Expert Colorectal Surgery from a Johns Hopkins Fellowship-Trained Specialist
Lalezari Surgical in Los Angeles stands at the forefront of colorectal health, offering state-of-the-art surgical treatments for various conditions affecting the colon, rectum, and anus. Led by Dr. Sepehr Lalezari, MD, FACS, a fellowship-trained surgeon from Johns Hopkins Medicine with over eight years of specialized experience in minimally invasive techniques, our clinic is committed to providing advanced colorectal care with a focus on minimally invasive approaches that enhance recovery and optimize surgical outcomes.
Dr. Lalezari brings exceptional qualifications to colorectal surgery practice in Los Angeles, including his board certification as a Fellow of the American College of Surgeons (FACS), published research in peer-reviewed surgical journals focusing on enhanced recovery protocols and minimally invasive techniques, and recognition as a Los Angeles Magazine “Top Doctor” (2021-2024) and SUPERDOCTORS “Rising Star” (2023-2025). His comprehensive training at Johns Hopkins Medicine provided extensive exposure to complex colorectal procedures, emergency colorectal surgery, and advanced minimally invasive techniques that benefit patients requiring both elective and urgent colorectal interventions.
Our Comprehensive Colorectal Surgery Services
Dr. Lalezari’s extensive training encompasses the full spectrum of colorectal surgery, from routine procedures to complex oncologic and emergency operations. His fellowship training at Johns Hopkins Medicine, combined with his published research in enhanced recovery protocols and minimally invasive techniques, ensures optimal patient outcomes across all colorectal conditions.
- Colon Resection (Colectomy)
Colon resection, or colectomy, involves the surgical removal of a portion of the colon to treat conditions such as colorectal cancer, diverticulitis, inflammatory bowel disease, and severe gastrointestinal bleeding. At Lalezari Surgical, Dr. Lalezari uses advanced minimally invasive laparoscopic and robotic techniques to ensure faster recovery and superior outcomes for patients requiring colon surgery.
Types of Colon Resection Performed:
- Right Hemicolectomy: For cecal, ascending colon, and proximal transverse colon conditions
- Left Hemicolectomy: For descending colon and distal transverse colon pathology
- Sigmoid Colectomy: Most commonly for diverticulitis and sigmoid cancer
- Low Anterior Resection: For rectal and rectosigmoid conditions with sphincter preservation
- Total Colectomy: For extensive inflammatory bowel disease or polyposis syndromes
Dr. Lalezari’s Advanced Colectomy Techniques:
- Minimally invasive laparoscopic approaches for reduced trauma and faster healing
- Robotic-assisted surgery when appropriate for enhanced precision
- Enhanced Recovery After Surgery (ERAS) protocols based on published research
- Advanced anastomotic techniques for secure intestinal connections
- Comprehensive lymph node dissection for oncologic cases
Expected Outcomes: Patients typically experience shorter hospital stays (2-3 days), faster return to normal activities (2-4 weeks), and excellent long-term functional outcomes with Dr. Lalezari’s minimally invasive approaches.
- Diverticulitis Surgery
Diverticulitis surgery is performed to remove inflamed or infected diverticula from the colon, particularly when complications like perforation, abscess formation, or recurrent infections occur. Dr. Lalezari utilizes the latest minimally invasive surgical methods to address these issues effectively, minimizing recovery time while improving patient health and preventing future complications.
