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Lower is Better המשמעות לפרקטיקה היומיומית. “Lower Is Better” Proven in Hypertension, Hyperlipedemia and Diabetes. What about in Glaucoma?. Lower Blood Pressure Leads To Better Outcomes. Source: Hypertensiononline.org. Evolution of Hypertension Guidelines (USA). JNC VI *(1997).
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Lower is Betterהמשמעות לפרקטיקה היומיומית
“Lower Is Better”Proven in Hypertension, Hyperlipedemia and Diabetes.What about in Glaucoma?
Lower Blood Pressure Leads To Better Outcomes Source: Hypertensiononline.org
Evolution of Hypertension Guidelines (USA) JNC VI *(1997) JNC VII** (2003) *The Sixth Report of the Joint National Committee On Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. NIH Publication November 1997 **The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure NIH Publication No. 04-5230. August 2004
The Lower The Cholesterol Levels = The Lower The Risk of CVD Mortality Multiple Risk Factor Intervention Trial (n=350,977) • Elevated serum cholesterol is associated with increased risk of CHD and MI • Re-infarction • Stroke • CVD Mortality • All-cause • CHD • Stroke 50 40 30 CVD mortality rate* 20 10 0 <160 160–199 200–239 >240 Serum cholesterol (mg/dl) *Crude death rate (per 10,000 persons/years) CVD = cardiovascular disease Adapted from Kannel WB Am J Cardiol 1995;76:69C-77C; Anderson KM et al JAMA 1987;257:2176-2180; Kannel WB et al Ann Intern Med 1971;74:1-12; Neaton JD et al Arch Intern Med 1992;152:1490-1500.
The Lower The LDL Levels = The Lower The Risk of CHD Log-linear relationship between LDL-C levels and relative risk for CHD 3.7 –30%CHD risk 2.9 2.2 –30 mg/dl Relative risk for CHD(log scale) 1.7 1.3 1 40 70 100 130 160 190 LDL-C (mg/dl) Grundy et al Recent Clinical Trials and NCEP ATP III
Lower is Better New trends in medical treatment of Systemic Diseases
IOP is The Most Important Risk Factor in Glaucoma • Both for morbidity & progression • Direct mechanical impact • Vascular damage – Impaired perfusion
Lower is Better For Every Optic Nerve Study IOP Reduction Mean IOP (mmHg) (Treatment vs. No treatment) Progression(Treatment vs.No treatment) EMGT 25% 15.5 vs. 20.6 45% vs. 62% CNTG 30% 20% vs. 60% 10.6 vs. 16.1 CIGTS 37% (Rx) 52% (Surgery) 17 - 18 (Rx)14 - 15 (S) ~ 12% References: EMGT: Heijl et al. Arch Ophthalmol 2002; 120:1268-1279. CNTG: Am j Ophthamol 1998;126:487-497. CIGTS: Lichter et al. Ophthalmolgy 2001; 108:1943-1953
IOP< 18 mmHg = Better Outcomes 0%–50% of Visits <18 mm Hg 50%–75% of Visits <18 mm Hg 75%–100% of Visits <18 mm Hg All Visits <18 mm Hg Mean IOP 20.2 mm Hg 16.9 mm Hg 14.7 mm Hg Mean Change in Visual Defect 12.3 mm Hg AGIS 7. Am J Ophthalmol. 2000.
