Prognostic factors indicating survival with native liver after Kasai procedure for biliary atresia

Background

The number of the bile ducts in the portal canal/measured surface area of the portal canal (BDP ratio) indicates prognosis in biliary atresia (BA), as does an elevated cytokeratin 7 positivity percentage (PCK7). We compared these two markers.

Methods

We reviewed 32 BA cases undergoing Kasai operation from 1976 to 2016 with >5 portal canals in biopsy samples. Group I required liver transplantation or died within a year of operation (n = 8). Group II survived with their native liver (n = 24). We determined the BDP ratio (10²/mm²) and PCK7 (%), subdividing patients into three groups by their age at operation: Group A ≤60 days (n = 6, 1 Group I), 60< Group B ≤90days (n = 16, 5 Group I), Group C >90 days (n = 10, 2 Group I).

Results

PCK7 (%) was 2.71 ± 1.87 in Group I and 4.25 ± 2.56 in Group II (p = 0.13). BDP ratio (10²/mm²) was 1.19 ± 0.424 in Group I and 1.64 ± 0.534 in Group II (p = 0.04). Both markers were higher in Group C than in Group A or B (p < 0.01).

Conclusion

The BDP ratio is a better prognostic indicator than PCK7 in BA.

     

Posterior sagittal anorectoplasty in vestibular fistula: with or without colostomy

Purpose

The aim of this study is to compare the results and complications of one- and three-stage repairs in females with vestibular fistula (VF) and make contribution to the discussion of whether the disadvantages outweigh the protective effect of a colostomy from wound infection and wound dehiscence following posterior sagittal anorectoplasty (PSARP).

Methods

Patients with a diagnosis of VF who underwent PSARP between October 2009 and November 2015 were retrospectively reviewed. The patients were divided into two groups: Group 1—patients treated by one-stage procedure (n = 30); Group 2—patients treated by three-stage procedure (n = 16).

Results

There were no statistically significant differences between the groups with respect to wound infection, recurrence of fistula and rectal mucosal prolapse. Minor wound dehiscence occurred slightly more common in Group 1, even if p value is not significant. No wound dehiscence has been observed since we switched to the protocol of keeping the child nil per oral for 5 postoperative days and loperamide (0.1 mg/kg) administration for 7 postoperative days. The mean time before resuming oral intake was 2.87 ± 1.7 and 1.19 ± 0.4 days in Group 1 and Group 2, respectively (p = 0.001). None developed major wound disruption or anal stenosis in either group. There were no statistical differences between the groups in terms of voluntary bowel movements, soiling and constipation.

Conclusions

PSARP performed without a protective colostomy in patients with VF has low morbidity, good continence rates and obvious advantages for both the patients and their parents.

     

Staged segmental urethroplasty for scrotal/perineal hypospadias: a new concept

Purpose

We report the efficacy of staged segmental urethroplasty (SSUP) versus non-staged urethroplasty (NSUP) for treating scrotal/perineal hypospadias (SPH).

Methods

Between 1997 and 2015, 29 SPH patients underwent UP (SSUP: n = 15; NSUP: n = 14). Incidences of urethrocutaneous fistula (UF), stenosis of the neourethra (SNU), diverticula formation, and residual chordee (RC) were compared. Differences were statistically significant if p < 0.05.

Results

The difference in mean age at NSUP (3.2 ± 1.3 years) and at the final stage of SSUP (5.5 ± 2.4 years) was significant (p < 0.05). Mean operative times for NSUP and SSUP (total for all stages) were not significantly different (231.5 ± 117.5 versus 272.5 ± 99.4 min); however, the incidence of postoperative complications was significantly less in SSUP (n = 1; UF) compared with NSUP (n = 6; 2 cases of UF, 3 cases of SNU, and 1 case of RC; (p < 0.05). Mean follow-up was significantly shorter in SSUP; 1.4 ± 1.2 years versus 7.0 ± 4.5 years in NSUP (p < 0.05).

Conclusion

SSUP would appear to be effective for treating SPH because of a significantly lower incidence of UF, SNU and RC during the first postoperative year, the period when complications have been reported to arise most frequently.

