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Biomedical subjects

M Damm

Publications and source records attributed to M Damm.

35 records · Page 2Linked to original sources

Turban tumour with involvement of the parotid gland.

Familial autosomal dominant cylindromatosis (FADC, turban tumour syndrome, Brooke-Spiegler-syndrome and many more, MacKusick catalogue numbers 123850, 313100) is a rare hereditary disease usually presenting in the second or third decade. With female preponderance dermal cylindromas predominantly arise in hairy areas of the body with approximately 90 per cent on the head and neck. Transformation to malignancy seems to be scarce. Although cylindromas of the skin resemble basal cell adenomas of the salivary gland, there is usually no salivary gland involvement. On the other hand, patients with basal cell adenomas of a salivary gland usually do not show dermal lesions. We report one of the rare cases of FADC combined with multiple basal cell adenomas of the parotid glands and present a review of the literature.

Adenoma↗

Effects of systemic steroid treatment in chronic polypoid rhinosinusitis evaluated with magnetic resonance imaging.

BACKGROUND: The aim of this prospective study was to evaluate the efficacy of a combined (local and systemic) steroid therapy on the extent of chronic polypoid rhinosinusitis and patient symptoms. METHODS AND PATIENTS: Subjects of this study were 20 patients with severe chronic polypoid rhinosinusitis with total or subtotal narrowing of the all sinuses. A nasal budesonide spray (2 x 0.1 mg/day) and an oral fluocortolone medication with a daily reduction during a 12-day period (total dose: 560 mg = group 1) and a 20-day period (total dose: 715 mg = group 2), respectively, were administered. Before and after the steroid treatment we evaluated the extent of the sinusitis with MRI and patient symptoms with symptom-related questionnaires. RESULTS: A significant reduction (> 30%) of the chronic polypoid rhinosinusitis was observed in 50% of MRI findings. The steroid effect on polypoid masses was heterogeneous in different anatomic areas (maxillary sinus 40%, anterior ethmoid 19%, posterior ethmoid 33%, sphenoidal sinus 61%, frontal sinus 46%). Most sinusitis-related symptoms were distinctly diminished in most patients (80%). No major side effects were observed. CONCLUSIONS: A combined short-term steroid therapy is highly effective in chronic polypoid rhinosinusitis, reducing the mucosal inflammation mainly in the large sinuses and reducing the incidence of symptoms significantly. However, this therapy was insufficient in the anterior ethmoid and cannot replace the current surgical treatment concept of the osteomeatal complex in CPR. The indication for such a short-term steroid therapy is the preoperative treatment. It facilitates functional endoscopic sinus surgery by reducing the extent of surgical procedures, the time, and thereby the risks of sinus surgery.

Administration, Inhalation↗

Successful treatment of an invasive aspergillosis of the skull base and paranasal sinuses with liposomal amphotericin B and itraconazole.

Invasive aspergillosis and fulminant aspergillosis are rarities with a high mortality. In the literature there is no patient surviving an extended invasive aspergillosis of the paranasal sinuses and skull base after failure of operative intervention and of postoperative amphotericin B therapy. We report a complete remission of an invasive, partially fulminant aspergillosis. After an incomplete removal of the mycotic mass, we started postoperative drug therapy with amphotericin B. Under this treatment, the mycosis progressed. Additionally, the patient developed severe side effects, so that the treatment was interrupted. At this moment, we started a combined antimycotic drug therapy with liposomal amphotericin B and itraconazole. Within 10 weeks, clinically and radiologically, there was complete remission. The patient died 63 weeks after this treatment, due to a fulminant bacterial pneumonia. Postmortem histologic examination showed no aspergillosis in the skull base, paranasal sinuses, or lung.

Amphotericin B↗

Potential role of transoral laser surgery for larynx carcinoma.

