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Biomedical subjects

C W Gross

Publications and source records attributed to C W Gross.

At least 19 recordsLinked to original sources
PubMed1995

Modified transnasal endoscopic Lothrop procedure: further considerations.

The Lothrop procedure resects the medial frontal sinus floor, superior nasal septum, and intersinus septum to create a large frontonasal communication. However, the external approach often allowed medial collapse of soft tissue and stenosis of the nasofrontal communication. We describe a modified transnasal endoscopic Lothrop procedure in which drills are used for cases in which frontal recess exploration fails to relieve obstruction of the frontal sinus. The lateral bony walls are preserved, and medial collapse does not occur. The mucosa of the posterior table and posterior nasofrontal duct is preserved, and a single common frontal opening is created. We have found this approach to be safe and reliable. Fourteen patients have undergone this procedure without complication, achieving resolution or improvement of their symptoms and maintaining wide patency of the frontonasal opening. We recognize that long-term follow-up will be required but remain encouraged with our favorable results to date.

Adult↗
PubMed1992

Revision functional endonasal sinus surgery.

Revision functional endonasal sinus surgery (FESS) is recommended for patients whose symptoms of chronic or recurrent sinusitis persist despite primary FESS, long-term maximal medical therapy, and no sign of other abnormalities as demonstrated by computed tomography. After analyzing the charts of 673 patients who underwent primary FESS, we reviewed the 63 cases of revision surgery performed between 1986 and 1989. This retrospective analysis presents the management and outcome of 16 children (less than 16 years) and 47 adults who had revision FESS. The overall success rate of revision FESS was 78%, with no major complications, reflecting the improved management of sinus disease offered by this procedure.

Adolescent↗
PubMed1991

Schwannomas of the paranasal sinuses. Case report and clinicopathologic analysis.

Schwann's cell tumors are common neoplasms arising from the neural sheath of autonomic, cranial, or peripheral nerves. We describe a case of destructive malignant schwannoma of the right ethmoid and sphenoid sinuses. The tumor was successfully treated by surgical excision, external radiotherapy, and radon seed implants. The patient remains symptom free 3 years after therapy ended, emphasizing the previously unrecognized benefits of radiotherapy for these types of tumors. The value of endoscopy in diagnosing and following schwannomas of the nasal and paranasal sinuses is highlighted in our review of the clinicopathologic features and radiologic findings of this tumor.

Ethmoid Sinus↗
PubMed1990

Morbidity in pediatric tonsillectomy.

Tonsillectomy is one of the most common operations performed in the pediatric age group. Previous literature on morbidity in tonsillectomy has dealt predominantly with postoperative hemorrhage. Children undergoing tonsillectomy were divided in a prospective and random fashion into eight study groups to evaluate postoperative morbidity as it relates to the surgical technique used (electrocautery, dissection, KTP laser), methods of hemostasis (electrocautery, suture ligature), and the use of postoperative antibiotics. A total of 80 children were evaluated. Using the parameters of morbidity as defined in this study, blunt dissection tonsillectomy using suture ligatures for hemostasis, without postoperative antibiotics was found to result in the least morbidity in the pediatric age group.

Adolescent↗
PubMed1989

Adipose plug myringoplasty: an alternative to formal myringoplasty techniques in children.

Adipose myringoplasty is presented as a simple and cost-effective technique in managing small tympanic membrane perforations in children. A review of 76 fat plug myringoplasties performed on 62 children with drum perforations over a 15-year period was done. Fifty-nine myringoplasties were postinflammatory and/or after extrusion of pressure-equalizing (PE) tubes. Sixteen were residual perforations following temporalis fascia tympanoplasty, and one was posttraumatic perforation. Criteria for selection, operative technique, and results are discussed.

Adipose Tissue↗
PubMed1989

Functional endonasal sinus surgery (FESS) in the pediatric age group.

Functional endonasal sinus surgery has become a popular mode of surgical treatment for sinus disease in the United States. The literature has primarily addressed its use in the adult population. We present our series of 57 children who underwent functional endonasal sinus surgery. The children ranged in age from 3 to 15 years. Follow-up was from 3 to 13 months. Fifty-four of the patients were treated for chronic or recurrent sinus infections. Three patients were treated for complications of acute sinusitis. All patients tolerated the procedure well, and there were no major complications. We conclude that functional endonasal sinus surgery is a safe procedure in the pediatric age group. Although postoperative follow-up in the series was very short, early results appear encouraging. The technical approach is similar to that used in the adult procedure. The pediatric procedure, however, requires a follow-up nasal endoscopy under general anesthesia to achieve optimal results.

Adolescent↗
PubMed1989

Malignant germ cell tumors of the head and neck in childhood.

