Rethinking auricular trauma.

Objectives/hypothesis: An unrecognized auricular hematoma can lead to a disfiguring deformity, the cauliflower ear, but it can be prevented with prompt and comprehensive management. Fine needle aspiration with pressure bandages remains the mainstay treatment but will occasionally fail. We review our experience with recurrent or recalcitrant auricular hematomas in terms of their pathophysiology and revision surgery.

Simple compressive method for treatment of auricular haematoma using dental silicone material.

Most of the previous treatment methods for auricular haematoma are inconvenient for both patients and doctors because they are time-consuming and complex and must be performed under sterile conditions. The purpose of this study was to evaluate the effectiveness of a simple compressive method using a dental (silicone) impression material and comparing it with other methods for treatment of auricular haematomas. The authors aspirated a haematoma and then placed a mixed base and catalyst of silicone putty material on the anterior and posterior surfaces of the auricle in the shape of an inverted U for seven days.

Interventions for acute auricular haematoma.

Background: Acute haematoma of the pinna is a condition where a collection of blood forms beneath the perichondrial layer of the pinna. It is usually caused by blunt trauma, and if untreated will ultimately result in a deformity commonly known as 'cauliflower ear' or 'wrestler's ear'. Various treatments are employed to relieve the haematoma but no clear consensus exists on the best way to do so in order to produce the best cosmetic result with the least permanent deformity.

Outbreak of Pseudomonas aeruginosa infections caused by commercial piercing of upper ear cartilage.

Context: Sporadic infections following ear piercing are well documented, but common-source outbreaks are rarely recognized.

Objective: To investigate reports of auricular chondritis subsequent to commercial ear piercing.

Design, Setting, And Subjects: Outbreak investigation by Oregon public health agencies, including cohort study of persons pierced at a jewelry kiosk in August-September 2000, environmental sampling, and molecular subtyping of isolates.

[Diagnosis by magnetic resonance imaging of a case of intramural left atrial hematoma].

We report a case of spontaneous intramural left atrial hematoma with chest pain and pulmonary edema as the primary clinical manifestations. Echocardiographic techniques revealed obstruction of the left atrial cavity by cyst-like masses attached to the posterior and anterior atrial wall. A large intramural hematoma due to extensive atrial wall dissection was observed by magnetic resonance imaging.

Extended rat-ear flap model: a new rodent model for studying the effects of vessel supercharging on flap viability.

A new extended rat-ear flap model, with both an axial and a random component, is described. The flap is based on an axial supply by the posterior auricular artery and the posterior facial vein. The random portion, consisting of the rat dorsum, is capable of being supercharged at two separate sites-in the scapular and pelvic regions.

[Hypoxemia secondary to inferior vena cava return into left atrium].

The case of a right-to-left shunt-induced hypoxemia with an abnormal return of the inferior vena cava (AIVCR) into the left atrium (LA) is reported in a 30-year-old male with cyanosis and polycythemia. The chest X ray and the lung CT scan was normal. Spirometry was normal but the transfert-CO coefficient (KCO) was lowered.

Blood supply to the platysma muscle flap: an anatomic study with clinical correlation.

Purpose: This study evaluated the blood supply of the superiorly based and posteriorly based platysma muscle myocutaneous flap.

Materials And Methods: Four fresh cadaver specimens were injected with Microfil (Flow Technologies, Inc, Carver, ME) red stain in the common carotid artery and blue stain in the brachiocephalic vein. To clarify the blood supply to the platysma muscle, the blood vessels were first identified on lateral and posteroanterior radiographs of the specimens.

The surgical treatment of traumatic hematoma of the auricle.

Background: The auricular hematoma occurs secondary to trauma and can present a therapeutic dilemma for clinicians. Early intervention can be limited to simple incision and drainage. Delay in treatment may allow the growth of ectopic fibroneocartilage derived from the damaged perichondrium.

Auricular endochondral pseudocysts: diagnosis and management.

The auricle can be the site of a variety of cystic lesions, many of which involve either potential spaces between the auricular cartilage and the perichondrium or spaces within the skin and subcutaneous tissues. An auricular endochondral pseudocyst is a fluid collection located within the cartilaginous structure of the auricle. The auricular hematoma and the auricular pseudocyst may represent opposing ends of a continuum of damage and repair of traumatic insults.

Compartmentalization of Th1/Th2 cytokine responses to experimental Yersinia pseudotuberculosis infection in cats.

Specific pathogen-free cats were inoculated subcutaneously into the drainage areas of the left auricular and popliteal lymph nodes with living Yersinia pseudotuberculosis. Inflammation was evident at the inoculation sites and the regional lymph nodes were palpably enlarged at 48 h post-infection. Lymph node enlargement was due to marked paracortical lymphoid hyperplasia and variable neutrophil infiltrates.

Complete ear replantation without venous anastomosis.