BACKGROUND AND OBJECTIVE: The treatment of larynx carcinoma is not settled to date. This prospective study evaluates the potential role of transoral laser surgery (TLS) for larynx carcinoma in a large series of unselected patients from a single institution. MATERIALS AND METHODS: A total of 504 consecutive patients with previously untreated carcinoma of the larynx were seen from 1986-1994. Their treatment modalities and results were prospectively evaluated. RESULTS: TLS was used in 290 patients (58%), total laryngectomy in 130 (26%), conventional partial laryngectomies in 31 (6%), and radiotherapy in 34 (7%). Nineteen (4%) had no curative treatment. Uncorrected actuarial survival for all patients with glottic carcinoma stages I and II treated with laser surgery (n = 202) was 80.2%, cause specific survival 96.7%, and local control 85.8%. Uncorrected actuarial survival for all patients with supraglottic carcinoma stages I and II treated with laser surgery (n = 40) was 49.0%, cause specific survival 78.6%, and local control 87.3%. CONCLUSION: TLS was the most important single treatment modality in this large series of unselected patients. It is a safe and time- and cost-effective alternative to radiotherapy for early stage larynx carcinoma.

Carbon Dioxide↗

[Early detection of profound hearing loss in children. Results of screening students in Rhine schools for the deaf and hearing impaired in Cologne].

OBJECTIVE: Early detection and adequate and timely rehabilitation of profound deafness in children is accepted as an important aim of preventive child health care. Ideally, rehabilitation of congenital deafness should not be delayed beyond the age of six months. The present study seeks to determine whether this goal has been achieved in Germany in the 1990s. PATIENTS AND METHODS: The medical charts of 314 profoundly hearing impaired pupils at the schools for the hearing impaired in Cologne, Germany, were reviewed. All available data on the time of first suspicion and the final diagnosis were collected. In addition, the families of these children were interviewed using a standardized questionnaire. RESULTS: The mean age at first suspicion was 2.1 years, the mean age at the time of final diagnosis was 2.6 years (median: 2.0 years). Breaking down the whole cohort into three subgroups according to the year of birth revealed obvious differences between these subgroups. The final diagnosis for those born from 1974 to 1979 (n = 70) was confirmed in 48.6% at the age of two years, in 46.3% for those born from 1980 to 1985 (n = 121), and in 65.8% for those born from 1986 to 1991 (n = 114) at the age of two. The diagnosis was significantly delayed for children of immigrants (n = 96), where the mean age at diagnosis was 3.7 years as opposed to 2.0 years for the native German population. Of the 314 children, 304 where supplied with hearing aids and five with cochlear implants. Once the audiological diagnosis had been established, no further delay in rehabilitation was noticed. CONCLUSION: Although highly sensitive, cost effective, and non-invasive screening methods (transient evoked otoacoustic emissions and auditory brainstem response audiometry) for the early detection of profound inborn hearing impairment are now available, the current state of early identification of these disorders is inadequate. The reason for this is the lack of a universal and nationwide neonatal screening program. The results of this study indicate that the pure availability of sophisticated screening methods is insufficient if they are not included in a universal screening program.

Child↗

CO2 laser surgery for verrucous carcinoma of the larynx.

BACKGROUND: The verrucous carcinoma (VC) is a low grade malignant tumor. Treatment strategies of VC of the larynx are topics of the ongoing discussion, and the role of the carbon dioxide laser therapy in the management remains unclear to date. STUDY DESIGN/MATERIALS AND METHODS: From 1986 to 1995, 21 patients with glottic VC were treated with transoral carbon dioxide laser surgery. Follow-up ranged from 6 to 122 months (mean 52). RESULTS: In T1 lesions, a complete removal of the tumor was possible with laser-cordectomy in ten cases and with extended laser cordectomy in four cases. In seven patients suffering from T2 carcinoma, a partial laser laryngectomy was performed. There was no tumor-related death in this series. No patient required laryngectomy or radiotherapy. CONCLUSION: The results presented here are superior to those previously reported with radiotherapy. They add further support to the observation that surgery is the better treatment option for VC of the larynx. Based on the results of this study, recommended treatment for T1 and T2 VC is oncologic CO2 laser surgery in combination with a meticulous follow up for early recognition of local recurrence.

Adult↗

Historical evolution of inguinal hernia repair.

