Home  About us  Contact
 

Retinal Haemorrhages (retinal + haemorrhage)

Distribution by Scientific Domains
Medical Sciences100%

Selected Abstracts

Retinal haemorrhages in shaken baby syndrome

ACTA OPHTHALMOLOGICA, Issue 4 2009
Matti Kontkanen
No abstract is available for this article. [source]

Extreme altitude mountaineering and Type 1 diabetes; the Diabetes Federation of Ireland Kilimanjaro Expedition

DIABETIC MEDICINE, Issue 9 2001
K. Moore
Abstract Aims To examine the effects of extreme altitude mountaineering on glycaemic control in Type 1 diabetes, and to establish whether diabetes predisposes to acute mountain sickness (AMS). Methods Fifteen people with Type 1 diabetes and 22 nondiabetic controls were studied during the Diabetes Federation of Ireland Expedition to Kilimanjaro. Daily insulin requirements, blood glucose estimations and hypoglycaemic attacks were recorded in diaries by the people with diabetes. The performance of blood glucose meters at altitude was assessed using standard glucose solutions. Symptoms of acute mountain sickness were recorded daily by people with diabetes and by the nondiabetic controls using the Lake Louise Scoring Charts. The expedition medical team recorded the incidence of complications of altitude and of diabetes. The final height attained for each individual was recorded by the expedition medical team and verified by the expedition guides. Results The final altitude ascended was lower in the diabetic than the nondiabetic group (5187 ± 514 vs. 5654 ± 307 m, P= 0.001). The mean daily insulin dose was reduced from 67.1 ± 28.3,32.9 ± 11.8 units (P < 0.001), but only 50% of recorded blood glucose readings were within the target range of 6,14 mmol/L. There were few hypoglycaemic attacks after the first two days of climbing. Both blood glucose meters tested showed readings as low as 60% of standard glucose concentrations at high altitude and low temperatures. The Lake Louise questionnaires showed that symptoms of AMS occurred equally in the diabetic and nondiabetic groups. There were two episodes of mild diabetic ketoacidosis; two of the diabetic group and three of the nondiabetic group developed retinal haemorrhages. Conclusions People with Type 1 diabetes can participate in extreme altitude mountaineering. However, there are significant risks associated with this activity, including hypoglycaemia, ketoacidosis and retinal haemorrhage, with the additional difficulties in assessing glycaemic control due to meter inaccuracy at high altitude. People with Type 1 diabetes must be carefully counselled before attempting extreme altitude mountaineering. Diabet. Med. 18, 749,755 (2001) [source]

Telangiectasis as a cause of intra-schitic haemorrhage in optic disc pit maculopathy

ACTA OPHTHALMOLOGICA, Issue 1 2004
Shauna M. Quinn
Abstract. Purpose:, To present a patient with the novel finding of vascular telangiectasis as a cause of intra-schitic haemorrhage, occurring in optic disc pit-associated maculopathy. Methods:, A clinical history was detailed. Clinical examination included visual acuity assessment and slit-lamp microscopy. Fluorescein angiography was performed. Results:, A temporal optic disc pit, macular retinoschisis and a circumscribed detachment of the outer retinal layer and inner leaf holes were noted. A retinal haemorrhage extending into the schitic cavity was present, along with an associated vitreous haemorrhage. Fluorescein angiography showed telangiectatic vessels in association with the haemorrhage. Conclusion:, This is the first reported case of vascular telangiectasis as a cause of intra-schitic haemorrhage occurring in optic disc pit-associated maculopathy. [source]

,The evidence base for retinal haemorrhages in shaken baby syndrome'

DEVELOPMENTAL MEDICINE & CHILD NEUROLOGY, Issue 10 2008
Manoj V Parulekar MS FRCS
No abstract is available for this article. [source]

Extreme altitude mountaineering and Type 1 diabetes; the Diabetes Federation of Ireland Kilimanjaro Expedition

