PubMed Health⌕ Search

Biomedical subjects

G Shanks

Publications and source records attributed to G Shanks.

5 recordsLinked to original sources
PubMed1998

Tackling the "dropped nucleus".

PURPOSE: To summarize and analyse the results of our experience in treating patients with a "dropped nucleus". METHODS: The case records of nineteen patients who underwent surgery for a "dropped nucleus" at the Ophthalmology Departments of Sahlgren's University Hospital, Gothenburg, and Orebro Medical Centre, Orebro, Sweden during 1994 were retrospectively reviewed to determine the mode of treatment used and the results of surgery. The frequency of this complication was also calculated for Sweden as a whole with the help of the National Cataract Register. RESULTS: The lens was successfully removed in all eyes. No retinal breaks or detachments were present at vitrectomy or follow-up. One eye was lost to panophthalmitis 11 days after the vitrectomy; the remaining 18 eyes showed a favourable outcome. CONCLUSION: The loss of a crystalline lens to the vitreous during cataract surgery is a severe complication. We recommend that an experienced vitreoretinal surgeon should be consulted at an early stage.

Aged↗
PubMed1997

Long-term results of macular pucker surgery.

PURPOSE: Macular pucker patients were re-examined 16-90 months after surgery (mean 72 months) to evaluate visual acuity, metamorphopsia, and complications, with particular reference to cataract development. Surgery had been performed on 48 eyes in 46 patients, 31 eyes having a primary, and 17 eyes a secondary macular pucker. RESULTS: At the 6-month control 65% of the eyes with a primary macular pucker and 35% of the eyes with a secondary macular pucker exhibited an improved visual acuity defined as doubling or more of the visual angle. At the last control 57% of the primary group and 33% of the secondary group had a visual acuity which still exceeded the preoperative value. At the final examination a cataract progression was observed in 22/28 (79%) of the primary group and 8/14 (57%) of the secondary group. In the primary group 11% and in the secondary group 36% of the eyes suffered a retinal detachment. All cases were successfully treated and none were followed by visual deterioration. CONCLUSION: The improvement in visual quality after macular pucker surgery appears to be long-standing, if not permanent, especially in primary cases. In those eyes in which a decrease in visual acuity is observed, the most frequent cause is cataract development.

Cataract↗
PubMed1991

Haemodynamic responses to psychosocial stress during the menstrual cycle.

1. The haemodynamic effects of hormonal changes during the menstrual cycle were examined in 11 normotensive women (age 20-46 years). The subjects were studied on days 2-8 (follicular phase) and days 18-26 (luteal phase) in a randomized order. A standardized mental stress test and a 24 h recording of ambulatory blood pressure and heart rate were performed. 2. Pre-stress resting levels of heart rate and blood pressure were similar during the two phases of the menstrual cycle. 3. During mental stress, the heart rate response was significantly greater during the luteal phase than during the follicular phase (14.7 versus 9.7 beats/min; P less than 0.05). 4. Blood pressure, plasma catecholamine concentrations and subjective stress experience increased significantly in response to stress, without any significant differences between the two phases. 5. During 24 h ambulatory monitoring, higher levels of systolic blood pressure and heart rate were observed in the luteal phase than in the follicular phase (P less than 0.005 and P less than 0.0001, respectively). 6. These data indicate that cyclic variations in female sex hormones not only affect systolic blood pressure and heart rate, but also alter the haemodynamic responses to psychosocial stress.

Adult↗