The Burden of Stroke in Neonates Undergoing Congenital Heart Surgery: A Large Multicenter Analysis.

BACKGROUND: Stroke affects surgical decision making and outcomes of neonatal cardiac surgery(CHS). We sought to assess the burden of stroke in this population from a large multi-center database. METHODS: We analyzed neonates undergoing CHS with cardiopulmonary bypass from the Pediatric Health Information System database(2004-2022). The cohort was divided into stroke-group which included pre/post-op ischemic, hemorrhagic-subtypes and grade III-IV intraventricular hemorrhages and compared in-hospital and follow-up outcomes to non-stroke group. RESULTS: Of 14,228 neonates, 800(5.6%) had a peri-operative stroke. Stroke-group was more likely to have hypoplastic left-heart syndrome (HLHS)(30.5% vs 20.7%), born pre-term(19.4% vs 11.7%), low-birthweight(17.8% vs 11.9%) and require ECMO(48.8% vs 13.8%)(all, p<0.001). Outcomes comparing stroke vs no-stroke were, mortality:33.1% vs 8.9%, non-home discharge:12.5% vs 6.9%, length of stay:41 vs 24 days, hospitalization-costs:$354,521 vs $180,489(all, p<0.05). Stroke increased odds of mortality by two-fold[OR 2.20(1.75-2.77), p<0.001] after adjusting for ECMO, prematurity among other significant factors. On follow-up, stroke-group had higher incidence of hydrocephalus(9.5% vs 1.3%), cerebral palsy (6.2% vs 1.3%), autism spectrum disorder(7.1% vs 3.5%) and had higher one- and five- year mortality among survivors of index admission(5.3% and 11.3% vs 3.3% and 5.9%, respectively) (all p<0.05). CONCLUSIONS: Neonatal CHS patients born prematurely, diagnosed with HLHS or those requiring ECMO are disproportionately affected by stroke. The occurrence of stroke is marked by significantly higher mortality. Future research should seek to identify factors leading to stroke, in order to increase rescue after stroke and for improvement of long-term outcomes.

Early prediction of pediatric acute kidney injury from the emergency department: A pilot study.

BACKGROUND: Identifying acute kidney injury (AKI) early can inform medical decisions key to mitigation of injury. An AKI risk stratification tool, the renal angina index (RAI), has proven better than creatinine changes alone at predicting AKI in critically ill children. OBJECTIVE: To derive and test performance of an "acute" RAI (aRAI) in the Emergency Department (ED) for prediction of inpatient AKI and to evaluate the added yield of urinary AKI biomarkers. METHODS: Study of pediatric ED patients with sepsis admitted and followed for 72 h. The primary outcome was inpatient AKI defined by a creatinine >1.5× baseline, 24-72 h after admission. Patients were denoted renal angina positive (RA+) for an aRAI score above a population derived cut-off. Test characteristics evaluated predictive performance of the aRAI compared to changes in creatinine and incorporation of 4 urinary biomarkers in the context of renal angina were assessed. RESULTS: 118 eligible subjects were enrolled. Mean age was 7.8 ± 6.4 years, 16% required intensive care admission. In the ED, 27% had a +RAI (22% had a >50% creatinine increase). The aRAI had an AUC of 0.92 (0.86-0.98) for prediction of inpatient AKI. For AKI prediction, RA+ demonstrated a sensitivity of 94% (69-99) and a negative predictive value of 99% (92-100) (versus sensitivity 59% (33-82) and NPV 93% (89-96) for creatinine ≥2× baseline). Biomarker analysis revealed a higher AUC for aRAI alone than any individual biomarker. CONCLUSIONS: This pilot study finds the aRAI to be a sensitive ED-based tool for ruling out the development of in-hospital AKI.

Improving Efficiency of Pediatric Hospital Medicine Team Daily Workflow.

