Large Inguinal Hernia in Infants: Is Laparoscopic Repair The Answer?

Choice of Repairing Inguinal Hernia in Children: Open Versus Laparoscopy

Inguinal hernia is a common disorder of childhood that requires surgical repair at diagnosis. Traditionally, it is operated upon by open inguinal incision. However, with the introduction of laparoscopic repair in 1990, opinion of scientific community is divided concerning the best method of pediatric herniotomy. Educated parents, who long to have the choicest of the best, often gather information from internet and prefer to discuss their concerns with primary care physicians. This descriptive review is intended to provide practicing pediatricians with updated evidence-based information which will enable them to counsel parents regarding the choice of hernia repair. Based on careful analysis of current literature, unacceptable standards are defined in this paper and rationalized recommendations are proposed. Laparoscopy appears to be beneficial in bilateral hernia of girls, giant hernia, recurrence following failed open repair and in hernia associated with undescended testis or ambiguous genitalia. On the other hand, open herniotomy appears to be advantageous in male inguinal hernia, unilateral female hernia, premature newborns, failed laparoscopic repair and in hernia associated with serious co-morbidity.

Herniotomy in resource-scarce environment: Comparison of incisions and techniques

BACKGROUND

There are various methods for surgical treatment of hernia and hydrocele in children with variable cost-effectiveness, recovery and cosmetic outcomes. This study analyses our experience with mini-incision/invasive herniotomy in children in resource-limited centre.

MATERIALS AND METHODS

Seven hundred and eighty-four n = 784 patients underwent herniotomy via conventional and mini-invasive methods were assigned into Group A and Group B. Three hundred and seventy-six n = 376 (47.95%) in Group A while four hundred and eight n = 408 (52.04%) in Group B. Eight hundred and seventeen (817) herniotomy was performed. Demographic data, hernia/hydrocele sides, volume of surgical suture used, surgery duration, and complications analysed.

RESULTS

Right side hernia and/or hydrocele were 464 (59.18%). 287 (36.60%) had left sided while 33 (4.21%) had bilateral hernia and/or hydrocele. There were 14 bilateral hernia repair in Group A and 19 in Group B. The lengths of operation time for unilateral repair ranged from 14 to 54 min in Group A (median, 23 min) and 7-44 min in Group B (median, 15 min) with a mean surgical duration of 15.48 ± 4.16 min in Group B versus 23.41 ± 5.94 min in Group A (P < 0.001) while the range of the lengths of operation time for bilateral repair in Group A was 20-54 min (median, 36) and 12-30 min (median, 21) in Group B with a mean duration of 36.35 ± 9.89 min in Group A versus 20.42 ± 4.83 min in Group B P = 0.00563. 376 sachets of 45 cm suture material were used in Group A versus 137 in Group B. There were total of 87 (23.13%) complications in Group A versus 3 (1.47%) in Group B P = 0.000513. Superficial wound infection and abscess were 9 (2.36%) and 16 (4.25%) in Group A versus none (0) in Group B.

CONCLUSION

Mini-incision/invasive herniotomy in children and adolescents is fast, cost-effective with satisfactory cosmetic outcome and limited complications.

Incise, dissect, excise and suture technique of laparoscopic repair of paediatric male inguinal hernia

BACKGROUND:

Authors report incise, dissect, excise and suture (IDES) technique of laparoscopic repair of paediatric male inguinal hernia (LRPMIH). This series retrospectively evaluates a consecutive personal series of children undergoing laparoscopic hernia repair by this new technique.

MATERIALS AND METHODS:

It is a retrospective review of the LRPMIH done by single surgeon from January 2001 to December 2007. All male patients who were referred to the first author for management of inguinal hernia were given the option of laparoscopic repair. Parents who gave consent for their child to undergo LRPMIH were retrospectively reviewed.

