Laparoscopic Bioimpedacemetry of the Liver


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Abstract

Relevance Measurement of electric impedance could be an informative diagnostic method, permitting to clarify the functional reserve of the liver in patients who are scheduled to undergone liver resection.

The purpose of the study To work out the methodology of laparoscopic bioimpedancemetry of the liver. 

Materials and methods Laparoscopic biompedancemetry (LBIM) performed to 42 patients during planned cholecystectomy (n=23), liver cyst fenestration (n=3), liver resection combined with radiofrequent ablation of colorectal metastases (n=3), nephrectomy (n=4), diagnostic laparoscopy (n=9). Bioimpedancemetry (BIM) performed with bipolar needle electrodes and the original device for measurement of full electric impedance of biological tissues "BIM II" (patent of Russian Federation № 2366360). The value of electric impedance determined in one zone of the electrode injection in series on three frequencies - 2 kHz, 10 kHz, 20 kHz.

Results and their discussion When analyzing the results of the study valid differences were noticed between the electric impedance of intact liver and the liver with cirrhotic and metastatic changes.

Conclusion LBIM of the liver is available, safe and informative diagnostic method, which permits to clarify the functional condition of the liver. The results of LBIM could be useful in planning of major liver resections and prediction of outcome of surgical treatment of patients with liver pathology

About the authors

A.I. Evdokimov Moscow State Medical and Dental University, Moscow, Russian Federation

Author for correspondence.
Email: author@vestnik-surgery.com
MD, PhD, Professor of Surgery, chief, Department of Surgery and Laboratory of Minimally Invasive Surgery, a.I.evdokimov Moscow State university of Medicine and Dentistry

A.I. Evdokimov Moscow State Medical and Dental University, Moscow, Russian Federation

Email: leonov-serg@yandex.ru
MD, PhD, associate Professor, Department of Surgery and Laboratory of Minimally Invasive Surgery, a.I. evdokimov Moscow State university of Medicine and Dentistry

Federal Research centre of specialized types of health care and medical technology FMBA of Russia, Moscow, Russian Federation

Email: author@vestnik-surgery.com
MD, PhD, Professor, chief, Division of Surgery, Federal Research clinical centre of Specialized Medical care and Medical technologies FMba of Russia 4

I.M. Sechenov First Moscow State Medical university, Moscow, Russian Federation

Email: author@vestnik-surgery.com
MD, PhD, Professor, Department of Radiology,  I.M.Sechenov First Moscow State Medical university

A.I. Evdokimov Moscow State Medical and Dental University, Moscow, Russian Federation

Email: author@vestnik-surgery.com
MD, PhD, assistant Professor, Department of Surgery, a.I.evdokimov Moscow State university of Medicine and Dentistry

Federal Research centre of specialized types of health care and medical technology FMBA of Russia, Moscow, Russian Federation

Email: author@vestnik-surgery.com
MD, Resident, Department of Surgery, anestesiology and endoscopy, Istitute of Post graduate education FMba of Russia

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