathologically from a haemangiopericytoma. Radiological investigation will define the extent of the tumour and guide the treatment plan, which is purely surgical and consists of wide excision to avoid the possibility of a local recurrence.

Adult↗

Preference for the closed technique in the management of cholesteatoma of the middle ear in children: a retrospective study of 215 consecutive patients treated over 10 years.

OBJECTIVES: To evaluate clinical data, extensions, residual and recurrent lesion rates, and functional results in cases of cholesteatoma in pediatric patients. DESIGN: A retrospective study at a single tertiary care center over a decade. PATIENTS: In 199 children (mean age 9.6 years), 215 cholesteatomas were treated surgically, and the children were followed up for an average of 70 months (range 25-118 months). INTERVENTIONS: Therapeutic and rehabilitative surgical procedures were done, using either a closed technique (CT) or an open technique: tympanoplasty in open technique (TOT), radical mastoidectomy (RM), or Rambo's technique) MAIN OUTCOME MEASURES: Surgical findings, residual and recurrent lesions rate, and hearing assessment. RESULTS: The first surgical procedure was CT in 88% of cases, TOT in 10%, RM and Rambo's technique in 1%. Two operations were done in 61.8% of children; 21% had three operations and 4.5% had four. Residual lesions were observed in 21.5% of all children, 32.8% in those undergoing a planned second look. Recurrence rate was 9.8%. Surprisingly, residual and recurrent lesion rates were higher after TOT (23.8% and 19%) than after CT (20.5%, 8.9%), but TOT-treated children had much more extensive lesions. A speech reception threshold (SRT) <30 dB hearing loss (HL) was achieved in 63.7% of patients, and normal hearing was obtained in 12.1%; SRT was significantly better after CT (mean 26.7 dB) than after TOT (mean 37.4 dB), after type II (mean 27 dB) than after type III (35 dB). A high-frequency pure-tone hearing loss >10 dB was uncommon (7.6%). CONCLUSION: These results support the continued use of CT in most cases of cholesteatoma in children in developed countries.

Adolescent↗

[Fractionated radiation therapy long-term effectiveness in the treatment of cerebello-pontine angle schwannomas: 12 years of experience in 30 cases].

UNLABELLED: The purpose of this research was to evaluate long-term results of fractionated radiation therapy (RT) in the treatment of cerebello-pontine angle schwannomas. METHODS: from January 1986 to October 1995, 29 patients with stage III and IV scwhannomas were treated with external fractionated RT. One patient was irradiated on both sides and indication for RT was as follows: a) poor general condition or old age contraindicating surgery, 16 cases; b) hearing preservation in bilateral tumors after contralateral tumor removal, 6 cases; c) partial resection or high risk of recurrence after subsequent surgery for relapse, 5 cases; d) non surgical relapse, 3 cases. Most patients were irradiated with 6 to 10 MV photons. A three- to four-field technique with coplanar static beams and conformal blocks was used. Doses were calculated on a 95 % isodose and were given 5 days a week for a mean total dose of 51 Gy (1.8 Gy/fraction). RESULTS: Median follow-up from RT was 66 months (7 to 120); seven patients died, two with progressive disease, five from non tumoral cause. Two patients underwent total removal after RT (1 stable and 1 growing tumor). On the whole, tumor shrinkage was observed in 13 patients (43.3 %), stable disease in 14 (46.6 %), and tumor progression in three. Hearing was preserved in 4 out of 6 hearing patients (1 class A hearing, 2 class B and 1 class C). No patient experienced CN5 or CN7 neuropathy. CONCLUSION: long-term efficacy or fractionated RT is well documented in this series. Acute and delayed tolerance was excellent. Hearing can be preserved for a long time.

Adolescent↗