When analyzing original articles since the sixteenth century, it becomes apparent that all surgical techniques for repair of the inguinal hernial orifice can be traced back to two simple repair principles. The first is reinforcement of the anterior wall of the inguinal canal and tightening of the external inguinal ring (Stromayr 1559, Purmann 1694, Czerny 1877), and the second is reinforcement of the posterior wall of the inguinal canal and the tightening of the internal inguinal ring, either externally (Lucas-Championnière 1881, Bassini 1889, Lotheissen 1898, McVay 1942, Shouldice 1945, Lichtenstein 1987, Stoppa 1989) or via an intraabdominal approach by laparotomy (Tait 1891) or laparoscopically (Ger 1990, Velez and Klein 1990). We have tried to provide a systematic order to the diverse procedures of surgery of inguinal hernias according to their repair principles. We also point out their historical development.

General Surgery↗

[Progressive hearing loss in children with hearing aids].

BACKGROUND: The possibility of hearing aid induced deterioration was first described in 1939 (Berry 1939, Holmgren 1939). Since then numerous studies discussed this problem controversely. However, it is undisputed that in cases of profound sensorineural hearing loss in childhood powerful hearing aids are necessary for maturation and auditory and speech development. An increase of progressive sensorineural hearing loss in the last three years in children with profound sensorineural hearing loss fitted with hearing aids (2 children in 1993, 6 children in 1996) drew our attention to this problem. METHOD: Over a period of four years, we collected the data of 16 children with progressive hearing loss. RESULTS: The comparison of the duration of the hearing aid use since fitting and the maximum output level fail to explain this increase. Moreover our strategy in hearing aid fitting remained unchanged during this period especially with regard to SSPL max. We also performed an analysis of the childhood disorders associated with the sensorineural hearing losses. This analysis provided no further information for the increase of hearing loss. CONCLUSION: There is no evidence that powerful hearing aids damage hearing and induce progressive sensorineural hearing loss in childhood. Therefore we believe that there is no need to change our hearing aid fitting strategy particularly with regard to the maximum output level up to 135 dB SPL measured in situ. The increase in the number of progressive cases in the last two years indicates the necessity of further investigations in this field.

Child↗

[No evidence for hearing aid-induced progressive pediatric hearing loss in the Cologne region].

Progressive hearing loss during childhood caused by a hearing-aid induced deterioration has been discussed controversely since 1939. However, it is unchallenged that in cases of profound sensorineural hearing loss in infancy and early childhood powerful hearing aids are necessary for auditory and speech development. Due to an increase of progressive hearing losses during the last 4 years, we discussed the possible causes and the probability of hearing aid induced progressions once more. Our study consists of two investigations: First, all patients since 1993 suffering from progressive hearing loss among all hearing impaired children in the department of Audiology and Pedaudiology of the ENT-Hospital of Cologne were taken into account. Second, all children of the Rheinische school for hearing impaired children were investigated. The evaluated data included the degree of severity and etiology of the hearing loss, the duration of the hearing aids use and the amplification of the hearing aid. 23 children were diagnosed with a progressive hearing loss in the period. We observed a massive increase over these years. No correlation between the duration of the hearing aid usage and the maximum output level was found. Furthermore, there was no difference between the causes of the hearing losses between the children of the school and the children with progressive hearing loss. At the moment, we do not see any reason to change our strategy for fitting hearing aids. The increase of progressive cases in the last 2 years should be the reason for further investigations in this field.

Adolescent↗

Airway endoscopy in the interdisciplinary management of acute epiglottitis.

INTRODUCTION: Acute epiglottitis (AE) continues to cause life-threatening airway obstruction in children. The aim of this retrospective study was to evaluate deficiencies in the management of AE, to clarify the role of airway endoscopy, and to establish the cause of death in this disease. MATERIAL: The subjects of our retrospective study were 24 children with AE treated in the paediatric intensive care unit (PICU) of the University of Cologne between 1980 and 1994. The records of all patients were reviewed. RESULTS: Laryngoscopy with fibreoptic or small rigid endoscopes allowed accurate diagnosis of AE, particularly in patients presented with atypical clinical signs. Furthermore, endoscopic information of the degree of inflammation were helpful in the critical decision, whether artificial airway was required. The number of patients managed without intubation increased (8% vs. 45%) since airway endoscopy became available in 1989. No evidence of beta-lactamase-producing strains of Haemophilus influenzae was observed. The most remarkable finding was the high mortality in AE (12.5%). Affected children were admitted in poor post-hypoxia conditions following outdoor cardiorespiratory arrest. CONCLUSION: The most decisive factor to decrease mortality seems to be timely appropriate presentation at referring centres, if AE is suspected or stridor remains unclear. Fibreoptic airway endoscopy represents a major step forward in the management of acute epiglottitis, and this requires close interdisciplinary collaboration between paediatricians, anaesthetists and otorhinolaryngologists.

