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PubMed2003

[Use of botulinum toxin type A in neuro-ORL].

Dystonia is the result of abnormal contractions of muscles, which may disturb activities between agonist and antagonist muscles. Since synchronization of laryngeal and masticatory muscles is highly necessary to allow opening and closure of the larynx or the mouth, expression of dystonia is especially exhibited. Focal laryngeal dystonia may disturb phonation, but also breathing or swallowing, which may be difficult to identify. In ORL, the botulinum toxin is used to treat focal dystonias, especially laryngeal (spamodic dysphonia being predominant) and oromandibular dystonias. Beside these indications, intracutaneous injections of botulinum toxin may be helpful in Frey's syndrome in patients with gustatory sweating; injections in the upper esophageal sphincter are also performed in cricopharyngeal dysphagia although this indication is mainly controversial.

Botulinum Toxins, Type A↗
PubMed1998

Local excision of the parotid gland in the treatment of Warthin's tumour.

The results of local excision of Warthin's tumour in the parotid gland (n = 61) (resection of the tumour together with surrounding normal gland and associated lymph nodes) were compared with those of superficial parotidectomy (n = 88) for incidence of recurrence, duration of operation, and degree of facial deformity. A subgroup of patients in each group were tested for gustatory sweating (iodine starch test) and parotid function (quantitative scintigraphy). Local excision had the following advantages over superficial parotidectomy: shorter operating time, less risk of facial nerve damage, less facial deformity, lower incidence of Frey's syndrome, and better preservation of the function of the parotid gland.

Adenolymphoma↗
PubMedDate not supplied

Frey syndrome prevalence after partial parotidectomy.

INTRODUCTION: Frey syndrome is a sequela observed after parotidectomy and the reported incidence varies enormously in the literature. Diagnosis is evaluated by presence of the classic triad of gustatory sweating, heating and flushing while feeding and documented by Minor starch-iodine test. AIM: To evaluate the incidence of this syndrome in patients submitted to partial parotidectomy at Centro Otorrinolaringológico de Limeira, from 1994 to 2004, including presence of signs and symptoms and the surgical technique. MATERIAL AND METHOD: Fourteen patients undergoing partial parotidectomy with sternocleidomastoid muscle flap answered a questionnaire and were classified as positive or negative by Minor starch-iodine test in a clinical retrospective study. RESULTS: 21% of the patients presented symptoms and positive iodine test. CONCLUSION: Only the patients presenting clinical symptoms had a positive test and the adopted surgical technique was efficient due to low incidence of the syndrome.

Humans↗
PubMed2006

The bullet that hit a nerve: the history of Lucja Frey and her syndrome.

Duphenix first described gustatory sweating in 1757. The underlying pathogenesis was not appreciated until 1923, when Lucja Frey, a Polish neurologist, observed the phenomenon in a Polish soldier with an infected bullet wound in the parotid gland and suggested that the auriculo-temporal nerve played a role. Lucja Frey was born in Lwów, Poland, in 1889 and began her medical studies in Lwów before moving to Warsaw to work as a neurologist. She amassed a total of 43 publications on various neurological topics over her career. Unfortunately, during the Second World War she was enlisted into the Lwów ghetto, where she worked until her death in 1943. We present the history of Frey's syndrome, particularly the life of Lucja Frey and the syndrome she described.

History, 20th Century↗
PubMed1998

[Surgery in benign parotid tumors: individually adapted or standardized radical interventions?].

BACKGROUND: Several authors demand emphatically that the minimal operative procedure in benign parotid gland tumors has to be a superficial parotidectomy. MATERIAL: Of a consecutive series of 372 patients with benign parotid tumors treated in our department between 1973-1996 81% of the patients could be followed up 1-24 years. in 10.9% a total parotidectomy was performed, in 16% a lateral parotidectomy and in 73.1% a simple extirpation of the tumor (often taking away a small margin of surrounding parotid parenchyma). The operating microscope and microsurgical techniques were used in all of these operations. RESULTS: Of all the followed-up patients 2.3% developed a recurrence. There were no recurrences of cystadenolymphomas or of rare types of adenomas. Recurrences of primary treated pleomorphic adenomas occurred in 3.0%. In recurrent pleomorphic adenomas a further recurrence could be seen in 7.4% of the cases. The over-all incidence of permanent facial nerve weakness was 2.1%: 0.7% after extirpation, 3.3% after lateral parotidectomy and 9.7% after total parotidectomy. we observed in 6.3% a gustatory sweating. CONCLUSION: Our data prove that with simple extirpation similar results compared to lateral parotidectomy can be achieved concerning recurrence, function of the facial nerve and the Frey's syndrome. We suggest a surgical management adapted to the extent, the size and the location of the parotid gland tumors. In our opinion lateral or total parotidectomy should be reserved for tumors of larger amount or deep located tumors.

Adolescent↗
PubMed1993

Dermis-fat graft after parotidectomy to prevent Frey's syndrome and the concave deformity.