     

MR elastography: high rate of technical success in pediatric and young adult patients

Background

Magnetic resonance (MR) elastography allows the noninvasive assessment of liver stiffness, which is a surrogate for fibrosis.

Objective

The purpose of this study was to describe our experience using liver MR elastography in a large pediatric population with attention to the frequency and causes of exam failure.

Materials and methods

Imaging records were searched for patients ≤18 years of age who underwent 2-D gradient recalled echo (GRE) MR elastography of the liver between September 2011 and August 2015 on one of two 1.5-T MRI platforms. Imaging reports and clinical records were reviewed for failed MR elastography acquisitions, factor(s) resulting in failure and whether a subsequent successful examination had been performed.

Results

Four hundred sixty-eight MR elastography examinations were performed in 372 patients between 1.5 months and 18 years of age during the study period. Ninety-six percent (450/468) of the examinations were successful. There was no significant difference in mean age (12.6±3.6 vs. 11.2±4.1 years, P=0.12) or body mass index (BMI) (28.2±12.4 vs. 29.5±10 kg/m², P=0.6) between patients with and without successful examinations. MR elastography failures were due to poor paddle positioning resulting in inadequate generation of hepatic shear waves (n=5), iron overload (n=4), patient inability to tolerate MRI (n=3), patient breathing/motion (n=3), artifact from implanted hardware (n=1) and technical malfunction (n=2). Seven of nine (78%) repeat examinations were successful (78%).

Conclusion

Hepatic 2-D GRE MR elastography at 1.5 T is technically robust in children. Exam failure is infrequent and largely reflects patient specific factors, some of which can be mitigated with careful technique.

     

TLR4 preconditioning is associated with low success of OK-432 treatment for lymphatic malformations in children

Purpose

We have recently shown that the relative TLR4 expression on monocytes of low responding pediatric patients after OK-432 treatment is significantly reduced after stimulation with lipopolysaccharide (LPS) compared with high responding children. The aim of this study was to perform further analysis to explain this observation.

Methods

Monocytes from children with high (HR, n = 5) and low response (LR, n = 6) after previous OK-432 treatment were stimulated with LPS for 20 h and analyzed with fluorescence-activated cell sorting (mean fluorescence intensity, MFI; level of significance P ≤ 0.05).

Results

Mean MFI after LPS stimulation was comparable in both groups (HR 1142 ± 652 units, LR 839 ± 427 units, P = 0.85). Significant changes after LPS stimulation are explained by higher pre-stimulation values in the LR group compared with the HR group (950 ± 718 vs. 477 ± 341, P = 0.25) with considerable differences of the mean expression changes after LPS stimulation (HR 665 ± 683 vs. LR ?111 ± 605, P = 0.08).

Conclusion

The previously shown reduced TLR4 upregulation on monocytes after LPS stimulation in the LR group compared with the HR group can be primarily explained by TLR preconditioning. This observation implies the use of absolute values with definite thresholds.

     

Macronutrients in breastmilk of mothers of preterm infants

Objectives

To evaluate the variability in macronutrient and energy content of breastmilk of Indian women delivering at ≤34 weeks of gestation.

Methods

In this cross-sectional study, samples of breastmilk expressed manually for feeding of preterm neonates were collected from 106 mothers at 3±1 (n=26), 7±2 (n=34), 14±2 (n=24), 21±3 (n=12) and 28±3 (n=10) days after birth. Protein, fat and carbohydrate content were estimated and total energy content was calculated.

Results

Protein content in the human milk declined from 4.1±2.1 g/dL on the 3rd postpartum day to 2.2±0.6 g/dL by the 28th day postpartum. Lactose (from 2.2±0.7 g/dL to 3.0±0.9 g/dL), fat (1.9±1.8 g/dL to 3.4±2.1 g/dL) and energy (42.3±18.8 Kcal/dL to 51.9±21.5 Kcal/dL) contents increased from day 3 to day 28.

Conclusions

Preterm human milk has high temporal and inter-individual variation in the macronutrient composition and without fortification is unlikely to meet the nutritional requirement of preterm neonates.