Indications for Diverticulitis Surgery:
- Recurrent Diverticulitis: Multiple episodes requiring hospitalization or antibiotic treatment
- Complicated Diverticulitis: Perforation, abscess formation, or bowel obstruction
- Chronic Symptoms: Persistent pain and bowel dysfunction affecting quality of life
- Failed Medical Management: Inability to control symptoms with conservative treatment
Surgical Approach Options:
- Elective Laparoscopic Sigmoid Colectomy: Planned procedure for recurrent disease
- Emergency Surgery: Urgent intervention for perforation or severe complications
- Single-Stage vs. Multi-Stage Procedures: Individualized approach based on patient condition
- Hartmann’s Procedure: When primary anastomosis is not safe
Advanced Techniques for Optimal Outcomes:
- Comprehensive mobilization of the splenic flexure for tension-free anastomosis
- Advanced vessel sealing technology for minimal blood loss
- Meticulous identification and preservation of important anatomical structures
- Intraoperative colonoscopy when indicated for complete evaluation
- Appendectomy
Appendectomy is the surgical removal of the appendix, often necessitated by appendicitis, which is inflammation of the appendix. Lalezari Surgical offers both traditional open appendectomy and minimally invasive laparoscopic techniques, with Dr. Lalezari’s expertise ensuring optimal approach selection aimed at reducing pain and speeding recovery for patients.
Types of Appendectomy Performed:
- Laparoscopic Appendectomy: Minimally invasive approach for most cases
- Open Appendectomy: When laparoscopic approach is not feasible
- Interval Appendectomy: Planned removal after conservative treatment of complicated appendicitis
- Incidental Appendectomy: Removal during other abdominal procedures when appropriate
Dr. Lalezari’s Appendectomy Expertise:
- Advanced laparoscopic techniques for complex and perforated appendicitis
- Experience with complicated cases including appendiceal masses and abscesses
- Minimally invasive approaches even for complex presentations
- Comprehensive post-operative care for optimal healing
Clinical Advantages:
- Same-day discharge for uncomplicated laparoscopic appendectomy
- Minimal scarring with three small incisions
- Faster return to normal activities (1-2 weeks)
- Lower infection rates compared to open approaches
- Hemorrhoid Removal (Hemorrhoidectomy)
This procedure is designed to remove painful or bleeding hemorrhoids that have not responded to conservative treatment. Dr. Lalezari is proficient in the latest minimally invasive hemorrhoid removal techniques, providing effective relief with less discomfort and quicker recovery times compared to traditional methods.
Advanced Hemorrhoid Treatment Options:
- Traditional Hemorrhoidectomy: Complete surgical removal for severe cases
- Stapled Hemorrhoidopexy (PPH): Minimally invasive approach for internal hemorrhoids
- Transanal Hemorrhoidal Dearterialization (THD): Doppler-guided technique
- Rubber Band Ligation: Office-based procedure for appropriate candidates
Specialized Techniques for Optimal Outcomes:
- Advanced pain management protocols for comfortable recovery
- Minimally invasive approaches when appropriate
- Comprehensive post-operative care instructions
- Long-term prevention strategies and lifestyle counseling
Expected Recovery: Most patients return to normal activities within 1-2 weeks with proper pain management and wound care protocols.
- Polypectomy
Polypectomy is the removal of polyps from the colon or rectum, typically performed during colonoscopy to prevent potential progression to cancer. At Lalezari Surgical, Dr. Lalezari uses advanced endoscopic techniques to safely and effectively remove polyps, ensuring the best possible care and cancer prevention for patients.
Types of Polyp Removal:
- Endoscopic Polypectomy: Most common approach for pedunculated and sessile polyps
- Endoscopic Mucosal Resection (EMR): For larger flat lesions
- Surgical Polypectomy: When endoscopic removal is not feasible or safe
- Transanal Excision: For low rectal polyps not amenable to colonoscopic removal
Advanced Endoscopic Capabilities:
- High-definition colonoscopy with advanced imaging
- Comprehensive polyp assessment and risk stratification
- Advanced polypectomy techniques for complex lesions
- Immediate pathologic evaluation and follow-up planning
- Lumps and Bumps Removal
This minor surgical procedure involves the removal of non-cancerous growths like cysts, lipomas, and skin tags from the skin or underlying tissues. Dr. Lalezari uses precise and minimally invasive methods to excise these growths, providing cosmetic improvements and alleviating any associated discomfort.
