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Biomedical subjects

A M Nahum

Publications and source records attributed to A M Nahum.

At least 19 recordsLinked to original sources
PubMed1978

The dilemma of the second surgeon.

The dilemma of the second surgeon is created when a patient is seen who has received advice and/or treatment by a colleague in the same specialty. The problem is compounded when conflicting opinions as to diagnosis, treatment, and results occur. This is discussed in the context of providing optimal care, maintaining effective communication, and avoiding the obvious pitfalls.

Diagnosis↗
PubMed1977

Finding the missing information in cancer statistics.

The current cancer literature is imprecise and confusing. This hampers the ability to draw meaningful conclusions regarding diagnosis and treatment. It is suggested that all future reporting of statistics contain the following features: (1) discussion of case selection criteria; (2) use of TNM system for case classification; (3) listing of minimal treatment details; (4) explanation for length of follow-up used; (5) standardized terms for evaluation (relating these to individual TNM classification); and (6) listing of all failures by standardized terms. It is proposed that editors of journals and organizers of meetings reject all papers that do not meet these criteria.

Bibliographies as Topic↗
PubMed1977

The case for elective prophylactic neck dissection.

The possibility of improving the cure rate of cancer of the head and neck by radical neck dissection of the clinically negative neck (elective neck dissection) continues to pose a therapeutic dilemma. This paper seeks to review the available information, analyze relevant aspects of the issue and attempt to draw conclusions which will be helpful both to physicians and their patients. The discussion is confined to squamous carcinoma of the larynx, pharynx, and oral cavity.

Carcinoma, Squamous Cell↗
PubMed1977

Mandibular trauma: secondary problems in reconstruction.

Cosmetic and functional restoration of the fractured mandible in the great majority of cases is the sine qua non of therapeutic success. Not only must an acceptable low complication rate be obtained, but when present, their complex nature must be understood from the onset. Successful treatment of complications is a multifaceted problem requiring planned, interdisciplinary, often times staged reconstruction. The radiologist and dental prosthodontist make valuable contributions towards the surgeon's ultimate rehabilitation of the patient. A three year experience of 111 mandibular fractures treated on the UCSD Otolaryngology Service is characterized. Sixteen complications nine of which were seen after initial treatment elsewhere provide the focus of this report. Special emphasis is given to the pre-treatment planning and surgical techniques necessary to correct malunion and nonunion. Particular advantages achieved by the use of osteogenic autogenous marrow, cellulose acetate filters and Vitallium (chrome cobalt) trays are detailed.

Adult↗
PubMed1976

Mandibular fracture complications.

This paper presents the authors' experiences with 111 treated mandibular fractures and 16 cases of complication. Pertinent data on the fresh fractures are given, but the major part of the study deals with cause, diagnosis, and treatment of the complications of mandibular fractures. These are divided into four categories-infection, nonunion, malunion, and temporomandibular joint ankylosis, although only infection and temporomandibular joint ankylosis are included here. Unique mandibular fracture complications are reviewed.

Adolescent↗
PubMed1976

Laryngeal papillomatosis: immunologic and viral basis for therapy.

The distressing nature of laryngeal papillomatosis and lack of clinical progress in its treatment are reviewed. Presently accepted and investigative methods of therapy are reviewed with special attention being given to immune therapy. Support for the concept of a viral etiology is discussed and other etiologic agents considered. Known and possibly significant roles of wart virus antibodies are discussed and the importance of complex interplay between maternal and fetal immune systems explored as a possible explanation for some puzzling aspects of laryngeal papillomatosis. Finally, a proposed experimental design is outlined, the purpose of which is to provide a useful animal model to investigate immune changes in laryngeal papillomatosis, as well as effects of surgical or medical therapy.

Adult↗
PubMed1975

Medial orbital wall fracture with rectus entrapment.

Two cases of medial orbital fracture with medial rectus muscle entrapment are reported, one a bona fide blowout fracture. Review of the literature reveals six previous cases. Clinically, patients complain of diplopia with lateral gaze and forced duction tests confirm medial rectus entrapment. Radiographic confirmation is best obtained with hypocycloidal tomography. Surgical therapy is indicated for diplopia or enophthalmus.

Adult↗
PubMed1975

The biomechanics of facial bone fracture.

Selected facial bone locations were impacted to simulate clinical trauma conditions. Locations selected included the nose, zygoma, mandible, maxilla, and frontal bone. The experiment clearly delineate tolerance bands for the facial bones for both sexes. These data should permit the improved design of injury producing structures.

Biomechanical Phenomena↗
PubMed1975

The biomechanics of maxillofacial trauma.

Current advances in vehicle design include nonlacerative windshields and energy-absorbing instrument panels and interior structures. In order to prevent more severe injuries, it may be necessary to accept minor soft tissue trauma and nasal fractures, but it should be possible to prevent almost all other facial trauma at reasonable impact speeds.

Accidents, Traffic↗
PubMedDate not supplied

The surgical biopsy.

A cost-benefit analysis of biopsy techniques for deep cervical lesions reveals that the aspiration biopsy is superior in terms of cost, speed, and morbidity but inferior in accuracy. Aspiration is most accurate for the diagnosis of metastatic carcinoma in cervical lymph nodes. An early diagnosis of malignancy by needle aspiration can be of benefit in several stages of patients management.

Biopsy, Needle↗