Martha Welsh

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A series of 427 patients with congenital dacryostenosis involving 572 eyes was seen at the Children's Hospital of Philadelphia. All patients were treated conservatively with antibiotics and massage prior to decision by the parents to request probing. Congenital dacryostenosis, as well as resolution of symptoms, were confirmed by clinical examination and use(More)
The soybean cyst nematode (SCN), Heterodera glycines, causes economically significant damage to soybeans (Glycine max) in many parts of the world. The cysts of this nematode can remain quiescent in soils for many years as a reservoir of infection for future crops. To investigate bacterial communities associated with SCN cysts, cysts were obtained from eight(More)
Previous work has suggested possible influences of ovarian hormones on evoked potentials in the auditory system. The aim of this project was to study the effects of ovariectomy and subsequent administration of estrogen replacement on the auditory brainstem response and the middle latency response. Groups of 90 day-old Long-Evans hooded rats were(More)
Abstract This study investigated strain-dependent variability in Escherichia coli survival in soil, and strain-dependent responses to variations in some soil conditions. Collections of E. coli were isolated from swine manure slurry, and from manured soil following 6 days of incubation in the laboratory. The bacteria were fingerprinted by enterobacterial(More)
One thousand five hundred twenty-one patients (2,038 eyes) with congenital nasolacrimal duct obstruction were reviewed at The Children's Hospital of Philadelphia. Of these, 174 patients with congenital dacryostenosis involving 192 eyes underwent polymeric silicone (Silastic) intubation to treat the dacryostenosis. All patients had undergone at least several(More)
We use an ion-exchange column-chromatographic technique for separating creatine kinase isoenzymes in serum, and occasionally observe what appears to be sustained increase in the MB fraction. Most patients whose sera show such behavior have myocardial disease, but not necessarily a recent myocardial infarction. Electrophoretic analysis of a small sampling of(More)
The interference of atypical creatine kinase (CK; EC with anion-exchange methods for the measurement of the CK-MB isoenzyme is now firmly established. False-positive results from this source are much more common than interferences caused by the BB isoenzyme. Atypical CK, at least in some patients, does not appear to be a genetic variant, nor could(More)
A 10-year-old male developed a chronic orbital infection following penetrating trauma and retention of an orbital foreign body. Diagnosis of infection with Pseudallescheria boydii (Petriellidium boydii) was made by fungal smear and culture. Sensitivity tests indicated the organism was resistant to amphotericin B. Surgical debridement of the inferior orbit(More)
Strabismus, ptosis, lateral canthal dystopia, nasolacrimal obstruction, and cranial nerve palsy were noted preoperatively in 32%, 21%, 14%, 12%, and 9% of 34 patients, respectively, undergoing ophthalmologic evaluation prior to unilateral orbital advancement for plagiocephaly. Thirty-two percent of the patients had normal preoperative ocular and adnexal(More)
Recent developments in imaging techniques now allow reconstruction of actual three-dimensional images from computed tomographic data. This article discusses the basic concepts involved in three-dimensional imaging and reviews its potential as a diagnostic and management tool for the clinical ophthalmologist. New computer techniques allow review of actual(More)