Dermis-fat grafts were performed on 7 patients at the time of parotidectomy to prevent Frey's syndrome and the characteristic concave deformity. Only 1 patient demonstrated postoperative Frey's syndrome, and 1 demonstrated a slightly concave deformity due to fat absorption. Although other barrier materials have been reported to achieve success in preventing gustatory sweating, our method simultaneously corrects the associated deformity of facial contour as well.

Adipose Tissue↗
PubMed1999

Frey syndrome before Frey: the correct history.

OBJECTIVE: To review the chronology of publications on gustatory sweating before Frey's landmark publication. METHODS: Reports on Frey syndrome were reviewed, and all references given to publications before 1950 were obtained and examined. References to prior publications in the obtained articles were similarly reviewed. The cases described in these publications were analyzed for their compatibility with the accepted clinical symptoms of Frey syndrome. RESULTS: Despite numerous references, the case described by Duphenix in 1757 is most probably a traumatic parotid fistula. The first reported case of Frey syndrome should be attributed to Baillarger in 1853.

Eponyms↗
PubMed2002

Increased botulinum toxin type A dosage is more effective in patients with Frey's syndrome.

OBJECTIVE: To compare the duration of effect of two dosage regimes of botulinum toxin A to treat patients with Frey's syndrome. STUDY DESIGN: Prospective study of two unselected cohorts of 20 patients each. METHODS: The dimension of the affected skin area was determined with Minors iodine-starch test. The skin was infiltrated with botulinum toxin type A (Dysport, Ipsen Pharma, Ettlingen, Germany) using an interinjection distance of 1 cm. In the first group, a concentration of 10 mount units (MU)/0.1 mL and in the second group a concentration of 20 MU/0.1 mL was used. At each injection site, 0.1 mL of the respective solution was injected. The outcome measures were the time of reappearance of gustatory sweating, and the results of an iodine-starch test 10 and 20 months after treatment. RESULTS: Using the lower concentration, the mean duration of effectiveness was 8.3 +/- 2 months (mean +/- standard deviation). Using the higher concentration, the effect was much longer at 16.5 +/- 6 months. Eighty-five percent of the first group but only 5% of the second had a positive Minor's iodine-starch test 10 months after treatment. After 20 months four patients in the second group still had a negative iodine-starch test. In both groups, the amount of required botulinum toxin for the second treatment after recurrence of Frey's syndrome was the same as for the first treatment. CONCLUSIONS: Using a higher concentration of botulinum toxin type A (20 MU Dysport/0.1 mL) is more effective than a lower concentration (10 MU Dysport/0.1 mL) in the treatment of Frey's syndrome.

Botulinum Toxins, Type A↗
PubMed1983

Complications of parotidectomy.

Parotidectomy, whether subtotal or total, is a surgical procedure associated with certain possible complications--namely, facial nerve injury, hemorrhage, infection, salivary fistula, seroma, keloid formation, greater auricular nerve anesthesia, gustatory sweating, and recurrent tumor. We review these complications to help the surgeon with preoperative patient counseling, as well as postoperative reassurance, and discuss those that are amenable to further treatment, either medical or surgical or both.

Facial Nerve Injuries↗
PubMedDate not supplied

Frey's syndrome following submandibular gland excision: an unusual postoperative complication.

Gustatory sweating and flushing, or Frey's syndrome, is a fairly common complication following surgery or injury to the parotid gland and is thought to be caused by aberrant nerve regeneration. A similar condition has been reported in the literature following surgery to the submandibular region. Since this was first described in 1934, only 7 subsequent cases of submandibular sweating and flushing have been reported. We present a case of a 52-year-old female who underwent excision of the left submandibular gland as a result of chronic sialadenitis. Twelve months following surgery, symptoms indicative of Frey's syndrome were experienced in the operative region. A review of the aetiology and treatment of the condition is described.

Female↗
PubMed1977

A new concept in the treatment of Frey's syndrome: the use of interpositional dermal grafts. An experimental study in the dog.

Frey's syndrome or gustatory sweating is a common complication of parotid gland injury or surgery. Forty to 60 percent of the patients undergoing parotidectomy will develop manifestations of this syndrome but only 10-15 percent of these require treatment. To date tympanic neurectomy is the most efficacious method of treating the problem but relief is not obtained in all cases. Based on an experimental study in the dog, a new approach to the prevention of Frey's syndrome is presented. Since Frey's syndrome is due to the aberrent regeneration of parasympathetic nerve fibers of the parotid gland into the severed sympathetic nerve endings in skin overlying the gland, it is proposed that the insertion of a dermal graft barrier between the resected parotid gland and the skin will prevent Frey's syndrome. Histological sections of dermal grafts, buried for three to six months tend to confirm that this idea has some merit.

Animals↗
PubMed1986

Frey's syndrome: secondary to condylar fracture.

Frey's syndrome, or gustatory sweating, is most commonly seen as a sequela of superficial parotidectomy. It can also be caused by other forms of trauma, including blunt trauma, but rarely does it occur without trauma.

