MyMedR

Fulltext Umbilical necrosis post unilateral pedicled transverse rectus abdominis myocutaneous flap

Neo EN, Harries R

Med J Malaysia, 2008 Mar;63(1):69-70.

We report a case of umbilical necrosis after a unilateral pedicled transverse rectus abdominis myocutaneous flap in a patient post mastectomy. This uncommon complication of breast reconstruction is highlighted.

Matched MeSH terms: Rectus Abdominis/surgery*

Fulltext Extended pedicle rectus abdominis myocutaneous flap for thigh reconstruction

Halim AS, Zulmi W

Med J Malaysia, 2005 Mar;60(1):109-11.

PMID: 16250294

A rectus abdominis myocutaneous flap can provide a large amount of tissue for defect coverage. Rarely a flabby and redundant abdominal tissue was used as a huge extended flap. We report a case of recurrence malignant fibrous histiocytoma of the thigh which was radically resected. The resultant massive defect was success reconstructed with an extended pedicle inferiorly based rectus abdominis myocutaneous flap.

Matched MeSH terms: Rectus Abdominis/transplantation*

Immediate simultaneous bilateral breast reconstruction with deep inferior epigastric (DIEP) free flap and transverse rectus abdominis musculocutaneous (TRAM) pedicled flap

Roslan EJ, Kelly EG, Zain MA, Basiron NH, Imran FH

Med J Malaysia, 2017 02;72(1):85-87.

PMID: 28255154 MyJurnal

Breast reconstructive surgery has evolved tremendously since its inception. Following tumour clearance surgery, physical restoration with breast reconstruction is an important aspect of physical and emotional rehabilitation. Various methods have been described to suit patients demand for the best aesthetic outcome. Surgeon's preference, experience and practicality of differing procedures must be considered. We describe a simultaneous bilateral breast reconstruction with free deep inferior epigastric (DIEP) flap and pedicled transverse rectus abdominis musculocutaneous (TRAM) flap immediately post mastectomies for bilateral breast cancers. The surgery described has resulted in a reasonable technical ease, acceptable flap and abdominal morbidity and good aesthetic outcome.

Matched MeSH terms: Rectus Abdominis

In vitro anticholinergic and antihistaminic activities of Acorus calamus Linn. leaves extracts

Vijayapandi P, Annabathina V, SivaNagaSrikanth B, Manjunath V, Boggavarapu P, Mohammed P AK, et al.

Afr J Tradit Complement Altern Med, 2012;10(1):95-101.

PMID: 24082330

The present investigation was aimed at determining the effects of hexane, acetone, methanol and aqueous extracts of Acorus calamus leaves (ACHE, ACAE, ACME and ACAQE) on cholinergic and histaminic system using isolated frog rectus abdominis muscle and guinea pig ileum. A dose dependent potentiation of Ach response (anticholinesterase like effect) was found with ACAE and ACME at 0.25, 0.5, 0.75 and 1 mg/ml, but at higher dose of ACAE, ACME, ACAQE and ACHE (5, 20 mg/ml) inhibit the Ach response (antinicotinic effect). These results revealed biphasic effect of Acorus calamus leaves extracts on acetylcholine induced contractile response in isolated frog rectus abdominis muscle preparation (i.e. potentiation effect at lower dose and inhibitory effect at higher dose). Studies on isolated guinea pig ileum demonstrated antihistaminic effect in a dose dependent manner (100-1000 µg/ml) with ACAE, ACME and ACAQE. In addition, the dose dependent inhibition of Ach response (antimuscarinic effect) was observed with ACAE and ACME. In conclusion, Acorus calamus leaves extracts exerts antinicotinic, anticholinesterase like activities in isolated frog rectus abdominis muscle and antihistaminic, antimuscarinic effect in guinea pig ileum. It has been suggested that these observed activities can be further studied for therapeutic potential of Acorus calamus leaves in the treatment of cognitive disorders and asthma.

