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Results for “APPENDICULAR ARTERY”

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At least 19 recordsLinked to original sources
PubMed2004

Appendicular arterial tumor embolization in two cats with pulmonary carcinoma.

A 13-year-old neutered male Persian cat and an 11-year-old neutered female Persian cat were examined because of an acute onset of lameness. In both cats, conscious proprioception and reflexes were diminished in the affected limb. In 1 cat, no blood flow was detected in the left brachial artery with a Doppler ultrasonic flow detector, whereas blood flow in the right brachial artery was easily documented. In the other cat, the right femoral pulse was not palpable. Neither cat had any echocardiographic evidence of cardiac disease. In both cats, treatment was primarily supportive. One cat died, and the other was euthanatized. At necropsy, lung lobe consolidation was seen. Microscopically, there was multifocal infiltration of the lung parenchyma with cuboidal to columnar neoplastic epithelial cells. Neoplastic epithelial cells of similar morphology were identified in nodular masses in sections of muscle, and intravascular tumor emboli were identified obliterating small and large arterioles. Immunohistochemical staining of pulmonary and muscular tissue for pan-cytokeratin antigen revealed intense cytoplasmic staining of neoplastic cells. Staining for factor VIII-related antigen confirmed that clusters of neoplastic cells represented intravascular emboli. Clinical signs in the cats were attributed to arterial occlusion by tumor emboli.

Animals↗
PubMed1991

Intra-abdominal bleeding in appendicitis.

A 34-year-old woman, gravida 6 with 10 weeks of gestation was admitted because of abdominal pain and fainting. On physical examination she had hypotension, was pale with abdominal tenderness and guarding. Culdocentesis yielded unclotted blood. Immediate laparotomy was performed, because a diagnosis of ectopic pregnancy was made. About 2,500 ml of fresh blood was found in the abdominal cavity. Appendicular artery tear caused active arterial bleeding. The torn appendicular artery was observed to be the consequence of perforated appendicitis, which, in turn, was caused by a faecalith. Appendectomy was performed and she made a good recovery.

Adult↗
PubMed1988

Blood vascular organization of the human appendix: a scanning electron microscopic study of corrosion casts.

Blood vascular beds of the human appendix were reproduced with a methacrylate casting medium and observed with a scanning electron microscope. The appendix received some small afferent arterial branches of the appendicular artery. These small arterial branches pierced the muscular layer and reached the submucosal plexus. Small arterioles arising from this plexus, climbed the mucosa and formed honeycomb-like capillary meshes at the luminal surface level. These capillaries were drained by the collecting veins, which descended the mucosa and joined the submucosal plexus. The large efferent veins arising from the submucosal plexus passed through the muscular layer and continued with the appendicular vein. In the mucosal and submucosal layers, several spherical basket-like casts of the germinal center (lymphoid follicle) were seen. In the parafollicular region (primary follicle), casts of postcapillary venules with prominent surface undulations were relatively frequently observed.

Adult↗
PubMedDate not supplied

Blood supply and position of the vermiform appendix in Zambians.

The arterial blood supply, position, and length of the appendix were studied 103 Zambian cadavers. In 39.8%, more than one appendicular artery was found. In position, 43.6% were pelvic, and 20.3% retro-cecal. The average length of the appendix was 12.0 cm in males, and 11.4 cm in females. The prevalence of the dual blood supply and pelvic position, may partly explain the recorded rarity of appendicitis among Africans.

Adolescent↗
PubMed1983

The position, length and arterial supply of vermiform appendix.

The arterial blood supply, position and length of appendix were studied in 100 Indian (Uttar Pradesh region) cadavers. In 39% more than one appendicular artery was demonstrated. The retrocaecal and retrocolic positions of the appendix were by far the commonest (58%). Incidence of postilial position was also fairly common (10%). The average length of the appendix was found to be 9.5 cm in the male and 8.7 cm in the female. The prevalence of the retrocaecal and retrocolic positions may partly explain the incidences of appendicitis.

Adolescent↗
PubMed1993

Laparoscopic appendicectomy: diagnosis and resection of acute and perforated appendices.

Laparoscopic appendicectomy for acute appendicitis has been promulgated in many European countries during the 1980s. The introduction of the microchip camera and visual assistance on a monitor has increased the appeal of laparoscopic appendiceal resection. It carries a unique appeal in that the extent of inflammation and the presence of other pathological conditions are readily identified. This approach does not prevent the surgeon proceeding to open surgery if appropriate, and will aid in defining the site of incision. Prospective analyses (McAnena et al, 1992; Attwood et al, 1992) have shown that this approach shortens hospital stay, decreases wound infection rates and provides excellent cosmetic results. It also hastens return to full activity. It requires experience and, as with cholecystectomy, the option of converting to an open procedure should not be considered a failure of the approach. Details of approaches to the inflamed appendix are described. Caution in the use of diathermy is needed (particularly at the base of the appendix), as it may cause necrosis of the caecum or dissolution of the ties at the appendix base. Control of the appendicular artery by clip ligation is preferable to diathermy. The training of surgical residents will be enhanced rather than diminished if, under close, experienced supervision, they are taught to perform appendicectomy laparoscopically, as the essentials of anatomic dissection of the appendix are perhaps better appreciated on a video screen than at open surgery through a small incision.

Adult↗
PubMed1992

Laparoscopic surgery in children and adolescents with suspected appendicitis: results of medical technology assessment.