RESULTS:

A total of 155 patients were operated. Age group was 2 months to 13 years (average-5 years). Follow-up period ranges from 1 to 7 years. Average operating time was 29 min for unilateral and 40 min for bilateral inguinal hernia. Maximum time required was 50 min which was for bilateral inguinal hernia. Bilateral inguinal hernia was present in 10 (6.4%) patients. There were no intraoperative complications. Contralateral processus vaginalis was patent in 25 (16.12%) patients. In the immediate post-operative period 8 patients had port site surgical emphysema which resolved on its own. There are no recurrences so far. One patient developed port site hernia, which was repaired with the standard surgery. There is no incidence of clinical testicular atrophy.

CONCLUSION:

LRPMIH can be done as routine procedure and also has fewer complications. It has advantage of diagnosing and repairing contra lateral patent processus vaginalis. However a double-blind controlled study is required to establish the results.

Surgical techniques of laparoscopic inguinal hernia repair in childhood: a critical appraisal

Laparoscopic inguinal hernia repair started over two decades ago. It has been gaining ground as a mode of treatment for inguinal hernia in children. Several surgical techniques have emerged since its inception. The aim of this article is to review the role of laparoscopy in inguinal hernia repair in children, the various emerging laparoscopic surgical techniques, and their current trend in pediatric surgical practice. In this study, extensive review and analysis of recent articles on laparoscopic inguinal hernia repair in children revealed that laparoscopy plays a great role in the treatment of inguinal hernia in children. There were several emerging laparoscopic techniques, with trends toward extracorporeal suturing and knotting technique and single-port access technique as well. The recent advance is toward the use of tissue adhesives in laparoscopic inguinal hernia repair in children.

Laparoscopic repair of pediatric inguinal hernia--is vascularity of the testis at risk? A study of 125 testes

AIM

The aim of this study was to study the effects of laparoscopic inguinal hernia repair on testicular perfusion and size.

MATERIALS AND METHODS

A prospective study concerning laparoscopic inguinal hernia repair was performed for an 18-month period to evaluate testicular perfusion and size in the preoperative, early postoperative (within 48 hours of surgery), and late postoperative periods (6 months after surgery) using Doppler ultrasound (DUS) (both duplex and power Doppler mode). Laparoscopic closure of the deep inguinal ring was accomplished with a purse string suture (Nylon 3-0) using standard 3-port technique. The testis units were divided in 2 groups: group 1 comprising testis units in which a resistive index (RI) could be calculated and group 2 with instances in which an RI could not be calculated but showed blood flow consistently on DUS.

RESULTS

A total of 112 boys underwent laparoscopic inguinal hernia repair with 100 available for complete follow-up and data analysis. One hundred twenty-five inguinal (25 bilateral) hernia repairs were performed. Group 1 had 80 testis units. There was no significant difference in values of RI between preoperative, early postoperative, and late postoperative periods. Group 2 had 45 testis units. Resistive index could not be calculated. Seventy-five percent showed only systolic blood flow on spectral analysis; hence, RI, 1; and the rest showed the presence of blood flow on power Doppler scan. All testis units consistently showed blood flow in the early and late postoperative period. No testicular atrophy was found at 6-month follow-up examination on DUS.

CONCLUSION

Laparoscopic repair of inguinal hernia in children does not affect testicular perfusion or growth.

Minilaparoscopic herniorrhaphy in pediatric inguinal hernia: a durable alternative treatment tostandard herniotomy

BACKGROUND

The purpose of the article is to report our long-term results of minilaparoscopic inguinal hernia repair in children.

METHODS

Between September 2003 and September 2008, 161 children with inguinal hernia were treated with minilaparoscopic herniorrhaphy. The asymptomatic contralateral internal ring was routinely explored and repaired if a patent processus vaginalis of not less than 2 cm was noted. Patients who were followed for less than 1 year and those who were lost to follow-up were excluded from the study. Intraoperative and postoperative complications and hernia recurrences were documented.

