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Caruso M, Rinaldo C, Iacobellis F, Dell'Aversano Orabona G, Grimaldi D, Di Serafino M, Schillirò ML, Verde F, Sabatino V, Camillo C, Ponticiello G, Romano L. Abdominal compartment syndrome: what radiologist needs to know. LA RADIOLOGIA MEDICA 2023; 128:1447-1459. [PMID: 37747669 DOI: 10.1007/s11547-023-01724-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 09/05/2023] [Indexed: 09/26/2023]
Abstract
The intra-abdominal hypertension (IAH) and the abdominal compartment syndrome (ACS) are life-threatening conditions with a significant rate of mortality; therefore, early detection is paramount in their optimal management. IAH is diagnosed when the intra-abdominal pressure (IAP) is more than 12 mmHg. It can occur when the intra-abdominal volume increases (ileus, ascites, trauma, pancreatitis, etc.) and/or the abdominal wall compliance decreases. IAH can cause decreased venous flow, low cardiac output, renal impairment, and decreased respiratory compliance. Consequently, these complications can lead to multiple organ failure and induce the abdominal compartment syndrome (ACS) when IAP rises above 20 mmHg. The diagnosis is usually made with intravesical pressure measurement. However, this measurement was not always possible to obtain; therefore, alternative diagnostic techniques should be considered. In this setting, computed tomography (CT) may play a crucial role, allowing the detection and characterization of pathological conditions that may lead to IAH. This review is focused on the pathogenesis, clinical features, and radiological findings of ACS, because their presence allows radiologists to raise the suspicion of IAH/ACS in critically ill patients, guiding the most appropriate treatment.
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Affiliation(s)
- Martina Caruso
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy.
| | - Chiara Rinaldo
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
| | - Francesca Iacobellis
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
| | | | - Dario Grimaldi
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
| | - Marco Di Serafino
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
| | - Maria Laura Schillirò
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
| | - Francesco Verde
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
| | - Vittorio Sabatino
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
| | - Costanza Camillo
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
| | - Gianluca Ponticiello
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
| | - Luigia Romano
- Department of General and Emergency Radiology, "Antonio Cardarelli" Hospital, 80131, Naples, Italy
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2
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Srisajjakul S, Prapaisilp P, Bangchokdee S. Comprehensive review of acute small bowel ischemia: CT imaging findings, pearls, and pitfalls. Emerg Radiol 2022; 29:531-544. [PMID: 35122558 DOI: 10.1007/s10140-022-02028-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 01/31/2022] [Indexed: 01/12/2023]
Abstract
Acute small bowel ischemia is a life-threatening condition with a high mortality rate due to its lack of specific symptoms and laboratory profile, which render difficulty in establishing early diagnosis. The etiology of acute small bowel ischemia includes occlusive forms (arterial embolism, arterial thrombosis, and venous thrombosis) and nonocclusive mesenteric ischemia, of which arterial causes are far more common than venous causes. CT, the mainstay of accurate diagnoses, allows the identification of the features of vascular abnormalities and intestinal ischemic injuries, and helps clinicians to restore intestinal blood flow. Without treatment, the prognosis for acute small bowel ischemia is poor. A high index of suspicion and familiarity with the CT spectral findings of bowel ischemia are required to ensure rapid recognition of this condition.
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Affiliation(s)
- Sitthipong Srisajjakul
- Department of Radiology, Faculty of Medicine, Division of Diagnostic Radiology, Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand.