Common Conditions Treated:
- Sebaceous Cysts: Complete excision to prevent recurrence
- Lipomas: Removal of benign fatty tumors
- Skin Tags: Simple excision for cosmetic improvement
- Pilonidal Cysts: Specialized techniques for complete treatment
Minimally Invasive Techniques:
- Small incisions with optimal cosmetic outcomes
- Local anesthesia for patient comfort
- Same-day discharge for most procedures
- Comprehensive wound care instructions
- Gastroparesis and Gastric Stimulator
Gastroparesis treatment at Lalezari Surgical includes the implantation of a gastric stimulator, a sophisticated device that sends electrical impulses to the stomach muscles to improve gastric emptying. This procedure is particularly beneficial for patients who suffer from severe symptoms such as nausea, vomiting, and bloating and have not responded well to other treatments.
Gastric Stimulator Implantation:
- Advanced Laparoscopic Technique: Minimally invasive implantation procedure
- Precise Electrode Placement: Optimal positioning for maximum therapeutic benefit
- Device Programming: Individualized settings for optimal symptom control
- Long-term Management: Ongoing device monitoring and adjustment
Ideal Candidates for Gastric Stimulation:
- Severe gastroparesis symptoms refractory to medical management
- Diabetic or idiopathic gastroparesis
- Significant impact on quality of life and nutritional status
- Failed response to prokinetic medications and dietary modifications
Advanced Colorectal Surgery Specializations
- Oncologic Colorectal Surgery
Dr. Lalezari’s training includes comprehensive oncologic principles for colorectal cancer treatment:
- Complete Mesocolic Excision: Advanced technique for optimal oncologic outcomes
- Total Mesorectal Excision: Gold standard for rectal cancer surgery
- Multidisciplinary Cancer Care: Coordination with medical and radiation oncology
- Minimally Invasive Cancer Surgery: Laparoscopic and robotic approaches when appropriate
- Sphincter-Preserving Surgery: Advanced techniques to avoid permanent colostomy when possible
- Emergency Colorectal Surgery
Dr. Lalezari’s experience includes urgent and emergency colorectal procedures:
- Bowel Obstruction: Immediate surgical intervention for complete obstruction
- Gastrointestinal Bleeding: Urgent procedures for life-threatening hemorrhage
- Perforated Bowel: Emergency surgery for peritonitis and sepsis
- Ischemic Bowel: Urgent resection for compromised bowel viability
- Trauma Surgery: Management of colorectal injuries
- Complex Revision Surgery
- Failed Previous Operations: Revision procedures for complications or recurrence
- Anastomotic Problems: Management of leaks, strictures, and other complications
- Stoma Complications: Revision and optimization of ostomies
- Complex Fistula Management: Surgical treatment of enterocutaneous and other fistulas
Why Choose Lalezari Surgical for Colorectal Surgery?
- Exceptional Expertise and Training
Dr. Lalezari brings unique qualifications to colorectal surgery in Los Angeles:
- Fellowship Training: Johns Hopkins Medicine, one of the world’s premier surgical training programs
- Board Certification: Fellow of the American College of Surgeons (FACS)
- Specialized Experience: Over eight years of minimally invasive colorectal surgery
- Published Research: Peer-reviewed articles in enhanced recovery and surgical techniques
- Professional Recognition: Los Angeles Magazine “Top Doctor” and SUPERDOCTORS awards
- Advanced Surgical Technology and Innovation
Lalezari Surgical utilizes cutting-edge technology for optimal patient outcomes:
- Advanced Laparoscopic Systems: High-definition visualization and precision instruments
- Robotic Surgery Capabilities: Enhanced dexterity and precision for complex procedures
- Enhanced Recovery Protocols: Evidence-based approaches to optimize healing
- Comprehensive Monitoring: Real-time patient safety and outcome optimization
- Comprehensive Patient Care Excellence
We pride ourselves on offering personalized care from the initial consultation through complete recovery:
- Multidisciplinary Approach: Coordination with gastroenterologists, oncologists, and other specialists
- Patient Education: Comprehensive information about conditions and treatment options
- Individualized Treatment Plans: Tailored approaches based on patient-specific factors
- Long-term Follow-up: Continued care and monitoring for optimal outcomes
- Minimally Invasive Surgery Leadership
Dr. Lalezari is a leader in minimally invasive colorectal surgery, providing patients with:
- Reduced Post-operative Pain: Smaller incisions and less tissue trauma
- Faster Recovery Times: Earlier return to normal activities and work
- Lower Complication Rates: Reduced risk of wound infections and hernias
- Improved Cosmetic Outcomes: Minimal scarring with excellent healing
- Shorter Hospital Stays: Many procedures allow same-day or overnight discharge
What to Expect from Colorectal Surgery at Lalezari Surgical?
