abdomen sketch

I would like to focus on some skills that I believe are important to practice, in order to improve as a surgeon.

Although teaching is fundamental, much of the surgical art is learned by observing other surgeons. In particular, since it is not a lot of practice, but it is only perfect practice that leads to perfection, it is important to observe excellent surgery.

What is observed is reproduced, therefore it is a good thing to observe it sincerely and it is even better to observe the same operation performed by different surgeons. Finally, it is essential to observe yourself in the act of operating. If we have observed carefully, at first we will have more doubts than certainties. Addressing these doubts and reviewing our certainties will lead us to improve. If at this point we need to imagine a solution, my advice is to help yourself by drawing it.

Imagining and drawing an intervention before doing it is a practice that I consider of fundamental importance.

Here I give the example of my Laparoscopy-Enhanced HIPEC technique.

I learned how to perform HIPEC with the Coliseum technique (open abdomen). I have studied it. Then I saw it done. Then I helped others to do it, with enthusiasm. Finally I applied it, and I began to have doubts: it was impossible to maintain hyperthermia because there was too much heat dispersion, a homogeneous distribution of heat was impossible. I thought it was excellent, I went to review the literature and found that the supposed superiority of that technique was not based on valid scientific evidence. I had a problem: in order to maintain the temperature of the peritoneal fluid, I needed to keep the abdomen closed, but in order to mix the abdominal contents, I needed to leave the abdomen open. I had to find a way to handle the abdominal contents in a closed abdomen.

The solution came to me from my experience in laparoscopy, in particular from my work on the lysis of adhesions by laparoscopy. I reviewed the recordings of some of my laparoscopic adhesiolysis operations, and thought of using the same strategy to free and move the intestines and the abdominal organs during HIPEC with a closed abdomen. The result is in these drawings.

the positioning of the laparoscopic ports
the positioning of the drains and inlets of the chemotherapy and gas for laparoscopy
the study on the distribution of abdominal pressure and on the inflation pressure
the application of Stevino's Law to the determination of abdominal pressure
the 3D simulation and rendering of the technique

On my YouTube channel you will find some videos on doubts, problems and solutions related to the development of the LE-HIPEC technique. The article describing the technique is available on the Surgical Education Resources page.

Drawing by hand helps you to imagine in three dimensions the development and steps of the intervention you want to build. If you want, you can then have fun translating everything into three-dimensional models, with the help of one of the many open source software available. Finally, it is good to film ourselves while we work, then review the video several times to observe ourselves from the outside, then make us have new doubts and then change the things that do not satisfy us. The cycle has no end, but it is certainly virtuous.

Here are some drawings that I used to imagine some of the techniques I described and applied.

Tubularized Gastrostomy

sketch for the positioning of the laparoscopic ports
three-dimensional model of the operating steps

Laparoscopic Right Colectomy

three-dimensional model of the progressive technical steps

Chilaiditi Syndrome

three-dimensional model of the position of the colon

Robotic left colectomy in lateral position, synchronous with excision of a left renal neoplasm

The design of this intervention, to be performed simultaneously with the Urologist, was particularly interesting because it required to solve some problems: 1. to avoid changing the lateral position necessary for the Urologist to work; 2. to minimize the need for additional ports, by mediating between those needed by the Urologist and those needed by me; 3. having to alternate with the Urologist at the operating table, to try to use the same robotic instruments, avoiding the replacement of instruments.

sketch of the patient's position and laparoscopic ports
simulation of the access route for the vascular ligation time

Please visit the Surgical Education Resources page for further information.

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DR. MARCO LOTTI

Professionista in Chirurgia Generale e Oncologica, Laparoscopia, Chirurgia Robotica.

E’ un Chirurgo che vanta 30 anni di esperienza sul campo, con migliaia di Pazienti seguiti e curati presso alcuni tra i migliori Ospedali della Lombardia.

Autore di numerose opere didattiche e tecniche chirurgiche innovative, unisce competenze avanzate di Chirurgia Generale, Chirurgia Laparoscopica e Mininvasiva, Chirurgia Oncologica maggiore e Chirurgia d’Urgenza e del Trauma.

E’ Chirurgo Tutor per la Scuola di Specializzazione in Chirurgia Generale dell’Università degli Studi di Milano, e ha svolto attività di tutoraggio nei Corsi Master di Chirurgia Laparoscopica presso l’Aesculapium di Tuttlingen (Germania).

Nel 2025 a Palazzo Montecitorio è stato insignito del Premio “Geppino Micheletti”, istituito per celebrare “alte virtù professionali e d’animo, l’abnegazione, il senso del dovere, la dedizione e il coraggio nella professione medica”.

Graduated in 1995 at the University of Milan and trained at the General Surgery of the San Paolo Hospital in Milan, in 2000 he obtained the Board Certification in Emergency Surgery.

Dal 1994 al 1999 ha lavorato presso la Chirurgia Generale dell’Istituto Europeo di Oncologia di Milano, dedicandosi alla Chirurgia Oncologica del distretto gastroenterico in ambito multidisciplinare e partecipando come membro del Comitato Tecnico Scientifico a studi di prevenzione dei tumori del colon-retto.

Ha svolto inoltre attività di cure continuative domiciliari per i malati inguaribili di tumore presso l’Associazione VIDAS di Milano, dedicandosi a tutte le necessità che le persone con tumore incontrano durante la loro vita.

Nel 1999 si è trasferito a Bergamo presso la Chirurgia Generale dell’Ospedale Papa Giovanni XXIII, dove si è perfezionato in Chirurgia Laparoscopica e Mininvasiva con il Dr. Lorenzo Novellino, pioniere della Chirurgia Laparoscopica italiana.

Presso l’Ospedale Papa Giovanni XXIII di Bergamo ha avviato nel 2010 il Programma di Chirurgia Oncologica del Peritoneo, diventando referente per le Unità di Ginecologia e Ostetricia e di Urologia.

Dal 2014 al 2020 è stato Responsabile dell’Unità di Chirurgia Oncologica Avanzata, promuovendo tecniche laparoscopiche innovative nella chirurgia dei tumori e introducendo nuovi interventi di Chirurgia Endocrina Oncologica.

Presso l’Ospedale Papa Giovanni XXIII di Bergamo è stato membro del Trauma Team e della COVID Unit, svolgendo attività clinica e di ricerca sulle complicanze addominali dell’infezione da SARS-CoV2.

Nell’ottobre 2020 è rientrato a Milano, presso l’Ospedale Fatebenefratelli, dove attualmente è Direttore f.f. della Divisione di Chirurgia Generale e Responsabile dell’Unità Semplice di Chirurgia Laparoscopica Mini-invasiva.

Working Address

Division of General Surgery

Fatebenefratelli Hospital Fatebenefratelli

Piazzale Principessa Clotilde 3
20121 Milan (Italy)

Phone 02 63631
Hospital Website
Department of General Surgery

Private Practice

Toll-Free (from Italy) 800 890 890 mon-sat from 8:00 a.m. to 8.00 p.m.

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