     

The effect of the broad-spectrum antibiotics for prevention of postoperative intra-abdominal abscess in pediatric acute appendicitis

Background

We investigated the efficacy of broad-spectrum antibiotics for prevention of postoperative intra-abdominal abscess in pediatric acute appendicitis with our 3 risk factors:—WBC?>?16.5 (×?10³/µl), CRP?>?3.1 (mg/dl) and appendix maximum short diameter on diagnostic imaging?>?11.4 mm.

Methods

Four hundred twenty-two patients were reviewed. Patients with 0–1 risk factors were assessed as low-risk and those with 2–3 were high-risk. In the low-risk group, Group A (n?=?66) patients received broad-spectrum antibiotics and Group B patients (n?=?265) received narrow-spectrum monotherapy. In the high-risk group, Group C patients (n?=?63) received broad-spectrum antibiotics and Group D patients (n?=?28), narrow-spectrum antibiotics. The outcomes were the incidence of postoperative abscess and the total duration of intravenous (IV) antibiotics.

Results

The incidence of intra-abdominal abscess was 6.06% in Group A versus 1.89% in Group B (p?=?0.08), and 19.05% in Group C versus 3.57% in Group D (p?=?0.06). Total IV antibiotic duration (days) were 6.12?±?2.87 in Group A versus 3.83?±?0.69 in Group B (p?<?0.01), and 7.84?±?4.57 in Group C versus 4.00?±?0.82 in Group D (p?<?0.01).

Conclusion

Broad-spectrum antibiotics did not prevent postoperative intra-abdominal abscess in either low or high-risk groups.

     

Pancreatic surgery for tumors in children and adolescents

Purpose

Pancreatic neoplasms are uncommon in children. This study sought to analyze the clinical and pathological features of surgically resected pancreatic tumors in children and discuss management strategies.

Methods

We conducted a retrospective review of patients ≤21 years with pancreatic neoplasms who underwent surgery at a single institution between 1995 and 2015.

Results

Nineteen patients were identified with a median age at operation of 16.6 years (IQR 13.5–18.9). The most common histology was solid pseudopapillary neoplasm (SPN) (n = 13), followed by pancreatic neuroendocrine tumor (n = 3), serous cystadenoma (n = 2) and pancreatoblastoma (n = 1). Operative procedures included formal pancreatectomy (n = 17), enucleation (n = 1) and central pancreatectomy (n = 1). SPNs were noninvasive in all but one case with perineural, vascular and lymph node involvement. Seventeen patients (89.5 %) are currently alive and disease free at a median follow-up of 5.7 (IQR 3.7–10.9) years. Two patients died: one with metastatic insulinoma and another with SPN who developed peritoneal carcinomatosis secondary to a concurrent rectal adenocarcinoma.

Conclusions

Pediatric pancreatic tumors are a heterogeneous group of neoplastic lesions for which surgery can be curative. SPN is the most common histology, is characterized by low malignant potential and in selected cases can be safely and effectively treated with a tissue-sparing resection and minimally invasive approach.

     

Citation classics in pediatrics: a bibliometric analysis

Background

Citation analysis provides insights into the history and developmental trajectory of scientific fields. Our objective was to perform an analysis of citation classics in the journals of pediatric specialty and to examine their characteristics.

Methods

Initially, all the journals listed under the category of pediatrics (n = 120) were identified using Journal Citation Reports. Web of science database was then searched (1950–2016) to select the top-100 cited articles in the above identified pediatric journals. The top-100 cited article were categorized according the study design, sub-specialty, country, institutional affiliation, and language.

Results

The top-100 articles were published in 18 different journals, with Pediatrics having the highest numbers (n = 40), followed by The Journal of Pediatrics (n = 17). The majority (n = 62) of classics were published after 1990. The most cited article had citation count of 3516 and the least cited had a citation count of 593. The USA (n = 71) was the most commonly represented country, and 60 institutions contributed to 100 articles. Fifteen authors contributed to more than one classic as first or second author. Observational study (n = 55) was the commonest study design across all decades, followed by reviews (n = 12), scale development studies (n = 11), and guidelines (n = 11). Among the pediatric sub-specialties, growth and development articles were highly cited (n = 24), followed by pediatric psychiatry and behavior (n = 21), endocrinology (n = 15), and neonatology (n = 12).