Matched MeSH terms: Rectus Abdominis/drug effects*; Rectus Abdominis/metabolism; Rectus Abdominis/physiology

Abdominal muscle activation: An EMG study of the Sahrmann five-level core stability test

Chan EWM, Hamid MSA, Nadzalan AM, Hafiz E

Hong Kong physiotherapy journal : official publication of the Hong Kong Physiotherapy Association Limited = Wu li chih liao, 2020 Dec;40(2):89-97.

PMID: 33005073 DOI: 10.1142/S1013702520500080

Background: Sahrmann five-level core stability test protocol has been used to evaluate the ability of the core muscles to stabilize the spine. However, validation studies on the Sahrmann protocol are limited.

Objective: The purpose of this study was to compare the different levels of Sahrmann five-level core stability (levels 1-5) on the muscle activity of rectus abdominis (RA), external oblique (EO), and transverse abdominis/internal oblique (TrA/IO).

Methods: Twenty-two asymptomatic male participants aged 21.3
6
±
1
.59 years were recruited. Participants were instructed to perform maximum voluntary contraction (MVC) and five levels of Sahrmann five-level core stability test guided with a pressure biofeedback unit (PBU). The surface electromyography (EMG) data of each muscle during five levels of Sahrmann five-level core stability test were normalized as a percentage of MVC.

Results: Results showed significant differences in the normalized EMGs of RA [

χ

2

(4) = 64.80,
p
<
0
.001], EO [

χ

2

(4) = 58.11,
p
<
0
.001], and TrA/IO [

χ

2

(4) = 56.00,
p
<
0
.001] between the five levels of Sahrmann five-level core stability test. Post-hoc analysis revealed Sahrmann levels 5 and 3 have significantly higher abdominal EMG signals than levels 4, 2, and 1 (
p
<
0
.001).

Conclusion: In conclusion, the Sahrmann five-level core stability test differs according to the level of Sahrmann tests. Significantly higher abdominal muscle activities were observed during levels 3 and 5. Therefore, the classification exchange in levels 3 and 4 of the Sahrmann five-level core stability test should be reconsidered in the future.

Matched MeSH terms: Rectus Abdominis

Fulltext Simulation of passive exotendon assistive device for agricultural harvesting task

Chan YS, Teo YX, Gouwanda D, Nurzaman SG, Gopalai AA

Phys Eng Sci Med, 2023 Dec;46(4):1375-1386.

PMID: 37493930 DOI: 10.1007/s13246-023-01305-9

This study proposes and investigates the feasibility of the passive assistive device to assist agricultural harvesting task and reduce the Musculoskeletal Disorder (MSD) risk of harvesters using computational musculoskeletal modelling and simulations. Several passive assistive devices comprised of elastic exotendon, which acts in parallel with different back muscles (rectus abdominis, longissimus, and iliocostalis), were designed and modelled. These passive assistive devices were integrated individually into the musculoskeletal model to provide passive support for the harvesting task. The muscle activation, muscle force, and joint moment were computed with biomechanical simulations for unassisted and assisted motions. The simulation results demonstrated that passive assistive devices reduced muscle activation, muscle force, and joint moment, particularly when the devices were attached to the iliocostalis and rectus abdominis. It was also discovered that assisting the longissimus muscle can alleviate the workload by distributing a portion of it to the rectus abdominis. The findings in this study support the feasibility of adopting passive assistive devices to reduce the MSD risk of the harvesters during agricultural harvesting. These findings can provide valuable insights to the engineers and designers of physical assistive devices on which muscle(s) to assist during agricultural harvesting.

Matched MeSH terms: Rectus Abdominis

Fulltext Successful pregnancy "during" pedicled transverse rectus abdominis musculocutaneous flap for breast reconstruction with normal vaginal delivery

Chai SC, Umayaal S, Saad AZ

Indian J Plast Surg, 2015 5 21;48(1):81-4.

