Craniofacial Growth after latrogenic Cleft Palate Repair in a Fetal Ovine Model

1997 ◽  
Vol 34 (1) ◽  
pp. 69-72 ◽  
Author(s):  
John W. Canady ◽  
Sue Ann Thompson ◽  
Alex Colburn

Controversy exists over the impact of scar formation on craniofacial growth after cleft palate repair. The fetal ovine model presents an opportunity to study a group of animals with little or no scar using cephalometric studies of craniofacial growth after iatrogenic cleft palate repair. Grossly evident scar is formed in the palates of lambs repaired at 118 days or later in gestation, while those animals operated at 70 and 77 days' gestation exhibited no scar grossly and minimal scar histologically in the submucosa with normal nasal and oral mucosal surfaces. For this study, 15 lambs were studied: four were unoperated, three were operated at 70 days, one at 77 days, and seven had clefts produced and repaired at 118 to 133 days' gestation. The animals were euthanized at 1 month of age and the heads removed and frozen until analyzed. Computerized tomography of the heads was used to create voxel (volume pixel) data sets, and volume rendering and measurement software (Voxblast) was used to create a three-dimensional reconstruction of the skull. Palate measurements were obtained by selecting points on the upper deciduous premolars. A plane was set through the palate and upper deciduous premolars using standard points on the skull to maintain consistent visualization and point selection. The measurements were normalized to skull size measured by the distance between points on the right and left zygomatic bones. Using one-way analysis of variance, followed by a protected t test, no significant differences were found between the means of any measurement In the three treatment groups. Fetal palate repair, with or without scarring, resulted in normal craniofacial growth in the 1-month-old lamb.

2018 ◽  
Vol 29 (3) ◽  
pp. 717-719 ◽  
Author(s):  
Mosaad Abdel-Aziz ◽  
Ayman Hussien ◽  
Ahmed Kamel ◽  
Khaled Azooz ◽  
Mohamed Fawaz

1994 ◽  
Vol 31 (1) ◽  
pp. 37-44 ◽  
Author(s):  
John W. Canady ◽  
Steve K. Landas ◽  
Hughlett Morris ◽  
Sue Ann Thompson

Cleft lip end palate defects assume many forms from mild to severe, but all may be associated with abnormal craniofacial development. Even the most expert and sophisticated methods of surgical repair are followed by scar contraction and fibrosis, which result in skeletal defects, dental abnormalities, cosmetic disfigurement, and speech Impairment. Recent clinical and experimental observations that fetal cutaneous wounds heal without scarring are of great potential interest In the management of cleft lip and palate. The objective of this study was to investigate the effect of prenatal repair of iatrogenically produced cleft palate on scar formation in the fetal lamb model. Ten ewes were operated on ranging in gestation from 70 to 133 days. Fifteen lambs were studied (nine cleft palates produced and repaired In utero; one cleft produced in utero and not repaired, four normal, unoperated palates; and one cleft palate produced and repaired 1 week postnatally). The lambs were delivered normally at 145 to 147 days gestation and maintained with the ewe until 1 month of age. The lambs were euthanized, and the surgical area of the palates studied grossly and histologically. Animals operated at 112 days or later in gestation exhibited scars both clinically and histologically. The animals that had cleft palate produced and repaired at 70 days gestation did not have a visible palatal scar at 1 month of age. Histologically, there was evidence of minimal scarring without disruption of normal architecture. Studies are underway to determine the impact of reduced scarring on craniofacial growth after palatal repair during mid gestation in the ovine model.


2017 ◽  
Vol 28 (4) ◽  
pp. 909-914
Author(s):  
Rachel Skladman ◽  
Lynn Marty Grames ◽  
Gary Skolnick ◽  
Dennis C. Nguyen ◽  
Sybill D. Naidoo ◽  
...  

2021 ◽  
pp. 105566562110174
Author(s):  
Thomas R. Cawthorn ◽  
Anna R. Todd ◽  
Nina Hardcastle ◽  
Adam O. Spencer ◽  
A. Robertson Harrop ◽  
...  

