Background: Laparoscopic anatomic hepatectomy (LAH) has gradually become a routine surgical procedure. We previously reported that Glissonian approach combined with major hepatic vein first was effective for LAH. Because dorsal approach could effectively expose the major hepatic vein, we merged it with Glissonian approach in LAH for the right lobe.
Methods: Twenty patients who underwent LAH from January 2017 to November 2018 were retrospectively analysed. Of these patients, seven patients underwent laparoscopic right hemihepatectomy (LRH group), seven patients who underwent laparoscopic right posterior hepatectomy (LRPH group), and six patients who underwent laparoscopic hepatectomy for segment 7 (LS7 group). First, the paracaval portion of caudate lobe along the IVC was transected through dorsal approch after the corresponding hepatic pedicles were isolated through Glissonian approach. Next, the liver parenchyma was transected by dorsal approach until the corresponding major hepatic vein was exposed from its trunk to the root. Then, the liver parenchyma was transected by a ventral approach. Finally, the root of the major hepatic vein was transected.
Results: The mean age of the patients was 53.8 years and the male: female ratio was 8:12. The median operation time was 306.0 ± 58.2 min and the mean estimated volume of blood loss was 412.5 ± 255.4 mL. The mean duration of postoperative hospital stay was 10.2 days. The mean Pringle maneuver time was 64.8 ± 27.7 min. Five patients received transfusion of 2–4 U of red blood cells. Two patients suffered from transient hepatic dysfunction and one suffered from pleural effusion. None of the patients underwent conversion to an open procedure. The operative duration, volume of the blood loss, Pringle maneuver time, and postoperative hospital stay duration did not differ significantly among the LRH, LRPH, and LS7 groups (P > 0.05).
Conclusions: Dorsal approach combined with Glissonian approach for right lobe in LAH is feasible and effective, although it is essential to include more cases for further study.

Figure 1

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Figure 4
This is a list of supplementary files associated with this preprint. Click to download.
Supplemental Video 1: Dorsal approach with Glissonian approach in laparoscopic right hemihepatectomy (LRH)
Supplemental Video 2: Dorsal approach with Glissonian approach in laparoscopic right posterior hepatectomy (LRPH)
Supplemental Video 3: Dorsal approach with Glissonian approach in laparoscopic hepatectomy for segment 7 (LS7)
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Posted 04 Sep, 2020
On 03 Feb, 2021
Received 26 Jan, 2021
On 14 Jan, 2021
Invitations sent on 11 Sep, 2020
On 04 Sep, 2020
On 03 Sep, 2020
On 03 Sep, 2020
On 07 Aug, 2020
On 05 Aug, 2020
On 04 Aug, 2020
On 04 Aug, 2020
On 09 Jul, 2020
Received 30 Jun, 2020
On 24 Jun, 2020
Received 12 Jun, 2020
On 25 May, 2020
Received 14 May, 2020
Received 17 Mar, 2020
On 27 Feb, 2020
Invitations sent on 25 Feb, 2020
On 25 Feb, 2020
On 13 Feb, 2020
On 13 Feb, 2020
On 10 Feb, 2020
Posted 04 Sep, 2020
On 03 Feb, 2021
Received 26 Jan, 2021
On 14 Jan, 2021
Invitations sent on 11 Sep, 2020
On 04 Sep, 2020
On 03 Sep, 2020
On 03 Sep, 2020
On 07 Aug, 2020
On 05 Aug, 2020
On 04 Aug, 2020
On 04 Aug, 2020
On 09 Jul, 2020
Received 30 Jun, 2020
On 24 Jun, 2020
Received 12 Jun, 2020
On 25 May, 2020
Received 14 May, 2020
Received 17 Mar, 2020
On 27 Feb, 2020
Invitations sent on 25 Feb, 2020
On 25 Feb, 2020
On 13 Feb, 2020
On 13 Feb, 2020
On 10 Feb, 2020
Background: Laparoscopic anatomic hepatectomy (LAH) has gradually become a routine surgical procedure. We previously reported that Glissonian approach combined with major hepatic vein first was effective for LAH. Because dorsal approach could effectively expose the major hepatic vein, we merged it with Glissonian approach in LAH for the right lobe.
Methods: Twenty patients who underwent LAH from January 2017 to November 2018 were retrospectively analysed. Of these patients, seven patients underwent laparoscopic right hemihepatectomy (LRH group), seven patients who underwent laparoscopic right posterior hepatectomy (LRPH group), and six patients who underwent laparoscopic hepatectomy for segment 7 (LS7 group). First, the paracaval portion of caudate lobe along the IVC was transected through dorsal approch after the corresponding hepatic pedicles were isolated through Glissonian approach. Next, the liver parenchyma was transected by dorsal approach until the corresponding major hepatic vein was exposed from its trunk to the root. Then, the liver parenchyma was transected by a ventral approach. Finally, the root of the major hepatic vein was transected.
Results: The mean age of the patients was 53.8 years and the male: female ratio was 8:12. The median operation time was 306.0 ± 58.2 min and the mean estimated volume of blood loss was 412.5 ± 255.4 mL. The mean duration of postoperative hospital stay was 10.2 days. The mean Pringle maneuver time was 64.8 ± 27.7 min. Five patients received transfusion of 2–4 U of red blood cells. Two patients suffered from transient hepatic dysfunction and one suffered from pleural effusion. None of the patients underwent conversion to an open procedure. The operative duration, volume of the blood loss, Pringle maneuver time, and postoperative hospital stay duration did not differ significantly among the LRH, LRPH, and LS7 groups (P > 0.05).
Conclusions: Dorsal approach combined with Glissonian approach for right lobe in LAH is feasible and effective, although it is essential to include more cases for further study.

Figure 1

Figure 2

Figure 3

Figure 4
This is a list of supplementary files associated with this preprint. Click to download.
Supplemental Video 1: Dorsal approach with Glissonian approach in laparoscopic right hemihepatectomy (LRH)
Supplemental Video 2: Dorsal approach with Glissonian approach in laparoscopic right posterior hepatectomy (LRPH)
Supplemental Video 3: Dorsal approach with Glissonian approach in laparoscopic hepatectomy for segment 7 (LS7)
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