38 research outputs found
Lattice approximation in the stochastic quantization of ([phi]4̳)2̳fields
No full textCaption title. "August 1988." On the title page, the bracketed word in the title appears as the Greek mathematical symbol representing [phi], the numeral four preceded by a double underscore appears as superscript, and the numeral two preceded by a double underscore appears as subscript.Includes bibliographical references.The research of the second author was supported in part by the U.S. Army Research Office, contract DAAL03-86-K-0171 The research of the second author was supported in part by the Air Force Office of Scientific Research under contract AFOSR-85-0227by Vivek S. Borkar, Sanjoy K. Mitter
Laparoscopic Palomo varicocelectomy
No full textSir,
We have been called into question on the proper use
of term laparoscopic Palomo varicocelectomy by Letter
to the Editor: Nitinkumar Borkar, Nitin K. Kashyap,
Debajyoti Mohanty: Is it a Palomo’s operation? Afr
J Paed Surg. October-December 2014/Vol 11/Issue 4
371-372 who refer to: Marte A, Pintozzi L, Cavaiuolo
S, Parmeggiani P. Single-incision laparoscopic surgery
and conventional laparoscopic treatment of varicocele
in adolescents: Comparison between two techniques.
Afr J Paediatr Surg 2014;11:201-5.
It’s unquestionable that the original report of
Dr. Alejandro Palomo of J Urol 1949[1] (in prelaparoscopic
era) refers to an open retroperitoneal
approach with an en bloc section of testicular vascular
bundle, and according to the Author, this can be
implemented without compromising the testicular
vitality. From the original drawings: “Veins and artery
have been freed and are removed after clamps have
been applied. Proximal and distal stumps of the vessels
are ligated by transfixations sutures”.[1
Evaluation of tunica vaginalis free graft as a better alternative to tunica vaginalis pedicled flap for providing waterproof cover in Stage II hypospadias repair
No full textBackground: Tunica vaginalis (TV) flap has been used by many surgeons as a waterproof layer to cover neourethra. We present our experience in using free TV graft as an alternative to TV flap for providing waterproof cover in second-stage hypospadias repair. Materials and Methods: A retrospective review of ten patients with severe hypospadias who underwent Stage II hypospadias repair over a period of 15 months was carried out. Free TV graft was used to cover neourethra in all the patients. Results: The median age of patients was 3.5 years. Six patients had proximal hypospadias with severe chordee and four patients had peno-scrotal hypospadias. Eight patients had undergone Byars procedure and two patients had undergone Bracka's procedure during the first stage repair in the same institute. The mean operative time for Stage II repair using free TV graft was 150 min (standard deviation ± 15 min). All patients passed urine in good stream following stent/feeding tube removal. The average duration of hospital stay was 11 days. None of our patients developed urethrocutaneous fistula. Only one patient had superficial surgical site infection. All patients are well on follow-up after 6 months. Conclusion: Free TV graft could be used in place of TV flap as an intermediate waterproof cover to reduce the incidence of urethrocutaneous fistula in staged II hypospadias repair; however, studies involving a larger number of patients would be required to draw conclusions
A rare case of congenital ranula
No full textSimple ranula is a cystic swelling confined to the floor of mouth while plunging ranula presents with extension to the neck. Congenital ranula presenting with symptoms of feeding difficulties is a very rare occurrence. There is paucity of literature regarding the management of large congenital ranula. Varied treatment options are described for the management of ranula with variable recurrence rate. In paediatric and adult patients, ranula is considered as a type of extravasation cyst and removal of sublingual gland is advocated to remove the sources of extravasation. Congenital ranula is usually a variant of retention cyst and should be treated with marsupialisation or simple excision of cyst while cyst excision with sublingual sialadenectomy should be reserved for recurrent cases
Techniques of staged laparoscopic orchidopexy for high intra-abdominal testes in children: A systematic review and meta-analysis
No full textBackground: Laparoscopic exploration is currently considered the gold standard for managing nonpalpable intraabdominal testes. The problem of short vascular pedicle is addressed in Fowler-Stephen (FS) technique by the division of testicular vessels and in Shehata technique (ST) by traction on testicular vessels. There is a lack of the consensus among pediatric surgeons on the choice of one technique over other. This analysis compares the reported outcomes of staged laparoscopic orchidopexy by ST with the time tested FS technique in managing high intraabdominal undescended testis.
Materials and Methods: The present systematic review and meta-analysis was conducted as per the preferred reporting items for the systematic review and meta-analyses guidelines. Only randomized controlled trials and comparative studies were included. The primary outcomes compared were the incidence of testicular atrophy, testicular retraction/ascent rate, and operative time of Stage I and Stage II orchidopexy.
Results: The present analysis was based on three randomized studies with a total of 119 undescended testes in 117 patients satisfying the inclusion criteria. The operative time was less in Stage I FS technique; however, there was no statistically significant difference in operative time of both procedures during the Stage II laparoscopic orchidopexy. Pooled analysis of postintervention testicular atrophy, testicular retraction rate, and duration of postoperative hospitalization showed no difference between both procedures.
Conclusion: Both FS and STs are comparable in terms of postintervention testicular atrophy, testicular retraction/ascent; however, the mean operative time is significantly less with FS technique in Stage I laparoscopic orchidopexy
Generative Artificial Intelligence Accuracy in Interpreting Forest Plots in Pediatric Surgery Meta-analyses: A Perspective From Pediatric Surgery Meta-analysis Study Group (PESMA)
No full textSafety and Efficacy of the Use of Supraglottic Airway Devices in Children and Adolescents Undergoing Adenotonsillectomy—A Systematic Review and Meta-Analysis
No full text(1) Background: Supraglottic airway devices (SAD) have been used in children and adolescents undergoing adenotonsillectomies under general anesthesia. This systematic review and meta-analysis investigate the safety and efficacy of using SADs when compared to an endotracheal tube (ETT). (2) Methods: After registering with PROSPERO, databases like PubMed, Scopus, OviD, CINAHL, and Cochrane Library were searched using relevant keywords from the year 2000. We used RoB-2 for risk-of-bias assessment, GRADE for assessing the quality of evidence, RevMan 5.2 for qualitative meta-analysis, and trial sequential analysis (TSA) to corroborate the significant findings of meta-analysis. (3) Results: Out of 200 studies, 5 randomized-controlled trials fulfilled inclusion criteria. The quality of evidence was moderate for laryngospasm, low for airway device failure, and very low for recovery time. The incidence of laryngospasm was comparable between SADs and ETT (RR: 0.80, 95% CI-0.36, 1.80, p = 0.59). The incidence of airway device failure was significantly higher with SADs than ETT (RR: 11.29, 95% CI: 2.73, 46.66, p = 0.0008). The postoperative recovery time was significantly less with SADs than with ETT use (MD: −4.33, 95% CI: −5.28, −3.39, p < 0.0001), which was confirmed by the TSA. (4) Conclusions: The results of this review suggests that use of SADs can provide a lesser postoperative recovery time and comparable incidence of laryngospasm, with a higher incidence of failure of SAD when compared to ETT. Use of SAD for pediatric and adolescent adenotonsillectomies should be individualized based on patient characteristics, and on the expertise of the anesthesiologist and the surgeons involved
