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Tuesday, July 31, 2018
Thursday, July 5, 2018
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Saturday, May 19, 2018
Friday, May 18, 2018
Saturday, April 28, 2018
Thursday, April 26, 2018
Sunday, April 15, 2018
Friday, April 6, 2018
Evidence Based
Treatment of Idiopathic Intracranial Hypertension. (IIHT)
Andras Rozsa, MD PhD,
Coptic Hospital, Kenya
Statement of problem:
Idiopathic Intracranial hypertension (formerly benign
intracranial hypertension or pseudotumor cerebri) is a serious disorder with therapeutic
uncertainties. It may affect young obese women, with body mass index around 40,
and presents with headache, visual obscurations, back pain, and pulsatile
tinnitus. One to four per one hundred thousand people may be affected every
year. The condition endangers vision. There is a lack of uniform agreement
concerning medical management with diuretics; and there is a lack of guidelines
concerning the necessity and timing of surgical interventions.
In a 2015 Cochran
Review concluded that “although…..the included RCT showed modest benefits for
acetazolamide for some outcomes, there is insufficient evidence to recommend or
reject the efficacy of this intervention”.
Purpose of this
Study:
To find any new evidence based results published since the Cochrane
Database Review of IIHT released in 2015 August.
Methodology and
Theoretical Orientations:
Online research of MEDLINE, Cochrane Library and CENTRAL,
MEDSCAPE, PLOS, ClinicalTrials.gov, WHO International Clinical Trials Registry
Platform.
Findings:
New results of one trial were published in multiple articles:
“Idiopathic Intracranial Hypertension Treatment Trial”. This was a randomized,
double-masked, placebo-controlled study.
165 patients were enrolled with mild vision loss. 86 patients
were randomized to acetazolamide, 79 to placebo group.
Quality of life questionnaire results reported improvement
in visual field, and neck pain, pulsatile tinnitus, and dizziness/vertigo that outweighed
the side effect of acetazolamide.
All 165 patients had lumbar puncture at enrollment, 85 at 6
month. There was an association between cerebro -spinal pressure (CSFp) and Frisen
papilla edema grade (FPG) at baseline.
At 6 months, acetazolamide had similar effect on CSFp in subjects with
high FPG and in subjects with low FPG . Only modest association was found
between CSFp and FPG.
In patients with IIH and mild visual loss the use of acetazolamide
with low-sodium weight -reduction diet compared with diet alone resulted in modest
improvement in visual field function. The study found profound effect of weight
loss on outcome.
89 (43 acetazolamide, 46 placebo) of 165 subjects meet criteria
to enroll to asses papilla edema to SD-OCT (spectral domain optical coherence
tomography). Acetazolamide group had significantly greater reduction of retinal
nerve fiber and total retinal thickness.
Conclusions and
Significance:
In the light of new publications it is still not clear the medication
or weight loss resulted in positive outcomes. Only mild cases were enrolled in
the cited study. There are no data regarding drug adverse affects, neither
explanations of high drop-out rate. No CSF studies results provided except
changes in opening pressure. Further RCTs needed to provide conclusive evidences
of interventions.
References:
1. Piper RJ, Kalyvas AV, Young AMH et al:
Interventions for idiopathic intracranial hypertension (Review) Cochrane
Database of Systematic Reviews 2015, Issue 8. Art No.: CD003434
2.
Effect of Acetazolamide on Visual Function in
Patients With Idiopathic Intracranial Hypertension and Mild Visual Loss. The
Idiopathic Intracaranial Hypertension Treatment Trial. The NORDIC Idiopathiac
Intracranial Hypertension Study Group Writing Committee. JAMA. 2014; 311(16): 1641-1652
3.
Kattah JC, Pula JH, Mejico LJ et al: CSF
pressure, papillaedema grade, and response to acetazolamide in the Idiopathic
Intracranial Hypertension Treatment Trial. Journal of Neurology. Published
online 10 July 2015
4.
Mall M, Kupersmith MJ, Kieburtz KD et al: The Idiopathc
Intracranial Hypertension Trial. JAMA Neurol. 2014 June; 71(6): 693-70
The OCT Sub-Study Committee and the NORDIC
Idiopathic Intracranial Hypertension Study Group. Papiledema Outcomes from the
OCT Substudy of the Idiopathic Intracranial Hypertension Treatment Trial.
Ophtalmology. 2015 September; 122(9): 1939-1945
Bruce BB, Digre KB, McDermott MP et al: Quality
of life at 6 month in the Idiopatica Intracranial Hypertension Treatment Trial.
