here - Paediatric Circumcision
Transcription
here - Paediatric Circumcision
Current Techniques for Circumcision Anies Mahomed MBBCh, FCS (SA), FRCS(Glasg., Ed.), FRCS(Paediatric Surgery) Ram Nataraja BSc MBBS MRCSEd Department of Paediatric Surgery, Royal Alexandra Children’s Hospital Eastern Road, Brighton, BN2 5BE, United Kingdom. 1 Introduction: Circumcision is one of the oldest procedures described. The earliest Egyptian mummies (2300BC), the indigenous people of the Australian and American continents were all found to be circumcised. There are also references to this procedure in all of the major religious texts including the Bible and the Koran. The majority of circumcisions, especially within Judaism, are performed in the community whilst the male is still a neonate. Over 60% of neonates are circumcised in the United States 1. However circumcision is still one of the most common operations that a paediatric surgeon and urologist will encounter in their practice 2. There are many techniques that have been described to perform the removal of the foreskin either by the operative technique or with the use of devices. In this chapter we will focus on the most commonly applied surgical techniques; the sleeve dissection technique, a modified guillotine technique employing a glans guard, and the most commonly used device; the Plastibell TM (Hollister Incorporated, Illinois, USA). There has been much debate over the possible indications for circumcision over the past few decades, which extends beyond the scope of this chapter. The only true indications for circumcision however remain a pathological phimosis secondary to balanitis xerotica obliterans or the presence of squamous cell carcinoma of the penis. The only true contraindications include the presence of either a hypospadias or an epispadias, as the foreskin may be needed for the formation of the neourethra. There is a suggested approximate 3.5% complication rate with the open technique; the commonest complications being infection (1.3%) and bleeding (0.8%) 3,4. There is a similar complication rate of 2-3% reported with the PlastibellTM technique5, and only 1.8% with the glans guard technique 6. Other complications include; pain, haematoma, glandular injury, increased sensitivity and irritation of the glans, urethral meatitis, urinary retension, urethrocutaneous fistulae, and anaesthetic complications. 2 Sleeve resection technique: This technique is well established in the paediatric urological community. It requires the procedure to be conducted in the operation theatre under general anaesthetic and it is standard practice to have a surgical assistant present. It provides an excellent cosmetic result although there is a slightly increased risk of iatrogenic injury which includes glandular injury and urethra-cutaneous fistula formation 7-9. Though well documented, these injuries are seen extremely rarely in specialised centres performing this technique. This procedure requires more time to perform compared to techniques involving devices and is performed with the surgeon and assistant standing either side of the operating table. Step 1: Once prepucial adhesiolysis is achieved and smegma removed with a betadine soaked swab the frenulum is divided with diathermy. 3 Step 2: The skin of shaft is marked circumferentially at the level of the corona. Step 3: The foreskin is then retracted and the mucosa cuff marked approximately 3 to 4 mm inferior to the corona. Step 4: 4 The skin is then incised as per the markings starting with the shaft and proceeding to the mucosal cuff. Care should be taken to incise only superficially to avoid damage to the deeper tissue, particularly on the ventral aspect. Step 7: The foreskin between the incisions is then resected utilising sharp or diathermy dissection and the underlying tissue is examined with meticulous haemostasis. Step 9: 5 The shaft skin and the mucosal cuff are aligned and approximated with absorbable sutures +/- a horizontal mattress suture at the frenulum. Two haemostats are used at the 6 and 12 o’clock positions to stabilise the penile shaft while the remaining sutures are placed to complete closure. Step10: The completed circumcision 6 PlastibellTM technique: The PlastibellTM technique was first described in the United States by Kariher and Smith in 1956. Since it was described it gained popularity with the paediatric surgical community for performing safe neonatal circumcisions 10-12. As with the sleeve resection