ADVANCES IN SURGERY Samuel Vincent G. Yrastorza, MD, FPUA.
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Transcript of ADVANCES IN SURGERY Samuel Vincent G. Yrastorza, MD, FPUA.
![Page 1: ADVANCES IN SURGERY Samuel Vincent G. Yrastorza, MD, FPUA.](https://reader038.fdocuments.net/reader038/viewer/2022110100/56649e2a5503460f94b18509/html5/thumbnails/1.jpg)
ADVANCES IN SURGERY
Samuel Vincent G. Yrastorza, MD, FPUA
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DIAGNOSTICS
Has grown leaps and bounds for the past years
Symptomatic disease
- history and PE still accounts for 80-90% in clinching the diagnosis
Asymptomatic diseases
- screening procedures detect early diseases
- e.g. colonoscopy for colon cancer
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DIAGNOSTIC ADVANCES
Stool exam
Colonoscopy, Abdominal CT scan
Signs and Symptoms + PE
Diagnostic Exam/Imaging
Diagnosis
Before
Abdominal pain, Diarrhea
PE = abdominal mass
Colonic Cancer
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DIAGNOSTIC ADVANCES
Reaching 40 y/o
Screening Colonoscopy
Colonic Cancer
Presently
Without any signs or symptoms of disease
Small colonic mass noted and biopsy done
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DIAGNOSTIC ADVANCES
- Has become more sensitive and specific
- Diagnostic modality of choice for a majority of surgical cases with the advent of
- 3D reconstruction
- CT angiography
CT Scan
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DIAGNOSTIC ADVANCES
CT Scan
prototype 256 slice CT scanEMI CT scan
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IMAGING
CT before 256 slice with 3D reconstruction
COLON
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IMAGING
Colonoscopy 256 slice with 3D reconstruction
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IMAGING
CT before 128 slice with 3D reconstruction
KIDNEYS
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IMAGING
Conventional angiogram
CT angiogram
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Radiotherapy
Brachytherapy- Greek brachy meaning “short”
- radioactive source placed inside or next to the area of treatment
- not just for adjunctive therapy or pallation
- as first line treatment for various forms of cancer
- commonly used for prostate cancer, cervical cancer , head and neck cancer
- radioactive sources
- strontium plaque
- iridium wires
- iodine 125 seeds
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PROSTATE BRACHYTHERAPY
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PROSTATE BRACHYTHERAPY
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PROSTATE BRACHYTHERAPY
- for early and localized cancer
- not for locally advanced or metastatic prostate cancer
- comparable result to radical prostatectomy
- out patient procedure
- lesser complications than radical prostatectomy
- uses iodine 125 seeds
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LOCALIZED PROSTATE CA TREATMENT
Radical prostatectomy
brachytherapy
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CRYOTHERAPY
Freezing ---- thawing---- freezing
Probes/needles directed at organ or tissue
cellular disruption
cell death
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CRYOTHERAPY
Used for
- benign and malignant skin conditions
- early and localized cancers
- liver
- prostate
- hemorrhoids
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CRYOTHERAPY
Used for
- benign and malignant skin conditions
- early and localized cancers
- liver
- prostate (widespread use)
- hemorrhoids
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CRYOTHERAPY
ice balls
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RADIOFREQUENCY ABLATION
Radiofrequency waves passed through probe into tumor
RFA probe (needle) placed inside the tumor
(guided by CT scan or ultrasound or through open procedures)
increased in temperature within tumor
tumor necrosis
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RADIOFREQUENCY ABLATION
Indications
- tumors of the lung, liver, bone
- used for primary and metastatic tumors
- recurrent atrial fibrillation and supraventricular
tachycardia
- varicose veins
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RADIOFREQUENCY ABLATION
RFA probe (needle) RFA generator
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RADIOFREQUENCY ABLATION
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RADIOFREQUENCY ABLATION
Percutaneous approach Laparoscopic approach Open approach
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HIGH INTENSITY FOCUS ULTRASOUND (HIFU)
HIFU
directed at tissue/tumor (by ultrasound or MRI)
increase temperature at target tissue/tumor
tissue/tumor destruction
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HIGH INTENSITY FOCUS ULTRASOUND (HIFU)
used for:
- uterine fibroids
- solid tumor of the brain, bone, breast, liver, pancreas, rectum, kidney, testes, prostate
- earliest and widest use = for prostate cancer
- atrial fibrillation, arrhythmia
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HIGH INTENSITY FOCUS ULTRASOUND (HIFU)
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SURGICAL PROCEDURES
- Trend toward less invasive procedures
The “old way” NOW
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LAPAROSCOPIC SURGERY
- Minimally invasive surgery
- Minimal access surgery
- Key hole surgery
- Pinhole surgery
- Band-aid surgery
*** part of a broader field of ENDOSCOPY
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LAPAROSCOPIC SURGERY
Access
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LAPAROSCOPIC SURGERY
Used for:
- diagnostic
- cancer surgery
- donor organ harvest ( donor nephrectomy)
- vascular surgeries
- practically any abdominal surgery
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LAPAROSCOPIC SURGERY
Advantages
- smaller incisions (smaller scars)
- fast recovery (short hospital stay)
- better visualization of abdminal structures
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LAPAROSCOPIC SURGERY
Disadvantages
- more expensive
- requires expertise
- steep learning curve
- longer operating time (gap is slowly closing with that of open surgery)
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ARTHROSCOPIC SURGERY
- Cystoscopic surgery of the joints
- Similar advantages and disadvantages as laparoscopy
Open Knee
surgery
arthroscopic
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THORACOSCOPIC SURGERY
- Cystoscopic surgery of the THORAX
- Similar advantages and disadvantages as laparoscopy
- Instruments basically the same
Open thoracic surgery thoracoscopic
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OthersCranioscopy???
Not enough space
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Microlaparoscopy
- 3mm port instead of the usual 5 and 10 mm ports
- Smaller instruments
- Lesser pain and scar
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ROBOTIC SURGERY
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ROBOTIC SURGERY
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ROBOTIC SURGERY
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ROBOTIC SURGERY
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ROBOTIC SURGERY
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Telementoring
- Teaching/mentoring through the internet
- “out of school students”
- Open universities
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Telementoring
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Telementoring
- Surgical training though internet or other forms of telecommunications
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Telesurgery
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Stem Cell Therapy
- Use of stem cells to treat certain diseases
- To create new tissues/organs to replace/augment the existing ones
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Stem Cell Therapy
- Use of stem cells to treat certain diseases
- To create new tissues/organs to replace/augment the existing ones
DM type 1 New pancreatic cells transplanted into patient
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Stem Cell Therapy
Stem cells
- unspecialized cells capable of renewing themselves through cell division
- can be induced to become tissue or organ specific cells
- in gut and bone marrow
= stem cells regularly divide to repair and replace worn out or damages tissues
- pancreas and heart
= stem cells divide only under special
conditions
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Stem Cell Therapy
Categories
1) Non embryonic
- somatic or adult stem cell
2) Embryonic- use of human embryo
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Stem Cell Therapy
Non embryonic
e.g. Bone Marrow transplant
- for luekemia
- replacing the old marrow with new Bone Marrow
- new marrow will produce new and normal blood cells
(leukocytes, macrophages etc)
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Stem Cell Therapy
Embryonic
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Stem Cell Therapy
The Promise of stem cells
1) Understanding the development of specialized cells and eventually the evolution of diseases
2) Possibility of renewable source of replacement cells and tissues to treat diseases
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What Else?
Penile Transplant???!!
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