Neurology. 2016 November; 87: 1871-1877
Wall M, Johnson CA, Cello KE et al.; for the
NORDIC Idiopathic Intracranial Hypertension Study Visual field outcomes for the
Idiopathic Intracranial Hypertension Treatment Trial (IIHTT) Invest Ophtalmol
Vis Sci. 2016; 57; 805-812.
Thursday, March 29, 2018
Wednesday, March 7, 2018
Tuesday, February 27, 2018
Monday, February 26, 2018
With coach in the ‘Puszta’. The autumn in the ‘Great Hungarian Plain’
In October, from the palette of the
nature, the autumn paints the ‘great Hungarian’ plain from lush green into
gold, brown, yellow and amber. Lucky was I to be invited to the cottage
of ’Jaszkarajeno’ by Sandor Galambos to visit the National Coach Riding
competition in Hungary .
The Galambos family is one of the oldest horse breeding family, and he and his
son are winners of many European coach riding competitions.
Linguistics shows that the origin
of the word ‘coach’ and its equivalents in many European languages is the
Hungarian word ‘kocsi’-he says. It is
derived from the wagon of ‘Kocs’. The village of ‘Kocs’ in Hungary is
considered to be the home of coach builders who build the first light and fast
carriages. The colorful world of
carriage as part of everyday life has disappeared in inverse ratio to the rapid
advance of motorization. But an increasing number of horses are kept for sport
and recreation. Equestrian sports have made remarkable progress during the last
few decades and their popularity has increased in our motorized world. One of
the newest of the equestrian sports, carriage-driving, has recently been
accorded official recognition by the International Equestrian Federation.
Carriage-and-pair championships and four-in-hand World Championships has been
held in every two years. Carriage-driving competitions last three days, on the
first day there is presentation and dressage, on the second day the marathon,
and on the third day the obstacle driving. It is very complex challenge, which
requires much knowledge, attention and training.
Because it is a relatively new
sport, which is a short time in horse breeding, means that we cannot even speak
about individual breed especially suitable for driving competitions. The
horses, other accessories such as harness, vehicle and its fitting are of vital
importance. We usually use the Arab, the Lipizzaner, the Nonius and the
Hungarian half-breeds, but with some refinement in breeding, Mr. Galambos
explains. In selecting them, care must be taken regarding harmony, since
vehicles should not only meet the demands of practicability, but also those of
aesthetics. According to their usage, present day competition vehicles are
divided into two groups: road carriages and cross-country carriages. As
carriage-driving is a formal event, dark clothing is considered to appropriate
to wear. It is very much the driver’s favour if his dress matches the colour of
the covers and the grooms’ outfit. If the assistant driver wears national
costume, the driver himself should be dressed in dark gray or black. The
costume of the grooms and of the assistant drivers can be proper coachman’s
livery or the original national costume of a particular geographic region. The
assistant driver of a carriage-and-pair may be attired in a sporting style
similar that of the driver. Ceremonial dress is always close fitting, the boots
have seam on the side, the shafts are stiff and the counters low. The characteristic
broad-brimmed hat is adorned with ostrich feathers. A fringed silk tie and
brown leather gloves complete the outfit. The first day, the presentation is
actually a kind of ‘beauty contest’ in which a three-member jury judges the
competing teams. A very essential aspect is that horses of a team should be
uniform in colour and size. The harness should be put on correctly and the team
has to be fully equipped. The driver and the grooms should be dressed according
to the rules. All the parts of the carriage, and accessories like shabracks,
blankets, upholstery, dress, should coordinate in colour and style. Further
points are awarded to the trimness of the team, i.e horses, harness, carriage,
dress, boots and shoes should all be in the best condition.
During cross-country driving or
marathon - which is the second day of the competition - the distance to be
covered is between 20 and 30 km on very different kind of road: lose sand,
gravel, loess or plain, hilly and rocky ground and sometimes even mountains.
The third day of the competition is
the obstacle driving. The course of obstacle driving is either on turf or in a
stadium. The obstacles to be negotiated in the sequence are: gates, U or
Z-formed passages and there are sometimes water-ditches and platforms. The
rather spectacular nature of obstacle driving gives it a high entertainment
rating, and it usually attracts several thousand spectators. It is important to
be prepared for this, as no driver is without nerves - says Mr. Galambos and
instead of inviting us into a race coach, with a smile he whisked us into a
ceremonial coach to enjoy the stunning autumn sunset of the ‘Puszta’. We just
can not resist sharing the beauty and joy of driving coaches.
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