Conclusions

The top-100 cited articles in pediatrics identify the impactful authors, journals, institutes, and countries. Observational study design was predominant—implying that inclusion among citation classics is not related to soundness of study design.

     

Correction of penile ventral curvature in patients with minor or no hypospadias: a single surgeon’s experience of 43 cases

Purpose

To report our experience of correcting penile ventral curvature associated with minor or no hypospadias.

Methods

We reviewed 43 penile ventral curvature patients treated by a single surgeon from 1997 to 2015. Of these, 23 had minor hypospadias. Curvature was corrected using degloving, chordectomy, dorsal plication (DP), tunica albuginea incision (TAI), or a combination of these. Outcome was confirmed by induced artificial erection and post-operative appearance.

Results

Mean age at curvature correction was 3.2 ± 2.6 years. 17/43 had degloving and chordectomy (DC), 16/43 had DP after DC, and 10/43 had TAI after DC, because of ventral shortening and severe curvature caused by a short hypoplastic urethra. Other procedures required were primary meatoplasty (n = 4) and urethroplasty (UP; n = 1) at the time of curvature correction, and UP after correction of curvature (n = 11). Complications included recurrence of curvature after DP (n = 3/16; 18.8 %) and urethral stenosis after UP with tubed peritoneum (n = 1/10; 10 %). There were no recurrences of curvature in TAI cases. Parents reported penile cosmesis as good (n = 38; 88.4 %), acceptable (n = 4; 9.3 %), or poor (n = 1; 2.3 %).

Conclusion

We recommend TAI followed by UP for correcting penile ventral curvature with short hypoplastic urethra. Tubed peritoneum is not recommended for UP.

     

Improved outcomes after technical modifications in tubularized incised plate urethroplasty for mid-shaft and proximal hypospadias

Purpose

To investigate and compare the outcomes after tubularized incised plate (TIP) urethroplasty in mid-shaft and proximal hypospadias using a standard and a modified technique.

Methods

We conducted a retrospective study in 104 consecutive children who underwent mid-shaft or proximal TIP repairs from Jan 2007 to Sept 2015. Patients in Cohort One had dorsal dartos (DD) neourethral coverage while patients in Cohort Two had either de-epithelialized split preputial (DESP) or tunica vaginalis (TV) flap coverage. TV flap was used only when DESP flap was not sufficient to cover the neourethra.

Results

There were 52 patients each in Cohort One (DD, n = 52) and Cohort Two (DESP, n = 38; TV, n = 14) with no difference in ratio of mid-shaft/proximal between the two cohorts. At a median follow-up of 28 months, 36 patients (34.6 %) developed 47 complications including fistula (n = 19; 18.3 %) and neourethral dehiscence (n = 4; 3.8 %). Cohort One patients had significantly more fistula (28.8 vs 7.7 %; p = 0.005) and neourethral dehiscence (7.7 vs 0 %; p = 0.04) than Cohort Two. There was no difference between the two cohorts in the complication rates of meatal stenosis, recurrent ventral curvature and neourethral stricture.

Conclusions

Both DESP and TV flap appear to be superior to DD in preventing fistula and neourethral dehiscence in non-distal TIP repairs.

     

Indications and outcomes for tunneled central venous line placement via the axillary vein in children

Purpose

To assess the indications, safety and outcomes of tunneled central venous catheters (CVCs) placed via a cutdown approach into the axillary vein in children, an approach not well described in this population.

Methods

A retrospective cohort study was performed on pediatric patients who received CVCs via open cannulation of the axillary vein or one of its tributaries between January 2006 and October 2016 at two hospitals.

