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Biomedical subjects

D Zwillenberg

Publications and source records attributed to D Zwillenberg.

12 recordsLinked to original sources
PubMed1991

Delayed pharyngoesophageal perforation: a complication of anterior spine surgery.

Stabilization of the cervical spine is often accomplished via an anterior cervical approach. Bone grafts and/or plates and screws are used to achieve stabilization. Injuries to the pharynx and esophagus are known complications in anterior exposure of the cervical spine. These injuries are manifest in the early postoperative period. Reports of late perforations are very rare. We present four cases of delayed injury to the pharynx and esophagus that resulted in abscess or fistula. We postulate that graft displacement with resulting erosion was responsible for these serious complications. Postoperative odynophagia in patients who undergo anterior cervical fusion warrants evaluation of the bone graft location. Early surgical intervention and repair may decrease prolonged morbidity in these patients.

Abscess↗
PubMed1990

Diagnosis and management of cleft larynx. Literature review and case report.

Laryngeal cleft is a rare congenital laryngeal anomaly that has been recognized more frequently in recent years. It can be a serious problem, consisting of separation of the arytenoids with a fissure resulting from a defect in the fusion of the posterior cricoid cartilage lamina. Dysphagia with aspiration of food is commonly seen with resultant bouts of pneumonia. Surgical repair has been successful in a handful of cases. This communication will review our institution's recent handling of a case successfully treated. The epidemiology, embryology, classification, diagnosis, and suggested treatment regimen for laryngeal cleft will also be outlined.

Humans↗
PubMed1989

Computed tomography of salivary glands in Sjögren's syndrome.

Three cases of Sjögren's syndrome, one with uncomplicated disease, and the other two complicated by pseudolymphoma and malignant lymphoma, respectively, are presented. Computed tomography can provide information useful in the diagnosis, detection of complications, and, therefore, management of Sjögren's syndrome.

Aged↗
PubMed1989

Decruitment and abnormal auditory adaptation.

1. Factual findings related to decruitment have been presented. 2. Decruitment is considered to be a manifestation of eighth nerve involvement indicating abnormal adaptation. 3. Loudness match as a quick screening test may be applied in cases of suspected abnormal auditory adaptation.

Adaptation, Physiological↗
PubMed1988

Treatment of neonatal necrotizing tracheobronchitis with extracorporeal membrane oxygenation and bronchoscopy.

Necrotizing tracheobronchitis has recently been described as a complication of mechanical ventilation of newborns with respiratory failure. Despite the use of bronchoscopy, 45% of the reported patients to date have died. In this study, we report the use of extracorporeal membrane oxygenation (ECMO) to stabilize two patients with necrotizing tracheobronchitis. While supported by bypass, both patients underwent prolonged bronchoscopies with removal of extensive amounts of tracheal debris. ECMO provided efficient oxygenation in the face of near total airway occlusion, and permitted far more extensive bronchoscopic debridement and lavage than would have been possible if the lungs were required for oxygenation. In addition, ECMO provided a period of lung "rest" during which ventilator settings were reduced, thus minimizing further barotrauma and allowing for lung and airway healing. Both patients recovered without significant respiratory sequelae. ECMO and bronchoscopy are effective forms of therapy for patients with life-threatening necrotizing tracheobronchitis when conventional modalities of treatment have failed.

Bronchitis↗
PubMed1986

Non-epidermoid carcinoma of the larynx: the Thomas Jefferson University experience.

Nonepidermoid cancers of the larynx appear with consistency in large series of laryngeal tumors. We reviewed 1135 laryngeal cancers seen over a 24-year period at Thomas Jefferson University Hospital and found a 1.7% incidence. This is similar to several other large series. These patients are presented in terms of their sex, age, race, clinical presentations, therapies, and outcomes, and a review of these unusual tumors is given. The recognition of such lesions is important because many require different therapies and have different prognoses than their squamous cell counterparts. The relatively infrequent occurrence of these tumors makes the availability of controlled clinical studies extremely difficult.

Adenocarcinoma↗
PubMedDate not supplied

Measures of middle ear admittance during experimentally induced changes in middle ear volume in the hamster.

The relation between middle ear admittance measured at the tympanic membrane and middle ear volume was studied in adult hamsters. A modified tympanometric procedure was used to measure complex admittance at eight test frequencies. Middle ear volume was varied by injecting small amounts of water into the bulla cavity. As bulla volume decreased, the value of admittance magnitude also decreased. The measured values of admittance magnitude could be accurately predicted by the equation for admittance magnitude until the bulla was about 70% filled. The results confirm that measures of middle ear admittance reflect the volume of the middle ear cavity as would be expected of a pure compliance. Where such measures are available in man, they might be used to predict the degree of fluid intrusion into the middle ear cavity.

Acoustic Impedance Tests↗