scholarly journals Tensile strength of the posterior and anterior layer of the rectus abdominis muscle sheath in cadavers

2007 ◽  
Vol 22 (4) ◽  
pp. 255-259 ◽  
Author(s):  
Carlos Roberto Amorim ◽  
Fábio Xerfan Nahas ◽  
Virgínio Cândido Tosta de Souza ◽  
Pedro Bins Ely ◽  
Romar Ângelo Barbato Silveira ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Statistical Difference ◽  
Rectus Sheath ◽  
Rectus Abdominis ◽  
Controlled Study ◽  
Rectus Abdominis Muscle ◽  
Anatomical Dissection ◽  
Significant Statistical Difference ◽  
Muscle Sheath

PURPOSE: The aim of the present study was to assess, in cadavers, the resistance to medial traction of the posterior and anterior layer of the rectus abdominis muscle sheath. METHODS: An anatomical, prospective, self-controlled study was carried out in 20 male cadavers. An evaluation of the tension of the posterior and anterior layers of the rectus abdominis muscle sheath was performed following anatomical dissection of these structures. The traction necessary to advance the tissue ten millimeters was assessed using an analogic dynamometer. RESULTS: There was no significant statistical difference between the necessary traction at various levels of the anterior and posterior layers of the rectus sheath. However, medial advancement of the anterior layer of the rectus sheath required more traction strength than did advancement of the posterior layer to the midline. CONCLUSION: There is no difference in the tensile strength in the various levels of the anterior and posterior layers of the rectus sheath; however, medial advancement of the the anterior layer required more traction strength.

scholarly journals Immunohistochemical analysis of collagen content and types in the rectus abdominis muscle of cadavers of different ages

2011 ◽  
Vol 26 (suppl 2) ◽  
pp. 3-7 ◽  
Author(s):  
Eliziane Nitz de Carvalho Calvi ◽  
Fábio Xerfan Nahas ◽  
Marcus Vinícius Jardini Barbosa ◽  
Silvia Saiuli Miki Ihara ◽  
José Augusto Calil ◽  
...  
Keyword(s):  
Rectus Sheath ◽  
Immunohistochemical Analysis ◽  
Rectus Abdominis ◽  
Collagen Content ◽  
Type Iii Collagen ◽  
Type I ◽  
Rectus Abdominis Muscle ◽  
Type Iii ◽  
Different Ages ◽  
Group A

PURPOSE: To assess the collagen content and types in the rectus abdominis muscle of cadavers of different ages. METHODS: Forty fresh adult male cadavers, at room temperature, were obtained from the Institute of Legal Medicine of Franca and dissected within 24 hours of death. The cadavers were divided into two groups: Group A (n=20), 18 to 30 years of age, and Group B (n=20), 31 to 60 years of age. Bilateral incisions were made in the middle portion of anterior rectus sheath 3 cm superiorly and 2 cm inferiorly to the umbilicus and four fragments of the rectus abdominis muscle were dissected. The samples were fixed in 10% buffered formalin and sent for immunohistochemical analysis to determine collagen content and types. RESULTS: Immunohistochemical results revealed higher amounts of type I and type III collagen in Group A. However, no difference in the amount of type IV collagen was found between the groups. CONCLUSION: The amount of type I and type III collagen was higher in group A.

Splenomesenteric Portal Venous Confluence Reconstruction Using Posterior Rectus Abdominis Muscle Sheath as Autologous Graft in Pancreatic Surgery

2020 ◽  
Vol 98 (1) ◽  
pp. 52-54
Author(s):  
Maria Galofré Recasens ◽  
Sara Sentí Farrarons ◽  
Maria Isabel García Domingo ◽  
Francesc Espin Alvarez ◽  
Esteban Cugat Andorrà
Keyword(s):  
Pancreatic Surgery ◽  
Rectus Abdominis ◽  
Rectus Abdominis Muscle ◽  
Autologous Graft ◽  
Muscle Sheath

scholarly journals Ultrasonography for measuring rectus abdominis muscles diastasis

