Hernia Repair In Infants Research Articles

A comparison of ultrafast and conventional spectral Doppler ultrasound to measure cerebral blood flow velocity during inguinal hernia repair in infants

BackgroundUltrafast cerebral Doppler ultrasound enables simultaneous quantification and visualization of cerebral blood flow velocity. The aim of this study is to compare the use of conventional and ultrafast spectral Doppler during anesthesia and their potential to show the effect of anesthesiologic procedures on cerebral blood flow velocities, in relation to blood pressure and cerebral oxygenation in infants undergoing inguinal hernia repair. MethodsA single-center prospective observational cohort study in infants up to six months of age. We evaluated conventional and ultrafast spectral Doppler cerebral ultrasound measurements in terms of number of successful measurements during the induction of anesthesia, after sevoflurane induction, administration of caudal analgesia, a fluid bolus and emergence of anesthesia. Cerebral blood flow velocity was quantified in pial arteries using conventional spectral Doppler and in the cerebral cortex using ultrafast Doppler by peak systolic velocity, end diastolic velocity and resistivity index. ResultsTwenty infants were included with useable conventional spectral Doppler images in 72/100 measurements and ultrafast Doppler images in 51/100 measurements. Intraoperatively, the success rates were 53/60 (88.3%) and 41/60 (68.3%), respectively. Cerebral blood flow velocity increased after emergence for both conventional (end diastolic velocity, from 2.01 to 2.75 cm/s, p < 0.001) and ultrafast spectral Doppler (end diastolic velocity, from 0.59 to 0.94 cm/s), whereas cerebral oxygenation showed a reverse pattern with a decrease after the emergence of the infant (85% to 68%, p < 0.001). ConclusionIt is possible to quantify cortical blood flow velocity during general anesthesia using conventional and ultrafast spectral Doppler cerebral ultrasound. Cerebral blood flow velocity and blood pressure decreased, while regional cerebral oxygenation increased during general anesthesia. Ultrafast spectral Doppler ultrasound offers novel insights into perfusion within the cerebral cortex, unattainable through conventional spectral ultrasound. Yet, ultrafast Doppler is curtailed by a lower success rate and a more rigorous learning curve compared to conventional method.

Comparing Outcomes of Single-Incision Laparoscopic Herniorrhaphy in Newborns and Infants.

As surgical techniques progress, laparoscopic herniorrhaphy is now performed more often in premature babies. The aim of this study was to analyze the outcomes of newborns and infants who underwent single-incision laparoscopic herniorrhaphy (SILH) at our center. We retrospectively reviewed patients younger than 12 months old who received SILH at our department from 2016 to 2020. SILH involved a 5 mm 30-degree scope and 3 mm instruments with a 3-0 Silk purse-string intracorporeal suture for closure of the internal ring. At the time of surgery, Group 1 newborns, whose corrected age was 2 months and below, were compared to the Group 2 infants, whose age was above 2 months. We assessed the patients' characteristics, anesthesia, surgical data, and complications. A total of 197 patients were included (114 newborns in Group 1 and 83 infants in Group 2). The mean age and body weight in Group 1 were 1.2 months and 3.8 kg, respectively, whereas in Group 2, they were 3.2 months and 6.7 kg, respectively. There were no significant differences in operative time (Group 1 = 34.1 min vs. Group 2 = 32.3 min, p = 0.26), anesthetic time (Group 1 = 80.0 min vs. Group 2 = 76.3 min, p = 0.07), length of hospitalization (Group 1 = 2.3 days vs. Group 2 = 2.4 days, p = 0.88), postoperative complications including omphalitis (Group 1 = 5.3% vs. Group 2 = 1.2%, p = 0.13), wound infection (Group 1 = 0.9% vs. Group 2 = 1.2%, p = 0.81), and hydrocele (Group 1 = 0.35% vs. Group 2 = 8.4%, p = 0.14). No recurrence, testicular ascent or atrophy, or mortality was observed in either group during the 2-year follow-up period. Single-incision laparoscopic herniorrhaphy is a safe and effective operation for inguinal hernia repair in infants, even those with prematurity, lower body weight at the time of surgery, or cardiac and/or pulmonary comorbidities. Comparable results revealed no significant differences in perioperative complications despite younger ages and lower body weights.