BACKGROUND AND OBJECTIVES: Workflow inefficiencies by medical teams caring for hospitalized patients may affect patient care and team experience. At our institution, complexity and clinical volume of the pediatric hospital medicine (HM) service have increased over time; however, efficient workflow expectations were lacking. We aimed to increase the percentage of HM teams meeting 3 efficiency criteria (70% nurses present for rounds, rounds completed by 11:30 am, and HM attending notes completed by 5 pm) from 28% to 80% within 1 year. METHODS: Improvement efforts targeted 5 HM teams at a large academic hospital. Our multidisciplinary team, including HM attending physicians, pediatric residents, and nurses, focused on several key drivers: shared expectations, enhanced physician and nursing buy-in and communication, streamlined rounding process, and data transparency. Interventions included (1) daily rounding expectations with prerounds huddle, (2) visible reminders, (3) complex care team scheduled rounds, (4) real-time nurse notification of rounds via electronic platform, (5) workflow redesign, (6) attending feedback and data transparency, and (7) resource attending implementation. Attending physicians entered efficiency data each day through a Research Electronic Data Capture survey. Annotated control charts were used to assess the impact of interventions over time. RESULTS: Through sequential interventions, the percentage of HM teams meeting all 3 efficiency criteria increased from 28% to 61%. Nursing presence on rounds improved, and rounds end time compliance remained high, whereas attending note completion time remained variable. CONCLUSIONS: Inpatient workflow for pediatric providers was improved by setting clear expectations and enhancing team communication; competing demands while on service contributed to difficulty in improving timely attending note completion.

Acute Kidney Injury and Fluid Overload in Pediatric Cardiac Surgery.

PURPOSE OF REVIEW: Acute kidney injury (AKI) and fluid overload affect a large number of children undergoing cardiac surgery, and confers an increased risk for adverse complications and outcomes including death. Survivors of AKI suffer long-term sequelae. The purpose of this narrative review is to discuss the short and long-term impact of cardiac surgery associated AKI and fluid overload, currently available tools for diagnosis and risk stratification, existing management strategies, and future management considerations. RECENT FINDINGS: Improved risk stratification, diagnostic prediction tools and clinically available early markers of tubular injury have the ability to improve AKI-associated outcomes. One of the major challenges in diagnosing AKI is the diagnostic imprecision in serum creatinine, which is impacted by a variety of factors unrelated to renal disease. In addition, many of the pharmacologic interventions for either AKI prevention or treatment have failed to show any benefit, while peritoneal dialysis catheters, either for passive drainage or prophylactic dialysis may be able to mitigate the detrimental effects of fluid overload. SUMMARY: Until novel risk stratification and diagnostics tools are integrated into routine practice, supportive care will continue to be the mainstay of therapy for those affected by AKI and fluid overload after pediatric cardiac surgery. A viable series of preventative measures can be taken to mitigate the risk and severity of AKI and fluid overload following cardiac surgery, and improve care.

Maximizing the Reach of the Pedicled Gastrocnemius Muscle Flap: A Comparison of 2 Surgical Approaches.

BACKGROUND: The medial gastrocnemius muscle flap is commonly used for the reconstruction of defects around the knee and proximal leg. The flap can be raised using either a medial or a posterior midline incision, although no studies have been done comparing the 2 different surgical approaches. METHODS: We compared the reach of the medial gastrocnemius muscle flap using either of the 2 incisions in a series of 25 fresh cadavers. All muscle flaps were elevated without division of the muscle origin. Muscle reach was calculated using the distance from a fixed bony point with the leg fully extended and the muscle under no tension. Muscle width measurements were used to calculate surface area of coverage. RESULTS: Muscle flaps elevated through the posterior midline incision group reached 2.02 cm farther than flaps through the medial incision (P < 0.05). This resulted in 20.3 cm increase in surface area for the posterior midline incision group over the medial incision group (P < 0.05). The posterior midline incision allowed for better visualization of the vascular pedicle and dissection of fascial attachments around the pes anserinus. CONCLUSIONS: The posterior midline incision for the elevation of the medial gastrocnemius pedicled muscle flap allows for a safe, thorough mobilization of the muscle resulting in increased muscle reach and increased surface area when compared with the medial incision. Furthermore, the posterior midline incision provides better access to the gastrocnemius muscle origin and the lateral muscle head.

Surgical Treatment of Orbital Blowout Fractures: Complications and Postoperative Care Patterns.