Results

A total of 24 axillary CVCs were placed in 20 patients [10 male (42%); mean weight 7.0 kg (SD 2.9); mean age 10 months (SD 6)]. The most common indications for axillary vein access included neck or chest wall challenges (tracheostomies or chest wall wounds) (n = 18). The median duration of line placement was 140 days (IQR 146). The most common indications for removal were completion of therapy (n = 7, 39%) and infection (n = 5, 28%). There were no early complications. Long-term complications included infection (n = 5) or catheter malfunction (n = 3).

Conclusions

Tunneled CVC placement via a cutdown approach into the axillary vein or its tributary can be an effective alternative approach to obtain long-term vascular access in children. Outcomes may be comparable to lines placed in traditional internal jugular and subclavian vein locations.

     

Vitamin D Status in Infants with Two Different Wheezing Phenotypes

Objective

To investigate vitamin D levels in patients with recurrent wheeze at early ages of childhood.

Methods

In the present cross-sectional study, serum 25-hydroxy vitamin D [25 (OH)D], levels which is known as an indicator of vitamin D adequacy, was examined in infants with three or more wheezing attacks.

Results

A total of 186 infants with recurrent wheezing were included in the study along with 118 healthy control peers. The recurrent wheezing study participants were classified into two groups according to Asthma Predictive Index (API) positivity and compared to control subjects regarding their serum vitamin D status. The API negative group had the lowest mean serum 25 (OH)D level (n = 121; 22.71 ± 10.76 ng/ml) followed by API positive group (n = 65; 24.08 ± 9.02 ng/ml) compared to healthy group (26.24 ± 11.88 ng/ml) (p < 0.05). In addition, higher vitamin D deficiency was observed in infants in API negative group (52.1 %; p < 0.01) and API positive group (38.5 %; p < 0.05) than control group (31.4 %).

Conclusions

Low levels of 25 (OH)D were detected in infants with two different phenotypes of recurrent wheeze. Vitamin D deficiency may play a role in the pathogenesis of infants with recurrent wheezing.

     

The impact of surgical strategies on outcomes for pediatric chronic pancreatitis

Purpose

To review our institutional experience in the surgical treatment of pediatric chronic pancreatitis (CP) and evaluate predictors of long-term pain relief.

Methods

Outcomes of patients ≤21 years surgically treated for CP in a single institution from 1995 to 2014 were evaluated.

Results

Twenty patients underwent surgery for CP at a median of 16.6 years (IQR 10.7–20.6 years). The most common etiology was pancreas divisum (n = 7; 35%). Therapeutic endoscopy was the first-line treatment in 17 cases (85%). Surgical procedures included: longitudinal pancreaticojejunostomy (n = 4, 20%), pancreatectomy (n = 9, 45%), total pancreatectomy with islet autotransplantation (n = 2; 10%), sphincteroplasty (n = 2, 10%) and pseudocyst drainage (n = 3, 15%). At a median follow-up of 5.3 years (IQR 4.2–5.3), twelve patients (63.2%) were pain free and five (26.3%) were insulin dependent. In univariate analysis, previous surgical procedure or >5 endoscopic treatments were associated with a lower likelihood of pain relief (OR 0.06; 95% CI 0.006–0.57; OR 0.07; 95%, CI 0.01–0.89). However, these associations were not present in multivariate analysis.

Conclusion

In children with CP, the step-up practice including a limited trial of endoscopic interventions followed by surgery tailored to anatomical abnormalities and gene mutation status is effective in ensuring long-term pain relief and preserving pancreatic function.

     

Preservation of native esophagus in infants with pure esophageal atresia has good long-term outcomes despite significant postoperative morbidity

Purpose

To evaluate long-term outcomes of pure esophageal atresia (EA) repair with preservation of native esophagus.

Methods

Infants with pure EA treated at our institution (2000–2010) and with minimum 5-year follow-up were reviewed (REB:1000046653). Data analysed included demographics, management and outcomes and are reported as mean ± SD/median (range).