A comparison of operative and anesthetic techniques for inguinal hernia repair in infants

BackgroundPediatric inguinal hernia repair (IHR) is increasingly performed using minimally invasive surgery (MIS) but has only recently been described using caudal block without endotracheal intubation. We evaluated the surgical outcomes and resource utilization of infants undergoing hernia repair, comparing both the operative approach (open/MIS) and anesthetic technique (general anesthesia [GA]/caudal). MethodsAll infants <1 year-of-age undergoing elective IHR without concomitant procedures from July 2016 to July 2021 at a single tertiary care teaching center were retrospectively reviewed. Eight surgeons and 25 anesthesiologists contributed patients, with approach dictated by practitioner preference.Data collected included patient demographics, surgical and anesthetic details, and operating room (OR) utilization metrics. Post-operative complications were evaluated and aggregated, including recurrent hernia, metachronous hernia, hematoma, hydrocele, testicular atrophy, and acquired cryptorchidism. Descriptive statistics were performed with R Studios (p < 0.05). ResultsOf the 338 patients included for analysis, most underwent an open procedure (n = 275) while anesthetic technique was evenly split between GA (n = 185) and caudal (n = 153). Most patients were male (87.6%) and born premature: mean gestational age of 31.4 ± 4.1 weeks. MIS-to-Open conversion was noted once (3.3%) in the GA MIS group, but none in caudal. Median follow up was 2.5 (1.4–3.8) years. No differences were noted in aggregate surgical complication rates (p = 0.4). The Caudal Open group had the shortest total OR time (p < 0.01); caudal anesthesia shortened post-procedure times (p < 0.01). ConclusionMIS IHR performed under caudal block and sedation yields comparable complication rates compared to the open approach or GA. Open IHR with caudal blockade was the most efficient operative room utilization. Type of StudyOriginal Article, Clinical Research. Levels of EvidenceLevel III.

Laparoscopic versus Open Inguinal Hernia Repair Is Feasible in Infants with Caudal Anesthesia and Spontaneous Respiration.

Minimally invasive surgery (i.e., laparoscopy) and minimally invasive anesthesia (i.e., caudal anesthesia with spontaneous respiration) have separately shown benefits for inguinal hernia repair in infants, yet to what degree these techniques can be combined remains unknown. This study investigated whether laparoscopy impacts the feasibility of performing caudal anesthesia with spontaneous respiration in infants. Prospectively collected data of all infants less than 12 months old and over 3 kg weight who underwent laparoscopic indirect hernia repair (LAP) at our department from 2019 to 2021 were compared with a historical control-matched group of infants who underwent open repair (OPEN) from 2017 to 2021. We assessed the patients' characteristics, anesthesia, and surgical data as well as intra- and postoperative complications. A total of 87 infants were included (LAP n = 29, OPEN n = 58). Caudal anesthesia with spontaneous respiration was feasible in 62.1% of cases (LAP n = 55.2%, OPEN n = 65.5%; nonsignificant). Neither group registered anesthetic intra- or postoperative complications. Sedatives were utilized in 97% of LAP patients versus 56.9% of OPEN patients (p < 0.00001). The airway was secured with a laryngeal mask in 89.7% of patients during LAP versus 41.4% during OPEN (p < 0.00001). No significant differences were found regarding the use frequency of opioids (48.3% LAP vs. 34.5% OPEN; nonsignificant) or neuromuscular blockers (6.9% LAP vs. 5.2% OPEN; nonsignificant). This is the first comparative study on caudal anesthesia and spontaneous respiration in infants undergoing laparoscopic versus open inguinal hernia surgery. Laparoscopy increased the need for ventilatory support and sedatives but did not significantly impair the feasibility of caudal anesthesia and spontaneous respiration.

Laparoscopic versus open inguinal hernia repair in infants: an initial experience.