| | - Patcharin Prapaisilp
- Department of Radiology, Faculty of Medicine, Division of Diagnostic Radiology, Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand
| | - Sirikan Bangchokdee
- Department of Internal Medicine, Pratumthani Hospital, 7 Ladlumkaew Muang District, Pratumthani, 12000, Thailand
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Brillantino A, Lanza M, Antropoli M, Amendola A, Squillante S, Bottino V, Renzi A, Castriconi M. Usefulness of damage control approach in patients with limited acute mesenteric ischemia: a prospective study of 85 patients. Updates Surg 2021; 74:337-342. [PMID: 34686970 DOI: 10.1007/s13304-021-01192-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 10/10/2021] [Indexed: 02/03/2023]
Abstract
To evaluate the efficacy of the damage control approach by two-step surgical procedure in not critical patients (without sepsis or septic shock) with peritonitis from limited acute mesenteric ischemia. From April 2013 to April 2020, 85 patients [49 (57.7%) women and 36 (42.3%) men, median age 69.5 (range 38-92)] were enrolled in this study and underwent emergency surgery. After resection of ischemic bowel, basing on the individual decision of the single surgeon, the patients underwent primary end-to-end anastomosis (Group 1) or damage control approach (Group 2) including primary laparotomy with resection of ischemic bowel, temporary abdominal closure and a second-look procedure at 48 h with re-evaluation of bowel vitality. Forty-seven (55.3%) patients underwent one-stage surgical treatment and 38 (44.7%) patients received a two-step procedure. In the latter group, at second exploration, 8 (21%) patients required a further intestinal resection, due to mesenteric ischemia progression. Both anastomosis dehiscence rate and need for ileostomy in Group 1 patients were significantly higher than in Group 2 (23.4% vs 5.3%: p = 0.03 and 19.1% vs 2.6%: p = 0.03; Fisher's exact test). No significative differences in mortality and morbidity rate were found between the two groups. The damage control approach by two-step surgical procedure may represent a valid innovative option in the management of not critical patients with limited acute mesenteric ischemia, achieving a better clinical outcome if compared with surgical treatment by one-step procedure.
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Affiliation(s)
- Antonio Brillantino
- Department of Surgery, "A. Cardarelli" Hospital, Via A. Cardarelli 9, 80131, Naples, Italy.
| | - Michele Lanza
- Department of Surgery, "A. Cardarelli" Hospital, Via A. Cardarelli 9, 80131, Naples, Italy
| | - Massimo Antropoli
- Department of Surgery, "A. Cardarelli" Hospital, Via A. Cardarelli 9, 80131, Naples, Italy
| | - Alfonso Amendola
- Department of Surgery, "A. Cardarelli" Hospital, Via A. Cardarelli 9, 80131, Naples, Italy
| | - Simone Squillante
- Department of Surgery, "A. Cardarelli" Hospital, Via A. Cardarelli 9, 80131, Naples, Italy
| | - Vincenzo Bottino
- Department of Surgery, "Villa Betania" Hospital, Via Argine 604, 80147, Naples, Italy
| | - Adolfo Renzi
- Department of Surgery, "Buonconsiglio Fatebenefratelli" Hospital, Via Alessandro Manzoni 220, 80123, Naples, Italy
| | - Maurizio Castriconi
- Department of Surgery, "A. Cardarelli" Hospital, Via A. Cardarelli 9, 80131, Naples, Italy
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Iacobellis F, Narese D, Berritto D, Brillantino A, Di Serafino M, Guerrini S, Grassi R, Scaglione M, Mazzei MA, Romano L. Large Bowel Ischemia/Infarction: How to Recognize It and Make Differential Diagnosis? A Review. Diagnostics (Basel) 2021; 11:diagnostics11060998. [PMID: 34070924 PMCID: PMC8230100 DOI: 10.3390/diagnostics11060998] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/19/2022] Open
Abstract
Ischemic colitis represents the most frequent form of intestinal ischemia occurring when there is an acute impairment or chronic reduction in the colonic blood supply, resulting in mucosal ulceration, inflammation, hemorrhage and ischemic necrosis of variable severity. The clinical presentation is variable and nonspecific, so it is often misdiagnosed. The most common etiology is hypoperfusion, almost always associated with generalized atherosclerotic disease. The severity ranges from localized and transient ischemia to transmural necrosis of the bowel wall, becoming a surgical emergency, with significant associated morbidity and mortality. The diagnosis is based on clinical, laboratory suspicion and radiological, endoscopic and histopathological findings. Among the radiological tests, enhanced-CT is the diagnostic investigation of choice. It allows us to make the diagnosis in an appropriate clinical setting, and to define the entity of the ischemia. MR may be adopted in the follow-up in patients with iodine allergy or renal dysfunctions, or younger patients who should avoid radiological exposure. In the majority of cases, supportive therapy is the only required treatment. In this article we review the pathophysiology and the imaging findings of ischemic colitis.