DIABETIC MEDICINE, Issue 9 2001
K. Moore
Abstract Aims To examine the effects of extreme altitude mountaineering on glycaemic control in Type 1 diabetes, and to establish whether diabetes predisposes to acute mountain sickness (AMS). Methods Fifteen people with Type 1 diabetes and 22 nondiabetic controls were studied during the Diabetes Federation of Ireland Expedition to Kilimanjaro. Daily insulin requirements, blood glucose estimations and hypoglycaemic attacks were recorded in diaries by the people with diabetes. The performance of blood glucose meters at altitude was assessed using standard glucose solutions. Symptoms of acute mountain sickness were recorded daily by people with diabetes and by the nondiabetic controls using the Lake Louise Scoring Charts. The expedition medical team recorded the incidence of complications of altitude and of diabetes. The final height attained for each individual was recorded by the expedition medical team and verified by the expedition guides. Results The final altitude ascended was lower in the diabetic than the nondiabetic group (5187 ± 514 vs. 5654 ± 307 m, P= 0.001). The mean daily insulin dose was reduced from 67.1 ± 28.3,32.9 ± 11.8 units (P < 0.001), but only 50% of recorded blood glucose readings were within the target range of 6,14 mmol/L. There were few hypoglycaemic attacks after the first two days of climbing. Both blood glucose meters tested showed readings as low as 60% of standard glucose concentrations at high altitude and low temperatures. The Lake Louise questionnaires showed that symptoms of AMS occurred equally in the diabetic and nondiabetic groups. There were two episodes of mild diabetic ketoacidosis; two of the diabetic group and three of the nondiabetic group developed retinal haemorrhages. Conclusions People with Type 1 diabetes can participate in extreme altitude mountaineering. However, there are significant risks associated with this activity, including hypoglycaemia, ketoacidosis and retinal haemorrhage, with the additional difficulties in assessing glycaemic control due to meter inaccuracy at high altitude. People with Type 1 diabetes must be carefully counselled before attempting extreme altitude mountaineering. Diabet. Med. 18, 749,755 (2001) [source]

Dural haemorrhage in non-traumatic infant deaths: does it explain the bleeding in ,shaken baby syndrome'?

NEUROPATHOLOGY & APPLIED NEUROBIOLOGY, Issue 1 2003
J. F. Geddes
J. F. Geddes, R. C. Tasker, A. K. Hackshaw, C. D. Nickols, G. G. W. Adams, H. L. Whitwell and I. Scheimberg (2003) Neuropathology and Applied Neurobiology 29, 14,22 Dural haemorrhage in non-traumatic infant deaths: does it explain the bleeding in ,shaken baby syndrome'? A histological review of dura mater taken from a post-mortem series of 50 paediatric cases aged up to 5 months revealed fresh bleeding in the dura in 36/50, the bleeding ranging from small perivascular haemorrhages to extensive haemorrhage which had ruptured onto the surface of the dura. Severe hypoxia had been documented clinically in 27 of the 36 cases (75%). In a similar review of three infants presenting with classical ,shaken baby syndrome', intradural haemorrhage was also found, in addition to subdural bleeding, and we believe that our findings may have relevance to the pathogenesis of some infantile subdural haemorrhage. Recent work has shown that, in a proportion of infants with fatal head injury, there is little traumatic brain damage and that the significant finding is craniocervical injury, which causes respiratory abnormalities, severe global hypoxia and brain swelling, with raised intracranial pressure. We propose that, in such infants, a combination of severe hypoxia, brain swelling and raised central venous pressure causes blood to leak from intracranial veins into the subdural space, and that the cause of the subdural bleeding in some cases of infant head injury is therefore not traumatic rupture of bridging veins, but a phenomenon of immaturity. Hypoxia with brain swelling would also account for retinal haemorrhages, and so provide a unified hypothesis for the clinical and neuropathological findings in cases of infant head injury, without impact or considerable force being necessary. [source]

The North Jutland County Diabetic Retinopathy Study (NCDRS)

ACTA OPHTHALMOLOGICA, Issue 4 2010
Clinically significant macular oedema, retinal lesions, visual acuity
Abstract. Purpose:, This study set out to map the associations between retinal lesions, visual acuity (VA) and the presence of clinically significant macular oedema (CSMO) in diabetes subjects. Methods:, This cross-sectional study comprised 656 type 1 and 328 type 2 diabetes subjects undergoing retinopathy screening in the County of North Jutland, Denmark. Numbers of specific retinal lesions were quantified from retinal photographic recordings. Associations between CSMO, number of specific retinal lesions and VA were established. The percentages of eyes with CSMO ascribed to retinal lesions were calculated. Results:, The presence of CSMO, number of specific retinal lesions and VA were all significantly associated. The parameter with the highest statistical association with CSMO measured by Spearman's correlation coefficient was hard exudates (type 1: 0.524; type 2: 0.715), followed by microaneurysms (type 1: 0.298; type 2: 0.508), retinal haemorrhages (type 1: 0.227; type 2: 0.595), cottonwool spots (type 1: 0.207; type 2: 0.259) and VA (type 1: , 0.137; type 2: , 0,175). Conclusions:, All retinal lesions are significantly associated with CSMO and together can predict for up to 42.3% (in type 1 diabetes) and 64.3% (in type 2 diabetes) of CSMO cases. [source]

Recurrent retinal haemorrhages after glaucoma surgery

ACTA OPHTHALMOLOGICA, Issue 3p1 2004
Kyung-Chul Yoon
No abstract is available for this article. [source]