Results

Of 185 infants with EA, 12 (7 %) had pure EA (gestational age: 36 ± 2.4 weeks, birth weight: 2353 ± 675 g). Ten had associated anomalies, including trisomy-21 (n = 2) and duodenal atresia (n = 1). Surgery: 1 patient (short gap) underwent primary thoracoscopic anastomosis, 11 had gastrostomy (Stamm, n = 5; image-guided, n = 6) as initial procedure. At definitive repair (age: 128 ± 91 days; weight 5.5 ± 2.3 kg): ten had primary anastomosis and 1 had Collis gastroplasty. No patient had esophageal replacement surgery. Outcomes: three patients had gastrostomy dehiscence requiring re-operation. At post-operative esophagram, seven had anastomotic leak successfully treated conservatively. Seven patients developed strictures requiring balloon dilatations (median two dilatations, range 1–10), six received antireflux surgery. At 7-year follow-up (range 5–15 years), all patients had the gastrostomy closed and were on full oral feeds.

Conclusions

The management of pure EA continues to be challenging. The preservation of native esophagus is possible with significant morbidity. The long-term outcomes are favourable.

     

Outcomes following sclerotherapy for mucosal rectal prolapse with oily phenol injection: single-centre review

Aim of the study

To review the outcomes of injection sclerotherapy with oily phenol for mucosal rectal prolapse.

Methods

Retrospective case note review of all children who underwent sclerotherapy with oily phenol injection as primary surgical intervention for mucosal rectal prolapse, from January 2007 to December 2015.

Main results

A total of 31 patients were identified. Mean age at presentation was 4.8 years (range 5 months–12 years). 23 patients with mucosal rectal prolapse underwent injection sclerotherapy with oily phenol as primary procedure. Patients with full-thickness rectal prolapse (n = 6) and 2 with mucosal prolapse who had Thiersch stitch were excluded from the study. The cause for mucosal rectal prolapse was considered to be due to constipation (n = 15), idiopathic (n = 7), spina bifida (n = 1). Follow-up was for minimum 6 months (median = 4 years; range 6 months–17 years). Recurrence following injection sclerotherapy with oily phenol requiring further procedures was 30.4% (7/23).

Conclusions

Injection sclerotherapy with oily phenol is a safe, effective and minimally invasive primary treatment option for mucosal rectal prolapse not responding to conservative management. In case of recurrence, a cautious re-examination under anaesthesia should be undertaken to exclude a missed full-thickness rectal prolapse before reinjecting.

     

Image-guided placement of percutaneous de novo low-profile gastrojejunostomy tubes in the pediatric population: a study of feasibility and efficacy

Background

De novo low-profile gastrojejunostomy tubes in pediatric patients offer less external catheter bulk and decreased propensity for dislodgement as children become more mobile. While small cohort studies have evaluated de novo placement of coaxial, adjustable-length, percutaneous gastrojejunostomy (GJ) tubes in children, placement of de novo low-profile GJ tubes in pediatric patients has not been analyzed.

Objective

This study evaluates technical feasibility, safety and clinical efficacy of percutaneous, retrograde placement of de novo low-profile GJ tubes in infants and children.

Materials and methods

Following institutional review board approval, all de novo low-profile GJ tube placements in patients were retrospectively reviewed between May 2014 and May 2017. Technical parameters of fluoroscopy time, tube size, T-fasteners and complications were recorded. Clinical data, including age, indication, weight gain and complications, were analyzed.

Results

Thirty-four de novo low-profile GJ tubes were placed in 34 patients (median age: 9.4 months, range: 2 months-11.8 years; median pre-procedural weight: 7.5 kg, range: 2.9-31.6 kg). Twenty-one 14-Fr and 13 16-Fr GJ tubes were placed with technical success rate of 100%. Average weight gain 3 months’ post procedure was 1.1 kg (range: 0.3-4.8 kg) and average weight percentile for age increase was 9.6% (range: -48.9% to 53.5%). One major complication occurred following balloon inflation within the tract causing pain requiring urgent replacement of the GJ tube. Minor complications occurred in 11 patients (32%): accidental dislodgement (n=9), skin irritation (n=4), tube dysfunction (n=2), leakage (n=2) and tube migration into the esophagus (n=1).

Conclusion

Percutaneous, antegrade, image-guided placement of de novo low-profile GJ tubes is technically feasible, safe and clinically efficacious in appropriately selected pediatric patients.