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Affiliation(s)
- Francesca Iacobellis
- Department of General and Emergency Radiology, “Antonio Cardarelli” Hospital, Antonio Cardarelli St. 9, 80131 Naples, Italy; (M.D.S.); (L.R.)
- Correspondence:
| | - Donatella Narese
- Department of Radiology, University of Campania “L. Vanvitelli”, Miraglia 2 Sq., 80138 Naples, Italy; (D.N.); (R.G.)
| | - Daniela Berritto
- Department of Radiology, Hospital “Villa Fiorita”, Appia St., km 199,00, 81043 Capua, Italy;
| | - Antonio Brillantino
- Department of Emergency Surgery, “Antonio Cardarelli” Hospital, Antonio Cardarelli St. 9, 80131 Naples, Italy;
| | - Marco Di Serafino
- Department of General and Emergency Radiology, “Antonio Cardarelli” Hospital, Antonio Cardarelli St. 9, 80131 Naples, Italy; (M.D.S.); (L.R.)
| | - Susanna Guerrini
- Unit of Diagnostic Imaging, Department of Radiological Sciences, Azienda Ospedaliero-Universitaria Senese, Bracci St. 10, 53100 Siena, Italy;
| | - Roberta Grassi
- Department of Radiology, University of Campania “L. Vanvitelli”, Miraglia 2 Sq., 80138 Naples, Italy; (D.N.); (R.G.)
- Italian Society of Medical and Interventional Radiology (SIRM), SIRM Foundation, Via della Signora 2, 20122 Milan, Italy
| | - Mariano Scaglione
- Department of Radiology, James Cook University Hospital, Marton Road, Middlesbrough TS4 3BW, UK;
- Teesside University School of Health and Life Sciences, Middlesbrough TS1 3BX, UK
- Department of Radiology, Pineta Grande Hospital, Domitiana St. km 30/00, 81030 Castel Volturno, Italy
| | - Maria Antonietta Mazzei
- Unit of Diagnostic Imaging, Department of Medical, Surgical and Neuro Sciences and of Radiological Sciences, University of Siena, Azienda Ospedaliero-Universitaria Senese, Bracci St. 10, 53100 Siena, Italy;
| | - Luigia Romano
- Department of General and Emergency Radiology, “Antonio Cardarelli” Hospital, Antonio Cardarelli St. 9, 80131 Naples, Italy; (M.D.S.); (L.R.)
