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Diagnosis and Management of Infantile Hemangioma

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Propranolol Versus Other Active Modalities<br />

• In network meta-analysis, oral propranolol was associated with a mean estimate <strong>of</strong><br />

expected clearance <strong>of</strong> IH <strong>of</strong> 95% (95% BCI: 88% to 99%) compared with a lower rate for<br />

oral steroids (43% [95% BCI: 21% to 66%]), while in head-to-head comparisons three<br />

small studies found propranolol was more effective than corticosteroids, <strong>and</strong> two did not<br />

find a significant difference in effectiveness between the two therapies. Combined effects<br />

from individual studies <strong>and</strong> network meta-analysis conferred moderate SOE for the<br />

superiority <strong>of</strong> propranolol over steroids at achieving IH clearance.<br />

• In one cohort study comparing the effects <strong>of</strong> intralesional steroids <strong>and</strong> oral propranolol on<br />

vision outcomes, improvement in amblyopia did not differ between agents, but fewer<br />

children receiving propranolol required additional treatments or had side effects than<br />

those receiving steroids.<br />

• Propranolol combined with pulsed dye laser (PDL), either concurrently or sequentially,<br />

was more effective than propranolol alone in one study.<br />

• In a study comparing oral propranolol with intralesional bleomycin, 6 <strong>of</strong> 10 children in<br />

each arm had at least 75 percent clearance <strong>of</strong> IH.<br />

• One study found that patients who received propranolol had a lower likelihood <strong>of</strong><br />

subsequent laser treatment than those who received other interventions.<br />

• Propranolol was associated with faster healing <strong>of</strong> ulceration versus historical treatments<br />

including laser <strong>and</strong> antibiotics.<br />

Oral Propranolol Versus Other Beta-Blockers or Dosage Forms<br />

• Other oral beta-blockers (atenolol, nadolol) investigated in three studies were reported to<br />

be effective in promoting IH resolution <strong>and</strong> potentially associated with fewer adverse<br />

events than propranolol (low SOE for no difference in response <strong>of</strong> IH to propranolol,<br />

nadolol, or atenolol).<br />

Timolol Versus Placebo/Observation or Other Active Modalities<br />

• In our network meta-analysis, topical timolol had a mean expected clearance rate <strong>of</strong> 62<br />

percent (95% BCI: 39% to 83%) compared with 6 percent (95% BCI: 1% to 11%) for<br />

placebo or observation (low SOE for effectiveness <strong>of</strong> timolol versus placebo or<br />

observation).<br />

• Topical timolol 0.5 percent maleate gel promoted improvement <strong>of</strong> superficial IH without<br />

reported adverse effects in four comparative studies (low SOE for lack <strong>of</strong> association<br />

with harms). Studies reported effectiveness at 24 weeks with the noticeable change in IH<br />

lesions occurring approximately 12 to 16 weeks after initiation <strong>of</strong> treatment.<br />

Overview <strong>of</strong> the Literature<br />

We identified a total <strong>of</strong> 81 studies (nine RCTs, 14,17,92,93,98-100,102,104 16 cohort studies, 95-<br />

97,101,103,105,106,130-133,144-150<br />

<strong>and</strong> 56 case series 16,18,151-205 ) addressing beta-blockers including<br />

propranolol, atenolol, nadolol, <strong>and</strong> timolol. Comparative studies addressed the following<br />

interventions <strong>and</strong> comparators: propranolol compared with observation or placebo arms,<br />

propranolol compared with other active modalities (e.g., steroids), oral propranolol compared<br />

with other beta-blockers or dosage forms, <strong>and</strong> timolol compared with observation/placebo or<br />

another modality (e.g., laser). Comparative studies included a total <strong>of</strong> 1539 children between the<br />

ages <strong>of</strong> less than one month to 9 years. We considered four RCTs to be good quality <strong>and</strong> five as<br />

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