Acute Disease↗

[Interdisciplinary therapeutic concept in severe bacterial infections of the central respiratory tract in childhood].

BACKGROUND: Apart from all advances made in the management of central airway infections, Acute Epiglottitis (AE) and Bacterial Tracheitis (BT) continue to be causes of life-threatening airway obstruction in children. The aim of this retrospective study was to evaluate deficiencies in the diagnostical protocol, to clarify the role of airway endoscopy in acute childhood stridor, and to identify current reasons for fatalities in these diseases. MATERIAL: In the observation period between 1980-92, we found 12 patients suffering from BT and 21 from AE managed in close cooperation of the involved disciplines at the pediatric intensive care unit of the University of Cologne. RESULTS: Laryngoscopy with fiberoptic or small rigid endoscopes allowed in awake cooperative children accurate diagnose of AE, and the exclusion of supraglottic inflammation in BT without complications. Furthermore, additional endoscopic information of the degree of inflammation was helpful in the next critical decision, whether artificial airway or rigid tracheobronchoscopy was required. Nasotracheal intubation was necessary in 76% of our patients, in one child tracheostomy was performed (5%). Premature extubation necessitating reintubation occurred in 33% of the children suffering from BT. In these patients, our method of advancing a flexible endoscope for tracheoscopy through the respiration tube failed because of a low tube diameter. Another remarkable finding was the high mortality in AE (14%). Affected children were admitted in poor post-hypoxia conditions following outdoor cardiorespiratory arrest. CONCLUSION: In the analysis of the clinical course we found three decisive turning points in managing the disorder; First, the confirmation of the correct admission diagnosis; second, the decision, as to whether an artificial airway should be established; and third, the proper time of extubation. The most decisive factor in decreasing mortality seems to be timely, appropriate presentation at referral centers if AE or BT is suspected. Clinically, progressive management of childhood stridor requires close cooperation between the Pediatric, Anesthesiologic, and ENT Departments. Fiberoptic endoscopy as a guide to current airway management is a major step forward and should be a part of every established protocol.

Airway Obstruction↗

[Rhinomanometric analysis of vestibular stenoses of the nose].

UNLABELLED: The distinction of the resistance in the nasal vestibule (valve area) and cavity (turbinates, septum deviations, crest, spine) is important for the settlement of the operative course in nasally impaired patients. Collapsed valves, free floating polyps, spines, and other turbulence producing factors in the nose are characterized in active anterior rhinomanometry (AAR) as decreased ¿percentage of flow increase¿ (deltaV150-300). This parameter allows no distinction between underlying anatomical factors. Other patients have increased resistance in the vestibule area that is static; rhinomanometry is unable to document these instances. The aim of this study was to investigate the influence of the vestibule dilator on nasal flow, and to determine if the diagnostic findings of AAR could be improved by the data obtained from the measurement with the dilator. METHODS: To prove the influence of the vestibule dilator on the nasal airflow, we determined typical rhinomanometric parameters in 20 nasally healthy and 40 nasally impaired persons with and without the dilator. For the measurements, we used a computer-aided rhinomanometer (Rhinodat K, Heinemann Medizintechnik, D-Hamburg). Tubular vestibule dilators were produced from silicon guide rails of tracheal tubes (Rüschelit, Fa. Rüsch, D-Kernen) and individually adapted to the patient's vestibule, ensuring dilation between the external ostium and the nasal isthmus. RESULTS: Active interior rhinomanometry revealed a significant effect of the vestibule dilator in repeated application (mean variation 3%). Total nasal flow showed a mean increase of about 48% with the dilator. In AAR, we found 5 patients with decreased deltaV150-300 below 25%. To demonstrate the presence of vestibule stenosis, we compared the changes of deltaV150-300 is AAR with and without dilator. In rhinomanometry with the dilator, deltaV150-300 of patients with vestibule stenosis showed physiological values. In these patients, mean difference of deltaV150-300 between conventional rhinomanometry and rhinomanometry with a vestibule dilator was significantly higher (47,2%) than observed in all other persons (3,8%). The static vestibule resistance in the total nasal resistance was obtained by calculating the difference between nasal flows with and without the dilator. CONCLUSIONS; Stenosis in the nasal vestibule could be proved and measured via active anterior rhinomanometry using a vestibule dilator. Data obtained from this method are helpful in functional assessment of nasally impaired patients, particularly to answer the question of whether the vestibule requires surgical treatment.