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Inoue A, Nitta N, Ota S, Takaki K, Imai Y, Misaki S, Iwai T, Sonoda A, Mukaisho KI, Murata K. MR Imaging-based Evaluation of Mesenteric Ischemia Caused by Strangulated Small Bowel Obstruction and Mesenteric Venous Occlusion: An Experimental Study Using Rabbits. Magn Reson Med Sci 2020; 19:125-134. [PMID: 31061268 PMCID: PMC7232033 DOI: 10.2463/mrms.mp.2019-0010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
PURPOSE This study assessed the MRI findings of strangulated small bowel obstruction (SBO) and mesenteric venous occlusion (MVO) in a rabbit model using 3T MRI. MATERIALS AND METHODS Twenty rabbits were included in this study. The strangulated SBO and MVO models were generated via surgical procedures in nine rabbits, and sham surgery was performed in two rabbits. The success of generating the models was confirmed via angiographic, macroscopic, and microscopic findings after the surgical procedure. MRI was performed before and 30 min after inducing mesenteric ischemia. T1-weighted images (T1WIs), T2-weighted images (T2WIs), and fat-suppressed T2WIs (FS-T2WIs) were obtained using the BLADE technique, and fat-suppressed T1WIs (FS-T1WIs) were obtained. The signal intensities of the affected bowel before and after the surgical procedures were visually categorized as high, iso, and low intense compared with the findings for the normal bowel wall on all sequences. Bowel wall thickness was measured, and the signal intensity ratio (SI ratio) was calculated using the signal intensities of the bowel wall and psoas muscle. RESULTS Angiographic, macroscopic, and microscopic findings confirmed that all surgical procedures were successful. The ischemic bowel wall was thicker than the normal bowel. The bowel wall was thicker in the MVO model (3.17 ± 0.55 mm) than in the strangulated SBO model (2.26 ± 0.46 mm). The signal intensity and SI ratio of the bowel wall were significantly higher after the procedure than before the procedure on all sequences in both models. The mesentery adjacent to the ischemic bowel loop exhibited a high signal intensity in all animals on FS-T2WIs. CONCLUSION Non-contrast MRI can be used to evaluate mesenteric ischemia caused by strangulated SBO and MVO. FS-T2WIs represented the best modality for depicting the high signal intensity in the bowel wall and mesentery caused by ischemia.
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Affiliation(s)
- Akitoshi Inoue
- Department of Radiology, Shiga University of Medical Science
| | - Norihisa Nitta
- Department of Radiology, Shiga University of Medical Science
| | - Shinichi Ota
- Department of Radiology, Shiga University of Medical Science
| | - Kai Takaki
- Department of Radiology, Shiga University of Medical Science
| | - Yugo Imai
- Department of Radiology, Shiga University of Medical Science
| | - Sayaka Misaki
- Department of Radiology, Shiga University of Medical Science
| | - Takayasu Iwai
- Department of Radiology, Shiga University of Medical Science
| | - Akinaga Sonoda
- Department of Radiology, Shiga University of Medical Science
| | - Ken-Ichi Mukaisho
- Division of Molecular and Diagnostic Pathology, Shiga University of Medical Science
| | - Kiyoshi Murata
- Department of Radiology, Shiga University of Medical Science
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Manetta R, Capretti I, Belleggia N, Marsecano C, Viscido A, Bruno F, Arrigoni F, Ma L, Guglielmi G, Splendiani A, Di Cesare E, Masciocchi C, Barile A. Magnetic resonance enterography (MRE) and ultrasonography (US) in the study of the small bowel in Crohn's disease: state of the art and review of the literature. ACTA BIO-MEDICA : ATENEI PARMENSIS 2019; 90:38-50. [PMID: 31085972 PMCID: PMC6625566 DOI: 10.23750/abm.v90i5-s.8337] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Indexed: 02/06/2023]
Abstract
Crohn’s disease (CD) is a chronic idiopathic disease and its diagnosis is based on a combination of clinical symptoms, laboratory tests and imaging data. There isn’t a diagnostic gold standard: the ileocolonoscopy with mucosal biopsies represents the standard for luminal disease, while cross-sectional imaging such as Ultrasound (US), Computed Tomography (CT) or Magnetic Resonance Imaging (MRI) can show transmural alterations and extraintestinal manifestations. CD is usually diagnosed in the young age and after baseline diagnosis, the patients have to undergo to variable follow-up depending on remission or active disease. The aim of our review is to compare Magnetic Resonance Enterography (MRE) to Ultrasonography (US) in the follow-up of CD. (www.actabiomedica.it)
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Affiliation(s)
- Rosa Manetta
- Division of Radiology, S. Salvatore Hospital, L'Aquila, Italy.
