Stefanos S. Naxakis

Total Nasal Reconstruction Using a Prelaminated Free Radial Forearm Flap and Porous Polyethylene Implants

Reconstruction of total nasal defects remains one of the most difficult problems in plastic surgery as the nose combines aesthetics and function. Standard techniques using either forehead or nasolabial flaps do not have a place in the case of extensive scarring on the face or areas with high risk of cancer recurrence on the face. In these cases, microsurgical free tissue transfer for the soft tissue reconstruction in combination with bone grafts or implants for the nasal skeleton are ideal. We report the use of prelaminated radial forearm flap with porous polyethylene implants for total nasal reconstruction.

Extramedullary plasmacytoma of the nasal cavity

medullary neoplasms. The latter are rare tumors, more commonly presenting in the submucosal tissue of the upper respiratory tract. A mass or swelling causing nasal or pharyngeal symptoms is by far the most common presentation of this entity in the head and neck region. We report a case of nasal extramedullary plasmacytoma in a 75-year-old female with left nasal obstruction, epiphora, and hearing loss. A review of the symptoms presentations, diagnosis, treatment, survival, and prognostic factors in the affected patients, is also presented. The most common symptoms of nasal tumors, whether benign or malignant, consist of nasal obstruction, blood-tinged mucus, and epistaxis. Facial asymmetry, loose teeth, and sensory changes around the nose are late symptoms and occur less frequently. Differential diagnosis of a nasal mass includes both benign and malignant tumors. Benign tumors of the nose are rare in comparison with malignant growths. In decreasing order of frequency, the benign tumors are osteoma, hemangioma, papilloma, and angiofibroma. Squamous cell carcinoma is the most common malignant tumor of the nose. Other malignant neoplasms include adenocarcinoma, adenoid cystic carcinoma, sarcoma, and malignant melanoma. A rare malignant tumor of the nasal cavity is extramedullary plasmacytoma. According to Willis,1 plasmacytomas are classified into 3 groups: 1. Multiple myeloma characterized by generalized bone involvement and characteristic radiographic findings, with frequently abnormal serum protein and Bence-Jones proteinuria. 2. Solitary plasmacytoma of the bone, with no evidence of generalized disease. 3. Primary plasmacytoma of the soft tissues that can be single or multiple. Extramedullary plasmacytoma represents less than 1% of all head and neck malignancies and less than 0.4% of upper respiratory malignancies. In 1997, Pahor2 reported on a series of 943 cases of plasmacytomas in the period 1963 to 1972. Twenty-two of these cases were extramedullary plasmacytomas, 14 of which were in the head and neck region. Clinical presentation is that of a submucosal mass or swelling with a polypoid configuration often without bone destructions and causing nasal or pharyngeal symptoms.

Chronic rhinocerebral mucormycosis: a rare case report and review of the literature

Rhinocerebral mucormycosis is an invasive infection caused by filamentous fungi of the Mucoraceae family. The rhinocerebral form of the disease represents the most common form and has two distinct clinical entities. The common presentation consists of a rapidly progressive infection with high mortality rate, while the other presentation is that of a chronic infection with lower mortality. In the present paper we report a rare case of chronic rhinocerebral mucormycosis. An 85‐year‐old male with a 6‐month history of purulent and odorous nasal discharge, and sporadic episodes of epistaxis and anosmia, presented to the outpatient department of our clinic. Initial cultures were positive only for Pseudomonas aeruginosa. The patient was unresponsive to ciprofloxacin treatment, developing necrotic areas of the nasal septum suspicious for rhinocerebral mucormycosis. Admission to the ENT clinic followed, with histopathologic evaluation of the vomer bone confirming the diagnosis. The patient was treated with amphotericin B and was discharged 3 weeks later on oral posaconazole therapy. Chronic rhinocerebral mucormycosis may present with atypical symptoms or coinfection with another agent. A high degree of clinical suspicion is required for correct diagnosis and prompt initiation of appropriate treatment.

Oculoauriculovertebral complex with an atypical cause of obstructive sleep apnea

Oculoauriculovertebral spectrum (OAVS) is a birth defect of unknown etiology, often causing obstructive sleep apnea, due to unilateral retrognathia. We describe an adolescent sleep apnea patient, with usual and unusual signs of OAVS. Apart from mandibular hypoplasia, microtia, external auditory canal atresia and cervical vertebrae anomalies, skull base asymmetry was also noted, resulting in aberrant anatomy of the tympanic cavity, and nasopharyngeal obstruction, which was the main source of the patients apneas. The extended craniofacial abnormalities manifested here, suggest a broader developmental impairment, exceeding the 1st and 2nd branchial arch malformation theory, which is the principal hypothesis for OAVS etiology.

Pharyngocutaneous Fistula Complicating Laryngectomy: Can Metronidazole Help?