Orbital fractures are a common result of facial trauma. Sequelae and indications for repair include enophthalmos and/or diplopia from extraocular muscle entrapment. Alloplastic implant placement with careful release of periorbital fat and extraocular muscles can effectively restore extraocular movements, orbital integrity, and anatomic volume. However, rare but devastating complications such as retrobulbar hematoma (RBH) can occur after repair, which pose a risk of permanent vision loss if not addressed emergently. For this reason, some surgeons take the precaution of admitting patients for 24-hour postoperative vision checks, while others do not. The incidence of postoperative RBH has not been previously reported and existing data are limited to case reports. Our aim was to examine national trends in postoperative management and to report the incidence of immediate postoperative complications at our institution following orbital repair. A retrospective assessment of orbital blowout fractures was undertaken to assess immediate postoperative complications including RBH. Only patients treated by a senior surgeon in the Department of Otolaryngology were included in the review. In addition, we surveyed AO North America (AONA) Craniomaxillofacial faculty to assess current trends in postoperative management. There were 80 patients treated surgically for orbital blowout fractures over a 9.5-year period. Nearly all patients were observed overnight (74%) or longer (25%) due to other trauma. Average length of stay was 17 hours for those observed overnight. There was one (1.3%) patient with RBH, who was treated and recovered without sequelae. Results of the survey indicated that a majority (64%) of responders observe postoperative patients overnight. Twenty-nine percent of responders indicated that they send patients home the same day of surgery. Performance of more than 20 orbital repairs annually significantly increased the likelihood that faculty would manage patients on an outpatient basis postoperatively (p = 0.04). For orbital blowout fractures, the number of immediate postoperative complications at our institution is low. In addition, North American trends in postoperative management of orbital blowout fractures may suggest that selected patients can be managed on an outpatient basis, which would have a positive effect on conservation of diminishing healthcare resources.

Factors influencing morbidity after surgical management of malignant thyroid disease.

OBJECTIVES: We performed a retrospective study of cases from 2005 to 2010 at an academic tertiary care center to analyze the factors that influence morbidity in surgical management of thyroid malignancy. METHODS: The rates of recurrent laryngeal nerve (RLN) injury and hypoparathyroidism (HPT) were analyzed in the entire cohort. The comparison groups were 1) primary surgery versus revision; 2) total thyroidectomy versus total thyroidectomy combined with neck node dissection; and 3) two groups defined by surgical technique according to the RLN approach: group 1, in which the RLN was identified inferiorly in the tracheoesophageal groove, and group 2, in which the RLN was identified near the cricothyroid joint point of entry. RESULTS: We reviewed 308 patients who underwent surgery for thyroid cancer. Thirty-six (11.7%) had temporary HPT, and 8 (2.6%) had permanent HPT. Of a total of 586 RLNs at risk, 16 (2.7%) had temporary damage and 2 (0.3%) had permanent damage. The incidences of temporary RLN injury significantly differed between the primary-surgery and revision-surgery groups (2.5% versus 15.6%; p = 0.001), and also between the groups with total thyroidectomy and thyroidectomy with neck dissection (1.2% versus 7.8%; p = 0.027). The incidences of temporary HPT were significantly different between the groups with primary surgery and revision surgery (6.6% versus 31.3%; p = 0.001), between the groups with total thyroidectomy and total thyroidectomy with neck dissection (4.7% versus 15.6%; p = 0.009), and between group 1 and group 2 (surgical technique in terms of RLN approach; 8.2% versus 17.9%; p = 0.011). Permanent HPT and permanent RLN injury both occurred rarely in this cohort, with no significant differences among comparison groups. CONCLUSIONS: Our study shows a higher incidence of temporary RLN injury and teniporary HPT in revision surgery cases and in total thyroidectomy with neck dissection. Temporary HPT was significantly more common when the RLN was identified near the cricothyroid joint.

Serial head circumference and neurodevelopmental screening after surgical correction for single- and multiple-suture craniosynostosis.

