Pune is adding cardiac programmes, not replacing them
Pune’s interventional cardiology base is widening rather than consolidating. The multi-speciality hospitals in the old core carry the historical volume, and a dedicated cardiology institute has anchored the city’s cardiac referral pattern for decades. What has changed is the layer around them: the growth corridors — Baner and Balewadi, Hinjawadi and Wakad, Kharadi and Viman Nagar, Hadapsar, and the Pimpri-Chinchwad belt — have pulled tertiary care outward, and the hospitals built there over the last fifteen years are now at the size and case volume where a catheterisation lab is a serious proposition rather than an aspiration. A large insured, employer-covered population sits behind that, and a hospital transferring its own chest-pain admissions across the city loses both the case and the relationship.
The engineering consequence matters more here than the commercial one. Mumbai work is dominated by what an existing building will permit. In Pune a meaningful share of projects are new blocks or planned expansions, where the room can be designed before the concrete is poured.
Greenfield freedom is a design advantage, if you use it
Most of what makes a cath lab difficult is decided by geometry, and geometry is only free once.
Room proportion, not just area. A functional single-plane procedure room is 40-55 sq m, roughly 6.5 m by 7 m. On a new floor plate that can be a workable rectangle with the long axis aligned to longitudinal table travel and full C-arm sweep, rather than an awkward 44 sq m that meets area but forces the anaesthesia position into the gantry arc. Slab-to-slab can be set at 3.4-3.6 m from the outset, removing the most common reason a retrofit location fails.
Technical room placement. The technical room is the most routinely under-sized and under-cooled space in the suite. It wants 12-20 sq m for the generator cabinet, image processing racks, UPS and isolation transformer, and it should sit immediately adjacent to the procedure room. Cable length is not cosmetic — it affects impedance and, on some systems, the OEM permitted run length outright.
Routing and neighbours. In a new slab the cable trench is cast in rather than cut, or replaced by a raised floor that eats ceiling height. And because lead equivalence depends partly on the occupancy factor beyond each barrier, siting the lab against corridors, stores and plant rooms rather than wards and waiting areas lowers the shielding requirement legitimately. Both options largely disappear in a retrofit.
Delivery is easier too. New-build sites in the growth corridors generally have crane access, laydown space and a service lift sized for equipment, so the gantry stand, table plinth and lead-lined door leaves arrive as full units. Where the hospital sits in the older core around Deccan, Erandwane or Camp, the constraints start to look like Mumbai’s, and we survey for that rather than assume the easier case.
Teaching hospitals ask for a room with an audience
Pune has one of the densest concentrations of medical education in the country, and a teaching cath lab is not a clinical cath lab with students in it.
Observation is the design driver. Residents, fellows and observers need to follow both the fluoroscopic image and the haemodynamic trace without crowding the sterile field or standing where scatter is highest. That means a control room specified above the usual 12-20 sq m, sightlines through the lead glass window that work for more than two seated operators, and video plus haemodynamic feeds routed to a seminar or demonstration room. Those feeds are cables crossing a lead barrier, so every penetration needs a baffle detailed on the shielding drawing rather than drilled after the panels are up.
Two consequences follow. Room occupancy for heat load and door-opening frequency should be set for the teaching case, not the routine one. And the radiation protection programme has to carry a rotating population of trainees — TLD enrolment, apron availability and racking, induction records — which sits with the RSO but has to be physically supported by the room.
Shielding design comes before civil work, and AERB before both
The sequence is the same in every city and worth stating anyway, because reversing it is the most expensive avoidable mistake in cath lab work. Layout and barrier-by-barrier shielding calculation first, AERB layout submission next, civil work after. Adding lead to a finished wall means opening it again.
The calculation takes workload in mA-minutes per week, operating potential, distance from the scattering volume to a point beyond the barrier, the occupancy factor of the space beyond, and the shielding design goal for it. Because the primary beam is intercepted by the flat-panel detector, every barrier is a secondary barrier assessed against patient scatter. Pune rooms with well-chosen neighbours frequently settle in the 1.5-2 mm Pb range, with the control room barrier and its lead glass window at 2 mm Pb and doors at 2 mm with lapped frames.
AERB revises its processes from time to time, so treat what follows as the shape of the pathway and confirm current requirements and fees on eLORA at the time. Typically: institution registration on eLORA, layout approval before construction, procurement of a type-approved system from a recognised supplier, nomination and approval of a Radiological Safety Officer, OEM installation and acceptance testing, then QA testing and a radiation survey at every barrier, door edge, window frame and console position, and finally the licence application. RSO certification runs on fixed examination cycles and is the item most likely to hold up an otherwise finished room, so start it at design stage. The licence is issued to the hospital, not the contractor — we prepare the file and coordinate the survey, and we cannot guarantee approval. Plan three to six months of regulatory lead time, concurrent with construction.
Alongside AERB sit PMC or PCMC building permissions, a fire NOC under the Maharashtra Fire Prevention and Life Safety Measures Act, facility registration through the state public health machinery, MJPJAY and PM-JAY infrastructure evidence where cardiac packages are claimed, and NMC requirements for teaching institutions.
Power, UPS and HVAC in an inland climate
Cath lab load is spiky rather than large: modest continuous draw, with cine acquisition pulling momentary demand commonly specified in the order of 100-150 kVA. Size the supply for the peak and keep cable impedance low enough to hold voltage regulation inside the OEM band during it — usually a dedicated feeder, often a dedicated transformer. Around that sit a low-impedance earth, equipotential bonding consistent with the assumptions IEC 60601 makes for patient-connected equipment, and isolated power with line isolation monitoring in the patient vicinity. An online UPS of roughly 20-60 kVA with 20-30 minutes autonomy is typical; whether the imaging chain sits on it changes battery footprint and electrical room layout, so fix that early.
Pune’s climate is the easy part. An inland summer design near 23-24°C wet bulb makes the procedure room’s 21-24°C and 40-60% RH a mostly sensible load, so the air handling package is smaller than an identical coastal room. Two notes go the other way. Winter nights drop far enough that a room commissioned in April can fall below the RH band in January, so humidity control must work in both directions. And the technical room, rejecting 5-15 kW continuously inside a narrow 18-25°C band, needs dedicated redundant cooling on essential power however mild the outdoor condition — that heat is generated inside the cabinets.
Timeline, and what a home-city project buys you
A single-plane lab inside an existing shell runs 16-24 weeks from order to handover; a room designed into a new block runs tighter at the civil end because trenching and structural provisions are built in rather than retrofitted. Biplane and hybrid projects run 26-36 weeks, and long-lead imaging delivery governs everything where it exceeds these windows.
The home-city advantage is unglamorous and shows up mostly in the last twenty percent of a project. Survey in 24-48 hours. Design reviews with the OEM project engineer and the hospital team in the same room. Material direct from manufacture without an interstate leg. And when a radiation survey flags a door edge or a penetration, someone is on site that day to remediate and re-survey. Pune is our only office anywhere in India, which is why Pune projects get the fastest response we are capable of giving.
Full technical specification
Shielding calculation method, room and technical-space sizing, single-plane versus biplane versus hybrid, and the full power, HVAC and AERB detail are documented on the cath lab setup service page. This page covers what changes in Pune.