technique there are potential rare complications that include excessive skin loss, urethrocutaneous fistulae, and partial necrosis of the glans 12-14. These are primarily thought to be due to the incorrect size of Plastibell TM being applied13. Commoner complications include; PlastibellTM retention, slippage and inadequate circumcision 12. The PlastibellTM technique is reserved for younger patients and can be safely utilised in up to 2 year olds. Use in older patients risks higher complications. Depending on the age of the patient it may be performed under local or a general anaesthetic. Step 1: A standard ring block with 0.5% lignocaine in a dose of 1mg/kg is applied to the penile base. Once satisfactory anaesthetic is achieved the foreskin is comprehensively freed from the underlying glans and calibrated with an appropriately sized Plastibell TM device. Step 2: 7 After the foreskin is returned to the normal anatomical position, it is grasped between 2 haemostatic clips to either side of the dorsal midline. The foreskin between the two clips is then crushes and divided to a depth of 1cm. The two layers at the apex of the incision are approximated with a 6 cm length of 4/0 silk and held on a haemostat. Step 3: A pre-moistened PlastibellTM is then introduced through the widened foreskin to encase the glans. The correct orientation is with the handle at 90 o to the frenulum to avoid damage to this structure during separation of the handle. An appropriate amount of foreskin is then drawn over the Plastibell TM with a bimanual manoeuvre of forward traction on foreskin via the haemostatic clips and simultaneous gentle downwards pressure on the Plastibell TM. Two sequential silk 0 sutures are then placed on the groove of the 8 PlastibellTM device with care to avoid knot overlap. The authors have found this to be superior to the use of the string ligature which comes packaged with the device 12. Step 4: Correct suture placement is confirmed prior to division of the foreskin approximately 2mm distal to the ring. 9 Guillotine Technique with Glans Guard Assistance: This technique is an adaptation of one that has been established in paediatric practice and involves the use of a bone-cutting forceps15. With the original technique, after the mobilisation of the glans from the preputial adhesions, the foreskin is lifted between two haemostats and the position of the glans palpated. The bone-cutting forceps are then placed parallel to the coronal sulcus and the foreskin clamped above the glands. A scalpel is then run against the bone-cutting forceps to complete the circumcision. With this technique there are concerns however over the potential iatrogenic damage to the glans that can result 16. For this reason the glans guard (Dixons Surgical Instruments, Wickford, UK) was introduced which greatly decreases the likelihood of damage to this structure whilst giving an excellent result in a short procedure. The use of the bone-cutting forceps creates a uniform suture line that some paediatric surgeons consider superior to either of the previously described techniques. The technique is also quicker to perform and with less blood loss. Step 1: After the glans has been released from its preputial adhesions the foreskin to be excised is marked and elevated with two haemostats. The glans guard is placed onto the foreskin at the level marked. It’s orientation is oblique and parallel to the corona. There are different aperture sizes to the glans guard (small, medium and large) therefore the correct device for the patient is chosen. Step 2: 10 The bone-cutting forceps are then placed on the glans guard and foreskin crushed between the blades. Step 3: A scalpel is then run along the bone-cutting forceps to complete the foreskin division. If this step is performed with one fluid movement a superior cosmetic result is obtained. Step 4: 11 The foreskin is then retracted and the mucosal cuff examined. It may be necessary at this point to trim the cuff. The opposition of the skin and mucosa is then performed with absorbable sutures as previously described with the other techniques. Step 5: A dressing can then be applied. 