High-precision surgery

Minimally invasive Procedures

From EPSIT to robotic hernia repair — Dr. Kaiser offers the most advanced minimally invasive surgery available in Brazil.

EPSIT Bariatric Anal Fistula Robotic Hernias Hidradenitis
01EPSIT 02Bariatric 03Anal Fistula 04Robotic Hernias 05Hidradenitis
01
Flagship Procedure · Pioneer in Brazil

EPSIT

Endoscopic Pilonidal Sinus Treatment

Pilonidal cyst primarily affects young people between 15 and 35 years old — causing chronic pain, recurrent infections and, with conventional surgeries, weeks of debilitating recovery. Dr. Kaiser introduced the EPSIT technique in Brazil: an endoscopic camera-guided procedure that eliminates the cyst without large incisions, without prolonged hospitalization, and without the risks of open surgery.

Conventional Surgery
EPSIT · Dr. Kaiser
Open incision of 5–10 cm
3 mm fistuloscope
4–8 weeks recovery
Same-day discharge
Daily dressing changes for weeks
No external dressing
20–30% recurrence rate
Recurrence below 10%
Time off work
Return in 24–48 hours
Significant scarring
Minimal or no scarring
Who is it for
Patients with pilonidal cyst — primary or recurrent. Including patients who have already undergone one or more conventional surgeries without definitive resolution. EPSIT is evaluated on a case-by-case basis: if it is not the best option for your case, Dr. Kaiser will recommend the right approach.
+500
Procedures performed
~85%
Success rate
20–45'
Procedure duration
24–48h
Return to activities
How EPSIT works
1
Diagnosis and planning
Clinical evaluation with imaging exams to map the extent of the cyst and define the ideal approach.
2
Fistuloscope insertion
A 3 mm instrument inserted into the cyst tract — no large incisions, no need for hospitalization.
3
Endoscopic visualization
The camera maps the entire extent of the cyst, secondary fistulas, and compromised tissue with millimetric precision.
4
Diseased tissue ablation
Bipolar energy or laser selectively eliminates compromised tissue, preserving the healthy surrounding area.
5
Discharge and recovery
Patient returns home hours after the procedure. Return to normal activities within 24 to 48 hours.
02
Metabolic Surgery

Bariatric
& Metabolic Surgery

Sleeve · Roux-en-Y Bypass

Bariatric surgery is the most effective and long-lasting treatment for severe obesity and its comorbidities — type 2 diabetes, high blood pressure, sleep apnea. Dr. Kaiser performs the main procedures laparoscopically, with shorter hospital stays and significantly faster recovery than open techniques.

Who is it for
Patients with BMI >= 40, or BMI >= 35 with associated comorbidities (type 2 diabetes, high blood pressure, sleep apnea, joint diseases). Indication is made after a complete multidisciplinary clinical evaluation.
1–2 days
Hospital stay
2–4 wks
Recovery
Laparoscopic
Technique
Most performed
Gastric Sleeve
Vertical Gastrectomy
Removal of approximately 80% of the stomach, leaving a narrow vertical tube. Reduces gastric capacity and ghrelin levels — the hunger hormone. Technically simpler procedure with excellent weight loss results.
~80%
Stomach removed
45–60'
Duration
Gastric Bypass
Roux-en-Y — RYGB
Considered the gold standard of bariatric surgery. Creates a small gastric pouch and reroutes the intestine — combining restriction with mild malabsorption. Superior long-term results, especially for type 2 diabetes remission.
Gold
Global standard
60–90'
Duration
03
Coloproctology

Anal Fistula Surgery

Definitive treatment with sphincter preservation

An anal fistula is an abnormal channel between the interior of the anus and the surrounding skin — causing pain, discharge, and recurrent infections. Dr. Kaiser uses modern, minimally invasive techniques for definitive resolution, preserving sphincter function as much as possible and preventing incontinence.

Simple
Fistulotomy
Selected conventional technique
Surgical opening of the fistula tract for healing by secondary intention. Classic technique with a high success rate — indicated for simple, superficial fistulas with low risk of sphincter compromise.
85–90%
Success rate
Simple fistulas
Indication
Complex
VAAFT
Video-Assisted Anal Fistula Treatment
Video-endoscopic technique for complex and recurrent fistulas. The fistuloscope maps the tract with a high-definition camera, enabling precise ablation of diseased tissue with minimal sphincter aggression — zero risk of incontinence.
82.3%
Success rate
Zero
Incontinence risk
Plug & Fibrin Glue
Maximum sphincter preservation
Filling the fistula tract with biological material (collagen plug or fibrin glue) without the need for incisions. Indicated when total sphincter preservation is the priority — even with a lower definitive cure rate.
40–60%
Success rate
No incision
Sphincter intact
Who is it for
Patients with simple or complex anal fistula — including cases with previous surgeries without resolution. The technique is chosen individually based on the location, complexity, and surgical history of the patient.
04
Robotic Surgery

Hernias with Robotic Surgery

Da Vinci System · Millimetric precision

Robotic surgery represents the most advanced level of precision in minimally invasive procedures. With movements finer than the human hand and amplified three-dimensional vision, Dr. Kaiser performs complex hernia repairs with less tissue trauma, less postoperative pain, and accelerated recovery.

Who is it for
Patients with inguinal, umbilical, incisional (cicatricial), or complex abdominal hernias — especially patients with bilateral, recurrent hernias, or those with a history of previous abdominal surgeries.
Outpatient
Surgical setting
1–2 wks
Recovery
Da Vinci
Robotic system
Types of hernia treated
Inguinal hernia (the most common)
Umbilical hernia
Incisional hernia (cicatricial)
Complex abdominal hernias
Robotic surgery advantages
10x magnified 3D vision
High-definition three-dimensional cameras with magnification superior to the naked human eye.
7 degrees of freedom
Articulated instruments beyond the limits of the human hand — millimetric precision at angles impossible for the conventional surgeon.
Less tissue trauma
5–12 mm incisions, less intraoperative bleeding, lower infection risk, and superior cosmetic results.
Lower recurrence rate
Precise mesh placement with optimized fixation — lower recurrence rate compared to the conventional open approach.
05
Chronic Inflammatory Disease

Hidradenitis Suppurativa

Specialized diagnosis and treatment

Hidradenitis suppurativa is a chronic inflammatory disease of the sweat glands that causes painful nodules, abscesses, and fistulas — primarily in the armpits, groin, and gluteal region. Because it is frequently underdiagnosed, many patients live years with the condition without adequate treatment.

Who is it for
Patients with hidradenitis suppurativa with persistent lesions that have not responded to clinical treatment (antibiotics, retinoids, biologics). Surgery is indicated in Hurley stages II and III — when established fistulas are present or there is extensive involvement of the affected area.
Variable
Recovery
Multidisciplinary
Approach
Stage II–III
Surgical indication
Treatment options
Drainage and surgical excision
Indicated for acute abscesses and localized lesions — immediate relief of the inflammatory condition.
Wide excision with reconstruction
Complete removal of the affected area with graft or flap for closure — definitive treatment for extensive cases (stage III).
Follow-up with dermatology
Integrated multidisciplinary approach: surgery + medication management for long-term recurrence prevention.
Late diagnosis is common
Hidradenitis suppurativa takes an average of 7 to 10 years to be correctly diagnosed. If you experience recurrent nodules in the armpits, groin, or buttocks — even without a formal diagnosis — this is the right specialty to seek a second opinion.
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