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A rat model of acute kidney injury through systemic hypoperfusion evaluated by micro-US, color and PW-Doppler. Radiol Med 2018; 124:323-330. [PMID: 30542911 DOI: 10.1007/s11547-018-0962-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 11/18/2018] [Indexed: 10/27/2022]
Abstract
AIM To create an animal model of acute renal ischemia induced by systemic hypoperfusion, controllable and reproducible to study, in real time, hemorrhagic shock changes with micro-imaging. ANIMALS AND METHODS Hemorrhagic shock was induced in rats activating a syringe pump setup to remove 1 mL/min of blood, through the femoral artery catheter. The withdrawal was continued until the mean arterial pressure (MAP) dropped to 25-30 mmHg. For the next 60 min, the MAP was maintained at a constant pressure value, by automatic pump infusion and withdrawal. Micro-ultrasound imaging was performed using the Vevo 2100 system with the MS250 transducer (13-24 MHz). Renal size, morphology and echogenicity were evaluated in B-mode. Renal blood flow was evaluated using color and PW-Doppler. RESULTS After 1 h of ischemia, B-mode images documented slight changes in kidney echogenicity. Color and PW-Doppler analysis showed a reduction in renal blood flow in kidneys during the hypoperfusion with a progressive and significant change from baseline values of resistive index (RI). At the histological evaluation, 60 min of hypoperfusion resulted in ischemic changes in the kidneys. CONCLUSIONS The results of this experimental study encourage the use of the described model to study acute renal ischemia trough severe hypoperfusion. The histological data confirmed that the model was able to produce injury in renal parenchyma. It can be used to assess acute ischemic damage not only in the kidney but also in other organs by using all available dedicated small animals imaging techniques.
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Mazzei MA, Gentili F, Mazzei FG, Grassi R, Volterrani L. Non-occlusive mesenteric ischaemia: CT findings, clinical outcomes and assessment of the diameter of the superior mesenteric artery: Don't forget the reperfusion process! Br J Radiol 2018; 92:20180736. [PMID: 30215531 DOI: 10.1259/bjr.20180736] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Maria Antonietta Mazzei
- Department of Medicine, Surgery and Neuroscience, Diagnostic Imaging, University of Siena, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Francesco Gentili
- Department of Medicine, Surgery and Neuroscience, Diagnostic Imaging, University of Siena, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | | | - Roberto Grassi
- Department of Radiology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Luca Volterrani
- Department of Medicine, Surgery and Neuroscience, Diagnostic Imaging, University of Siena, Azienda Ospedaliera Universitaria Senese, Siena, Italy
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9
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Mazzei MA. Acute mesenteric ischemia: guidelines of the World Society of Emergency Surgery: a brief radiological commentary. World J Emerg Surg 2018; 13:34. [PMID: 30069228 PMCID: PMC6064129 DOI: 10.1186/s13017-018-0197-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 07/19/2018] [Indexed: 01/26/2023] Open
Abstract
The aim of this letter is to report some deeper explanations regarding the role of imaging in acute mesenteric ischemia. The correlation between some computed tomography findings and the cause of ischemia as well as other main factors that could condition the computed tomography appearance of this critical issue is also discussed.
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Affiliation(s)
- Maria Antonietta Mazzei
- Department of Medical, Surgical and Neuro Sciences, Diagnostic Imaging, University of Siena, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
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10
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Iacobellis F, Perillo A, Iadevito I, Tanga M, Romano L, Grassi R, Nicola R, Scaglione M. Imaging of Oncologic Emergencies. Semin Ultrasound CT MR 2017; 39:151-166. [PMID: 29571552 DOI: 10.1053/j.sult.2017.12.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Oncologic emergencies can be either the result of the primary tumor, its metastasis, a paraneoplastic syndrome or reaction to the chemotherapy. Imaging plays a crucial role in ensuring a prompt diagnosis as well as assisting in the therapeutic management. In this article, we discuss the common thoracic and abdominal oncological emergencies that may be encountered in an emergency department.