     

Primary lung tumors in children: 24 years of experience at a referral center

Purpose

Primary lung tumors are rare during childhood and encompass a wide variety of histological types. Each has a different biology and a different therapeutic approach. The aim of this article is to review the experience of a pediatric referral center with this kind of tumors during the last 24 years.

Methods

A retrospective chart review was performed for patients with diagnosis of primary lung tumor between the years 1990–2014. The variables analyzed were age, sex, course of the disease, symptoms, localization, surgery, histology and outcome.

Results

Between 1990 and 2014, 38 patients with primary lung tumors were treated at our institution. Age at presentation was 6.6 ± 5.2 years (r 0.91–16.58) and the female:male relationship was 1.37. Inflammatory myofibroblastic lung tumor (n = 13), carcinoid tumor (n = 6) and pleuropulmonary blastoma (n = 6) were the most frequent histological types. Persistent radiographic abnormality was the most frequent presenting sign (34 %). Global mortality was 15.8 % varying according to histology.

Conclusion

Although the diagnosis of primary lung tumor is rare, the persistence of a radiographic abnormality in spite of adequate treatment for inflammatory processes forces us to evaluate further. The age of the patient is an important factor in the decision of the diagnostic work-up.

     

A comparison of the characteristics and precision of needle driving for right-handed pediatric surgeons between right and left driving using a model of infant laparoscopic diaphragmatic hernia repair

Purpose

We compared the characteristics and precision of right and left needle driving for right-handed pediatric surgeons using a laparoscopic diaphragmatic repair model.

Methods

Eighteen right-handed pediatric surgeons performed three needle driving maneuvers using both hands. We evaluated the required time and conducted an image analysis. The total path length, velocity, and acceleration of the needle driving were also evaluated.

Results

Obtained results show the findings for the required time (s, Rt 310.78 ± 148.93 vs. Lt 308.61 ± 122.53, p = 0.93), sum of needle driving balances (mm, Rt 5.23 ± 2.44 vs. Lt 5.05 ± 3.17, p = 0.83), the gap of the needle driving interval (Rt 1.2 ± 0.93 vs. Lt 2.17 ± 1.67, p = 0.04), total path length (mm, Rt 594.03 ± 205.29 vs. Lt 1641.07 ± 670.68, p < 0.01), and average velocity (mm/s, Rt 1.92 ± 0.54 vs. Lt 5.3 ± 1.39, p < 0.01).

Conclusion

For right-handed pediatric surgeons, left needle driving showed almost same quality of right needle driving as regarding the precision. But left needle driving also showed too fast but not economical movement unfortunately, implying rough and risky forceps manipulation. Non-dominant hand training is necessary to avoid organ injury.

     

Pigeon chest: comparative analysis of surgical techniques in minimal access repair of pectus carinatum (MARPC)

Background

After minimally invasive repair for pectus excavatum (MIRPE), similar procedures for pectus carinatum were developed. This study aimed to analyse the various published techniques of minimal access repair for pectus carinatum (MARPC) and compare the outcomes.

Data sources

Literature was reviewed on PubMed with the terms “pectus carinatum”, “minimal access repair”, “thoracoscopy” and “children”.

Results

Twelve MARPC techniques that included 13 articles and 140 patients with mean age 15.46 years met the inclusion criteria. Success rate of corrections was n = 125, about 89% in cumulative reports, with seven articles reporting 100%. The complication rate was 39.28%. Since the pectus bar is placed over the sternum and has a large contact area, skin irritation was the most frequent morbidity (n = 20, 14.28%). However, within the complication group (n = 55), wire breakage (n = 21, 38.18%) and bar displacement (n = 10, 18.18%) were the most frequent complications. Twenty-two (15.71%) patients required a second procedure. Recurrences have been reported in four of twelve techniques. There were no lethal outcomes.

Conclusions

MARPC techniques are not standardized, as MIRPE are, so comparative analysis is difficult as the only common denominator is minimal access. Surgical morbidity is high in MARPC and affects > 2/3rd patients with about 15% requiring surgery for complication management.