- Consultation and Comprehensive Diagnosis
The process begins with a thorough consultation with Dr. Lalezari, including comprehensive evaluation and advanced diagnostic testing to determine the precise nature of your condition and the most effective treatment approach.
Initial Evaluation Process:
- Detailed Medical History: Comprehensive review of symptoms, previous treatments, and medical conditions
- Physical Examination: Thorough assessment including digital rectal examination when appropriate
- Diagnostic Testing: Advanced imaging studies, colonoscopy, and laboratory evaluation as indicated
- Risk Assessment: Evaluation of surgical candidacy and optimization of medical conditions
- Treatment Planning: Discussion of all available options including surgical and non-surgical approaches
Advanced Diagnostic Capabilities:
- High-resolution CT scanning for detailed anatomical assessment
- MRI evaluation for rectal cancer staging and complex cases
- Advanced colonoscopy with high-definition imaging
- Comprehensive laboratory evaluation including tumor markers when indicated
- Multidisciplinary tumor board consultation for cancer cases
- Surgical Procedure Excellence
Depending on your specific needs and condition, you may undergo one of our specialized surgical procedures, performed under the highest standards of surgical excellence to improve your colorectal health and overall quality of life.
Pre-operative Preparation:
- Medical Optimization: Correction of anemia, nutritional deficiencies, and medical conditions
- Bowel Preparation: When indicated, comprehensive bowel cleansing protocols
- Patient Education: Detailed explanation of the procedure, risks, and expected outcomes
- Anesthesia Consultation: Pre-operative evaluation and planning for optimal perioperative care
- Family and Support System Preparation: Education and involvement of support network
Intraoperative Excellence:
- Advanced Surgical Techniques: Minimally invasive approaches when appropriate
- Comprehensive Safety Monitoring: Real-time assessment of patient status
- Quality Assurance Measures: Systematic approach to surgical excellence
- Immediate Post-operative Assessment: Evaluation of surgical success and patient status
- Recovery and Comprehensive Follow-Up
After surgery, we provide extensive postoperative care and clear instructions for at-home recovery. Follow-up appointments are essential to monitor your progress and ensure optimal healing and long-term success.