Inguinal hernia repair is a common operation performed in children. In Australia, open repair (OR) continues to be the preferred method of treatment in infants, despite laparoscopic repair (LR) gaining popularity amongst some international centres. Our aim was to analyse initial outcomes with LR at our paediatric centre. We conducted a retrospective review of all patients <1year of age who received LR or OR between January 2017 and July 2021 at our institution. Data were retrieved from both electronic and scanned medical records. Data were analysed using an unpaired t-test, Mann-Whitney test, Fisher's exact test or simple linear regression. A P-value <0.05 was considered significant. A total of 376 patients were identified: LR was performed in 73 patients, and OR in 303 patients. Bilateral repair was more common amongst patients receiving LR: 56.2% versus 21.5%, P= 0.0001, treating either a symptomatic hernia or an intra-operative contralateral inguinal defect (70%). All LR patients received general anaesthetic, compared to 82.8% of patients in the OR group, P= 0.0001. There were no recurrences following LR and 3 with OR (P= 1.0). The metachronous contralateral inguinal hernia rate following OR was 10% (21/206). There was no significant difference in other complications, including wound infection, haematoma, testicular atrophy, and hydrocele formation. In our population OR was performed more often than LR. Operative complication rates were equivalent between OR and LR groups. However, infants that underwent OR were significantly more likely to develop a MCIH.

Subcutaneous Endoscopic-Assisted Ligation of the Internal Ring for Inguinal Hernia Repair in Neonates Under Spinal Anesthesia.

Introduction: While laparoscopy is now widely accepted for inguinal hernia repair in infants, it traditionally has required general anesthesia. We sought to evaluate the safety of laparoscopic inguinal hernia repair in infants under spinal anesthesia. Materials and Methods: We performed a retrospective cohort study of all inguinal hernia repairs at a single institution between December 2011 and June 2019 in patients younger than 6 months of age. Four groups were compared: laparoscopic under general anesthesia, laparoscopic with spinal anesthesia, open with spinal anesthesia, and open under general anesthesia. Main outcome measures include operative time, cost, and postoperative outcomes. These were assessed using Kruskal-Wallis median comparison. Results: Of the 226 patients meeting inclusion criteria, 54% (122/226) of patients underwent general anesthesia, while 46% (104/226) had spinal. When compared to general anesthesia, spinal anesthesia was associated with significantly shorter procedure times (P < .01) and lower cost (P < .01) for both open and laparoscopic approaches. Complications were few and underpowered to calculate significance across each group. Conclusions: Laparoscopic inguinal hernia repair can be safely performed in infants under spinal anesthesia without significant compromise of early perioperative outcomes. Advantages may include shorter procedure time and lower cost.

Rectal prolapse and abdominal compartment syndrome: Formerly unknown complications of hernia repair in a neonate

Rectal prolapse, a troublesome diagnosis in children, can be associated with anatomic anorectal abnormalities among other pathologies, including parasitic infestations, cystic fibrosis, and constipation, but the precise mechanism remains unknown [1]. Abdominal compartment syndrome (ACS), however, is a potentially lethal complication in the pediatric population, with estimated case fatality rate of approximately 50% [2]. While cases of both rectal prolapse and ACS have been described in the pediatric surgical literature, occurrences of such diagnoses following inguinal hernia repair in infants have not been documented previously. Here we describe the unique hospital course of an infant with trisomy 21 who underwent two sequential inguinal hernia repairs, the first complicated by rectal prolapse, the second by ACS. • Rectal prolapse is a previously unknown acute complication of inguinal hernia repair in infants. • Abdominal compartment syndrome (ACS) is also a previously unknown complication of inguinal hernia repair in infants. • Future patients with tissue laxity may be better served by general anesthesia than spinal anesthesia.

Contralateral surgical exploration during inguinal hernia repair in infants (HERNIIA trial): study protocol for a multi-centre, randomised controlled trial

