scholarly journals Anatomy of Inferior Mesenteric Artery in Fetuses

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Ayesha Nuzhat

Aim. To analyze Inferior Mesenteric Artery in fetuses through its site of origin, length, diameter, and variation of its branches.Method. 100 fetuses were collected from various hospitals in Warangal at Kakatiya Medical College in Andhra Pradesh, India, and were divided into two groups, group I (second-trimester fetuses) and group II (third-trimester fetuses), followed by dissection.Result.(1) Site of Origin. In group I fetuses, origin of Inferior Mesenteric Artery was at third lumbar vertebra in 33 out of 34 fetuses (97.2%). In one fetus it was at first lumbar vertebra, 2.8%. In all group II fetuses, origin of Inferior Mesenteric Artery was at third lumbar vertebra.(2) Length. In group I fetuses it ranged between 18 and 30 mm, average being 24 mm except in one fetus where it was 48 mm. In group II fetuses the length ranged from 30 to 34 mm, average being 32 mm.(3) Diameter. In group I fetuses it ranged from 0.5 to 1 mm, and in group II fetuses it ranged from 1 to 2 mm, average being 1.5 mm.(4) Branches. Out of 34 fetuses of group I, 4 fetuses showed variation. In one fetus left colic artery was arising from abdominal aorta, 2.9%. In 3 fetuses, Inferior Mesenteric Artery was giving a branch to left kidney, 8.8%. Out of 66 fetuses in group II, 64 had normal branching. In one fetus left renal artery was arising from Inferior Mesenteric Artery, 1.5%, and in another fetus one accessory renal artery was arising from Inferior Mesenteric Artery and entering the lower pole of left kidney.Conclusion. Formation, course, and branching pattern of an artery depend on development and origin of organs to attain the actual adult position.

The Clinician ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 43-50
Author(s):  
D. Yu. Andriyashkina ◽  
N. A. Demidova ◽  
N. А. Shostak ◽  
D. A. Somov ◽  
М. A. Laperishvili

Objective:to analyze and present a clinical case of late diagnosis of Takayasu’s arteritis in a young female patient with long-term arterial hypertension.Materials and methods.The female patient G., born in 1989, had noted elevated arterial pressure (AP) of 150/90 mm Hg since she was 14. At 21 the following diagnosis was stated: Fibro-muscular dysplasia, stenosis of the left renal artery. Stenosis of the celiac trunk. Aneurisms of the branches of the superior mesenteric artery; prosthesis of the left renal artery was performed. Since the beginning of 2016, the patient has noted elevated AP of 200/110 mm Hg despite continuing hypotensive therapy. Diagnosis of Nonspecific aortoarteritis was proposed in May of 2017. Methylprednisolone therapy was administered: 250 mg No. 2 intravenously, Prednisolone: 25 mg a day orally. Due to signs of decreased blood flow to the left kidney, in August of 2017 extracorporeal repeat prosthesis of the left renal artery, bypass of the right middle renal artery with reversed autovein were performed.Results.During examination in October of 2017, the patient complained of weakness, frequent elevated AP of 200/110 mm Hg. In blood test: hemoglobin 106 g/l, erythrocyte sedimentation rate 38 mm/h, C-reactive protein 25 mg/l. A heterozygous mutation in the methylenetetrahydropholate reductase, a heterozygous mutation in the factor V gene (G1691A) were identified. Homocysteine level was normal, infection and oncological pathology were excluded. The following diagnosis was made: Takayasu»s arteritis type IV affecting the aorta and its branches, moderate activity. Occlusion of the celiac trunk. Aneurisms of the branches of the superior mesenteric artery. Critical stenosis of the left renal artery. Thrombosis of the aorto-renal prosthesis. Hypoplasia of the left kidney. Prednisolone 50 mg a day, metoprolol 50 mg a day, valsartan 160 mg a day, acetylsalicylic acid 100 mg a day were prescribed.Conclusion.The presented clinical observation shows the importance of comprehensive examination of young patients complaining of elevated AP for many years. Due to untimely diagnosis and absence of pathogenetic therapy, the patient suffered negative consequences of surgical treatment.


2020 ◽  
Vol 28 (4) ◽  
pp. 680-683
Author(s):  
Bülent Mert

An inferior mesenteric artery aneurysm is considered one of the visceral artery aneurysms, which is extremely rare, although its incidence of detection has been increasing in recent years. A 59-year-old male patient with a renal cell carcinoma in the left kidney was diagnosed with an inferior mesenteric artery aneurysm and treated surgically. Computed tomography revealed atrophy of the right kidney and occlusion of the celiac trunk, superior mesenteric artery, and left renal artery. There were no complications during the hospital stay and no mortality or morbidity was observed at three months of follow-up. In conclusion, the treatment of inferior mesenteric artery aneurysms is usually recommended, due to possible complications such as rupture and thromboembolism with high mortality and morbidity rates.


2005 ◽  
Vol 18 (7) ◽  
pp. 530-535 ◽  
Author(s):  
Marios Loukas ◽  
Sylvia Aparicio ◽  
Allon Beck ◽  
Raul Calderon ◽  
Maura Kennedy

2020 ◽  
pp. 1713
Author(s):  
Shirley Viana Peçanha ◽  
Raquel Batista Junger de Carvalho ◽  
Carlos Augusto Santos-Sousa ◽  
Emanoelli Aparecida Rodrigues dos Santos ◽  
Paulo Souza Júnior ◽  
...  