Adult↗
PubMed1991

Sternocleidomastoid muscle transfer and superficial musculoaponeurotic system plication in the prevention of Frey's syndrome.

Parotidectomy may be associated with a significant depression in the retromandibular region and a significant incidence of gustatory sweating (Frey's syndrome). Superiorly and inferiorly based sternocleidomastoid flaps and posterior plication of the superficial musculoaponeurotic system were evaluated for their ability to ameliorate both consequences. Sixteen patients with sternocleidomastoid flaps and 16 patients with superficial musculoaponeurotic system plication were compared to a control group of 104 patients. The incidence of Frey's syndrome was 47.1% in the control group, 12.5% (P = 0.025) in the sternocleidomastoid flap group, and 0% (P = 0.005) in the superficial musculoaponeurotic system plication group. The surgical techniques are described. The prevalence of Frey's syndrome is discussed with respect to age, sex, radiation therapy, and the type of parotidectomy performed. The indications and contraindications of the three surgical techniques are described.

Fasciotomy↗
PubMed2001

Role of the sternocleidomastoid muscle flap preventing Frey's syndrome and maintaining facial contour following superficial parotidectomy.

The sternocleidomastoid muscle flap may play a significant role in reducing the incidence of Frey's syndrome and maintaining facial contour after parotidectomy. Patients who underwent superficial parotidectomy from August 1992 to March 1999 were divided into two groups (N = 26). One group had sternocleidomastoid muscle flap reconstruction. A historical cohort study was designed with the two groups being matched for sex, age, pathology, postoperative radiation, date of surgery, and extent of dissection. The starch iodine test was used to evaluate for gustatory sweating, and the Observer Rated Disfigurement Scale was used to assess facial contour and aesthetics. The results of our study suggest that the sternocleidomastoid flap reconstruction following parotidectomy surgery does not alter the incidence of Frey's syndrome and does not significantly improve facial contour and aesthetics.

Cohort Studies↗
PubMed1995

Frey's syndrome: treatment with botulinum toxin.

The effectiveness of botulinum toxin injections for the management of Frey's syndrome was studied. Botulinum toxin A (approximately 0.5 Units/cm2) was injected intracutaneously into the affected skin area as determined by Minor's starch iodine test. Gustatory sweating in the treated skin area ceased completely within 1 week and has not reappeared (12 months follow up until now in the first treated case). There have been no side effects. It is concluded that local botulinum toxin injections are a highly effective and safe treatment for Frey's syndrome. Additional study is required to evaluate the duration of the therapeutic effect.

Botulinum Toxins↗
PubMed2003

Auriculo-temporal nerve. Clinicopathological relevance to facial-maxillary practice.

Anatomically, the auriculo-temporal nerve (ATN), a peripheral branch of the trigeminal nerve is in close relation to the parotid gland, neck of the mandible, temporal vessels, and sphenomandibular ligament. Fine branches of the ATN are at risk of division during surgical intervention of the parotid gland or condyle of the mandible. "Frey's syndrome", or abnormal gustatory sweating, may be a consequence of injury to the branches of the auriculo-temporal nerve. This uncommon syndrome can also occur with fractures of the temporo-mandibular joint (TMJ), due to the anatomic proximity of the nerve to the bone.

Cranial Nerve Injuries↗
PubMed2004

The role of SMAS flap in preventing Frey's syndrome following standard superficial parotidectomy.

Between 1992 and 2002, 46 patients who underwent standard superficial parotidectomy with a superficial muscoloaponeurotic system (SMAS) preservation technique were included in a retrospective study. Twenty-six patients were evaluated by questionnaire for subjective symptoms of gustatory sweating and flushing as well as satisfaction with the aesthetic appearance of their cheek. Six of twenty-six patients (23.1%) complained of symptoms of Frey's syndrome. Seven of twenty-six patients (26.9%) demonstrated a positive Minor's starch iodine test. By this technique the incidence of Frey's syndrome is substantially reduced from 48% by subjective review and 72% by objective measurement reported in the previous study by the same group of surgeons without using the SMAS preservation technique. This study supports the role of the SMAS flap in preventing Frey's syndrome following standard superficial parotidectomy.

Adult↗
PubMed2005

[Treatment of Frey's syndrome using botulinum toxin].

BACKGROUND: Frey's syndrome, also known as gustatory sweating, has been known for 150 years. However, effective treatment was established only as recently as in 1994, with botulinum toxin used for the treatment of torticollis or other forms of spasticity. MATERIAL AND METHODS: We present an overview over Frey's syndrome. Diagnosis with Minors sweating test and treatment with botulinum toxin is presented on the basis of our own experience. Relevant literature was found through Medline. RESULTS AND INTERPRETATION: Botulinum toxin injected intracutaneously is a safe and effective method for the treatment of Frey's syndrome. The results are convincing and the method is well documented in the literature. So far, no serious side effects have been found.

Adult↗