BackgroundThe incidence of metachronous contralateral inguinal hernia (MCIH) is high in infants with an inguinal hernia (5–30%), with the highest risk in infants aged 6 months or younger. MCIH is associated with the risk of incarceration and necessitates a second operation. This might be avoided by contralateral exploration during primary surgery. However, contralateral exploration may be unnecessary, leads to additional operating time and costs and may result in additional complications of surgery and anaesthesia. Thus, there is no consensus whether contralateral exploration should be performed routinely.MethodsThe Hernia-Exploration-oR-Not-In-Infants-Analysis (HERNIIA) study is a multicentre randomised controlled trial with an economic evaluation alongside to study the (cost-)effectiveness of contralateral exploration during unilateral hernia repair. Infants aged 6 months or younger who need to undergo primary unilateral hernia repair will be randomised to contralateral exploration or no contralateral exploration (n = 378 patients). Primary endpoint is the proportion of infants that need to undergo a second operation related to inguinal hernia within 1 year after primary repair. Secondary endpoints include (a) total duration of operation(s) (including anaesthesia time) and hospital admission(s); (b) complications of anaesthesia and surgery; and (c) participants’ health-related quality of life and distress and anxiety of their families, all assessed within 1 year after primary hernia repair. Statistical testing will be performed two-sided with α = .05 and according to the intention-to-treat principle. Logistic regression analysis will be performed adjusted for centre and possible confounders. The economic evaluation will be performed from a societal perspective and all relevant costs will be measured, valued and analysed.DiscussionThis study evaluates the effectiveness and cost-effectiveness of contralateral surgical exploration during unilateral inguinal hernia repair in children younger than 6 months with a unilateral inguinal hernia.Trial registrationClinicalTrials.govNCT03623893. Registered on August 9, 2018Netherlands Trial Register NL7194. Registered on July 24, 2018Central Committee on Research Involving Human Subjects (CCMO) NL59817.029.18. Registered on July 3, 2018

Complications while awaiting elective inguinal hernia repair in infants: Not as common as you thought

BackgroundThe dogma of early inguinal hernia repair in infants, especially those born prematurely, has dominated clinical practice owing to reports of a high frequency of incarceration and significant complications associated with untreated inguinal hernias. We aim to evaluate the frequency of complications after discharge with delayed surgery for inguinal hernia repair. MethodsThe Nationwide Readmissions Database (2010–2014) was queried to identify infants diagnosed with inguinal hernia. We compared the frequency and characteristics of inguinal hernia repair performed during the index admission, discharge from the index admission without hernia repair, and unplanned readmissions. ResultsWe identified 33,530 infants (16,624 preterm and 16,906 full-term) diagnosed with an inguinal hernia during an index admission. For those infants diagnosed with an inguinal hernia at birth, inguinal hernia repair was performed during the birth admission for only a minority of both preterm (35%) and full-term infants (18%; P < .001). Of the infants discharged without hernia repair, 15% required nonelective readmission up to 1 year later, but only 2% of preterm and 1% of full-term infants actually underwent inguinal hernia repair during these unplanned readmissions. None of the readmitted infants underwent additional procedures suggestive of a strangulated hernia. ConclusionComplications among infants awaiting inguinal hernia repair may be substantially less common than previously reported, and the occurrence of significant associated morbidity is quite rare.

Increasing Use of Laparoscopy for Inguinal Hernia Repair in Infants and Children

Increasing Use of Laparoscopy for Inguinal Hernia Repair in Infants and Children

Laparoscopic Inguinal Hernia Repair in Infants and Children: State-of-the-Art Technique.

AbstractPediatric inguinal hernia is one of the most common surgical conditions with open herniotomy being the gold standard of treatment. With the advances of laparoscopic surgery, it has emerged as an alternative to open repair with reported good results. However, laparoscopic hernia repair is not yet a routine procedure in many centers, and debate of laparoscopic versus open repair still exists. After 20 years of development of laparoscopic hernia repair, different techniques have been described with no consensus on the standard technique right now. This article reviews the latest updates of laparoscopic repair from the current evidence in the literature. Laparoscopic management of hernia in premature/small infants and hernia incarceration are also discussed here.

Fifteen Years Experience with Laparoscopic Inguinal Hernia Repair in Infants and Children.