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Affiliation(s)
- Francesca Iacobellis
- Department of Radiology, "Pineta Grande" Hospital, Castel Volturno (CE), Italy; Department of Radiology, "A. Cardarelli" Hospital, Naples, Italy; Department of Radiology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Alessandra Perillo
- Department of Radiology, "Pineta Grande" Hospital, Castel Volturno (CE), Italy; Department of Radiology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Isabella Iadevito
- Department of Radiology, "Pineta Grande" Hospital, Castel Volturno (CE), Italy
| | - Michela Tanga
- Department of Radiology, "Pineta Grande" Hospital, Castel Volturno (CE), Italy
| | - Luigia Romano
- Department of Radiology, "A. Cardarelli" Hospital, Naples, Italy
| | - Roberto Grassi
- Department of Radiology, University of Campania "L. Vanvitelli", Naples, Italy
| | - Refky Nicola
- Department of Radiology, SUNY-Upstate University and Medical Center, Syracuse, NY
| | - Mariano Scaglione
- Department of Radiology, "Pineta Grande" Hospital, Castel Volturno (CE), Italy; Department of Radiology, Sunderland Royal Hospital, NHS, Sunderland, UK.
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Diagnostic value of arterial blood gas lactate concentration in the different forms of mesenteric ischemia. Eur J Trauma Emerg Surg 2017; 44:265-272. [PMID: 28612169 DOI: 10.1007/s00068-017-0805-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 05/29/2017] [Indexed: 12/21/2022]
Abstract
PURPOSE The role of serum lactate measurement in patients with intestinal ischemia still remains unclear. The aim of this study was to prospectively evaluate the diagnostic performance of arterial blood gas lactate concentrations in the patients with acute mesenteric ischemia and its different forms. METHODS All the patients reporting abdominal pain associated with risk factors for mesenteric ischemia underwent arterial blood gas and contrast enhanced abdominal computer tomography (CT). RESULTS At CT, 201 patients (70.7%) showed a nonischemic disease (group 1) and 83 patients (29.2%) showed findings of mesenteric ischemia. Out of these, 35 patients (42.1%) showed bowel ischemia secondary to non vascular causes (group 2) and 48 (57.8%) had a vascular intestinal ischemia (group 3). Out of these, 20 showed small bowel arterial occlusion (group 3a), 13 a small bowel nonocclusive ischemia (group 3b), 7 a venous small bowel occlusion (group 3c) and 8 showed isolated colonic ischemia (group 3d). The median lactate serum level was significantly higher in patients with vascular ischemia if compared with patients with nonischemic disease and secondary mesenteric ischemia (p < 0.0001; Kruskal-Wallis test). The areas under ROC curves for the lactate serum levels in the groups 2, 3, 3a, 3b, 3c and 3d were, respectively, 0.61, 0.85, 0.93, 0.93, 0.68 and 0.67. CONCLUSIONS Arterial blood gas lactate levels seem to show good diagnostic accuracy in diagnosing small bowel arterial and nonocclusive ischemia and poor accuracy in diagnosing secondary mesenteric ischemia, small bowel venous ischemia and ischemic colitis.
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12
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Radiology and mesenteric ischaemia. Clin Radiol 2015; 70:698-705. [PMID: 25812475 DOI: 10.1016/j.crad.2015.02.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 10/29/2014] [Accepted: 02/17/2015] [Indexed: 02/07/2023]
Abstract
This review focuses on the radiology of mesenteric ischaemia. Covering the acute and chronic presentations, both of which result from impaired vascularisation of the gastrointestinal tract, we evaluate the role of radiographs, ultrasound, CT, MRI, and catheter angiography in the diagnosis of these conditions. Looking to the future, we also assess some of the emerging imaging techniques. Across medicine and surgery there has been a significant shift towards minimally invasive interventions. Although percutaneous revascularisation of chronic mesenteric ischaemia has been performed for some time, there has been a developing trend for the use of such techniques in acute mesenteric ischaemia. We evaluate the available evidence for the use of these percutaneous interventions and assess how they compare with or in some instances compliment traditional surgical alternatives.
