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Biomedical subjects

A R Bellows

Publications and source records attributed to A R Bellows.

44 records · Page 3Linked to original sources
PubMed1976

Suspected multiple primary tumors of the lacrimal and parotid glands.

A 63-year-old man had apparent primary tumors of the lacrimal and parotid glands. Initially an adenocarcinoma of ectopic lacrimal gland origin was suspected following biopsy of a mass in the left orbit. The patient received radiation therapy to this area and showed no recurrence of the original lesion or development of other tumors for a period of 27 months. At that time, the patient returned with a mass in the left preauricular area. This was surgically resected and found to be an adenocarcinoma of the left parotid gland. Both tumors were histologically similar, mucin-secreting adenocarcinomas. There has been no further evidence of tumor growth in an additional three-year period.

Adenocarcinoma, Mucinous↗
PubMed1975

Ocular manifestations of juvenile rheumatoid arthritis.

We followed 210 cases of juvenile rheumatoid arthritis closely for eleven years. Thirty-six of the 210 patients (17.2%) developed iridocyclitis. Iridocyclitis was seen most frequently in young female patients (0 to 4 years) with the monoarticular or pauciatricular form of the arthritis. However, 30% of the patients developed uveitis after 16 years of age. Although 61% of patients had a noncontributory ocular history on entry, 42% had active uveitis on entry. Our approach was effective in detecting uveitis in new cases and exacerbations of uveitis in established cases. Forty-four percent of patients with uveitis had one or more identifiable signs or symptoms, such as red eye, ocular pain, decreased visual acuity, or photophobia, in order of decreasing frequency. Even after early detection and prompt treatment, 41% of cases of uveitis did not respond to more than six months of intensive topical treatment with corticosteroids and mydriatics. Despite this, there was a dramatic decrease in the 50% incidence of blinding complications of uveitis cited in earlier studies. Cataract and band keratopathy occurred in only 22 and 13% of our group, respectively. We used chloroquine or hydroxychloroquine in 173 of 210 cases and found only one case of chorioretinopathy attributable to these drugs. Systemically administered corticosteroids were used in 75 of 210 cases; a significant number of posterior subcapsular cataracts was found. Typical keratoconjunctivitis sicca developed in three of the uveitis cases. This association with uveitis and JRA was not noted previously. Surgical treatment of cataracts, band keratopathy, and glaucoma achieved uniformly discouraging results.

Adolescent↗
PubMedDate not supplied

Open-angle glaucoma secondary to blood clot in the Schlemm's canal following scleral buckle surgery and its treatment with tPA.

Obstruction of the episceral venous system can present with glaucoma. We present two patients who were referred to us for management of acute glaucoma with presumed episceral venous compression. The first patient had open-angle glaucoma with probable elevated episcleral venous pressure and blood in the Schlemm's canal, following a 360 degrees scleral buckle surgery. The second patient had open-angle glaucoma from delayed peribulbar hemorrhage following uncomplicated cataract surgery with blood in the Schlemm's canal. Both patients were successfully treated with intracameral injection with tissue plasminogen activator (tPA).

Aged↗
PubMedDate not supplied

Comparison of double-plate Molteno and Ahmed glaucoma valve in patients with advanced uncontrolled glaucoma.

BACKGROUND AND OBJECTIVE: To compare double-plate Molteno (DPM) with the Ahmed glaucoma valve (AGV) in the treatment of eyes with complicated glaucoma. PATIENTS AND METHODS: This matched, retrospective, case-control study was based on diagnosis, number of previous operations, and age. There were 30 patients in each group and only patients with a minimum of 6 months follow up were included. Double-plate Molteno or Ahmed glaucoma valve insertion was performed on each patient to control intractable glaucoma. Success was defined as IOP <22 mm Hg and >4 mm Hg on the last two visits, a decrease of no more than 2 lines in the visual acuity, and no additional surgical intervention to control IOP. RESULTS: The Kaplan-Meier estimated probability of success at 12 and 24 months was 73% and 56% with DPM and 60% and 50% for AGV (P = 0.72). Mean IOP measured 13.36 +/- 5.2 mm Hg following DPM and 16.7 +/- 5.6 mm Hg following AGV at 12 months (P = 0.026) and 13.3 +/- 5.1 mm Hg with DPM and 19 +/- 5.8 mm Hg with AGV at 24 months (P = 0.009). Of the patients involved in the study, 83.5% exhibited hypertensive phase (HP) of AGV vs 43.5% of DPM (P = 0.04). AGV had a tendency to fail earlier (5 months +/- 7 following AGV vs 13 months +/- 13 following DPM, P = 0.07, t-test). Patients with either a second valve insertion or valve removal were 7/30 of AGV vs 1/30 in DPM (P = 0.05). Stent removal was needed by 10/30 DPM and 8/30 AGV had needling/5-FU. CONCLUSIONS: The percentage of patients free from failure was similar between the two groups at 36 months. DPM is associated with lower mean IOP in the long term compared to AGV.

Adolescent↗
PubMedDate not supplied

Bleb infections: clinically different courses of "blebitis" and endophthalmitis.

1. Researchers have recently introduced the term "blebitis" to describe a limited form of bleb-related infection (with infection and inflammation limited to the bleb and the peri-bleb area, with or without anterior chamber involvement) in contrast to the more classic form of endophthalmitis. 2. Bleb-related endophthalmitis is the virulent form of bleb-related infection in which patients present with rapidly worsening visual acuity, redness, and pain with diffuse conjunctival congestion, opalescent blebs (with or without epithelial defects) with intense fibrin and/or hypopyon in the anterior chamber, and florid vitritis. 3. Blebitis and bleb-related endophthalmitis are two distinct bleb-related infections, each with different presentations, prognoses, and outcomes. It is important that clinicians recognize this and treat patients accordingly.

Adult↗