Laparoscopic inguinal hernia repair (LIHR) is gaining popularity with more studies validating its feasibility, safety, and efficacy. The aim of this work is to review our experience with LIHR in infants and children during the past 15 years, and present and evaluate our innovations of laparoscopic techniques. A retrospective study of 1284 patients with congenital inguinal hernia (CIH) subjected to different techniques of LIHR from October 2000 to October 2015. The main outcome measurements included the following: operative time, hospital stay, hernia recurrence, hydrocele formation, testicular atrophy, iatrogenic ascent of the testis, and cosmetic results. All patients with CIH who were managed by LIHR during the period of study. They were bilateral cases, recurrent hernias, unilateral hernia in obese child, unilateral hernia with associated infantile umbilical hernia, and unilateral hernia with questionable contralateral side. A total of 1284 patients with CIH were corrected with different laparoscopic procedures. They were 918 males and 366 females. The age range was variable from 6 to 78 months (mean 28.32 ± 24.46 months). All cases were completed laparoscopically without major intraoperative complications. Contralateral hernial defects were found in 294 patients (22.90%), a direct inguinal hernia (IH) was discovered in 15 patients (1.17%), and a femoral hernia was discovered in 3 patients (0.23%). Recurrence occurred in 9 boys (0.98%) who were among the early cases; however, in later group, no recurrence had been detected. Hydrocele occurred in 19 cases (males) (2.07%), without detection of testicular atrophy or iatrogenic ascent of the testis. Our results lead us to believe that LIHR by expert hands is safe and effective. It enables the surgeon to discover and repair contralateral hernia and all forms of IHs. One should be able to tailor a suitable technique for each case according to the resources and expertise.

One trocar needlescopic assisted inguinal hernia repair in children: a novel technique

BackgroundInguinal hernia repair using a percutaneous internal ring suturing technique is an effective alternative technique to conventional laparoscopic hernia repair. It is one of the most commonly used approaches for laparoscopic hernia repair in children. However, most percutaneous techniques have utilized extracorporeal knotting of the suture and burying the knot subcutaneously. This approach has several drawbacks. The aim of this study is to present a modified technique for single cannula needlescopic assisted hernia repair in children. Patients and methodsThree-hundred and fifty-seven patients with 397 indirect inguinal hernias underwent a one port needlescopic assisted inguinal hernia repair. The open internal inguinal ring [IIR] was closed using an 18-gauge epidural needle [EN], a 14-gauge venous access cannula [VAC], and a homemade suture device. Saline was injected extraperitoneally around the IIR for hydrodissection. The main outcome measurements were: feasibility, safety of the technique, operative time, recurrence rate, and cosmetic results. ResultsThis prospective study was conducted on 357 patients at Al-Azhar, Alexandria, and Mansoura University Hospitals during the period from June 2012 to October 2015. There were 286 males and 71 females. The mean age was 2.6±1.3years (range=4months to 6years). One-hundred and ninety-eight patients presented with a right-sided inguinal hernia, 119 patients with a left-sided hernia, and 40 patients with bilateral inguinal hernia. The mean operative time was 12.6±1.7min (range=8–15min) for unilateral cases and 18.6±1.7min (range=14–20min) for the bilateral repairs. No wound complications or umbilical hernias developed. The mean follow-up period was 18.6±1.2months (range=11–36months). During the follow-up period, no recurrence was detected, and the scars were nearly invisible. ConclusionThis preliminary study shows that a single port needlescopic assisted hernia repair in infants and children is a very promising technique to achieve nearly scarless surgery. The procedure is very safe, rapid, easy to learn, and reproducible.

Laparoscopic pediatric inguinal hernia repair: a controlled randomized study

BackgroundInguinal hernia repair is one of the most frequently performed surgical procedure in infants and young children. Laparoscopic hernia repair in infancy and childhood is still debatable. There are many techniques available for laparoscopic hernia repair in pediatrics. The aim of the study is to compare laparoscopic intracorporeal purse-string suture ligation of the hernia defect leaving the sac intact versus disconnection of the hernia sac with intracorporeal suturing of proximal part. Patients and methodsA prospective controlled randomized study of laparoscopic repair of congenital inguinal hernia (CIH) was conducted over a period of 2years and 8months from April 2014 to December 2016. All patients were randomized into two equal groups: Group I (n=66) received intracorporeal purse string suture ligation of the hernia sac at internal inguinal ring [IIR] leaving the sac intact; and Group II (n=66) received disconnection of the hernia sac with intracorporeal suture of proximal part at IIR. Inclusion criteriaMale patient with bilateral CIH, questionable other side, cases of CIH associated with umbilical hernia and parental request. Exclusion criteriaRecurrent cases, complicated cases, hernia of canal of Nuck in females, inguinal hernia with undescended testis, parental refusal. The main outcome measurements were operative time, postoperative hydrocele formation, recurrence rate. ResultsThis study included 132 patients with 157 hernia defects. Their age ranged from 6months to 3years. Statistically significant differences regarding the demographic data of the groups. All cases were completed successfully without conversion. There was no statistically significant difference between groups regarding intraoperative complications and hospital stay. There was statistically significant difference in the operative time and post-operative complications between the studied groups. ConclusionsLaparoscopic inguinal hernia repair by disconnection of the hernia sac at the IIR with peritoneal closure is safe and feasible method. It has a lower recurrence rate than the purse string suturing leaving the sac intact.