12 Summary In this chapter we have focused on the three popular techniques for circumcision. The Plastibell TM described above is the most commonly utilised device although there are numerous other types available including the GomcoTM (Allied Healthcare Products Inc, St Louis US) and the Tara TM clamp (Taramedic Corporation KL Malaysia)17,18. The PlastibellTM is best utilised in the neonatal and infancy period. In this context it is associated with a low complication rate and minimal anaesthetic risks whilst producing a good cosmetic result12. The use of this device in older children is not advised as this can be associated with impaction rate of 26.9% compared to 2.3% in infants 19. With an older child there are psychological implications to the placement of a device without a general anaesthetic. In these children therefore an operative intervention such as either the sleeve dissection or guillotine method should be used. As discussed both techniques have advantages and disadvantages but provide a good cosmetic result. If the guillotine technique is used it is recommended that it should be performed with the glans guard as this results in a decreased complication rate; 1.8% in a series of 224 patients 6. No injuries to the underlying glans were seen although in some series this has been reported as high as 3.5% 20. The guillotine method can be expeditiously performed and offers an excellent cosmetic result. On the other hand the sleeve technique carries a low complication rate although associated with an increased operative time3,4. It should be noted that these results are obtained from performing the procedure in the controlled environment of a specialised centre and the complication rates following a community circumcision are significant and may be as high as 35% 21. In our experience when a suitable technique is applied adequate results are obtained in all age groups. The circumcision process should never be underestimated and care should be taken to avoid potential complications. 13 References 1. Holman JR and Stuessi KA. Adult Circumcision. Am Fam Physician. 1999 Mar 15;59(6):1514-8 2. Drain PK, Halperin DT, Hughes JP, et al. Male circumcision, religion, and infectious diseases: an ecologic analysis of 118 developing countries. BMC Infect Dis. 2006 Nov 30;6:172. 3. Krieger J et al. Adult male circumcision: Results of a standardized procedure in Kisumu District, Kenya. BJU International 2005; 96:1109-1113. 4. Auvert B, Taljaard D, Lagarde E, et al. Randomised controlled intervention trial of male circumcision for reducing HIV risk: The ANRS 1265 Trial. PLoS Medicine 2005:2(11):e298. 5. Manji KP. Circumcision of the young infant in a developing country using the plastibell. Ann trop Paediatr 2000;20:101-104. 6. Mahomed A, Ogston K. Gomco circumcision correspondence. J Pediatr Surg. 2002 Apr;37(4):683. 7. Essid A, Hamzaoui M, Sahli S, Houissa T. Glans reimplantation after circumcision accident. Prog Urol. 2005 Sep;15(4):745-7. 8. Baskin LS, Canning DA, Snyder HM 3rd, Duckett JW Jr. Surgical repair of urethral circumcision injuries. J Urol. 1997 Dec;158(6):2269-71 9. Ceylan K, Burhan K, Yılmaz Y Severe complications of circumcision: An analysis of 48 cases J Pediatr Urol. 2007 Feb;3(1):32-35. Epub 2006 Jun 9. 10. Barrie H, Huntingford PJ, Gough MH. The plastibell technique for Circumcision. Br Med J. 1965 Jul 31;2(5456):273-5. 11. Al-Samarrai AY, Mofti AB, Crankson SJ et al. A review of a Plastibell device in neonatal circumcision in 2,000 instances. Surg Gynecol Obstet. 1988 Oct;167(4):341-3. 12. Mahomed A, Zaparackaite I, Adam S. Improving outcome from Plastibell circumcisions in infants. Int Braz J Urol. 2009 May-Jun;35(3):310-3. 13. Bode CO, Ikhisemojie S, Ademuyiwa AO. Penile injuries from proximal migration of the plastibell circumcision ring. J Pediatr Urol. 2009 Jun 29. [Epub ahead of print] 14. Lazarus J, Alexander A, Rode H. Circumcision complications associated with the Plastibell device. S Afr Med J. 2007 Mar;97(3):192-3. 14 15. Machmouchi M, Alkhotani A. Is neonatal circumcision judicious? Eur J Pediatr Surg. 2007 Aug;17(4):266-9 16. El-Bahnasawy MS, El-Sherbiny MT. Paediatric penile trauma. BJU Int. 2002 Jul;90(1):92-6. 17. Wan J. GOMCO circumcision clamp: an enduring and unexpected success. Urology. 2002 May; 59(5):790-4. 18. Horowitz M, Gershbein AB. Gomco circumcision: When is it safe? J Pediatr Surg. 2001 Jul;36(7): 1047-9. 19. Samad A, Khanzada TW, Kumar B. Plastibell circumcision: A minor surgical procedure of major importance. J Pediatr Urol. 2009 Jun 12. [Epub ahead of print] 20. Okeke LI, Asinobi AA, Ikuerowo OS. Epidemiology of complications of male circumcision in Ibadan, Nigeria. BMC Urol. 2006 Aug 25;6:21. 21. Williams N, Kapila L. Complications of circumcision. Br J Surg. 1993 Oct;80(10):1231-6. 15