Aim: To evaluate the use of metronidazole as a prophylactic agent against pharyngocutaneous fistula (PCF) formation. Patients and Methods: Seventy patients who underwent total laryngectomy between 2000 and 2008 in our department were divided into two groups. The first group (M+ group) was placed on a 10-day metronidazole regimen (2 days prior to surgery and 7 days following). The second group (M– group) received only regular preoperative chemoprophylaxis. Results: In total, 17 (24.3%) incidents of PCF were reported, 3 of which were in the M+ group, with the remainder in the M– group. A statistically significant reduction in the PCF rate was noted in favor of metronidazole in the overall population (p = 0.005), as well as in the patient group that had received radiotherapy prior to surgery (p = 0.03). Conclusion: Metronidazole administered for a total of 10 days pre- and postoperatively seems to lower the incidence rate of PCF formation.

Sinus fluid penetration of oral clarithromycin and azithromycin in patients with acute rhinosinusitis.

Background The aim of this study was to investigate the extracellular concentration and the degree of sinus fluid penetration of newer macrolides, within the first 24–48 hours of treatment in patients with acute bacterial rhinosinusitis (ABRS), choosing clarithromycin and azithromycin as model antibiotics. An open, noninterventional pharmacokinetic study was performed at a tertiary teaching hospital. Methods In 36 outpatients with ABRS, sinus fluid aspirates and serum samples were collected 2, 4, 6, 8, and 12 hours or 2, 6, 12, and 24 hours after the administration of three doses of oral clarithromycin, 500 mg, twice daily or two doses of oral azithromycin, 500 mg, once daily, respectively. Drug concentrations were determined in both matrices by high-performance liquid chromatography with fluorometric detection, and the pH was estimated for all sinus fluid samples. Results The average clarithromycin sinus fluid concentration was found to be significantly higher than the corresponding azithromycin concentration (2.47 mg/L versus 0.65 mg/L), while the extent of the average sinus fluid penetration, expressed by the ratio of drug concentration in tissue versus serum, was similar for both drugs (115 and 120%, respectively). Conclusion In patients with ABRS, clarithromycin and azithromycin present adequate penetration into sinus fluid to eradicate erythromycin-sensitive strains of Streptococcus pneumoniae. Considering their comparative in vitro activity, the sinus fluid pH effect, and their sinus fluid penetration profile, we may conclude that among the erythromycin-resistant S. pneumoniae strains, clarithromycin might be advantageous over azithromycin in eradicating some of the low-level resistant strains.

Comparison of click auditory brainstem response and chirp auditory steady-state response thresholds in children

OBJECTIVES During the last twenty years, auditory steady-state responses (ASSRs) are being used as an alternative and adjunct to the auditory brainstem response (ABR) for threshold estimation. This study aims at comparing and finding correlations between air-conduction thresholds using the traditional click ABR and the relatively recently used chirp ASSR test methods, for a large pediatric population. METHODS One hundred and thirty children referred to our Clinic from Hospitals and Clinics of Western Greece ranging in age from 5 to 79 months (mean age = 32.7 ± 14.0 months) participated prospectively. RESULTS Strong and statistically significant correlations were found between the average of the 1000, 2000 and 4000 Hz chirp ASSR thresholds and click ABR thresholds (rs = .826, p < .001), and the average of the 2000 and 4000 Hz chirp ASSR and click ABR thresholds (rs = .824, p < .001). Additionally, there have been measurements for some children with hearing loss in the severe-to-profound range during the ASSR test, but no ABR at the upper limits of the equipment. Click ABR and chirp ASSR thresholds averaged at 2000 and 4000 Hz were within 20 dB in 90% of the ears tested. CONCLUSIONS The results of this study support the inclusion of chirp ASSRs into the pediatric test battery and indicate that they may provide an essential adjunct to the click ABR, especially in the management of very young children with severe-to-profound hearing loss.

Differences in the suppression of distortion product otoacoustic emissions by contralateral white noise between patients with acute or chronic tinnitus.

Abstract Objective: The mechanisms underlying the shift from acute tinnitus to chronic remain obscure. An association between tinnitus and medial olivocochlear bundle (MOCB) reflex dysfunction has been hypothesised by several studies. The differences between participants with acute and chronic tinnitus have not yet been investigated. Design: Participants were examined with distortion product otoacoustic emissions (DPOAEs) suppression elicited by contralateral white noise. They were compared in terms of frequency regions with non-recordable DPOAEs, suppression amplitudes and the presence of DPOAE enhancement. Study sample: Eighteen participants with acute tinnitus, 40 age-matched adults with chronic tinnitus and 17 controls were included. All participants (aged 34.7 ± 9.6years; mean ± Standard deviation) had normal hearing. Tinnitus was bilateral in 22 participants and unilateral in 36. Results: Ears with chronic tinnitus presented significantly lower DPOAE suppression amplitudes than ears with acute tinnitus (p < 0.0001). Both acute and chronic tinnitus ears present a high prevalence of enhancement, significantly different from controls (p < 0.0001, p = 0.0002, respectively). Non-recordable DPOAEs were significantly more frequent in the chronic than in the acute tinnitus and control groups (p < 0.0001). Conclusions: The differences between study groups indicate that when tinnitus becomes chronic, DPOAEs suppression presents changes that might reveal corresponding steps in tinnitus pathophysiology. Treatment implications are discussed.