Testicular Ischemia Caused by Incarcerated Inguinal Hernia in Infants: Incidence, Conservative treatment procedure, and Follow-up.

Testicular ischemia and necrosis, especially in the infant age, may result from incarcerated inguinal hernia. Duration of ischemia is a significant factor for the affected testicle. We aimed to present a case series on the conservative management in the testicular ischemia caused by incarcerated inguinal hernia. Inguinal hernia repairs performed in between March 2009 and December 2014 were investigated retrospectively. Patients' characteristics, hernia side, incarceration, testicular ischemia and complications were recorded. Color Doppler ultrasonography was performed in the incarcerated inguinal hernia patients preoperatively and was repeated on 3 and 7 days and then at 1, 3 and 6 months postoperatively. The testicle sizes, volumes, and arterial flow patterns of them were recorded at the same time. Total 785 inguinal hernias were treated in 738 male patients, ranging from 18 days to 16 years. From all male patients, 44 (5.9%) had the IIH. There were 16 (36.3%) irreducible hernias in 44 incarcerated hernia patients. Of these 16, testicular ischemia was determined in 9 (56.2%) infants with the irreducible incarcerated hernia. Orchidopexyprocedure was performed in these patients. Testicular atrophy was occurred in two patients (22.2%). In the others, testicular volumes and perfusions were normal during follow-up (mean 8.3 &plusmn; 2.2 months). Testicular ischemia resulting from incarcerated inguinal hernia may be treated conservatively without orchiectomy for the ischemic testicle and testicular ischemia may be followed with color Doppler ultrasound for atleast 6 months. The inguinal hernia repair in infants should be subject to urgent surgery rather than elective surgery. So, the testicular ischemia in infants with the inguinal hernia will be an avoidable complication.

Y-to-V umbilicoplasty for proboscoid umbilical hernia

Background / purpose Several techniques are proposed for reconstruction of proboscoid umbilical hernia in the pediatric patients. In this work, we reported our experience with Y-to-V umbilicoplasty in the surgical repair of proboscoid umbilical hernia in infants and children. Patients and methods A 3-year prospective study included 15 children presented with proboscoid umbilical hernia. A skin marker was used to draw the lines of skin incisions. ‘Y’ incision was done starting with the vertical limb. The facial defect was repaired. Lateral twin isosceles triangular flaps were excised. A new umbilical valley was reconstructed by one or two subcutaneous stitches of the residual umbilical flap fixing the flap’s summit to the aponeurosis plane. We appreciated the results as excellent, fair or bad according to criteria of the peripheral rim (raised, flattened or depressed) and the central depression (deep, shallow or absent). Results This study included 10 boys and 5 girls. Their ages ranged from 1 to 7 years at the time of surgery. The mean duration of the operation was 45 min and the mean hospitalization stay was 1 day. The early results were excellent in all cases. Follow-up period continued for 6 months and revealed a natural-looking umbilicus with excellent peripheral rim and central depression. Conclusion Y-to-V umbilicoplasty in the surgical repair of proboscoid umbilical hernia in infants and children is simple and easy to design and carried out with excellent aesthetic results.