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13
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Mazzei MA, Volterrani L. Nonocclusive mesenteric ischaemia: think about it. Radiol Med 2014; 120:85-95. [DOI: 10.1007/s11547-014-0460-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 08/11/2014] [Indexed: 01/16/2023]
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14
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CT findings in acute, subacute, and chronic ischemic colitis: suggestions for diagnosis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:895248. [PMID: 25247191 PMCID: PMC4163450 DOI: 10.1155/2014/895248] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 08/12/2014] [Indexed: 12/27/2022]
Abstract
Purpose. This paper aims at evaluating CT findings of occlusive and nonocclusive ischemic colitis (IC), in correlation with the etiology and the different phases of the disease. Materials and Methods. CT examination and clinical history of 32 patients with proven IC were retrospectively reviewed. The CT findings were analyzed according to the different phases of the disease (acute, subacute, and chronic). Results. Among the 32 CT examinations performed in the acute phase, 62.5% did not present signs of occlusion of the superior mesenteric artery (SMA) or inferior mesenteric artery (IMA), whereas IMA occlusion was detected in 37.5% of CT examinations. In the acute phase, the presence of pericolic fluid was found in 100% of patients undergoing progressive resorption from acute to subacute phase if an effective reperfusion occurred; the bowel wall thickening was observed in 28.1% patients in acute phase and in 86.4% patients evaluated in subacute phase. The unthickened colonic wall was found in all conditions where ischemia was not followed by effective reperfusion (71.9% of cases), and it was never found in chronic phase, when the colon appeared irregularly thickened. Conclusion. CT allows determining the morphofunctional alterations associated with the IC discriminating the occlusive forms from the nonocclusive forms. CT, furthermore, allows estimating the timing of ischemic damage.
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15
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Early MRI findings of small bowel obstruction: an experimental study in rats. LA RADIOLOGIA MEDICA 2014; 119:377-83. [PMID: 24408040 DOI: 10.1007/s11547-013-0370-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Accepted: 08/22/2013] [Indexed: 10/25/2022]
Abstract
PURPOSE This study was undertaken to identify the early magnetic resonance imaging (MRI) findings of small bowel obstruction (SBO) and to analyse their evolution over time comparing them with histological findings. MATERIALS AND METHODS SBO was surgically induced in 10 rats divided into two groups monitored at predetermined time points until the 8th hour: group 1, macroscopically observed and group 2, investigated with 7-Tesla micro-MRI (7 T μ-MR). At the end of observation, the bowel was excised for histological analysis. RESULTS 7 T μ-MRI T2-w sequences acquired 15 min after SBO, showed early evidence of bowel wall hyperintensity and a small amount of peritoneal free fluid. At 1 h, a hyperintensity of the loop proximal to the obstruction was found and, after 4 h, free fluid between the loops, bowel wall thickening and increased wall hyperintensity were also found. After 6 h hypotonic reflex ileus (only gas-filled dilated loops) was detected, which became paralytic ileus (dilation with air-fluid levels) after 8 h. The MRI findings were all confirmed at histological examination. CONCLUSIONS This study allows definition of the early MRI features of SBO (peritoneal free fluid and hyperintensity of the injured bowel) and their chronological evolution, also confirmed by histological examination. Our data suggest a potential role of MR imaging in the early diagnostic assessment and management of patients with SBO. The chance to achieve an early detection of bowel injury and to correlate the histological pattern with imaging findings could contribute to a finer and earlier diagnosis and a more effective treatment.