RESULTS

In total, 146 patients were eligible for final analysis. A total of 196 minilaparoscopic herniorrhaphies were performed. The mean follow-up period was 3 years. There were 4 hernia recurrences (2%) in 3 boys. There were no procedure-related complications. None of the patients with a negative contralateral exploration or a contralateral patent processus vaginalis of less than 2 cm had a contralateral metachronous inguinal hernia.

CONCLUSIONS

Our long-term results reveal that minilaparoscopic herniorrhaphy combined with hernia sac transection is a safe and effective alternative treatment to standard open herniotomy.

Minimal access surgery of pediatric inguinal hernias: a review

Inguinal hernia is a common problem among children, and herniotomy has been its standard of care. Laparoscopy, which gained a toehold initially in the management of pediatric inguinal hernia (PIH), has managed to steer world opinion against routine contralateral groin exploration by precise detection of contralateral patencies. Besides detection, its ability to repair simultaneously all forms of inguinal hernias (indirect, direct, combined, recurrent, and incarcerated) together with contralateral patencies has cemented its role as a viable alternative to conventional repair. Numerous minimally invasive techniques for addressing PIH have mushroomed in the past two decades. These techniques vary considerably in their approaches to the internal ring (intraperitoneal, extraperitoneal), use of ports (three, two, one), endoscopic instruments (two, one, or none), sutures (absorbable, nonabsorbable), and techniques of knotting (intracorporeal, extracorporeal). In addition to the surgeons' experience and the merits/limitations of individual techniques, it is the nature of the defect that should govern the choice of technique. The emerging techniques show a trend toward increasing use of extracorporeal knotting and diminishing use of working ports and endoscopic instruments. These favor wider adoption of minimal access surgery in addressing PIH by surgeons, irrespective of their laparoscopic skills and experience. Growing experience, wider adoption, decreasing complications, and increasing advantages favor emergence of minimal access surgery as the gold standard for the treatment of PIH in the future. This article comprehensively reviews the laparoscopic techniques of addressing PIH.

Laparoscopic inguinal hernia repair does not impair testicular perfusion

BACKGROUND

Laparoscopic inguinal hernia repair techniques close the internal ring with a suture. Concern has been raised whether or not the testicular vessels are compromised with this technique. This study was undertaken to evaluate pre- and postoperative testicular perfusion and to compare it with healthy controls.

PATIENTS AND METHOD

Sixty-five boys (aged 6 weeks to 11 years; median, 1.4 years) with unilateral (n = 52) or bilateral (n = 13) inguinal hernias were treated laparoscopically. Testicular perfusion was measured using a recently developed neuromonitoring device (O2C; LEA Medizintechnik GmbH, Giessen, Germany), which combines light spectroscopy and laser Doppler technique. An optical probe was placed on the surface of each scrotal pouch for measurements at 2 depths (2 and 8 mm). Measurements involved oxygen (O(2)) saturation at the venous end of capillaries, the amount of hemoglobin within microvessels, the blood flow within microcirculation, and the velocity of the blood in microcirculation. Measurements were conducted before and after anesthesia, before and after surgery, and 6 weeks later. Twenty-one healthy boys of similar ages served as controls.

RESULTS

Measurements at 2-mm depth were unreliable. At 8-mm depth, the oxygen saturation of hemoglobin was between 62% and 75% (hypoxia would be <10%). The relative blood flow was between 160 to 235 arbitrary units, better than in healthy awake controls. Values were solely influenced by the administered fraction of inspired oxygen. Relative hemoglobin volume of the testes and blood flow velocity remained unchanged after surgery. Values were also normal when measured during early and long-term follow-up.

CONCLUSION

Laparoscopic inguinal hernia repair using suture closure of the internal inguinal ring does not impair testicular perfusion.

Pediatric inguinal hernia repair-a critical appraisal

Inguinal hernia repair in infants and babies is a routine operation, but many issues have not been addressed scientifically. Thus, it is not known, e.g., if all children with a hernia should be operated on, what is the best timing of surgery, or if the operation should be performed with an open approach or laparoscopically. The review is a critical discussion of these and other issues in pediatric herniorrhaphy pointing out the need for further research.