Comparative study between purse–string suture and peritoneal disconnection with ligation techniques in the laparoscopic repair of inguinal hernia in infants and children

Background Laparoscopic hernia repair in children is becoming more popular nowadays. A lot of laparoscopic techniques were described to repair inguinal hernia in infants and children; however, there are few reports on laparoscopic disconnection of the hernia sac at internal inguinal ring (IIR) as a method for hernia repair. Purpose The objective of this study was to compare intracorporeal purse–string suturing leaving the hernia sac in continuity and laparoscopic disconnection of the hernia sac at IIR and proximal closure of the peritoneum for repair of inguinal hernia in infants and children. A randomized prospective study was carried out in the Pediatric Surgery Unit of Alexandria University Hospitals (Alexandria, Egypt) on 40 male children. Patients and methods Forty male patients (48 repairs) were randomized into two equal groups (n= 20). Group A was subjected to intracorporeal purse–string suturing around the IIR leaving the hernia sac in continuity. Group B was subjected to disconnection of the hernia sac from the parietal peritoneum at the level of IIR, followed by proximal closure of the peritoneum. Inclusion criteria were as follows: male inguinal hernia, either unilateral or bilateral, and age between 6 months and 12 years. Exclusion criteria were as follows: female inguinal hernia, hernia with undescended testicles, recurrent inguinal hernia, and previous major lower abdominal surgery. The main outcome measurement was recurrence, and secondary outcome measurements were operative time, hospital stay, intraoperative complications, postoperative hematoma, postoperative testicular atrophy, and postoperative hydrocele formation. Results There were no significant differences between the two groups as regards age, sex, and mode of presentation. All cases were completed laparoscopically without conversion. Group A showed a significantly higher rate of recurrence as well as hydrocele formation compared with group B; however, there was no difference as regards the operative time, hospital stay, and testicular atrophy. Conclusion Laparoscopic hernia repair using the peritoneal closure following disconnection of the hernia sac is a safe and feasible method for hernial repair with minimal complications. It has a lower recurrence rate compared with the purse–string suturing alone, with no added risk for injury to the vas and vessels.

Twenty-year experience with laparoscopic inguinal hernia repair in infants and children: considerations and results on 1833 hernia repairs.

The role of laparoscopy in pediatric inguinal hernia (IH) is still controversial. The authors reported their twenty-year experience in laparoscopic IH repair in children. In a twenty-year period (1995-2015), we operated 1300 infants and children (935 boys-365 girls) with IH using laparoscopy. The average age at surgery was 18months (range 7days-14years). Body weight ranged between 1.9 and 50kg (average 9.3). Preoperatively all patients presented a monolateral IH, right-sided in 781 cases (60.1%) and left-sided in 519 (39.9%). We excluded patients with bilateral IH and unstable patients in which laparoscopy was contraindicated. If the inguinal orifice diameter was ≥10mm, we performed a modified purse string suture on peri-orificial peritoneum, in orifices ≤5mm, we performed a N-shaped suture. No conversion to open surgery was reported. In 533 cases (41%), we found a contralateral patency of internal inguinal ring that was always closed in laparoscopy. In 1273 cases (97.9%), we found an oblique external hernia; in 21 cases (1.6%), a direct hernia; and in 6 cases (0.5%), a double hernia on the same side (hernia en pantaloon). We found an incarcerated hernia in 27 patients (2%). Average operative time was 18min (range 7-65). We recorded 5/1300 recurrences (0.3%), but in the last 950 patients, we had no recurrence (0%). We recorded 20 complications (1.5%): 18 umbilical granulomas and two trocars scar infections, treated in outpatient setting. On the basis of our twenty-year experience, we prefer to perform IH repair in children using laparoscopy rather than inguinal approach. Laparoscopy is as fast as inguinal approach, and it has the advantage to treat during the same anesthesia a contralateral patency occured in about 40% of our cases and to treat also rare hernias in about 3% of cases.

A pilot study of dexmedetomidine sedation and caudal anesthesia for inguinal hernia repair in infants.