2007 ◽  
Vol 22 (3) ◽  
pp. 182-186 ◽  
Author(s):  
Denise de Almeida Mendes ◽  
Fábio Xerfan Nahas ◽  
Daniela Francescato Veiga ◽  
Fernando Vilela Mendes ◽  
Ricardo Góes Figueiras ◽  
...  
Keyword(s):  
Rectus Sheath ◽  
Accurate Method ◽  
Rectus Abdominis ◽  
Preoperative Imaging ◽  
Deep Inspiration ◽  
Rectus Abdominis Muscle ◽  
Imaging Evaluation ◽  
Anterior Rectus Sheath ◽  
Rectus Diastasis ◽  
Significant Difference

PURPOSE: Preoperative imaging evaluation may be useful for determining the position of recti abdominis muscles before their correction. The purpose of this study is to evaluate the accuracy of ultrasonography to measure the width of rectus abdominis muscle diastasis. METHODS: Rectus diastasis was measured by ultrasonography preoperatively in 20 females. Rectus diastasis was measured in seven levels along the anterior rectus sheath by ultrasound after sustained deep inspiration and after expiration. Rectus diastasis, at the same levels, was also measured after its exposition during abdominoplasty by two independent observers, using a surgical compass. These values were compared using Wilcoxon's statistical text, for non independent values. RESULTS: There was no significant difference between the values obtained by ultrasound and those measured during surgery in the supra-umbilical levels and at the level of the umbilicus. However, below the umbilicus these values differed significantly, showing smaller values in the imaging evaluation. CONCLUSION: Ultrasonography is an accurate method to measure rectus diastasis above the umbilicus and at the umbilical level.

scholarly journals Application of Botulinum Neurotoxin Injections in TRAM Flap for Breast Reconstruction: Intramuscular Neural Arborization of the Rectus Abdominis Muscle

Toxins ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 269
Author(s):  
Kyu-Ho Yi ◽  
Hyung-Jin Lee ◽  
Ji-Hyun Lee ◽  
Kyle K. Seo ◽  
Hee-Jin Kim
Keyword(s):  
Breast Reconstruction ◽  
Botulinum Neurotoxin ◽  
Rectus Abdominis ◽  
Tram Flap ◽  
Rectus Abdominis Muscle ◽  
Cross Sectional ◽  
Transverse Rectus Abdominis Myocutaneous ◽  
Intramuscular Nerves ◽  
The Ideal

Breast reconstruction after mastectomy is commonly performed using transverse rectus abdominis myocutaneous (TRAM) flap. Previous studies have demonstrated that botulinum neurotoxin injections in TRAM flap surgeries lower the risk of necrosis and allow further expansion of arterial cross-sectional diameters. The study was designed to determine the ideal injection points for botulinum neurotoxin injection by exploring the arborization patterns of the intramuscular nerves of the rectus abdominis muscle. A modified Sihler’s method was performed on 16 rectus abdominis muscle specimens. Arborization of the intramuscular nerves was determined based on the most prominent point of the xyphoid process to the pubic crest. All 16 rectus abdominis muscle specimens were divided into four muscle bellies by the tendinous portion. The arborized portions of the muscles were located on the 5–15%, 25–35%, 45–55%, and 70–80% sections of the 1st, 2nd, 3rd, and 4th muscle bellies, respectively. The tendinous portion was located at the 15–20%, 35–40%, 55–60%, and 90–100% sections. These results suggest that botulinum neurotoxin injections into the rectus abdominis muscles should be performed in specific sections.

scholarly journals Postoperative analgesia effects of sulfentanyl plus dexmedetomidine in patients received VATS

Pteridines ◽  
2020 ◽  
Vol 31 (1) ◽  
pp. 55-60
Author(s):  
Haoyu Jiang ◽  
Ying Zheng ◽  
Chang Liu ◽  
Ying Bao
Keyword(s):  
Statistical Difference ◽  
Control Group ◽  
Control Groups ◽  
Significant Statistical Difference ◽  
Post Surgery ◽  
Intravenous Analgesia ◽  
The Mean ◽  
Nsclc Patients ◽  
And Control ◽  
Time Point