Immediate Post-operative Care:
- Pain Management: Multimodal approaches for optimal comfort
- Early Mobilization: Enhanced recovery protocols for faster healing
- Nutritional Support: Dietary advancement and supplementation as needed
- Wound Care: Comprehensive instructions and monitoring
- Complication Prevention: Proactive strategies to minimize risks
Long-term Recovery Support:
- Regular Follow-up Visits: Scheduled appointments to monitor healing and outcomes
- Functional Assessment: Evaluation of bowel function and quality of life
- Surveillance Protocols: Long-term monitoring for cancer cases
- Lifestyle Counseling: Diet, activity, and prevention strategies
- Ongoing Support: Access to Dr. Lalezari for questions and concerns
Conditions We Treat
- Benign Colorectal Conditions
- Diverticular Disease: Acute and chronic diverticulitis, diverticular bleeding
- Inflammatory Bowel Disease: Crohn’s disease and ulcerative colitis requiring surgery
- Hemorrhoids: Internal and external hemorrhoids refractory to conservative treatment
- Anal Fissures: Chronic fissures requiring surgical intervention
- Pilonidal Disease: Infected and recurrent pilonidal cysts
- Malignant Conditions
- Colorectal Cancer: Colon and rectal cancers requiring surgical resection
- Polyps: Large or complex polyps not amenable to endoscopic removal
- Carcinoid Tumors: Neuroendocrine tumors of the colon and rectum
- Gastrointestinal Stromal Tumors (GIST): Specialized surgical management
- Emergency Conditions
- Bowel Obstruction: Complete or partial intestinal blockage
- Gastrointestinal Bleeding: Life-threatening hemorrhage requiring surgical intervention
- Perforated Bowel: Intestinal perforation with peritonitis
- Ischemic Bowel: Compromised blood supply requiring urgent surgery
- Functional Disorders
- Severe Constipation: Refractory to medical management
- Gastroparesis: Delayed gastric emptying requiring gastric stimulator
- Rectal Prolapse: Surgical correction of rectal prolapse
Frequently Asked Questions
Dr. Lalezari's fellowship training at Johns Hopkins Medicine, combined with his board certification, published research, and extensive experience in minimally invasive techniques, provides patients with access to the most advanced colorectal surgery care available in Los Angeles.
Minimally invasive techniques result in less post-operative pain, smaller scars, faster recovery, shorter hospital stays, and lower complication rates compared to traditional open surgery approaches.
Dr. Lalezari's comprehensive evaluation will determine if surgery is the best treatment option for your condition. Many colorectal conditions can be managed non-surgically, and surgery is recommended only when it provides the best long-term outcomes.
Recovery varies by procedure type and individual factors. Dr. Lalezari's minimally invasive techniques typically allow for faster recovery, with most patients returning to normal activities within 2-6 weeks depending on the specific procedure.
All surgery carries risks, but Dr. Lalezari's extensive training and experience minimize complications. Specific risks vary by procedure and are thoroughly discussed during your consultation.
Most colorectal procedures do not require a permanent colostomy. Dr. Lalezari uses advanced techniques to preserve normal bowel function whenever possible. When a stoma is necessary, comprehensive education and support are provided.
Schedule a Consultation at Lalezari Surgical
If you’re seeking treatment for colorectal conditions and require expert surgical intervention, Lalezari Surgical is here to provide you with the most advanced care available. Dr. Lalezari’s unique combination of Johns Hopkins fellowship training, extensive minimally invasive surgery experience, and commitment to patient-centered care provides the foundation for exceptional colorectal surgery outcomes.
Why Choose Dr. Lalezari for Colorectal Surgery:
- Fellowship training from Johns Hopkins Medicine in advanced surgical techniques
- Board-certified FACS with 8+ years of specialized colorectal surgery experience
- Published researcher in enhanced recovery protocols and minimally invasive techniques
- Los Angeles Magazine “Top Doctor” and SUPERDOCTORS recognition
- Comprehensive facility with advanced laparoscopic and robotic capabilities
- Multidisciplinary approach to complex colorectal conditions
Contact our Los Angeles clinic today to schedule a consultation with Dr. Lalezari. Our team is ready to support you through every step of your treatment and recovery, ensuring you return to health with confidence and optimal function.
What to Expect During Your Consultation:
- Personal evaluation by Dr. Lalezari with comprehensive assessment
- Discussion of all available treatment options, surgical and non-surgical
- Realistic outcome expectations and individualized risk assessment
- Development of personalized treatment plan
- Insurance verification and financial counseling
- Access to advanced diagnostic capabilities and multidisciplinary care
Dr. Sepehr Lalezari is a board-certified colorectal surgeon with fellowship training from Johns Hopkins Medicine. Individual results may vary. This information is for educational purposes and does not replace professional medical advice. Always consult with Dr. Lalezari or a qualified healthcare provider for personalized medical guidance.
