Kidney Stones in London — Cavell Hospital

Kidney stone pain — renal colic — arrives without warning and can be completely incapacitating within minutes. A stone migrating down the ureter creates progressive obstruction and pressure; without specialist assessment, patients have no way of knowing whether watchful waiting is safe or whether a procedure is urgently needed. The risk is not trivial: an obstructed kidney with concurrent infection can deteriorate to sepsis within hours. Private urology at Cavell Hospital eliminates the wait between symptom onset and expert assessment. Mr. Harshawardhan Godbole FRCS brings the diagnostic standards of his Cancer Lead role at North Middlesex University Hospital to every private consultation at Cavell. This means imaging-first assessment — CT KUB is arranged promptly rather than relying on the ultrasound-first approach that characterises many community pathways and misses a significant proportion of ureteric stones.

### Stone Size Thresholds That Change Treatment Decisions

The 10mm threshold matters clinically: stones below this size in the ureter have a meaningful spontaneous passage rate with medical expulsive therapy; stones at or above 10mm rarely pass without intervention. At Cavell Hospital, Mr. Godbole's team uses CT measurement — not ultrasound estimation — to establish accurate stone dimensions before making this recommendation. For Enfield patients, this means not being sent home with painkillers for a stone that actually needs ureteroscopy, and equally, not being rushed to theatre for a stone that would have passed naturally.

### Ureteroscopy in Private Practice — What Enfield Patients Should Know

Flexible ureteroscopy with holmium laser lithotripsy is the highest stone-free rate procedure for ureteric and renal pelvis stones. In the NHS, access to this procedure involves significant waiting. At Cavell Hospital, flexible ureteroscopy can typically be scheduled within 1–2 weeks of diagnosis for appropriate candidates. Furthermore, the private setting means consultant-led care throughout — the same surgeon who assesses you performs the procedure and manages your follow-up.

Why choose Cavell Hospital for kidney stones?

• Cavell Hospital on Uplands Park Road sits within a 5-minute walk of Enfield Chase rail station — making it easily accessible for Enfield Town residents and for patients from Palmers Green, Winchmore Hill, and Barnet who travel by rail rather than by car.
• Enfield has a long NHS urology waiting list — patients with renal colic who contact HRG Urology at Cavell Hospital are typically seen within 2–5 working days, receiving CT KUB and a consultant assessment that would take months through an NHS referral pathway.
• Mr. Godbole consults personally at Cavell Hospital for all kidney stone assessments — Enfield patients are not seen by a junior registrar and escalated later, but receive consultant-led assessment and decision-making from the first appointment.

Kidney Stones cost at Cavell Hospital

Urinary stones (calculi)

The majority of kidney stones consist of calcium and oxalate. While dietary factors play a role, underlying metabolic disorders may also contribute. Less commonly, stones may be composed of uric acid. Clinical symptoms typically appear when stones move or cause obstruction. Pain is the predominant symptom, often accompanied by fever, chills, and rigors. Some stones grow without causing symptoms, potentially leading to significant kidney damage and serious health consequences. Timely investigation, precise diagnosis, and appropriate treatment are vital to prevent complications. However, not every stone requires active intervention. A comprehensive approach to stone management is essential, with personalised treatment plans tailored to each patient's specific circumstances.

Risk factors for kidney stones

• Elevated BMI
• Excessive animal protein consumption
• Inadequate fluid intake
• Iatrogenic causes including bariatric surgery
• Familial predisposition

Acute presentation of kidney stones

Kidney stones commonly present as an emergency with the following symptoms:

• Severe colicky (gripping) pain
• Pain typically radiating from the loin to the groin
• Possible blood in the urine
• General malaise with fever, chills, and rigors
• Urinary frequency and urgency with a burning sensation

Management of urinary stones

Effective stone management requires accurate diagnosis combined with a holistic assessment of the patient to determine the most appropriate treatment. The stone's size, shape, location, and position are critical factors, while the presence or absence of obstruction determines the clinical urgency. Treatment options range from non-invasive to minimally invasive approaches:

• Extracorporeal Shock Wave Lithotripsy (ESWL)
• Ureteroscopy with Laser Lithotripsy (URS/RIRS)
• Percutaneous Nephrolithotomy (PCNL)
• Laparoscopic stone surgery

Coming in for your kidney stones appointment

Patient reviews — kidney stones at Cavell Hospital

Frequently asked questions