Laparoscopy has been performed in 43 patients aged up to 18 years with suspected appendicitis; 20 were children 8-15 years and 23 adolescents 16-18 years of age. Diagnostic laparoscopy was successful in 36 (84%) patients; in 7 (16%) subsequent laparotomy was necessary to establish the diagnosis, in 4 (9%) because the appendix was not visualized. Laparoscopic appendectomy was done in 33 (77%) patients, additional laparoscopic adhesiolysis in four and inversion of a diverticulum in one. Changing to laparotomy during the laparoscopic operation was necessary in one patient because of a technical problem and in another because of bleeding of the appendicular artery. Laparoscopy was totally free of complications in 33 (77%) patients; another 9 (21%) had surgical or technical problems without negative outcome for the patient. In one (2%) patient a wound infection led to a negative outcome; there were no other laparoscopy-related events. The mean intensity of pain on the first day after laparoscopic appendectomy was 31 points (Visual Analogue Scale with 100 points) and decreased to nearly zero on the third day; 37% of patients needed opioids on the first and none on the third day. There was no statistical difference for pain intensity and consumption of analgesics after appendectomy via laparoscopy versus laparotomy. We conclude that diagnostic and therapeutic laparoscopy in children and adolescents with suspected appendicitis is a safe and effective procedure.

Adolescent↗
PubMed2001

Angiodysplasia of the appendix.

Angiodysplasia of the gastrointestinal tract is thought to be one of the most common causes of lower gastrointestinal bleeding in the elderly, and, in the majority of cases, lesions are located in the cecum or ascending colon. The authors report an extremely rare case of appendicular angiodysplasia. A 76-yr-old woman was hospitalized with massive recurrent red anal bleeding. Selective superior mesenteric arteriography revealed an extravasation of contrast material from the appendicular artery, and this finding proved to be bleeding from an angiodysplasia of the appendix. An appendectomy was performed, and anal bleeding did not recur postoperatively. A review of the literature revealed this to be an extremely rare case of angiodysplasia.

Aged↗
PubMedDate not supplied

[Unusual hemorrhagic complication after surgery for severe generalized appendicular peritonitis].

The 22 year old male patient, was admitted in hospital for severe generalized peritonitis subsequent to acute perforated appendicitis and toxico-septic shock. On examination and relying on the previous history of the patient onset of the perforation was start assessed to have occurred some days earlier. Severe generalized, putrid peritonitis was found on surgery of the peritoneal cavity. Appendectomy was successfully carried out with a simple ligature of the appendix stump, and the ligature of the mezooappendix was performed without identifying the appendicular artery. Early in the postoperative stage there occurred diffuse bleeding localized in the peritoneal cavity. The source of the bleeding could not by found at the first reoperation. Subsequently the septic syndrome evolved simultaneously with the bleeding in a milder form, however, leading to growth in size of retroperitoneal hematoma. On marking the diagnosis, relying on CT examination, a new, second surgery was performed which afforded evacuation and drainage of the retroperitoneal hematoma. The authors have remarked and have tried to clear up the circumstances which had been conductive to the occurrence of hemorrhage, a thing absolutely unusual in the evolution of diffuse peritonitis by perforated acute appendicitis.

Adult↗
PubMedDate not supplied

[Laparoscopic appendectomy. Surgical technique description and literature review].

INTRODUCTION: The laparoscopic appendectomy (LA) is considered a surgical process of controversy, although it offers better recovery and better aesthetic results, and allows visualization of the abdominal cavity. In this work, we presented a revision of the topic and the experience of our group in the Endoscopic Surgery Unit at the Dr. Manuel Gea González General Hospital and at the Hospital Médica Sur, both in Mexico City. PATIENTS AND METHODS: We conducted a retrospective study, randomized, which included patients with LA from January 1, 1993 to December 31, 2002. All were operated on by the same group of surgeons. No exclusion criterion existed for the procedure. The surgical technique used in studied patients is described. RESULTS: We operated on 218 patients; 69% were women of 10 to 78 years of age with a 27 years-of-age average. Surgical time varied from 20 to 90 min with an average of 35 min. Hospitalization lasted 1 to 5 days, with an average of 2 days. We found peritonitis in 23%. In 202 patients, diagnosis of appendicitis was confirmed; only in 16 patients was diagnosis different. Surgical technique was the same during the entire time. We used the Gea knot with polypropylene to tie off the appendix and appendicular artery. In cases of peritonitis, irrigation was not used, but only aspiration, cleaning with gauzes, and placement of drainages. Mortality was not reported. CONCLUSIONS: LA offers advantages over AA whenever it is carried out by an experienced laparoscopic surgeon. Peritonitis is not a contraindication for LA, and it is not necessary to irrigate with solution for cleaning the peritoneal cavity.

Adolescent↗
PubMed1986

[Results of 748 preventive appendectomies].

From 1975 to 1984 748 incidental appendectomies were done on the occasion of gynecological laparotomy. In 73 per cent of the appendices no pathological finding was to be found. In 27% there were chronic inflammatory changes. Postoperative complications could be observed only in 2 cases. Because of bleedings from the appendicular artery relaparotomies were necessary. No other complications. Therefore incidental appendectomy is justified if special preconditions are taken into consideration.

Adolescent↗
PubMed1976

[Plasticity of the circulatory bed of the vermiform appendix in the presence of circulatory disorders within it].

The methods of macro-microscopy and angio-roentgenography were used to study the change of blood vessels of the vermiform process in 80 rabbits. Six series of experiments were performed with the exclusion of the appendicular artery and vein and their direct branches in different combinations. The normal circulatory bed was studied in 10 rabbits. It has been established that the circulatory bed of the rabbit vermiform process is characterized by a very complicated structure and has numerous intervascular connections. The latter possess high plasticity sustaining the sufficiently developed collateral circulation and the recovery of the blood inflow disturbed in the process. The work describes specific features of the process circulatory bed changes under the conditions of the experiments. The data obtained should be taken into account when modeling acute appendicitis in the rabbit by disturbing its vascularization.

Animals↗