OBJECTIVE: To evaluate serial head circumference (HC) measurements and neurodevelopmental (ND) screening before and after surgical revision for craniosynostosis. DESIGN: Retrospective assessment. SETTING: Tertiary institutional. PATIENTS, PARTICIPANTS: All children treated with single-stage frontal-orbital advancement or total calvarial expansion for single-suture (SS) or multiple-suture (MS) craniosynostosis over a 7-year period. MAIN OUTCOME MEASURES: Changes in ND and HC were measured over postoperative visits after the primary surgery. More importantly, ND and HC changes were measured prerevision and postrevision. RESULTS: Of 183 patients undergoing primary surgery, complete records and adequate follow-up were available for 112 patients. The overall revision rate was 21% (n  =  23). Postrevision follow-up was adequate for 18 of the 23 revisions. After primary surgery, but prior to revision, children demonstrated a larger decline in HC (z-score, median  =  -1) along with higher ND findings (median  =  2) from one postoperative visit to the next than those who did not go on revision (HC z-score median  =  0, ND median  =  0). After revision, patients demonstrated a significant improvement in ND screening findings (median ΔND findings  =  -2) compared with prerevision ND (p < .001). Head circumference also significantly increased by a z-score of +1 postrevision (p  =  .001). CONCLUSIONS: Patients chosen for revision surgery display not only a larger decline in HC but also more ND findings prior to revision. Furthermore, surgical revision has a significant association with both improved ND screening and HC.

Outcomes of sphincter pharyngoplasty and palatal lengthening for velopharyngeal insufficiency: a 10-year experience.

OBJECTIVE: To report our experience in the care of patients treated for velopharyngeal insufficiency (VPI) with sphincter pharyngoplasty (SP) with or without the addition of palatal lengthening by Furlow palatoplasty (FP). DESIGN: Retrospective analysis. SETTING: Tertiary care cleft palate and craniofacial clinic. PATIENTS: Forty-six children with VPI, most of whom had palatal clefts, treated with SP (1998-2008). INTERVENTIONS: Treatment consisted of SP alone (n = 20) or SP plus FP (n = 26). MAIN OUTCOME MEASURE: Rate of revision surgery, indicating persistent VPI after surgical treatment. RESULTS: Of 46 patients, 6 (13%) required surgical revision. Regarding need for revision, no statistically significant differences were found concerning age, sex, cleft type, syndrome, or time between palate repair and SP. Indications for revision included persistent hypernasality (n = 2), inferior position (n = 2), flap dehiscence (n = 1), and obstructed sleep (n = 1). Postoperative improvement in velopharyngeal competence was documented in all revision cases. No patients required a second revision. Twenty-six of 46 patients (57%) underwent FP in addition to SP. The remaining 20 patients (43%) had SP alone. The revision rate was 4% (n = 1) for the SP plus FP group and 25% (n = 5) for the SP alone group (P = .04). CONCLUSIONS: Sphincter pharyngoplasty is an effective procedure for the management of VPI, with a success rate of 87% when using need for surgical revision as the primary outcome measure. This number improved to 100% after a single revision, with elimination of VPI in all revision cases. Concomitant FP and SP may improve outcomes compared with SP alone. Further prospective studies are needed to elucidate this relationship.

Biofilm density in the pediatric nasopharynx: recurrent acute otitis media versus obstructive sleep apnea.

OBJECTIVES: We compared the biofilm surface density of adenoids removed from children with recurrent acute otitis media (RAOM) to that of adenoids removed from children with a diagnosis of obstructive sleep apnea (OSA). METHODS: We performed a comparative microanatomic study of adenoid mucosa using scanning electron microscopy in patients with diagnoses of RAOM and OSA (27 female and 41 male; age range, 3 months to 15 years). RESULTS: The adenoids removed from patients with RAOM had dense, mature biofilms covering nearly their entire mucosal surfaces. More specifically, the adenoids removed from patients with RAOM had an average of 93.53% of their mucosal surface covered, versus an average of 1.01% coverage on the adenoids removed from patients with OSA. These differences were statistically significant (p < 0.0001). CONCLUSIONS: The adenoids removed from patients with RAOM had almost their entire mucosal surface covered with biofilms, versus scant coverage for patients with OSA. Recurrent acute otitis media is notoriously resistant to antibiotic treatment, and aspirates of middle ear fluid repeatedly yield negative cultures. It is these properties that have led biofilms to become increasingly implicated in the pathogenesis of RAOM. Thus, the resistance of biofilms to antimicrobials, together with their planktonic shedding of organisms, may be an important mechanism in the development of RAOM.