AbstractBackground To evaluate sulfentanyl combined with dexmedetomidine hydrochloride on postoperative analgesia in patients who received video-assisted thoracic surgery (VATS) and its effects on serum norepinephrine (NE), dopamine (DA), 5-hydroxytryptamine (5-HT), and prostaglandin (PGE2).Material and Methods Ninety-nine non-small cell lung cancer (NSCLC) patients who received VATS were included in the study. All the patients received intravenous inhalation compound anesthesia. Of the 99 cases, 49 subjects (control group) received sulfentanyl for patient controlled intravenous analgesia (PICA) and other 50 cases (experiment group) received sulfentanyl combined with dexmedetomidine hydrochloride for PICA after operation of VATS. The analgesic effects of the two groups were evaluated according to Visual Analogue Scales (VAS) and the Bruggrmann Comfort Scale (BCS). The serum pain mediator of NE, DA, 5-HT, and PGE2 were examined and compared between the two groups in the first 24 h post-surgery.Results The VAS scores for the experiment group were significant lower than that of control group on the time points of 8, 16, and 24 h post-surgery (pall<0.05), and the BCS scores of the experiment group in the time points of 8, 16, and 24 h were significantly higher than that of controls (p<0.05). However, the VAS and BCS scores were not statistical differently in the time point of 1, 2, and 4 h post-surgery (pall>0.05). The mean sulfentanyl dosage was 63.01 ± 5.14 μg and 67.12 ± 6.91 μg for the experiment and control groups respectively with significant statistical difference (p<0.05). The mean analgesic pump pressing times were 4.30 ± 1.31 and 5.31 ± 1.46 for experiment and control groups respectively with significant statistical difference (p<0.05). The serum NE, DA, 5-HT, and PGE2 levels were significantly lower in the experimental group compared to that of control group in the time point of 12 h post-surgery (pall<0.05). The side effects of nausea, vomiting, delirium, rash, and hypotension atrial fibrillation were not statistically different between the two groups (pall>0.05).Conclusion Patient controlled intravenous analgesia of sulfentanyl combined with dexmedetomidine hydrochloride was effective in reducing the VAS score and serum pain mediators in NSCLC patients who received VAST.

The Effectiveness of Antibiotic-Coated Ventriculoperitoneal Shunts for Prevention of Shunt Infections in Patients with Myelomeningocele

2021 ◽  
pp. 1-4
Author(s):  
Bilal Ertuğrul ◽  
Metin Kaplan ◽  
Ömer Batu Hergünsel ◽  
Bekir Akgün ◽  
Sait Öztürk ◽  
...  
Keyword(s):  
Protective Effect ◽  
Statistical Difference ◽  
Shunt Infection ◽  
Infection Rates ◽  
Ventriculoperitoneal Shunts ◽  
Significant Statistical Difference ◽  
Shunt Infections

<b><i>Purpose:</i></b> Hydrocephalus is a common comorbidity among the newborns, with myelomeningocele (MMC) and ventriculoperitoneal (VP) shunts being frequently used for the treatment of such patients. In this study, we aimed to compare the effectiveness of antibiotic-free and antibiotic-coated shunts to reduce the rate of shunt infection in patients with hydrocephalus and accompanying MMC. <b><i>Methods:</i></b> 116 patients with hydrocephalus and MMC who were treated with VP shunts were included in the study. Shunt infection rates among antibiotic-free and antibiotic-coated shunts were compared. <b><i>Results:</i></b> Of the 116 patients included in the study, 39 had antibiotic-coated shunts and 77 had antibiotic-free shunts. Shunt infection developed in 4 of the 39 cases treated with antibiotic-coated shunts and in 5 of the 77 cases treated with shunts without antibiotics. No significant statistical difference was found between antibiotic-coated and antibiotic-free VP shunts in terms of shunt infection (<i>p</i> = 0.450, <i>p</i> &#x3e; 0.05). <b><i>Conclusion:</i></b> In patients with MMC, using VP shunts containing antibiotics was found not to have a protective effect in preventing shunt infection. Whether the sac is intact or ruptured does not affect this result.

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