Traumatic amputation of the entire auricle is a rare occurrence. Management ideally consists of microvascular reconstruction of auricular arterial, venous, and nerve continuity. However, appropriately sized veins are often not available and venous drainage must be accomplished with leech therapy.

Listeria monocytogenes and Serratia marcescens infections as models for Th1/Th2 immunity in laboratory cats.

Five species of bacteria known to be naturally-occurring pathogens of cats were screened for their ability to grow in feline macrophages in vitro, and to induce antibodies and delayed type hypersensitivity (DTH) responses in vivo. Two of these organisms, L. monocytogenes and S.

A modified murine local lymph node assay for the differentiation of contact photoallergy from phototoxicity by analysis of cytokine expression in skin-draining lymph node cells.

Since predictive differentiation of photoallergenic from phototoxic reactions, induced by low molecular weight compounds, represents a current problem, we tried to improve the differentiation between the two reactions by using a modified protocol of the local lymph node assay (LLNA). Briefly, groups of female BALB/c mice received compound solution or vehicle alone on the dorsum of both ears on 3 consecutive days. Immediately after compound application indicated groups of mice were exposed to a UVA light-dose of 10 J/cm2.

Traumatic auricular hematoma: a case report.

Traumatic recurrent auricular hematoma can be a challenging medical problem, with complications resulting in cauliflower ear. Proper management often depends on an understanding of the pathophysiology and pathogenesis of fibroneocartilage--an abnormal fibrous cartilage formation in response to injury. Traditional treatment by incision and drainage, and compression dressing technique may be inadequate in the setting of recurrent or chronic hematoma.

Treatment of acute auricular haematoma.

Auricular haematoma is a problem frequently complicated by recurrence due to failure to apply adequate pressure over the pinna following simple drainage. We describe a simple method of splinting the pinna using silicone putty which overcomes this problem.

Drainage of CSF through lymphatic pathways and arachnoid villi in sheep: measurement of 125I-albumin clearance.

We investigated lymphatic drainage pathways of the central nervous system in conscious sheep and quantified the clearance of a cerebrospinal fluid (CSF) tracer into lymph and blood. In the first group of studies, 125I-HSA was injected into the lateral ventricles of the brain or into lumbar CSF and after 6 h, various lymph nodes and tissues were excised and counted for radioactivity. Multiple lymphatic drainage pathways of cranial CSF existed in the head and neck region defined by elevated 125I-HSA in the retropharyngeal/cervical, thymic, pre-auricular and submandibular nodes.

Initial management of auricular trauma.

The exposed and unprotected position of the auricle makes it susceptible to injuries. Because many of these injuries are initially managed in a primary care setting, family physicians should have an understanding of the management of auricular hematomas, lacerations, abrasions and thermal injuries. Auricular hematoma requires prompt drainage and pressure applied to the site for several days.

Evaluation of closed-suction drainage for treating auricular hematomas.

The principal and dynamics of closed-suction wound drainage lend themselves to use on auricular hematomas. This type of drainage was evaluated in the treatment of 10 auricular hematomas on nine animals. Seven animal owners rated the results of the procedure as "good," and two rated them as "fair.

[Posterior fossa dural arteriovenous fistula with isolated sinus segment].

Radiological and clinical analysis was performed in 5 patients with posterior fossa dural arteriovenous fistulas (DAVFs) with isolated sinus segment due to sinus thrombosis, and their patho physiological, diagnostic, and therapeutic concerns were discussed. Patients ranged in age from 36 to 73 years old with a mean of 57 years and included 2 males and 3 females. Two patients presented with ataxia, one with ataxia and bruit, one with atypical facial pain, and one with parietal dysfunction.

Current concepts in the surgical management of traumatic auricular hematoma.

There has been considerable confusion in the literature regarding the proper treatment of auricular hematoma. This has stemmed from an inadequate understanding of the mechanisms involved in the formation and propagation of this condition. This article reviews the literature and give suggestions as to the proper surgical management of this problem.

Wrestler's ear: pathophysiology and treatment.

Management of auricular hematomas has always been a challenge for physicians. This injury is very common among wrestlers since early olympic competition times. Initial treatment usually involves simple aspiration and a compression bandage.

[Auricular hematoma--case report of ruptured othematoma and bibliographic review].

Auricular hematoma is not rare condition and its prognosis has been considered to be good in Japanese textbooks. Recurrence of the hematoma, however, frequently occurs by use of simple aspiration or incision, and a pressure dressing. In this paper, we report a case of ruptured othematoma and review the biliographies concerning the pathology and treatment of othematomas.

Treatment of auricular haematoma by silicone rubber splints.

A modification of existing techniques for the treatment of auricular haematoma is described. This method employs incision, drainage and the application of silicone rubber splints (Silastic). Existing methods of treatment are reviewed and discussed.