Adult↗

Airway endoscopy in the diagnosis and treatment of bacterial tracheitis in children.

Children with bacterial tracheitis present with the symptoms of viral laryngotracheobronchitis or epiglottitis, but do not respond to appropriate therapy for these diseases and frequently develop acute respiratory decompensation. Since the treatment and outcome of bacterial tracheitis differ so much from those of viral laryngotracheobronchitis and epiglottitis, prompt and accurate diagnosis is essential. The aim of this study was to evaluate the significance of different diagnostic characteristics in a group of eleven patients and to compare the results to those recently reported in the pediatric and otorhinolaryngologic literature. The present study suggests that reliable predictive factors do not exist for bacterial tracheitis. No single clinical, radiological or laboratory feature was a reliable diagnostic predictor for bacterial tracheitis, nor was it any combination of these features. The only diagnostic procedure to distinguish bacterial tracheitis accurately and promptly from other forms of acute obstructive upper airway diseases was direct laryngo-tracheo-bronchoscopy. Following endoscopic removal of all tracheal secretions and pulmonary toilet, nasotracheal intubation provides sufficient airway maintenance and obviates the need for tracheostomy. Endoscopy is thus diagnostic and therapeutic at the same time. If bacterial tracheitis is suspected a direct laryngoscopy and rigid tracheobronchoscopy should be performed under general anesthesia, as prompt diagnosis and adequate treatment are essential to survival. The cultures of the purulent tracheal secretions frequently revealed Staphylococcus aureus in combination with various pathogens, particularly the involvement of Pseudomonas aeruginosa was noted in two patients. Our data imply a susceptibility of children with Down's syndrome or immunodeficiency to bacterial tracheitis.

Acute Disease↗

Contamination of intravenous infusion systems--the effect of changing administration sets.

Intravenous administration sets were changed at varying time intervals between every 24 h and 120 h in 387 patients. The rates of intraluminal contamination of the cannulae and of local inflammation were measured in relation to the time interval between changing sets. There was no correlation between phlebitis and intraluminal contamination, but a significant association was found between phlebitis and fever, infusion of potassium at greater than 10 mmol l-1, Venflon type 140 and infusion of blood or intralipid. No correlation was found between septicaemia and intraluminal contamination of the infusion systems. Contamination of cannulae increased slightly with time, but this was not statistically significant. We conclude that there will be no clinical benefit by daily changing of administration sets, compared with changing up to every fifth day.

Blood Transfusion↗

Resection of gastrinoma in the Zollinger-Ellison syndrome.

Patients with the Zollinger-Ellison syndrome have been managed by total gastrectomy and more recently, by the use of H2-receptor antagonists. An alternative approach has been to identify those who might be cured by excision of a pancreatic islet-cell tumor without removal of the stomach. The course of such a patient is reported. A 40-yr-old man with massive gastric hypersecretion, acid-peptic disease, diarrhea, and elevated serum gastrin was treated by excising a pancreatic gastrinoma. Serum gastrin and gastric secretion became and have remained normal for 7 yr. Symptoms ceased and provocative tests with secretin and calcium have remained normal. Three additional patients with Zollinger-Ellison syndrome in whom pancreatic islet-cell tumor resection alone has resulted in long-term cures have been identified. All were middle-aged men with severe diarrhea. These successes, the availability of techniques that permit early identification and localization of gastrinomas, and the advent of H2-receptor antagonists that can control gastric hypersecretion without gastrectomy must be considered in managing patients with gastrinomas.

Adult↗