From 1962 through 1987, four children were diagnosed at our institution with primary germ cell malignancies of the extracranial head and neck regions. Ages of the children ranged from 2 to 44 months. Histologic findings included 2 yolk sac carcinoma (endodermal sinus tumor), 1 malignant teratoma with nephroblastoma (Wilm's tumor), and 1 malignant teratoma with neuroblastoma (primitive neuroectodermal) components. Complete clinical and surgical staging was performed to rule out additional sites of disease. All patients initially underwent either biopsy or, when technically feasible, resection. Three patients received combination chemotherapy and two received irradiation. Three patients died of progressive disease. One patient who had yolk sac carcinoma of the temporomandibular region is alive and free of disease 40 months after therapy. Complete surgical resection is indicated for teratomatous tumors, if technically feasible. The malignant components of these tumors are sensitive to both chemotherapy and irradiation and combined therapy may be beneficial.

Cervical Vertebrae↗
PubMed1989

Pediatric functional endonasal sinus surgery.

Functional endoscopic sinus surgery has been used to treat children in whom medical and traditional surgical therapy have failed. Special approaches are necessary in children because of the small size of the paranasal sinuses. Modifications of the techniques used in adults that are appropriate for use in children are fully explained.

Child↗
PubMed1979

Long-term follow-up of tympanic neurectomy for sialorrhea.

Thirty-one patients who had undergone a bilateral tympanic neurectomy (sectioning of both Jacobson's nerve and the chorda tympani) for sialorrhea are evaluated after two years (ranging from 24--45 months). Drooling control improved in 74%. There was a significant difference of improvement in the group where a diligent search was made to sever all branches of the tympanic plexus. A 50% improvement was attained in two failures of a tympanic neurectomy who underwent transposition of Stenson's ducts into the tonsillar fossa.

Ear, Middle↗
PubMed1978

Oxygen concentrations received from commonly used delivery systems.

The mean inhaled oxygen concentrations received from five devices commonly used for delivering supplemental oxygen to spontaneously breathing patients were determined. The ideal technic for the determination would require direct measurement of mean alveolar oxygen concentration. Since this is not feasible, we plotted arterial oxygen tensions against known inhaled oxygen concentrations in volunteers. The fitted equations were then used to determine mean inhaled oxygen concentrations received by the volunteers while breathing from each device. The volunteers received accurately determined oxygen concentrations from those devices employing the Venturi principle at settings of 40% or less. The concentrations received did not coincide with the settings with the Venturi devices above 40%, and highly variable with the non-Venturi devices. Variability in the concentrations received was related to the fact that the volunteers' peak inspiratory flow rates exceeded total gas flows delivered by the devices.

Humans↗
PubMed1978

Blastomycosis of fronto-ethmoid complex.

Blastomycosis in children is relatively infrequent. Further, osteomyelitis of the frontal bone, which prior to the antibiotic era occurred more frequently and was mostly due to pyogenic cocci, is rare today. We described a case of frontal osteomyelitis in a child due to blastomycosis which occurred in the absence of frontal sinuses. To our knowledge this rare combination of factors has not previously been reported.

Blastomycosis↗
PubMed1977

Proplast in the middle ear and oval window of cats.

Poly(tetrafluoroethylene) carbon fiber implant material (Proplast), an all-plastic material, was evaluated for use in otologic surgery. Response to the implant was studied in the middle ear and vestibule of 14 cats by placing the Proplast in the oval window after stapedectomy. After a one year follow-up, it appears that Proplast was tolerated well, causing no inflammatory reaction in either the vestibule or cochlea, or in the middle ear cavity. Fibrous tissue ingrowth was found throughout the implant, and a fibrous tissue membrane covered both the vestibular and the tympanic surfaces of the Proplast. Being well tolerated by both middle ear and inner ear tissues, this porous, all-plastic material offers several otologic applications.

Animals↗
PubMed1977

Transtympanic neurectomy: a solution to drooling problems.

Thirty patients underwent transtympanic neurectomy because of severe drooling problems. Most of the group had cerebral palsy and/or mental retardation and the remainder had suffered brain damage. Their ages ranged from four to 56 years. There was improvement in drooling in 87 per cent of the group 14 months post-operatively, and there was no serious, irreversible complications. In this series of patients, transtympanic neurectomy has proved to be a safe and effective procedure for the control of drooling.

Adolescent↗
PubMed1977

Mucocutaneous lymph node syndrome: a new clinical entity.

A six-year-old black male presented to the Otolaryngology service with fever, sore throat and an inflammatory mass in the left neck. Forty-eight hours later he developed the full blown clinical picture of mucocutaneous lymph node syndrome (MLNS). This is a relatively new clinical entity, well known in Japan, but only recently described in the English literature. The following case report and discussion will serve to alert the otolaryngologist to this disease.

Child↗