Objective: To evaluate the development process and clinical impact of implementing a standardized perioperative clinical care pathway for cleft palate repair. Design: Medical records of patients undergoing primary cleft palate repair prior to pathway implementation were retrospectively reviewed as a historical control group (N = 40). The historical cohort was compared to a prospectively collected group of patients who were treated according to the pathway (N = 40). Patients: Healthy, nonsyndromic infants undergoing primary cleft palate repair at a tertiary care pediatric hospital. Interventions: A novel, standardized pathway was created through an iterative process, combining literature review with expert opinion and discussions with institutional stakeholders. The pathway integrated multimodal analgesia throughout the perioperative course and included intraoperative bilateral maxillary nerve blocks. Perioperative protocols for preoperative fasting, case timing, antiemetics, intravenous fluid management, and postoperative diet advancement were standardized. Main Outcome Measures: Primary outcomes include: (1) length of hospital stay, (2) cumulative opioid consumption, (3) oral intake postoperatively. Results: Patients treated according to the pathway had shorter mean length of stay (31 vs 57 hours, P < .001), decreased cumulative morphine consumption (77 vs 727 μg/kg, P < .001), shorter time to initiate oral intake (9.3 vs 22 hours, P = .01), and greater volume of oral intake in first 24 hours postoperatively (379 vs 171 mL, P < .001). There were no differences in total anesthesia time, total surgical time, or complication rates between the control and treatment groups. Conclusions: Implementation of a standardized perioperative clinical care pathway for primary cleft palate repair is safe, feasible, and associated with reduced length of stay, reduced opioid consumption, and improved oral intake postoperatively.


2017 ◽  
Vol 28 (5) ◽  
pp. 1164-1166 ◽  
Author(s):  
Robin Wu ◽  
Alexander Wilson ◽  
Roberto Travieso ◽  
Derek M. Steinbacher

2021 ◽  
Vol 58 (5) ◽  
pp. 603-611
Author(s):  
Giap H. Vu ◽  
Christopher L. Kalmar ◽  
Carrie E. Zimmerman ◽  
Laura S. Humphries ◽  
Jordan W. Swanson ◽  
...  

Objective: This study assesses the association between risk of secondary surgery for oronasal fistula following primary cleft palate repair and 2 hospital characteristics—cost-to-charge ratio (RCC) and case volume of cleft palate repair. Design: Retrospective cohort study. Setting: This study utilized the Pediatric Health Information System (PHIS) database, which consists of clinical and resource-utilization data from >49 hospitals in the United States. Patients and Participants: Patients undergoing primary cleft palate repair from 2004 to 2009 were abstracted from the PHIS database and followed up for oronasal fistula repair between 2004 and 2015. Main Outcome Measure(s): The primary outcome measure was whether patients underwent oronasal fistula repair after primary cleft palate repair. Results: Among 5745 patients from 45 institutions whom met inclusion criteria, 166 (3%) underwent oronasal fistula repair within 6 to 11 years of primary cleft palate repair. Primary palatoplasty at high-RCC facilities was associated with a higher rate of subsequent oronasal fistula repair (odds ratio [OR] = 1.84 [1.32-2.56], adjusted odds ratio [AOR] = 1.81 [1.28-2.59]; P ≤ .001). Likelihood of surgery for oronasal fistula was independent of hospital case volume (OR = 0.83 [0.61-1.13], P = .233; AOR = 0.86 [0.62-1.20], P = .386). Patients with complete unilateral or bilateral cleft palate were more likely to receive oronasal fistula closure compared to those with unilateral-incomplete cleft palate (AOR = 2.09 [1.27-3.56], P = .005; AOR = 3.14 [1.80-5.58], P < .001). Conclusions: Subsequent need for oronasal fistula repair, while independent of hospital case volume for cleft palate repair, increased with increasing hospital RCC. Our study also corroborates complete cleft palate and cleft lip as risk factors for oronasal fistula.


Sign in / Sign up

Export Citation Format

Share Document