[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100614963":3},{"organization":4,"armGroups":7,"interventions":8,"overallOfficials":7,"centralContacts":16,"locations":25,"responsibleParty":39,"collaborators":7,"id":43,"slug":44,"hasResults":45,"nctId":46,"briefTitle":47,"officialTitle":48,"acronym":7,"eligibilityCriteria":49,"healthyVolunteers":45,"sex":50,"minAge":51,"maxAge":7,"enrollmentInfo":52,"targetDuration":7,"studyType":55,"phases":7,"briefSummary":56,"conditions":57,"keywords":7,"overallStatus":60,"whyStopped":7,"lastUpdateSubmitDate":61,"lastUpdatePostDateStruct":62,"startDateStruct":65,"completionDateStruct":67,"leadSponsor":69,"locationsCount":70},{"fullName":5,"class":6},"Tanta University","OTHER",null,[9,13],{"type":10,"name":11,"description":12,"armGroupLabels":7,"otherNames":7},"DIAGNOSTIC_TEST","Assessment of the SCV & SCA","The right SCV was measured using a linear array probe, placed in the sagittal plane at the deltopectoral triangle (beneath the proximal part of the middle of the clavicle and the area below the clavicle). In M-mode, measurements of SCV internal anteroposterior diameter, which is maximum during expiration (SCVmax) and minimum during inspiration (SCVmin), were taken in one respiratory cycle.\n\nUltrasound scan of the patient's supraclavicular area showing the subclavian artery.\n\nThe index was calculated as the ratio between the SCV maximum diameter and the SAD diameter",{"type":10,"name":14,"description":15,"armGroupLabels":7,"otherNames":7},"Assessment of the IVC and aorta","The IVC measurement will be obtained in the M-mode scan using a curvilinear (3.5 to 5 MHz) ultrasound transducer.\n\nThe transducer was placed longitudinally in the subxiphoid region. The IVC maximum and minimum anterior-posterior diameters were obtained just distal to the IVC-hepatic vein junction. In M-mode, measurements of IVC internal anteroposterior diameter, which is maximum during expiration (IVCmax) and minimum during inspiration. IVCmin), were taken in one respiratory cycle.\n\nThe abdominal aorta was identified to the left of the IVC, 10 mm above the coeliac trunk. The maximum internal anterior-posterior diameter of the aorta was obtained during systole.\n\nThe caval \u002Faorta diameter index was calculated as the ratio between the IVC maximum diameter and the aortic diameter. The index had a sensitivity of 96%, a specificity of 88%, and an accuracy of 95% to predict PSAH at a cut-off point of less than 1.2",[17,22],{"name":18,"role":19,"phone":20,"phoneExt":7,"email":21},"tarek AH Mostafa","CONTACT","01003591332","dr.tarek311@yahoo.com",{"name":23,"role":19,"phone":7,"phoneExt":7,"email":24},"sameh Ahmed","samehabdelkhalik1982@gmail.com",[26],{"facility":27,"status":7,"city":28,"state":29,"zip":30,"country":31,"countryCode":32,"cosmosGeoPoint":33,"geoPoint":38,"contacts":7},"tarek Abdelhay Mostafa","Tanta","El Gharbyia","31111","Egypt","EG",{"type":34,"coordinates":35},"Point",[36,37],31.00192,30.78847,{"lat":37,"lon":36},{"type":40,"investigatorFullName":41,"investigatorTitle":42,"investigatorAffiliation":5,"oldNameTitle":7,"oldOrganization":7},"PRINCIPAL_INVESTIGATOR","tarek abdel hay mostafa","principle investigator","100614963","efficacy-of-subclavian-veinartery-diameter-index-in-predicting-the-incidence-of-the-spinal-induced-hypotension-in-geriatric-patients-100614963",false,"NCT07286422","Efficacy of Subclavian Vein\u002FArtery Diameter Index in Predicting the Incidence of the Spinal-Induced Hypotension in Geriatric Patients","Efficacy of Subclavian Vein\u002FArtery Diameter Index in Predicting the Incidence of the Spinal-Induced Hypotension in Geriatric Patients: A Prospective, Observational Study.","Inclusion Criteria:\n\n* 1\\. Patients aged 65 or older. 2. Lower body surgeries to be done with spinal anesthesia. 3. BMI less than 30 kg\u002Fm2. 4. Patients with ASA I-III.\n\nExclusion Criteria:\n\n\\- 1. Patient refusal. 2. Patients with a history of peripheral arterial disease or atherosclerosis 3. Patients with a body mass index of greater than 30 kg\u002Fm2 4. Major bloody surgeries (class C surgeries) 5. Patients with a history of cardiovascular disorders, including arrhythmias, heart failure, tricuspid or mitral regurgitation, dilated right atrium or ventricle, AF, ejection fraction \\\u003C 45%, uncontrolled hypertension, systolic blood pressure \\\u003C90 mmHg, dyspnea, agitation.\n\n6\\. Patients with increased intra-abdominal pressure, intra-abdominal mass compressing the IVC.","ALL","65 Years",{"count":53,"type":54},107,"ESTIMATED","OBSERVATIONAL","The hypothesis of the study will be that the subclavian vein\u002Fsubclavian artery diameter (SCVD\u002FSCAD) index will be a good predictor of spinal-induced hypotension in geriatric patients.",[58,59],"Spinal Induced Hypotension","Old Age; Debility","NOT_YET_RECRUITING","2025-12-02",{"date":63,"type":64},"2025-12-16","ACTUAL",{"date":66,"type":54},"2026-01",{"date":68,"type":54},"2026-07",{"name":5,"class":6},1]