PMID: 25991893 DOI: 10.4103/0970-0358.155276

A transverse rectus abdominis myocutaneous (TRAM) flap is a popular choice for breast reconstruction. Pregnancies in women following a TRAM flap present concerns regarding both safety and the integrity of the abdominal wall. We report a case of a patient who was pregnant during immediate breast reconstruction with pedicled TRAM flap and had a successful spontaneous vaginal delivery. We also conducted a literature review using PubMed on pregnancy post TRAM flap, type of reconstruction, timing of pregnancy after TRAM flap, complication, and mode of delivery, which are summarised in this report. We concluded that patients may have safe pregnancies and normal deliveries following TRAM flap breast reconstruction regardless of the time frame of pregnancy after the procedure. Therefore, TRAM flaps can continue to be a reconstruction option, even in women of childbearing age.

Matched MeSH terms: Rectus Abdominis

Fulltext Huge Chest Wall Tumour Resection and Reconstruction using Titanium Mesh

Adli Azam MR, Raja Amin RM

Malays J Med Sci, 2015 Jan-Feb;22(1):70-3.

PMID: 25892952 MyJurnal

Malignant chest wall tumour is rare. The presentation is usually aggressive that requires extensive resection to prevent recurrence. However, the extensive resection is to the expense of causing defect on the chest wall and hence, respiratory mechanics. Two cases of chest wall tumour are discussed including the surgical approach of radical tumour resection which was combined with placement of titanium mesh and Tranverse Rectus Abdominis Myocutaneus (TRAM) flap to cover the defect and preserve respiratory mechanical functions. The morbidity of using titanium mesh demonstrated in the case series were infection and injury to surrounding tissue due to its rigidity and large size which required its removal. However the formation of 'pseudopleura' made the thoracic cage return back as closed cavity even after the removal of the titanium mesh and allow normal respiratory functions.

Matched MeSH terms: Rectus Abdominis

Fulltext Spontaneous rectus sheath haematoma in pregnancy

Ramzisham ARM, Sagap I, Ismail AM

Med J Malaysia, 2003 Mar;58(1):125-7.

PMID: 14556338

Bleeding into the rectus sheath is an uncommon but a well-recognised condition that mimics several other diagnoses of acute abdomen. A wide range of etiology has been proposed in association with this condition. It is often self-limiting, but can lead to unnecessary laparotomy if the diagnosis is not recognised.

Matched MeSH terms: Rectus Abdominis/radiography*

Fulltext Primary closure following drainage of a rectus sheath muscle abscess

Visvanathan R

Singapore Med J, 1994 Feb;35(1):108-9.

PMID: 8009268

The primary closure of a rectus sheath muscle abscess was performed on an 11-year-old child following evacuation of its contents under antimicrobial cover. Complete healing was achieved in eight days. This method avoids the delays in wound healing and morbidity associated with conventional drainage and shortens convalescence.

Matched MeSH terms: Rectus Abdominis/surgery*

Fulltext What lurks beneath: lacrimal gland adenocarcinoma dedifferentiation to sarcomatoid carcinoma

Farrah-Hani Imran, Muthukumaran, Guhan, Enda, Kelly, Jegan Thanabalan, Farizal Fadzil, Faridah Hanum

Journal of Surgical Academia, 2015;5(2):66-69.

MyJurnal

This was a case of a young lady presenting with 10 year history of a mass in the right eye. It was found to be an adenocarcinoma of the lacrimal gland from histopathological biopsy. She underwent wide excision, orbital exenteration and reconstruction with a free rectus abdominis flap. Unfortunately, she had a tumour recurrence which was not controlled by radiotherapy and a second excision. The behavior of the tumour was aggressive, resulting in widespread metastases. She passed away within a year of her presentation. Of note, the histopathology report from the second excision turned out to be sarcomatoid carcinoma. This is described in the literature as dedifferentiation, or high grade transformation (HGT). Occurrence of dedifferentiation in salivary gland tumours is well-established, but not as well-described in lacrimal gland tumours. In this case, there was a severely delayed presentation of a lacrimal gland adenocarcinoma in a young person, which underwent dedifferentiation into a sarcomatoid carcinoma. This phenomena is associated with aggressive tumour biology behavior and poor prognosis, despite surgery and radiotherapy.

Matched MeSH terms: Rectus Abdominis

Internal mammary perforators as recipient vessels for deep inferior epigastric perforator and muscle-sparing free transverse rectus abdominis musculocutaneous flap breast reconstruction in an Asian population

Halim AS, Alwi AA

Ann Plast Surg, 2014 Aug;73(2):170-3.