Objective. The aim of this study was explored the duplicity of renal artery in a specimen of Cerdocyon thous, focusing on the possibilities of clinical-surgical implication of this anatomical variation. Materials and Methods. Were dissected 32 specimens of Cerdocyon thous, obtained from the collections of the Laboratório de Ensino e Pesquisa em Morfologia dos Animais Domésticos e Selvagens do Departamento de Anatomia Animal e Humana, da Universidade Federal Rural do Rio de Janeiro e Laboratório de Anatomia Animal da Universidade Federal do Pampa. Results. Were observed a numerical variation in the left renal artery in an adult female cadaver. The left kidney had two renal arteries, one cranial and another caudal. The first renal artery of the left kidney, measuring 2.25 cm in length, originated laterally from the abdominal aorta at the level of the third lumbar vertebra. Moreover, it emanated two pre-hilar branches, one dorsal and one ventral, with the ventral branch supplying also to the adrenal gland. The second renal artery also originated laterally from the abdominal aorta at the level of the third lumbar vertebra and measured 2.36 cm in length. It also emitted two pre-hilar branches, one cranial and another caudal, which emitted the ureteral branch. Conclusions. Numerical variations of the renal arteries should be considered in the execution of surgical, radiological and experimental procedures in order to avoid mistakes made due to lack of knowledge of the possibility these variations both in domestic and wild animals.


1982 ◽  
Vol 242 (2) ◽  
pp. F190-F196 ◽  
Author(s):  
R. L. Chevalier

To determine whether reduced renal mass in the newborn results in acceleration of normal renal development, the response to unilateral nephrectomy (N) before 36 h of age was compared with sham-operated (S) guinea pigs during the period of most rapid nephron maturation. Studies were performed at 7-13 days (group I) and 19-25 days (group II). Mean arterial blood pressure (AP), left kidney glomerular filtration rate (LKGFR), and urine sodium excretion (UNaV) were measured. Superficial single nephron GFR (sSNGFR) and proximal fractional water reabsorption (FRH2O) were measured by micropuncture, and the number of glomeruli (NG) was determined by India ink perfusion. In view of the susceptibility of the neonate to extracellular fluid loss, groups I and II were plasma infused to maintain euvolemia and group II was compared with 19- to 25-day-old hydropenic animals (group III). Increase in body weight with age was unaffected by neonatal N. In group IN, the compensatory increase in sSNGFR was greater than SNGFR for deeper nephrons, which normally contribute most to GFR at this age. In group IIN there was an 80% adaptive increase in LKGFR that could not be entirely explained by the rise in SNGFR. Since NG in group IIN was greater than in group IIS and similar to that in adulthood, the enhanced adaptation in LKGFR in group IIN may be due in part to earlier recruitment of a population of underperfused glomeruli. FRH2O did not change significantly with age and did not differ in N and S groups. Animals in group III developed a rise in hematocrit during the experiment, and AP, LKGFR, and UNaV were lower in group IIIN than in group IIN. It is concluded that following N at birth, the sequence of renal functional maturation is accelerated while glomerulotubular balance is preserved. As a result of these adaptative changes, homeostasis is maintained and body growth proceeds without impairment.


Author(s):  
Dr. Hitesh Kumar Solanki ◽  
Dr. Omnath P Yadav ◽  
Dr. Anita J Gojiya

The study was conducted in department of physiology, B J Medical College, Ahmedabad from Mar. 2012 to Feb. 2013. This was a cross-sectional study to evaluate the effect of smoking on lung   function and serum lipids in asymptomatic smokers   and comparable non   smokers. The mean of the various spirometric parameters were calculated of the subjects for both the groups. The mean FVC in group I and group II was 2.60 ± 0.62 L and 4.10 ± 0.64L respectively. The mean FEV1 in group I was 1.91 ± 0.57L and     3.19 ± 0.77L in group II Group I had mean FEF25% - 75% and PEFR of 1.98 ± 0.67L/sec and 4.50 ± 1.57L/sec respectively. Group II had mean FEF25 – 75% of 4.22 ± 1.23L/sec and a mean PEFR of 7.22 ± 1.42L/sec. In young smokers and asymptomatic, still the spirometric values were significantly deranged as compared to controls. Even smokers with history of less pack years of smoking also had significant abnormalities of lung function. All he spirometric values in the two groups had statistically highly significant difference and were higher in non-smokers as compared to smokers. The spirometric values were reduced in smokers with history of smoking for as low as two pack years. Keywords: Progression, PFT, Asymptomatic & Smokers


Vascular ◽  
2020 ◽  
pp. 170853812093351
Author(s):  
Nazım Kankılıç ◽  
Mehmet S Aydın

Objectives Studies on the short-, medium and long-term effects of flow guiding stents are still limited. In this case report, we present three-year follow-up of the multilayer flow modulator stent in a 55-year-old patient with Crawford Type 2 thoracoabdominal aortic aneurysm. Methods A 55-year-old male patient with Crawford Type 2 thoracoabdominal aortic aneurysm had applied to our medical center. The aneurysm involved coeliac truncus and superior mesenteric artery and extended to the renal artery ostia. Multilayer flow modulator stent was successfully placed, and follow-up CT (Computed tomography) angiographic examination images recorded intermittently (36 months). Results After three years, it was observed that the left renal artery was thrombosed and the left kidney went to atrophy. Other major vascular branches were observed to be open. During this time, the aneurysm was completely closed with thrombus, but the diameter of the aneurysm continued to increase. Conclusions Multilayer flow modulator stents are safe in complex aortic aneurysms. The device increases the thrombus load in the aortic aneurysm and maintains the flow of the main vascular branches. But re-interventions, dilatation of the aneurysm sac and visceral branch obstructions are still challenging for multilayer flow modulator stents.


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