Multiplex Laser for treating Non Involuting Congenital Haemangiomas (NICH) in children.
Congenital Haemangioma, laser treatment, non-involuting congenital haemangioma, children, birth mark.
Non-involuting congenital haemangiomas (NICH) are distinguished from other types of haemangiomas by lack of postnatal growth or involution.1-3 There are now 4 distinct categories of congenital haemangioma. NICHs as described, rapidly involuting congenital haemangiomas (RICH), which usually involute within the first year of life, and partially involuting congenital haemangiomas (PICH).4,5 PICHs present clinically very similar to RICH but undergo only partial involution.2 RICHs are the most common of the four while NICHs have been shown in a number of studies to be rather sporadic.1,6 Unlike Infantile Haemangiomas (IH) they are fully formed at birth and do not display a response to propranolol.7 NICHs have generally been treated with excision for those that are medically or aesthetically troubling, while some have tried pulse-dye laser (PDL).6,8
Currently there is lack of published data on the use of laser therapy in congenital haemangioma.1 TICH, Tardive involuting congenital haemangioma has recently been described which erupts during puberty.11
The aim of this study was to assess the efficacy of the multiplex (CYNERGY) laser in the treatment of NICH in the paediatric population.
Patients and Method
Seven children aged between 5 and 15 years, 2 male 5 female, with NICH, were identified as having been treated with combined CYNERGY (multiplex laser) at Great Ormond Street Hospital (GOSH) between December 2013- 2016. The multiplex laser is a combination laser which delivers 585-nm Pulsed Dye Laser [PDL] and a 1064-nm Nd:YAG laser. The probe used was 10mm in 5 cases and 7mm in 2 cases. Laser parameters were; group 3 with a pulse duration of 6ms using PDL and 15ms using Nd:YAG). Fluences varied between 7.5-11.5 (J/cm2) with PDL and 60 Joules Nd:YAG except in 2 cases of 40 Joules (Table 1).
Four of the patients previously had PDL prior to their multiplex using 585 nm wavelength; at repeat treatment all had combined multiplex laser therapy. Cooling was provided by Dynamic Cooling Device TM (DCDTM) using the PDL laser and ice cool water while with multiplex, cool USS gel was applied at the time of procedure and the cryo4 air flow cool system was utilised. Photos were taken before and after each treatment. Results were assessed by examining the patient photographs before and at the end of treatment, a percentage change was calculated using both a colour coded chart and by clinical assessment. Three of the patients had general anesthesia [GA] while four were treated under local anesthesia [LA].
Table 1 Patients and treatment variables on Cynergy Multiplex PDL/ Nd:YAG
Male : Female###2:5
Laser Probe used###7-10 mm
Laser parameter###Group 3
Pulse duration###6 ms-PDL / 15 ms- Nd:YAG
Fluence###7.5-11.5 J/cm2-PDL / 40-60 J/cm2-Nd:YAG
Patients treated under GA were more than 3 years of age.
Out of all the patients included, NICH were confined as follows; 2 on the lower leg, 2 upper leg, 1 upper arm, 1 forearm and 1 patient had a lower lip NICH. The overall average percentage improvement was 75%, using between 3-8 treatments. Three patients achieved almost complete resolution with over 90% improvement, from presentation till end of treatment. Interestingly all three of these patients showing near complete resolution had their procedure with GA and had significantly greater number of pulses, average pulses under GA was 36 while the average pulses under LA was 15, indicating that clinicians can treat entire areas by using more pulses, while the patient is under GA.
In all cases there was a marked reduction in the redness and bulk of the lesion. As can be seen with one of the patients in Figure 1a AND 2a before treatment and Figure 1b AND 2b after multiplex laser therapy. All patients and their families were satisfied with the outcome, this data was recorded in the hospital records. In future studies patient satisfaction questionnaire could be used.
Overall we found that using multiplex laser following the initial PDL therapy showed good response.
A small number of cases were included, patient satisfaction questionnaire was not used as part of our assessment as this was a retrospective study. Some patients had PDL sessions before they had the combination laser therapy thus already had partial improvement before having Multiplex laser treatment.
NICH never involute as far as we are aware. The only therapeutic option described is of surgical excision and plastic reconstruction when there is cosmetic or medical impairment. Some clinicians have attempted PDL therapy however this has shown limited benefit.9,10 We have seen that vascular lasers, specifically multiplex, have a further role to play in this condition. Since NICH do not involute we recommend early treatment. Our recommendation is maximum 6 to 8 treatments to get the best outcome before considering any surgical intervention. None of our seven patients required debulking surgery.
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11. Hua C, Jin Y, Wang L, Chen H, Ma G, Qiu Y et al. Tardive Expansion Congenital Hemangioma: a variation of NICH or a new hemangiomatous entity? ISSVA [Internet]. Amsterdam: ISSVA; 2018 [cited 21 January 2019]. p. 48. Available from: http://www.issva.org/UserFiles/file/ISSVA2 018-Program-AbstractBook.pdf.
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|Author:||A Khan, B Evans, M Gnarra and SB Syed|
|Publication:||Journal of Pakistan Association of Dermatologists|
|Date:||Sep 30, 2019|
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