PMID: 23528630 DOI: 10.1097/SAP.0b013e318270704b

The use of internal mammary perforators (IMPs) as recipient vessels in autologous free flap breast reconstruction has many additional benefits compared with the internal mammary or thoracodorsal vessels. Our goals were to analyze the characteristics of these vessels and to evaluate the reliability of using them in an Asian population.

Matched MeSH terms: Rectus Abdominis/blood supply; Rectus Abdominis/transplantation*

Fulltext Dietary Lecithin Decreases Skeletal Muscle COL1A1 and COL3A1 Gene Expression in Finisher Gilts

Akit H, Collins C, Fahri F, Hung A, D'Souza D, Leury B, et al.

Animals (Basel), 2016;6(6).

PMID: 27338483 DOI: 10.3390/ani6060038

The purpose of this study was to investigate the effect of dietary lecithin on skeletal muscle gene expression of collagen precursors and enzymes involved in collagen synthesis and degradation. Finisher gilts with an average start weight of 55.9 ± 2.22 kg were fed diets containing either 0, 4, 20 or 80 g/kg soybean lecithin prior to harvest for six weeks and the rectus abdominis muscle gene expression profile was analyzed by quantitative real-time PCR. Lecithin treatment down-regulated Type I (α1) procollagen (COL1A1) and Type III (α1) procollagen (COL3A1) mRNA expression ( p < 0.05, respectively), indicating a decrease in the precursors for collagen synthesis. The α-subunit of prolyl 4-hydroxylase (P4H) mRNA expression also tended to be down-regulated ( p = 0.056), indicating a decrease in collagen synthesis. Decreased matrix metalloproteinase-1 (MMP-1) mRNA expression may reflect a positive regulatory response to the reduced collagen synthesis in muscle from the pigs fed lecithin ( p = 0.035). Lecithin had no effect on tissue inhibitor metalloproteinase-1 (TIMP-1), matrix metalloproteinase-13 (MMP-13) and lysyl oxidase mRNA expression. In conclusion, lecithin down-regulated COL1A1 and COL3A1 as well as tended to down-regulate α-subunit P4H expression. However, determination of muscle collagen content and solubility are required to support the gene functions.

Matched MeSH terms: Rectus Abdominis

Fulltext New modified undermined suture technique for rectus muscle re-approximation at cesarean delivery-Case report

Quek YS, Ling MJN, Hassan JB

Int J Surg Case Rep, 2020;73:235-238.

PMID: 32721883 DOI: 10.1016/j.ijscr.2020.07.028

INTRODUCTION: Diastasis recti abdominis (DRA) is characterized by the separation of the two rectus abdominis muscle along the linea alba. A newly modified undermined suture rectus muscle technique at cesarean delivery is created with improved post-operative outcome.

PRESENTATION OF CASE: A 30-year-old woman, who had a previous cesarean delivery, opted for another cesarean section (CS) during this pregnancy. She claimed that her tummy was lax after her first experience of CS even with regular exercise. A standard CS procedure was carried out along with the new modified undermined suture technique for rectus muscle re-approximation. Post-operatively, the pain score was 2/10 without any evidence of hematoma, seromas or infection and the patient ambulates well. The patient did not complain of any pain or complications upon follow up after 2 weeks and 2 months post-operation. She claims that her abdomen is firmer, flatter and more stable compared to her previous operation experience.

DISCUSSION: This newly modified method prevents any defect or weakness on the anterior abdominal wall even if the rectus muscles fail to oppose itself during the healing process. It also mimics the function of the linea alba and avoid interrupting the contraction or injuring the muscle in order to avoid pain. Adhesion of the anterior uterine wall and the rectus sheath can be prevented by closure of the rectus muscle and burying the suture material within the muscle.

CONCLUSION: The newly modified undermined suture rectus muscle technique at cesarean delivery has the potential to improved patient's post-operative satisfaction.

Matched MeSH terms: Rectus Abdominis

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