Recent concerns regarding possible long-term effects of early anesthesia exposure on neurodevelopment in children have provided an impetus to explore alternative anesthetic techniques using potentially neuroprotective agents. Dexmedetomidine has not been implicated in anesthesia-induced neurotoxicity and has been shown to be neuroprotective in preclinical studies. We describe a case series of 50 neonates and infants who received dexmedetomidine sedation with caudal anesthesia instead of general endotracheal anesthesia for inguinal hernia surgery. We conducted a retrospective chart review on all neonates and infants who underwent inguinal hernia surgery with dexemetomidine sedation and caudal anesthesia in our institution. We started exploring this technique since October 2011 and established a protocol of administering dexmedetomidine 2 mcg·kg(-1) over 10 min, followed by 1 mcg·kg(-1) over the next 10 min. This led to satisfactory conditions for caudal placement in 20 min, with minimal need for airway intervention during surgery. The median gestational age of the infants was 31.4 (28.7, 36.0) weeks and median postconceptual age was 39.7 weeks (IQR 37.8, 45.7) at time of surgery. Of patients, 86% had surgery successfully completed under this technique alone. Seven patients required sevoflurane or nitrous oxide due to failed caudal block (n = 1) or difficult or prolonged surgery (n = 6). After establishing the sedation protocol and excluding patients with large or complicated hernias, the success rate was 96%. Transient intra-operative apnea or hypoventilation occurred in five patients and postoperative apnea in two patients. All respiratory events were easily reversed and no patient developed significant bradycardia or required intubation. Dexmedetomidine sedation with caudal anesthesia is a feasible alternative to spinal or general anesthesia in selected infants undergoing uncomplicated hernia surgery. It avoids the need for endotracheal intubation and may be potentially beneficial in avoiding the unknown effects of general anesthesia on neurodevelopment.

Is routine reinforcement of the posterior inguinal wall necessary for laparoscopic inguinal hernia repair in children? Comment to: Technical refinement of mini-laparoscopic hernia repair in infants and children. Tsai YC, Da Lin C, Chueh SC (2014) Hernia, DOI 10.1007/s10029-014-1327-4.

We studied the paper titled ‘‘Technical refinement of minilaparoscopic hernia repair in infants and children’’ by Tsai et al. [1] with great interest. They rightly consider that the 2–4 % recurrence rate of laparoscopic hernia repair (LHR) performed through ligation of the processus vaginalis (PV) alone is disappointing. One should expect at least the same results as in the open herniotomy procedures (1 % recurrence rate) [1], by applying the same principles to a laparoscopic setting. We fully agree with their strategy to establish a solid musculofascial block by approximation of the transversalis arch to the iliopubic tract at the region of the deep inguinal ring (DIR), to improve the results. Ourselves, we performed a similar technique on 80 patients (113 hernia repairs), aged from 10 days to 15 years (mean 4.5 years) and these children are followed up from 6 months to 5.5 years (mean 2.5 years) and no recurrence has been observed [2]. We continue to operate with this procedure until now. Our interference has to do with the question dealt in the introduction of the paper: why does PV ligation in children produce different results when performed openly and when performed laparoscopically? The authors incriminate the presence of femoral or direct inguinal hernias or inability to recognize a widened DIR, in which cases a simple PV ligation would not suffice. In our opinion, the answer lies in the fact that some manoeuvres performed during simple open herniotomy in children are not duly acknowledged, are performed as rituals, and are considered unworthy to be copied and applied in the LHR. These manoeuvres, when applied in open surgery, have a considerable effect on the abdominal wall anatomy, blocking the abdominal outlets. If these effects are not reproduced during LHR by some other equivalent way, the abdominal wall will retreat. As an audit has confirmed, North American pediatric surgeons practicing open hernia repair perform either an inguinal plasty or narrowing or closure of the DIR in 29 % of boys and 51 % of girls with inguinal hernia (IH) [3]. Furthermore, the twisting of the processus vaginalis stump before its ligation, during the open procedure, causes an approximation of its rim which is in contact with the transversalis fascia, causing the contraction of the circumference of the DIR [4, 5]. This manoeuvre is practiced by 66 % of pediatric surgeons [3]. Tsai et al. reproduce these effects in a much more robust way, by approximation of the transversalis arch to the iliopubic tract and consequently are happy to see no recurrences. In conclusion, it is almost certain that, for the LHR procedures to produce equivalent or better results than the open procedures, in matters of recurrence, a strengthening This letter refers to the publication: Tsai YC, Da Lin C, Chueh SC (2014) Technical refinement of mini-laparoscopic hernia repair in infants and children. Hernia [Epub ahead of print]. doi:10.1007/s10029-014-1327-4.