NCT01639170

Brief Summary

The aim of this study is to evaluate if the presence of abdominal free air on a plain chest radiograph predicts gastrointestinal perforation. We aimed to enroll all patients undergoing abdominal surgery reporting major symptoms and signs suggestive of gastrointestinal perforation (abdominal pain, leukocytosis, fever) within the third postoperative day.

Trial Health

55
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
600

participants targeted

Target at P75+ for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2011

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2012

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

July 10, 2012

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 12, 2012

Completed
Last Updated

July 17, 2012

Status Verified

June 1, 2012

Enrollment Period

1 year

First QC Date

July 10, 2012

Last Update Submit

July 16, 2012

Conditions

Keywords

PneumoperitoneumFree airSurgeryPerforationRadiograph

Outcome Measures

Primary Outcomes (1)

  • prediction of gastrointestinal perforation

    • Prediction of the presence of gastrointestinal perforation by the finding of intra-abdominal free air on a chest radiograph after abdominal surgery

    Within 3 days from surgery

Secondary Outcomes (1)

  • time taken for the absorption of intra-abdominal free air

    within 3 days from surgery

Study Arms (1)

subjects undergoing abdominal surgery

EXPERIMENTAL

Subjects who undergone abdominal intervention and reported major symptoms and signs suggestive of gastrointestinal perforation (abdominal pain, leukocytosis, fever) within the third postoperative day. Exclusion criteria: inability to consent to the study, age ≤18 yr, certain or probable pregnancy, inability to remain in upright position for more than 10 minutes.

Radiation: chest radiograph

Interventions

All enrolled patients underwent erect chest x-rays assessment. In all cases the diagnosis of pneumoperitoneum was based upon the plain film identification of subdiaphragmatic air on the upright posteroanterior chest radiograph. All patients were transported from their hospital rooms to the radiology department in wheelchairs and remained in an upright position for more than 10 min before the chest radiographs were obtained. In all cases upright posteroanterior was obtained with the patient standing, using 183-cm distance, 125 kVp, phototimed exposure, and radiographic film with a wide exposure latitude. The disappearance of intraabdominal free gas will be evaluated every 48h and will be defined as the loss of the

subjects undergoing abdominal surgery

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Abdominal surgery and major symptoms and signs suggestive of gastrointestinal perforation within the third postoperative day.

You may not qualify if:

  • inability to consent to the study, age ≤18 yr, certain or probable pregnancy, inability to remain in upright position for more than 10 minutes.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

"Federico II" University

Naples, Italy, 80131, Italy

RECRUITING

Related Publications (9)

  • Tang CL, Yeong KY, Nyam DC, Eu KW, Ho YH, Leong AF, Tsang CB, Seow-Choen F. Postoperative intra-abdominal free gas after open colorectal resection. Dis Colon Rectum. 2000 Aug;43(8):1116-20. doi: 10.1007/BF02236559.

  • Hope WW, Heniford BT, Norton HJ, Lincourt AE, Teigland CM, Kercher KW. Duration and clinical significance of radiographically detected "free air" after laparoscopic nephrectomy. Surg Laparosc Endosc Percutan Tech. 2009 Oct;19(5):415-8. doi: 10.1097/SLE.0b013e3181b6bff3.

  • BRYANT LR, WIOT JF, KLOECKER RJ. A STUDY OF THE FACTORS AFFECTING THE INCIDENCE AND DURATION OF POSTOPERATIVE PNEUMOPERITONEUM. Surg Gynecol Obstet. 1963 Aug;117:145-50. No abstract available.

  • Nielsen KT, Lund L, Larsen LP, Knudsen P. Duration of postoperative pneumoperitoneum. Eur J Surg. 1997 Jul;163(7):501-3.

  • Gayer G, Jonas T, Apter S, Amitai M, Shabtai M, Hertz M. Postoperative pneumoperitoneum as detected by CT: prevalence, duration, and relevant factors affecting its possible significance. Abdom Imaging. 2000 May-Jun;25(3):301-5. doi: 10.1007/s002610000036.

  • Schauer PR, Page CP, Ghiatas AA, Miller JE, Schwesinger WH, Sirinek KR. Incidence and significance of subdiaphragmatic air following laparoscopic cholecystectomy. Am Surg. 1997 Feb;63(2):132-6.

  • Millitz K, Moote DJ, Sparrow RK, Girotti MJ, Holliday RL, McLarty TD. Pneumoperitoneum after laparoscopic cholecystectomy: frequency and duration as seen on upright chest radiographs. AJR Am J Roentgenol. 1994 Oct;163(4):837-9. doi: 10.2214/ajr.163.4.8092019.

  • Earls JP, Dachman AH, Colon E, Garrett MG, Molloy M. Prevalence and duration of postoperative pneumoperitoneum: sensitivity of CT vs left lateral decubitus radiography. AJR Am J Roentgenol. 1993 Oct;161(4):781-5. doi: 10.2214/ajr.161.4.8372757.

  • Milone M, Di Minno MN, Bifulco G, Maietta P, Sosa Fernandez LM, Musella M, Iaccarino V, Buccelli C, Nappi C, Milone F. Diagnostic value of abdominal free air detection on a plain chest radiograph in the early postoperative period: a prospective study in 648 consecutive patients who have undergone abdominal surgery. J Gastrointest Surg. 2013 Sep;17(9):1673-82. doi: 10.1007/s11605-013-2282-6. Epub 2013 Jul 20.

MeSH Terms

Conditions

Pneumoperitoneum

Condition Hierarchy (Ancestors)

Peritoneal DiseasesDigestive System Diseases

Central Study Contacts

Francesco Milone, Prof

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. of Surgery. Director of the department

Study Record Dates

First Submitted

July 10, 2012

First Posted

July 12, 2012

Study Start

June 1, 2011

Primary Completion

June 1, 2012

Last Updated

July 17, 2012

Record last verified: 2012-06

Locations