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Biomedical subjects

S Wheatcroft

Publications and source records attributed to S Wheatcroft.

8 recordsLinked to original sources
PubMed1994

Acute angle closure glaucoma: relative failure of YAG iridotomy in affected eyes and factors influencing outcome.

The treatment of acute angle closure glaucoma has been influenced by the development of the YAG laser and its ability to perform iridotomies as an outpatient procedure. In this retrospective study the results of YAG iridotomy were compared with surgical peripheral iridectomy. When compared with surgical peripheral iridectomy patients, YAG iridotomy patients were at greater risk of proceeding to further surgery, with this risk being significantly associated with increasing duration of attack. The authors suggest that in selected cases, surgical iridectomy should be given consideration as a primary procedure.

Acute Disease↗
PubMed1993

Reduction in mydriatic drop size in premature infants.

In a prospective study of 26 premature infants, 5 microliters microdrops were compared with standard 26 microliters eye drops of cyclopentolate 0.5% and phenylephrine 2.5%. There was no statistical difference in pupil dilatation. The 5 microliters microdrops have potentially fewer adverse effects in premature infants.

Cyclopentolate↗
PubMed1992

Treatment of glaucoma following penetrating keratoplasty with transscleral YAG cyclophotocoagulation.

Thirteen patients with refractory glaucoma following penetrating keratoplasty were treated with 180 degree transscleral Neodymium: YAG cyclophotocoagulation. Intraocular pressures below 21 mmHg were achieved in nine patients (69%) with a mean follow up of 19.8 months. Multiple treatments were required in six patients and graft decompensation occurred in five. No patient developed hypotony. Transscleral YAG cyclophotocoagulation is a useful alternative to further surgery in some patients with glaucoma following penetrating keratoplasty.

Adult↗
PubMed1989

Circadian rhythm of serum cytidine deaminase in patients with rheumatoid arthritis during rest and exercise.

Circadian rhythm of serum cytidine deaminase and C reactive protein was assessed in 11 inpatients with rheumatoid arthritis who were crossed between 24 hours of bed rest and 24 hours of normal ward activity. Blood was taken at six hourly intervals and the results analysed by fitting sine waves with an assumed period of 24 hours to the measured concentrations. Cytidine deaminase after activity, but not at rest, showed circadian variation, with a 24 hour mean level of 17.4 units (normal 3-13 units) and an amplitude of 1.1 units. The circadian variation, defined as the curve's peak to trough difference as a percentage of the 24 hour mean, was 12.3% and occurred at 1208 hours. C reactive protein showed no significant circadian rhythm, in keeping with published findings. The timing of the peak in serum cytidine deaminase concentrations after a period of morning physiotherapy, but not during the bedrest morning, suggests that exercise accounts for the circadian rhythm, probably by increasing the lymphatic clearance from inflamed joints.

Adult↗