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Reginelli A, Iacobellis F, Berritto D, Gagliardi G, Di Grezia G, Rossi M, Fonio P, Grassi R. Mesenteric ischemia: the importance of differential diagnosis for the surgeon. BMC Surg 2013; 13 Suppl 2:S51. [PMID: 24267670 PMCID: PMC3850956 DOI: 10.1186/1471-2482-13-s2-s51] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background Intestinal ischemia is an abdominal emergency that accounts for approximately 2% of gastrointestinal illnesses. It represents a complex of diseases caused by impaired blood perfusion to the small and/or large bowel including acute arterial mesenteric ischemia (AAMI), acute venous mesenteric ischemia (AVMI), non occlusive mesenteric ischemia (NOMI), ischemia/reperfusion injury (I/R), ischemic colitis (IC). In this study different study methods (US, CT) will be correlated in the detection of mesenteric ischemia imaging findings due to various etiologies. Methods Basing on our institutions experience, 163 cases of mesenteric ischemia/infarction from various cases, investigated with CT and undergone surgical treatment were retrospectively evaluated, in particular trought the following findings: presence/absence of arterial/venous obstruction, bowel wall thickness and enhancement, presence/absence of spastic reflex ileus, hypotonic reflex ileus or paralitic ileus, mural and/or portal/mesenteric pneumatosis, abdominal free fluid, parenchymal ischemia/infarction (liver, kidney, spleen). Results To make an early diagnosis useful to ensure a correct therapeutic approach, it is very important to differentiate between occlusive (arterial, venous) and non occlusive causes (NOMI). The typical findings of each forms of mesenteric ischemia are explained in the text. Conclusion The radiological findings of mesenteric ischemia have different course in case of different etiology. In venous etiology the progression of damage results faster than arterial even if the symptomatology is less acute; bowel wall thickening is an early finding and easy to detect, simplifying the diagnosis. In arterial etiology the damage progression is slower than in venous ischemia, bowel wall thinning is typical but difficult to recognize so diagnosis may be hard. In the NOMI before/without reperfusion the ischemic damage is similar to AAMI with additional involvement of large bowel parenchymatous organs. In reperfusion after NOMI and after AAMI the CT and surgical findings are similar to those of AVMI, and the injured bowel results quite easy to identify. The prompt recognition of each condition is essential to ensure a successful treatment.
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Reginelli A, Genovese E, Cappabianca S, Iacobellis F, Berritto D, Fonio P, Coppolino F, Grassi R. Intestinal Ischemia: US-CT findings correlations. Crit Ultrasound J 2013; 5 Suppl 1:S7. [PMID: 23902826 PMCID: PMC3711730 DOI: 10.1186/2036-7902-5-s1-s7] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background Intestinal ischemia is an abdominal emergency that accounts for approximately 2% of gastrointestinal illnesses. It represents a complex of diseases caused by impaired blood perfusion to the small and/or large bowel including acute arterial mesenteric ischemia (AAMI), acute venous mesenteric ischemia (AVMI), non occlusive mesenteric ischemia (NOMI), ischemia/reperfusion injury (I/R), ischemic colitis (IC). In this study different study methods (US, CT) will be correlated in the detection of mesenteric ischemia imaging findings due to various etiologies. Methods Basing on experience of our institutions, over 200 cases of mesenteric ischemia/infarction investigated with both US and CT were evaluated considering, in particular, the following findings: presence/absence of arterial/venous obstruction, bowel wall thickness and enhancement, presence/absence of spastic reflex ileus, hypotonic reflex ileus or paralitic ileus, mural and/or portal/mesenteric pneumatosis, abdominal free fluid, parenchymal ischemia/infarction (liver, kidney, spleen). Results To make an early diagnosis useful to ensure a correct therapeutic approach, it is very important to differentiate between occlusive (arterial,venous) and nonocclusive causes (NOMI). The typical findings of each forms of mesenteric ischemia are explained in the text. Conclusion At present, the reference diagnostic modality for intestinal ischaemia is contrast-enhanced CT. However, there are some disadvantages associated with these techniques, such as radiation exposure, potential nephrotoxicity and the risk of an allergic reaction to the contrast agents. Thus, not all patients with suspected bowel ischaemia can be subjected to these examinations. Despite its limitations, US could constitutes a good imaging method as first examination in acute settings of suspected mesenteric ischemia.
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Affiliation(s)
- A Reginelli
- Second University of Naples, Department of Clinical and Experimental Internistic F, Magrassi - A, Lanzara, Naples, Italy.
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