The Lower The IOP = Less Change in VF Moorfields Glaucoma Study.Ophthalmolgy 1994;101: 1651-1757
Controlled Clinical Trials in Glaucoma Demonstrate That IOP Reduction Reduces The Risk of Visual Field Deterioration at Mean IOP of 12 – 18 mmHg Study Patients N Follow Up (Years) % IOP Reduction Mean IOP (mmHg) EMGT Patients with early glaucoma 255 6 25% 15.5 CNTG Patients with Normal tension Glaucoma 140 8 30% 10.6 17 - 18 CIGTS (Rx) Patients with newly diagnosed open angle glaucoma 607 4 – 5 35% 12.3 AGIS Patients with advanced glaucoma 591 7 35% References: EMGT: Heijl et al. Arch Ophthalmol 2002; 120:1268-1279. CNTG: Am j Ophthamol 1998;126:487-497. CIGTS: Lichter et al. Ophthalmolgy 2001; 108:1943-1953. AGIS: Am j Opthalmol 2000; 130:429-440
Lower is Better - 24h a day • Large diurnal fluctuations in IOP are an independent risk factor in patients with glaucoma1 • IOP fluctuation is larger in eyes with higher IOP levels2 • Optimization of 24 hours IOP is the best goal for minimizing the risk for progressive damage to the optic nerve and visual field3 1.Asrani et al J Glaucoma 2000 2000 Apr;9(2):134-42 2. Bengtson B et al Graefes Arch Clin Exp ophthal 2005 Mar 3. American Journal of Ophthalmology 2002 :133;6;S1-10
תיאור מקרה: פרופיל החולה Info • גיל: 56 • מין: זכר • VA : 20/20 בשתי העיניים • C/D Ratio : 0.8 בשתי העיניים • ה- IOP התחלתי - 22 ממ"כ • Normal Anterior Segment
שדה ראייה Exams עין ימין עין שמאל Superior Nasal-Arcuate Defect Mild Inferior Nasal Step
מעקב: כעבור שנתיים Info מדידת IOP : • עין ימין - 16 ממ"כ • עין שמאל - 18 ממ"כ
מעקב שדות ראייה: כעבור שנתיים Exams עין ימין עין שמאל
סיכום ביניים Info • לחולה הותחל טיפול בטימולול X2 ביום שהוריד את הלחץ כצפוי • כעבור שנתיים נצפתה הידרדרות בעין שמאל (לחץ – 18 ממ"כ) מה עליי לעשות כעת ?
סיכום ביניים Info • יש להוריד את הלחץ בעין שמאל ל- 15 – 14 ממ"כ • מומלץ לבצע עקומת לחצים
עקומת לחצים(תחת טיפול בטימולול) Exams Mean IOP 15.8 Mean IOP 18
מסקנות: Info • הלחץ מטרה לחולה זה מלכתחילה היה צריך להיות נמוך מ- 18 ממ"כ • בנוסף לכך שהלחץ לא הורד מספיק עקומת לחצים הדגימה פלוקטואציות בלחץ (עלייה בשעות הערב) איזה טיפול היית מתאים לחולה זה? • לחולה נרשם קוסופט – • מדוע קוסופט?
COSOPT Maintained IOP Reduction Up to 9 mmHg Over 15 Months 28 COSOPT (n=112) dorzolamide 2% (n=109)timolol 0.5% (n=110) 26 24 22 IOP 2 hours afteradministration (mmHg) 20 -9mmHg(p<0.05 vs. baseline) 18 17 (-34%) 16 Open extension Double blind 0 1 2 3 6 9 12 15 Week 2 Month p<0.05 for all mean IOP values vs. baseline Adapted from Boyle JE et al Ophthalmology 1998;105(10):1945-1951.
Experience With COSOPT Gained in Swiss Ophthalmologists’ Offices Changes in IOP under COSOPT according to previous therapy at visit 2 compared to baseline. Mean differences between IOP readings at baseline and visit 2 are shown in mmHg BB +CAI** BB + Latanoprost Previouslyon: New Patients Latanoprost BB* Mean Difference in IOP (mmHg) * Topical Beta Blockers ** Carbonic Anhydrase Inhibitors IOP at baseline # of patients: 28.3 23.1 22.3 19.5 20.4 73 165 22 37 134 Adapted from Paijc et. al. Current Medical Research and opinion Vol.19 No.2; 2003: 95-101
COSOPT - Consistent 24 h IOP Control 24-Hour IOP Control • COSOPT provided significantly better IOP control than latanoprost at 10 PM (p=0.006) 18 COSOPT Latanoprost 17 16 15 14 Mean IOP (mmHg) 13 12 11 10 0 2:00 AM 6:00 PM 10:00 PM* 10:00 AM 2:00 PM 6:00 AM *p=0.006 vs. latanoprost Reference: Konstas et.al. Ophthalmolgy 2003; 110: 1357-1360